CN101952043B - Spray gun - Google Patents

Spray gun Download PDF

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Publication number
CN101952043B
CN101952043B CN200980106245.XA CN200980106245A CN101952043B CN 101952043 B CN101952043 B CN 101952043B CN 200980106245 A CN200980106245 A CN 200980106245A CN 101952043 B CN101952043 B CN 101952043B
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CN
China
Prior art keywords
connecting portion
spray gun
injection unit
designed
latch member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN200980106245.XA
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Chinese (zh)
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CN101952043A (en
Inventor
J·J·贝格纳
N·特科古尔
J·阿尔布雷希特
P·伊贝勒
C·克拉默
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Robert Bosch GmbH
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Robert Bosch GmbH
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Publication date
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Publication of CN101952043A publication Critical patent/CN101952043A/en
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Publication of CN101952043B publication Critical patent/CN101952043B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2405Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle
    • B05B7/2416Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle characterised by the means for producing or supplying the atomising fluid, e.g. air hoses, air pumps, gas containers, compressors, fans, ventilators, their drives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/65Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits

Abstract

Spray gun (10), comprising a housing (18) with a handle (20), a spray unit (14) that comprises the spray nozzle (26) of the spray gun, and a connection apparatus (16) for removably connecting a connection area (32) of the housing to a connection area of the spray unit, wherein the connection area of the housing and the connection area (30) of the spray unit are configured such that they can be inserted into one another through a straight-line relative motion and connected together.

Description

Spray gun
The present invention relates to a kind of for exporting the spray gun of spraying of material, include a shell, on this shell, be provided with a handgrip, also has an injection unit, there is the nozzle of spray gun this unit, also includes a jockey for the connecting portion of connected with outer casing and the connecting portion of injection unit removably.
In the different design of prior art, there is the spray gun of described type.Can eject material spray with this spray gun, especially can dilute with water and the material spray that contains solvent, for example, as pigment, paint, transparent pigment, priming paint, mordant and timber protective agent, some that this just lists.Mainly apply low-pressure fuel injection method as injection method, in this method, material spray is also sprayed by the large air mass flow that is approximately greater than 200 liters/min under the low pressure of about 0.2 to 0.5 bar.This HVLP-injection method is low owing to excessively spraying, and that is to say due to its little spray loss, and therefore coating rate reaches about 65% also surpasses traditional method, and the coating rate that the latter reaches is between about 20% and about 35%.This method is characterised in that the air cone that surrounds material spray, the formation that it has reduced to cross injection and colored mist.Therefore its advantage, as saved paint, has reduced the transmitting of solvent, and this is effective especially to environmental protection.
Such ejecting gun is divided into two critical pieces, and a namely shell is provided with a handgrip on this shell, also has an injection unit, and they can interconnect and be separated from each other by means of a jockey.Therefore a kind of such segmentation of spray gun is favourable: injection unit can separate with shell, therefore can make injection unit clean more easily.Dangerous below not having in the time cleaning injection unit in addition: the cleaning process housing at injection unit contacts with injection water.Latter is particularly advantageous, if shell forms an electric unit, this unit has electric component, for example, as compressed air generator, exports the required pressure of material spray for generation of that by spray gun.
In known spray gun, injection unit and shell interfix, its method is that the connecting portion of shell and the connecting portion of injection unit cooperatively interact in the first step, intermeshing in other words, and then in second step by a steep screw thread of being located on connecting portion, fix with each other while rotating implementing about 90 °.Step housing and injection unit at corresponding order conversely can be separated from each other again.But here especially the assembling of parts are problems because the cooperation of shell and injection unit can only complete in a narrow angular range.Although this has mark, require the sensation of a lot of finger tips.Rotation direction in the time of two parts dismountings also needs explanation in addition.This causes, and a user who just seldom operates spray gun must carry out some tests before successful separate parts.The mutual rotation of two other parts has following danger: in the time that injection unit is tilting, conventionally fixed the material spray container that includes material spray on this injection unit, material spray enters injection unit or even that design of shell only in the position for delivery of air.The cleaning that this position is followed is required great effort very much.
According to this prior art, task of the present invention is to propose a kind of spray gun that starts described type, and this spray gun has a kind of alternative structure, and has overcome at least in part former described problem.
Summary of the invention
The present invention proposes a kind of spray gun in order to solve this task, it has a shell, is provided with a handgrip on this shell, also has an injection unit, there is the nozzle of spray gun this unit, also includes a jockey for the connecting portion of connected with outer casing and the connecting portion of injection unit removably.
According to the connecting portion of the connecting portion of the such designed enclosures of the present invention and injection unit, make them in a kind of straight line relative motion situation of enforcement, mutually insert and to interconnect.In other words, the known rotation relative motion that is to say parts is replaced by a kind of straight line relative motion in the time of its assembling and dismounting, has therefore eliminated beginning described, due to the shortcoming of rotating relative motion and causing.
Two connecting portions are preferably designed so that the Connection Element that can mutually insert of annular, and the inner periphery profile of one of them Connection Element is at least in part corresponding to the outer circumferential profile of another Connection Element.Annular Connection Element for example can have a kind of circle or polygonal profile.Relevant therewith should be clear: the gap between the inner periphery of a Connection Element and the excircle of another Connection Element should be enough greatly to guarantee that the no problem ground of Connection Element is inserted mutually, on the other hand but should be enough little, to stop the relative motion between Connection Element under parts confined state, thereby between shell and injection unit, can not produce unwelcome oscillating motion during application spray gun.
Advantageously be provided with a guider, its design should make its connecting portion to shell and the connecting portion of injection unit lead during their relative motions.Such guider can be as generations of getting off: a Connection Element, as previously described, be designed to polygon, and therefore check in mutual the relatively rotating of connecting portion between insertion moving period.Certainly there is following possibility here: user, in the time that insertion process starts, by wrong ground of Connection Element mutual orientation, thereby can not mutually insert connecting portion on desirable position.Guider thereby preferably design like this, make its bright regulation Connection Element relative orientation really in insertion process.According to the preferred design of one of the present invention, guider thereby include at least one groove and at least one projection, wherein said at least one projection is leading during relative motion in described at least one groove.Can during insertion process, realize in this way a kind of clear and definite relative orientation of connecting portion.
Jockey has advantageously comprised at least one latch member, and it designs like this, thereby it is fixed relative position of predetermining of connecting portion and orientation.Therefore latch member has stoped the relative motion of connecting portion under the state being plugged together.
Described at least one latch member is a stopping element being engaged at least one space preferably.According to the preferred design of one of the present invention, stopping element is designed to ring-type, and can be out of shape in the time applying a power, wherein stopping element is being engaged in described at least one space under deformation state not, departs from coupling and state after distortion is next with space.
In addition be preferably provided with at least one operating element for handling latch member, for example, as a palp button in the outside from shell or like parts.But being advantageously provided with for reasons of safety multiple operating elements, they must be handled together, to latch member is unclamped from its locked position.Correspondingly reduce such danger: the locked position of latch member is by mistake abandoned.For example can be provided with two buttons, they are arranged on the diverse location of spray gun and must operate together, to handle latch member.
Finally, jockey comprises preferably at least one block according to the present invention, and an one connecting portion is top this block in the time inserting motion end, and it has stipulated the position fixing by latch member.
Embodiment
Be illustrated more accurately for a kind of form of implementation of giving an example of the present invention according to accompanying drawing below.Accompanying drawing is depicted as:
Fig. 1 is stereogram under confined state according to the spray gun of a kind of form of implementation of the present invention;
The side view of spray gun shown in Fig. 2 Fig. 1 under disassembly status;
Fig. 3 is at the spray gun shown in Fig. 1 and Fig. 2, for assembling and dismantle broken section and the enlarged side view of connecting portion of spray gun;
Fig. 4 A is along the cutaway view of the first connecting portion of the IV-IV line in Fig. 3;
Fig. 4 B is along the cutaway view of the second connecting portion of the V-V line in Fig. 3, and wherein the second connecting portion stopping element is in the undeformed state of one;
Fig. 5 A is corresponding to a sectional view of Fig. 4 A;
Fig. 5 B is along the cutaway view of the second connecting portion of the V-V line in Fig. 3, wherein the second connecting portion stopping element state in distortion.
Adopt identical Reference numeral for identical member below.
Fig. 1 has represented a kind of according to the stereogram of the spray gun 10 of low-pressure fuel injection method (HVLP) work, spray gun 10 according to a kind of form of implementation of the present invention under confined state.Spray gun 10 is here made up of two master units, is namely made up of an electric unit 12 and an injection unit 14, and they can interfix to demolition by means of a jockey 16, and this also will explain detailedly according to Fig. 2 below.Electric unit 12 includes a shell 18, and it has stipulated the reception space for the electric parts of spray gun 10, and in particular for the reception space of the compressed air generator do not expressed, under the pressure producing at this device, spray gun 10 sprays material spray.It is integral that handgrip 20 that meets man-machine principle moulding is designed to shell 18, and handgrip can cosily be held for handling spray gun by user.On handgrip 20, be provided with a master cock 22 for access and disconnect spray gun 10.Supply with necessary electric energy by a cable 24 that is arranged in handgrip 20 lower ends to electric unit 12.
Arrange a nozzle 26 at the front end of injection unit 14, can adjust shape and the direction of the material spray beam of outflow from spray gun 10 by means of this nozzle.Nozzle 26 for example can design like this, and a user can be selected between the oval-shaped ejaculation beam of oval-shaped or a kind of vertical extension a kind of point-like, horizontally extending.The shape that penetrates beam can correspondingly be matched with corresponding application.A material spray container 28 can have been fixed to demolition in lower end at injection unit 14, and containers store material spray.Material spray can be for example pigment, paint, transparent pigment, priming paint, mordant and timber protective agent, some possibilities that this just lists.Fixing can for example by means of screw thread link of material spray container 28 on injection unit 14, socket connection, clamping connects or similarly connects and carry out.
Fig. 2 is the side view of spray gun 10 shown in Fig. 1 under disassembly status, under the state namely separating at injection unit 14 and electric unit 12.
In order releasably to connect two unit 12 and 14, injection unit 14 includes the first connecting portion 30, and electric unit 12 includes the second connecting portion 32, wherein the second connecting portion 32 of electric unit 12 covers in by shell 18 in Fig. 2, and correspondingly just can't see.The first connecting portion 30 forms jockey 16 together with the second connecting portion 32, and it is below by Fig. 3,4A, and 4B, 5A and 5B will narrate more accurately.
Fig. 3 is a fragmentary side cross-sectional view of jockey 16; Fig. 4 A is the first connecting portion 30 along the cutaway view of the IV-IV line in Fig. 3; Fig. 4 B is that wherein the second connecting portion 32 stopping element is in the undeformed state of one along the cutaway view of the second connecting portion 32 of the V-V line in Fig. 3; Fig. 5 A is a side view corresponding to Fig. 4 A; Fig. 5 B is the cutaway view along the second connecting portion 32 of the V-V line in Fig. 3, wherein the second connecting portion 32 stopping element state in distortion.
It is circular cross section that connecting portion 30 and 32 is designed to have basic as annular Connection Element respectively.The largest outer diameter da max of the first connecting portion 30 is designed to be slightly less than the minimum diameter di min of the second connecting portion 32, thereby can make the first connecting portion 30 insert 32 li of the second connecting portions.At largest outer diameter da max and minimum diameter di min, between gap should select like this, thereby make it the first connecting portion 30 is inserted into 32 li of the second connecting portions enough greatly no problemly, but also should be enough little, thereby under connecting portion 30 and 32 insertion states, between connecting portion 30 and 32, can not produce special oscillating motion.
The first connecting portion 30 includes mutual opposed guide groove 34 on two diameters, they engage and are engaged to two direction protrusions 36 in the first connecting portion 30 is inserted into the process of 32 li of the second connecting portions, and these projections are stretched out in the diametrically opposite position of correspondence from the internal diameter of the second connecting portion 32.Guide groove 34 forms a guider together with direction protrusion 36, and it has guaranteed: the first connecting portion 30 is inserted into 32 li of the second connecting portions in a direction of predetermining.Guide groove 34 and/or direction protrusion 36 can first intermeshing to portion's section in there is a chamfering (not shown), they make direction protrusion 36 more easily enter 34 li of guide groove.
Should be clear at this, guide groove 34 and direction protrusion 36 can alternatively also mutually be setovered and arrange in diametric(al) respectively, namely mutually needn't opposedly arrange.In addition should be clear, also can selectively only be provided with a guide groove and only have a direction protrusion, or being provided with more than two guide groove and two direction protrusions.
On the excircle of the first connecting portion 30, arranged an annular seal 38, it,, under the state inserting, seals up the intermediate cavity between the first connecting portion 30 and the second connecting portion 32.Sealing 38 has correspondingly stoped compressed air outflow from connecting portion 30 and 32.
The inner periphery of this external the second connecting portion 32 is provided with the backstop of back-up ring 39 forms, and when the first attaching parts 30 are moved end in insertion, backstop thereon.
On the excircle of the first connecting portion 30, there are two mutual opposed channel shaped spaces 40 in diametric(al).Also on the excircle of the second connecting portion 32, arranged mutual opposed channel shaped space 42 in two diametric(al)s similarly.Be engaged to an annular stopping element 44 in the engagement of 42 li, this channel shaped space, it is designed to can be out of shape in the time applying power.Under its indeformable state, stopping element 44 had both been engaged to 42 li, the channel shaped space of the second connecting portion 32, also be engaged to 40 li, the channel shaped space of the first connecting portion 30, if the first connecting portion 30 is inserted in 32 li of the second connecting portions, wherein under its deformation state, its is thrown off and the engaging of the channel shaped space 40 of the first connecting portion 30.Channel shaped space 40 and 42 guarantees by the back-up ring 39 that is used as block in the layout of aliging in the radial direction with stopping element 44.
Fig. 4 B has represented the annular stop element 44 under deformation state not.Represent together with Fig. 4 A: at stopping element 44 not under deformation state, in the vertical direction, ultimate range amax between the mutual opposed inner side of stopping element 44 is less than the maximum outside diameter da max of the first connecting portion 30, therefore stopping element 44 under the state together with 32 plug-in mountings, is engaged to 40 and 42 li, two channel shaped spaces of mutually aliging at two connecting portions 30.The first connecting portion 30 remains on the second connecting portion 32 in this way, thereby has reached the confined state of the spray gun 10 shown in Fig. 1.
If act on a pressure in the direction of arrow representing with Reference numeral 46 in Fig. 4 B to stopping element 44, in the vertical direction so, ultimate range amax between the mutual opposed inner side of stopping element 44 has been strengthened, thereby stopping element 44 departs from and the engaging of the channel shaped space 40 of the first connecting portion 30, because amax is greater than da max, as representing in Fig. 5 A and 5B.If stopping element 44 departs from and the engaging of the channel shaped space 40 of the first connecting portion 30, the first connecting portion 30 can be from 32 lira of the second connecting portions out so, thus the disassembly status of the spray gun 10 shown in formation Fig. 2.
In order to apply this power in the direction at arrow 46 shown in Fig. 4 B, as illustrated in fig. 1 and 2, be provided with the manipulation device 48 of button form on the both sides of the shell 18 of electric unit 12.The distortion of the stopping element 44 shown in Fig. 5 B realizes thus in the time that two manipulation devices 48 are handled simultaneously.
Should be clear, be in the past describedly only used as example and in office where face does not all limit according to the form of implementation of device of the present invention.But can have modifications and variations, and do not depart from protection scope of the present invention, this protection domain is stipulated by claims.Compressed air generator especially needn't be integrated in 18 li, shell.It also can alternatively be designed to a unit separating with spray gun, wherein in this case compressed air is flowed to spray gun by compressed-air hose, and flexible pipe is connected on compressed air generator separately.

Claims (3)

1. spray gun (10), include the shell (18) that is provided with handgrip (20), comprise that in addition the injection unit (14) of nozzle (26) of spray gun (10) and jockey (16) are for the connecting portion (32) of connected with outer casing (18) and the connecting portion (30) of injection unit (14) removably, it is characterized in that, the connecting portion (32) of designed enclosures (18) and the connecting portion (30) of injection unit (14), they can mutually be inserted in enforcement straight line relative motion situation, and interconnect, jockey (16) has at least one latch member, it is designed, thereby it makes connecting portion (30, 32) the relative position of predetermining and orientation are fixed, described at least one latch member is to be engaged at least one space (40, 42) inner stopping element (44), stopping element (44) is designed to ring-type and can be out of shape in the time applying power, wherein stopping element (44) be not engaged to described at least one space (40 under deformation state, 42) inner, and distortion state next not with described at least one space (40, 42) engagement, two connecting portions (30, 32) be designed to annular, the Connection Element that can mutually insert, the inner periphery profile of one of them Connection Element (32) is at least in part corresponding to the outer circumferential profile of another Connection Element (30), be provided with guider, design it, thereby its connecting portion (32) to shell (18) and the connecting portion (30) of injection unit (14) lead during their relative motions, guider has at least one groove (34) and at least one projection (36), wherein said at least one projection (36) during relative motion inner being directed to of described at least one groove (34).
2. by spray gun claimed in claim 1 (10), it is characterized in that, be provided with at least one manipulation device (48) for handling latch member.
3. by the spray gun (10) described in claim 1 or 2, it is characterized in that, be provided with backstop (39), one of them connecting portion (30) gear in the time inserting motion end leans against in backstop, and it has stipulated the position fixing by latch member.
CN200980106245.XA 2008-02-25 2009-02-20 Spray gun Active CN101952043B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102008000399A DE102008000399B4 (en) 2008-02-25 2008-02-25 spray gun
DE102008000399.9 2008-02-25
PCT/EP2009/052050 WO2009106487A1 (en) 2008-02-25 2009-02-20 Spray gun

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Publication Number Publication Date
CN101952043A CN101952043A (en) 2011-01-19
CN101952043B true CN101952043B (en) 2014-05-14

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EP (1) EP2257383A1 (en)
CN (1) CN101952043B (en)
DE (1) DE102008000399B4 (en)
RU (1) RU2495727C2 (en)
WO (1) WO2009106487A1 (en)

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CN104203427B (en) * 2012-03-21 2017-08-15 胡斯华纳有限公司 Watering appliance with flow measurement device
CN108523216B (en) * 2018-04-19 2020-08-25 云南巴菰生物科技有限公司 Preparation method of polylactic acid tow filter stick for reducing smoke temperature and reducing suction resistance
RU2712570C1 (en) * 2019-04-09 2020-01-29 Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный технический университет" (ВолгГТУ) Spray system
CN211660579U (en) 2019-11-13 2020-10-13 创科无线普通合伙 Pressure cleaning machine

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CN2728636Y (en) * 2004-04-30 2005-09-28 宗茂企业有限公司 Fast disssembling and locating structure of electric spray gun

Also Published As

Publication number Publication date
WO2009106487A1 (en) 2009-09-03
RU2495727C2 (en) 2013-10-20
DE102008000399B4 (en) 2011-08-25
EP2257383A1 (en) 2010-12-08
DE102008000399A1 (en) 2009-09-03
RU2010139290A (en) 2012-04-10
CN101952043A (en) 2011-01-19

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