CN105371023A - Dual-seal anti-disengaging type connecting device - Google Patents
Dual-seal anti-disengaging type connecting device Download PDFInfo
- Publication number
- CN105371023A CN105371023A CN201510946112.0A CN201510946112A CN105371023A CN 105371023 A CN105371023 A CN 105371023A CN 201510946112 A CN201510946112 A CN 201510946112A CN 105371023 A CN105371023 A CN 105371023A
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- CN
- China
- Prior art keywords
- steel pipe
- joint
- sealing
- double
- gland nut
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/025—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
- F16L19/0218—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means comprising only sealing rings
Abstract
A dual-seal anti-disengaging type connecting device comprises a hollow connector, a sealing ring, a steel pipe, a sealing cushion and a pressing nut. One end of the steel pipe is axially inserted into an inner hole of the connector and connected with the sealing ring arranged in the inner hole of the connector in a sealed mode through a flange fixedly connected to the steel pipe; the pressing nut axially penetrates the steel pipe and is connected with the connector; the sealing cushion is arranged among the pressing nut, the connector, the flange and the steel pipe; the sealing cushion can transmit axial force exerted for screwing down the pressing nut to the flange so that the axial force can be transmitted to the steel pipe, the steel pipe and the connector can be both sealed and the steel pipe can be prevented from rotating; the dual-seal structure that the flange is connected to the steel pipe is used for solving the rusting problem of a welded joint, the overall structure is scientific and reasonable, installation and operation are convenient, maintenance and replacement are easy, connection is firm and reliable, the sealing effect is good, and use and popularization are easy. The dual-seal anti-disengaging type connecting device is widely used for connection of various hydraulic pipelines and is particularly suitable for connection and ancillary use of air energy water heater flow guiding pipes.
Description
Technical field
The present invention relates to a kind of Double-sealing anti-drop formula connection set.
Background technique
Along with the raising of people's living standard, water heater comes into huge numbers of families; Existing water heater can be divided into electric water heater, gas water-heater, solar water heater, air-source water heater and fast magnetic domestic hot-water device five kinds; The development of science and technology promotes air-source water heater and enters the new stage, because the advantages such as lower, the use safety of air-source water heater power consumption, free from environmental pollution and long service life make it become a current new industry.
As shown in Figure 3, the steel pipe in the water tank of water heater is fixedly connected with employing welding manner with between the joint axially running through water tank wall; Because the water tank of air-source water heater needs the pressure born to be 0.7MPA, and the water in water tank constantly circulates and produces cycle pulse pressure, require that pressurized container must can bear the cycle pulse pressure of more than 100,000 times according to national regulations, the hot water honeycomb duct therefore in the joint of air-source water heater and water tank generally adopts the mode of welding to link together; But due to hot water honeycomb duct welding position directly and hot water contacts, after using a period of time, weld seam there will be corrosion and causes and leak, and causes reduce the working life of air-source water heater; And joint and hot water honeycomb duct adopt and be welded to connect, cause the maintenance to water heater and replacing difficulty.
Earlier application utility model patent 201320132648.5 discloses a kind of sealed type ferrule joint, it solve the technical problem be tightly connected existed in related domain, but do not relate to steel pipe and deviate from the problem with anti-rotation, and processing and assembly technology relative complex, cause manufacture cost relatively to promote.
Summary of the invention
For above-mentioned situation, the object of the invention is to provide a kind of Double-sealing anti-drop formula connection set, and its utilization double sealing structure of adpting flange disc type on steel pipe overcomes the problem that weld seam gets rusty; And overall structure is scientific and reasonable, to install and easy to operate, safeguard and change simply, firm and reliable connection, good sealing effect, is easy to promote the popularization use.
For realizing above-mentioned task, a kind of Double-sealing anti-drop formula connection set, it comprises the joint of hollow, seal ring, steel pipe, sealing gasket and gland nut, the endoporus of described joint is provided with step for placing seal ring, one end of described steel pipe axially inserts the endoporus of joint and the seal ring that the flange plate be fixedly connected with on steel pipe and coupler bore are arranged is tightly connected, described gland nut is connected with joint axially across steel pipe, described sealing gasket is located at gland nut, joint, between steel pipe and flange plate, sealing pad is pressed in nut in the axial direction, between joint and flange plate, sealing gasket at radial compaction between nut and steel pipe, the axial force transmission that sealing pad can apply tightening gland nut is to flange plate and then pass to steel pipe thus realize double-sealing to steel pipe and joint and be connected and can prevent the rotation of steel pipe.
For realizing structure of the present invention, effect optimization, its further step: one end of described sealing gasket is provided with the annular boss of hollow, during installation, this annular boss axially inserts in the circumference radial clearance of steel pipe and joint.
The outer round surface that described coupler bore is provided with step one end is provided with outside thread and gland nut is equipped with.
The sectional shape of described flange plate is circular and is welded on the outer round surface of steel pipe, and the end face distance size of described flange plate and steel pipe is more than or equal to the diameter dimension of seal ring.
One end of described gland nut is provided with the annular chassis of hollow for applying axial force to sealing gasket, described annular chassis and gland nut is one-body molded processes.
Described joint, steel pipe and gland nut all adopt stainless steel material to make.
Described seal ring and sealing gasket all adopt EPDM rubber material to make.
One end that described coupler bore is provided with step is arranged in the water tank of water heater, and the other end is protruding axially across water tank wall.
The dimension of inner screw thread of described gland nut is G1/2 made in Great Britain.
The invention provides a kind of Double-sealing anti-drop formula connection set, it comprises the joint containing stepped ramp type endoporus, is arranged on the seal ring in water tank, steel pipe, sealing gasket and nut, described joint shaft to one end be arranged in water tank, the other end is arranged on outside water tank, and the step of described endoporus is arranged in water tank, described seal ring is arranged on the step place of described endoporus, one end of described steel pipe axially inserts the endoporus of joint and the seal ring that the flange plate be fixedly connected with on steel pipe and coupler bore are arranged is tightly connected, described nut is connected with joint axially across steel pipe, the internal thread of nut mates with the outside thread of joint, described sealing gasket is located at nut, joint, between flange plate and steel pipe, sealing gasket is pressed between nut and joint and flange plate in the axial direction, sealing gasket at radial compaction between nut and steel pipe, the axial force transmission that fastening nut can apply by sealing pad is to flange plate and then pass to steel pipe thus realize double-sealing to steel pipe and joint and be connected and can prevent the technological scheme of the rotation of steel pipe, it utilizes the double sealing structure of adpting flange disc type on steel pipe to overcome the problem that weld seam gets rusty, and overall structure is scientific and reasonable, installs and easy to operate, and safeguard and change simply, firm and reliable connection, good sealing effect, is easy to promote the popularization use.
The beneficial effect that the present invention is produced compared to existing technology:
I, the present invention adopts welding flange on the outer round surface of steel pipe, the effect that energy effective guarantee is tightly connected, and can effectively prevent steel pipe from deviating from from joint, ensures firm and reliable connection;
II, the present invention adopts and arranges seal ring and sealing gasket respectively in the axial both sides of the flange plate of steel pipe, realize double-sealing waterproof construction, sealed waterproof effect is good, and isolate hot water to contact with the direct of weld seam, can effectively prevent weld seam from getting rusty, improve the working life of equipment, service life of the products can reach more than 15 years;
III, the present invention adopts and arranges seal ring and sealing gasket respectively in the flange plate both sides of steel pipe, can effective buffered water cycle pulse pressure, the stability of further guarantee linkage structure and sealing, pulse test can reach more than 100,000 times, extends the working life of equipment;
IV, seal ring of the present invention and sealing gasket all adopt EPDM rubber material, can can Long-Time Service at 120 DEG C, and there is excellent acid-alkali-corrosive-resisting, resistance to superheated water performance, normal temperature mobility and good springiness, the experiment of water circulation pulsating pressure can reach more than 100,000 times, and Long-Time Service can not be out of shape with aging;
V, the present invention adopts the sealing gasket arranging band annular boss in the circumference radial clearance of steel pipe and joint, increase the friction factor between steel pipe and joint, effectively can prevent steel pipe from producing rotation because bearing water circulation pulsating pressure, and further increase the effect be tightly connected;
VI, the present invention adopts the double sealing structure of adpting flange disc type on steel pipe to overcome the problem that weld seam gets rusty, and overall structure is scientific and reasonable, installs and easy to operate, safeguard and change simple, firm and reliable connection, good sealing effect, wide market, is convenient to promote the use of.
The connection that the present invention is widely used in various hydraulic tubing uses, and the connection being particularly suitable for air-source water heater honeycomb duct supports the use.
Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.
Fig. 1 is overall structure sectional view of the present invention.
Fig. 2 is the partial enlarged drawing of H position in Fig. 1.
Fig. 3 is the overall structure sectional view of prior art.
In figure: 1-joint, 11-step, 2-seal ring, 3-steel pipe, 31-flange plate, 4-sealing gasket, 41-annular boss, 5-gland nut, 51-annular chassis, 6-water tank wall, 7-weld seam, H-Local map marks.
Embodiment
With reference to accompanying drawing, the present invention is achieved in that a kind of Double-sealing anti-drop formula connection set, and it comprises the joint 1 of hollow, seal ring 2, steel pipe 3, sealing gasket 4 and gland nut 5, the endoporus of described joint 1 is provided with step 11 for placing seal ring 2, one end of described steel pipe 3 axially inserts the endoporus of joint 1 and the seal ring 2 that the flange plate 31 be fixedly connected with on steel pipe 3 and joint 1 endoporus are arranged is tightly connected, described gland nut 5 is connected with joint 1 axially across steel pipe 3, described sealing gasket 4 is located at gland nut 5, joint 1, between steel pipe 3 and flange plate 31 4, sealing pad 4 is pressed in nut 5 in the axial direction, between joint 1 and flange plate 31, sealing gasket 4 at radial compaction between nut 5 and steel pipe 3, sealing pad 4 axial force transmission that can will tighten gland nut 5 and apply is to flange plate 31 and then pass to steel pipe 3 thus realize double-sealing to steel pipe 3 and joint 1 and is connected the rotation that also can prevent steel pipe 3.
As shown in Figure 1, the outer round surface that the endoporus of joint 1 of the present invention is provided with step one end is provided with outside thread and gland nut 5 is equipped with, and described thread size is preferably G1/2 made in Great Britain; The sectional shape of described flange plate 31 is circular and is welded on the outer round surface of steel pipe 3 one end, and this flange plate 31 can effectively prevent steel pipe 3 from deviating from from joint 1 endoporus, ensures firm and reliable connection; Described flange plate 31 equals with the end face distance size of steel pipe 3 diameter dimension being greater than seal ring 2, the sealing effect of energy effective guarantee flange plate 31 and seal ring 2; One end of described gland nut 5 is provided with the annular chassis 51 of hollow for applying axial force to sealing gasket 4, this annular chassis 51 adopts one-body molded processing with gland nut 5, gland nut 5 is used to be connected and fixed steel pipe 3 and joint 1, be convenient to free adjusting sealing effect and seal degree, mount and dismount more convenient simultaneously; Described joint 1, steel pipe 3 and gland nut 5 all adopt stainless steel material to make, and preferably adopting 304 stainless steel materials, effectively preventing the working life of reducing equipment because getting rusty.
As shown in Figure 2, one end of sealing gasket 4 of the present invention is provided with the annular boss 41 of hollow, and during installation, this annular boss 41 axially inserts in the circumference radial clearance of steel pipe 3 and joint 1, can effectively prevent steel 3 pipe from can not rotate because bearing water circulation pulsating pressure; Described seal ring 2 and sealing gasket 4 all adopt EPDM rubber material to make, described EPDM rubber material is ethylene propylene diene rubber, can can Long-Time Service at 120 DEG C, there is excellent acid-alkali-corrosive-resisting, resistance to superheated water performance, has excellent electrical insulation capability and corona resistance, normal temperature mobility and good springiness, this EPDM rubber material can effective buffered water cycle pulse pressure, and pulse test can reach and can not be out of shape for more than 100,000 times with aging; One end that described joint 1 endoporus is provided with step 11 is arranged in the water tank of water heater, and the other end is protruding axially across water tank wall 6; The steel pipe 3 be connected with joint 1, seal ring 2, sealing gasket 4 and gland nut 5 are all arranged in the water tank of water heater.
By reference to the accompanying drawings, assemble flow of the present invention is: first that one end of joint 1 is protruding and adopt nut and water tank wall 6 to be tightly connected axially across the through hole on the water tank wall 6 of water heater, then seal ring 2 is placed on joint 1 and is located on the step 11 of the axial bore of one end in water tank; Be welded on by flange plate 31 subsequently on the outer round surface of steel pipe 3 one end, need ensure that flange plate 31 is parallel with the end face of steel pipe 3 and isolate certain distance, described distance equals the diameter dimension being greater than seal ring 2, and after welding, cooling is removed slag; Then the welding ends of steel pipe 3 is axially inserted in the endoporus of joint 1, flange plate 31 need be made to be close to seal ring 2; And then sealing gasket 4 is installed makes annular boss 41 insert in the circumference radial clearance of steel pipe 3 and joint 1, finally gland nut 5 to be connected with joint 1 axially across steel pipe 3 and to tighten; Described joint 1 one end be positioned at outside water tank connects the metallic hose of shower nozzle again, and the hot water in air energy water heater water tank is derived through steel pipe 3 and joint 1.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations; Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a Double-sealing anti-drop formula connection set, is characterized in that comprising the joint (1) of hollow, seal ring (2), steel pipe (3), sealing gasket (4) and gland nut (5); the endoporus of described joint (1) is provided with step (11) for placing seal ring (2), one end of described steel pipe (3) axially inserts the endoporus of joint (1) and the seal ring (2) that the flange plate (31) be fixedly connected with on steel pipe (3) and joint (1) endoporus are arranged is tightly connected, described gland nut (5) is connected with joint (1) axially across steel pipe (3), described sealing gasket (4) is located at gland nut (5), joint (1), between steel pipe (3) and flange plate (31) four, sealing pad (4) is pressed in nut (5) in the axial direction, between joint (1) and flange plate (31), sealing gasket (4) at radial compaction between nut (5) and steel pipe (3), sealing pad (4) axial force transmission that can will tighten gland nut (5) and apply is to flange plate (31) and then pass to steel pipe (3) thus realize double-sealing to steel pipe (3) and joint (1) and be connected the rotation that also can prevent steel pipe (3).
2. a kind of Double-sealing anti-drop formula connection set according to claim 1, it is characterized in that one end of described sealing gasket (4) is provided with the annular boss (41) of hollow, during installation, this annular boss (41) axially inserts in the circumference radial clearance of steel pipe (3) and joint (1).
3. a kind of Double-sealing anti-drop formula connection set according to claim 1, is characterized in that outer round surface that described joint (1) endoporus is provided with step (11) one end is provided with outside thread and gland nut (5) is equipped with.
4. a kind of Double-sealing anti-drop formula connection set according to claim 1, the sectional shape that it is characterized in that described flange plate (31) is circular and is welded on the outer round surface of steel pipe (3), and described flange plate (31) is more than or equal to the diameter dimension of seal ring (2) with the end face distance size of steel pipe (3).
5. a kind of Double-sealing anti-drop formula connection set according to claim 1, it is characterized in that one end of described gland nut (5) is provided with the annular chassis (51) of hollow for applying axial force to sealing gasket (4), described annular chassis (51) processes with gland nut (5) is one-body molded.
6., according to a kind of Double-sealing anti-drop formula connection set in claim 1-5 described in any one, it is characterized in that described joint (1), steel pipe (3) and gland nut (5) all adopt stainless steel material to make.
7., according to a kind of Double-sealing anti-drop formula connection set in claim 1-5 described in any one, it is characterized in that described seal ring (2) and sealing gasket (4) all adopt EPDM rubber material to make.
8. a kind of Double-sealing anti-drop formula connection set according to claim 1, it is characterized in that one end that described joint (1) endoporus is provided with step (11) is arranged in the water tank of water heater, the other end is protruding axially across water tank wall (6).
9. a kind of Double-sealing anti-drop formula connection set according to claim 1, is characterized in that the dimension of inner screw thread of described gland nut (5) is G1/2 made in Great Britain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510946112.0A CN105371023A (en) | 2015-12-16 | 2015-12-16 | Dual-seal anti-disengaging type connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510946112.0A CN105371023A (en) | 2015-12-16 | 2015-12-16 | Dual-seal anti-disengaging type connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105371023A true CN105371023A (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510946112.0A Pending CN105371023A (en) | 2015-12-16 | 2015-12-16 | Dual-seal anti-disengaging type connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105371023A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504305A (en) * | 2017-08-21 | 2017-12-22 | 朱德清 | A kind of snap joint for gas pipe leading in user room road |
| CN111566327A (en) * | 2017-12-05 | 2020-08-21 | 大陆汽车有限公司 | Wastegate assembly for an exhaust gas turbocharger |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5441312A (en) * | 1993-10-01 | 1995-08-15 | Hitachi Metals, Ltd. | Pipe joint for connection of corrugated tube |
| CN2373661Y (en) * | 1998-05-18 | 2000-04-12 | 赵立斌 | Easy connecting pipe joint device |
| CN2428666Y (en) * | 2000-07-09 | 2001-05-02 | 新昌县制冷部件厂 | Connector for split air-conditioner for room |
| CN201218371Y (en) * | 2008-05-13 | 2009-04-08 | 王俊忠 | Seal fitting assembly for automobile chassis |
| CN205383366U (en) * | 2015-12-16 | 2016-07-13 | 湖南埃瓦新能源科技有限公司 | Double containment anticreep formula connecting device |
-
2015
- 2015-12-16 CN CN201510946112.0A patent/CN105371023A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5441312A (en) * | 1993-10-01 | 1995-08-15 | Hitachi Metals, Ltd. | Pipe joint for connection of corrugated tube |
| CN2373661Y (en) * | 1998-05-18 | 2000-04-12 | 赵立斌 | Easy connecting pipe joint device |
| CN2428666Y (en) * | 2000-07-09 | 2001-05-02 | 新昌县制冷部件厂 | Connector for split air-conditioner for room |
| CN201218371Y (en) * | 2008-05-13 | 2009-04-08 | 王俊忠 | Seal fitting assembly for automobile chassis |
| CN205383366U (en) * | 2015-12-16 | 2016-07-13 | 湖南埃瓦新能源科技有限公司 | Double containment anticreep formula connecting device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504305A (en) * | 2017-08-21 | 2017-12-22 | 朱德清 | A kind of snap joint for gas pipe leading in user room road |
| CN111566327A (en) * | 2017-12-05 | 2020-08-21 | 大陆汽车有限公司 | Wastegate assembly for an exhaust gas turbocharger |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20160302 |