WO2015096727A1

WO2015096727A1 - Adjustable ratchet wrench

Info

Publication number: WO2015096727A1
Application number: PCT/CN2014/094772
Authority: WO
Inventors: 徐卫锋
Original assignee: 绍兴恒力工具有限公司
Priority date: 2013-12-26
Filing date: 2014-12-24
Publication date: 2015-07-02
Also published as: CN203680163U

Abstract

An adjustable ratchet wrench, comprising two mounting plates (1), an adjusting structure and ratchet group (3) for clamping; the adjusting structure comprises a positioning rotary dial (2) with inner bores, a locking button (4), and a mounting base (6); a spring (5) is disposed between the locking button (4) and the mounting base (6); the positioning rotary dial (2) is provided with stopping grooves (22) thereon for receiving the ratchet group (3), and is provided with positioning teeth (23) on the circumference of the positioning rotary dial (2); the positioning rotary dial (2) is further provided with a bolt channel (24) thereon; the locking button (4) is provided with sawteeth (33) engaging with the positioning teeth (23); a slide groove (61) for the button to move back and forth is disposed on the positioning base; the mounting plates are provided with accommodation holes (14), and ratchet guide grooves (13) are arranged on the circumference of the accommodation holes (14) for the ratchet group (3) to slide in and out; the ratchet group (3) comprises a ratchet base (31), a ratchet (32) and a reset spring for resetting the ratchet disposed on the ratchet base (31), and a mounting shaft (311) extending out is provided on the two ends of the ratchet base (31). The adjustable ratchet wrench is suitable for different types of bolts, has a simple structure, and is easy to operate.

Description

Adjustable ratchet wrench

Technical field

The utility model belongs to the technical field of hardware tools, in particular to an adjustable ratchet wrench.

Background technique

The existing ratchet wrenches are single-type bolts, and some are ratchet wrenches of replaceable joints, and the structure thereof is complicated. The application publication number is CN 102205526 A, which discloses a ratchet wrench including: a ratchet structure having a main body; a ratchet body within the body of the ratchet structure and rotatable relative to the ratchet structure about a first axis; a sleeve wheel pivotally coupled to the ratchet body for rotation about a second axis, the second axis being vertical In the first shaft, the sleeve wheel includes a plurality of tool members circumferentially spaced from each other about the second shaft; a one-way clutch coupling the ratchet body and the ratchet structure The main body. The two ends are provided with wrench joints suitable for several nut types, but after all, the models are limited, and the structure is complicated, the operation is inconvenient, and the joints are often required, which takes a lot of time and leads to a decrease in work efficiency.

Utility model content

In order to overcome the above technical defects, the utility model provides an adjustable ratchet wrench which can adapt to bolts of different specifications and is convenient to operate.

In order to solve the above problems, the utility model is implemented according to the following technical solutions:

The adjustable ratchet wrench of the present invention comprises two upper and lower mounting plates, an adjusting structure disposed between the two mounting plates, and a plurality of ratchet sets for clamping bolts and nuts; the mounting plate has a hand-held portion at one end, and another One end is an action portion, the adjustment structure and a ratchet set are disposed at the action portion; the ratchet set is disposed on the adjustment structure, the adjustment structure includes a positioning turntable for adjusting a distance between the ratchet sets and a locking for locking the ratchet set structure.

Further, for more convenient operation, the locking structure includes a locking button that cooperates with the positioning dial and a mounting seat for defining a position of the locking button, and a spring is disposed between the locking button and the mounting seat; The positioning dial is provided with a limiting slot for placing the ratchet set, the limiting slot is connected with the inner hole of the positioning dial; the positioning dial is provided with positioning teeth on the circumference; the positioning dial is further provided with a bolt chute The bolt chute is an arc that is concentric with the intermediate hole; the end surface of the locking button that is in contact with the positioning dial is provided with a serration that engages with the positioning tooth; and the positioning seat is provided with a sliding for moving the button back and forth groove.

Further, the action portion is provided with a through hole for placing a bolt and a nut, and the through hole is circumferentially provided with a ratchet group guiding groove for sliding the inner and outer sides of the ratchet group, the ratchet group guiding groove is arc-shaped, the mounting plate There are also several installations on the screen. a hole, the mounting plate is provided with a through groove for outwardly extending the locking button.

Further, the ratchet set includes a ratchet seat, a ratchet disposed on the ratchet seat, and a return spring for ratcheting, the ratchet extending outward from the ratchet seat, the ratchet passing through the shaft and the ratchet seat on both end faces Connected, both ends of the ratchet seat are provided with an outwardly extending mounting shaft.

Further, in order to make the clamping more reliable, the end face of the ratchet seat is arc-shaped, and the surface thereof is provided with serrations.

Further, in order to prevent slippage between the positioning dial and the locking button, a positioning angle of the positioning teeth on the circumference of the positioning dial is 85 to 90 degrees, preferably 88 degrees.

Further, for ease of installation, the reset is reliable, and the return spring in the ratchet set is a torsion spring.

Further, in order to fix the spring, the locking button is provided with a fixed shaft for fixing the spring.

Further, in order to make the force uniform, the ratchet sets are three groups, which are evenly distributed on the circumference of the inner hole of the positioning turntable, and may also be two groups, four groups or six sets of ratchet sets.

Further, in order to reduce the fatigue during work, the handle of the mounting plate is provided with a handle for convenient grip.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model adopts the positioning positioning of the positioning teeth, and the diagonal guide groove fixes the diameter between the ratchet groups, thereby adapting to the bolts of different types, the operation is convenient, the structure is simple, and the work efficiency is high.

DRAWINGS

The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

Figure 1 is a schematic view of the assembly of the present invention;

Figure 2 is a schematic view of the structure of the present invention.

In the picture: 1-mounting plate, 11-handle, 12-way slot, 13-ratchet set guide slot, 14-placement hole, 15-mounting hole, 2-positioning turntable, 21-inner hole, 22-limit slot ,23-positioning tooth,24-bolt chute,3-ratchet set,31-ratchet seat,311-mounting shaft,32-ratchet,321-ratchet fixed shaft,33-sawtooth,4-locking button,41-hand Press, 42-spring positioning shaft, 43-locking serration, 5-spring, 6-mount, 61-button sliding slot, 7-handle, 71-handle body, 72-first side wall, 73-second Side wall, 8-bolt.

detailed description

The preferred embodiments of the present invention are described with reference to the accompanying drawings, and the preferred embodiments described herein are intended to illustrate and explain the invention.

As shown in FIG. 1 to FIG. 2, the adjustable ratchet wrench of the present invention comprises two mounting plates, an adjusting structure disposed between the two mounting plates 1, and three sets of ratchets for clamping bolts and nuts. Group 3, the ratchet group 3 can also be two groups, Four or six groups.

The adjustment structure comprises a positioning turntable 2 with an inner hole 21 and a locking structure, the locking structure comprising a locking button 4 cooperating with the positioning turntable 2 and a mounting seat 6 for defining the position of the locking button 4, A spring 5 is disposed between the locking button 4 and the mounting seat 6.

The positioning dial 2 is provided with a limiting slot 22 for defining the position of the ratchet set 3, the limiting slot 22 is in communication with the inner hole 21 of the positioning dial 2; the positioning dial 2 is provided with positioning teeth 23 on the circumference thereof. The bottom corner of the positioning tooth 23 is 85-90 degrees, preferably 88 degrees. When the positioning turntable 2 is mounted, the direction of the positioning tooth 23 corresponds to the direction of the ratchet teeth on the ratchet set 3; Further, a bolt chute 24 is provided on the shaft 2, and the bolt chute 24 has an arc shape concentric with the inner hole 21.

The end surface of the locking button 4 that is in contact with the positioning dial 2 is provided with locking serrations 43 that engage with the positioning teeth; the upper and lower surfaces of the locking button 4 are provided with an upwardly convex hand portion 41, and the other A positioning shaft 42 for fixing the spring 5 is disposed on the end surface; the positioning seat 6 is provided with a sliding groove 61 for moving the locking button 4 forward and backward, and the positioning seat 6 is provided with a mounting hole for fixing to the mounting plate.

One end of the mounting plate is a hand-held portion 11 and the other end is an action portion. The action portion is provided with a placement hole 14 for placing a bolt and nut. The placement hole 14 is circumferentially provided with a ratchet set for guiding the inner and outer surfaces of the ratchet wheel group 3 to be guided. The groove 13, the ratchet group guiding groove 13 is arc-shaped, and the mounting plate 1 is further provided with a plurality of mounting holes 15 on which the hand-held portion 41 for the locking button 4 is disposed to extend outward. Through slot 12.

The ratchet set 3 includes a ratchet seat 31, a ratchet 32 disposed on the ratchet seat 31, and a return spring for ratchet reset, the return spring being a compression spring. The ratchet 32 projects outwardly from the ratchet base 31. The ratchet 32 is coupled to the ratchet mount 31 via a fixed shaft 321 which is rotatable about a fixed shaft 321 which is strip-shaped with one end a ratchet, an end of the ratchet with a ratchet extending outwardly under the action of the compression spring, and the ratchet 32 is fixed to the outwardly extending distance due to the other end of the ratchet 32 hitting the wall of the ratchet seat 31, the ratchet seat Both ends of the 31 are provided with an outwardly extending mounting shaft 311.

The two positioning plates 1 are fixed by bolts 8, and the bolts 8 pass through the bolt chutes 24 of the positioning turntable 2 to fix the positioning turntable 2.

The handle portion 11 of the mounting plate 1 is provided with a handle 7 for convenient grip. The handle 7 is made of soft plastic. The handle 7 includes a handle body 71 and a first side wall 72 disposed on both sides of the handle body 71. And the second side wall 73, the handle 7 can be provided with a trademark or other decorative pattern to enhance the appearance.

The working principle of the adjustable ratchet wrench of the utility model is:

The bolt to be operated is placed in the placing hole 14 of the wrench, and the locking button 4 is pushed backward by hand, and the engagement of the serration 43 of the locking button 4 with the positioning tooth 23 of the positioning dial 2 is released, so that the positioning dial 2 can be freely Rotate, rotate the positioning turntable 2, adjust the distance between the ratchet sets 3, make the ratchet set 3 clamp the bolt head, and then release the lock button 4, under the action of the spring 5, The locking button 4 is engaged with the positioning turntable 2 to fix it, that is, the adjustment and fixing of the wrench is completed, and the placing handle 7 can drive the bolt placed in the placing hole 14 to rotate, because the ratchet is under the action of the compression spring The outer protrusion stretches the bolt, and the handle 7 is reversely rotated, and the ratchet is pressed inward to realize the reverse rotation, and the ratchet can be quickly reset under the action of the compression spring to realize the locking function.

Other structures of the adjustable ratchet wrench of this embodiment are described in the prior art.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Therefore, without departing from the technical solution of the present invention, the above embodiments are made according to the technical essence of the present invention. Any modification, equivalent change and modification are still within the scope of the technical solution of the present invention.

Claims

An adjustable ratchet wrench, comprising: two upper and lower mounting plates, an adjusting structure disposed between the two mounting plates, and a plurality of ratchet sets for clamping bolts and nuts; the mounting plate has a hand-held portion at one end, The other end is an action portion, the adjustment structure and the ratchet set are disposed at the action portion; the ratchet set is disposed on the adjustment structure, the adjustment structure includes a positioning turntable for adjusting the distance between the ratchet sets and a lock for locking the ratchet set Tight structure.
The adjustable ratchet wrench according to claim 1, wherein the locking structure comprises a locking button that cooperates with the positioning dial and a mounting seat for defining a position of the locking button, the locking button and the mounting seat a positioning slot is disposed on the positioning turntable; the limiting slot is disposed with the inner hole of the positioning dial; the positioning dial is disposed on the circumference of the positioning dial; the positioning dial a bolt chute is further disposed, the bolt chute is an arc that is concentric with the middle hole; the end surface of the locking button that is in contact with the positioning dial is provided with a serration that engages with the positioning tooth; There are sliding slots for the buttons to move back and forth.
The adjustable ratchet wrench according to claim 2, wherein the action portion is provided with a through hole for placing a bolt and a nut, and the through hole is circumferentially provided with a ratchet group guiding groove for sliding the inner and outer sides of the ratchet group, The ratchet set guiding groove has an arc shape, and the mounting plate is further provided with a plurality of mounting holes, and the mounting plate is provided with a through groove for outwardly extending the locking button.
The adjustable ratchet wrench of claim 1 wherein said ratchet set includes a ratchet seat, a ratchet disposed on the ratchet seat, and a return spring for ratcheting, said ratchet extending outwardly from the ratchet seat, The ratchet is coupled to the ratchet seat through a shaft on both end faces, and both ends of the ratchet seat are provided with an outwardly extending mounting shaft.
The adjustable ratchet wrench according to claim 4, wherein the end surface of the ratchet seat is arc-shaped, and the surface thereof is provided with serrations.
The adjustable ratchet wrench according to claim 2, wherein a positioning angle of the positioning teeth on the circumference of the positioning dial is 85 to 90 degrees.
The adjustable ratchet wrench according to claim 4, wherein the return spring in the ratchet set is a torsion spring.
The adjustable ratchet wrench according to claim 1, wherein the locking button is provided with a fixed shaft for spring positioning.
The adjustable ratchet wrench according to claim 1, wherein the ratchet set is three sets, which are evenly distributed on the circumference of the inner hole of the positioning turntable.
The adjustable ratchet wrench according to any one of claims 1 to 9, characterized in that the handle of the mounting plate is provided with a handle for convenient gripping.