CN210879410U

CN210879410U - Easy-to-assemble ratchet wrench

Info

Publication number: CN210879410U
Application number: CN201921116212.0U
Authority: CN
Inventors: 章志铭
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-06-30
Anticipated expiration: 2029-07-16

Abstract

An easy-to-assemble ratchet wrench comprises a wrench body and two fasteners, wherein one end of the wrench body is provided with a through hole penetrating through the top surface and the bottom surface, a ratchet is arranged in the through hole, the ratchet sequentially comprises an upper ratchet part, an upper ring groove, a middle ratchet part, a lower ring groove and a lower ratchet part from top to bottom, the upper ratchet part and the lower ratchet part protrude out of the through hole, the middle ratchet part is positioned in the through hole, the upper ring groove and the lower ring groove are positioned outside the through hole, and the two fasteners are respectively buckled in the upper ring groove and the lower ring groove of the ratchet and used for keeping the ratchet in the through hole. Therefore, the ratchet wrench of the present invention does not require excessive machining of the wrench body to improve the convenience of machining, and allows the components to be more conveniently and stably installed, thereby facilitating the actuation of the ratchet.

Description

Easy-to-assemble ratchet wrench

Technical Field

The utility model relates to a ratchet spanner especially relates to an easily assembled ratchet spanner.

Background

In the structure of the conventional ratchet wrench, as shown in fig. 1, one end of the wrench body 1 has a receiving groove 3 for receiving the ratchet 2, the wrench body 1 is provided with a ring rail 5 for receiving a retaining ring 4 and a ring groove 7 for receiving a cover ring 6 at a position corresponding to the top end of the receiving groove 3, the ratchet 2 is retained in the receiving groove 3 by the retaining ring 4 and the cover ring 6, and the wrench body 1 is provided with a radial flange 8 at a position corresponding to the bottom end of the receiving groove 3 to provide a stopping effect for the ratchet 2 by the radial flange 8, so as to prevent the ratchet 2 from falling out of the receiving groove 3.

However, it takes a lot of time and labor to machine the ring rail 5, the ring groove 7, and the radial flange 8 into the wrench body 1, and the machining error easily affects the subsequent assembly accuracy, which results in the unsmooth operation of the ratchet 2.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a ratchet wrench, which is easy to assemble and can improve the convenience of machining.

In order to achieve the above objective, the ratchet wrench of the present invention comprises a wrench body, a ratchet block, and two fasteners. One end of the wrench body is provided with a through hole penetrating through the top surface and the bottom surface and a containing chamber radially communicated with the through hole; the ratchet wheel is rotatably arranged in the through hole of the wrench body and is provided with an upper ratchet part, a middle ratchet part, a lower ratchet part, an upper ring groove and a lower ring groove, the upper ratchet part and the lower ratchet part are both protruded out of the through hole, the middle ratchet part is positioned in the through hole, the upper ring groove is positioned outside the through hole and between the upper ratchet part and the middle ratchet part, and the lower ring groove is positioned outside the through hole and between the middle ratchet part and the lower ratchet part; the ratchet block is arranged in the accommodating chamber of the wrench body and is elastically engaged with the middle ratchet part of the ratchet wheel so as to limit the rotation direction of the ratchet wheel; one of the two fasteners is arranged in the upper ring groove of the ratchet wheel, and the other one of the two fasteners is arranged in the lower ring groove of the ratchet wheel, so that the ratchet wheel is kept in the through hole through the two fasteners.

Therefore, the utility model discloses a ratchet spanner processes out this upper ring groove and this lower ring groove to this ratchet to the location effect of this two fasteners of collocation need not do too much processing to this spanner body, in order to promote the convenience of processing, and let between each component convenient firm more when installing, and then be favorable to actuating of this ratchet.

Preferably, the axial height of the middle ratchet part of the ratchet wheel is greater than the axial height of the upper ratchet part of the ratchet wheel and greater than the axial height of the lower ratchet part of the ratchet wheel; in addition, the axial height of the upper ratchet-toothed part of the ratchet wheel is equal to the axial height of the lower ratchet-toothed part of the ratchet wheel.

Preferably, each of the fasteners is C-shaped, and the cross-sectional shape of each of the fasteners may be rectangular or circular.

The detailed construction, features, assembly or use of the ratchet wrench as provided by the present invention will be described in the following detailed description of the embodiments. However, it should be understood by those skilled in the art that the detailed description and specific examples, while indicating the specific embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

Drawings

FIG. 1 is an exploded perspective view of a prior art ratchet wrench;

fig. 2 is a perspective view of a ratchet wrench according to embodiment 1 of the present invention;

fig. 3 is an exploded perspective view of a ratchet wrench according to embodiment 1 of the present invention;

fig. 4 is a partial sectional view of a ratchet wrench according to embodiment 1 of the present invention;

fig. 5 is an exploded perspective view of the ratchet wrench according to embodiment 2 of the present invention;

fig. 6 is an exploded perspective view of a ratchet wrench according to embodiment 3 of the present invention.

[ description of reference ]

1 wrench body 2 ratchet wheel

3 holding groove 4 retaining ring

5 ring rail 6 closing cap ring

7 ring groove 8 radial flange

10 ratchet wrench 20 wrench body

22 through hole 24 chamber

26 side hole 30 ratchet

31 upper ratchet part 32 middle ratchet part

33 lower ratchet parts H1, H2 and H3 are axially high

34 upper ring groove 35 lower ring groove

40 ratchet piece 41 socket

42 groove 43 spring

44 shifting block 45 rod body

46 ball 47 spring

50 fastener

Detailed Description

Applicants first describe herein, throughout this specification, including the examples and claims that follow, directional terminology will be used with reference to the orientation of the figures. Next, in the embodiments and the drawings to be described below, the same element numbers denote the same or similar elements or structural features thereof.

Referring to fig. 2 and 3, the ratchet wrench 10 of the present invention includes a wrench body 20, a ratchet 30, a ratchet block 40 and two fasteners 50.

One end of the wrench body 20 has a through hole 22 penetrating through the top and bottom surfaces and a chamber 24 radially communicating with the through hole 22.

The ratchet 30 has an upper ratchet portion 31, a middle ratchet portion 32 and a lower ratchet portion 33 from top to bottom in sequence, as shown in fig. 3 and 4, an axial height H1 of the upper ratchet portion 31 is equal to an axial height H3 of the lower ratchet portion 33, and an axial height H2 of the middle ratchet portion 32 is greater than an axial height H1 of the upper ratchet portion 31 and an axial height H3 of the lower ratchet portion 33. In addition, the ratchet 30 further has an upper ring groove 34 and a lower ring groove 35, the upper ring groove 34 is located between the upper ratchet portion 31 and the middle ratchet portion 32, and the lower ring groove 35 is located between the middle ratchet portion 32 and the lower ratchet portion 33. As shown in FIGS. 3 and 4, when the ratchet 30 is assembled to the wrench body 20, the upper ratchet portion 31 and the lower ratchet portion 33 of the ratchet 30 are both protruded out of the through hole 22, the middle ratchet portion 32 of the ratchet 30 is located in the through hole 22, and the upper ring groove 34 and the lower ring groove 35 of the ratchet 30 are both located outside the through hole 22.

The ratchet block 40 is disposed in the chamber 24 of the wrench body 20 and elastically engages with the middle ratchet portion 32 of the ratchet 30 to limit the rotation direction of the ratchet 30. It should be noted that the ratchet block 40 can be configured with different components to allow the ratchet 30 to rotate in one direction or in two directions, as shown in fig. 3, the ratchet block 40 is configured with a spring 43, the spring 43 is disposed in a side hole 26 communicating with the accommodating chamber 24 and one end of the spring is abutted against the ratchet block 40, so that the ratchet block 40 can only allow the ratchet 30 to rotate in one direction; as shown in fig. 5, the ratchet block 40 can also be used with a shifting block 44, a ball 46 and a spring 47, the top surface of the ratchet block 40 has a hole 41 for inserting a rod 45 of the shifting block 44, so that the ratchet block 40 is driven by the shifting block 44 to deflect left and right relative to the ratchet wheel 30, in addition, the back surface of the ratchet block 40 has two grooves 42, the ball 46 is pressed against one of the grooves 42 under the action of the spring 47 to provide a positioning effect for the ratchet block 40, so that the ratchet block 40 allows the ratchet wheel 30 to rotate bidirectionally. Since how the ratchet block 40 is matched with the aforementioned components is the key point of the prior art and is not essential in the present application, the detailed description of the partial structure and operation thereof will be omitted for the sake of brevity.

Each fastener 50 is C-shaped and the cross-sectional shape of each fastener 50 may be rectangular (as shown in fig. 3) or circular (as shown in fig. 6). One of the fasteners 50 is fastened in the upper ring groove 34 of the ratchet 30, and the other fastener 50 is fastened in the lower ring groove 35 of the ratchet 30, so that the ratchet 30 is retained in the through hole 22 of the wrench body 20.

Therefore, the ratchet wrench 10 of the present invention processes the ratchet 30 to form the upper ring groove 34 and the lower ring groove 35, and the upper and lower fasteners 50 are matched to keep the ratchet 30 in the through hole 22, so that the wrench body 20 does not need to be processed too much, thereby improving the convenience of processing, and making the components more convenient and stable when being installed, thereby facilitating the actuation of the ratchet 30.

Claims

1. A ratchet wrench, comprising:

a wrench body, one end of which is provided with a through hole penetrating through the top and the bottom surfaces and a containing chamber radially communicated with the through hole;

a ratchet wheel, which is rotatably arranged in the through hole of the wrench body and is provided with an upper ratchet part, a middle ratchet part, a lower ratchet part, an upper ring groove and a lower ring groove, wherein the upper ratchet part and the lower ratchet part are both protruded out of the through hole, the middle ratchet part is positioned in the through hole, the upper ring groove is positioned outside the through hole and between the upper ratchet part and the middle ratchet part, and the lower ring groove is positioned outside the through hole and between the middle ratchet part and the lower ratchet part; and

the ratchet block is arranged in the accommodating chamber of the wrench body and is elastically meshed with the middle ratchet part of the ratchet; and

one of the two fasteners is arranged in the upper ring groove of the ratchet wheel, and the other fastener is arranged in the lower ring groove of the ratchet wheel.

2. The ratchet wrench of claim 1, wherein: the axial height of the middle ratchet-toothed part of the ratchet wheel is larger than that of the upper ratchet-toothed part of the ratchet wheel and larger than that of the lower ratchet-toothed part of the ratchet wheel.

3. The ratchet wrench of claim 2, wherein: the axial height of the upper ratchet-toothed part of the ratchet wheel is equal to the axial height of the lower ratchet-toothed part of the ratchet wheel.

4. The ratchet wrench of any one of claims 1-3, wherein: each fastener is C-shaped, and the cross section of each fastener is rectangular.

5. The ratchet wrench of any one of claims 1-3, wherein: each fastener is C-shaped, and the cross section of each fastener is circular.