TWM572287U - Two-way ratchet wrench structure - Google Patents

Abstract

The present invention relates to a two-way ratchet wrench including a wrench body having a head at one end thereof, the head having a ratchet groove, a chamber connecting the ratchet groove, and a receiving groove located above the chamber, wherein A ratchet wheel is arranged in the ratchet groove, and a ratchet block which is matched with the ratchet wheel is arranged in the chamber, and a dial block which can be rotated in the original direction is arranged in the receiving groove, and the dial block is connected to the ratchet block to drive the ratchet block. Actuating between a first position and a second position, and further, a positioning member is further disposed in the chamber, and when the positioning member abuts against the first recess of the ratchet block, the ratchet block is maintained in the first position, when the positioning member The ratchet block remains in the second position as it abuts against the second recess of the ratchet block. In this way, the two-way ratchet wrench of the present invention can achieve an easy assembly and smooth operation.

Description

Two-way ratchet wrench

This creation is related to a ratchet wrench, especially a two-way ratchet wrench that is easy to assemble and operates smoothly.

The conventional two-way ratchet wrench mainly switches the direction of rotation of the ratchet by changing the engagement position between the ratchet block and the ratchet. The ratchet block usually uses a dial block to create a structural interlocking relationship with the ratchet gear. As long as the dial block is operated, the ratchet block can be changed to the meshing position, thereby achieving the function of steering switching for the ratchet wheel.

Related prior art, such as the Republic of China Announcement No. M286098 patent and the Republic of China Announcement No. M251689, however, after the actual operation, it was found that the two patents faced the same problem, for example, the volume of the dial block was limited to the whole. The structural relationship is prone to difficult assembly, poor reliability, and unsatisfactory operation, which may cause a certain degree of trouble and inconvenience to the user.

The main purpose of this creation is to provide a two-way ratchet wrench that is reliable, easy to assemble, and smooth to operate.

In order to achieve the above main object, the bidirectional ratchet wrench of the present invention comprises a wrench body, a ratchet wheel, a check assembly, and a positioning member. One end of the wrench body has a head, and the other end of the wrench body has a handle. The head of the wrench body has a ratchet groove, a cavity radially communicating with the ratchet groove, and an adjacent to the ratchet groove. And a receiving groove above the chamber; the ratchet is rotatably disposed in the ratchet groove of the wrench body, and is mainly used for snapping a workpiece (such as a screw or a nut), and further, the ratchet outer peripheral mask has a ring a toothed portion; the check assembly has a ratchet block and a dial block, the ratchet block is disposed in the chamber of the wrench body, and the ratchet block has a ratchet portion toward a side of the ratchet wheel, the ratchet tooth The ratchet portion of the block is engaged with the ring gear portion of the ratchet for limiting the rotation of the ratchet in a single direction, the ratchet block having a first recess and a second recess on a side of the ratchet, the dial Rotatablely disposed in the receiving groove of the wrench body and connected to the ratchet block for driving the ratchet block to operate between a first position and a second position; the positioning member is disposed on the body of the wrench body Indoor, when the ratchet block is located at the first position, the positioning member abuts a first recess of the ratchet block, the ratchet is rotated in one of the forward/reverse clockwise directions, and when the ratchet block is in the second position, the positioning member abuts against the second recess of the ratchet block, so that The ratchet rotates in the other direction of the clockwise/counterclock.

Preferably, the dial has a disk portion and a lever connecting the disk portion, the bottom portion of the disk portion has a bottom groove, and the bottom groove is provided with an elastic member, and the elastic member is abutted against the dial block. Between the disc portion and the head of the wrench body, an elastic force is provided to the dial block, so that the dial block can be stably and smoothly operated.

Preferably, the groove wall of the receiving groove of the wrench body has a second inner ring groove, and the outer peripheral surface of the disk portion of the dial block has a second outer ring groove, and the dial block is disposed at the second A second buckle between the inner and outer ring grooves is assembled in the receiving groove. In addition, the slot wall of the second outer ring groove has a slot, and the inner circumference of the second buckle has a convex portion, and the second buckle is positioned by being inserted into the slot. When the second buckle is assembled between the second inner and outer ring grooves, it is less likely to fall, thereby increasing the convenience of assembly.

The detailed construction, features, assembly or use of the two-way ratchet wrench provided with this creation will be described in the detailed description of the subsequent embodiments. However, those of ordinary skill in the art should understand that the detailed description and specific embodiments of the present invention are merely used to illustrate the present invention and are not intended to limit the scope of the patent application.

The Applicant first describes the same or similar elements or structural features thereof in the embodiments and the drawings which will be described below.

Please refer to FIGS. 1 and 2 . The bidirectional ratchet wrench 10 of the present invention comprises a wrench body 20 , a ratchet 30 , a check assembly 40 , and a positioning member 70 .

One end of the wrench body 20 has a handle portion 21, and the other end of the wrench body 20 has a head portion 22. The head portion 22 of the wrench body 20 has a ratchet groove 23, a chamber 24 radially communicating with the ratchet groove 23, and a receiving groove 25 adjacent to the ratchet groove 23 and located above the chamber 24. The ratchet groove 23 The groove wall has a first inner ring groove 26, and the groove wall of the receiving groove 25 has a second inner ring groove 27.

The ratchet wheel 30 is rotatably disposed in the ratchet groove 23 of the wrench body 20 for engaging a workpiece (such as a screw head or a nut, not shown), and the outer peripheral surface of the ratchet wheel 30 has a ring tooth portion 31. In addition, the ratchet 30 is restrained by a cover plate 32 and is not detached from the ratchet groove 23. The outer peripheral cover of the cover plate 32 has a first outer ring groove 33, and is fastened in the first by a first buckle 34. Between the outer ring grooves 26 and 33, the cover plate 32 is fixed to the head portion 22 of the wrench body 20.

The check assembly 40 has a ratchet block 50, a dial block 60 and an elastic member 69, as shown in Figures 2 and 3:

The ratchet block 50 is disposed in the chamber 24 of the wrench body 20, and the ratchet block 50 has a ratchet portion 51 on one side of the ratchet wheel 30, and the ratchet portion 51 of the ratchet block 50 is engaged with the ring tooth portion of the ratchet wheel 30. 31. The ratchet block 50 has a first recess 52 and a second recess 53 on one side of the ratchet 30.

The dial block 60 has a disk portion 61 and a lever 65 for connecting the disk portion 61. The disk portion 61 is disposed in the receiving groove 25 of the wrench body 20 and has a bottom groove 62. The lever 65 is located outside the receiving groove 25 of the wrench body 20, wherein the outer peripheral portion of the disk portion 61 has a second outer ring groove. 63. A second buckle 66 is disposed between the second inner and outer ring grooves 27 and 63, so that the disk portion 61 of the dial block 60 is rotatably assembled to the receiving groove 25 of the wrench body 20.

Furthermore, in order to increase the convenience of assembly, the slot wall of the second outer ring groove 63 may define a slot 64, and the slot 64 may be located at one end of the second outer ring slot 63 (as shown in FIG. 6). Or in the center of the second outer ring groove 63 (as shown in FIG. 7), the inner circumference of the second buckle 66 may be correspondingly provided with a convex portion 67, so that the second buckle 66 is convex. 67 is inserted into the slot 64 as a positioning of the second buckle 66. Therefore, the second buckle 66 is not easy to fall after being assembled in the second outer ring groove 63, and then the second buckle 66 is engaged with the second inner and outer portions by the elastic restoring force of the second buckle 66 itself. Between the ring grooves 27, 63.

In addition, the ratchet block 50 further has a transmission hole 54 extending through the top and bottom surfaces. The transmission hole 54 has a triangular shape in cross section, and the dial block 60 further has a transmission rod 68 connected to the disk portion 61, and the transmission rod 68 is broken. The shape of the surface is quadrangular, and the outer diameter of the transmission rod 68 is smaller than the aperture of the transmission hole 54. The dial 60 is inserted into the transmission hole 54 of the ratchet block 50 by the transmission rod 68, so that the dial 60 can be transmitted through the transmission process. The lever 68 explicitly moves the ratchet block 50 between a first position P1 (shown in Figure 4) and a second position P2 (shown in Figure 5).

The elastic member 69 is disposed in the bottom groove 62 of the dial block 60 and abuts between the disk portion 61 of the dial block 60 and the head portion 22 of the wrench body 20 for providing elastic force to the dial block 60 to reduce the dial of the dial block 60. The frictional interference between the portion 61 and the head portion 22 of the wrench body 20 due to mutual contact makes the dial 60 stably and smoothly actuated.

The positioning member 70 has a positioning ball 71 and an elastic member 72 that abuts against the positioning ball 71, so that the positioning ball 71 can abut against the first concave portion 52 or the ratchet of the ratchet block 50 according to the position of the ratchet block 50. The second recess 53 of the block 50 allows the ratchet block 50 to abut the ratchet 30 to control the direction of rotation of the ratchet 30. When the ratchet block 50 is located at the first position P1 as shown in FIG. 4, the positioning ball 71 abuts against the first recess 52 of the ratchet block 50, and the ratchet 30 can only rotate in the counterclockwise direction when the spine When the tooth block 50 is at the second position P2 as shown in FIG. 5, the positioning ball 71 abuts against the second recess 53 of the ratchet block 50, and the ratchet wheel 30 can only rotate in the clockwise direction.

In summary, the two-way ratchet wrench 10 of the present invention can be more stable and smooth during operation by the structural cooperation between the dial 60 and the ratchet block 50, and the parts are not easily dropped during assembly. In order to achieve increased operational reliability and ease of assembly.

10‧‧‧Two-way ratchet wrench

20‧‧‧Wrench body

21‧‧‧ handle

22‧‧‧ head

23‧‧‧ratchet slot

24‧‧ ‧ room

25‧‧‧ accommodating slots

26‧‧‧First inner ring groove

27‧‧‧Second inner ring groove

30‧‧‧ratchet

31‧‧‧ Ring tooth

32‧‧‧ Cover

33‧‧‧First outer ring groove

34‧‧‧First buckle

40‧‧‧Return components

50‧‧‧ ratchet block

51‧‧‧ ratchets

52‧‧‧First recess

53‧‧‧Second recess

54‧‧‧Drive hole

60‧‧ ‧ dial

61‧‧‧Parts

62‧‧‧ bottom slot

63‧‧‧Second outer ring groove

64‧‧‧ slots

65‧‧‧

66‧‧‧Second buckle

67‧‧‧ convex

68‧‧‧Transmission rod

69‧‧‧Flexible parts

P1‧‧‧ first position

P2‧‧‧ second position

70‧‧‧ Positioning parts

71‧‧‧ Positioning Balls

72‧‧‧Flexible parts

Fig. 1 is a perspective view showing the appearance of a two-way ratchet wrench according to a first embodiment of the present invention. Fig. 2 is an exploded perspective view showing the two-way ratchet wrench of the first embodiment of the present invention. Fig. 3 is a partial longitudinal sectional view showing the two-way ratchet wrench of the first embodiment of the present invention. Figure 4 is a transverse cross-sectional view of the two-way ratchet wrench of the first embodiment of the present invention, mainly showing the ratchet block in the first position. Figure 5 is similar to Figure 4 and mainly shows that the ratchet block is in the second position. Fig. 6 is an exploded perspective view showing the dial block and the second buckle provided by the two-way ratchet wrench of the second embodiment of the present invention. Figure 7 is an exploded perspective view of the dial block and the second buckle provided by the two-way ratchet wrench of the third embodiment of the present invention.

Claims (7)

A two-way ratchet wrench includes: a wrench body having a head at one end and a handle at the other end, the head having a ratchet groove, a chamber radially communicating with the ratchet groove, and an adjacent portion a ratchet groove and a receiving groove above the chamber; a ratchet wheel rotatably disposed in the ratchet groove of the wrench body, and the ratchet outer peripheral mask has a ring tooth portion; a check assembly having a ratchet block a ratchet block is disposed in the chamber of the wrench body, and the ratchet block has a ratchet portion toward a side of the ratchet, and the ratchet portion of the ratchet block is engaged with the ratchet ring a toothed portion, the ratchet block having a first recess and a second recess on a side of the ratchet, the dial being rotatably disposed in the receiving groove of the wrench body and connected to the ratchet block for driving The ratchet block is actuated between a first position and a second position; and a positioning member is disposed in the chamber of the wrench body, and when the ratchet block is located at the first position, the positioning member abuts a first recess of the ratchet block, when the ratchet block is in the second position, The positioning member abuts against the second recess of the ratchet block. The two-way ratchet wrench of claim 1, wherein the dial has a disk portion and a lever connecting the disk portion, the bottom portion of the disk portion has a bottom groove, and the check assembly further has an elastic member. The elastic member is disposed in the bottom groove and abuts between the disk portion of the dial block and the head of the wrench body. The two-way ratchet wrench of claim 2, wherein the groove wall of the receiving groove of the wrench body has a second inner ring groove, and the outer peripheral surface of the disk portion of the dial has a second outer ring groove, the check The assembly further has a second buckle, and the second buckle is disposed between the second inner and outer ring grooves for assembling the dial to the receiving groove. The two-way ratchet wrench of claim 3, wherein the groove wall of the second outer ring groove has a slot, and the inner circumference of the second buckle has a convex portion, and the convex portion is inserted into the slot. The two-way ratchet wrench of claim 2, wherein the ratchet block further has a transmission hole, the dial block further has a transmission rod connected to the disk portion, and the transmission rod of the dial block is inserted into the ratchet block The outer diameter of the transmission rod of the dial block is smaller than the aperture of the transmission hole of the ratchet block. The two-way ratchet wrench according to claim 5, wherein the transmission rod has a quadrangular cross-sectional shape, and the transmission hole has a triangular cross section. The two-way ratchet wrench according to any one of claims 1 to 6, wherein the positioning member has a positioning ball and an elastic member that abuts against the positioning ball, when the ratchet block is located at the first position, The positioning ball top abuts against the first recess of the ratchet block, and when the ratchet block is located at the second position, the positioning ball abuts against the second recess of the ratchet block.