TWI633975B - Wrench structure - Google Patents

Abstract

A wrench structure includes a wrench body having a through-bolt hole and a ratchet hole, and the brake hole has a first port communicating with the ratchet hole, and sequentially abutting member, an elastic member and a The brake member is loaded into the brake hole from the first port on the inner side of the corresponding ratchet hole, and then a ratchet gear is mounted into the ratchet hole; the abutment member is pressed against the limit of the abutment portion to effectively avoid It is known that the patent is loosened by the internal thread limit, and the combination of the abutting members and the avoidance of falling off by the abutting portion can effectively improve the durability of the wrench structure.

Description

Wrench structure

This invention relates to a hand tool, and more particularly to a structural improvement of a ratchet wrench for locking and removing a screw.

At present, the ratchet wrench is one of the common hand tools, and the ratchet wrench can be divided into a one-way ratchet wrench and a two-way ratchet wrench, which are mainly used for locking and removing the screw.

According to the new patent specification bulletin No. "M241173" of the Republic of China Intellectual Property Office, the new name "ratchet wrench structure with high torque value", which reveals the components of the definition, is shown in the figure "fifth figure" and "sixth figure". The accommodating portion (reference numeral 32 in the figure) is formed at a side end of the driving portion (reference numeral 31 in the figure), and the accommodating groove (reference numeral 32 in the figure) is for accommodating a swaying block (reference numeral 50 in the figure) and An elastic member (reference numeral 34 in the figure), wherein the receiving groove (reference numeral 32 in the figure) has an internal thread segment at one end, which can be fixed by a fastener (not numbered) of an externally threaded segment, and avoids internal turbulent blocks (the reference numeral 50 in the figure) and the elastic member (reference numeral 34 in the figure) fall out of the accommodating groove (reference numeral 32 in the figure), and in the installation sequence, the tampering block (reference numeral 50 in the figure) must first be loaded into the accommodating The slot (reference numeral 32 in the figure) is then sequentially mounted with an elastic member (reference numeral 34 in the figure), and then an internal thread (not labeled) located in the outer portion of the receiving groove (reference numeral 32 in the figure) is a set of lock fasteners ( The figure is not shown) to limit the elastic block (reference numeral 50 in the figure) to the elastic member (reference numeral 34 in the figure).

However, in the above-mentioned patented structure, the internal thread (not labeled) of the outer section of the receiving groove (reference numeral 32 in the figure) is easily in the process of screwing the fastener (not labeled) because of improper application and frequent Wear under disassembly and assembly can not effectively combine the lock (not labeled) and cause the loosening, which affects the wrench The operational use function is one of the disadvantages of the use of the conventional patent.

Moreover, in the case that the aforementioned fastener (not labeled) is loosened, even the lock (unlabeled) may be loosened and dropped, causing the swaying block (reference numeral 50 in the figure) and the elastic member (reference numeral 34 in the figure). It also fell out and collapsed, and the use of the wrench to lose the function is the second disadvantage of the use of the patent.

Therefore, how to solve the above-mentioned conventional structure of the outer thread of the accommodating groove is not able to combine the lock and the looseness due to improper application and wear under frequent disassembly, and because the lock is loosely dropped The inventors who invented the inventors and the elastic parts to fall out and collapse, and lose the use of functions, etc., are the difficult points to be solved in this case.

The main purpose of the present invention is to provide a wrench structure. The wrench body has a structure that penetrates a brake hole and communicates with a ratchet hole, and the brake hole has a first port that communicates with the ratchet hole. The elastic member and a braking member are loaded into the braking hole from the first port inside the corresponding ratchet hole, and then a ratchet gear is mounted into the ratchet hole, and the abutting member abuts against the abutting portion. The utility model can effectively avoid the situation that the conventional patent is loosened by the internal thread limit, and the combination of the abutting members and the avoidance of falling off by the abutting portion can effectively improve the durability of the wrench structure.

According to the above purpose, the present invention provides a wrench structure, comprising: a wrench body, one side of which penetrates a brake hole, and the brake hole communicates with a ratchet hole, the brake hole has a first port communicating with the ratchet hole, The brake hole further has a second port opposite to the first port, and the second port is provided with an abutting portion, and the abutting portion protrudes toward the center of the braking hole, thereby limiting the aperture size of the braking hole; a brake set comprising a brake member, an elastic member and a bearing And the elastic member and the brake member are sequentially installed from the first port into the brake hole, the abutting member abuts against the abutting portion, and the elastic member has two ends Abutting the abutting member and the braking member, the braking member is inclined to be provided with a trapezoidal tooth segment, the trapezoidal tooth segment is located at the ratchet hole, a recess is arranged in the center of the abutting member, and a limiting plate is located on a circumferential side of the recess The limit plate abuts against the abutting portion; and a ratchet gear that is mounted with the ratchet hole, the tooth of the ratchet gear meshes with the trapezoidal tooth segment of the brake member; wherein the ratchet gear is the ratchet gear The shaft rotates clockwise and drives the brake member to move toward the second port and pushes against the elastic member. The elastic member elastically urges the brake member to move toward the first port, and the trapezoidal tooth segment engages the ratchet gear and cannot rotate counterclockwise. turn around.

Preferably, a further technical feature of the present invention is that the abutting portion has a straight section connected to an inclined section, and the limiting plate abuts against the inclined section.

Preferably, a further technical feature of the present invention is that the center of the ratchet gear extends through a set of holes having a polygonal geometry.

Preferably, a further technical feature of the present invention is that the ratchet hole is provided with a groove and a flange adjacent to the two ends, and the ratchet gear set is disposed between the groove and the flange.

Preferably, a further technical feature of the present invention is that the teeth of the ratchet gear are located in the ratchet hole and do not directly contact the inner wall of the hole of the ratchet hole.

Preferably, a further technical feature of the present invention is that the brake hole has a large diameter hole and a small diameter hole communicating with the large diameter hole, the brake group is disposed in the large diameter hole, and the abutting member abuts The large diameter hole intersects the small diameter hole.

Preferably, a further technical feature of the present invention is that the small diameter hole is located at the second port.

1‧‧‧Wrench body

11‧‧‧Brake hole

111‧‧‧ Large diameter hole

112‧‧‧Small diameter hole

12‧‧‧ratchet hole

121‧‧‧ Groove

122‧‧‧Flange

13‧‧‧First port

14‧‧‧second port

15‧‧‧Relying

151‧‧‧ Straight section

152‧‧‧Sloping section

2‧‧‧ brake group

21‧‧‧Brakes

211‧‧‧Pushing Department

22‧‧‧Flexible parts

23‧‧‧Relying parts

231‧‧‧ Notch

232‧‧‧Limited board

24‧‧‧Trapezoidal tooth segments

3‧‧‧ Ratchet gear

31‧‧‧ Reserved section

32‧‧‧Set of holes

4‧‧‧Handle

The first figure is a schematic view of a three-dimensional combination according to the invention.

The second figure is a perspective exploded view of the present invention.

The third figure is a schematic cross-sectional view taken along line III-III of the first embodiment of the present invention.

The fourth figure is a partially enlarged schematic view of a third diagram in accordance with the present invention.

The fifth figure is a schematic cross-sectional view (1) of the main body of the wrench according to the present invention.

Figure 6 is a schematic cross-sectional view (2) of the main body of the wrench according to the present invention.

Referring to the first to sixth figures, the present invention provides a wrench structure that can be used for locking and disassembling a screw member, and includes a wrench body 1 having a side that penetrates a brake hole 11 and the brake hole 11 Connected to a ratchet hole 12, the brake hole 11 has a first port 13 communicating with the ratchet hole 12, the brake hole 11 further has a second port 14 opposite to the first port 13, and the second port 14 is provided with abutting a portion 15, the abutting portion 15 is convex toward the center of the braking hole 11, thereby limiting the aperture size of the braking hole 11; a braking group 2 including a braking member 21, an elastic member 22 and a hinge portion The abutting member 23, the elastic member 22 and the braking member 21 are sequentially installed from the first port 13 into the braking hole 11, and the abutting member 23 abuts against the abutting portion 15, The two ends of the elastic member 22 are respectively biased against the abutting member 23 and the braking member 21. The braking member 21 is inclined with a trapezoidal tooth segment 24, and the trapezoidal tooth segment 24 faces the ratchet hole 12, and the abutting portion A notch 231 is disposed at a center of the member 23, and a limiting plate 232 is disposed on a circumferential side of the notch 231. The limiting plate 232 abuts against the abutting portion 15; and a ratchet gear 3 The mounting holes 12 which the ratchet, the ratchet teeth 3 of the gear engaging member 21 of the braking section of the trapezoidal tooth 24; The ratchet gear 3 rotates clockwise with the ratchet hole 12 as an axis and drives the brake member 21 to move toward the second port 14 and pushes against the elastic member 22. The elastic member 22 springs against the brake member 21 The first port 13 is moved, and the trapezoidal tooth segment 24 is engaged with the ratchet gear 3 and cannot be rotated counterclockwise.

The foregoing is a main technical feature of the main embodiment of the present invention, which corresponds to the content of the first item of the patent application scope of the present application, and the object and the embodiment of the present invention are known in detail, and the technical features described in the remaining subsidiary patent scopes are In the detailed description or additional technical features of the first item of the patent application scope, and not to limit the scope of the definition of the scope of the patent application, it should be noted that the patent application is in this case.

According to the wrench structure of the present invention described above, the technical structural features of the wrench structure are further explained below. As shown in the first to fourth figures, the trapezoidal tooth segment 24 is located at one side of the brake member 21. Further, the other end of the brake member 21 has a pushing portion 211, and the elastic member 22 is biased against the pushing portion 211.

The center of the abutting member 23 is provided with a notch 231 and a limiting plate 232 on the circumferential side of the notch 231. The limiting plate 232 abuts against the abutting portion 15 so that the abutting member 23 does not The two ports 14 slide out and fall off. Further, the abutting portion 15 has a straight section 151 connected to an inclined section 152, and one side end of the limiting plate 232 abuts the inclined section 152 of the portion, thereby limiting the The brake group portion is slid out from the second port 14; the end 231 is touched by one end of the push rod member (not shown), whereby the brake group 2 can be pushed from the second port 14 toward the first portion A port 13 is displaced and disengages from the brake hole 11.

The ratchet hole 12 is provided with a groove 121 and a flange 122 adjacent to the inner wall of the hole, and the ratchet gear 3 is disposed between the groove 121 and the flange 122. There is a reserved section 31 and a height difference with the teeth of the ratchet gear 3, whereby the ratchet gear 3 can be installed in the ratchet hole 12 in a structural manner, and the two ends of the ratchet gear 3 are The height difference between the retaining portion 31 and the teeth of the ratchet gear 3 can be engaged with the limiting structure provided by the flange 122 and the recess 121 so that the ratchet gear 3 does not disengage from the ratchet hole 12.

The ratchet gear 3 extends through the hole 32 from the center, and the sleeve hole 32 has a polygonal geometry. As shown in the first figure and the second figure, the sleeve hole 32 is in the shape of a plum, and the lower side of the wrench body 1 extends. a handle portion 4 for gripping; the sleeve hole 32 of the ratchet gear 3 is used for locking a locking screw, and the head end of the screw has a polygonal shape suitable for the sleeve hole 32, When the screw member is buckled on one side and the other side of the sleeve hole 32, the ratchet gear 3 is centered on the ratchet hole 12, and the ratchet gear 3 is engaged by the trapezoidal tooth segment 24 and cannot be in the ratchet hole 12. Counterclockwise rotation is performed, and the ratchet gear 3 is supported to form an operating torque of the wrench body 1. When the screw member is restricted by the sleeve hole 32, the screw member rotates to lock or disassemble the screw member.

FIG. 6 is a cross-sectional view of the wrench body 1 of the wrench structure of the present invention, wherein the brake hole 11 has a large diameter hole 111 and a small diameter hole 112, and the small diameter hole 112 communicates with the large diameter hole 111. The brake group 2 is disposed in the large diameter hole 111, and the abutting member 23 abuts the large diameter hole 111 and the small diameter hole 112, wherein the small diameter hole 112 is located at the second port 14.

According to the description of the present invention, a brake hole 11 is penetrated in the wrench body 1 side, and the brake hole 11 communicates with a ratchet hole 12, and the brake hole 11 has a structure in which the first port 13 communicates with the ratchet hole 12; A technical feature of achieving the object is that the abutting member 23, the elastic member 22 and the braking member 21 are firstly installed into the braking hole 11 from the first port 13 inside the corresponding ratchet hole 12, and then the The ratchet gear 3 is mounted in the ratchet hole 12 to complete the installation. Thereby, the brake member 21 is not detached from the second port 14, and can only be detached from the first port 13; The position of the abutting member 23 is abutted against the abutting portion 15 by the end surface, thereby effectively avoiding the situation in which the conventional patent is loosened by the internal thread limit; and the abutting portion 15 can firmly limit the abutting member 23 The combination and avoiding the falling off of the abutting member 23 effectively improve the durability of the wrench structure.

Claims (7)

A wrench structure, comprising: a wrench body, one side of which penetrates a brake hole, and the brake hole communicates with a ratchet hole, the brake hole has a first port communicating with the ratchet hole, the brake hole further having a second port Opposite the first port, and the second port is provided with an abutting portion protruding toward the center of the braking hole, thereby limiting the size of the opening of the braking hole; and a braking group including a braking member And an elastic member and an abutting member, the abutting member, the elastic member and the braking member are sequentially installed from the first port into the braking hole, and the abutting member abuts against the abutting portion, and The two ends of the elastic member respectively protrude against the abutting member and the braking member. The braking member is inclined to be provided with a trapezoidal tooth segment. The trapezoidal tooth segment is located at the ratchet hole, and a recess is disposed in the center of the abutting member and is located in the concave portion. a limiting plate on the side of the mouth, the limiting plate abuts against the abutting portion; and a ratchet gear that is mounted with the ratchet hole, the teeth of the ratchet gear meshing with the trapezoidal tooth segment of the braking member; The ratchet gear rotates clockwise with the ratchet hole as an axis and drives the brake member toward the first Mobile port and pushing the resilient member, the resilient member comes into elastic pushing the brake member moves to the first port, and the ladder section engaging the ratchet gear teeth can not be counterclockwise rotated. The wrench structure of claim 1, wherein the abutting portion has a straight section connected to an inclined section, and the limiting plate abuts the inclined section. The wrench structure of claim 2, wherein the center of the ratchet gear extends through a set of holes having a polygonal geometry. The wrench structure of claim 3, wherein the ratchet hole is provided with a groove and a flange adjacent to both ends, and the ratchet gear set is disposed between the groove and the flange. The wrench structure of claim 4, wherein the teeth of the ratchet gear are located The inside of the ratchet hole does not directly contact the inner wall of the hole of the ratchet hole. The wrench structure of claim 1, wherein the brake hole has a large diameter hole and a small diameter hole communicating with the large diameter hole, the brake group is disposed in the large diameter hole, and the abutting member is The intersection of the large diameter hole and the small diameter hole is reached. The wrench structure of claim 6 to wherein the small diameter hole is located at the second port.