TWM611358U - Percussion tool for vehicular shaft screw - Google Patents

Abstract

This creation relates to a percussion tool for axle screws, which includes: a working part, the working part is flat, the working part is provided with a top inclined surface and a bottom inclined surface on two opposite sides in the radial direction, and the top The inclined surface is for abutting against a screw member, the bottom inclined surface is for abutting against an axle, and the thickness formed between the top inclined surface and the bottom inclined surface gradually decreases toward an end of the working part.

Description

Percussion tool for axle screws

This creation is about a percussion tool for axle screws.

Generally, a special anti-loosening axle nut is used to lock the nut on the axle to prevent the axle nut from not being locked or loosening due to the long-term action of rotating torque. In order to prevent the axle nut from loosening easily, a positioning groove is provided above the axle. When the axle nut is locked on the axle, the positioning ring of the axle nut can be deformed and projected into the positioning groove by external force. Lock each other to achieve the effect of anti-rotation.

The conventional way to loosen the axle nut is to insert the bit of a screwdriver tool into the positioning ring and the positioning groove. However, the screwdriver head of the screwdriver tool is too flat, so only one side can be supported on the axle, and then the screwdriver head that uses the single side as the fulcrum to move up and down, through repeated operations, the top of the screwdriver head is pushed up against the positioning ring. The part of the positioning ring protruding into the positioning groove is deformed and expanded outward to release the positioning. Therefore, the conventional method in which the screwdriver tool loosens the nut of the wheel shaft causes the screwdriver tool to be unable to be stably supported on the wheel shaft and is not easy to apply force to operate, and the screwdriver bit needs to be repeatedly pulled up and down, resulting in a problem of poor disassembly efficiency.

Therefore, it is necessary to provide a novel and progressive percussion tool for axle screws to solve the above-mentioned problems.

The main purpose of this creation is to provide a percussion tool for axle screws that can be smoothly inserted between the deformed positioning ring and the axle, and can stably and easily expand the positioning ring to deform outwards.

In order to achieve the above objective, this creation provides a percussion tool for axle screws, including: a working part, which is flat, the working part is provided with a top inclined surface and a bottom inclined surface on two opposite sides in the radial direction, respectively, The top inclined surface is used for abutting against a screw member, the bottom inclined surface is used for abutting against an axle, and the thickness formed between the top inclined surface and the bottom inclined surface gradually decreases toward an end of the working part.

The following examples are only used to illustrate the possible implementation of this creation, but they are not intended to limit the scope of the creation to be protected, and we will explain it first.

Please refer to FIGS. 1 to 8, which show a preferred embodiment of this creation. The percussion tool 1 for axle screws of this creation includes a working part 10 and a percussion part 20.

The working part 10 is flat. The working part 10 is provided with a top inclined surface 11 and a bottom inclined surface 12 on two opposite sides in the radial direction. The top inclined surface 11 is for abutting against a positioning ring 5 of the top screw 2 and the bottom The inclined surface 12 is for abutting against an axle 3, and the thickness formed between the top inclined surface 11 and the bottom inclined surface 12 is tapered toward one end 13 of the working part 10; the percussion part 20 is provided with the working part 10 On the opposite side. Preferably, the top inclined surface 11 is radially convex outward. Thereby, it can be smoothly inserted between the positioning ring 5 (such as the deformed positioning ring 5) and the axle 3, and the positioning ring 5 can be moved steadily after being knocked by an external force, so that the positioning ring 5 can be radially rushed back to its original shape.

The working part 10 includes a front end 14 and a back section 15. The front end 14 is located between the end 13 of the working part 10 and the back section 15. The front end 14 is angular, and the front end 14 is provided with two The two inclined surfaces 141 on opposite sides in the radial direction are arranged transversely to each other, the thickness formed between the two inclined surfaces 141 is tapered toward the end 13 of the working portion 10, and the top inclined surface 11 and the bottom inclined surface 12 are respectively provided In the rear section 15, a slope of each slope 141 is different from at least one of the slope of the top slope 11 and the slope of the bottom slope 12. In this embodiment, the slope of each slope 141 is greater than the slope of the top slope 11 and the slope of the bottom slope 12; the front end 14 and the rear section 15 are respectively arranged in a first direction L1, and the extension D1 of the front end 14 in the first direction L1 is smaller than that of the rear section 15 in the The extension dimension D2 in the first direction L1; preferably, a first included angle θ1 is formed between the two inclined surfaces 141, and the working portion 10 defines a first reference line L2 passing through and extending toward the extending direction of the top inclined surface 11 and A second reference line L3 passing through and extending toward the extending direction of the bottom inclined surface 12, the first reference line L2 and the second reference line L3 intersect and form a second included angle θ2 therebetween, and the first included angle θ1 is greater than The angle of the second included angle θ2 is greater than or equal to 20 degrees in this embodiment, so as to be easily inserted between the deformed positioning ring 5 and the axle 3.

The working portion 10 defines a central axis parallel to the first direction L1, the top inclined surface 11 and the bottom inclined surface 12 are located on two opposite sides of the central axis, the top inclined surface 11 is radially convex outward and around the center The axis extends, so that the positioning ring 5 radially rises and restores its original shape (such as an arc shape).

The working portion 10 is further provided with two side surfaces 17 disposed on two opposite sides. Each side surface 17 is connected between one side of the top slope 11 and the bottom slope 12, and the top slope 11 is located between the two side surfaces 17 The extension size is greater than or equal to 3.0 mm. In this embodiment, the extension size of the top inclined surface 11 between the two side surfaces 17 is greater than or equal to 4.0 mm, so that the top inclined surface 11 has a large contact area with the positioning ring 5 , In order to facilitate the recovery of the deformed positioning ring 5 to its original shape.

The front end portion 14 is provided with a pressing end surface 16, the pressing end surface 16 is connected between one side of the two inclined surfaces 141, and the pressing end surface 16 is a convex surface. Specifically, the pressing end surface 16 includes two side slopes 161 and a middle end surface 162. The middle end surface 162 is connected between the two side slopes 141. Each of the side slopes 141 extends from one of the side surfaces 17 toward the first direction L1. Gradually convex toward the middle end surface 162. Preferably, the pressing end surface 16 includes two long sides 163 and two short sides 164, each of the long sides 163 is connected to one of the inclined surfaces 141, and each of the short sides 164 is connected to one of the side surfaces 17. In this way, the pressing end surface 16 can be pressed against the outside of the positioning ring 5, and the positioning ring 5 is deformed toward the groove 4 of the axle 3 by an external force (such as knocking), and can be slightly It is in a concave arc shape so that the positioning ring 5 can be stably clamped in the groove 4, as shown in FIG. 8.

The bottom inclined surface 12 is a linearly extending flat surface to stably support an inclined bottom surface 6 of the slot 4.

The striking tool 1 further includes a body 30 connected between the striking part 20 and the working part 10, and the radial dimension of the striking part 20 is larger than the radial dimension of the body 30. The percussion part 20 has strong structural strength, can be used for stable percussion by a percussion tool, and has a long service life. The body 30 is provided with a grip section 40, and a non-slip structure 41 is provided on the outer periphery of the grip section 40, so that the hand can hold the non-slip structure 41 stably, and has an anti-slip effect.

In use, please refer to Figures 5 to 8 together. The bottom inclined surface 12 can be used to abut the inclined bottom surface 6 of the slot 4 of the axle 3. When an external force acts on the striking tool 1 (such as striking the striking The striking part 20), the bottom inclined surface 12 can continuously abut against the inclined bottom surface 6 to move steadily and axially toward the inside, so as to push up the deformed portion of the positioning ring 5 recessed in the groove 4 and return to its original shape.

1: Percussion tool 2: Screw 3: axle 4: card slot 5: positioning ring 6: Inclined bottom surface 10: Work Department 11: Top slope 12: bottom slope 13: end 14: Front end 141: Slope 15: back section 16: Press against the end face 161: Side slope 162: Mid-end face 163: Long Side 164: short side 17: side 20: Percussion Department 30: Body 40: Grip segment 41: non-slip structure L1: first direction L2: The first reference line L3: Second reference line θ1: The first included angle Θ2: second included angle D1: extended size D2: extended size

Figure 1 is a perspective view of a preferred embodiment of the creation. Figure 2 is a partial front view of Figure 1; Figure 3 is a partial front view of a preferred embodiment of the creation. Figure 4 is a right side view of a preferred embodiment of the creation. Figure 5 is a diagram of the use state of a preferred embodiment of the creation. Figure 6 is a diagram of another use state of creating a preferred embodiment. FIG. 7 is a diagram of another use state of a preferred embodiment of the creation. Fig. 8 is a diagram of another use state of creating a preferred embodiment.

1: Percussion tool

10: Work Department

11: Top slope

12: bottom slope

14: Front end

141: Slope

15: back section

16: Press against the end face

161: Side slope

162: Mid-end face

163: Long Side

164: short side

17: side

20: Percussion Department

30: Body

40: Grip segment

L1: first direction

Claims (10)

A percussion tool for axle screws, including: A working part is flat. The working part is provided with a top inclined surface and a bottom inclined surface on two opposite sides in the radial direction. The top inclined surface is for abutting against a top screw, and the bottom inclined surface is for abutting against an axle. The thickness formed between the inclined surface and the bottom inclined surface tapers toward an end of the working part. The percussion tool for axle screws according to claim 1, wherein the working part includes a front end and a rear section, the front end is located between the end of the working part and the rear section, and the front end is angular , The front end portion is provided with two inclined surfaces on two opposite sides in the radial direction, the two inclined surfaces are arranged transversely to each other, the thickness formed between the two inclined surfaces gradually shrinks toward the end of the working part, the top inclined surface and the bottom inclined surface They are respectively arranged in the rear section, and a slope of each of the slopes is different from at least one of the slope of the top slope and the slope of the bottom slope. The percussion tool for axle screws according to claim 2, wherein the front end and the rear section are respectively arranged in a first direction, and the extension of the front end in the first direction is smaller than that of the rear section in the The extension in the first direction. The percussion tool for axle screws according to claim 2, wherein a first included angle is formed between the two inclined surfaces, and the working part defines a first reference line passing through and extending toward the extending direction of the top inclined surface and a first reference line A second reference line passing through and extending toward the extending direction of the bottom inclined surface, the first reference line and the second reference line intersect and form a second included angle, the angle of the first included angle is greater than the angle of the second included angle. The percussion tool for axle screws according to claim 4, wherein the angle of the second included angle is greater than or equal to 20 degrees. The percussion tool for axle screws according to claim 1, wherein the working part is additionally provided with two side surfaces arranged on two opposite sides, and each side surface is connected between one side of the top inclined surface and the bottom inclined surface , The extension of the top inclined surface between the two side surfaces is greater than or equal to 3.0 mm. The percussion tool for axle screws according to claim 1, wherein the bottom inclined surface is a straight surface extending linearly. The percussion tool for axle screws according to claim 1 further includes a percussion part provided on the opposite side of the working part. The percussion tool for axle screws according to any one of claims 1 to 8, wherein the top inclined surface is arc convex radially outward. The percussion tool for axle screws according to claim 4, wherein the front end and the rear section are respectively arranged in a first direction, and the extension of the front end in the first direction is smaller than that of the rear section in the The extension in the first direction; the working part is additionally provided with two side surfaces arranged on two opposite sides, each of the side surfaces is connected between one side of the top slope and the bottom slope, and the top slope is between the two side surfaces The extension size of the bottom surface is greater than or equal to 4.0 mm; the bottom slope is a linearly extending straight surface; the percussion tool further includes a percussion part, the percussion part is arranged on the opposite side of the working part; the percussion The tool further includes a body connected between the knocking part and the working part. The radial dimension of the knocking part is larger than the radial dimension of the body; the body is provided with a grip section, and the grip The outer periphery of the holding section is provided with a non-slip structure; the front end is provided with a pressing end surface, the pressing end surface is connected between one side of the two inclined surfaces, the pressing end surface is a convex surface; the pressing end surface includes two long sides and Two short sides, each of the long sides is connected to one of the bevels, and each of the short sides is connected to one of the side surfaces; the pressing end surface includes two side bevels and a middle end surface, the middle end surface is connected between the two side bevels, each of the The side slope is gradually convex toward the first direction from one of the side surfaces to the middle end surface; the working part defines a central axis parallel to the first direction, the top slope and the bottom slope are located on two opposite sides of the central axis, The top inclined surface is radially convex outward and extends around the central axis.

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