Automobile tire wrench with convenient storage and stress application functions

Abstract

The utility model relates to the technical field of manual hardware tools, in particular to an automobile tire wrench with convenient storage and stress application functions. Comprising a rotating shaft, a counter bore is formed in the upper portion of the rotating shaft, a rotating limiting block is rotationally installed in the counter bore, a rotating limiting mechanism is arranged between the rotating limiting block and the side wall of the rotating shaft, a first polygonal square hole is formed in the lower portion of the rotating shaft, a first sliding rod is slidably installed in the first polygonal square hole, and first sleeves are arranged at the two ends of the first sliding rod respectively; a second polygonal square hole is formed in the position, located on the outer side of the counter bore, of the rotary limiting block, a second sliding rod is slidably installed in the second polygonal square hole, and second sleeves are arranged at the two ends of the second sliding rod correspondingly. When the nut is screwed, the length of the first sliding rod or the second sliding rod serving as a force application rod can be adjusted according to needs, and the force application effect can be achieved without the help of an external force application rod. In addition, the first sliding rod and the second sliding rod can be rotated from a vertical state to a parallel state, so that the size is reduced, the space is saved, and storage is convenient.

Description

Technical field:

[0001] The utility model relates to the technical field of manual hardware tools, in particular to an automobile tire wrench with convenient storage and force-adding functions. Background technology:

[0002] At present, automobile tire wrenches generally use cross socket wrenches to realize the screwing work of nuts. Its structure is disclosed in the patent application with publication number CN210414327U, which discloses a cross-shaped multi-caliber wrench structure. Its structure mainly includes an intermediate seat. The intermediate seat and four evenly distributed wrench sockets constitute a cross-shaped wrench structure. The intermediate seat and the four wrench sockets are fixedly connected. When screwing the nut, the length of the force rod is fixed. When force is required, it is necessary to use an external force rod to achieve it. When use is completed, the cross wrench structure cannot be folded, occupies a large space, and is very inconvenient to store. Utility model content:

[0003] The utility model provides a car tire wrench with convenient storage and force application functions to make up for the deficiencies in the prior art, solves the problem that the force application rod of the previous car tire wrench is fixed and cannot be adjusted, and solves the problem that the cross of the previous car tire wrench cannot be folded and occupies a large space.

[0004] The technical solution adopted by the utility model to solve the above technical problems is:

[0005] A car tire wrench with convenient storage and force-adding functions comprises a rotating shaft, a countersunk hole is provided on the upper part of the rotating shaft, a rotating limit block is rotatably installed in the countersunk hole, a rotating limit mechanism is provided between the rotating limit block and the side wall of the rotating shaft, a first polygonal square hole is provided on the lower part of the rotating shaft, a first sliding rod is slidably installed in the first polygonal square hole, and first sleeves are respectively provided at both ends of the first sliding rod; a second polygonal square hole is provided at the position of the rotating limit block located outside the countersunk hole, a second sliding rod is slidably installed in the second polygonal square hole, and second sleeves are respectively provided at both ends of the second sliding rod.

[0006] The rotation limiting mechanism comprises a rotation groove arranged in the side wall of the rotation shaft, and a limiting pin is arranged at a position corresponding to the rotation groove on the rotation limiting block, and the limiting pin rotates in the rotation groove.

[0007] Both ends of the rotating groove are respectively provided with limiting grooves matched with the limiting pin shafts.

[0008] The angle between the two limiting grooves is 90 degrees.

[0009] A compression spring is arranged between the bottom of the rotation limit block and the rotation shaft.

[0010] The side walls of the first polygonal square hole and the second polygonal square hole are respectively provided with ball screws matched with the first sliding rod and the second sliding rod.

[0011] The first sliding rod and the second sliding rod are polygonal square rods matched with the first polygonal square hole and the second polygonal square hole.

[0012] The utility model adopts the above solution and has the following beneficial effects:

[0013] By setting a rotating shaft and a rotating limit block, the rotating shaft and the rotating limit block can rotate relative to each other, the first sliding rod is slidably installed in the first polygonal square hole of the rotating shaft, and the second sliding rod is slidably installed in the second polygonal square hole of the rotating limit block, the positions of the first sliding rod and the second sliding rod in the first polygonal square hole and the second polygonal square hole can be adjusted arbitrarily, when screwing the nut, the length of the first sliding rod or the second sliding rod as the force rod can be adjusted as needed, and the force can be applied without the aid of an external force rod; in addition, by rotating the rotating shaft and the rotating limit block, the first sliding rod and the second sliding rod can be turned from a vertical state to a parallel state, so as to reduce the volume, save space, and facilitate storage. Description of the drawings:

[0014] Figure 1 It is a structural schematic diagram of the utility model in which the first sliding rod and the second sliding rod are in a vertical state.

[0015] Figure 2 It is a structural schematic diagram of the utility model in which the first sliding rod and the second sliding rod are in a parallel state.

[0016] Figure 3 The utility model is a schematic diagram of the assembly structure of the rotation limit block and the rotation shaft.

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the rotating shaft of the utility model.

[0018] In the figure, 1, rotating shaft, 2, countersunk hole, 3, rotating limit block, 4, first polygonal square hole, 5, first sliding rod, 6, first sleeve, 7, second polygonal square hole, 8, second sliding rod, 9, second sleeve, 10, rotating groove, 11, limit pin, 12, limit groove, 13, compression spring, 14, ball screw. Specific implementation method:

[0019] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0020] like Figure 1-4As shown, a car tire wrench with convenient storage and force-applying functions comprises a rotating shaft 1, a countersunk hole 2 is provided on the upper part of the rotating shaft 1, a rotating limit block 3 is rotatably installed in the countersunk hole 2, a rotating limit mechanism is provided between the rotating limit block 3 and the side wall of the rotating shaft 1, a first polygonal square hole 4 is provided on the lower part of the rotating shaft 1, a first sliding rod 5 is slidably installed in the first polygonal square hole 4, and first sleeves 6 are respectively provided at both ends of the first sliding rod 5; a second polygonal square hole 7 is provided at the position of the rotating limit block 3 located outside the countersunk hole 2, a second sliding rod 8 is slidably installed in the second polygonal square hole 7, and second sleeves 9 are respectively provided at both ends of the second sliding rod 8.

[0021] The rotation limiting mechanism comprises a rotation groove 10 arranged in the side wall of the rotation shaft 1 , and a limiting pin 11 is arranged on the rotation limiting block 3 at a position corresponding to the rotation groove 10 , and the limiting pin 11 rotates in the rotation groove 10 .

[0022] The two ends of the rotation slot 10 are respectively provided with limiting slots 12 matched with the limiting pin shaft 11 . When the limiting pin shaft 11 rotates to the two ends of the rotation slot 10 , the limiting slots 12 can limit the limiting pin shaft 11 .

[0023] The angle between the two limit grooves 12 is 90 degrees. When the limit pin 11 rotates from the limit groove 12 at one end of the rotation groove 10 to the limit groove 12 at the other end, the rotation limit block 3 rotates exactly 90 degrees, so that the first sliding rod 5 and the second sliding rod 6 are switched between the vertical state and the parallel state.

[0024] A compression spring 13 is provided between the bottom of the rotation limit block 3 and the rotation shaft 1. The elastic force of the compression spring 13 can automatically cause the limit pin 11 to be inserted into the limit groove 12. Pressing the rotation limit block 3 can cause the limit pin 11 to be disengaged from the limit groove 12.

[0025] The side walls of the first polygonal square hole 4 and the second polygonal square hole 7 are respectively provided with ball screws 14 that cooperate with the first sliding rod 5 and the second sliding rod 8, which can reduce the gap between the first sliding rod 5, the second sliding rod 8 and the first polygonal square hole 4, the second polygonal square hole 7 to ensure the stability of sliding.

[0026] The first sliding rod 5 and the second sliding rod 8 are polygonal square rods that match the first polygonal square hole 4 and the second polygonal square hole 7, usually four-cornered or six-cornered, to prevent the first sliding rod 5 and the first polygonal square hole 4, and the second sliding rod 8 and the second polygonal square hole 7 from relative rotation.

[0027] Working principle:

[0028] When the first sliding rod 5 and the second sliding rod 8 are in a relatively vertical state, the function of a car tire wrench can be realized. When the first sleeve 6 or the second sleeve 9 is tightening the nut, the position of the first sliding rod 5 and the second sliding rod 8 in the first polygonal square hole 4 and the second polygonal square hole 7 can be adjusted as needed, thereby adjusting the length of the first sliding rod 5 or the second sliding rod 8 as a force rod, and a force-adding effect can be achieved without the aid of an external force-adding rod; when not in use, the rotation limit block 3 is pressed downward, the compression spring 13 is compressed, and the limit pin 11 is moved from the limit position at one end to the limit position at the other end. The limit pin 11 loses its limiting function when it disengages from the groove 12 and enters the rotation groove 10. The limit pin 11 loses its limiting function. At this time, the rotation limit block 3 can be rotated, and the rotation limit block 3 drives the limit pin 11 to rotate to the other end of the rotation groove 10. Then the rotation limit block 3 is released. Under the elastic force of the compression spring 13 itself, the limit pin 11 automatically snaps into the limit groove 12 at the other end for limiting. The rotation limit block 3 also drives the second sliding rod 8 to rotate 90 degrees, so that the first sliding rod 5 and the second sliding rod 8 are in a relatively parallel state, so as to reduce the volume, save space and facilitate storage.

[0029] The above-mentioned specific implementation manner cannot be used as a limitation on the protection scope of the present utility model. For those skilled in the art, any replacement, improvement or change made to the implementation manner of the present utility model falls within the protection scope of the present utility model.

[0030] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A car tire wrench with convenient storage and force-adding functions, characterized in that: It includes a rotating shaft, a countersunk hole is provided on the upper part of the rotating shaft, a rotating limit block is rotatably installed in the countersunk hole, a rotating limit mechanism is provided between the rotating limit block and the side wall of the rotating shaft, a first polygonal square hole is provided on the lower part of the rotating shaft, a first sliding rod is slidably installed in the first polygonal square hole, and first sleeves are respectively provided at both ends of the first sliding rod; a second polygonal square hole is provided at the position of the rotating limit block located outside the countersunk hole, a second sliding rod is slidably installed in the second polygonal square hole, and second sleeves are respectively provided at both ends of the second sliding rod.

2. The automobile tire wrench with convenient storage and force-adding functions according to claim 1, characterized in that: The rotation limiting mechanism comprises a rotation groove arranged in the side wall of the rotation shaft, and a limiting pin is arranged at a position corresponding to the rotation groove on the rotation limiting block, and the limiting pin rotates in the rotation groove.

3. The automobile tire wrench with convenient storage and force-adding functions according to claim 2, characterized in that: Both ends of the rotating groove are respectively provided with limiting grooves matched with the limiting pin shafts.

4. The automobile tire wrench with convenient storage and force-adding functions according to claim 3, characterized in that: The angle between the two limiting grooves is 90 degrees.

5. The automobile tire wrench with convenient storage and force-adding functions according to claim 4, characterized in that: A compression spring is arranged between the bottom of the rotation limit block and the rotation shaft.

6. The automobile tire wrench with convenient storage and force-adding functions according to claim 1, characterized in that: The side walls of the first polygonal square hole and the second polygonal square hole are respectively provided with ball screws matched with the first sliding rod and the second sliding rod.

7. The automobile tire wrench with convenient storage and force-adding functions according to claim 1, characterized in that: The first sliding rod and the second sliding rod are polygonal square rods matched with the first polygonal square hole and the second polygonal square hole.

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