Special-shaped bolt dismounting tool

Abstract

The utility model relates to the technical field of manual tools, and particularly discloses a special-shaped bolt disassembling and assembling tool which comprises a supporting frame, an ejector rod and a supporting ring. The supporting frame is in an equilateral triangle shape, three ejector rods are connected in a threaded mode at the positions penetrating through three vertexes of the supporting frame, the axes of the three ejector rods intersect at the center of the supporting frame, a supporting ring is internally connected to the three end edges of the supporting frame, and the ejector rods penetrate through the supporting ring and are connected with the supporting ring in a sliding mode. The supporting frame is triangular, the overall structural strength is high, and the supporting ring is fixedly connected into the supporting frame and can support the ejector rod; the tool can adapt to various special-shaped bolts in the mode that the ejector rod ejects and presses the bolt, the ejecting and pressing head is arranged at the end of the ejector rod in a rotating mode, the phenomenon that the threaded rod slides relative to the bolt when the threaded rod rotates, and then loosening is caused can be avoided, and the tool and the bolt are more stably fixed.

Description

Technical field:

[0001] The utility model relates to the technical field of hand tools, in particular to a tool for disassembling and assembling special-shaped bolts. Background technology:

[0002] Bolts are very common as a fastener. Different shapes and sizes of bolts require different sizes of wrenches or sockets for disassembly and assembly. When some bolts are of non-standard size or special shape, ordinary wrenches cannot be used for disassembly and assembly. Common bolts may also be damaged by corrosion, impact, etc., resulting in deformation of the nuts and caps of the bolts, making it impossible for conventional wrenches or sockets to tighten the bolts, making disassembly difficult, time-consuming and labor-intensive. Utility model content:

[0003] The utility model aims to provide a tool for disassembling and assembling special-shaped bolts to solve the problems existing in the prior art.

[0004] The utility model is implemented by the following technical scheme: it includes a support frame, a push rod and a support ring; the support frame is an equilateral triangle, three push rods are threadedly connected through the three vertices of the support frame, the axes of the three push rods intersect at the center of the support frame, the three end edges of the support frame are connected to a support ring, and the push rod passes through the support ring and is slidably connected to the support ring.

[0005] Furthermore, the push rod includes a screw, a handle and a push head. The screw passes through the support frame and the support ring in sequence. One end of the screw is placed in the support ring and is coaxially rotatably connected to the push head, and the other end is fixed with a handle.

[0006] Furthermore, a V-shaped groove is provided at the end of the pressing head.

[0007] Furthermore, the screw rod is connected to the top pressure head through a bearing.

[0008] The advantages of the utility model are as follows: the support frame is triangular in shape, and the overall structural strength is relatively high. A support ring is fixedly connected inside the support frame to support the push rod. Various special-shaped bolts can be adapted by means of the push rod pressing the bolt. A rotatable pressing head is provided at the end of the push rod to prevent displacement between the screw rod and the bolt when the screw rod rotates, thereby making the tool and the bolt more stably fixed. Description of the drawings:

[0009] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0010] Figure 2 It is a schematic diagram of the structure of the top rod.

[0011] In the figure: support frame 1, push rod 2, support ring 3, screw rod 201, handle 202, push head 203, V-shaped groove 204, bearing 205. Specific implementation method:

[0012] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0013] In the description of the present invention, it should be noted that the terms "center", "up", "down", "front", "back", "top", "bottom", "left", "right", "vertical", "horizontal", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0014] like Figure 1 As shown: a special-shaped bolt disassembly and assembly tool, which includes a support frame 1, a push rod 2 and a support ring 3; the support frame 1 is an equilateral triangle, and three push rods 2 are threadedly connected through the three vertices of the support frame 1, and the axes of the three push rods 2 intersect at the center of the support frame 1. Its working principle is to use the three push rods 2 to clamp and fix the bolts at the center position, and then rotate to disassemble and assemble the special-shaped bolts. Therefore, the support frame 1 is an equilateral triangle, which can better withstand the reaction force of the push rod 2 and is not easy to deform when the clamping bolt is rotated horizontally; a support ring 3 is connected to the three end edges of the support frame 1, and the push rod 2 passes through the support ring 3 and is slidably connected to the support ring 3. The support ring 3 is used to strengthen the structural strength of the support frame 1 and can prevent the push rod 2 from being bent. Since the push rod 2 will be subjected to horizontal bending force during the removal and installation of the bolts by this tool, the support ring 3 can prevent the push rod 2 from bending and deformation during use.

[0015] like Figure 2As shown: the push rod 2 includes a screw 201, a handle 202 and a push head 203. The screw 201 passes through the support frame 1 and the support ring 3 in sequence. One end of the screw 201 placed in the support ring 3 is coaxially connected to the push head 203. The screw 201 and the push head 203 are connected through a bearing 205. The bearing 205 adopts a thrust bearing and can bear a larger axial pressure. When the push rod 2 is tightening the bolt, the screw 201 rotates. In order to ensure that the push position does not slip, a freely rotating push head 20 is set between the screw 201 and the bolt. 3. When the top pressure head 203 is tightening the bolt, it will not rotate, so it is not easy to slip and can be firmly in contact with the bolt; further, in order to adapt to bolts of different shapes, a V-shaped groove 204 is provided at the end of the top pressure head 203. According to the specific shape, the top pressure head 203 can be clamped and fixed on the bolt through the V-shaped groove 204, and a handle 202 is fixed at the other end. The handle 202 can increase the force arm when rotating the screw 201, and then a greater pressure can be applied to the top pressure head 203 at the end of the screw 201, so that the bolt can be fixed more stably.

[0016] Instructions for use: When using, first withdraw the three push rods 2 outward from the support frame 1, then place the bolt to be disassembled and installed in the center of the support ring 3, adjust the length of the push rod 2 in sequence to make the push head 203 contact the bolt, and adjust the angle of the push head 203 to clamp the bolt, and then continue to tighten the push rod 2 to ensure that the bolt is fixed, and then rotate according to the thread direction of the bolt to disassemble and assemble the bolt. This tool has a push rod 2 with adjustable length and a push head 203 that can adapt to various shapes, which can support and fix various special-shaped bolts.

Claims

1. A tool for disassembling and assembling special-shaped bolts, characterized in that: The invention comprises a support frame (1), a push rod (2) and a support ring (3); the support frame (1) is an equilateral triangle, three push rods (2) are threadedly connected through three vertices of the support frame (1), the axes of the three push rods (2) intersect at the center of the support frame (1), three end edges of the support frame (1) are internally connected to a support ring (3), and the push rod (2) passes through the support ring (3) and is slidably connected to the support ring (3).

2. A tool for disassembling and assembling special-shaped bolts according to claim 1, characterized in that: The push rod (2) comprises a screw rod (201), a handle (202) and a push head (203); the screw rod (201) passes through the support frame (1) and the support ring (3) in sequence; one end of the screw rod (201) is placed in the support ring (3) and is coaxially rotatably connected to the push head (203); the other end is fixedly provided with a handle (202).

3. A tool for disassembling and assembling special-shaped bolts according to claim 2, characterized in that: The end of the pressing head (203) is provided with a V-shaped groove (204).

4. A tool for disassembling and assembling special-shaped bolts according to claim 2, characterized in that: The screw rod (201) is connected to the top pressure head (203) via a bearing (205).

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