Special tool for opening cotter pin

Abstract

The utility model discloses a special tool for opening a cotter pin, which relates to the technical field of cotter pin disassembly and assembly and comprises a pair of clamp bodies with hinge holes in the middle, the clamp bodies are hinged to the hinge holes, and positioning pins are rotatably connected in the hinge holes. The plier body comprises a plier head, a plier handle, a side pressing block, a blade, an excess material groove and a front pressing block; the side face pressing block and the front face pressing block are of rectangular sheet structures perpendicularly fixed to the side face and the front face of the tip end of the plier head. The excess material groove is formed in the opposite surface of the plier head; the cutting edges surround the side of the excess material groove and are positioned on the opposite surfaces of the paired tong heads; the blades comprise front blades and side blades; the operation flexibility when the cotter pin is cut off is improved by arranging the cutting edges on the multiple sides; by arranging the side face pressing block and the front face pressing block, the function of clamping and pressing the cotter pin can be conveniently achieved under the working condition of all angles, by arranging the excess material groove, the cotter pin can be stored after being cut off, and the situation that the cotter pin flies to cause personnel injury or is left in a site is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to open pin dismounting technical field, more specifically, the utility model relates to open pin special tool. BACKGROUND

[0002] The open pin can be wound at the slot of the nut, and is used for the safety belt nut to avoid the nut loosening.

[0003] At present, there is no special tool in the working scene of opening the open pin in various industries. The operators need to use multiple tools (diagonal tongs, iron handle cutting knife, hammer, etc.) in the process of opening the open pin. The steps are complicated, especially some work positions are limited by space, and the operation is not convenient. A large amount of working time is often occupied, time and effort are consumed, the working quality is affected, and the cut part of the open pin is easily left in the working site if the protection is not proper, secondary cleaning is needed, labor is wasted, and injury may occur during the cutting process, which may cause risks. UTILITY MODEL CONTENT

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides open pin special tool.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] The open pin special tool comprises a pair of body with a hinge hole in the middle, a pair of body is hinged in the hinge hole, and a positioning pin is rotatably connected in the hinge hole.

[0007] The side pressing block is a pair of rectangular sheet structures with consistent direction, which is fixed vertically on the side of the tip of the jaw, and is close to the side of the tip of the jaw.

[0008] The front pressing block is a pair of rectangular sheet structures with consistent direction, which is fixed vertically on the front of the tip of the jaw, and is close to the front of the tip of the jaw.

[0009] The excess material groove is arranged on the opposite surface of the jaw.

[0010] The cutting edge surrounds the side of the excess material groove, is located on the opposite surface of the pair of jaws, and the cutting edges are opposite to each other. The cutting edge comprises a front cutting edge on the opposite side of the tip of the jaw and a side cutting edge on the two sides of the jaw and opposite to each other.

[0011] As a further preferred embodiment of the utility model, the included angle of the cutting edge is 40°-45°, which is used to improve the supporting force of the cutting edge, increase the durability, and guide the fragments after cutting the open pin through the setting of the angle.

[0012] As a further preferred embodiment of the present application, a rubber sleeve is fixed on the outer side of the handle to facilitate operation.

[0013] As a further preferred embodiment of the present application, the side of the front pressing block is aligned with the side of the jaw, and the side pressing block is located on the side of the jaw away from the front pressing block, so as to prevent the front pressing block and the side pressing block from being blocked during use and affecting the use effect of the pressing block.

[0014] As a further preferred embodiment of the present application, the thickness of the side pressing block and the front pressing block is 0.8-1.5mm, so that the pressing block with appropriate thickness can be inserted into a small gap while providing support, thereby avoiding the distortion of the pressing block when clamping and bending the cotter pin.

[0015] As a further preferred embodiment of the present application, the side pressing block has a gap of 0.8-1.5mm from the plane of the tip of the jaw, so as to provide an operation allowance for the side pressing block.

[0016] Technical effects and advantages of the present application:

[0017] 1. The multiple-sided cutting edge improves the operational flexibility when cutting the cotter pin.

[0018] 2. The side pressing block and the front pressing block facilitate the flexible insertion of the tail of the cotter pin into the nut groove at various angles when opening the cotter pin, and facilitate the clamping of the cotter pin out of the nut groove and the clamping and pulling out of the bolt with a safety hole when removing the cotter pin.

[0019] 3. The excess material groove realizes the storage of the excess part of the cotter pin after cutting, and avoids the damage of personnel or the leaving of the excess part in the work site. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic view of the special tool for opening the cotter pin of the present application.

[0021] Figure 2 It is a perspective view of one side of the jaw body of the special tool for opening the cotter pin of the present application.

[0022] Figure 3 It is a top view of one side of the jaw body of the special tool for opening the cotter pin of the present application.

[0023] Figure 4 It is a front view of the special tool for opening the cotter pin of the present application.

[0024] Figure 5 It is Figure 4 It is a sectional view at A-A.

[0025] The reference signs are: 1, side pressing block; 2, blade; 201, front blade; 202, side blade; 3, excess material groove; 4, front pressing block; 5, hinged hole; 6, handle; 7, positioning pin; 8, head. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Referring to the drawings Figures 1-5 As shown in the drawings, the special tool for opening the pin includes a pair of bodies with a hinged hole 5 in the middle, the pair of bodies are hinged in the hinged hole 5, and a positioning pin 7 is rotatably connected in the hinged hole 5; the body includes a head 8 and a handle 6, and further includes a side pressing block 1, a blade 2, an excess material groove 3, and a front pressing block 4; the side pressing block 1 is a rectangular sheet structure fixed perpendicularly to the side of the head 8, and the side pressing blocks 1 fixed to the sides of the pair of heads 8 are consistent in direction, and the side pressing block 1 is close to the tip of the head 8; the front pressing block 4 is a rectangular sheet structure fixed perpendicularly to the tip of the head 8, and the front pressing blocks 4 fixed to the tips of the pair of heads 8 are consistent in direction; the excess material groove 3 is arranged on the opposite faces of the head 8; the blade 2 surrounds the side of the excess material groove 3 and is located on the opposite faces of the pair of heads 8, and the edges of the blade 2 are opposite in direction; the blade 2 includes a front blade 201 on the opposite sides of the tip of the head 8 and side blades 202 on the two sides of the head 8 and opposite in direction.

[0028] As Figure 2 and Figure 5 shown in the drawings, in the embodiments of the utility model, the included angle of the blade 2 is 40°-45°, which is used for improving the supporting force of the blade 2, increasing the durability, and facilitating the orientation of the fragments after the pin is cut off through the setting of the angle.

[0029] As Figure 1 shown in the drawings, in the embodiments of the utility model, the handle 6 is covered and fixed with a rubber sleeve on the outside, which is convenient for operation.

[0030] As Figures 2-4As shown, in the embodiment of the utility model, the side of the front pressing block 4 is aligned with the side of the jaw 8, the side pressing block 1 is located on the side of the jaw 8 away from the front pressing block 4, preventing the front pressing block 4 and the side pressing block 1 from being blocked during use, affecting the use effect of the pressing block, the thickness of the side pressing block 1 and the front pressing block 4 is 0.8-1.5mm, the pressing block with proper thickness is convenient for exploring into small gaps while providing support, avoiding the distortion of the pressing block when clamping and bending the split pin, there is a gap of 0.8-1.5mm between the side pressing block 1 and the tip plane of the jaw 8, providing the operation allowance of the side pressing block 1.

[0031] The working method of the utility model includes two parts of opening the split pin and removing the split pin: when opening the split pin, according to the working procedure of opening the split pin, the appropriate split pin is inserted into the safety hole of the bolt with hole, the part needing to be pressed into the nut groove is reserved, according to the different working space, the side blade 202 or the front blade 201 is selected to cut off the excess part of the split pin, the cut-off part falls into the excess material groove 3, the jaw handle 6 is loosened to take out the cut-off part, according to the different working space, the front pressing block 4 or the side pressing block 1 is selected to press the split pin into the groove of the nut by holding the jaw handle 6, and the whole work of opening the split pin is completed. When removing the split pin, according to the different working space, the front pressing block 4 or the side pressing block 1 of the special tool is selected, the split pin pressed into the groove of the nut is clamped out, and the two side separated parts are clamped and adhered, then the head of the split pin is clamped by the front pressing block 4 or the side pressing block 1, and the split pin is removed by pulling force and rotating force.

[0032] The above is only the preferred embodiment of the utility model, and is not used for limiting the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A special tool for opening a door bolt, comprising a pair of jaw bodies with a hinge hole in the middle, a pair of said jaw bodies are hinged to the hinge hole, and a positioning pin is rotatably connected in the hinge hole; said jaw bodies comprise a jaw head and a jaw handle, characterized in that: It also includes side pressing block, blade, excess material groove, front pressing block; The side pressing block is vertically fixed on the side of the tip of the plier head, which is a pair of rectangular sheet structures with consistent direction, and is close to the side of the tip of the plier head; The front pressing block is vertically fixed on the front of the tip of the plier head, which is a pair of rectangular sheet structures with consistent direction, and is close to the front of the tip of the plier head; The excess material groove is opened on the opposite side of the plier head; The blade surrounds the side of the excess material groove, and is located on the opposite side of the pair of plier heads, and the edges of the blade are opposite to each other; the blade includes front blades on the opposite side of the tip of the plier head and side blades on the two sides of the plier head and opposite to each other.

2. The tool as defined in claim 1, wherein: The included angle of the blade is 40°-45°.

3. The tool as defined in claim 1, wherein: The outer side of the plier handle is covered with a rubber sleeve.

4. The tool as defined in claim 1, wherein: The side of the front pressing block is aligned with the side of the plier head; the side pressing block is located on the side of the plier head away from the front pressing block.

5. The tool as defined in claim 1, wherein: The thickness of the side pressing block and the front pressing block is 0.8-1.5mm.

6. The tool as defined in claim 1, wherein: There is a gap of 0.8-1.5mm between the side pressing block and the tip plane of the plier head.

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