A size-adjustable and storable chain disassembling device

Abstract

The utility model relates to a chain dismounting device which is adjustable in size and can be stored, and belongs to the technical field of chain dismounting. The device is composed of a groove box, a workbench, a supporting arm, a jacking rod and a net door. The groove box and the workbench are connected by bolts. The front and upper surfaces of the groove box are open, and the front surface is provided with the net door. The workbench is arranged in the groove box, and a circular through hole is formed in the middle of the workbench. The clamp is displaced through the slide on the workbench and clamped on the workbench through the clamp nut and clamp bolt. The side of the groove box is provided with the supporting arm, which extends horizontally towards the surface of the workbench and is provided with a through hole. The jacking rod is installed in the through hole, and the chain pin shaft ejected by the jacking rod falls into the groove box below. The utility model overcomes the problem that the previous chain dismounting device can only dismount limited specifications of chains and it is difficult to store the dismounted parts. The utility model effectively prevents the loss of the dismounted parts and can also clamp chains of different specifications by adjusting the relative positions of the clamps, thereby improving the dismounting efficiency and safety factor.

Description

Technical Field

[0001] This utility model belongs to the field of chain disassembly technology, specifically relating to an adjustable and retractable chain disassembly device. Background Technology

[0002] A chain is assembled from multiple inner and outer links, designed for stability and ease of use. During typical disassembly, wear, rust, and aging can make the chain difficult to remove or cause instability during disassembly.

[0003] With prolonged use, chains accumulate rust and carbon deposits, increasing resistance during operation. Therefore, disassembly, cleaning, and lubrication are necessary to reduce wear and friction and extend chain lifespan. Due to carbon buildup, the chain must be disassembled into individual inner and outer links for cleaning. Existing disassembly tools (Shougang Jingtang Iron & Steel Co., Ltd., a chain disassembly device, CN202320797820.2, 2024-05-10) can only disassemble chains of limited sizes, limiting their application. Furthermore, during general disassembly, the numerous and small chain pins are prone to loss or misplacement. Severe wear or carbon buildup can cause disassembly difficulties and even lead to parts flying during disassembly due to excessive force.

[0004] Therefore, in order to further optimize the efficiency of chain disassembly and improve its stability and convenience, a chain disassembly device is needed. Utility Model Content

[0005] The purpose of this utility model is to provide an adjustable and retractable chain disassembly device, which consists of a slot box, a workbench, a clamp, and a support arm, all of which are made of cast iron.

[0006] The slot box is a rectangular structure with a certain thickness, and the top and front of the slot box are open. A wire mesh door is installed on the front of the slot box. The wire mesh door has a rectangular frame, and iron wires are welded horizontally and vertically to the inside of the rectangular frame to form multiple rectangular grids. The wire mesh door formed by the rectangular grid can ensure that the chain pins pushed out by the top rod fall into the slot box for storage, while preventing the chain pins from flying out or sliding out of the slot box.

[0007] Four anti-slip pads are provided at the bottom of the slot box, and the four anti-slip pads are evenly distributed at the four corners of the bottom of the slot box.

[0008] The support arm has a "semi-I-shaped" structure, with its bottom end installed at the center of the bottom side of the slot box. The height of the support arm is greater than the sum of the heights of the slot box and the worktable. The top of the support arm extends horizontally to the center above the slot box. A through hole is provided at the top of the support arm, and a push rod is placed in the through hole. A cylindrical block slightly larger than the inner diameter of the through hole is provided on the upper part of the push rod to prevent the push rod from falling off.

[0009] The workbench is mounted on the slot box using slot box bolts; a circular through hole is provided in the center of the workbench, and the position of the circular through hole corresponds to the position of the through hole at the top of the support arm; parallel concave "inverted T-shaped" slide rails are provided on the workbench on the left and right sides of the circular through hole.

[0010] There are two clamps, and the inner surfaces of the two clamps facing each other are curved clamping surfaces. Each clamp has a convex "inverted T-shaped" structure on its bottom surface. The external dimensions of this structure match the internal dimensions of the slide rail, and the distance between the convex "inverted T-shaped" structures is equal to the distance between the two slide rails. Threaded through holes are provided in this structure, penetrating the upper and lower surfaces of the clamp. Clamp fixing bolts are screwed into the threaded through holes from the lower surface to the upper surface of the clamp, and then fixed to the upper surface of the clamp by clamp fixing nuts. By tightening the clamp fixing nuts, the clamps can be fixed to the slide rails. When the two clamps move in the slide rails, their relative distance changes. By adjusting the relative position of the two clamps, the chain can be clamped. Chains of different specifications can also be clamped by adjusting the relative position of the two clamps.

[0011] The working principle and beneficial effects of this utility model are as follows: When using this chain disassembly device, first place the chain on the workbench, then use the clamp to adjust the fixing of the chain through the slide rail, and use the clamp fixing bolt and clamp fixing nut to clamp it. Position the chain pin directly opposite the top rod above and at the center of the circular through hole in the workbench below. Use a small hammer or other striking tool to push the chain pin out through the top rod. The pushed-out pin falls into the slot below. After all the pins of the entire chain have been pushed out, open the mesh door and take out all the pins. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the device described in this utility model;

[0013] Figure 2 These are the front view (a), top view (b), and side view (c) of the device described in this utility model;

[0014] Figure 3 Figure (a) is a right-side perspective view, Figure (b) is a left-side perspective view, and Figure (c) is a bottom view.

[0015] Figure 4This is a schematic diagram of the structure of the worktable of the device described in this utility model, wherein Figure (a) is a top view and Figure (b) is a front view;

[0016] Figure 5 This is a schematic diagram of the structure of the device clamp described in this utility model, wherein Figure (a) is a top view and Figure (b) is a front view;

[0017] Figure 6 This is a front view of the mesh gate of the device described in this utility model;

[0018] Figure 7 This is a perspective view of the top rod of the device described in this utility model;

[0019] Figure 8 This is a perspective view of the slot box bolts of the device described in this utility model;

[0020] Figure 9 This is a perspective view of the clamping bolts of the device described in this utility model;

[0021] Figure 10 This is a perspective view of the clamp fixing nut of the device described in this utility model;

[0022] The names of each part are as follows: top rod 1, support arm 2, clamp fixing bolt 3, workbench 4, slot box 5, mesh door 6, clamp fixing nut 7, clamp 8, slide rail 9, slot box bolt 10, door hinge 11, anti-slip pad 12. Detailed Implementation Plan

[0023] The present invention will now be described in detail through specific implementation schemes.

[0024] Example 1

[0025] like Figures 1-10 As shown. The chain disassembly device consists of a top rod 1, a support arm 2, a clamp fixing bolt 3, a worktable 4, a slot box 5, a mesh door 6, a clamp fixing nut 7, a clamp 8, a slide rail 9, a slot box bolt 10, a door hinge 11, and an anti-slip pad 12.

[0026] Four anti-slip pads 12 are provided at the bottom of the slot box 5, and the four anti-slip pads 12 are evenly distributed at the four corners of the bottom of the slot box 5. The top and front of the slot box 5 are open structures. A "semi-I-shaped" support arm 2 is provided at the middle of the bottom right side of the slot box 5. The upper part of the support arm 2 extends horizontally to the center of the slot box 5 and has a through hole. A top rod 1 is placed in the through hole. A cylindrical block slightly larger than the inner diameter of the through hole is provided on the upper part of the top rod 1 to prevent the top rod 1 from falling. A door hinge 11 is provided on the left inner wall of the front opening of the slot box 5 near the opening position. An extended small plate is provided on the side of the mesh door 6 near the door hinge 11. The surface of the extended small plate is consistent with the surface of the door hinge through hole. After the mesh door is installed, the surface of the small plate coincides with the surface of the door hinge through hole. A cylindrical pin is provided downward on the extended plate. The outer diameter of the cylindrical pin is slightly smaller than the inner diameter of the door hinge 11 to facilitate the rotation of the mesh door 6. The workbench 4 is connected to the slot box 5 by slot box bolts 10. A circular through hole is provided in the center of the workbench 4 to allow the disassembled chain to be inserted. The pins fall into the slot box for easy storage. Four slot box bolts 10 evenly connect the workbench 4 and the four corners of the slot box 5 to ensure even force distribution. There are two clamps 8. The inner sides of the two clamps facing each other are curved clamping surfaces. The bottom surface of each clamp 8 is provided with two outwardly protruding "inverted T-shaped" structures. The external dimensions of the structures match the internal dimensions of the slide rails 9. The distance between the two outwardly protruding "inverted T-shaped" structures is equal to the distance between the two slide rails 9. Threaded through holes are provided in the structure, penetrating the upper and lower surfaces of the clamp 8. Clamp fixing bolts are screwed into the threaded through holes from the lower surface to the upper surface of the clamp 8, and fixed to the upper surface of the clamp 8 by clamp fixing nuts. By tightening the clamp fixing nuts, the clamp 8 can be fixed to the slide rails 9. When the two clamps 8 move in the slide rails 9, their relative distance changes. By adjusting the relative position of the two clamps 8, the chain can be clamped. Chains of different specifications can also be clamped by adjusting the relative position of the two clamps 8.

[0027] The function of slot box 5 is as follows: During operation, when the fixing pin in the chain is pushed out using the push rod 1, the fixing pin can fall directly into slot box 5, preventing it from being lost during operation and preventing it from flying around and causing injury; slot box bolts 10 are designed to facilitate the assembly of workbench 4 and slot box 5; two slide rails 9 are designed on workbench 4, and clamps 8 are assembled through slide rails 9. By adjusting the movement of the two clamps 8 along slide rails 9, chains of different sizes and models can be clamped and fixed; rubber pads are installed on the curved clamping surfaces of the two clamps 8 to protect the chain during the clamping and disassembly process and prevent wear.

[0028] In the specific implementation process, the mesh door 6 is closed, the chain is placed on the workbench, the center of the chain pin is positioned at the center of the slot box hole and perpendicular to the top rod above, and the chain is clamped with clamp 8. A hammer or other striking tool is used to disassemble the chain pin, allowing it to fall into the slot box. During chain disassembly, clamp 8 on the workbench 4 is used to clamp chains of different specifications. The positions of the two clamps 8 are adjusted using the slide rail 9 on the workbench 4, solving the drawback that one set of disassembly tools can only disassemble one type of chain. Since there are many pins to be disassembled on a single chain, this invention can push the pins pushed out by the top rod into the slot box for storage, avoiding the problem of pins flying out randomly and the problem of loss due to inconvenient storage after disassembly. A mesh door is also designed to close the slot box and facilitate retrieval. Therefore, this invention features the ability to disassemble chains of multiple specifications, a high safety factor, and good preservation of parts.

Claims

1. An adjustable and retractable chain disassembly device, characterized in that: The device consists of a slot box (5), a workbench (4), a clamp (8), and a support arm (2). The slot box (5) is a rectangular structure with a certain thickness, and the top and front of the slot box (5) are open. A mesh door (6) is provided on the front of the slot box (5). The support arm (2) is a "semi-I-shaped" structure, with its bottom end installed at the center of the bottom side of the slot box (5). The height of the support arm (2) is greater than the sum of the heights of the slot box (5) and the workbench (4). The top of the support arm (2) extends horizontally to the center above the slot box (5). A through hole is provided at the top of the support arm (2), and a push rod (1) is placed in the through hole. A cylindrical block slightly larger than the inner diameter of the through hole is provided on the upper part of the push rod (1). The workbench (4) is installed on the slot box (5), and a circular through hole is provided in the center of the workbench (4). The position of the hole corresponds to the position of the through hole at the top of the support arm (2). Two parallel concave "inverted T-shaped" slide rails (9) are provided on the worktables (4) on the left and right sides of the circular through hole. There are two clamps (8). The inner sides of the two clamps facing each other are curved clamping surfaces. The bottom surface of each clamp (8) is provided with two convex "inverted T-shaped" structures. The external dimensions of the structure match the internal dimensions of the slide rail (9). The distance between the two convex "inverted T-shaped" structures is equal to the distance between the two slide rails (9). Threaded through holes are provided in the two convex "inverted T-shaped" structures, penetrating the upper and lower surfaces of the clamp (8). The clamp fixing bolts (3) are screwed into the upper surface of the clamp (8) from the lower surface to the upper surface in the threaded through holes and fixed to the upper surface of the clamp (8) by the clamp fixing nuts (7).

2. The adjustable-size and retractable chain disassembly device as described in claim 1, characterized in that: Four anti-slip pads (12) are provided at the bottom of the slot box (5). The four anti-slip pads (12) are evenly distributed at the bottom of the slot box (5) near the four corners.

3. The adjustable-size and retractable chain disassembly device as described in claim 1, characterized in that: The workbench (4) is mounted on the slot box (5) by four slot box bolts (10).

4. The adjustable-size and retractable chain disassembly device as described in claim 1, characterized in that: The mesh door (6) has a rectangular frame, and then the iron wires are welded horizontally and vertically to the inside of the rectangular frame to form a rectangular mesh by welding process.

5. The adjustable-size and retractable chain disassembly device as described in claim 1, characterized in that: A door hinge (11) is provided on the left inner wall of the front opening of the slot box (5) near the opening position. An extended small plate is provided on the side of the mesh door (6) near the door hinge (11). A cylindrical pin is provided downward on the extended small plate. The outer diameter of the cylindrical pin is slightly smaller than the inner diameter of the door hinge (11).

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