Foldable large shackle dismounting device

Abstract

The invention relates to the technical field of large shackles, in particular to a foldable large shackle dismounting device which comprises a shackle structure, a mounting structure, a driving structure, a telescopic structure, a transmission structure, a dismounting structure and a guide structure. The hydraulic cylinder drives the connecting block to move upwards through the pushing rod, the connecting block drives the rotating block to rotate with the deflection rod as the axis through the sliding rod, the rotating block drives the deflection block to rotate, the deflection block drives the sliding block to slide on the outer wall of the guide rod through the connecting block, and the sliding block slides on the outer wall of the guide rod under the meshing acting force of the straight gear and the guide rack during sliding. The transmission rod drives the main bevel gear to rotate, the main bevel gear drives the dismounting rod to rotate through the auxiliary bevel gear, the dismounting rod drives the dismounting pipe to rotate, the dismounting pipe drives the bolt to rotate and advance through the inserting block, the rotating bolt penetrates through the shackle body and is inserted into the nut to complete the mounting work of the shackle, and on the contrary, the dismounting work of the shackle is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of large shackles, in particular to a foldable large shackle disassembly device. Background Art

[0002] The connecting ring, also known as the shackle, is a commonly used connecting device in mechanical engineering. Common shackles in engineering include European large bow shackles, European large DEE shackles, round head shackles, square head shackles, D-shaped shackles and many other forms. In rescue operations, shackles are usually called connecting rings. They are necessary connecting equipment between wire ropes, between wire ropes and vehicle bodies, between wire ropes and pulleys, and between rigid traction frames and vehicle bodies. Depending on the purpose, the form of the connecting ring is different. Commonly used ones include D-shaped connecting rings, double D-shaped connecting rings, connecting sleeves, etc. In addition, the connecting ring also refers to a component of fishing gear, which is a very small metal ring that connects the brain line and the main line.

[0003] At present, most shackles on the market are composed of an integral U-shaped shackle body and a latch. As the weight of the hoisted object increases, the lifting point of the hoisted object also increases. Similarly, the size and weight of the shackle are also increasing. Therefore, in the process of disassembling and assembling the shackle, it is often unrealistic to use manpower to directly load and unload. Therefore, our company has developed a disassembly device for large shackles to solve the difficulty of manual loading and unloading of large shackles. Summary of the invention

[0004] The purpose of the present invention is to provide a foldable large-scale shackle disassembly device to solve the problem of inconvenience in disassembling large-scale shackles in the above-mentioned background technology. To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a foldable large-scale shackle disassembly device, comprising a shackle structure, a mounting structure, a driving structure, a telescopic structure, a transmission structure, a disassembly structure and a guide structure, wherein the outer wall of the left column of the shackle structure is fixedly welded to the inner wall of the mounting structure, the bottom of the mounting structure is fixedly connected to the top of the driving structure, and the inner wall of the driving structure is rotatably connected to the outer wall of the telescopic structure near the bottom.

[0005] The inner wall of the telescopic structure near the top is rotatably connected to the outer wall of the transmission structure, and the transmission structure is composed of a connecting block, a fixed block, a sliding block, a supporting block, a transmission rod, a spur gear and a main bevel gear. The outer wall of the transmission structure is meshed and connected with the outer wall of the disassembly structure. The disassembly structure includes a secondary bevel gear, a disassembly rod, a disassembly tube, a disassembly block, a rotating rod, a locking block, a plug-in block and a reset spring. The inner wall of the disassembly structure is movably plugged into the outer wall of the shackle structure, and the outer wall of the transmission structure is meshed and connected with the outer wall of the guide structure. The bottom of the guide structure is fixedly connected to the top of the mounting structure.

[0006] Preferably, the shackle structure consists of a shackle body, a latch, a fixing cap and a nut, the inner wall of the shackle body near the top left column is movably plugged into the outer wall of the latch, and the top of the right column of the shackle body is movably sleeved with the inner bottom wall of the fixing cap, the bottom of the fixing cap is fixedly connected to the top of the nut, and the center line of the nut coincides with the center line of the plug-in interface of the right column of the shackle body.

[0007] Preferably, the mounting structure includes two mounting plates, two connecting strips and two guide grooves, the outer side walls of the two mounting plates are fixedly connected by two connecting strips, and the inner walls of the two mounting plates are fixedly welded to the outer wall of the left column of the shackle body, guide grooves for sliding of the driving structure are opened on opposite sides of the two connecting strips, and connecting rods are provided on opposite sides of the two connecting strips above the guide grooves.

[0008] Preferably, the driving structure consists of a hydraulic cylinder, a push rod, a connecting block and a sliding rod, the top of the hydraulic cylinder is fixedly connected to the bottom of the upper mounting plate, and the output end of the hydraulic cylinder is fixedly connected to one end of the push rod, the other end of the push rod is fixedly connected to the top of the connecting block, and the inner wall of the connecting block is rotatably connected to the outer wall of the sliding rod, and the outer wall of the sliding rod is slidably connected to the inner wall of the guide groove.

[0009] Preferably, the telescopic structure includes a deflection block, a deflection rod and a rotating block, the inner wall of the deflection block near the top is rotatably connected to the outer wall of the connecting rod, and the inner wall of the deflection block is rotatably connected to the outer wall of the deflection rod, the deflection block is rotatably connected to the rotating block through the deflection rod, and the inner wall of the rotating block near the bottom is rotatably connected to the outer wall of the sliding rod.

[0010] Preferably, the front sides of the connecting block near the top and the bottom are provided with connecting rods, and the connecting block is rotatably connected to the inner wall of the rotating block near the top through the connecting rod near the bottom, the connecting block is rotatably connected to the inner wall of the fixed block through the connecting rod near the top, and the right side of the fixed block is fixedly connected to the left side of the sliding block near the top, the bottom of the sliding block is provided with a slot for sliding the guide structure, and the back side of the sliding block is fixedly connected to the front side of the supporting block, the inner wall of the supporting block near the right side is rotatably connected to the outer wall of the transmission rod, and the outer wall of the transmission rod near the back end is clamped and connected with the inner wall of the spur gear, the outer wall of the spur gear is meshed and connected with the outer wall of the guide structure, and the outer wall of the transmission rod near the front end is clamped and connected with the inner wall of the main bevel gear, and the outer wall of the main bevel gear is meshed and connected with the outer wall of the disassembly structure.

[0011] Preferably, the outer wall of the secondary bevel gear is meshed with the outer wall of the main bevel gear, and the inner wall of the secondary bevel gear is slidably plugged into the outer wall of the disassembly rod, one end of the disassembly rod is rotatably connected to the inner side of the right side of the sliding block, and the other end of the disassembly rod is fixedly connected to one end of the disassembly tube, the outer wall of the disassembly tube is fixedly connected to the outer wall of the disassembly block, and the inner wall of the disassembly block is rotatably connected to the outer wall of the rotating rod, both ends of the rotating rod are fixedly connected to the inner wall of the locking block, and the outer wall of one side of the locking block is fixedly connected to one side of the plug-in block, the middle part of the locking block near one side of the plug-in block is fixedly connected to one end of the reset spring, and the other end of the reset spring is fixedly connected to the outer wall of the disassembly tube.

[0012] Preferably, the guide structure consists of a guide block, a guide rod and a guide rack, the bottom of the guide block is fixedly connected to the top of the upper mounting plate, and the left side of the guide block near the top is fixedly connected to the right side of the guide rod, and the outer wall of the guide rod is slidably connected to the inner wall of the slot, the top of the guide block near the back side is fixedly connected to the bottom of the guide rack, and the outer wall of the guide rack is meshingly connected to the outer wall of the spur gear.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the present invention, through the mutual cooperation of the driving structure, the telescopic structure, the transmission structure and the disassembly structure, the hydraulic cylinder drives the connecting block to move upward through the pushing rod, the connecting block drives the rotating block to rotate with the deflection rod as the axis through the sliding rod, the rotating block drives the deflection block to rotate, the deflection block drives the sliding block to slide on the outer wall of the guide rod through the connecting block, when the sliding block slides, the transmission rod drives the main bevel gear to rotate under the meshing force of the spur gear and the guide rack, the main bevel gear drives the disassembly rod to rotate through the secondary bevel gear, the disassembly rod drives the disassembly tube to rotate, the disassembly tube drives the pin to rotate forward through the plug-in block, the rotating pin penetrates the shackle body and is inserted into the nut to complete the installation of the shackle, and vice versa, it is the disassembly of the shackle.

[0015] In the present invention, the shackle structure and the disassembly structure are used in coordination with each other, the pin is inserted into the disassembly tube, and the engaging block drives the plug-in block to be inserted into the interior of the pin under the telescopic force of the reset spring, so that the disassembly tube can drive the pin to rotate, and at the same time, the pin can be prevented from being separated from the shackle body during the installation of the shackle, which brings convenience to people's use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 is a cross-sectional view of the present invention;

[0018] Figure 3 An exploded view of the present invention;

[0019] Figure 4 An exploded view of the transmission structure of the present invention;

[0020] Figure 5 An exploded view of the disassembly structure of the present invention;

[0021] Figure 6 It is an exploded view of the mounting structure, driving structure and guiding structure of the present invention.

[0022] In the figure: 1. shackle structure; 101. shackle body; 102. latch; 103. fixing cap; 104. nut; 2. mounting structure; 201. mounting plate; 202. connecting strip; 203. guide groove; 3. driving structure; 301. hydraulic cylinder; 302. push rod; 303. connecting block; 304. sliding rod; 4. telescopic structure; 401. deflection block; 402. deflection rod; 403. rotating block; 5. transmission structure; 501. connection Block; 502, fixed block; 503, sliding block; 504, supporting block; 505, transmission rod; 506, spur gear; 507, main bevel gear; 6, disassembly structure; 601, auxiliary bevel gear; 602, disassembly rod; 603, disassembly tube; 604, disassembly block; 605, rotating rod; 606, engaging block; 607, plug-in block; 608, reset spring; 7, guide structure; 701, guide block; 702, guide rod; 703, guide rack. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figures 1 to 6 The present invention provides a technical solution: a foldable large-scale shackle disassembly device, comprising a shackle structure 1, a mounting structure 2, a driving structure 3, a telescopic structure 4, a transmission structure 5, a disassembly structure 6 and a guide structure 7, the outer wall of the left column of the shackle structure 1 is fixedly welded to the inner wall of the mounting structure 2, the bottom of the mounting structure 2 is fixedly connected to the top of the driving structure 3, and the inner wall of the driving structure 3 is rotatably connected to the outer wall of the telescopic structure 4 near the bottom.

[0025] The inner wall of the telescopic structure 4 near the top is rotatably connected to the outer wall of the transmission structure 5. The transmission structure 5 is composed of a connecting block 501, a fixed block 502, a sliding block 503, a supporting block 504, a transmission rod 505, a spur gear 506 and a main bevel gear 507. The outer wall of the transmission structure 5 is meshedly connected with the outer wall of the disassembly structure 6. The disassembly structure 6 includes a secondary bevel gear 601, a disassembly rod 602, a disassembly tube 603, a disassembly block 604, a rotating rod 605, a locking block 606, a plug-in block 607 and a reset spring 608. The inner wall of the disassembly structure 6 is movably plugged into the outer wall of the shackle structure 1, and the outer wall of the transmission structure 5 is meshedly connected with the outer wall of the guide structure 7. The bottom of the guide structure 7 is fixedly connected to the top of the mounting structure 2.

[0026] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the shackle structure 1 consists of a shackle body 101, a latch 102, a fixing cap 103 and a nut 104. The inner wall of the shackle body 101 near the top left column is movably plugged into the outer wall of the latch 102, and the top of the right column of the shackle body 101 is movably sleeved with the inner bottom wall of the fixing cap 103, the bottom of the fixing cap 103 is fixedly connected to the top of the nut 104, and the center line of the nut 104 coincides with the center line of the plug-in interface of the right column of the shackle body 101.

[0027] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the mounting structure 2 includes two mounting plates 201, two connecting strips 202 and two guide grooves 203. The outer walls of the two mounting plates 201 are fixedly connected by the two connecting strips 202, and the inner walls of the two mounting plates 201 are fixedly welded to the outer wall of the left column of the shackle body 101. The opposite sides of the two connecting strips 202 are provided with guide grooves 203 for the driving structure 3 to slide, and connecting rods are provided on the opposite sides of the two connecting strips 202 above the guide grooves 203.

[0028] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the driving structure 3 is composed of a hydraulic cylinder 301, a pushing rod 302, a connecting block 303 and a sliding rod 304. The top of the hydraulic cylinder 301 is fixedly connected to the bottom of the upper mounting plate 201, and the output end of the hydraulic cylinder 301 is fixedly connected to one end of the pushing rod 302, the other end of the pushing rod 302 is fixedly connected to the top of the connecting block 303, and the inner wall of the connecting block 303 is rotatably connected to the outer wall of the sliding rod 304, and the outer wall of the sliding rod 304 is slidably connected to the inner wall of the guide groove 203.

[0029] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the telescopic structure 4 includes a deflection block 401, a deflection rod 402 and a rotating block 403. The inner wall of the deflection block 401 near the top is rotatably connected to the outer wall of the connecting rod, and the inner wall of the deflection block 401 is rotatably connected to the outer wall of the deflection rod 402. The deflection block 401 is rotatably connected to the rotating block 403 through the deflection rod 402, and the inner wall of the rotating block 403 near the bottom is rotatably connected to the outer wall of the sliding rod 304.

[0030] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, connecting rods are provided on the front sides of the top and bottom of the connecting block 501, and the connecting block 501 is rotatably connected to the inner wall of the rotating block 403 near the top through the connecting rod near the bottom, the connecting block 501 is rotatably connected to the inner wall of the fixed block 502 through the connecting rod near the top, and the right side of the fixed block 502 is fixedly connected to the left side of the sliding block 503 near the top, a slot for the sliding of the guide structure 7 is provided at the bottom of the sliding block 503, and the back side of the sliding block 503 is fixedly connected to the front side of the supporting block 504, the inner wall of the supporting block 504 near the right side is rotatably connected to the outer wall of the transmission rod 505, and the outer wall of the transmission rod 505 near the back end is engaged with the inner wall of the spur gear 506, the outer wall of the spur gear 506 is meshed with the outer wall of the guide structure 7, and the outer wall of the transmission rod 505 near the front end is engaged with the inner wall of the main bevel gear 507, and the outer wall of the main bevel gear 507 is meshed with the outer wall of the disassembly structure 6.

[0031] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the outer wall of the secondary bevel gear 601 is meshed with the outer wall of the main bevel gear 507, and the inner wall of the secondary bevel gear 601 is slidably plugged with the outer wall of the disassembly rod 602, one end of the disassembly rod 602 is rotatably connected to the inside of the right side of the sliding block 503, and the other end of the disassembly rod 602 is fixedly connected to one end of the disassembly tube 603, the outer wall of the disassembly tube 603 is fixedly connected to the outer wall of the disassembly block 604, and the inner wall of the disassembly block 604 is rotatably connected to the outer wall of the rotating rod 605, both ends of the rotating rod 605 are fixedly connected to the inner wall of the locking block 606, and the outer wall of one side of the locking block 606 is fixedly connected to one side of the plug-in block 607, the middle part of the locking block 606 near the side of the plug-in block 607 is fixedly connected to one end of the return spring 608, and the other end of the return spring 608 is fixedly connected to the outer wall of the disassembly tube 603.

[0032] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the guide structure 7 is composed of a guide block 701, a guide rod 702 and a guide rack 703. The bottom of the guide block 701 is fixedly connected to the top of the upper mounting plate 201, and the left side of the guide block 701 near the top is fixedly connected to the right side of the guide rod 702, and the outer wall of the guide rod 702 is slidably connected to the inner wall of the slot, the top of the guide block 701 near the back is fixedly connected to the bottom of the guide rack 703, and the outer wall of the guide rack 703 is meshingly connected to the outer wall of the spur gear 506.

[0033] The use method and advantages of the present invention: When the foldable large shackle disassembly device is in operation, the working process is as follows:

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the latch 102 is inserted into the disassembly tube 603. Under the telescopic force of the return spring 608, the engaging block 606 drives the plugging block 607 to be inserted into the interior of the latch 102. The hydraulic cylinder 301 is started. The hydraulic cylinder 301 drives the connecting block 303 to move upward through the push rod 302. The connecting block 303 drives the rotating block 403 to rotate around the deflection rod 402 as the axis through the sliding rod 304. The rotating block 403 drives the deflection block 401 to rotate. The deflection block 401 drives the sliding block 503 on the guide rod 70 through the connecting block 501. 2, when the sliding block 503 slides, the transmission rod 505 drives the main bevel gear 507 to rotate under the meshing force of the spur gear 506 and the guide rack 703, the main bevel gear 507 drives the disassembly rod 602 to rotate through the secondary bevel gear 601, the disassembly rod 602 drives the disassembly tube 603 to rotate, the disassembly tube 603 drives the latch 102 to rotate forward through the plug block 607, the rotating latch 102 penetrates the shackle body 101 and is inserted into the nut 104 to complete the installation of the shackle, otherwise, it is the disassembly of the shackle.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A foldable large-scale shackle disassembly device, comprising a shackle structure (1), a mounting structure (2), a driving structure (3), a telescopic structure (4), a transmission structure (5), a disassembly structure (6) and a guide structure (7), characterized in that: The outer wall of the left column of the shackle structure (1) is fixedly welded to the inner wall of the mounting structure (2), the bottom of the mounting structure (2) is fixedly connected to the top of the driving structure (3), and the inner wall of the driving structure (3) is rotatably connected to the outer wall of the telescopic structure (4) near the bottom; The inner wall of the telescopic structure (4) near the top is rotatably connected to the outer wall of the transmission structure (5); the transmission structure (5) is composed of a connecting block (501), a fixing block (502), a sliding block (503), a supporting block (504), a transmission rod (505), a spur gear (506) and a main bevel gear (507); the outer wall of the transmission structure (5) is meshingly connected to the outer wall of the disassembly structure (6); the disassembly structure (6) comprises a secondary bevel gear (601), a disassembly rod (602), a disassembly tube (603), a disassembly block (604), a rotating rod (605), a locking block (606), a plug-in block (607) and a reset spring (608); the inner wall of the disassembly structure (6) is movably plugged into the outer wall of the shackle structure (1); the outer wall of the transmission structure (5) is meshingly connected to the outer wall of the guide structure (7); the bottom of the guide structure (7) is fixedly connected to the top of the mounting structure (2).

2. A foldable large shackle disassembly device according to claim 1, characterized in that: The shackle structure (1) is composed of a shackle body (101), a latch (102), a fixing cap (103) and a nut (104); the inner wall of the left column of the shackle body (101) close to the top is movably plugged into the outer wall of the latch (102), and the top of the right column of the shackle body (101) is movably sleeved into the inner bottom wall of the fixing cap (103); the bottom of the fixing cap (103) is fixedly connected to the top of the nut (104), and the center line of the nut (104) coincides with the center line of the plug-in interface of the right column of the shackle body (101).

3. A foldable large shackle disassembly device according to claim 2, characterized in that: The mounting structure (2) comprises two mounting plates (201), two connecting bars (202) and two guide grooves (203); the outer side walls of the two mounting plates (201) are fixedly connected via the two connecting bars (202), and the inner walls of the two mounting plates (201) are fixedly welded to the outer wall of the left column of the shackle body (101); guide grooves (203) for sliding of the driving structure (3) are provided on opposite sides of the two connecting bars (202), and connecting rods are provided on opposite sides of the two connecting bars (202) above the guide grooves (203).

4. A foldable large shackle disassembly device according to claim 3, characterized in that: The driving structure (3) is composed of a hydraulic cylinder (301), a push rod (302), a connecting block (303) and a sliding rod (304); the top of the hydraulic cylinder (301) is fixedly connected to the bottom of the upper mounting plate (201), and the output end of the hydraulic cylinder (301) is fixedly connected to one end of the push rod (302); the other end of the push rod (302) is fixedly connected to the top of the connecting block (303); the inner wall of the connecting block (303) is rotatably connected to the outer wall of the sliding rod (304); and the outer wall of the sliding rod (304) is slidably connected to the inner wall of the guide groove (203).

5. A foldable large shackle disassembly device according to claim 4, characterized in that: The telescopic structure (4) comprises a deflection block (401), a deflection rod (402) and a rotating block (403); the inner wall of the deflection block (401) close to the top is rotatably connected to the outer wall of the connecting rod, and the inner wall of the deflection block (401) is rotatably connected to the outer wall of the deflection rod (402); the deflection block (401) is rotatably connected to the rotating block (403) via the deflection rod (402), and the inner wall of the rotating block (403) close to the bottom is rotatably connected to the outer wall of the sliding rod (304).

6. A foldable large shackle disassembly device according to claim 5, characterized in that: The front sides of the connecting block (501) near the top and the bottom are both provided with connecting rods, and the connecting block (501) is rotatably connected to the inner wall of the rotating block (403) near the top through the connecting rod near the bottom, and the connecting block (501) is rotatably connected to the inner wall of the fixed block (502) through the connecting rod near the top, and the right side of the fixed block (502) is fixedly connected to the left side of the sliding block (503) near the top, and the bottom of the sliding block (503) is provided with a slot for the guide structure (7) to slide, and the back side ... The support block (504) is fixedly connected to the front side thereof; the inner wall of the support block (504) close to the right side is rotatably connected to the outer wall of the transmission rod (505); the outer wall of the transmission rod (505) close to the back side is engaged with the inner wall of the spur gear (506); the outer wall of the spur gear (506) is meshed with the outer wall of the guide structure (7); the outer wall of the transmission rod (505) close to the front side is engaged with the inner wall of the main bevel gear (507); the outer wall of the main bevel gear (507) is meshed with the outer wall of the disassembly structure (6).

7. A foldable large shackle disassembly device according to claim 6, characterized in that: The outer wall of the secondary bevel gear (601) is meshedly connected with the outer wall of the main bevel gear (507), and the inner wall of the secondary bevel gear (601) is slidably plugged with the outer wall of the disassembly rod (602), one end of the disassembly rod (602) is rotatably connected to the inside of the right side of the sliding block (503), and the other end of the disassembly rod (602) is fixedly connected to one end of the disassembly tube (603), the outer wall of the disassembly tube (603) is fixedly connected to the outer wall of the disassembly block (604), and the disassembly block (604) is fixedly connected to the outer wall of the disassembly tube (603). The inner wall of the rotating rod (604) is rotatably connected to the outer wall of the rotating rod (605), both ends of the rotating rod (605) are fixedly connected to the inner wall of the locking block (606), and the outer wall of one side of the locking block (606) is fixedly connected to one side of the plug-in block (607), the middle part of the locking block (606) close to one side of the plug-in block (607) is fixedly connected to one end of the return spring (608), and the other end of the return spring (608) is fixedly connected to the outer wall of the disassembly tube (603).

8. The foldable large shackle disassembly device according to claim 6, characterized in that: The guide structure (7) is composed of a guide block (701), a guide rod (702) and a guide rack (703); the bottom of the guide block (701) is fixedly connected to the top of the upper mounting plate (201), and the left side of the guide block (701) close to the top is fixedly connected to the right side of the guide rod (702), and the outer wall of the guide rod (702) is slidably connected to the inner wall of the slot; the top of the guide block (701) close to the back is fixedly connected to the bottom of the guide rack (703), and the outer wall of the guide rack (703) is meshingly connected to the outer wall of the spur gear (506).

Images