Special lifting mechanism for power and free chain

By designing a special lifting mechanism for the accumulation chain, the cooperation of the telescopic cylinder and the rotating arm, the problem of inconvenient operation of lifting larger workpieces is solved, efficient lifting and conveying workpieces of different sizes is achieved, and the performance of the accumulation chain is improved.

CN120288677AInactive Publication Date: 2025-07-11JIANGSU WOLI MOTOR MFG
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Patent Information

Application Number
CN202510364341.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2025-07-11
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

When lifting large workpieces, manual or equipment operation is inconvenient, especially when the workpiece is high from the ground, it is difficult to achieve efficient upper and lower parts operation.

Method used

A special lifting mechanism for accumulation and laying chains is designed, including a lifting system composed of lifting load plates, upper and lower telescopic frames, telescopic cylinders, hoisting rods, clamping components, etc. Through the cooperation of the telescopic cylinders and rotating arms, the suspension is adjusted and clamped, and the lifting needs of workpieces of different sizes are adapted.

Benefits of technology

It realizes efficient lifting and conveying of workpieces of different sizes, improves the performance of the accumulation chain, is simple to operate, stable and reliable, and meets diverse production needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of power and free chains, and discloses a special lifting mechanism for a power and free chain, which comprises a power and free chain main body and hoisting bearing plates equidistantly mounted on the power and free chain main body, two telescopic cylinders connected between the two up-down telescopic frames are mounted at the bottom of the lifting bearing plate, a mounting plate is mounted between the bottoms of the two up-down telescopic frames, a hollow seat is fixedly mounted at the bottom of the mounting plate, two rotatably adjustable lifting rods are mounted on each of the two sides of the hollow seat, and lifting hook ends are arranged at the ends, away from the hollow seat, of the lifting rods; clamping parts are mounted in the middles of the four hanging rods; according to the lifting mechanism special for the power and free chain, workpieces of different sizes can be effectively lifted and conveyed through up-down telescopic adjustment, and the performance of the lifting mechanism can meet the use requirement for lifting and conveying the workpieces of the power and free chain.
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Description

Technical Field

[0001] The invention belongs to the technical field of accumulation conveyor chains, and specifically relates to a special lifting mechanism for accumulation conveyor chains. Background Art

[0002] An accumulation conveyor chain is a material conveying device widely used in the fields of industrial production and logistics warehousing. It mainly consists of a chain, rollers, guide rails, and a support structure, etc. The design of the accumulation conveyor chain aims to effectively store and transport various types of materials, especially suitable for occasions with high requirements for space utilization. The working principle of the accumulation conveyor chain is based on gravity and friction. Under the push of the chain, materials move and accumulate orderly along the guide rail. Due to its compact structure, it can achieve efficient conveying in a limited space and is commonly used in automated production lines, workshops, warehouses, and other occasions. In addition, the accumulation conveyor chain also has flexibility and adaptability, and can be adjusted according to different types and sizes of materials to meet diverse production needs. It can not only improve the efficiency of material handling, but also reduce labor costs and the error rate during the production process.

[0003] The accumulation conveyor chain is connected by a double-layer track for conveying workpieces. The upper layer is the traction chain track, and the lower layer is the load-bearing track. However, when loading and unloading workpieces on the accumulation conveyor chain line, the load-bearing workpiece together with the lifting device is conveyed to the loading and unloading station. Then, after the workpiece is taken or placed on the lifting device manually or by equipment, the accumulation conveyor chain conveys the lifting device together with the workpiece to the subsequent station. Since the sizes of workpieces are different, small workpieces can be directly loaded and unloaded manually on the ground, while for larger workpieces or when the workpiece is at a relatively high position from the ground, it is inconvenient for manual or machine loading and unloading. Therefore, in view of the above problems, a special lifting mechanism for the accumulation conveyor chain needs to be designed now. Summary of the Invention

[0004] To achieve the above object, the present invention provides the following technical solution: A special lifting mechanism for an accumulation conveyor chain, including an accumulation conveyor chain main body and lifting and load-bearing plates installed on the accumulation conveyor chain main body at equal intervals. Both sides of the bottom of the lifting and load-bearing plate are provided with up-and-down telescopic frames. A telescopic cylinder connected between the two up-and-down telescopic frames is installed at the bottom of the lifting and load-bearing plate. An installation plate is installed between the bottoms of the two up-and-down telescopic frames. A hollow seat is fixedly installed at the bottom of the installation plate. Two rotatable and adjustable suspension rods are installed on both sides of the hollow seat. Hook ends are provided at the ends of the suspension rods away from the hollow seat. Clamping components are installed in the middle of the four suspension rods. Both of the up-and-down telescopic frames include a rotating arm A and a rotating arm B. The rotating arm A and the rotating arm B are both rotatably installed on both sides of the bottom of the lifting and load-bearing plate. Rotating arms C and D are provided at the ends of the rotating arm A and the rotating arm B away from the lifting and load-bearing plate. The rotating arm A and the rotating arm C, as well as the rotating arm B and the rotating arm D, are rotatably connected by connecting shafts. Connecting rods are rotatably connected to the middle parts of the rotating arm A and the rotating arm D. The ends of the two connecting rods away from the rotating arm A and the rotating arm D are respectively rotatably connected to the two connecting shafts.

[0005] Preferably, the rotating arm A and the rotating arm C are located in the same vertical plane, the rotating arm B and the rotating arm D are located in the same vertical plane, and the rotating arm A and the rotating arm B, as well as the rotating arm C and the rotating arm D, are arranged in a staggered manner.

[0006] Preferably, reinforcing rods are fixedly installed between the two connecting shafts opposite to each other on the two up-and-down telescopic frames. Through the arrangement of the rotating arm A, the rotating arm B, the rotating arm C, the rotating arm D, the connecting shafts, the connecting rods and the reinforcing rods, the firmness and safety of the lifting are increased.

[0007] Preferably, a regulating arm for up-and-down telescopic adjustment is fixedly installed between the middles of the two rotating arms B at the bottom of the lifting bearing plate. Two bearings are installed on the surface of the regulating arm, the inner rings of the two bearings are fixedly connected to the regulating arm, and the telescopic ends of the two telescopic cylinders are respectively fixedly connected to the outer rings of the two bearings, so as to effectively adjust the two up-and-down telescopic frames.

[0008] Preferably, two rotating shafts are rotatably connected to the hollow seat, and both of the two rotating shafts penetrate through the hollow seat. The two ends of the two rotating shafts extend to the two sides outside the hollow seat, the upper parts of the four hanging rods are respectively fixedly connected to the two ends of the two rotating shafts, and a first adjusting rod and a second adjusting rod are respectively fixedly connected to the two ends of the two rotating shafts. Linking rods are rotatably connected between the ends of the adjacent first adjusting rod and the second adjusting rod, so as to effectively perform relative or opposite synchronous rotation adjustment on the two hanging rods adjacent to the side of the hollow seat.

[0009] Preferably, two adjusting gears are fixedly installed on the surface of one of the rotating shafts located inside the hollow seat. Tooth blocks are meshed and connected to the lower parts of the two adjusting gears. A slider is fixedly installed between the ends of the two tooth blocks. A middle part of one side of the slider is fixedly installed with an internally threaded tube. A threaded shaft is threadedly connected inside the internally threaded tube. A motor capable of rotating forward and backward is installed at the bottom inside the hollow seat, and an output end of the motor is fixedly connected to one end of the threaded shaft, so as to effectively perform rotation adjustment on the four hanging rods to hook and lift lifting tools of different widths and sizes.

[0010] Preferably, two through grooves are opened at one end of the hollow seat, the two tooth blocks are respectively installed inside the two through grooves, a resisting block located inside the hollow seat is fixedly installed at the bottom of the mounting plate, and the top of the slider is slidably abutted against the resisting block, so as to stably perform adjustment.

[0011] Preferably, all four of the clamping members include mounting blocks fixedly installed on the suspension rods. Convex inner grooves are formed at the bottoms of the mounting blocks. Transverse concave sliding grooves are formed at the lower parts on both sides of the convex inner grooves. Two triangular plates are symmetrically arranged inside the convex inner grooves. Sliding clamping plates slidably installed inside the transverse concave sliding grooves are fixedly installed at the lower parts on both sides of the two triangular plates. Inverted L-shaped clamping blocks are symmetrically and fixedly installed at the bottoms of the two triangular plates.

[0012] Preferably, inclined through grooves are formed on the hypotenuses of the two triangular plates. U-shaped members are slidably installed inside the inclined through grooves. A sliding plate slidably installed inside the convex inner groove is fixedly installed between the ends of the two U-shaped members. An electric telescopic rod extending into the convex inner groove and connected to the middle of the top of the sliding plate is installed in the middle of the mounting block; thereby, clamping and conveying of smaller workpieces can be achieved.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] (1) The special lifting mechanism for the accumulation chain can effectively lift and convey workpieces of different sizes through up-and-down telescopic adjustment. At the same time, the lifting mechanism is equipped with a rotatable and adjustable hoisting structure, which can adjust different sizes of lifting tools and effectively hook and lift the lifting tools. The hoisting structure is equipped with a clamping structure, and the clamping structure can clamp and convey workpieces that are not convenient for hoisting and conveying, thereby effectively improving the service performance of the accumulation chain. Moreover, the special lifting mechanism for the accumulation chain has a simple design, convenient, stable and reliable adjustment operation, and its performance can meet the use requirements of lifting and conveying accumulation chain workpieces;

[0015] (2) When it is necessary to perform contraction adjustment on the two up-and-down telescopic frames, by starting the contraction of the two telescopic cylinders, the two telescopic cylinders pull the adjustment arms to move through the two bearings. The movement of the two adjustment arms will pull the two rotating arms B to rotate. The rotation of the two rotating arms B will drive the rotating arms A, C, and D to rotate and contract through the connecting shaft and the connecting rod, so that the two up-and-down telescopic frames contract and move upward, driving the mounting plate to move upward.

[0016] (3) Rotate the threaded shaft by starting the motor. The rotation of the threaded shaft will cause the internal threaded tube to move on its surface, driving the slider to slide. The movement of the slider will drive the two toothed blocks to move. The movement of the two toothed blocks will drive the two adjusting gears to rotate. The rotation of the two adjusting gears will drive one of the rotating shafts to rotate. The rotation of this rotating shaft will drive the first adjusting rods at both ends to rotate. The rotation of the two first adjusting rods will drive the two second adjusting rods to rotate through the two connecting rods, so that the other rotating shaft rotates synchronously relative to or away from one of the rotating shafts. The relative or opposite rotation of the other rotating shaft and one of the rotating shafts will drive the suspension rods at both ends to rotate, thereby adjusting the distance between the hook ends of two adjacent suspension rods on the side of the hollow seat, enabling the four suspension rods to hook and lift lifting tools of different widths through the hook ends;

[0017] (4) Rotate to drive the suspension rod to drive the clamping component to rotate perpendicular to the ground. Then place the workpiece between the inverted L-shaped clamping blocks. Then control the electric telescopic rod to contract, driving the sliding plate to move upward. The upward movement of the sliding plate will drive the two U-shaped parts to move upward. The upward movement of the two U-shaped parts will cause the two triangular plates to move relative to each other through the inclined through slots and the sliding plates slidably installed inside the horizontal concave sliding grooves. The two triangular plates moving relative to each other will drive the two inverted L-shaped clamping blocks to move relative to each other, thereby clamping and fixing the workpiece with the two inverted L-shaped clamping blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0019] In the drawings:

[0020] Figure 1 is a schematic structural diagram of the special lifting mechanism for the accumulation chain of the present invention;

[0021] Figure 2 is for the present invention Figure 1 partial structure schematic Figure 1 ;

[0022] Figure 3 is for the present invention Figure 1 partial structure schematic Figure 2 ;

[0023] Figure 4 is for the present invention Figure 3 cross-sectional structure schematic diagram;

[0024] Figure 5 is a schematic structural diagram of the clamping component of the present invention;

[0025] Figure 6For the present invention Figure 5 Schematic cross-sectional structure diagram;

[0026] In the figure: 1. Lifting and bearing plate; 2. Up and down telescopic frame; 3. Telescopic cylinder; 4. Mounting plate; 5. Hollow seat; 6. Suspension rod; 7. Clamping component; 8. Rotating arm A; 9. Rotating arm B; 10. Rotating arm D; 11. Rotating arm C; 12. Connecting shaft; 13. Connecting rod; 14. Reinforcing rod; 15. Adjusting arm; 16. Bearing; 17. Rotating shaft; 18. First adjusting rod; 19. Second adjusting rod; 20. Linking rod; 21. Adjusting gear; 22. Tooth block; 23. Slide block; 24. Inner threaded tube; 25. Threaded shaft; 26. Motor; 27. Through groove; 28. Block; 29. Mounting block; 30. Convex inner groove; 31. Horizontal concave sliding groove; 32. Triangular plate; 33. Sliding clamping plate; 34. Inverted L-shaped clamping block; 35. Oblique through groove; 36. U-shaped part; 37. Sliding plate; 38. Electric telescopic rod. Specific implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.

[0028] Embodiment 1, given by Figures 1 to 6 The present invention includes an accumulation chain main body and lifting and bearing plates 1 installed on the accumulation chain main body at equal intervals. Both sides of the bottom of the lifting and bearing plate 1 are provided with up and down telescopic frames 2. The bottom of the lifting and bearing plate 1 is provided with two telescopic cylinders 3 connected between the two up and down telescopic frames 2. Between the bottoms of the two up and down telescopic frames 2, a mounting plate 4 is installed. The bottom of the mounting plate 4 is fixedly installed with a hollow seat 5. Both sides of the hollow seat 5 are provided with two suspension rods 6 that can be rotatably adjusted. The ends of the suspension rods 6 away from the hollow seat 5 are all provided with hook ends. Clamping components 7 are installed in the middle of the four suspension rods 6.

[0029] Both of the two up and down telescopic frames 2 include a rotating arm A 8 and a rotating arm B 9. The rotating arm A 8 and the rotating arm B 9 are both rotatably installed on both sides of the bottom of the lifting and bearing plate 1. The ends of the rotating arm A 8 and the rotating arm B 9 away from the lifting and bearing plate 1 are both provided with a rotating arm C 11 and a rotating arm D 10. Between the rotating arm A 8 and the rotating arm C 11 and between the rotating arm B 9 and the rotating arm D 10, they are all rotatably connected through a connecting shaft 12. The middle parts of the rotating arm A 8 and the rotating arm D 10 are both rotatably connected with a connecting rod 13. The ends of the two connecting rods 13 away from the rotating arm A 8 and the rotating arm D 10 are respectively rotatably connected with the two connecting shafts 12.

[0030] The rotating arm A8 and the rotating arm C11 are located in the same vertical plane, the rotating arm B9 and the rotating arm D10 are located in the same vertical plane, and the rotating arm A8 and the rotating arm B9 as well as the rotating arm C11 and the rotating arm D10 are arranged in a staggered manner. Reinforcing rods 14 are fixedly installed between the two opposite connecting shafts 12 on the two up-and-down telescopic frames 2. Through the settings of the rotating arm A8, the rotating arm B9, the rotating arm C11, the rotating arm D10, the connecting shaft 12, the connecting rod 13 and the reinforcing rod 14, the firmness and safety of the lifting are increased; between the middle parts of the two rotating arms B9 at the bottom of the lifting bearing plate 1, a regulating arm 15 for up-and-down telescopic adjustment is fixedly installed. Two bearings 16 are installed on the surface of the regulating arm 15. The inner rings of the two bearings 16 are fixedly connected to the regulating arm 15, and the telescopic ends of the two telescopic cylinders 3 are respectively fixedly connected to the outer rings of the two bearings 16, so as to effectively adjust the two up-and-down telescopic frames 2.

[0031] Specifically, as shown in the attached drawing, when it is necessary to perform a contraction adjustment on the two up-and-down telescopic frames 2, by starting the contraction of the two telescopic cylinders 3, the two telescopic cylinders 3 pull the regulating arm 15 to move through the two bearings 16. The movement of the two regulating arms 15 will pull the two rotating arms B9 to rotate. The rotation of the two rotating arms B9 will drive the rotating arm A8, the rotating arm C11 and the rotating arm D10 to rotate and contract through the connecting shaft 12 and the connecting rod 13, so that the two up-and-down telescopic frames 2 contract and move upward to drive the mounting plate 4 to move upward.

[0032] This special lifting mechanism for the accumulation chain can effectively lift and convey workpieces of different sizes through up-and-down telescopic adjustment. At the same time, the lifting mechanism is equipped with a rotatable and adjustable hoisting structure. This hoisting structure can adjust for different sizes of lifting tools and effectively hook and lift the lifting tools. And the hoisting structure is equipped with a clamping structure, which can clamp and convey workpieces that are not convenient for hoisting and conveying, thus effectively improving the service performance of the accumulation chain. And this special lifting mechanism for the accumulation chain is simply designed, the adjustment operation is convenient, stable and reliable, and its performance can meet the use requirements of lifting and conveying the accumulation chain workpieces.

[0033] Embodiment 2, on the basis of Embodiment 1, two rotating shafts 17 are rotatably connected to the hollow seat 5, and both of the two rotating shafts 17 penetrate through the hollow seat 5. The two ends of the two rotating shafts 17 extend to the outside of both sides of the hollow seat 5. The upper parts of the four suspension rods 6 are respectively fixedly connected to the two ends of the two rotating shafts 17. The two ends of the two rotating shafts 17 are respectively fixedly connected with a first adjusting rod 18 and a second adjusting rod 19. Linking rods 20 are rotatably connected between the ends of the adjacent first adjusting rod 18 and the second adjusting rod 19, so as to effectively perform relative or opposite synchronous rotation adjustment on the two adjacent suspension rods 6 on the side of the hollow seat 5.

[0034] One of the rotating shafts 17 is fixedly installed with two adjusting gears 21 on the surface inside the hollow seat 5. Both lower parts of the two adjusting gears 21 are meshed and connected with tooth blocks 22. One end between the two tooth blocks 22 is fixedly installed with a slider 23. The middle part on one side of the slider 23 is fixedly installed with an internally threaded pipe 24. The internally threaded pipe 24 is in threaded connection with a threaded shaft 25. A motor 26 capable of rotating forward and backward is installed at the bottom inside the hollow seat 5. The output end of the motor 26 is fixedly connected with one end of the threaded shaft 25, so as to effectively rotate and adjust the four hanging rods 6 to hook and lift slings of different widths and sizes.

[0035] Two through slots 27 are opened at one end of the hollow seat 5. The two tooth blocks 22 are respectively installed inside the two through slots 27. A blocking block 28 located inside the hollow seat 5 is fixedly installed at the bottom of the mounting plate 4. The top of the slider 23 is in sliding contact with the blocking block 28, so as to stably carry out the adjustment;

[0036] Specifically, by starting the motor 26, the threaded shaft 25 rotates. The rotation of the threaded shaft 25 will cause the internally threaded pipe 24 to move on its surface and drive the slider 23 to slide. The movement of the slider 23 will drive the two tooth blocks 22 to move. The movement of the two tooth blocks 22 will drive the two adjusting gears 21 to rotate. The rotation of the two adjusting gears 21 will drive one of the rotating shafts 17 to rotate. The rotation of this rotating shaft 17 will drive the first adjusting rods 18 at both ends thereof to rotate. The rotation of the two first adjusting rods 18 will drive the two second adjusting rods 19 to rotate through the two linkage rods 20, so that the other rotating shaft 17 rotates synchronously relative to or away from one of the rotating shafts 17. The relative or opposite rotation of the other rotating shaft 17 and one of the rotating shafts 17 will drive the hanging rods 6 at both ends thereof to rotate, so as to adjust the distance between the hook ends of two adjacent hanging rods 6 on the side of the hollow seat 5, so that the four hanging rods 6 can hook and lift slings of different widths and sizes through the hook ends;

[0037] After that, the upward movement of the mounting plate 4 drives the hollow seat 5 and the four hanging rods 6 to move upward, so that the four hanging rods 6 lift the sling and the workpiece inside the sling through the hook ends, and then are conveyed and moved through the accumulation chain main body.

[0038] Embodiment 3, on the basis of Embodiment 1, the four clamping components 7 each include a mounting block 29 fixedly installed on the hanging rod 6. Convex inner grooves 30 are opened at the bottoms of the mounting blocks 29. Horizontal concave sliding grooves 31 are opened at the lower parts on both sides of the convex inner grooves 30. Two triangular plates 32 are symmetrically arranged inside the convex inner grooves 30. Sliding clamping plates 33 slidably installed inside the horizontal concave sliding grooves 31 are fixedly installed at the lower parts on both sides of the two triangular plates 32. Inverted L-shaped clamping blocks 34 are symmetrically and fixedly installed at the bottoms of the two triangular plates 32.

[0039] The hypotenuses of the two triangular plates 32 are both provided with inclined through grooves 35, and U-shaped members 36 are slidably installed inside the inclined through grooves 35. A sliding plate 37 that is slidably installed inside the convex inner groove 30 is fixedly installed between the ends of the two U-shaped members 36. An electric telescopic rod 38 that extends to the inside of the convex inner groove 30 and is connected to the middle of the top of the sliding plate 37 is installed in the middle of the mounting block 29; thus, small workpieces can be clamped and conveyed.

[0040] Specifically, by rotating, the suspension rod 6 drives the clamping member 7 to rotate perpendicular to the ground. Then, the workpiece is placed between the inverted L-shaped clamping blocks 34. Then, the electric telescopic rod 38 is controlled to contract, driving the sliding plate 37 to move upward. The upward movement of the sliding plate 37 will drive the two U-shaped members 36 to move upward. The upward movement of the two U-shaped members 36 will cause the two triangular plates 32 to move relative to each other through the inclined through grooves 35 and the sliding clamping plates 33 that are slidably installed inside the horizontal concave sliding grooves 31. The two triangular plates 32 that move relative to each other will drive the two inverted L-shaped clamping blocks 34 to move relative to each other, so that the two inverted L-shaped clamping blocks 34 clamp and fix the workpiece; then, the movement of the accumulation chain main body drives the workpiece to be conveyed and moved.

[0041] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The special lifting mechanism for the accumulation chain, including the main body of the accumulation chain and the lifting and bearing plates (1) installed on the main body of the accumulation chain at equal intervals, is characterized in that: On both sides of the bottom of the lifting bearing plate (1), upper and lower telescopic frames (2) are installed. At the bottom of the lifting bearing plate (1), two telescopic cylinders (3) connected between the two upper and lower telescopic frames (2) are installed. Between the bottoms of the two upper and lower telescopic frames (2), a mounting plate (4) is installed. At the bottom of the mounting plate (4), a hollow seat (5) is fixedly installed. On both sides of the hollow seat (5), two hoisting rods (6) that can be rotationally adjusted are installed. At the ends of the hoisting rods (6) away from the hollow seat (5), hook ends are provided. In the middle of the four hoisting rods (6), clamping components (7) are installed. Both of the upper and lower telescopic frames (2) include a rotating arm A (8) and a rotating arm B (9). The rotating arm A (8) and the rotating arm B (9) are both rotatably installed on both sides of the bottom of the lifting bearing plate (1). At the ends of the rotating arm A (8) and the rotating arm B (9) away from the lifting bearing plate (1), a rotating arm C (11) and a rotating arm D (10) are provided respectively. Between the rotating arm A (8) and the rotating arm C (11) and between the rotating arm B (9) and the rotating arm D (10), they are rotatably connected through a connecting shaft (12). In the middle of the rotating arm A (8) and the rotating arm D (10), connecting rods (13) are rotatably connected respectively. The ends of the two connecting rods (13) away from the rotating arm A (8) and the rotating arm D (10) are rotatably connected to the two connecting shafts (12) respectively.

2. The dedicated lifting mechanism for the accumulation conveyor chain according to claim 2, characterized in that: The rotating arm A (8) and the rotating arm C (11) are in the same vertical plane, the rotating arm B (9) and the rotating arm D (10) are in the same vertical plane, and the rotating arm A (8) and the rotating arm B (9) as well as the rotating arm C (11) and the rotating arm D (10) are arranged in a staggered manner.

3. The special lifting mechanism for the accumulation conveyor chain according to claim 2, characterized in that: Between the two opposite connecting shafts (12) on the two upper and lower telescopic frames (2), reinforcing rods (14) are fixedly installed.

4. The dedicated lifting mechanism for the accumulation conveyor chain according to claim 2, characterized in that: Between the middles of the two rotating arms B (9) at the bottom of the lifting bearing plate (1), an adjusting arm (15) for up and down telescopic adjustment is fixedly installed. On the surface of the adjusting arm (15), two bearings (16) are installed. The inner rings of the two bearings (16) are fixedly connected to the adjusting arm (15). The telescopic ends of the two telescopic cylinders (3) are fixedly connected to the outer rings of the two bearings (16) respectively.

5. The accumulation chain dedicated lifting mechanism according to claim 1, wherein: On the hollow seat (5), two rotating shafts (17) are rotatably connected, and both of the two rotating shafts (17) penetrate through the hollow seat (5). The two ends of the two rotating shafts (17) extend to the outside of both sides of the hollow seat (5). The upper parts of the four hoisting rods (6) are fixedly connected to the two ends of the two rotating shafts (17) respectively. At the two ends of the two rotating shafts (17), a first adjusting rod (18) and a second adjusting rod (19) are fixedly connected respectively. Between the ends of the adjacent first adjusting rod (18) and the second adjusting rod (19), a connecting rod (20) is rotatably connected.

6. The dedicated lifting mechanism for the accumulation conveyor chain according to claim 5, characterized in that: One of the rotating shafts (17) has two adjusting gears (21) fixedly installed on the surface inside the hollow seat (5). Both lower parts of the two adjusting gears (21) are meshed with a tooth block (22). A slider (23) is fixedly installed between one ends of the two tooth blocks (22). A middle part of one side of the slider (23) is fixedly installed with an internally threaded pipe (24). A threaded shaft (25) is in threaded connection with the inside of the internally threaded pipe (24). A motor (26) capable of rotating forward and backward is installed at the bottom inside the hollow seat (5). An output end of the motor (26) is fixedly connected with one end of the threaded shaft (25).

7. The special lifting mechanism for accumulation conveyor chain according to claim 6, wherein: Two through grooves (27) are formed at one end of the hollow seat (5). The two tooth blocks (22) are respectively installed inside the two through grooves (27). A blocking block (28) located inside the hollow seat (5) is fixedly installed at the bottom of the mounting plate (4). The top of the slider (23) is in sliding contact with the blocking block (28).

8. The dedicated lifting mechanism for the accumulation conveyor chain according to claim 1, characterized in that: Each of the four clamping components (7) includes a mounting block (29) fixedly installed on the hanging rod (6). A convex inner groove (30) is formed at the bottom of each mounting block (29). Transverse concave sliding grooves (31) are formed at lower parts on both sides of the convex inner groove (30). Two triangular plates (32) are symmetrically arranged inside the convex inner groove (30). Sliding clamping plates (33) slidably installed inside the transverse concave sliding grooves (31) are fixedly installed at lower parts on both sides of the two triangular plates (32). Inverted L-shaped clamping blocks (34) are symmetrically and fixedly installed at the bottoms of the two triangular plates (32).

9. The accumulation chain special lifting mechanism according to claim 8, characterized in that: Oblique through grooves (35) are formed on the hypotenuses of the two triangular plates (32). U-shaped parts (36) are slidably installed inside the oblique through grooves (35). A sliding plate (37) slidably installed inside the convex inner groove (30) is fixedly installed between the ends of the two U-shaped parts (36). An electric telescopic rod (38) extending into the convex inner groove (30) and connected to the middle part of the top of the sliding plate (37) is installed at the middle part of the mounting block (29).