A crane cable trolley

Abstract

A crane cable trolley belongs to the technical field of cable trolleys. The invention includes a trolley frame, a mounting plate fixedly connected to the bottom of the trolley frame, and a first mounting bracket fixedly connected to the bottom of the mounting plate. The inner wall of the mounting plate is provided with a connecting anti-wear mechanism. A fixing bracket is fixedly connected to the inner wall of the first mounting bracket, and a connecting bracket is fixedly connected to the bottom of the fixing bracket. A rotating shaft is fixedly connected through the side wall of the connecting bracket. Two arc-shaped support plates are rotatably connected to the outer wall of the rotating shaft. Limiting anti-jamming mechanisms are provided on the corresponding side walls between the first mounting bracket and the connecting bracket. The connecting anti-wear mechanism includes two L-shaped plates disposed on the inner wall of the mounting plate. After being pressed and jammed, these plates move relative to each other to connect adjacent trolleys, effectively preventing friction. A synchronous folding mechanism is provided at the bottom of the L-shaped plates. The first connecting blocks on the inner walls of the two arc-shaped support plates shorten their distance through relative displacement, dynamically adjusting the folding angle for cable support, thus combining anti-wear and cable protection functions.

Description

Technical Field

[0001] This invention relates to the field of cable trolley technology, and more particularly to a crane cable trolley. Background Technology

[0002] A crane is a multi-action lifting machine that vertically lifts and horizontally moves heavy objects within a certain range. Its working characteristic is that it performs intermittent movements, that is, the corresponding mechanisms for actions such as picking up, moving, and unloading materials work alternately in a work cycle. Cranes are becoming more and more widely used in the market. Among them, bridge cranes are the most widely used and have the largest number of units in operation. They are spanned across workshops, warehouses, and material yards to lift and transport materials. Both ends are supported by tall cement pillars or metal supports, and their shape resembles a bridge.

[0003] The cable trolley system in a crane is a cable suspension and traction system specifically designed for mobile power supply equipment (such as crane trolleys). It consists of traveling wheels, brackets, and pallets, and is mainly used to safely and flexibly lay and move power supply cables on I-beam rails. Its core function is to achieve linkage between the cable and the mobile equipment through mechanical synchronization, thereby avoiding cable dragging and wear.

[0004] Because the cable length needs to match the distance the crane trolley can move, multiple sets of cable trolleys are required to distribute the cable properly. However, after the crane trolley completes one transport operation, during the process of resetting the crane trolley to the starting point, since there are no limit measures between the cable trolley systems, multiple sets of trolleys will gradually approach and stick together. During this process, collisions and friction will occur between the multiple sets of trolleys. Collisions can easily lead to structural deformation, causing inaccurate trolley positioning, affecting lifting accuracy, and in severe cases, causing the trolleys to derail and become out of control, leading to equipment shutdown. At the same time, the process of the trolleys approaching each other can also cause the cable fixed on the pallet to bend at an excessive angle, resulting in damage to the cable sheath, exposure of the internal wires, and risk of short circuits or leakage. Summary of the Invention

[0005] The purpose of this invention is to solve the problems mentioned in the background art, and to propose a crane cable trolley.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a crane cable trolley, comprising a trolley frame, a mounting plate fixedly connected to the bottom of the trolley frame, and a first mounting bracket fixedly connected to the bottom of the mounting plate, the inner wall of the mounting plate being provided with a connecting anti-wear mechanism, a fixing bracket fixedly connected to the inner wall of the first mounting bracket, a connecting bracket fixedly connected to the bottom of the fixing bracket, and a rotating shaft fixedly connected through the side wall of the connecting bracket, two arc-shaped support plates rotatably connected to the outer wall of the rotating shaft, a limit anti-jamming mechanism being provided on the corresponding side walls between the first mounting bracket and the connecting bracket, and a plurality of pulleys fixedly installed inside the trolley frame.

[0007] The connecting anti-wear mechanism includes two L-shaped plates disposed on the inner wall of the mounting plate. The two L-shaped plates move relative to each other after being squeezed and locked, connecting adjacent trolleys to prevent friction between them.

[0008] The bottom of the L-shaped plate is provided with a synchronous folding mechanism, which includes two corresponding first connecting blocks set on the inner walls of the two arc-shaped support plates. The relative displacement of the two first connecting blocks shortens the distance between them, thereby changing the folding angle of the two arc-shaped support plates for cable support.

[0009] The limiting and anti-jamming mechanism includes a second connecting block disposed on the outer wall of the arc-shaped support plate, which moves as the arc-shaped support plate rotates, thereby always limiting the position of the cable.

[0010] Furthermore, a first spring is fixedly connected between the two L-shaped plates, a slot is provided on the side wall of the L-shaped plate, a block is fixedly connected to the end of the L-shaped plate away from the slot, a protrusion is slidably connected through the inner wall of the block, and a second spring is fixedly connected between the opposite sides of the two protrusions.

[0011] Furthermore, the outer walls of the two L-shaped plates are slidably connected to the inner wall of the mounting plate, the ports of the two adjacent L-shaped plates are arranged in opposite directions, and the outer wall of the protrusion corresponds to the inner wall of the slot.

[0012] Furthermore, the synchronous folding mechanism includes a movable column, the outer wall of which is slidably connected through the interior of the first mounting frame. Two first hinge rods are rotatably connected to the end of the movable column. A fixed plate is fixedly connected to the end of the movable column away from the first hinge rods. Both ends of the fixed plate are rotatably connected to second hinge rods, and the ends of the second hinge rods away from the fixed plate are rotatably connected to the outer wall of the corresponding first connecting block.

[0013] Furthermore, the outer wall of the movable column is slidably connected through the interior of the fixed frame, and the ends of the two first hinge rods away from the movable column are rotatably connected to the bottom of the corresponding L-shaped plate. The outer walls of the two first connecting blocks are fixedly connected to the inner wall of the corresponding arc-shaped support plate.

[0014] Furthermore, the limiting and anti-jamming mechanism includes several second mounting brackets, each with a connecting shaft fixedly connected to its outer wall. The end of the connecting shaft away from the second mounting bracket is fixedly connected to the outer wall of the second connecting block. The outer wall of the second connecting block is fixedly connected to the outer wall of the arc-shaped support plate. The corresponding side walls of the first mounting bracket and the connecting bracket are provided with mounting grooves. The ends of the several second mounting brackets are rotatably connected to the side walls of the corresponding mounting grooves.

[0015] Furthermore, the inner wall of the fixing frame is slidably connected to a reinforcing plate, and the top of the reinforcing plate is rotatably connected to a threaded rod, which is rotatably connected to the inside of the fixing frame through a thread.

[0016] Furthermore, a knob is rotatably connected to the top of the fixing frame, and the knob is rotatably connected to the outer wall of the threaded rod via a thread.

[0017] Compared with existing technologies, the above solution has the following advantages:

[0018] 1. When the two protrusions are compressed, they slide relative to each other into the slot. The protrusions then limit the slot to the inside of the slot. During the next transport, the cable moves the trolleys apart, causing the protrusions to be compressed again. The slot then disengages from the slot, thus canceling the connection between the trolleys. At this point, the two sets of trolleys are connected together by corresponding L-shaped plates. The two sets of trolleys, after being locked in place by the protrusions and slots, form an integral structure. No relative displacement will occur during the subsequent displacement of the trolleys, fundamentally avoiding collisions and shaking. This avoids the risk of collisions or friction when the trolleys are pressed together, which could lead to deformation of the trolley structure and affect the positioning of the trolley. At the same time, it reduces wear and increases the service life of the trolleys.

[0019] 2. The sliding of the L-shaped plate causes the end of the first hinge rod to shift, bringing the other ends of the two second hinge rods closer together. This causes the first connecting block to rotate the corresponding arc-shaped support plate around the pivot. During this process, the angle between the two arc-shaped support plates gradually decreases. At this time, the cable fixed on its surface will droop as the arc-shaped support plate rotates, increasing the space between the arc-shaped support plate and the adjacent set of arc-shaped support plates. This reduces the angle at which the cable is supported and bent, reduces the damage to the cable during the continuous bending process when the crane is running, and improves the service life of the cable.

[0020] 3. During the rotation of the two arc-shaped support plates around the pivot, the outer wall of the arc-shaped support plates will also drive the second connecting block to move synchronously. Then, the distance between the second connecting block and the second mounting bracket will increase, thereby automatically lengthening the connecting shaft. The connection at both ends of the connecting shaft can provide a limit on the cable on the surface of the arc-shaped support plate. By expanding the limit range of the cable's orientation, the risk of the cable easily folding laterally during bending is eliminated. This would cause the folded cable to cause the corresponding trolley to deviate in direction and easily derail, further improving the stability of the crane during use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure proposed in this invention;

[0022] Figure 2 This is a schematic diagram of the transmission structure for connecting the anti-wear mechanism and the arc-shaped support plate proposed in this invention;

[0023] Figure 3 This is a schematic diagram of the structural transmission of the L-shaped plate and movable column proposed in this invention;

[0024] Figure 4 This is a schematic diagram of the internal structure of the L-shaped plate proposed in this invention;

[0025] Figure 5 This is a schematic diagram of the structural connection between the L-shaped plate and the second hinge rod proposed in this invention.

[0026] Figure 6 This is a schematic diagram of the transmission structure of the movable column and connecting shaft proposed in this invention.

[0027] The labels in the attached diagram are as follows: 1. Trolley frame; 2. Mounting plate; 3. First mounting bracket; 4. Connecting anti-wear mechanism; 5. Fixing bracket; 6. Synchronous folding mechanism; 7. Connecting bracket; 8. Rotating shaft; 9. Arc-shaped support plate; 10. Limiting anti-jamming mechanism; 11. Reinforcing plate; 12. Threaded rod; 13. Knob; 14. Pulley; 401. L-shaped plate; 402. First spring; 403. Slot; 404. Locking block; 405. Protrusion; 406. Second spring; 601. Movable column; 602. First hinge rod; 603. Fixing plate; 604. Second hinge rod; 605. First connecting block; 1001. Mounting groove; 1002. Second mounting bracket; 1003. Connecting shaft; 1004. Second connecting block. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] In the description of this invention, it should be understood that the terms "upper," "lower," "top surface," "bottom surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the indicated position or element must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are only used to distinguish an entity or operation from another entity or operation, and do not require or imply any actual relationship, order, or relative importance between these entities or operations.

[0030] Example 1, please refer to Figures 1-4 A crane cable trolley includes a trolley frame 1, a mounting plate 2 fixedly connected to the bottom of the trolley frame 1, and a first mounting bracket 3 fixedly connected to the bottom of the mounting plate 2. A connecting anti-wear mechanism 4 is provided on the inner wall of the mounting plate 2. A fixing bracket 5 is fixedly connected to the inner wall of the first mounting bracket 3. A connecting bracket 7 is fixedly connected to the bottom of the fixing bracket 5. A rotating shaft 8 is fixedly connected through the side wall of the connecting bracket 7. Two arc-shaped support plates 9 are rotatably connected to the outer wall of the rotating shaft 8. A limit anti-jamming mechanism 10 is provided on the corresponding side walls between the first mounting bracket 3 and the connecting bracket 7. A reinforcing plate 11 is slidably connected to the inner wall of the fixing bracket 5. A threaded rod 12 is rotatably connected to the top of the reinforcing plate 11. The threaded rod 12 is rotatably connected to the inside of the fixing bracket 5 through a thread. A knob 13 is rotatably connected to the top of the fixing bracket 5. The knob 13 is rotatably connected to the outer wall of the threaded rod 12 through a thread. Several pulleys 14 are fixedly installed inside the trolley frame 1.

[0031] Furthermore, the anti-wear mechanism 4 includes two L-shaped plates 401 disposed on the inner wall of the mounting plate 2. The two L-shaped plates 401 move relative to each other after being squeezed and locked, connecting adjacent trolleys to prevent friction between them. A first spring 402 is fixedly connected between the two L-shaped plates 401. A slot 403 is provided on the side wall of the L-shaped plate 401. A block 404 is fixedly connected to the end of the L-shaped plate 401 that is away from the slot 403. A protrusion 405 is slidably connected through the inner wall of the block 404. A second spring 406 is fixedly connected between the opposite sides of the two protrusions 405. The outer walls of the two L-shaped plates 401 are slidably connected to the inner wall of the mounting plate 2. The port directions of the two adjacent L-shaped plates 401 are opposite. The outer wall of the protrusion 405 corresponds to the inner wall of the slot 403.

[0032] More specifically, multiple sets of cable trolleys are slidably installed on the I-beam track of the crane. The cables are passed through the interior of the fixing frame 5 of the multiple sets of trolleys, located below the reinforcing plate 11, and then connected to the crane trolley. After the cables are sorted and distributed, the control knob 13 is rotated. Since the threaded rod 12 and the knob 13 are threadedly connected, the rotation of the knob 13 will drive the threaded rod 12 to move downward along the interior of the fixing frame 5. At the same time, the threaded rod 12 will drive the reinforcing plate 11 to slide along the inner wall of the fixing frame 5. Then the bottom of the reinforcing plate 11 will contact the outer wall of the cable and squeeze it, thereby completing the fixation between the trolley and the cable. Since the threaded transmission between the threaded rod 12 and the knob 13 has self-locking properties, the operation is simple while ensuring stability.

[0033] In the process of using a crane to transport heavy objects vertically and horizontally, multiple sets of trolleys need to move on I-beam rails. At the same time, the position distribution of the power supply cable to the crane trolley is controlled. The positions of the multiple sets of trolleys will gradually move away from each other. After a transport is completed, as the crane trolley returns to the starting point, the positions of the multiple sets of trolleys will gradually move closer. During this process, when two adjacent sets of trolleys come into contact.

[0034] First, the L-shaped plate 401 contacts another L-shaped plate 401 in the trolley. Then, its end slides against the plate. Next, the outer wall of the end block 404 slides to the inner wall of the corresponding slot 403. Then, the inner wall of the slot 403 presses against the outer wall of the two protrusions 405 protruding from the surface of the block 404. At this time, the two protrusions 405 slide relative to each other into the block 404 after being pressed. At the same time, the second spring 406 is compressed. When the protrusions 405 have completely slid into the inside of the block 404, the block 404 will quickly enter the inside of the slot 403. Then, the elastic force of the second spring 406 will cause the two protrusions 405 to pop out. At this time, the protrusions 405... 05. The locking block 404 is positioned inside the slot 403. During the next transport, the cable drives the trolleys to move away from each other, allowing the protrusion 405 to be squeezed again. Then, the locking block 404 will disengage from the slot 403, thus canceling the connection between the trolleys. At this time, the two sets of trolleys are connected together by the corresponding L-shaped plates 401. The two sets of trolleys, after being locked by the protrusion 405 and the slot 403, form an integral structure. No relative displacement will occur during the subsequent displacement of the trolleys, fundamentally avoiding collisions and shaking. This avoids the risk of collisions or friction after the trolleys are pressed together, which could lead to deformation of the trolley structure and affect the positioning of the trolley. At the same time, it reduces wear and increases the service life of the trolleys.

[0035] Example 2, please refer to Figures 1-5Based on Embodiment 1, in this embodiment, the bottom of the L-shaped plate 401 is provided with a synchronous folding mechanism 6. The synchronous folding mechanism 6 includes two corresponding first connecting blocks 605 disposed on the inner walls of the two arc-shaped support plates 9. The relative displacement of the two first connecting blocks 605 shortens the distance between them, thereby changing the folding angle of the two arc-shaped support plates 9 for cable support.

[0036] Furthermore, the synchronous folding mechanism 6 includes a movable column 601, the outer wall of which is slidably connected through the interior of the first mounting frame 3. Two first hinge rods 602 are rotatably connected to the end of the movable column 601. A fixing plate 603 is fixedly connected to the end of the movable column 601 away from the first hinge rods 602. A second hinge rod 604 is rotatably connected to both ends of the fixing plate 603. The end of the second hinge rod 604 away from the fixing plate 603 is rotatably connected to the outer wall of the corresponding first connecting block 605. The outer wall of the movable column 601 is slidably connected through the interior of the fixing frame 5. The ends of the two first hinge rods 602 away from the movable column 601 are rotatably connected to the bottom of the corresponding L-shaped plate 401. The outer walls of the two first connecting blocks 605 are fixedly connected to the inner wall of the corresponding arc-shaped support plate 9.

[0037] More specifically, after the two sets of L-shaped plates 401 are connected, the process of multiple sets of trolleys approaching and pressing against each other causes the L-shaped plates 401 on both sides of the first spring 402 to slide closer together along the inner wall of the mounting plate 2. At the same time, the first spring 402 is compressed. During the sliding of the L-shaped plates 401, one end of the corresponding first hinge rod 602 will be moved synchronously. At this time, the driven ends of the two first hinge rods 602 approach each other, causing their other ends to drive the movable column 601 to slide downward along the inside of the first mounting frame 3. At the same time, the movable column 601 will drive the fixed plate 603 at its bottom to move synchronously. Then, the fixed plate 603 will drive the ends of the second hinge rods 604 on both sides. The displacement of the two second hinge rods 604 causes the other ends of the two second hinge rods 604 to approach each other. Then, the corresponding arc-shaped support plate 9 will rotate around the pivot 8 via the first connecting block 605. During the process, the angle formed between the two arc-shaped support plates 9 will gradually decrease. At this time, the cable fixed on its surface will droop down with the rotation of the arc-shaped support plate 9, which will increase the space between the arc-shaped support plate 9 and the adjacent set of arc-shaped support plates 9. This will alleviate the angle of the cable being supported and bent, reduce the damage to the cable during the continuous bending process of the crane, and improve the service life of the cable. At the same time, with the locking connection between the trolleys, the position of the cable will not shift during the bending process.

[0038] Example 3, please refer to Figures 1-6Based on Embodiment 2, in this embodiment, the limiting and anti-jamming mechanism 10 includes a second connecting block 1004 disposed on the outer wall of the arc-shaped support plate 9, which moves by following the rotation of the arc-shaped support plate 9 to always limit the position of the cable;

[0039] Furthermore, the limiting anti-jamming mechanism 10 includes a plurality of second mounting brackets 1002, and a connecting shaft 1003 is fixedly connected to the outer wall of each of the plurality of second mounting brackets 1002. The end of the connecting shaft 1003 away from the second mounting bracket 1002 is fixedly connected to the outer wall of the second connecting block 1004. The outer wall of the second connecting block 1004 is fixedly connected to the outer wall of the arc-shaped support plate 9. The corresponding side walls of the first mounting bracket 3 and the connecting bracket 7 are provided with mounting grooves 1001. The ends of the plurality of second mounting brackets 1002 are rotatably connected to the side walls of the corresponding mounting grooves 1001.

[0040] More specifically, during the rotation of the two arc-shaped support plates 9 around the pivot 8, the outer wall of the arc-shaped support plate 9 will also drive the second connecting block 1004 to move synchronously. At the same time, it will drive the second mounting bracket 1002 to rotate on the inner wall of the mounting groove 1001 through the connecting shaft 1003. Then, the distance between the second connecting block 1004 and the second mounting bracket 1002 will increase, thereby automatically lengthening the length of the connecting shaft 1003. Since the connecting shaft 1003 always connects the arc-shaped support plate 9 and the first mounting bracket 3, it can provide a limit for the cable on the surface of the arc-shaped support plate 9. By expanding the limit range for the orientation of the cable, the risk of the cable easily folding laterally during bending is eliminated. This would cause the folded cable to cause the corresponding trolley to deviate in direction and easily derail, further improving the stability of the crane during use.

[0041] The working principle of this invention is as follows: the cable passes through the interior of the fixing frame 5 of multiple sets of trolleys and is located below the reinforcing plate 11. Then, it is connected to the crane trolley. After the cable is sorted and distributed, the control knob 13 is rotated, which will drive the threaded rod 12 to move downward along the interior of the fixing frame 5. At the same time, the threaded rod 12 will drive the reinforcing plate 11 to slide along the inner wall of the fixing frame 5. Then, the bottom of the reinforcing plate 11 will contact the outer wall of the cable and squeeze it, thereby completing the fixation between the trolley and the cable.

[0042] After a transport is completed, during the process of the crane trolley returning to the starting point, the positions of the multiple sets of trolleys will gradually approach each other. During this process, when two adjacent sets of trolleys come into contact, the L-shaped plate 401 contacts the L-shaped plate 401 in another set of trolleys. Then, their ends will slide together, and the outer wall of the end block 404 will slide to the inner wall of the corresponding slot 403. Then, the inner wall of the slot 403 will press against the outer wall of the two protrusions 405 protruding from the surface of the block 404. At this time, the two protrusions 405 will be pressed into the interior of the block 404. When the protrusion 405 slides completely into the interior of the locking block 404, the locking block 404 will quickly enter the interior of the locking slot 403. Then, the elastic force of the second spring 406 will drive the two protrusions 405 to pop out into the interior of the locking slot 403. At this time, the two sets of trolleys are connected together by the corresponding L-shaped plate 401. The two sets of trolleys after the protrusions 405 and the locking slot 403 are locked together form an integral structure. There will be no relative displacement during the displacement process of the trolleys, which fundamentally avoids collision and shaking, and avoids the risk of collision or friction after the trolleys are pressed together.

[0043] After the two sets of L-shaped plates 401 are connected, the process of multiple sets of trolleys approaching and pressing each other causes the L-shaped plates 401 on both sides of the first spring 402 to slide closer together along the inner wall of the mounting plate 2. During the sliding of the L-shaped plates 401, one end of the corresponding first hinge rod 602 will be moved synchronously. At this time, the driven ends of the two first hinge rods 602 approach each other, causing the other end to drive the movable column 601 to slide downward along the inside of the first mounting frame 3. Then, the fixed plate 603 will drive the other ends of the two second hinge rods 604 to approach each other, and then the corresponding arc-shaped support plate 9 will be driven to rotate around the pivot 8 through the first connecting block 605. During the process, the angle formed between the two arc-shaped support plates 9 will gradually decrease. At this time, the cable fixed on its surface will droop down with the rotation of the arc-shaped support plate 9, making the space between the arc-shaped support plate 9 and the adjacent set of arc-shaped support plates 9 larger, thereby relieving the angle of the cable being supported and bent, reducing the damage to the cable during the continuous bending process of the crane operation, and improving the service life of the cable.

[0044] It should be noted that all the devices in this application are common devices on the market, and can be selected according to the needs of specific use. The circuit connection relationship of each device is a simple series and parallel connection circuit. There is no innovation in the circuit connection part. Those skilled in the art can easily implement it. It belongs to the prior art and will not be described in detail.

[0045] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A crane cable trolley comprising a trolley frame (1), characterised in that: The bottom of the trolley frame (1) is fixedly connected to a mounting plate (2), and the bottom of the mounting plate (2) is fixedly connected to a first mounting bracket (3). The inner wall of the mounting plate (2) is provided with a connecting anti-wear mechanism (4). The inner wall of the first mounting bracket (3) is fixedly connected to a fixing bracket (5). The bottom of the fixing bracket (5) is fixedly connected to a connecting bracket (7), and the side wall of the connecting bracket (7) is fixedly connected to a rotating shaft (8). The outer wall of the rotating shaft (8) is rotatably connected to two arc-shaped support plates (9). The corresponding side walls between the first mounting bracket (3) and the connecting bracket (7) are provided with a limit anti-jamming mechanism (10). The trolley frame (1) is fixedly installed with several pulleys (14). The connecting anti-wear mechanism (4) includes two L-shaped plates (401) disposed on the inner wall of the mounting plate (2). After being squeezed and locked, the two L-shaped plates (401) move relative to each other, connecting adjacent trolleys and preventing friction between them. The bottom of the L-shaped plate (401) is provided with a synchronous folding mechanism (6). The synchronous folding mechanism (6) includes two corresponding first connecting blocks (605) on the inner walls of the two arc-shaped support plates (9). The relative displacement of the two first connecting blocks (605) shortens the distance between them, changing the folding angle of the two arc-shaped support plates (9) for cable support. The limiting and anti-jamming mechanism (10) includes a second connecting block (1004) disposed on the outer wall of the arc-shaped support plate (9), which moves by following the rotation of the arc-shaped support plate (9) to always limit the position of the cable; A first spring (402) is fixedly connected between the two L-shaped plates (401). A slot (403) is provided on the side wall of the L-shaped plate (401). A block (404) is fixedly connected to the end of the L-shaped plate (401) that is away from the slot (403). A protrusion (405) is slidably connected through the inner wall of the block (404). A second spring (406) is fixedly connected between the opposite sides of the two protrusions (405). The outer walls of the two L-shaped plates (401) are slidably connected to the inner wall of the mounting plate (2), and the port directions of the two adjacent L-shaped plates (401) are opposite. The outer wall of the protrusion (405) corresponds to the inner wall of the slot (403). The synchronous folding mechanism (6) includes a movable column (601), the outer wall of which is slidably connected through the interior of the first mounting frame (3). Two first hinge rods (602) are rotatably connected to the end of the movable column (601). A fixing plate (603) is fixedly connected to the end of the movable column (601) that is away from the first hinge rods (602). A second hinge rod (604) is rotatably connected to both ends of the fixing plate (603), and the end of the second hinge rod (604) that is away from the fixing plate (603) is rotatably connected to the outer wall of the corresponding first connecting block (605).

2. A crane cable trolley according to claim 1, characterised in that The outer wall of the movable column (601) is slidably connected through the inside of the fixed frame (5). The ends of the two first hinge rods (602) away from the movable column (601) are rotatably connected to the bottom of the corresponding L-shaped plate (401). The outer walls of the two first connecting blocks (605) are fixedly connected to the inner wall of the corresponding arc-shaped support plate (9).

3. A crane cable socket according to claim 2, characterised in that The limiting anti-jamming mechanism (10) includes several second mounting brackets (1002), and the outer walls of the several second mounting brackets (1002) are fixedly connected to connecting shafts (1003). The end of the connecting shaft (1003) away from the second mounting bracket (1002) is fixedly connected to the outer wall of the second connecting block (1004). The outer wall of the second connecting block (1004) is fixedly connected to the outer wall of the arc-shaped support plate (9). The corresponding side walls of the first mounting bracket (3) and the connecting bracket (7) are provided with mounting grooves (1001). The ends of the several second mounting brackets (1002) are rotatably connected to the side walls of the corresponding mounting grooves (1001).

4. A crane cable trolley according to claim 3, characterized in that, The inner wall of the fixed frame (5) is slidably connected to a reinforcing plate (11), and the top of the reinforcing plate (11) is rotatably connected to a threaded rod (12). The threaded rod (12) is rotatably connected inside the fixed frame (5) by thread.

5. A crane cable trolley according to claim 4, characterized in that, The top of the fixing frame (5) is rotatably connected to a knob (13), and the knob (13) is rotatably connected to the outer wall of the threaded rod (12) by a thread.

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