Cable reeling device

Abstract

The present disclosure relates to the technical field of engineering application equipment, and particularly relates to a cable winding and unwinding device, which comprises a mounting rack, two sides of the mounting rack are provided with a fixed pulley set; two slide rail parts are respectively connected to the two sides of the mounting rack provided with the fixed pulley set; two movable pulley parts are respectively slidably connected to the slide rail parts located on the two sides of the mounting rack; a guide pipe is arranged on the mounting rack, an input end of the guide pipe is horizontally arranged, and an output end of the guide pipe is vertically arranged; a cable is wound on the fixed pulley of the fixed pulley set and the movable pulley of the movable pulley part, and a first end of the cable is vertically arranged downward through the guide pipe; and a first hinge is arranged on the first end of the cable and used for hoisting an object to be hoisted. In this way, the movement direction of the cable is adjusted and the direction of the acting force is changed from horizontal to vertical by arranging the fixed pulley set and the guide pipe, the cable winding and unwinding device is flattened as a whole, the space occupied in the vertical direction is reduced, the winding and unwinding operation is suitable for the limited space in the vertical direction, and the applicability is improved.

Description

Technical Field

[0001] This disclosure relates to the technical field of engineering application equipment, and in particular to a cable retraction device. Background Technology

[0002] In the existing technology, the device for launching and recovering equipment usually adopts a winch mechanism, which requires sufficient vertical space when arranged. It occupies a large vertical space, has poor flexibility, and is difficult to adapt to various usage scenarios.

[0003] Therefore, it is necessary to propose a cable retraction device to at least partially solve the problems existing in the prior art. Summary of the Invention

[0004] This disclosure aims to address at least one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, this disclosure proposes a cable retraction device.

[0006] In view of this, a cable retraction device is provided according to an embodiment of the present disclosure, comprising: Two slide rails are respectively connected to the two sides of the mounting frame where the fixed pulley group is provided; Two movable pulleys are slidably connected to the slide rails located on both sides of the mounting frame; A guide tube is provided on the aforementioned mounting bracket, with its input end set horizontally and its output end set vertically. The cable is coiled around the fixed pulley of the fixed pulley group and the movable pulley of the movable pulley section, and the first end of the cable passes through the guide tube and is set vertically downward. The first hinge is located at the first end of the aforementioned cable and is used to hoist the object to be hoisted. When both movable pulleys move away from the mounting frame, the first end of the cable moves upward to retrieve the object to be lifted; when both movable pulleys move towards the mounting frame, the first end of the cable moves downward to release the object to be lifted.

[0007] In one feasible implementation, the mounting bracket includes: Fixed beams, two of the above-mentioned fixed beams are arranged in parallel; A connecting beam is disposed between the two aforementioned fixed beams, the connecting beam being perpendicular to the aforementioned fixed beams, and the guide tube being inserted into the connecting beam; A frame is mounted on the aforementioned fixed beam, and the two sides of the frame form the mounting structure for the aforementioned fixed pulley block.

[0008] In one feasible implementation, the above-mentioned mounting structure includes: The first frame, one side of which is connected to the side of the frame; The second frame is located below the first frame. One side of the second frame is connected to the side of the frame. The first frame and the second frame are connected to each other to form a mounting part, and the mounting part forms an installation space. First pins, a plurality of the aforementioned first pins are spaced apart in the aforementioned installation space, and each of the aforementioned fixed pulleys of the aforementioned fixed pulley group is rotatably disposed on the aforementioned first pins; A connecting seat is provided on the side of the mounting part, and the slide rail part is mounted on the connecting seat.

[0009] In one feasible implementation, the slide rail portion includes: First slide rail; The second slide rail is located below the first slide rail. The first slide rail and the second slide rail are combined to form the slide rail section, and a slide track is formed between the first slide rail and the second slide rail. The movable pulley section is slidably connected to the slide track.

[0010] In one feasible implementation, the cable take-up and drop device further includes: The drive unit is used to drive the movable pulley unit to slide along the slide rail.

[0011] In one feasible implementation, the drive unit includes: The bearing bracket is located at the end of the second slide rail away from the mounting portion. The motor bracket is located at one end of the second slide rail near the mounting portion. A drive motor is connected to the aforementioned motor bracket; The transmission structure is connected to the output shaft of the drive motor and transmits the power of the drive motor to the movable pulley section so that the movable pulley section slides along the slide rail.

[0012] In one feasible implementation, the above-mentioned transmission structure includes: The lead screw is mounted between the bearing bracket and the motor bracket via a bearing, and the lead screw is connected to the output shaft of the drive motor via a coupling; A lead screw nut is threadedly connected to the lead screw, and the movable pulley is connected to the lead screw nut via a connector.

[0013] In one feasible implementation, the aforementioned movable pulley section includes: The base is connected to the lead screw nut via the aforementioned connector; A slider is disposed on the aforementioned base and slidably connected to the aforementioned slide rail; Multiple movable pulleys are rotatably mounted on the base via second pins; The cover is placed on the aforementioned base.

[0014] In one feasible implementation, the base is formed with a plurality of pulley channels, and each pulley channel is arranged with a plurality of movable pulleys to form a movable pulley group.

[0015] In one feasible implementation, the cable take-up and drop device further includes: The second hinge is located at the second end of the cable and is horizontally positioned.

[0016] Compared to existing technologies, this disclosure offers at least the following advantages: The cable winding and unwinding device provided in this embodiment includes a mounting frame, a fixed pulley assembly, two slide rails, two movable pulleys, a guide tube, a cable, and a first hinge. Two fixed pulley assemblies are provided, each located on one side of the mounting frame. The two slide rails are connected to the two sides of the mounting frame where the fixed pulley assemblies are located. The two movable pulleys are slidably connected to the slide rails on both sides of the mounting frame. The cable can be coiled around the fixed pulleys of the fixed pulley assemblies and the movable pulleys of the movable pulleys. A guide tube is provided at the mounting frame, with its input end horizontal and its output end located below the mounting frame and vertically positioned so that the first end of the cable can pass through the output end of the guide tube. The first hinge is located at the first end of the cable to suspend the object to be suspended. This configuration allows adjustment of the cable winding and unwinding state by adjusting the position of the movable pulleys. Specifically, when both movable pulleys move away from the mounting frame, the first end of the cable moves upward to retrieve the object to be lifted; when both movable pulleys move towards the mounting frame, the first end of the cable moves downward to release the object to be lifted. By incorporating movable pulleys, the cable retraction and deployment movements become more effortless. The fixed pulley system and guide tube adjust the direction of cable movement and change the force direction from horizontal to vertical, thereby achieving an overall flattened cable retraction and deployment device, reducing vertical space occupation, and making it suitable for retraction and deployment operations in limited vertical spaces, thus improving its applicability. Attached Figure Description

[0017] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of exemplary embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this disclosure. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic structural diagram of a cable take-up and take-up device according to an embodiment of the present disclosure, showing one direction. Figure 2 A schematic structural diagram of a cable winding and unwinding device according to an embodiment of this disclosure from another direction; Figure 3This is a schematic structural diagram of the movable pulley section according to one embodiment of the present disclosure; Figure 4 This is a schematic assembly diagram of a fixed pulley block according to an embodiment of the present disclosure; Figure 5 This is a schematic assembly diagram of a drive unit according to one embodiment of the present disclosure.

[0018] in, Figures 1 to 5 The correspondence between the reference numerals and component names in the attached drawings is as follows: 1. Cover, 2. Cable, 3. First frame, 4. Frame, 5. Fixed pulley, 6. First slide rail, 7. Drive motor, 8. Connecting seat, 9. First fixed beam, 10. Guide tube, 11. Connecting beam, 12. Second fixed beam, 13. Second hinge, 14. Bearing bracket, 15. Connector, 16. Lead screw nut, 17. Lead screw, 18. Second slide rail, 19. Motor bracket, 20. Moving pulley, 21. Base, 22. Slider, 23. First hinge, 24. Second frame. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the description of these embodiments is intended to aid in understanding the invention, but does not constitute a limitation thereof. The specific structural and functional details disclosed herein are merely for describing exemplary embodiments of the invention. However, the invention can be embodied in many alternative forms and should not be construed as being limited to the embodiments described herein.

[0020] like Figures 1 to 5 As shown, an embodiment of this disclosure provides a cable reeling device, comprising: a mounting frame with fixed pulley groups on both sides; two slide rails respectively connected to the two sides of the mounting frame where the fixed pulley groups are located; two movable pulleys slidably connected to the slide rails located on both sides of the mounting frame; a guide tube 10 disposed on the mounting frame, the input end of the guide tube 10 being horizontally disposed and the output end being vertically disposed; a cable 2 coiled around the fixed pulley 5 of the fixed pulley group and the movable pulley 20 of the movable pulley group, with the first end of the cable 2 passing through the guide tube 10 and vertically downward; and a first hinge 23 disposed at the first end of the cable 2 for hoisting an object to be hoisted; wherein, when both movable pulleys move away from the mounting frame, the first end of the cable 2 moves upward to reel in the object to be hoisted; when both movable pulleys move closer to the mounting frame, the first end of the cable 2 moves downward to release the object to be hoisted.

[0021] It is understood that the cable winding and unwinding device provided in this embodiment includes a mounting frame, a fixed pulley group, two slide rails, two movable pulleys, a guide tube 10, a cable 2, and a first hinge 23. Two fixed pulley groups are provided, each located on one side of the mounting frame. The two slide rails are respectively connected to the two sides of the mounting frame where the fixed pulley groups are located. The two movable pulleys are slidably connected to the slide rails on both sides of the mounting frame. The cable 2 can be coiled around the fixed pulleys 5 of the fixed pulley groups and the movable pulleys 20 of the movable pulleys. A guide tube 10 is provided at the mounting frame, with its input end horizontally positioned and its output end located below the mounting frame and vertically positioned, allowing the first end of the cable 2 to pass through the vertical output end of the guide tube 10. The first hinge 23 is located at the first end of the cable 2 for hoisting the object to be hoisted. With this configuration, the winding and unwinding state of the cable 2 can be adjusted by adjusting the position of the movable pulleys. Specifically, when both movable pulleys move away from the mounting frame, the first end of cable 2 moves upward to retrieve the object to be lifted; when both movable pulleys move towards the mounting frame, the first end of cable 2 moves downward to release the object to be lifted. By incorporating movable pulleys, the lifting and lowering movements become more effortless. The fixed pulley group and guide tube 10 adjust the direction of cable 2's movement and change the force direction from horizontal to vertical, thereby achieving an overall flattened cable lifting and lowering device, reducing vertical space occupation, and making it suitable for lifting and lowering operations in limited vertical spaces, thus improving its applicability.

[0022] In some examples, such as Figure 1 As shown, the mounting frame includes: a fixed beam, two of which are arranged in parallel; a connecting beam 11, which is disposed between the two fixed beams and is perpendicular to the fixed beams, and a guide tube 10 is inserted into the connecting beam 11; and a frame 4, which is framed on the fixed beams, and the two sides of the frame 4 form the mounting structure of the fixed pulley group.

[0023] Understandably, the mounting frame can be equipped with two fixed beams, namely a first fixed beam 9 and a second fixed beam 12, which are arranged in parallel and connected by a connecting beam 11. A through hole can be provided on the connecting beam 11 to allow the guide tube 10 to be inserted. The guide tube 10 has a bent tube structure so that the input end is horizontal and the output end is vertical. Furthermore, the guide tube 10 can be located in the middle of the connecting beam 11 to ensure balanced force and greater structural stability when hoisting items. The frame 4 is mounted on the fixed beams, improving the overall structural strength while providing mounting positions for the fixed pulley assembly. Specifically, mounting structures can be provided on both sides of the frame 4 to install the fixed pulley assembly.

[0024] In some examples, such as Figure 1 and Figure 4As shown, the above-mentioned installation structure includes: a first frame 3, one side of which is connected to the side of the frame 4; a second frame 24, located below the first frame 3, one side of which is connected to the side of the frame 4, and the first frame 3 and the second frame 24 are interconnected to form an installation part, the installation part forming an installation space; a first pin, a plurality of the first pins are spaced apart in the installation space, and each of the fixed pulleys 5 of the fixed pulley group is rotatably disposed on the first pin; a connecting seat 8, disposed on the side of the installation part, and the slide rail is mounted on the connecting seat 8.

[0025] It is understood that the installation structure may include a first frame 3, a second frame 24, a first pin, and a connecting seat 8. The first frame 3 and the second frame 24 are fixedly connected, with the second frame 24 located below the first frame 3. The combination of the first frame 3 and the second frame 24 forms the installation section, creating an installation space within it. An opening is formed on the side of the installation section facing away from the frame 4, allowing the first pin to be installed vertically into the installation space. Each fixed pulley 5 of the fixed pulley assembly is clearance-fitted with its corresponding first pin, enabling the fixed pulley 5 to rotate. The side of the fixed pulley 5 facing away from the frame 4 extends out of the opening. The cable 2 can be wound around the fixed pulley 5, and the number of fixed pulleys 5 can be set according to the cable 2's winding and unwinding length, adapting to the needs of lifting different objects. The connecting seat 8 is located on the side of the installation section facing away from the frame 4, and is situated in the center of the installation section. Multiple fixed pulleys 5 are located on both sides of the connecting seat 8. The slide rail can be installed onto the frame 4 via the connecting seat 8.

[0026] In some examples, such as Figure 1 and Figure 2 As shown, the slide rail portion includes: a first slide rail 6; and a second slide rail 18 located below the first slide rail 6. The first slide rail 6 and the second slide rail 18 are combined to form the slide rail portion, and a slide track is formed between the first slide rail 6 and the second slide rail 18. The movable pulley portion is slidably connected to the slide track.

[0027] It is understandable that the slide rail section may be provided with a first slide rail 6 and a second slide rail 18. The first slide rail 6 can be connected to the second slide rail 18 by screws. The first slide rail 6 and the second slide rail 18 are combined to form the slide rail section, and a slide track can be formed between the first slide rail 6 and the second slide rail 18. The movable pulley section can slide along the slide track to get closer to or away from the fixed pulley group. The slide track guides the sliding of the movable pulley section to ensure stable and reliable movement. In some examples, such as Figures 1 to 5 As shown, the cable winding and unwinding device further includes a drive unit for driving the movable pulley unit to slide along the slide rail.

[0028] Understandably, the cable reeling device can also be equipped with a drive unit, which provides power to the sliding of the movable pulley unit, so that the movable pulley unit can automatically slide along the slide rail towards or away from the fixed pulley group, thereby improving the degree of automation. When the movable pulley unit slides to the designated position, it can be maintained at the designated position by the power provided by the drive unit, so that the cable reeling device can maintain the hoisted item at the hoisting height and improve stability.

[0029] In some examples, such as Figures 1 to 5 As shown, the drive unit includes: a bearing bracket 14 disposed at one end of the second slide rail 18 away from the mounting portion; a motor bracket 19 disposed at one end of the second slide rail 18 close to the mounting portion; a drive motor 7 connected to the motor bracket 19; and a transmission structure connected to the output shaft of the drive motor 7, through which the power of the drive motor 7 is transmitted to the movable pulley portion so that the movable pulley portion slides along the slide rail.

[0030] Understandably, the drive unit may include a bearing bracket 14, a motor bracket 19, a drive motor 7, and a transmission structure. The bearing bracket 14 is located at the end of the second slide rail 18 furthest from the mounting portion; the motor bracket 19 is located at the end of the second slide rail 18 closest to the mounting portion, and both the bearing bracket 14 and the motor bracket 19 are perpendicular to the second slide rail 18. The transmission structure may be located between the bearing bracket 14 and the motor bracket 19. The drive motor 7 may be located at the motor bracket 19, and the output shaft of the drive motor 7 is connected to the transmission structure to transmit power to it. The movable pulley is connected to the transmission structure, and the transmission structure drives the movable pulley to slide along the slide rail towards or away from the fixed pulley group.

[0031] In some examples, such as Figure 5 As shown, the transmission structure includes: a lead screw 17, which is disposed between the bearing bracket 14 and the motor bracket 19 via a bearing, and the lead screw 17 is connected to the output shaft of the drive motor 7 via a coupling; a lead screw nut 16, which is threadedly connected to the lead screw 17, and the movable pulley is connected to the lead screw nut 16 via a connector 15.

[0032] Understandably, the transmission structure can be a lead screw 17. Specifically, the lead screw 17 can be mounted between the bearing bracket 14 and the motor bracket 19 via a bearing, and one end of the lead screw 17 can be connected to the output shaft of the drive motor 7 via a coupling. The lead screw nut 16 is screwed onto the lead screw 17, and the position of the lead screw nut 16 on the lead screw 17 is adjusted by rotating the lead screw 17, thereby converting the rotation of the lead screw 17 into the linear motion of the lead screw nut 16. The movable pulley part can be connected to the top of the lead screw nut 16 via a connecting piece 15, so that the movable pulley part can slide along the slide rail towards or away from the fixed pulley group through the lead screw nut 16, ensuring stable and reliable transmission.

[0033] In some examples, such as Figure 3 As shown, the movable pulley section includes: a base 21, which is connected to the lead screw nut 16 via the connecting member 15; a slider 22, which is disposed on the base 21 and slidably connected to the slide rail; a plurality of movable pulleys 20, which are rotatably disposed on the base 21 via second pins; and a cover 1, which covers the base 21.

[0034] Understandably, the movable pulley section can be equipped with a base 21, a slider 22, multiple movable pulleys 20, and a cover 1. The base 21 can be connected to the lead screw nut 16 via a connector 15, and multiple mounting positions can be provided on the side of the base 21 away from the connector 15 to mount multiple movable pulleys 20. Specifically, each movable pulley 20 can be mounted to the base 21 via a second pin, with a clearance fit between the movable pulley 20 and the second pin to ensure smooth rotation of the movable pulley 20. The cover 1 covers the base 21 to enclose the internal space of the movable pulley section, improving the protection of the movable pulleys 20. The slider 22 can be a self-lubricating slider 22 to extend its service life and reduce sliding friction. The slider 22 is located at the base 21 and slidably connected to the slide rail. When the lead screw nut 16 moves the base 21, the base 21 slides along the slide rail via the slider 22.

[0035] In some examples, such as Figure 3 As shown, the base 21 has multiple pulley channels, and each pulley channel is arranged with multiple movable pulleys to form a movable pulley group.

[0036] It is understandable that the base 21 can form multiple pulley channels, and each pulley channel can hold a layer of movable pulleys. The number and form of movable pulleys 20 and fixed pulleys 5 can be selected according to the length of cable 2.

[0037] For example, each layer of movable pulley group can be provided with two movable pulleys 20, and a total of two layers of movable pulley groups are provided; each layer of fixed pulley group can be provided with two fixed pulleys 5, and a total of two layers of fixed pulley groups are provided. The number of layers of movable pulley groups and fixed pulley groups on which the cable 2 is wound can be selected according to the requirements to improve applicability.

[0038] In some examples, such as Figure 1 As shown, the cable retraction device further includes a second hinge 13, which is disposed at the second end of the cable 2, and the second hinge 13 is horizontally disposed.

[0039] It is understandable that the cable winding and unwinding device may also be equipped with a second hinge 13. Specifically, the second hinge 13 is located at the second end of the cable 2, and the second hinge 13 is fixedly positioned horizontally to ensure that the second end of the cable 2 is horizontally fixed and to ensure stable winding and unwinding of the cable 2. Furthermore, the first end of the cable 2 may be fixed to the first hinge 23 by vulcanization; the second end of the cable 2 may be fixed to the second hinge 13 by vulcanization.

[0040] It should be understood that the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. Although the terms "first," "second," etc., may be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another. For example, a first unit may be referred to as a second unit, and similarly, a second unit may be referred to as a first unit, without departing from the scope of the exemplary embodiments of the invention.

[0041] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.

[0042] It should be understood that in the description of this invention, the terms "upper," "vertical," "inner," "outer," etc., indicate the orientation or positional relationship as commonly placed when the disclosed product is used, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0043] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0044] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments of the invention. As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” “containing,” and / or “including” as used herein specify the presence of the stated features, integers, steps, operations, units, and / or components, and do not exclude the presence or addition of one or more other features, quantities, steps, operations, units, components, and / or combinations thereof.

[0045] Specific details are provided in the following description to provide a complete understanding of the exemplary embodiments. However, those skilled in the art will understand that the exemplary embodiments can be implemented without these specific details. In other embodiments, well-known processes, structures, and techniques may be omitted in the depiction of non-essential details to avoid obscuring the exemplary embodiments.

[0046] The above are merely specific embodiments of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

[0047] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art.

Claims

1. A cable reeling / unwinding device, characterized in that, include: Mounting frame, with fixed pulley sets on both sides; Two slide rails are respectively connected to the two sides of the mounting frame where the fixed pulley group is provided; Two movable pulleys are slidably connected to the slide rails located on both sides of the mounting frame; A guide tube is provided on the mounting bracket, with the input end of the guide tube being horizontal and the output end being vertical; The cable is coiled around the fixed pulley of the fixed pulley group and the movable pulley of the movable pulley part, and the first end of the cable passes through the guide tube and is set vertically downward; The first hinge is located at the first end of the cable and is used to hoist the object to be hoisted. When both movable pulleys move away from the mounting frame, the first end of the cable moves upward to retrieve the object to be lifted; when both movable pulleys move towards the mounting frame, the first end of the cable moves downward to release the object to be lifted. The mounting bracket includes: Fixed beams, two of which are arranged in parallel; A connecting beam is disposed between the two fixed beams, the connecting beam being perpendicular to the fixed beams, and the guide tube is inserted into the connecting beam; A frame is mounted on the fixed beam, and the two sides of the frame form the mounting structure for the fixed pulley block.

2. The cable winding and unwinding device according to claim 1, characterized in that, The mounting structure includes: A first frame, one side of which is connected to the side of the frame; The second frame is located below the first frame. One side of the second frame is connected to the side of the frame, and the first frame and the second frame are connected to each other to form a mounting part, which forms an installation space. A first pin, a plurality of first pins are spaced apart in the installation space, and each of the fixed pulleys of the fixed pulley group is rotatably disposed on the first pin; A connecting seat is disposed on the side of the mounting part, and the slide rail part is mounted on the connecting seat.

3. The cable winding and unwinding device according to claim 2, characterized in that, The slide rail includes: First slide rail; The second slide rail is located below the first slide rail. The first slide rail and the second slide rail are combined to form the slide rail section, and a slide track is formed between the first slide rail and the second slide rail. The movable pulley section is slidably connected to the slide track.

4. The cable winding and unwinding device according to claim 3, characterized in that, Also includes: A drive unit is used to drive the movable pulley unit to slide along the slide rail.

5. The cable winding and unwinding device according to claim 4, characterized in that, The drive unit includes: A bearing bracket is disposed at the end of the second slide rail away from the mounting portion; A motor bracket is disposed at one end of the second slide rail near the mounting portion; A drive motor is connected to the motor bracket; A transmission structure is connected to the output shaft of the drive motor, and the power of the drive motor is transmitted to the movable pulley part through the transmission structure so that the movable pulley part slides along the slide rail.

6. The cable winding and unwinding device according to claim 5, characterized in that, The transmission structure includes: A lead screw is mounted between the bearing bracket and the motor bracket via a bearing, and the lead screw is connected to the output shaft of the drive motor via a coupling; A lead screw nut is threadedly connected to the lead screw, and the movable pulley is connected to the lead screw nut via a connector.

7. The cable take-up and take-down device according to claim 6, characterized in that, The movable pulley section includes: The base is connected to the lead screw nut via the connector; A slider is disposed on the base and slidably connected to the slide rail; Multiple movable pulleys are rotatably mounted on the base via second pins; A cover is placed on the base.

8. The cable reeling device according to claim 7, characterized in that, The base has multiple pulley channels, and each pulley channel is arranged with multiple movable pulleys to form a movable pulley group.

9. The cable winding and unwinding device according to claim 1, characterized in that, Also includes: A second hinge is disposed at the second end of the cable, and the second hinge is horizontally disposed.

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