Integrated automatic pipeline winding and unwinding device without slip ring

Abstract

The invention discloses a pipeline integrated automatic winding and unwinding device without a slip ring, which comprises a storage assembly, and a power assembly, a conduction assembly and a guide assembly which are mounted in the storage assembly, a pipeline harness is wound and stored in the storage assembly, one end of the pipeline harness is led out to a terminal mobile device through the guide assembly, and the other end of the pipeline harness is led out to the terminal mobile device through the guide assembly. The guiding assembly is connected with the power assembly capable of accumulating elastic potential energy through the conduction assembly, when the terminal mobile device pulls one end of the pipeline harness to move, the end of the pipeline harness is pulled out of the storage assembly, the guiding assembly is driven when the end of the pipeline harness is pulled, the guiding assembly drives the power assembly to rotate through the conduction assembly, and the power assembly accumulates the elastic potential energy. And when the pulling force of the mobile equipment on the pipeline is weakened, the power assembly automatically withdraws the pipeline by means of the accumulated elastic potential energy. The problem that in the prior art, a laser optical fiber, a matched gas and water pipeline and a cable cannot be freely wound and unwound between terminal mobile equipment and an equipment body is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of high-power photoelectric tube harness storage, and in particular relates to an automatic tube harness storage device when a high-power fiber laser is processed in a working area, specifically an integrated automatic tube harness storage device that does not require a slip ring. Background Art

[0002] Fiber lasers are used in more and more engineering scenarios, with higher and higher powers, and tens of thousands of watts of power are becoming more and more common. However, when current fiber lasers need to extend their optical fibers to the working area and need to automatically retract and extend the length, optical fibers cannot use slip ring structures like cables, fluid pipelines, and communication optical fibers. The reason is that high-power fiber lasers have extremely high requirements for beam coupling accuracy. If a slip ring structure is used, there is a risk of burning the equipment. In addition, the laser processing head that accompanies high-power fiber lasers needs to be equipped with water-cooling pipelines, gas pipelines, and power communication cables. The increase in the number of pipelines requires an increase in the number of various slip rings, which increases the failure rate of slip rings and is not conducive to the stability of the system. Summary of the invention

[0003] In view of the above-mentioned problems existing in the prior art, the purpose of the present invention is to provide an integrated automatic pipeline retraction and extension device that does not require a slip ring, thereby solving the problem in the prior art that the laser optical fiber and the supporting air and water pipelines and cables cannot be freely retracted and extended between the terminal mobile device and the equipment body.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A pipeline integrated automatic retracting and releasing device without slip rings comprises a storage assembly and a power assembly, a conduction assembly and a guide assembly installed in the storage assembly. The pipeline bundle is wound and stored in the storage assembly, and one end of the pipeline bundle is led out to a terminal mobile device through the guide assembly. The guide assembly is connected to a power assembly that can accumulate elastic potential energy through the conduction assembly. When the terminal mobile device pulls one end of the pipeline bundle to move, the one end of the pipeline bundle is pulled out from the storage assembly. When one end of the pipeline bundle is pulled, the guide assembly is driven. The guide assembly drives the power assembly to rotate through the conduction assembly. The power assembly accumulates elastic potential energy. When the pulling force of the mobile device on the pipeline is weakened, the power assembly automatically retracts the pipeline by relying on the accumulated elastic potential energy.

[0006] As a further improvement of the above technical solution:

[0007] The storage assembly includes a base plate, a hinge and two enclosures. The base plate is a flat plate, and the enclosure is a circular tube. The two enclosures have different diameters, are coaxially arranged and socketed with each other, and the bottoms of the two enclosures are fixed on the base plate. The cavity between the two enclosures is used to store the pipe bundles that need to be stored and released. The cavity is a storage cavity. The two enclosures are an inner enclosure and an outer enclosure, respectively. The inner diameter of the outer enclosure is larger than the outer diameter of the inner enclosure. The outer enclosure is provided with an opening and a hinge, and the opening is opened and closed by opening and closing the hinge.

[0008] The power assembly is located in the inner enclosure, and provides power for the pipeline harness recovery. The power assembly includes a coil spring, which can store and release elastic potential energy. One end of the coil spring is fixed relative to the base plate, and the other end is connected to the conduction assembly.

[0009] The power assembly also includes a positioning frame and a baffle. The baffle is a circular plate parallel to the base plate. The positioning frame is cylindrical. The top of the positioning frame is fixedly connected to the baffle and the lower end is supported on the base plate. The coil spring is located in the internal cavity of the positioning frame.

[0010] The conduction component includes an axle seat, a connecting shaft, a shaft sleeve and a top cover fixer. The axle seat, the shaft sleeve and the top cover fixer are all sleeved on the connecting shaft. At least one bearing is installed in the axle seat. The connecting shaft is rotatably installed on the axle seat through the bearing. The connecting shaft passes through the axle seat. The shaft sleeve is detachably installed at one end of the connecting shaft. The shaft sleeve and the connecting shaft rotate synchronously. The shaft sleeve is connected to the coil spring. The top cover fixer is connected to the guide component.

[0011] A rotating part is provided at the center of the coil spring. The rotating part is spiral. One end of the rotating part close to the center is connected to the shaft sleeve, and the other end is connected to one end of the inner circle of the coil spring. One end of the outer circle of the coil spring is fixed relative to the base plate.

[0012] The guide assembly includes a top cover, a bracket, and a guide wheel. The top cover is a plate-like structure. The end of the connecting shaft away from the sleeve passes through the center of the top cover and the top cover and the connecting shaft are relatively fixed by a top cover fixer. The bracket is installed on the top cover, and the guide wheel is rotatably installed on the bracket. The guide wheel is used to constrain the retraction and extension of the pipe bundle. The circumferential outer side surface of the guide wheel is concave, and the pipe bundle is limited to be led out along the circumferential outer side surface of the guide wheel.

[0013] The guide wheel and the bracket are connected by a fixed shaft, which is installed on the bracket. The guide wheel is connected to the fixed shaft through a bearing. The guide assembly also includes a limiter. The limiter is U-shaped, including two parallel vertical rods and a cross rod. The two ends of the cross rod are respectively connected to one end of the two vertical rods, and the other ends of the two vertical rods are respectively connected to the two sides of the guide wheel. The two vertical rods are connected to the fixed shaft. There is a gap between the circumferential outer side surface of the guide wheel and the cross rod of the limiter, and the pipeline bundle passes through the gap.

[0014] The central axis of the guide wheel and the connecting axis are neither parallel nor perpendicular, and the two are located in the same plane.

[0015] The guide assembly further comprises at least one group of pressure wheel groups, which are arranged at the bottom of the top cover and directly above the receiving cavity.

[0016] The beneficial effects of the present invention are: (1) The use of slip ring structure is eliminated, so that the optical fiber of the high-power laser maintains structural integrity and reduces the risk of accidents during operation. (2) Various lines between the equipment area and the working area in a system can be bundled into one line, and the pipelines in the pipeline bundle do not need to be cut off to add various types of slip rings, that is, the slip ring structures such as gas slip rings, liquid slip rings, electric slip rings and smooth slip rings are eliminated, which greatly saves installation costs and subsequent maintenance costs. (3) After the liquid slip ring is eliminated, the occurrence of leakage accidents will be greatly reduced. (4) After using the coil spring as the power source, there is no need for motor drive, and the pure mechanical structure has a longer service life in harsh environments such as radiation, high temperature and low temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0018] Figure 2 It is a schematic diagram of the storage component structure of an embodiment of the present invention.

[0019] Figure 3 It is a schematic diagram of the structure of a power assembly according to an embodiment of the present invention.

[0020] Figure 4 It is a schematic structural diagram of a power component from another perspective of an embodiment of the present invention.

[0021] Figure 5 It is a schematic diagram of the structure of a conduction component according to an embodiment of the present invention. DETAILED DESCRIPTION

[0022] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0023] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0024] An integrated automatic retractable device for pipelines without slip rings, such as Figures 1 to 5 As shown, it includes a storage component 10, a power component 20, a conduction component 30 and a guide component 40.

[0025] Storage component 10 Figure 2 As shown, it includes a base plate 11, a hinge 13 and two panels 12. The base plate 11 is a flat plate and is the base of the entire storage device. The panels 12 are in the shape of a circular tube. The two panels 12 have different diameters. The two panels 12 are coaxially arranged and sleeved with each other. The bottoms of the two panels 12 are fixed on the base plate 11. The cavity between the two panels 12 is used to store the optical fiber tube bundle 50 that needs to be stored. The cavity is set as a storage cavity 14. The tube bundle 50 is stacked in layers from bottom to top in the storage cavity 14.

[0026] Suppose two enclosures 12 are respectively an inner enclosure and an outer enclosure. The inner diameter of the outer enclosure is larger than the outer diameter of the inner enclosure, and the height of the inner enclosure is not less than the height of the outer enclosure. An opening and a hinge 13 are provided on the outer enclosure. The opening and closing of the opening are achieved by opening and closing the hinge 13. After the hinge 13 is opened, the pipe bundle 50 can be placed in the storage chamber 14 through the opening. Preferably, the hinge 13 opens outward. The opening on the outer enclosure extends from the top to the bottom of the outer enclosure. The upper end of the hinge 13 is flush with the top of the outer enclosure, the lower end of the hinge 13 is higher than the bottom of the outer enclosure, and the width of the hinge 13 is greater than the width of the opening. In this way, the hinge 13 does not completely close the opening, but leaves a small opening at the lower end of the outer enclosure. The top of the small opening is the bottom of the hinge 13, and the bottom of the small opening is the bottom of the outer enclosure. When the pipe bundle 50 is stored in the storage cavity 14, one end of the pipe bundle 50 is led out from the small opening to access the device in the equipment area, and the other end is led out from the upper end of the storage assembly 10 to access the mobile equipment in the processing area.

[0027] In addition, a steel column 15 is fixedly provided on the base plate 11 , and the steel column 15 is surrounded by the inner enclosure plate. The steel column 15 is used to connect the coil spring 21 of the power assembly 20 .

[0028] The power assembly 20 is located in the inner enclosure, and the power assembly 20 provides the pipeline harness with recovery power, such as Figure 3 and 4 As shown, the power assembly 20 includes a coil spring 21, a positioning frame 22, and a baffle 23. The coil spring 21 can store and release elastic potential energy, and one end of the coil spring 21 is connected to the steel column 15, and the other end is connected to the conductive assembly 30.

[0029] Specifically, the baffle 23 is a circular plate, the plane where the baffle 23 is located is perpendicular to the central axis of the inner enclosure plate, and the central axis of the inner enclosure plate passes through the center of the baffle 23. The diameter of the baffle 23 is not greater than the inner diameter of the inner enclosure plate, so that the baffle 23 can be placed in the inner enclosure plate. The positioning frame 22 is cylindrical, and the top of the positioning frame 22 is fixedly connected to the baffle 23. In this embodiment, the positioning frame 22 is composed of a plurality of arc-shaped plates arranged at intervals on the same circle. The coil spring 21 is located in the internal cavity of the positioning frame 22, and the height of the positioning frame 22 is greater than the thickness of the coil spring 21. The positioning frame 22 is used to limit the movement space of the coil spring 21. A rotating member 24 is provided in the center of the coil spring 21, and the rotating member 24 is spiral-shaped. In other words, the rotating member 24 is mosquito-repellent ... Figure 3 As shown, a slender tubular positioning ring 25 is fixedly provided at one end of the outer ring of the coil spring 21, and the steel column 15 is inserted into the positioning ring 25 to achieve a fixed connection between one end of the outer ring of the coil spring 21 and the steel column 15. Obviously, the thickness of the steel column 15 should be less than the height of the positioning frame 22 and basically equal to the thickness of the coil spring 21. The thickness of the rotating member 24 and the thickness of the coil spring 21 are also basically the same, and the thickness directions of the two are consistent. The thickness direction of the rotating member 24 and the thickness direction of the coil spring 21 are parallel to the central axis of the coil spring 21 and the rotating member 24. The conducting component 30 can drive the rotating member 24 to roll inward, and the rotating member 24 drives the coil spring 21 to roll inward at the same time to store elastic potential energy. Obviously, when the power assembly 20 is located in the inner enclosure, the positioning frame 22 is supported on the base plate 11, which is equivalent to the baffle 23, the base plate 11 and the positioning frame 22 forming a cylindrical container, the baffle 23 is the top cover of the container, the positioning frame 22 is the side wall of the container, the base plate 11 is the bottom plate of the container, and the coil spring 21 is located in the container.

[0030] The transmission component 30 is used to transmit the motion between the power component 20 and the guide component 40. The transmission component 30 is as follows: Figure 1 and 5As shown, it includes a shaft seat 31, a connecting shaft 32, a shaft sleeve 33 and a top cover fixer 34. The shaft seat 31, the shaft sleeve 33 and the top cover fixer 34 are all sleeved on the connecting shaft 32. At least one bearing 35 is installed in the shaft seat 31, and the connecting shaft 32 is rotatably installed on the shaft seat 31 through the bearing 35, and the connecting shaft 32 passes through the shaft seat 31. The shaft sleeve 33 is detachably installed at one end of the connecting shaft 32. When the shaft sleeve 33 is sleeved on the connecting shaft 32, the shaft sleeve 33 and the connecting shaft 32 are relatively fixed to realize synchronous rotation of the two, and the position of the shaft sleeve 33 in the length direction of the connecting shaft 32 is adjustable. Specifically, the shaft sleeve 33 is relatively fixedly installed on the connecting shaft 32 by a screw that radially passes through the shaft sleeve 33, and the installation position is adjustable.

[0031] The shaft sleeve 33 is fixedly connected to one end of the inner ring of the rotating member 24. Specifically, a connecting protrusion 26 is provided at one end of the inner ring of the rotating member 24, and a connecting groove is provided on the outer surface of the shaft sleeve 33. When the shaft sleeve 33 is inserted into the inner ring of the rotating member 24, the connecting protrusion 26 of the rotating member 24 is inserted into the connecting groove of the shaft sleeve 33. In this way, when the shaft sleeve 33 rotates, the shaft sleeve 33 drives one end of the rotating member 24 to move, so that the rotating member 24 is rolled inward.

[0032] Furthermore, in this embodiment, three bearings 35 are provided in the shaft seat 31 to ensure that the connecting shaft 32 keeps rotating without deviation and shaking. The three bearings 35 are deep groove ball bearings and / or thrust bearings. The bottom of the shaft seat 31 is supported on the baffle 23. The shaft seat 31 is composed of two small shaft seats, namely an upper shaft seat and a lower shaft seat, the lower shaft seat is supported on the baffle 23, the upper shaft seat is supported on the lower shaft seat, two bearings are provided on the lower shaft seat, and one bearing is provided on the upper shaft seat. A flanged sleeve with holes is provided on the upper shaft seat, specifically, the upper shaft seat, the flanged sleeve with holes, and the connecting shaft 32 are sequentially sleeved from the outside to the inside. The flange of the flanged sleeve with holes is located between the upper shaft seat and the lower shaft seat, and the flanged sleeve with holes is fixedly connected to the connecting shaft 32 by screws to prevent the connecting shaft 32 from moving in its length direction.

[0033] From above, the baffle 23 can be fixed on the base plate 11 by bolts, the shaft seat 31 can be supported and fixed on the baffle 23 by screws, etc., and the flanged hole sleeve is limited by the flanging to prevent the flanged hole sleeve from detaching from the shaft seat 31, further ensuring the rotation stability of the connecting shaft 32.

[0034] The guide assembly 40 is as follows Figure 1As shown, it includes a top cover 41, a bracket 42, a guide wheel 43, a pressure wheel group 44 and a limiter 45. The top cover 41 is a plate-like structure. The end of the connecting shaft 32 away from the shaft sleeve 33 passes through the center of the top cover 41 and then the top cover 41 and the connecting shaft 32 are relatively fixed by the top cover fixer 34. The position of the top cover fixer 34 on the connecting shaft 32 is adjustable. The outer diameter of the top cover 41 is not less than the inner diameter of the inner panel and does not block the pipe harness 50 from being led out from the upper end of the storage chamber 14. For the guide assembly 40, the top cover 41 acts as a carrier. The bracket 42 is mounted on the top cover 41. Preferably, the bracket 42 is arranged on the periphery of the top cover 41, that is, away from the rotation center axis of the top cover 41. The guide wheel 43 is rotatably mounted on the bracket 42. The guide wheel 43 is used to constrain the retraction and release of the pipe harness 50. Specifically, the guide wheel 43 and the bracket 42 are connected by a fixed shaft, and the fixed shaft is mounted on the bracket 42. The guide wheel 43 is connected to the fixed shaft through a bearing, so that the guide wheel 43 can rotate with the fixed shaft as the central axis. Preferably, the central axis of the guide wheel 43 and the connecting shaft 32 are neither parallel nor perpendicular, and both are located in the same plane. The circumferential outer side surface of the guide wheel 43 is concave, which is convenient for accommodating and guiding the pipe harness 50. The limiter 45 is U-shaped, that is, the limiter 45 includes two parallel vertical rods and a cross rod, the two ends of the cross rod are respectively connected to one end of the two vertical rods, and the other ends of the two vertical rods are respectively connected to the two sides of the guide wheel 43, and the two vertical rods are connected to the fixed shaft. There is a gap between the circumferential outer side surface of the guide wheel 43 and the cross rod of the limiter 45, and the pipe harness 50 passes through the gap.

[0035] From the above, the angle between the plane where the guide wheel 43 is located and the horizontal plane can be adjusted by changing the height of the bracket 42 or other methods.

[0036] At least one group of pressure rollers 44 is provided, and the pressure rollers 44 are arranged at the bottom of the top cover 41 and directly above the storage chamber 14. The pressure rollers 44 include a pressure roller seat and a plurality of pressure rollers, and the pressure roller seat is fixedly mounted at the bottom of the top cover 41, and the plurality of pressure rollers are rotatably mounted on the pressure roller seat. Preferably, the central axis of the pressure roller is perpendicular to the connecting shaft 32. When the pipe bundle 50 is recovered, the pressure roller contacts the pipe bundle 50 and presses down the pipe bundle 50 to optimize the line layout.

[0037] The winding direction of the pipe harness 50 is opposite to the torsion direction of the coil spring 21 , and the number of working turns of the coil spring 21 is greater than the number of retractable turns of the pipe harness 50 .

[0038] Based on the above structure, the working principle and process of the present invention are as follows: when placing the pipe bundle 50 into the storage device, first, unscrew the screws connected to the connecting shaft 32 on the top cover fixer 34 to remove the guide assembly 40. Then, open the hinge 13, put the pipe bundle 50 into the storage cavity 14 of the storage assembly 10 in a coiled manner, close the hinge 13, and lead one end of the pipe bundle 50 from the small opening below the hinge 13 and the other end from the top of the storage cavity 14. Then assemble the guide assembly 40 back into the storage device, and fix the top cover fixer 34 and the top cover 41. Finally, pass the end of the pipe bundle 50 leading out from the top of the storage cavity 14 through the guide wheel 43 and the limiter 45 and connect it to the mobile device.

[0039] The principle of releasing the pipe bundle 50 is as follows: when the external system is working, the mobile device in the working area drives the pipe bundle 50 inside the retracting device to be pulled out by its own movement. During this process, the pipe bundle 50 contacts the guide wheel 43, driving the entire guide assembly 40 to move in the opposite direction of the winding direction of the pipe bundle 50, that is, to rotate around the connecting shaft 32. The guide assembly 40 drives the connecting shaft 32 to rotate, and the connecting shaft 32 transmits the torque to the shaft sleeve 33. The shaft sleeve 33 transmits the movement to the coil spring 21 through the rotating member 24. The coil spring 21 rolls inward and absorbs and stores the torque. During the process of pulling out the pipe bundle 50, the force recovered by the coil spring 21 continues to increase as the length of the pulled-out pipe bundle 50 increases. When the pulling force given by the external mobile device is equal to or the pipe bundle 50 in the retracting device is completely pulled out, the pipe bundle 50 will stop pulling out.

[0040] The principle of retracting the pipe bundle 50 is as follows: when the pulling force given by the external mobile device is less than the rotational force of the coil spring 21, the coil spring 21 will drive the sleeve 33 to rotate around the rotation direction of the coil spring 21 and transmit the rotation to the guide assembly 40 through the connecting shaft 32, that is, the coil spring 21 rotates due to the release of the stored elastic potential energy, driving the sleeve 33 to rotate, and the sleeve 33 drives the connecting shaft 32 to rotate in the opposite direction; the connecting shaft 32 drives the top cover 41 to rotate, so that the entire guide assembly 40 rotates, and the pipe bundle 50 on the guide wheel 43 performs a downward pressing action to help the pipe bundle 50 to be retracted into the storage cavity 14; at the same time, the pressing wheel group 44 will further press the pipe bundle 50 that has initially pressed the storage cavity 14 downward and rotate around the connecting shaft 32 at the same time to help the pipe bundle 50 correct its position.

[0041] Finally, it is necessary to explain here that the above embodiments are only used to further illustrate the technical solution of the present invention in detail and cannot be understood as limiting the scope of protection of the present invention. Some non-essential improvements and adjustments made by technicians in this field based on the above content of the present invention all fall within the scope of protection of the present invention.

Claims

1. An integrated automatic pipeline retracting and releasing device without slip rings, characterized in that: The device comprises a storage component (10) and a power component (20), a conduction component (30), and a guide component (40) installed in the storage component (10); a pipe harness (50) is wound and stored in the storage component (10); one end of the pipe harness (50) is led out to a mobile device through the guide component (40); the guide component (40) is connected to a power component (20) capable of accumulating elastic potential energy through the conduction component (30); when the mobile device pulls one end of the pipe harness (50) to move, the one end of the pipe harness (50) is pulled out from the storage component (10); when one end of the pipe harness (50) is pulled, the guide component (40) is driven to rotate; the guide component (40) drives the power component (20) to rotate through the conduction component (30); and the power component (20) accumulates elastic potential energy.

2. The retractable device according to claim 1, characterized in that: The storage assembly (10) comprises a base plate (11), a hinge (13) and two enclosures (12); the base plate (11) is a flat plate, the enclosure (12) is a circular tube, the two enclosures (12) have different diameters, the two enclosures (12) are coaxially arranged and sleeved with each other, the bottoms of the two enclosures (12) are fixed on the base plate (11), the cavity between the two enclosures (12) is used to store the pipe bundle (50) that needs to be stored, the cavity is the storage cavity (14), the two enclosures (12) are respectively an inner enclosure and an outer enclosure, the inner diameter of the outer enclosure is larger than the outer diameter of the inner enclosure, the outer enclosure is provided with an opening and a hinge (13), and the opening is opened and closed by opening and closing the hinge (13).

3. The retractable device according to claim 2, characterized in that: The power assembly (20) is located in the inner enclosure plate. The power assembly (20) provides power for recovering the pipeline harness. The power assembly (20) comprises a coil spring (21). The coil spring (21) can store and release elastic potential energy. One end of the coil spring (21) is fixed relative to the base plate (11), and the other end is connected to the conduction assembly (30).

4. The retractable device according to claim 3, characterized in that: The power assembly (20) further comprises a positioning frame (22) and a baffle (23); the baffle (23) is a circular plate and is parallel to the base plate (11); the positioning frame (22) is cylindrical; the top of the positioning frame (22) is fixedly connected to the baffle (23) and the lower end is supported on the base plate (11); and the coil spring (21) is located in an internal cavity of the positioning frame (22).

5. The retractable device according to claim 3, characterized in that: The conducting component (30) comprises a shaft seat (31), a connecting shaft (32), a shaft sleeve (33) and a top cover fixer (34); the shaft seat (31), the shaft sleeve (33) and the top cover fixer (34) are all sleeved on the connecting shaft (32); at least one bearing (35) is installed in the shaft seat (31); the connecting shaft (32) is rotatably installed on the shaft seat (31) via the bearing (35); the connecting shaft (32) passes through the shaft seat (31); the shaft sleeve (33) is detachably installed on one end of the connecting shaft (32); the shaft sleeve (33) and the connecting shaft (32) rotate synchronously; the shaft sleeve (33) is connected to the coil spring (21); and the top cover fixer (34) is connected to the guiding component (40).

6. The retractable device according to claim 5, characterized in that: A rotating member (24) is provided at the center of the coil spring (21). The rotating member (24) is spiral-shaped. One end of the rotating member (24) close to the center is connected to the shaft sleeve (33), and the other end is connected to one end of the inner ring of the coil spring (21). One end of the outer ring of the coil spring (21) is fixed relative to the base plate (11).

7. The retractable device according to claim 5 or 6, characterized in that: The guide assembly (40) comprises a top cover (41), a bracket (42), and a guide wheel (43). The top cover (41) is a plate-like structure. The end of the connecting shaft (32) away from the shaft sleeve (33) passes through the center of the top cover (41), and the top cover (41) and the connecting shaft (32) are relatively fixed by a top cover fixer (34). The bracket (42) is mounted on the top cover (41), and the guide wheel (43) is rotatably mounted on the bracket (42). The guide wheel (43) is used to constrain the retraction and extension of the pipe bundle (50). The circumferential outer side surface of the guide wheel (43) is concave, and the pipe bundle (50) is limited to be led out along the circumferential outer side surface of the guide wheel (43).

8. The retractable device according to claim 7, characterized in that: The guide wheel (43) and the bracket (42) are connected via a fixed shaft, the fixed shaft is mounted on the bracket (42), the guide wheel (43) is connected to the fixed shaft via a bearing, the guide assembly (40) further comprises a stopper (45), the stopper (45) is U-shaped, comprises two parallel vertical bars and a horizontal bar, the two ends of the horizontal bar are respectively connected to one end of the two vertical bars, the other ends of the two vertical bars are respectively connected to the two sides of the guide wheel (43), the two vertical bars are connected to the fixed shaft, there is a gap between the circumferential outer side surface of the guide wheel (43) and the horizontal bar of the stopper (45), and the pipeline bundle (50) passes through the gap.

9. The retractable device according to claim 8, characterized in that: The central axis of the guide wheel (43) and the connecting axis (32) are neither parallel nor perpendicular, and both are located in the same plane.

10. The retractable device according to claim 7, characterized in that: The guide assembly (40) further comprises at least one set of pressure wheel assemblies (44), wherein the pressure wheel assemblies (44) are arranged at the bottom of the top cover (41) and directly above the storage cavity (14).

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