Cable take-up and pay-off device

Abstract

The utility model discloses a cable take-up and pay-off device which comprises a take-up roller, two baffle discs and a fixing assembly, the two baffle discs are arranged at the two ends of the take-up roller respectively, the fixing assembly comprises a locking sleeve and an extrusion ring, the locking sleeve is connected to the baffle discs, the locking sleeve comprises a first threaded section and a locking section which are arranged in the axial direction of the locking sleeve, and the first threaded section is connected with the extrusion ring. The locking section is provided with a locking hole extending in the axial direction of the locking section, a cable is inserted into the locking hole, the extrusion ring is arranged on the locking sleeve in a sleeving mode and comprises a second threaded section and an extrusion section which are arranged in the axial direction of the extrusion ring, and the second threaded section is in threaded connection with the first threaded section; in the process that the second threaded section rotates relative to the first threaded section, the extrusion section has a first state in which the extrusion section extrudes the outer side wall of the locking section to enable the locking section to elastically deform inwards, and a second state in which the extrusion section is separated from the locking section. According to the cable take-up and pay-off device, the free end of the cable can be conveniently fixed, and scattering caused by cable loosening is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cable processing, and particularly relates to a cable pay-off and take-up device. Background Art

[0002] A cable pay-off and take-up device is a device used for winding a cable during cable processing to facilitate the pay-off and take-up of the cable. Generally, it includes a take-up roller and retaining discs arranged at both ends of the take-up roller. The cable is wound around the take-up roller, and the retaining discs limit the cable to prevent the cable from slipping off both ends of the retaining discs.

[0003] Although the existing cable pay-off and take-up device can wind the cable, it has the following drawbacks: After the cable is wound, the free end of the cable is not convenient to fix, and thus the cable is prone to looseness and become scattered. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a cable pay-off and take-up device, which is convenient for fixing the free end of the cable and avoiding the cable from loosening and becoming scattered.

[0005] According to the cable pay-off and take-up device of the embodiment of the utility model, it includes a take-up roller, two retaining discs and a fixing component. The two retaining discs are respectively arranged at both ends of the take-up roller. The fixing component includes a locking sleeve and a pressing ring. The locking sleeve is connected to the retaining disc. The locking sleeve includes a first threaded section and a locking section arranged along its own axial direction. The locking section is provided with a locking hole extending along its own axial direction, and the locking hole is for inserting the cable. The pressing ring is sleeved on the locking sleeve. The pressing ring includes a second threaded section and a pressing section arranged along its own axial direction. The second threaded section is threadedly connected with the first threaded section. Wherein, during the rotation of the second threaded section relative to the first threaded section of the pressing ring, the pressing section of the pressing ring has a first state of pressing the outer side wall of the locking section to cause the locking section to elastically deform inward, and a second state of separating from the locking section.

[0006] The cable pay-off and take-up device according to the embodiment of the utility model has at least the following beneficial effects:

[0007] In the utility model, after the cable is wound around the take-up roller, the free end of the cable is inserted into the locking hole. Then, the second threaded section of the pressing ring is rotated relative to the first threaded section of the locking sleeve to make the pressing section of the pressing ring in the first state. In this state, the pressing section of the pressing ring presses the outer side wall of the locking section of the locking sleeve. The locking section is pressed and elastically deforms inward, that is, elastically deforms towards the axis of the locking sleeve, so that the aperture of the locking hole decreases, and the hole wall of the locking hole can tightly press the free end of the cable, thereby clamping and fixing the free end of the cable, and thus being able to avoid the cable from loosening and becoming scattered. The operation is convenient, time-saving and labor-saving.

[0008] According to some embodiments of the present utility model, the outer diameter of the locking section gradually increases in a direction away from the first threaded section.

[0009] According to some embodiments of the present utility model, the fixing assembly further includes a winding drum and a connecting rope. The winding drum is rotatably and adjustably disposed on the retaining plate around its own axis. One end of the connecting rope is wound on the winding drum, and the other end is connected to the locking sleeve.

[0010] According to some embodiments of the present utility model, the winding drum is provided with an annular flange. The annular flange is provided with a plurality of first positioning holes arranged circumferentially along the winding drum. The retaining plate is correspondingly provided with a plurality of second positioning holes corresponding to the first positioning holes. The winding drum can be rotated to align the first positioning holes with different second positioning holes, so as to insert a limiting member.

[0011] According to some embodiments of the present utility model, the fixing assembly further includes a guiding portion. The guiding portion is disposed on the retaining plate and can be adjusted movably along the radial direction of the retaining plate. The guiding portion is provided with a guiding hole for the connecting rope to pass through.

[0012] According to some embodiments of the present utility model, the retaining plate is provided with an adjusting groove. The adjusting groove axially penetrates through the retaining plate and extends along the radial direction of the retaining plate. The fixing assembly further includes a fastening bolt and two locking nuts. The fastening bolt is connected to the guiding portion and passes through the adjusting groove. The two locking nuts are connected to the fastening bolt and are respectively located on both sides outside the penetration direction of the adjusting groove.

[0013] According to some embodiments of the present utility model, the guiding portion is provided with a limiting block. The limiting block is located in the adjusting groove. Both sides of the limiting block are attached to both sides of the adjusting groove to limit the guiding portion from rotating around the fastening bolt.

[0014] According to some embodiments of the present utility model, the outer sidewall of the winding roller is provided with a clamping groove. The sidewall of the clamping groove is provided with a clamping slot. The cable winding and unwinding device further includes a clamping member. One end of the clamping member is rotatably connected to the winding roller, and the other end is provided with an elastic hook; wherein, the clamping member can be rotated to a first position and a second position. When the clamping member is in the first position, the elastic hook is clamped in the clamping slot, and the clamping member can cooperate with the surface of the clamping groove to clamp the cable. When the clamping member is in the second position, the elastic hook is separated from the clamping slot.

[0015] According to some embodiments of the present utility model, elastic blocks are provided on two opposite sides of the clamping groove, and the clamping member is provided with a pressing portion. When the clamping member rotates to the first position, the pressing portion presses the two elastic blocks, causing the two elastic blocks to elastically deform in opposite directions to clamp the cable.

[0016] According to some embodiments of the present utility model, a guiding groove communicating with the clamping groove is provided on the outer sidewall of the winding roller. The guiding groove extends along the circumferential direction of the winding roller, and the depth dimension of the guiding groove gradually decreases in a direction away from the clamping groove.

[0017] Some additional aspects and advantages of the present utility model will be given in the following description, some advantages will become apparent from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0018] The following further describes the present utility model in conjunction with the drawings and embodiments, where:

[0019] Figure 1 is a schematic structural diagram of a cable winding and unwinding device according to an embodiment of the present utility model;

[0020] Figure 2 is Figure 1 a partial structural diagram of the fixing component in

[0021] Figure 3 is Figure 2 a partial cross-sectional view of

[0022] Figure 4 is Figure 1 an enlarged view of part A in

[0023] Figure 5 is Figure 4 a schematic structural diagram of the guiding portion in

[0024] Figure 6 is Figure 1 an enlarged view of part B in

[0025] Figure 7 is Figure 6 an installation schematic diagram of the clamping member in

[0026] Reference Numerals in the Drawings:

[0027] Winding roller 100; Clamping groove 101; Card slot 102; Elastic block 103; Guiding groove 104;

[0028] Blocking disc 200; Adjusting groove 201;

[0029] Fixing component 300; locking sleeve 301; extrusion ring 302; first threaded section 303; locking section 304; locking hole 305; second threaded section 306; extrusion section 307; cable take-up reel 308; connecting rope 309; annular flange 310; first positioning hole 311; guiding portion 312; guiding hole 313; fastening bolt 314; locking nut 315; limiting block 316;

[0030] Clamping member 400; elastic hook 401; extrusion portion 402. Detailed implementation manners

[0031] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0032] In the description of the present utility model, it should be understood that with respect to the orientation description, such as up, down, etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

[0033] In the description of the present utility model, "a plurality of" refers to two or more. If the first and second are described only for the purpose of distinguishing technical features, they should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence of the indicated technical features.

[0034] In the description of the present utility model, unless otherwise clearly defined, terms such as "arrangement", "installation", "connection", etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0035] Reference is made below to Figures 1 to 7 Describe a cable take-up and pay-out device according to an embodiment of the present utility model.

[0036] Reference is made to Figures 1 to 3 As shown, a cable take-up and pay-out device according to an embodiment of the present utility model includes a take-up roller 100, two retaining discs 200, and a fixing component 300.

[0037] For example, mounting shafts may be coaxially provided at both ends of the take-up roller 100. The mounting shafts are used to be mounted on the mounting brackets and can be used to connect motors. The motors control the rotation of the take-up roller 100 through the mounting shafts, thereby winding the cable. Of course, the mounting shafts may not be connected to the motors, and the take-up roller 100 is directly driven to rotate by the cable, thereby realizing the unwinding of the cable.

[0038] Two retaining discs 200 are respectively provided at both ends of the take-up roller 100. The retaining discs 200 may have a disc structure and be coaxial with the take-up roller 100. Of course, the retaining discs 200 may also be of other suitable shapes, which will not be elaborated here.

[0039] The fixing assembly 300 includes a locking sleeve 301 and a pressing ring 302. The locking sleeve 301 is connected to the retaining disc 200. The locking sleeve 301 includes a first threaded section 303 and a locking section 304 arranged along its own axial direction. The outer side wall of the first threaded section 303 is provided with an external thread. The locking section 304 can be made of an elastic material, such as elastic rubber or elastic plastic. The locking section 304 is provided with a locking hole 305 extending along its own axial direction. The locking hole 305 can extend into the first threaded section 303. After the cable is wound around the take-up roller 100, the free end of the cable is inserted into the locking hole 305. The pressing ring 302 is sleeved on the locking sleeve 301. The pressing ring 302 includes a second threaded section 306 and a pressing section 307 arranged along its own axial direction. The inner side wall of the second threaded section 306 may be provided with an internal thread. The second threaded section 306 is threadedly connected to the first threaded section 303 through the cooperation of the external thread and the internal thread.

[0040] Wherein, during the rotation of the second threaded section 306 relative to the first threaded section 303, the pressing section 307 has a first state and a second state. When the pressing section 307 is in the first state, the pressing section 307 presses the outer side wall of the locking section 304, causing the locking section 304 to undergo elastic deformation inward, so that the aperture of the locking hole 305 in the locking section 304 decreases. When the pressing section 307 is in the second state, the pressing section 307 is separated from the locking section 304, the locking section 304 is not pressed, and returns to its natural state, and the aperture of the locking hole 305 returns to its initial value.

[0041] In the present utility model, after the cable is wound around the winding roller 100, the free end of the cable is inserted into the locking hole 305 of the locking sleeve 301. Then, the second threaded section 306 of the pressing ring 302 is rotated relative to the first threaded section 303 of the locking sleeve 301 so that the pressing section 307 of the pressing ring 302 is in the first state. In this state, the pressing section 307 of the pressing ring 302 presses the outer wall of the locking section 304 of the locking sleeve 301. The locking section 304 is pressed and elastically deformed inward, that is, elastically deformed toward the axis of the locking sleeve 301. As a result, the aperture of the locking hole 305 in the locking section 304 is reduced, and the hole wall of the locking hole 305 in the locking section 304 can tightly press the free end of the cable, thereby clamping and fixing the free end of the cable, and thus preventing the cable from loosening and becoming scattered. When it is not necessary to fix the free end of the cable, the second threaded section 306 of the pressing ring 302 is rotated relative to the first threaded section 303 of the locking sleeve 301 so that the pressing section 307 of the pressing ring 302 is in the second state of being separated from the locking section 304 of the locking sleeve 301. The operation is convenient, time-saving and labor-saving.

[0042] In some embodiments of the present utility model, as Figure 2 and Figure 3 shown, the outer diameter of the locking section 304 gradually increases in the direction away from the first threaded section 303. For example, the outer wall of the locking section 304 can be frustum-shaped, and the outer diameter of the end of the locking section 304 close to the first threaded section 303 is the smallest and can be close to the outer diameter of the first threaded section 303, while the outer diameter of the end of the locking section 304 away from the first threaded section 303 is the largest.

[0043] In this embodiment, the locking section 304 is arranged in this way. When the second threaded section 306 is rotated relative to the first threaded section 303 to make the pressing section 307 in the first state, the pressing effect of the pressing section 307 on the locking section 304 is better, and thus the effect of elastic deformation of the locking section 304 is better, and the locking effect of the locking section 304 on the cable is better.

[0044] In some embodiments of the present utility model, as Figure 2 and Figure 4As shown, the fixing assembly 300 further includes a winding drum 308 and a connecting rope 309. The winding drum 308 is rotatably and adjustably arranged on the retaining disc 200 around its own axis. One end of the connecting rope 309 is wound on the winding drum 308, and the other end is connected to the locking sleeve 301. By rotating and adjusting the winding drum 308, the length of the part of the connecting rope 309 unwound from the winding drum 308 can be adjusted, and then the position of the locking sleeve 301 can be adjusted. Thus, no matter where the free end of the cable is located in the circumferential and axial directions of the winding roller 100, it is convenient to insert the free end of the cable into the locking hole 305 of the locking sleeve 301, and the operation is more convenient. Moreover, after locking the free end of the cable, the connecting rope 309 can be tightened by rotating and adjusting the winding drum 308, and the effect of fixing the free end of the cable is better.

[0045] In some embodiments of the present invention, as Figure 4 shown, the winding drum 308 is provided with an annular flange 310. The annular flange 310 is provided with a plurality of first positioning holes 311 arranged along the circumferential direction of the winding drum 308. The retaining disc 200 is correspondingly provided with a plurality of second positioning holes for the first positioning holes 311. The winding drum 308 can be rotated to align the first positioning holes 311 with different second positioning holes for inserting a limiting member. When rotating and adjusting the winding drum 308, after rotating the winding drum 308 by the required angle, the first positioning hole 311 just aligns with the second positioning hole, and then a limiting member such as a bolt or a limit pin is inserted to prevent the winding drum 308 from rotating continuously. The structure is simple and the operation is convenient.

[0046] It should be noted that the winding drum 308 can also be rotated and adjusted in other ways, such as being controlled by a motor to rotate, which will not be elaborated here.

[0047] In some embodiments of the present invention, as Figure 4 and Figure 5 shown, the fixing assembly 300 further includes a guiding portion 312. The guiding portion 312 is arranged on the retaining disc 200 and can be adjusted movably along the radial direction of the retaining disc 200. The guiding portion 312 is provided with a guiding hole 313 for the connecting rope 309 to pass through. By adjusting the guiding portion 312 movably along the radial direction of the retaining disc 200, the distance between the connecting rope 309 passing through the guiding portion 312 and the axis of the winding roller 100 can be adjusted. Thus, even if the distance between the free end of the cable and the axis of the winding roller 100 is different, it is still convenient to insert the free end of the cable into the locking hole 305 of the locking sleeve 301. In addition, it is also convenient for the connecting rope 309 passing through the guiding portion 312 to fit on the outer circle of the cable, and then it is convenient for a protective film or a protective sleeve to wrap the cable and the connecting rope 309 passing through the guiding portion 312 together, and the protection effect is better.

[0048] In some embodiments of the present invention, as Figure 4 and Figure 5As shown, the retaining disc 200 is provided with an adjustment groove 201. The adjustment groove 201 penetrates along the axial direction of the retaining disc 200 and extends along the radial direction of the retaining disc 200. The fixing assembly 300 further includes a fastening bolt 314 and two locking nuts 315. The fastening bolt 314 is connected to the guiding portion 312 and passes through the adjustment groove 201. The two locking nuts 315 are connected to the fastening bolt and are respectively located on both sides outside the penetration direction of the adjustment groove 201. For example, the guiding portion 312 may be provided with a through hole, and the fastening bolt 314 passes through the through hole. One of the locking nuts 315 may be the nut of the fastening bolt 314, and the other locking nut 315 may be threadedly connected to the fastening bolt 314. The connecting rope 309 may sequentially pass through the guiding hole 313 and the adjustment groove 201. When it is necessary to adjust the guiding portion 312 axially along the retaining disc 200, one of the locking nuts 315 can be loosened. After the adjustment is completed, tightening this locking nut 315 can achieve the purpose. The structure is simple, the operation is convenient, time and labor are saved, and the adjustment effect is good.

[0049] It should be noted that the guiding portion 312 can also be adjusted in other directions. For example, the retaining disc 200 can be provided with multiple groups of mounting holes along the radial direction, and connecting the guiding portion 312 to different groups of mounting holes through fasteners can also achieve adjustment.

[0050] In some embodiments of the present invention, as Figure 5 shown, the guiding portion 312 is provided with a limiting block 316. The limiting block 316 is located in the adjustment groove 201, and both sides of the limiting block 316 are attached to both sides of the adjustment groove 201 to limit the guiding portion 312 from rotating around the fastening bolt 314. By attaching both sides of the limiting block 316 to both sides of the adjustment groove 201, the guiding portion 312 can be restricted from rotating around the fastening bolt 314, making the guiding portion 312 more stable after being locked. When setting, the guiding hole 313 of the guiding portion 312 can be made to coincide with the projection of the adjustment groove 201 in the axial direction of the winding roller 100, so as to facilitate the connecting rope 309 to pass through the guiding hole 313 and the adjustment groove 201 and avoid interference.

[0051] In some embodiments of the present invention, as Figure 6 and Figure 7As shown, a clamping groove 101 is provided on the outer side wall of the take-up roller 100, and a clamping groove 102 is provided on the side wall of the clamping groove 101. The cable winding and unwinding device further includes a clamping member 400. One end of the clamping member 400 is rotatably connected to the take-up roller 100, and the other end is provided with an elastic hook 401. Among them, the clamping member 400 can rotate to a first position and a second position. When the clamping member 400 is in the first position, the elastic hook 401 is clamped in the clamping groove 102, and the clamping member 400 can cooperate with the surface of the clamping groove 101 to clamp the cable. When the clamping member 400 is in the second position, the elastic hook 401 is separated from the clamping groove 102. For example, one end of the clamping member 400 can be rotatably connected to two opposite side walls of the clamping groove 101 through a mounting shaft. The elastic hook 401 can be located at one end of the clamping member 400 away from the mounting shaft, and the elastic hook 401 can be made of a suitable elastic material such as elastic plastic.

[0052] When the cable needs to be wound, insert the initial end of the cable into the clamping groove 101, and then rotate the clamping member 400 to make the clamping member 400 in the first position. In this position, the elastic hook 401 on the clamping member 400 is clamped in the clamping groove 102, and the clamping member 400 can cooperate with the surface of the clamping groove 101 away from the clamping member 400 to clamp the cable, so that the initial end of the cable can be fixed, making the cable winding more convenient, and further avoiding the cable from loosening and becoming scattered. When the initial end of the cable needs to be released, rotate the clamping member 400 forcefully to make the clamping member 400 rotate to the second position where the elastic hook 401 is separated from the clamping groove 102. The operation is simple and convenient.

[0053] In some embodiments of the present invention, as Figure 7 shown, elastic blocks 103 are provided on two opposite sides of the clamping groove 101, and the clamping member 400 is provided with a pressing portion 402. When the clamping member 400 rotates to the first position, the pressing portion 402 presses the two elastic blocks 103, causing the two elastic blocks 103 to elastically deform in the opposite direction to clamp the cable. The elastic blocks 103 can be made of elastic rubber or elastic plastic. When the clamping member 400 rotates to the first position, the pressing portion 402 on the clamping member 400 presses the elastic blocks 103, and the two elastic blocks 103 elastically deform in the opposite direction, so that the distance between the two elastic blocks 103 is reduced, thereby clamping the initial end of the cable and making the fixing effect of the initial end of the cable better.

[0054] In some embodiments of the present invention, as Figure 6 and Figure 7As shown in the figure, a guiding groove 104 communicating with the clamping groove 101 is provided on the outer side wall of the winding roller 100. The guiding groove 104 extends along the circumferential direction of the winding roller 100, and the depth dimension of the guiding groove 104 gradually decreases in the direction away from the clamping groove 101. By providing the guiding groove 104 which extends along the circumferential direction of the winding roller 100 and whose depth dimension gradually decreases in the direction away from the clamping groove 101, the cable can be guided. In this way, it is not only more convenient to wind the cable on the winding roller 100, but also the situation of the cable outlet being bent can be reduced, and the cable damage can be avoided.

[0055] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those of ordinary skill in the art to which the present invention pertains.

Claims

1. A cable retracting and releasing device, characterized in that: include: Winding roller; Two baffles are respectively arranged at two ends of the winding roller; A fixing assembly, comprising a locking sleeve and an extrusion ring, wherein the locking sleeve is connected to the baffle, the locking sleeve comprises a first threaded section and a locking section arranged along its own axial direction, the locking section is provided with a locking hole extending along its own axial direction, the locking hole is for the cable to be inserted, the extrusion ring is sleeved on the locking sleeve, the extrusion ring comprises a second threaded section and an extrusion section arranged along its own axial direction, the second threaded section is threadedly connected to the first threaded section; Wherein, during the rotation of the second thread segment relative to the first thread segment, the extrusion segment has a first state in which it extrudes the outer side wall of the locking segment to elastically deform the locking segment inward, and a second state in which it is separated from the locking segment.

2. The cable retracting and releasing device according to claim 1, characterized in that: The outer diameter of the locking section gradually increases in a direction away from the first threaded section.

3. The cable retracting and unreeling device according to claim 1 or 2, characterized in that: The fixing assembly also includes: The winding drum is arranged on the baffle plate so as to be rotatable and adjustable around its own axis; A connecting rope, one end of which is rolled up on the winding drum, and the other end of which is connected to the locking sleeve.

4. The cable retracting and releasing device according to claim 3, characterized in that: The winding drum is provided with an annular flange, and the annular flange is provided with a plurality of first positioning holes arranged along the circumference of the winding drum. The baffle plate is provided with a plurality of second positioning holes corresponding to the first positioning holes. The winding drum can be rotated so that the first positioning holes are aligned with different second positioning holes to insert a limit piece.

5. The cable retracting and releasing device according to claim 3, characterized in that: The fixing assembly also includes: The guide part is arranged on the baffle plate and can be adjusted along the radial direction of the baffle plate. The guide part is provided with a guide hole for the connecting rope to pass through.

6. The cable retracting and unreeling device according to claim 5, characterized in that: The baffle plate is provided with an adjustment groove, the adjustment groove penetrates the baffle plate along the axial direction and extends along the radial direction of the baffle plate, and the fixing assembly further includes: A fastening bolt connected to the guide portion and passing through the adjustment slot; Two locking nuts are connected to the fastening bolts and are respectively located outside two sides of the adjustment slot in the direction in which the adjustment slot passes through.

7. The cable retracting and releasing device according to claim 6, characterized in that: The guide portion is provided with a limit block, the limit block is located in the adjustment slot, and two sides of the limit block are attached to two sides of the adjustment slot to limit the guide portion from rotating around the fastening bolt.

8. The cable retracting and releasing device according to claim 1 or 2, characterized in that: The outer side wall of the winding roller is provided with a clamping groove, and the side wall of the clamping groove is provided with a clamping groove. The cable retracting and releasing device also includes: A clamping member, one end of which is rotatably connected to the winding roller, and the other end of which is provided with an elastic hook; Wherein, the clamping member can be rotated to a first position and a second position. When the clamping member is in the first position, the elastic hook is clamped in the clamping slot, and the clamping member can cooperate with the surface of the clamping slot to clamp the cable. When the clamping member is in the second position, the elastic hook is separated from the clamping slot.

9. The cable retracting and releasing device according to claim 8, characterized in that: Elastic blocks are provided on opposite sides of the clamping groove, and the clamping member is provided with a pressing portion. When the clamping member rotates to the first position, the pressing portion presses the two elastic blocks, causing the two elastic blocks to elastically deform in opposite directions to clamp the cable.

10. The cable retracting and releasing device according to claim 8, characterized in that: The outer side wall of the winding roller is provided with a guide groove connected to the clamping groove, the guide groove extends along the circumference of the winding roller, and the depth dimension of the guide groove gradually decreases in the direction away from the clamping groove.

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