Cable retracting device

Abstract

This application provides a cable retraction device that uses a spring to convert the kinetic energy of the active shaft into its elastic potential energy, achieving smooth cable retraction. This prevents the impact of the periodic rotation of the active shaft on the cable during retraction, ensuring that the cable is not damaged and improving retraction efficiency. Furthermore, the cable retraction device can be carried on a person's back, allowing for rapid cable retraction and retraction while traveling.

Description

Technical Field

[0001] The present application relates to the technical field of field equipment, and in particular to a cable retracting and releasing device. Background Art

[0002] During field operations, if the terrain is complex and vehicles and other transport equipment cannot reach the target location, if temporary communication or power supply cables are to be deployed, a cable retraction device is required that can be carried by personnel and used to quickly retract and release the cables while in use. It is also necessary to ensure that the cables are not damaged during use. However, there is no cable retraction device in the relevant technology that can achieve the above technical effects. Summary of the Invention

[0003] In view of this, the purpose of this application is to provide a cable retracting device.

[0004] Based on the above objectives, the present application provides a cable retracting and releasing device, comprising:

[0005] Cable drums, spring barrels, springs, drive shafts, and drive shaft drives for routing cables;

[0006] The cable drum is sleeved on the outer periphery of the spring barrel; the spring is arranged inside the spring barrel, the inner end of the spring is connected to the driving shaft, and the outer end of the spring is fixed to the spring barrel; the driving shaft driving device is connected to the driving shaft;

[0007] The driving shaft driving device drives the driving shaft to rotate along a preset positive direction, and the driving shaft drives the mainspring to be compressed.

[0008] As can be seen from the above, the cable retraction device provided by this application converts the kinetic energy of the driving shaft into the elastic potential energy of the spring through the mainspring, achieving smooth cable retraction, preventing the impact of the periodic rotation of the driving shaft on the cable during retraction, ensuring that the cable is not damaged, and improving retraction efficiency. Furthermore, the cable retraction device can be carried on the back of a person, allowing for rapid cable retraction and retraction while traveling. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in this application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are merely embodiments of this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0010] Figure 1 This is a schematic structural diagram of a cable retracting device according to an embodiment of the present application.

[0011] Figure 2 This is a schematic cross-sectional view of a cable retracting device according to an embodiment of the present application.

[0012] Figure 3 This is a bottom view of the cable retracting device according to an embodiment of the present application.

[0013] Figure 4 This is a front view schematic diagram of the cable retracting device according to an embodiment of the present application.

[0014] Figure 5 Schematic side view of the locking device of the driving shaft driving device according to an embodiment of the present application.

[0015] Figure 6 This is a rear view schematic diagram of the locking device of the active shaft drive device according to an embodiment of the present application.

[0016] Figure 7 This is a structural diagram of the working state switching device of an embodiment of the present application.

[0017] Figure 8 This is a schematic structural diagram of the back frame structure of an embodiment of the present application.

[0018] Figure 9 This is a schematic diagram of the principle that the first fixing block and the second fixing block of an embodiment of the present application are sleeved on the periphery of the support tube.

[0019] The reference numerals in the figure include: cable drum 1, clockwork box 2, gear plate 3, hand wheel 4, pressure plate 5, driving shaft bracket 6, pressure rod 7, rotating shaft bracket 8, support tube 9, back frame 10, clockwork 11, main shaft part 12, clockwork shaft part 13, gear shaft 14, one-way bearing 15, drum synchronous wheel 16, rotating shaft 17, shift fork plate 18, first damping plate 19, second damping plate 20, damping pressure plate 21, damping baffle 22, first indexing pin 23, second indexing pin 24, lead screw 25, nut 26, Wire outlet 27, screw synchronous wheel 28, toothed belt 29, screw fork 30, first spring 31, locking pressure rod 32, locking connecting rod 33, rod barrel 34, locking seat 35, locking rod 36, gear lever 37, ratchet 38, fork 39, first part 39-1, second part 39-2, third part 39-3, third spring 40, first fixing block 41, second fixing block 42, lock buckle 43, hook 44, fixing seat 45, fixing hoop 46, gear shaft bracket 47, and barrel bracket 48. DETAILED DESCRIPTION

[0020] In order to make the objectives, technical solutions and advantages of this application more clear, this application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0021] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should have the usual meanings understood by people with ordinary skills in the field to which the present application belongs. "Include" or "comprising" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0022] During field operations, if you encounter complex terrain and vehicles and other transport equipment cannot reach the target location, if you want to deploy temporary communication or power cables, you need a cable retraction device that can be carried by personnel and can quickly retract and release the cables while traveling, and ensure that the cables are not damaged during use.

[0023] However, there is no single-person cable retracting device in the related art that meets the above characteristics.

[0024] Since there is no single-person cable retracting device that meets the above characteristics in the related art, an embodiment of the present application provides a cable retracting device.

[0025] The cable retraction device provided in this application uses a spring to convert the kinetic energy of the active shaft into its elastic potential energy, achieving smooth cable retraction. This prevents the periodic rotation of the active shaft during retraction from impacting the cable, ensuring cable damage and improving retraction efficiency. Furthermore, the cable retraction device can be carried on a person's back, enabling rapid cable retraction and retraction while on the move.

[0026] Figure 1 The structure of the cable retracting device according to an embodiment of the present application is shown. Figure 2 A cross-sectional view of a cable retracting device according to an embodiment of the present application is shown.

[0027] like Figure 2 As shown, an embodiment of the present application provides a cable retracting and releasing device, including a cable drum 1 for arranging cables, a spring box 2, a spring 11, a driving shaft and a driving shaft driving device.

[0028] The cable drum 1 is sleeved on the outer periphery of the clockwork box 2. The clockwork spring 11 is arranged inside the clockwork box 2, the inner end of the clockwork spring 11 is connected to the driving shaft, and the outer end of the clockwork spring 11 is fixed to the clockwork box 2. The driving shaft driving device is connected to the driving shaft.

[0029] In this embodiment, the barrel 2 rotates synchronously with the cable drum 1. The driving shaft may include a main shaft portion 12 and a spring shaft portion 13. The spring shaft portion 13 is disposed within the barrel 2. Each of the main shaft portion 12 and the spring shaft portion 13 has a matching connection end. For example, the connection end of the main shaft portion 12 may be a cylindrical protrusion, while the connection end of the spring shaft portion 13 may be a cylindrical recess of the same size as the cylindrical protrusion. Through the mating installation of the connection ends, the main shaft portion 12 and the spring shaft portion 13 together form the driving shaft. The driving shaft and the barrel 2 are connected by a bearing, enabling relative rotation between the driving shaft and the barrel 2.

[0030] The driving shaft drive device drives the driving shaft to rotate in a preset positive direction, which in turn drives the mainspring shaft to rotate. When the mainspring shaft rotates, it compresses the mainspring 11. When the mainspring 11 releases its elastic potential energy, it drives the mainspring box 2 to rotate in a preset positive direction, thereby driving the cable drum 1 to rotate and reel in the cable.

[0031] When winding the wire, the operator periodically drives the active shaft drive device, causing the active shaft to rotate periodically. Without a clockwork mechanism, each time the periodic rotation stops, the cable will be impacted due to inertia. The intensity of this impact is related to the rotation speed of the active shaft. The higher the rotation speed, the greater the impact, and the cable is easily damaged. Therefore, this embodiment uses a clockwork mechanism to convert the rotational kinetic energy of the active shaft into the elastic potential energy of the clockwork 11, preventing the impact of the periodic driving of the active shaft on the cable during winding, making the winding process smoother. Moreover, due to the protection of the cable by the clockwork mechanism, the rotation speed of the active shaft can be increased, thereby improving the winding efficiency.

[0032] Considering that the mainspring 11 can only be compressed when the active shaft rotates in the preset forward direction, the mainspring 11 will be relaxed when the active shaft driving device is in the return stroke, that is, when the active shaft rotates in the preset reverse direction, reducing the elastic potential energy accumulated in the mainspring 11 and affecting the winding efficiency. Therefore, the active shaft driving device needs to not drive the active shaft to rotate during the return stroke.

[0033] refer to Figure 2 As an optional embodiment, the driving shaft driving device includes a gear shaft 14, a gear plate 3 and a one-way bearing 15.

[0034] The gear shaft 14 is meshed with the gear disc 3. The inner ring and outer ring of the one-way bearing 15 are connected to the gear shaft 14 and the driving shaft respectively.

[0035] When the toothed disc 3 drives the gear shaft 14 to rotate in the preset forward direction, the one-way bearing 15 is in a locked state, and the driving shaft rotates along with the gear shaft 14. When the toothed disc 3 drives the gear shaft 14 to rotate in the preset reverse direction, the one-way bearing 15 is in a free rotation state, and the driving shaft does not rotate.

[0036] In this way, through the one-way locking effect of the one-way bearing 15, when the gear shaft 14 rotates in the preset forward direction, the driving shaft is driven to rotate, and when the gear shaft 14 rotates in the preset reverse direction, the driving shaft does not rotate with the gear shaft 14. Therefore, when the driving shaft driving device performs a return stroke, the driving shaft is not driven to rotate, thereby avoiding affecting the take-up efficiency.

[0037] Considering that the cable retracting device needs to pay out the wires and manually reel in the wires, the cable retracting device requires a manual reeling and reeling device.

[0038] Figure 3 A bottom view of the cable retracting device according to an embodiment of the present application is shown.

[0039] refer to Figure 3 As an optional embodiment, the cable retracting and releasing device further includes a screw 25, a nut 26, a wire outlet 27, a handwheel 4, a screw synchronous wheel 28, a roller synchronous wheel 16 and a toothed belt 29.

[0040] Nut 26 is coupled to lead screw 25. A cable outlet 27 is fixed to nut 26, through which the cable passes. Handwheel 4 and lead screw synchronizing pulley 28 are respectively fixed to each end of lead screw 25. Drum synchronizing pulley 16 is connected to the end of cable drum 1 away from barrel 2. A toothed belt 29 is fitted over lead screw synchronizing pulley 28 and drum synchronizing pulley 16, meshing with these pulleys, respectively.

[0041] In this embodiment, the rotation of the handwheel 4 drives the lead screw 25, which in turn drives the lead screw synchronous pulley 28, the toothed belt 29, and the drum synchronous pulley 16, thereby driving the cable drum 1 to rotate, thereby paying out or taking up the cable. Furthermore, the rotation of the lead screw 25 drives the nut 26 to move along the lead screw 25, so that the cable outlet 27 fixed to the nut 26 is always aligned with the cable arranged on the cable drum 1.

[0042] In this way, the wire can be manually paid out or taken up by rotating the hand wheel 4, and the wire outlet 27 is moved as the cable drum 1 rotates through the combination of the lead screw 25 and the nut 26, ensuring that the wire outlet 27 is always aligned with the arranged cables.

[0043] Considering that when the cable retracting device is in the manual pay-out or take-up state, misoperation of the active shaft drive device may affect the manual operation of the cable retracting device, the cable retracting device also needs to be provided with a locking device for the active shaft drive device.

[0044] Figure 4 A front view of a cable retracting device according to an embodiment of the present application is shown. Figure 5 A side view of a locking device of a driving shaft drive device according to an embodiment of the present application is shown. Figure 6A rear view of the locking device of the active shaft drive device according to an embodiment of the present application is shown.

[0045] refer to Figure 4-Figure 6 As an optional embodiment, the cable retracting and releasing device further includes a pressure plate 5, a driving shaft bracket 6, a first spring 31, a locking rod 36, a second spring, a locking pressure rod 32, a locking connecting rod 33, a rod barrel 34, a pressure rod 7, and a shift lever 37. The pressure plate 5 is provided with a locking seat 35, which has a through hole adapted to fit the locking rod 36.

[0046] The gear plate 3 is fixed on the pressure plate 5. The driving shaft is connected to the driving shaft bracket 6 through a bearing. The pressure plate 5 is hinged to the driving shaft bracket 6. The two ends of the first spring 31 are respectively connected to the pressure plate 5 and the driving shaft bracket 6. The locking rod 36 and the second spring are placed in the locking seat 35, and the second spring is sleeved on the outer wall of the locking rod 36. The rod barrel 34 is fixed on the pressure plate 5. The rod barrel 34 is provided with a connecting rod accommodating groove, and the locking connecting rod 33 is placed in the connecting rod accommodating groove. One end of the locking pressure rod 32 is connected to the locking connecting rod 33, and the other end abuts the locking rod 36. The pressure rod 7 can be inserted into the rod barrel 34. The gear rod 37 is fixed on the side of the pressure plate 5 facing the driving shaft bracket 6.

[0047] In this embodiment, the driving shaft is supported by a driving shaft bracket 6. A pressure plate shaft can be provided on the driving shaft bracket 6, and the pressure plate 5 is mounted on the pressure plate shaft and can rotate around the pressure plate shaft. The cable retraction and unloading device may also include a gear shaft bracket 47 and a mainspring barrel bracket 48. The gear shaft bracket 47 is fixed to the driving shaft bracket 6 and connected to the gear shaft 14 via a bearing. The mainspring barrel bracket 48 is fixed to the driving shaft bracket 6 and connected to the mainspring barrel 2 via a bearing.

[0048] When the pressure rod 7 is not inserted into the rod barrel 34, the second spring supports the locking rod 36, and the locking rod 36 does not extend out of the through hole. The first spring 31 drives the pressure plate 5 to rotate until the shift rod 37 abuts the driving shaft bracket 6. At this time, the sprocket 3 and the gear shaft 14 are not in contact. When the pressure rod 7 is inserted into the rod barrel 34, the locking link 33 is pushed out of the link receiving groove, and the locking pressure rod 32 is driven by the leverage to press the locking rod 36. The locking rod 36 extends out of the through hole, and the locking rod 36 limits the rotation angle of the pressure plate 5, so that the shift rod 37 cannot abut the driving shaft bracket 6, so that the sprocket 3 continues to mesh with the gear shaft 14 during the rotation process.

[0049] In this way, when the automatic winding function is not in use, the pressure rod 7 is pulled out, and the pressure plate 5 will rotate under the action of the first spring 31, so that the toothed disc 3 and the gear shaft 14 are not in contact. When the automatic winding function is used, the pressure plate 5 can be manually rotated to make the toothed disc 3 engage with the gear shaft 14, and then the pressure rod 7 is inserted into the rod barrel 34, so that the locking rod 36 extends out of the through hole, limiting the rotation angle of the pressure plate 5. During the rotation of the pressure plate 5, the toothed disc 3 is always engaged with the gear shaft 14. In addition, the first spring 31 can play the role of automatic return. After the driving shaft is driven to rotate by rotating the pressure rod 7, the pressure rod 7 is released. The pressure rod 7 will automatically rotate to the position where the locking rod 36 abuts the driving shaft bracket 6 under the elastic force of the first spring 31, that is, it automatically returns.

[0050] Considering that automatic wire reeling and manual wire pay-out are different working states of the cable reeling device, and the two working states cannot exist at the same time, a working state switching device needs to be provided in the cable reeling device.

[0051] Figure 7 The structure of the working state switching device of an embodiment of the present application is shown.

[0052] refer to Figure 7 As an optional embodiment, the cable retracting and releasing device further includes a ratchet 38 , a shift fork 39 and a third spring 40 .

[0053] The ratchet 38 is sleeved on the outer wall of the driving shaft. The shift fork 39 is hinged to the driving shaft bracket 6. The two ends of the third spring 40 are respectively connected to the shift fork 39 and the driving shaft bracket 6.

[0054] In this embodiment, the shift fork 39 may include a first portion 39 - 1 for abutting the ratchet 38 , a second portion 39 - 2 for abutting the shift lever 37 , a third portion 39 - 3 for connecting the spring, and a fourth portion for articulating the driving shaft bracket 6 .

[0055] When the pressure rod 7 is not inserted into the rod barrel 34, the shift rod 37 drives the shift fork 39 to rotate, and the shift fork 39 does not contact the ratchet 38. At this time, the spring mechanism does not work, the driving shaft can rotate freely, and the cable drum 1 can rotate freely, and the cable retraction device is in the manual pay-off and take-up state. When the pressure rod 7 is inserted into the rod barrel 34, the shift rod 37 does not contact the shift fork 39, and the third spring 40 drives the shift fork 39 to rotate, causing the shift fork 39 to abut the ratchet 38. At this time, the driving shaft can only rotate in the preset positive direction, the spring mechanism takes effect, and the cable retraction device is in the automatic take-up state.

[0056] In this way, by setting the shift fork 39, when the pressure rod 7 is not inserted into the rod barrel 34, the cable retracting device is in a manual wire-releasing and wire-winding state, and when the pressure rod 7 is inserted into the rod barrel 34, the cable retracting and wire-releasing device is in an automatic wire-winding state.

[0057] Considering that during the operation of the cable retracting and releasing device, when the cable stops moving, the cable drum 1 continues to rotate due to inertia, which may cause problems such as cable misalignment, loose winding, and cable falling out, the cable retracting and releasing device needs to be equipped with a drum damping device.

[0058] return Figure 2 As an optional embodiment, the cable retracting and releasing device further includes a rotating shaft 17, a rotating shaft bracket 8, a shift fork plate 18, a first damping plate 19, a second damping plate 20, a damping pressure plate 21, a damping baffle 22 and a first indexing pin 23.

[0059] The ends of the rotating shaft 17 are connected to the cable drum 1 and the drum synchronization wheel 16, respectively. The rotating shaft 17 is connected to the rotating shaft bracket 8 via bearings. The damping pressure plate 21, the first damping plate 19, the shift fork plate 18, the second damping plate 20, and the damping stop plate 22 are sequentially mounted on the rotating shaft 17. The shift fork plate 18 has at least one opening that fits the pin head of the first indexing pin 23. The first indexing pin 23 is fixed to the rotating shaft bracket 8, and the pin head of the first indexing pin 23 can extend into the opening of the shift fork plate 18 when extended.

[0060] In this embodiment, a compression spring and a retaining spring can be respectively provided on the side of the damping pressure plate 21 and the damping baffle 22 away from the damping plate to compress the damping plate. The first damping plate 19, the shift fork plate 18, and the second damping plate 20 are all clearance-fitted with the rotating shaft 17, so that the first damping plate 19, the shift fork plate 18, and the second damping plate 20 can all rotate freely about the rotating shaft 17. The damping pressure plate 21 and the damping baffle 22 are both fixed to the rotating shaft 17 and rotate synchronously with the rotating shaft 17.

[0061] When using the drum damping device, the pin head of the first indexing pin 23 is pushed out so that the pin head is inserted into the opening of the fork plate 18, and then the first damping plate 19 and the second damping plate 20 contact the damping pressure plate 21 and the damping baffle 22 respectively. Friction is generated between the first damping plate 19 and the damping pressure plate 21, and between the second damping plate 20 and the damping baffle 22, thereby stopping the rotation of the rotating shaft 17 and driving the cable drum 1 to stop rotating.

[0062] In this way, when the cable drum 1 needs to stop rotating, the first indexing pin 23 can be used to lock the shift fork 18, so that the cable drum 1 stops rotating under the action of friction, thereby preventing the cable drum 1 from rotating freely under the action of inertia, causing problems such as cable knotting and misalignment.

[0063] Considering that the cable retracting and releasing device needs to be completely locked when the cable is not being released or retracted, the cable retracting and releasing device requires an overall locking device.

[0064] refer to Figure 2As an optional embodiment, the cable retracting and unretracting device further includes a second indexing pin 24. The mainspring barrel 2 is provided with at least one pin hole adapted to fit the pin head of the second indexing pin 24.

[0065] The second indexing pin 24 is fixed on the driving shaft bracket 6 , and the pin head of the second indexing pin 24 can extend into the pin hole of the clockwork barrel 2 when extended.

[0066] In this way, the clockwork box 2 can be locked by the second indexing pin 24, thereby locking the cable drum 1, so that the cable drum 1 cannot rotate and cannot pay out or take up the wire.

[0067] return Figure 1 As an optional embodiment, the cable retracting and releasing device further includes at least one support tube 9. Both ends of the support tube 9 are connected to the driving shaft bracket 6 and the rotating shaft bracket 8 respectively.

[0068] In this embodiment, the number of support tubes 9 can be four, located at four corresponding end points of the driving shaft bracket 6 and the rotating shaft bracket 8. The manual wire retracting and releasing device can also include a screw fork 30, which is mounted on the support tube 9 closest to the screw 25 and is used to guide the movement of the nut 26 to prevent the nut 26 from rotating with the screw 25.

[0069] In this way, the driving shaft bracket 6 and the rotating shaft bracket 8 are connected by the support tube 9 to support the driving shaft bracket 6 and the rotating shaft bracket 8.

[0070] Considering that the cable retracting and unwinding equipment needs to be carried by personnel, the cable retracting and unwinding equipment also requires a back frame structure.

[0071] Figure 8 The structure of the back frame structure of an embodiment of the present application is shown.

[0072] refer to Figure 8 As an optional embodiment, the cable retracting device further includes a back frame 10 , a first fixing block 41 , a second fixing block 42 and a lock 43 .

[0073] The back frame 10 is provided with a hook 44 and a fixing seat 45 adapted to the support tube 9; the first fixing block 41 and the second fixing block 42 are arranged in the fixing seat 45, and the first fixing block 41 and the second fixing block 42 are respectively provided with a locking part, and the lock buckle 43 is hinged to the locking part of the second fixing block 42.

[0074] Figure 9 A schematic diagram showing the principle of the first fixing block 41 and the second fixing block 42 being sleeved on the periphery of the support tube 9 in an embodiment of the present application is shown.

[0075] refer to Figure 9When the support tube 9 enters the fixing seat 45 along the direction of the arrow in the figure, the support tube 9 presses the arrow-pointing parts of the first fixing block 41 and the second fixing block 42, so that the first fixing block 41 and the second fixing block 42 are sleeved on the outer periphery of the support tube 9, and then the rotating lock 43 can lock the first fixing block 41 and the second fixing block 42.

[0076] In this embodiment, the cable retracting device may further include an integrated shoulder pad, which is fixed to the back frame 10 and faces the person. The first fixing block 41 may be connected to the back frame 10 via a spring, and the first fixing block 41 may be in an open state due to the tension of the spring.

[0077] When installing the back frame structure, first place one support tube 9 into the hook 44, then place the other support tube 9 into the fixing seat 45, and the first fixing block 41 and the second fixing block 42 are sleeved on the outer periphery of the support tube 9 under the squeezing action of the support tube 9, and then rotate the lock buckle 43 to lock the first fixing block 41 and the second fixing block 42 to complete the installation of the back frame structure.

[0078] In this way, by installing the back frame structure, the cable retracting and releasing device can be carried by people.

[0079] return Figure 3 As an optional embodiment, the cable retracting and releasing device further includes a fixing hoop 46 . The fixing hoop 46 is fixed on the rotating shaft 17 .

[0080] In this way, the cable plug can be fixed by the fixing hoop 46, so that the cable retracting device can carry the cable plug at the same time, avoiding the need for people to carry the cable plug separately.

[0081] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application (including the claims) is limited to these examples. Within the scope of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0082] While the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0083] The embodiments of the present application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of this application.

Claims

1. A cable retracting device, characterized in that: include: Cable drums, spring barrels, springs, drive shafts, and drive shaft drives for routing cables; The cable drum is sleeved on the periphery of the clockwork box; The mainspring is arranged inside the mainspring box, the inner end of the mainspring is connected to the driving shaft, and the outer end of the mainspring is fixed to the mainspring box; The driving shaft driving device is connected to the driving shaft; The driving shaft driving device drives the driving shaft to rotate in a preset positive direction, and the driving shaft drives the mainspring to be compressed; The driving shaft driving device includes a gear shaft, a gear plate and a one-way bearing; The gear shaft is meshed with the gear disc; the inner ring and outer ring of the one-way bearing are connected to the gear shaft and the driving shaft respectively; When the gear wheel drives the gear shaft to rotate along the preset positive direction, the one-way bearing is in a locked state, and the driving shaft rotates along with the gear shaft; When the toothed disc drives the gear shaft to rotate in a preset reverse direction, the one-way bearing is in a free rotation state, and the driving shaft does not rotate; Also includes: A pressure plate, a driving shaft bracket, a first spring, a locking rod, a second spring, a locking pressure rod, a locking connecting rod, a rod barrel, a pressure rod and a shift rod; the pressure plate is provided with a locking seat, and the locking seat is provided with a through hole adapted to the locking rod; The gear plate is fixed on the pressure plate; the driving shaft is connected to the driving shaft bracket through a bearing; the pressure plate is hinged to the driving shaft bracket; the two ends of the first spring are respectively connected to the pressure plate and the driving shaft bracket; the locking rod and the second spring are placed in the locking seat, and the second spring is sleeved on the outer wall of the locking rod; the rod barrel is fixed on the pressure plate; the rod barrel is provided with a connecting rod accommodating groove, the locking connecting rod is placed in the connecting rod accommodating groove, one end of the locking pressure rod is connected to the locking connecting rod, and the other end abuts the locking rod; the pressure rod can be inserted into the rod barrel; the gear lever is fixed on the side of the pressure plate facing the driving shaft bracket; When the pressure rod is not inserted into the rod barrel, the second spring supports the locking rod, and the locking rod does not extend out of the through hole. The first spring drives the pressure plate to rotate until the gear lever abuts against the active shaft bracket, and the toothed plate is not in contact with the gear shaft; when the pressure rod is inserted into the rod barrel, the locking link is displaced, driving the locking pressure rod to press the locking rod, and the locking rod extends out of the through hole, and the locking rod limits the rotation angle of the pressure plate, so that the toothed plate continues to mesh with the gear shaft during the rotation process; Also includes: ratchet, fork and third spring; The ratchet is sleeved on the outer wall of the driving shaft; the shift fork is hinged to the driving shaft bracket; the two ends of the third spring are respectively connected to the shift fork and the driving shaft bracket; When the pressure rod is not inserted into the rod barrel, the shift rod drives the shift fork to rotate, and the shift fork does not contact the ratchet; when the pressure rod is inserted into the rod barrel, the shift rod does not contact the shift fork, the third spring drives the shift fork to rotate, and the shift fork abuts the ratchet to prevent the driving shaft from rotating in the preset reverse direction.

2. The cable retracting device according to claim 1, characterized in that: Also includes: Lead screw, nut, wire outlet, hand wheel, lead screw synchronous wheel, drum synchronous wheel and toothed belt; The nut is cooperatively connected with the lead screw; the wire outlet is fixed on the nut, and the cable passes through the wire outlet; the handwheel and the lead screw synchronous wheel are respectively fixed at both ends of the lead screw; the drum synchronous wheel is connected to the end of the cable drum away from the clockwork box; the toothed belt is mounted on the lead screw synchronous wheel and the drum synchronous wheel, and meshes with the lead screw synchronous wheel and the drum synchronous wheel respectively.

3. The cable retracting device according to claim 1, characterized in that: Also includes: A rotating shaft, a rotating shaft bracket, a shift fork plate, a first damping plate, a second damping plate, a damping pressure plate, a damping baffle and a first indexing pin; The rotating shaft is connected to the cable drum; the rotating shaft is connected to the rotating shaft bracket through a bearing; the damping pressure plate, the first damping plate, the shift fork plate, the second damping plate and the damping baffle are sequentially mounted on the rotating shaft; the shift fork plate is provided with at least one opening adapted to the pin head of the first indexing pin, the first indexing pin is fixed on the rotating shaft bracket, and the pin head of the first indexing pin can extend into the opening of the shift fork plate when extended.

4. The cable retracting device according to claim 1, characterized in that: It also includes a second indexing pin; the mainspring box is provided with at least one pin hole adapted to fit the pin head of the second indexing pin; The second indexing pin is fixed on the driving shaft bracket, and the pin head of the second indexing pin can extend into the pin hole of the clockwork box when it is extended.

5. The cable retracting device according to claim 3, characterized in that: Also comprising at least one support tube; The two ends of the support tube are respectively connected to the driving shaft bracket and the rotating shaft bracket.

6. The cable retracting device according to claim 5, characterized in that: Also includes: Back frame, first fixing block, second fixing block and locking buckle; The back frame is provided with a hook and a fixing seat adapted to the support tube; the first fixing block and the second fixing block are arranged in the fixing seat, and the first fixing block and the second fixing block are respectively provided with a locking part, and the lock buckle is hinged to the locking part of the second fixing block; when the support tube is located in the fixing seat, the first fixing block and the second fixing block are sleeved on the outer periphery of the support tube, and rotating the lock buckle can lock the first fixing block and the second fixing block.

7. The cable retracting device according to claim 3, characterized in that: Also included is a fixing hoop; The fixing hoop is fixed on the rotating shaft.

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