Cable winding and unwinding method of folding mechanism

Abstract

The invention relates to a cable take-up and pay-off method for a folding mechanism, belongs to the technical field of load transportation equipment, and solves the problem that in the prior art, redundant cables at the folding position of equipment are stacked disorderly. The method comprises the following steps that S1, a folding mechanism is unlocked; s2, the folding angle of the folding mechanism is adjusted, and meanwhile the cable is taken up and paid off; and S3, locking the folding mechanism. According to the cable folding mechanism, the cable is wound and unwound while angle adjustment is achieved, the cable is made to be in the needed length all the time, it is avoided that the cable with the redundant length is disorderly stacked in the folding mechanism, it is prevented that the cable with the redundant length clamps the rotating shaft to affect rotation or the cable is broken by the rotating shaft during folding or unfolding, and then it is avoided that folding or unfolding movement of equipment is affected.

Description

Technical Field

[0001] The present invention relates to the technical field of load transport equipment, and in particular to a cable folding method of a folding mechanism. Background Art

[0002] Usually, load transport equipment has a large volume and size, and various control parts need to be connected with cables, and the cables generally have a certain length. During the transportation of the equipment, it needs to be folded or unfolded, but during the folding or unfolding process, the folding part of the equipment will store the excess length of the cable to meet the requirement of maintaining the electrical connection of the various control parts of the equipment when the equipment is folded or unfolded.

[0003] At present, in most existing equipment, excess cables are piled up and stored at the folding part of the equipment. This can prevent the excess cables from being exposed and ensure that the cables always have the required length. However, when the excess cables are piled up and stored at the folding part of the equipment, there is a risk that the shaft will be stuck when the equipment is folded or unfolded, affecting the rotation, or the cables will be broken by the shaft, affecting the folding or unfolding movement of the equipment. Summary of the invention

[0004] In view of the above analysis, the present invention aims to provide a cable retracting device with a folding mechanism, so as to solve the problem of messy accumulation of cables with excess length at the folding part of the equipment in the prior art.

[0005] The purpose of the present invention is mainly achieved through the following technical solutions:

[0006] A folding mechanism cable folding method, comprising the following steps:

[0007] Step S1: unlocking the folding mechanism;

[0008] Step S2: adjusting the folding angle of the folding mechanism and retracting and releasing the cables at the same time;

[0009] Step S3: Lock the folding mechanism.

[0010] Furthermore, the step S1 further includes: rotating the rotating shaft to simultaneously unlock the angle adjustment mechanism and the cable retracting mechanism, thereby unlocking the folding mechanism.

[0011] Furthermore, step S1 also includes: rotating the shaft so that the push column on the shaft slides in the spiral groove of the locking plate, thereby driving the locking plate to slide in a direction away from the angle adjustment plate, so that the second gear teeth on the locking plate are separated from the first gear teeth on the angle adjustment plate.

[0012] Furthermore, step S1 also includes: the rotating shaft rotates and drives the turntable to rotate at the same time, and drives the rocker arm to move, thereby driving the connecting rod to rotate with the pin shaft set in the middle of the connecting rod as the fulcrum, and then driving the chuck to rotate with the pin shaft connected to the fixed cylinder as the fulcrum, so that the ratchet set on the chuck is separated from the ratchet wheel.

[0013] Furthermore, the step S2 also includes: adjusting the folding angle of the folding mechanism, and adjusting the length of the cable through the cable retracting mechanism, so that the excess length of the cable always maintains the required length.

[0014] Furthermore, the step S3 also includes: releasing the torque of the handle, and the handle drives the rotating shaft to rotate in the opposite direction under the action of the return elastic force of the first return spring in the angle adjustment mechanism, so that the angle adjustment mechanism and the cable retracting mechanism are locked at the same time, thereby locking the folding mechanism.

[0015] Furthermore, step S3 also includes: the shaft rotates in the opposite direction, so that the push column on the shaft slides in the spiral groove of the locking plate, and then drives the locking plate to slide in the direction close to the angle adjustment plate, so that the second gear teeth on the locking plate engage with the first gear teeth on the angle adjustment plate.

[0016] Furthermore, step S3 also includes: the rotating shaft rotates in the opposite direction and drives the rotating disk to rotate in the opposite direction at the same time, and drives the rocker arm to move, thereby driving the connecting rod through the rocker arm to rotate in the opposite direction with the pin shaft set in the middle of the connecting rod as the fulcrum, and then driving the chuck to rotate in the opposite direction with the pin shaft connected to the fixed cylinder as the fulcrum, so that the ratchet set on the chuck engages with the ratchet wheel.

[0017] Furthermore, the step S3 also includes: when the angle adjustment mechanism is locked, the compression spring compresses the second gear teeth against the first gear teeth under the action of elastic force.

[0018] Furthermore, the cable retracting and releasing mechanism includes a locking assembly, a ratchet, a retracting post and a second return spring.

[0019] Furthermore, the locking assembly includes a turntable, a rocker arm, a connecting rod and a chuck.

[0020] The technical solution of the present invention can achieve at least one of the following effects:

[0021] (1) The present invention provides a folding mechanism cable retracting method, comprising the following steps: step S1: unlocking the folding mechanism; step S2: adjusting the folding angle of the folding mechanism while retracting the cable; step S3: locking the folding mechanism. The present invention achieves the retracting of the cable while adjusting the angle, so that the cable is always at the required length, avoiding the messy accumulation of excess length of cable in the folding mechanism, preventing the excess length of cable from getting stuck on the shaft and affecting the rotation when folding or unfolding, or preventing the cable from being cut by the shaft, thereby avoiding affecting the folding or unfolding movement of the equipment.

[0022] (2) The present invention provides a cable retracting method for a folding mechanism, wherein the handle is moved to drive the rotating shaft to rotate, so that the angle adjustment mechanism and the cable retracting mechanism are unlocked at the same time, thereby achieving the unlocking of the folding mechanism.

[0023] (3) The present invention provides a folding mechanism cable retracting method. After the locking state of the locking mechanism is released, the folding angle of the folding mechanism is adjusted to make the equipment meet the actual use needs. While adjusting the folding angle of the folding mechanism, the length of the cable is adjusted through the cable retracting mechanism to keep the excess length of the cable at the required length at all times, thereby preventing the equipment from getting stuck on the shaft and affecting the rotation, or the cable from being cut off by the shaft when folding or unfolding, thereby affecting the folding or unfolding movement of the equipment.

[0024] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the subsequent description, and some advantages can become obvious from the description, or can be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like components throughout the drawings.

[0026] Figure 1 This is a flow chart of cable retracting and releasing of the folding mechanism in Embodiment 1 of the present invention;

[0027] Figure 2 The structure of the folding mechanism in Example 2 of the present invention is shown in FIG. Figure 1 ;

[0028] Figure 3 The structure of the folding mechanism in Example 2 of the present invention is shown in FIG. Figure 2 ;

[0029] Figure 4 This is a schematic diagram of the structure of the rotating shaft in Embodiment 2 of the present invention;

[0030] Figure 5 The structure of the angle adjustment mechanism in Example 2 of the present invention is shown in FIG. Figure 1 ;

[0031] Figure 6 The structure of the angle adjustment mechanism in Example 2 of the present invention is shown in FIG. Figure 2 ;

[0032] Figure 7 for Figure 6 Sectional view along line AA;

[0033] Figure 8 An exploded view of the angle adjustment mechanism in Embodiment 2 of the present invention;

[0034] Fig. 9 It is a schematic diagram of the structure of the fixed cylinder in Example 2 of the present invention;

[0035] Fig.10 Schematic diagram of the structure of the angle adjustment plate in Embodiment 2 of the present invention;

[0036] Fig.11 Schematic diagram of the structure of the locking plate in Embodiment 2 of the present invention;

[0037] Fig.12 The structure of the cable retracting mechanism in Embodiment 2 of the present invention is shown in FIG. Figure 1 ;

[0038] Fig.13 The structure of the cable retracting mechanism in Embodiment 2 of the present invention is shown in FIG. Figure 2 ;

[0039] Fig.14 The structure of the cable retracting mechanism in Embodiment 2 of the present invention is shown in FIG. Figure 3 .

[0040] Reference numerals:

[0041] 1-shell; 11-lower plate; 12-housing; 121-long slot;

[0042] 2-Handle;

[0043] 3-rotating shaft; 31-pushing column;

[0044] 4-angle adjustment mechanism; 41-fixed cylinder; 411-first shaft hole; 412-guide groove; 42-angle adjustment disk; 421-first gear; 422-second shaft hole; 43-first return spring; 44-locking disk; 441-locking disk body; 442-second gear; 443-third shaft hole; 444-guide block; 445-spiral slide groove; 45-rotating sleeve; 46-compression spring;

[0045] 5-cable retracting and releasing mechanism; 51-turntable; 52-rocker; 53-connecting rod; 54-chuck; 55-ratchet; 56-retracting column; 57-second return spring. DETAILED DESCRIPTION

[0046] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0047] Example 1

[0048] A specific embodiment of the present invention discloses a folding mechanism cable retracting method, such as Figure 1 As shown, the following steps are included:

[0049] Step S1: unlocking the folding mechanism;

[0050] Specifically, the handle 2 is moved to drive the rotating shaft 3 to rotate, so that the angle adjustment mechanism 4 and the cable retracting mechanism 5 are unlocked at the same time, thereby realizing the unlocking of the folding mechanism;

[0051] Further, the handle 2 is turned to rotate the shaft 3, so that the push column 31 on the shaft 3 slides in the spiral groove 445 of the locking plate 44, and then drives the locking plate 44 to slide in the direction away from the angle adjustment plate 42, so that the second gear teeth 442 on the locking plate 44 are separated from the first gear teeth 421 on the angle adjustment plate 42; when the shaft 3 is rotated 90°, the second gear teeth 442 on the locking plate 44 are completely separated from the first gear teeth 421 on the angle adjustment plate 42, that is, the locking plate 44 releases the lock on the angle adjustment plate 42, and the locking plate 44 is locked. The angle adjustment mechanism 4 is now unlocked; at the same time, the rotating shaft 23 rotates to drive the rotating disk 51 to rotate, and drives the swing rod 52 to move, so that the swing rod 52 drives the connecting rod 53 to rotate with the pin shaft set in the middle of the connecting rod 53 as a fulcrum, and then drives the chuck 54 to rotate with the pin shaft connected to the fixed cylinder 41 as a fulcrum, so that the ratchet set on the chuck 54 is separated from the ratchet 55; when the rotating shaft 3 rotates 90°, the ratchet on the chuck 54 is completely separated from the ratchet 55, that is, the chuck 54 releases the lock on the ratchet 55, and the cable retracting mechanism 5 is unlocked;

[0052] Step S2: adjusting the folding angle of the folding mechanism and retracting and releasing the cables at the same time;

[0053] Specifically, after releasing the locking state of the folding mechanism, the folding angle of the folding mechanism is adjusted to make the equipment meet the actual use needs. While adjusting the folding angle of the folding mechanism, the length of the cable is adjusted through the cable retracting mechanism 5, so that the excess length of the cable always maintains the required length, so as to avoid the equipment getting stuck on the shaft and affecting the rotation when folding or unfolding, or the cable being broken by the shaft, affecting the folding or unfolding movement of the equipment;

[0054] Furthermore, when the folding mechanism is unfolded, the equipment is adjusted to the desired unfolding angle; at the same time, during the unfolding process, the cable wound and stored on the take-up post 56 is stretched, thereby driving the take-up post 56 disposed on the ratchet 55 to rotate, releasing the cable, and adjusting the cable to the desired length, without causing the excess length of the cable to hinder the unfolding movement of the folding mechanism; in addition, the rotation of the take-up post 56 simultaneously drives the ratchet 55 to rotate, causing the second return spring 57 to deform and store the return elastic potential energy, that is, the second return spring 57 will continue to apply a return elastic force to the ratchet 55 after deformation;

[0055] Furthermore, when the folding mechanism is folded, the equipment is adjusted to a desired folding angle; at the same time, the cable will be loosened during the folding process, and the ratchet 55 will rotate in the opposite direction under the action of the resetting elastic force of the second resetting spring 57, thereby driving the take-up post 56 disposed on the ratchet 55 to rotate in the opposite direction, and then the loosened cable is wound and stored on the take-up post 56, which can prevent the excess length of the cable from being randomly accumulated in the housing 1 and affecting the folding movement of the folding mechanism;

[0056] Compared with the prior art, when the folding mechanism is folded or unfolded, the wire wheel take-up mechanism 5 can retract and release the wires, so that the wires are always at the required length, avoiding the messy accumulation of wires of excess length in the folding mechanism, preventing the wires of excess length from getting stuck on the shaft and affecting the rotation or the wires from being broken by the shaft when folding or unfolding, thereby avoiding affecting the folding or unfolding movement of the equipment;

[0057] Step S3: locking the folding mechanism;

[0058] Specifically, after the folding mechanism is unfolded or folded into place, the torque of the handle 2 is released, and the handle 2 drives the rotating shaft 3 to rotate in the opposite direction under the action of the return elastic force of the first return spring 43 in the angle adjustment mechanism 4, so that the angle adjustment mechanism 4 and the cable retracting mechanism 5 are locked at the same time, thereby realizing the locking of the folding mechanism;

[0059] Further, after the handle 2 is released, the handle 2 drives the rotating shaft 3 to rotate in the opposite direction under the action of the return elastic force of the first return spring 43 in the angle adjustment mechanism 4, so that the pushing column 31 on the rotating shaft 3 slides in the spiral groove 445 of the locking plate 44, and then drives the locking plate 44 to slide in the direction close to the angle adjustment plate 42, so that the second gear teeth 442 on the locking plate 44 mesh with the first gear teeth 421 on the angle adjustment plate 42; when the rotating shaft 3 rotates in the opposite direction by 90°, the second gear teeth 442 on the locking plate 44 fully mesh with the first gear teeth 421 on the angle adjustment plate 42, that is, the locking plate 44 locks the angle adjustment plate 42, and the angle adjustment mechanism 4 is locked;

[0060] At the same time, the rotating shaft 23 rotates in the opposite direction and drives the rotating disk 51 to rotate in the opposite direction, and drives the swing rod 52 to move, thereby driving the connecting rod 53 to rotate in the opposite direction through the swing rod 52 with the pin shaft set in the middle of the connecting rod 53 as the fulcrum, and then drives the chuck 54 to rotate in the opposite direction with the pin shaft connected to the fixed cylinder 41 as the fulcrum, so that the ratchet set on the chuck 54 is engaged with the ratchet 55; when the rotating shaft 3 rotates in the opposite direction by 90°, the ratchet on the chuck 54 is fully engaged with the ratchet 55, that is, the chuck 54 locks the ratchet 55, so that the cable retracting mechanism 5 is locked;

[0061] Furthermore, when the angle adjustment mechanism 4 is locked, the second gear teeth 442 and the first gear teeth 421 are further compressed under the elastic force of the compression spring 45, which can prevent the second gear teeth 442 and the first gear teeth 421 from loosening when in meshing state, making the locking of the angle adjustment mechanism 4 more reliable.

[0062] Example 2

[0063] In another specific embodiment of the present invention, a folding mechanism for embodiment 1 is disclosed. The folding mechanism can be used in equipment involving folding, such as transport vehicles, exoskeleton mechanisms, individual equipment (such as individual power-assisted tractors), cargo transportation equipment, emergency rescue equipment, etc. It can also be slightly improved and used for folding vehicles, bicycles, baby carriages, wheelchairs and other products. This embodiment is specifically described using the individual power-assisted tractor as an example. The folding mechanism is rotatably connected to the upper bearing device of the individual power-assisted tractor and fixedly connected to the lower bearing device of the individual power-assisted tractor; Figure 2 and Figure 3 As shown, the folding mechanism includes a shell 1, a rotating shaft 3, an angle adjustment mechanism 4 and a cable retracting mechanism 5, the shell 1 is fixedly connected to the lower bearing device, and the upper bearing device is fixedly connected to the angle adjustment mechanism 4; the shell 1 is cylindrical, and the angle adjustment mechanism 4 is provided in two groups, which are symmetrically fixedly installed at both ends of the shell 1; the rotating shaft 3 is passed through the two groups of angle adjustment mechanisms 4 and is rotatably connected to the angle adjustment mechanisms 4; the cable retracting mechanism 5 is arranged in the shell 1 and is connected to the rotating shaft 3 at the same time; rotating the rotating shaft 3 can make the angle adjustment mechanism 4 and the cable retracting mechanism 5 unlock or lock synchronously, so that the folding mechanism can adjust the angle while retracting the cable, so that the cable is always at the required length, avoiding the messy accumulation of cables of excess length in the folding mechanism, preventing the cables of excess length from getting stuck in the rotating shaft and affecting the rotation or the cables from being broken by the rotating shaft when folding or unfolding, thereby avoiding affecting the folding or unfolding movement of the equipment.

[0064] Preferably, the folding mechanism also includes a handle 2, and two wrenches 2 are provided, which are respectively fixedly connected to the two ends of the rotating shaft 3. Turning the handle 2 drives the rotating shaft 3 to rotate, thereby driving the angle adjustment mechanism 4 and the cable retracting mechanism 5 to be unlocked or locked at the same time, thereby achieving the adjustment of the folding angle while retracting and releasing the cable.

[0065] Preferably, the shell 1 includes a lower plate 11 and an outer shell 12 fixedly mounted on the lower plate, wherein the lower plate 11 is fixedly connected to an external lower bearing device; the outer shell 12 is cylindrical and is used to protect other mechanisms and cables arranged in the outer shell 12; a long slot hole 121 is provided on the outer shell 12, and the long slot hole 121 extends along the circumferential direction of the outer shell 12, and is used to introduce the excess length of the external cable into the shell 1.

[0066] Preferably, if Figure 4 As shown, push columns 31 are respectively provided at both ends of the rotating shaft 3; the rotating shaft 3 is preferably square. Compared with a cylindrical shaft, a square shaft can be better connected to other components to prevent slipping when the rotating shaft 3 drives its components to rotate, and can better transmit motion.

[0067] Preferably, if Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the angle adjustment mechanism 4 includes a fixed cylinder 41, an angle adjustment disk 42, a first return spring 43, a locking disk 44 and a rotating sleeve 45. The locking disk 44 and the angle adjustment disk 42 are sequentially installed in the fixed cylinder 41 and are both connected to the rotating shaft 3. The locking disk 44 can lock or unlock the angle adjustment disk 42 according to the rotation of the rotating shaft 3; one end of the first return spring 43 is fixedly connected to the rotating shaft 3, and the other end is fixedly connected to the closed end of the fixed cylinder 41. The first return spring 43 is used to drive the rotating shaft 3 to rotate and restore to the initial state when the external torque is removed from the rotating shaft 3, and at the same time push the locking disk 44 to slide in the direction close to the angle adjustment disk 42, so that the locking disk 44 automatically locks the angle adjustment disk 42; compared with the prior art, the angle adjustment mechanism 4 is simple in structure, the locking disk 4 can unlock the angle adjustment disk 42 by rotating the rotating shaft 3, and the locking disk 4 can automatically lock the angle adjustment disk 42 by the first return spring 43, which is easy to operate and can realize the rapid angle adjustment of the folding mechanism.

[0068] Preferably, the fixing tube 41 is fixedly mounted at the end of the shell 12 in the housing 1; Fig. 9 As shown, one end of the fixed cylinder 41 is open and the other end is closed, forming an open end and a closed end; a first axial hole 411 is provided on the closed end, and a rotating sleeve 45 is installed in the first axial hole 411, and the rotating sleeve 45 is fixedly installed on the rotating shaft 3, so that the fixed cylinder 41 is rotatably connected to the rotating shaft 3 through the rotating sleeve 45; a guide groove 412 is also provided on the inner wall of the fixed cylinder 41 on one side close to the closed end, and the guide groove 412 extends along the axial direction of the fixed cylinder 41; in this embodiment, four guide grooves 412 are preferably arranged, and the four guide grooves 412 are evenly distributed along the circumference of the cylinder wall of the fixed cylinder 41.

[0069] Preferably, the angle adjustment disk 42 is rotatably mounted on the open end of the fixed cylinder 41, and one end surface is fixedly connected to the external upper bearing device; Fig.10As shown, a first gear tooth 421 is provided on the other end surface of the angle adjustment disk 42; a second shaft hole 422 is also provided on the angle adjustment disk 42, and a rotating sleeve 45 is installed in the second shaft hole 422. The rotating sleeve 45 is fixedly installed on the rotating shaft 3, so that the angle adjustment disk 42 is rotatably connected to the rotating shaft 3 through the rotating sleeve 45.

[0070] Preferably, the locking plate 44 is slidably connected to the fixed cylinder 41, and the locking plate 44 can only slide along the axial direction of the fixed cylinder 41; the locking plate 44 is mounted on the rotating shaft 3 and is slidably connected to the rotating shaft 3. By rotating the rotating shaft 3, the locking plate 44 can be pushed to slide along its axial direction in the fixed cylinder 41, so that the locking plate 44 can lock or unlock the angle adjustment plate 42.

[0071] Preferably, if Fig.11 As shown, the locking plate 44 includes a locking plate body 441, a second gear tooth 442, a third shaft hole 443, a guide block 444 and a spiral groove 445. The second gear tooth 442 is arranged on the end surface of the locking plate body 441 and is arranged corresponding to the first gear tooth 421 in the angle adjustment plate 42, and can be meshed with the first gear tooth 421. Through the meshing and separation of the second gear tooth 442 and the first gear tooth 421, the locking plate 44 can lock or unlock the angle adjustment plate 42; the guide block 444 is arranged at the edge of the locking plate body 441 and extends outwardly along the diameter direction of the locking plate body 441; the guide block 444 is arranged corresponding to the guide groove 412 on the inner wall of the fixed cylinder 41, and the guide block 444 is arranged corresponding to the guide groove 412 on the inner wall of the fixed cylinder 41. 44 can slide in the guide groove 412, and can be used to limit the circular rotation of the locking plate 44, so that the locking plate 44 can only slide in the axial direction of the fixed cylinder 41; in this embodiment, four guide blocks 444 are preferably provided, and the four guide blocks 444 are evenly arranged along the circumferential direction of the edge of the locking plate body 441, so that the four guide blocks 444 correspond to the four guide grooves 412 on the inner wall of the fixed cylinder 41, so that the guide blocks 444 can be inserted into the guide grooves 412 and can slide in the guide grooves 412; the four guide blocks 444 cooperate with the four guide grooves 412, so that the locking plate 44 can be evenly stressed when sliding along the axial direction of the fixed cylinder 41, thereby improving the smoothness of the sliding of the locking plate 44 in the fixed cylinder 41.

[0072] Preferably, the spiral groove 445 is arranged on the inner wall of the third shaft hole 443, and the spiral groove 445 cooperates with the push column 31 on the shaft 3. The shaft 3 is rotated to make the push column 31 slide in the spiral groove 445, thereby pushing the locking plate 44 to slide along its axis in the fixed cylinder 41, so that the second gear 442 can mesh with or separate from the first gear 421, so that the locking plate 44 can lock or unlock the angle adjustment plate 42; retaining rings are provided at both ends of the spiral groove 445, and the retaining rings are used to limit the sliding stroke of the push column 31 in the spiral groove 445; the preferred rotation angle of the shaft 3 in this embodiment is 9 0°, that is, when the shaft 3 rotates 90°, the second gear teeth 442 in the locking plate 44 can be pushed to fully engage or disengage with the first gear teeth 421; compared with the prior art, this embodiment cooperates with the pushing column 31 on the shaft 3 through the spiral groove 445, and rotates the shaft 3 to make the pushing column 31 slide in the spiral groove 445, thereby pushing the locking plate 44 to slide along its axis in the fixed cylinder 41, so that the second gear teeth 442 can engage or disengage with the first gear teeth 421, thereby realizing that the locking plate 44 locks or unlocks the angle adjustment plate 42. Its structure is simple and easy to operate, and the folding mechanism can be quickly folded or unfolded.

[0073] Preferably, the angle adjustment mechanism 4 also includes a compression spring 46, one end of the compression spring 46 is fixedly connected to the closed end of the fixed cylinder 41, and the other end is fixedly connected to the other end surface of the locking disk 44. The compression spring 46 is always in a compressed state, that is, the compression spring 46 always applies an elastic force to the locking disk 44, so that the second gear teeth 442 in the locking disk 44 and the first gear teeth 421 in the angle adjustment disk 42 are more tightly engaged, thereby preventing the second gear teeth 442 from loosening when engaging with the first gear teeth 421.

[0074] Preferably, the cross-sectional shape of the spiral groove 445 is preferably semicircular; the end of the pushing column 31 is preferably set to a hemispherical shape, so that the end of the pushing column 31 can fit better with the spiral groove 445, so that the pushing column 31 can slide more smoothly in the spiral groove 445, and thus the rotating shaft 3 can more smoothly push the locking plate 44 to slide along the axial direction of the fixed cylinder 41 when the rotating shaft 3 rotates; in this embodiment, the spiral grooves 445 are preferably provided with four, and the four spiral grooves 445 are evenly arranged along the circumference of the inner wall of the third shaft hole 443; four pushing columns 31 are provided on each end of the rotating shaft 3, and the four pushing columns 31 are symmetrically arranged on the four faces of the rotating shaft 3, and are correspondingly arranged with the four spiral grooves 445, and the four pushing columns 31 cooperate with the four spiral grooves 445, so that the rotating shaft 3 can be subjected to uniform force when pushing the locking plate 44 to slide along the axial direction of the fixed cylinder 41, thereby improving the smoothness of the rotating shaft 3 pushing the locking plate 44 to slide.

[0075] Preferably, if Fig.12 , Fig.13and Fig.14 As shown, the cable retracting mechanism 5 includes a locking assembly, a ratchet 55, a take-up post 56 and a second return spring 57. The locking assembly is used to lock or unlock the ratchet 55 according to the rotation of the rotating shaft 3; the ratchet 55 is rotatably mounted on the closed end of the fixed cylinder 41 in the angle adjustment mechanism 4; the take-up post 56 is fixedly mounted at the center of the end face of the ratchet 55, and the take-up post 56 is used to store or release the cable according to the rotation of the ratchet 55; the second return spring 57 is fixedly mounted on the other end face of the ratchet 55, one end of the second return spring 57 is fixedly connected to the ratchet 55, and the other end is fixed to the fixed cylinder The closed end of 41 is fixedly connected, and the second return spring 57 is used to drive the ratchet 55 to rotate, thereby driving the take-up column 56 to rotate to realize automatic cable storage; compared with the prior art, this embodiment sets a cable storage mechanism 5 for storing and retrieving the excess length of the cable in the folding mechanism, so that the folding mechanism can adjust the length of the cable while folding or unfolding, so that the cable is always at the required length, which can avoid the excess length of the cable from being piled up in the folding mechanism, and prevent the excess length of the cable from being stuck on the shaft and affecting the rotation or the cable from being broken by the shaft when folding or unfolding, thereby avoiding affecting the folding or unfolding movement of the equipment.

[0076] Preferably, the locking assembly includes a rotating disk 51, a swing rod 52, a connecting rod 53 and a chuck 54. The rotating disk 51 is sleeved on the rotating shaft 3 and is fixedly connected to the rotating shaft 3, and can rotate with the rotation of the rotating shaft 3; one end of the swing rod 52 is hinged to the edge of the rotating disk 51, and the other end is hinged to one end of the connecting rod 53; the middle part of the connecting rod 53 is hinged to the closed end of the fixed cylinder 41 through a pin, and the other end is hinged to one end of the chuck 54; the other end of the chuck 54 is installed on the closed end of the fixed cylinder 41 and is hinged to the fixed cylinder 41 through a pin. The pin shaft is hingedly connected to the fixed cylinder 41; the chuck 54 is provided with a ratchet, and the ratchet cooperates with the ratchet wheel 55. By turning the handle 2, the rotating shaft 3 is driven to rotate, thereby driving the turntable 51 to rotate. The rotation of the turntable 51 drives the rocker rod 52 to rotate, and then drives the connecting rod 53 to rotate with the pin shaft set in the middle of the connecting rod 53 as a fulcrum, thereby further driving the chuck 54 to rotate with the pin shaft connected to the fixed cylinder 41 as a fulcrum, so that the ratchet set on the chuck 54 engages or disengages with the ratchet wheel 55, thereby realizing that the chuck 54 locks or unlocks the ratchet wheel 55.

[0077] Preferably, the take-up post 56 is used to wind and store the cable; the cable entering the housing 1 is folded in half, the folded end of the cable is fixed on the take-up post 56 , and then the excess cable is wound and stored on the take-up post 56 .

[0078] Preferably, the first return spring 43 and the second return spring 57 are both coil springs.

[0079] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A folding mechanism cable retracting method, characterized in that: The following steps are involved: Step S1: unlocking the folding mechanism; Step S2: adjusting the folding angle of the folding mechanism and retracting and releasing the cables at the same time; Step S3: Lock the folding mechanism.

2. A folding mechanism cable folding method according to claim 1, characterized in that: The step S1 further comprises: rotating the rotating shaft (3) so that the angle adjustment mechanism (4) and the cable retracting mechanism (5) are unlocked simultaneously, thereby unlocking the folding mechanism.

3. A folding mechanism cable folding method according to claim 2, characterized in that: The step S1 also includes: rotating the rotating shaft (3) so that the pushing column (31) on the rotating shaft (3) slides in the spiral groove (445) of the locking plate (44), thereby driving the locking plate (44) to slide in a direction away from the angle adjustment plate (42), so that the second gear teeth (442) on the locking plate (44) are separated from the first gear teeth (421) on the angle adjustment plate (42).

4. A folding mechanism cable folding method according to claim 3, characterized in that: The step S1 further comprises: the rotating shaft (23) rotates and drives the rotating disk (51) to rotate, and drives the swing rod (52) to move, thereby driving the connecting rod (53) to rotate with a pin shaft arranged in the middle of the connecting rod (53) as a fulcrum through the swing rod (52), and then driving the chuck (54) to rotate with a pin shaft connected to the fixed cylinder (41) as a fulcrum, so that the ratchet teeth arranged on the chuck (54) are separated from the ratchet wheel (55).

5. A folding mechanism cable folding method according to claim 1, characterized in that: The step S2 also includes: adjusting the folding angle of the folding mechanism, and adjusting the length of the cable through the cable retracting mechanism (5) so that the excess length of the cable always maintains the required length.

6. A folding mechanism cable folding method according to claim 1, characterized in that: The step S3 further comprises: releasing the torque of the handle (2), and the handle (2) drives the rotating shaft (3) to rotate in the opposite direction under the action of the return elastic force of the first return spring (43) in the angle adjustment mechanism (4), so that the angle adjustment mechanism (4) and the cable retracting mechanism (5) are locked at the same time, thereby locking the folding mechanism.

7. A folding mechanism cable folding method according to claim 6, characterized in that: The step S3 also includes: the rotating shaft (3) rotates in the reverse direction, so that the pushing column (31) on the rotating shaft (3) slides in the spiral groove (445) of the locking plate (44), thereby driving the locking plate (44) to slide in a direction close to the angle adjustment plate (42), so that the second gear teeth (442) on the locking plate (44) are meshed with the first gear teeth (421) on the angle adjustment plate (42).

8. A folding mechanism cable folding method according to claim 7, characterized in that: The step S3 further comprises: the rotating shaft (23) rotates in the opposite direction and drives the rotating disk (51) to rotate in the opposite direction, and drives the swing rod (52) to move, thereby driving the connecting rod (53) to rotate in the opposite direction by using the pin shaft provided in the middle of the connecting rod (53) as a fulcrum through the swing rod (52), and then driving the chuck (54) to rotate in the opposite direction by using the pin shaft connected to the fixed cylinder (41) as a fulcrum, so that the ratchet teeth provided on the chuck (54) are meshed with the ratchet wheel (55).

9. A folding mechanism cable folding method according to claim 8, characterized in that: The step S3 further comprises: while the angle adjustment mechanism (4) is locked, the compression spring (45) compresses the second gear teeth (442) and the first gear teeth (421) under the action of elastic force.

10. A folding mechanism cable folding method according to claim 2, characterized in that: The cable retracting and releasing mechanism (5) comprises a locking assembly, a ratchet (55), a cable retracting post (56) and a second return spring (57).

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