Winding roll structure

Abstract

The invention discloses a winding roll structure. The device comprises a shell, a fixed shaft is fixed in the shell, a rotating disc sleeves the fixed shaft, the rotating disc and the fixed shaft are rotatably connected, an automatic rewinding structure is arranged between the rotating disc and the fixed shaft, an electric wire I is wound on the rotating disc, one end of the electric wire I is fixed on the rotating disc, and a wire outlet vertical opening matched with the electric wire I is formed in the side wall of the shell. A fixed rod is further fixed in the shell, the fixed rod is parallel to the center line of the rotary disc, the fixed rod is sleeved with a movable block, the movable block is arranged on the side face of the rotary disc and is in sliding connection with the fixed rod, a transmission mechanism is arranged between the movable block and the rotary disc, and a wire hole matched with the first wire is formed in the movable block. The other end of the first wire sequentially penetrates through the wire hole and the wire outlet vertical opening to be arranged outside the shell. The beneficial effect of the invention is that the wire clamping caused by disordered winding of the electric wire can be avoided.

Description

Technical Field

[0001] This invention relates to the technical field of cable reels, and in particular to a cable reel structure. Background Technology

[0002] Cable reels, also known as cable reels or cable winding machines, have replaced conductor rails as the mainstream solution for mobile transmission technologies (power, data, and fluid media) due to their advantages such as small installation space, convenient maintenance, reliable use, and low cost.

[0003] Chinese Patent Publication No. CN219620617U, published on September 1, 2023, discloses a power cord reel, including a housing, a fixed post fixedly installed inside the housing, a rotating drum sleeved on the outer peripheral wall of the fixed post, a spring-loaded spring between the rotating drum and the fixed post, a wound wire on the outer peripheral wall of the rotating drum, an interconnected outer groove and an inner groove on the side of the rotating drum, and a check groove on the side of the rotating drum that communicates with the inner groove. A stop ball is placed in both the check groove and a strip groove on the inner peripheral wall of the housing. The drawback of this patent is that when the reel is winding the wire, the wire may get stuck due to disorderly winding on the rotating drum, making it difficult to pull the wire out of the reel during the next unwinding.

[0004] In summary, there is a need for a cable reel structure that can prevent wires from getting stuck due to disordered tangling. Summary of the Invention

[0005] The present invention aims to overcome the shortcomings of the prior art where the wire gets stuck on the drum due to disorderly winding of the wire during the winding process, making it difficult to pull the wire out of the reel during the next unwinding. The invention provides a reel structure that can avoid the problem of wire getting stuck due to disorderly winding of the wire.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A reel structure includes a housing, a fixed shaft fixed inside the housing, a turntable sleeved on the fixed shaft, the turntable and the fixed shaft being rotatably connected and having an automatic rewinding mechanism between them, an electric wire wound on the turntable, one end of the electric wire being fixed to the turntable, a wire outlet corresponding to the electric wire being provided on the side wall of the housing, a fixed rod fixed inside the housing, the fixed rod being parallel to the center line of the turntable, a movable block sleeved on the fixed rod, the movable block being placed on the side of the turntable and slidably connected to the fixed rod, a transmission mechanism being provided between the movable block and the turntable, and an electric wire hole corresponding to the electric wire being provided on the movable block, the other end of the electric wire being passed through the electric wire hole and the wire outlet in sequence and placed outside the housing.

[0007] While the turntable rotates to take in or release the wire, the transmission mechanism transmits the turntable's motion to a movable block, causing the block to slide along a fixed rod. Since the wire passes through the wire hole in the movable block, the sliding of the block along the fixed rod guides the wire being taken in or released, ensuring it is regularly wound around or released from the turntable, effectively preventing wire jamming caused by disorderly tangling. During take-in, the automatic rewinding mechanism automatically rewinds the released wire, making it convenient to use.

[0008] Preferably, the movable block is provided with a fixing rod through hole that matches the fixing rod. The fixing rod is placed in the fixing rod through hole and slidably connected to it. The transmission mechanism includes a rotating rod placed inside the housing. The rotating rod and the housing are rotatably connected. The rotating rod and the fixing rod are arranged in parallel. The outer wall of the rotating rod is provided with an external thread area. The movable block is provided with a rotating rod through hole that matches the rotating rod. A threaded guide block that matches the external thread area is fixed on the inner wall of the rotating rod through hole. The rotating rod is placed in the rotating rod through hole and threadedly connected to it. A transmission sleeve one is fixed on the outer side of the rotating rod. A transmission sleeve two is fixed at the port of the turntable. The transmission sleeve one and the transmission sleeve two are connected by a transmission belt. When the turntable rotates, the second transmission sleeve transmits motion to the first transmission sleeve via the transmission belt, thereby driving the rotating rod to rotate synchronously. At this time, under the threaded engagement of the external thread area and the threaded guide block, the movable block will slide along the fixed rod. Since the first wire passes through the wire hole of the movable block, the sliding of the movable block along the fixed rod can guide the wire that is being wound or released, so that the first wire can be regularly wound around the turntable or regularly released from the turntable, which effectively avoids the situation of wire jamming due to disorderly winding of the wire.

[0009] Preferably, a ring wall is fixed on the turntable, the wire is wound around the outside of the ring wall, the movable block is placed on the side of the ring wall, and the fixed shaft is placed on the inside of the ring wall. The automatic rewinding mechanism includes a coil spring placed between the fixed shaft and the ring wall, with the outer end of the coil spring fixedly connected to the ring wall and the inner end of the coil spring fixedly connected to the fixed shaft. During wire feeding, the turntable and the ring wall rotate, causing the coil spring to deform; during wire rewinding, the return force of the coil spring causes the turntable and the ring wall to automatically rotate, thus achieving automatic wire rewinding. Operation is simple and convenient.

[0010] Preferably, a partition is fixed to the inner side of the ring wall, the coil spring is installed between the partition and the turntable, the end of the fixed shaft passes through the partition and a fixed plate is fixed thereon, the fixed shaft and the partition are rotatably connected, a ratchet area is provided on the outer wall of the fixed plate, a pawl matching the ratchet area is installed on the partition, the end of the pawl is placed on the outer wall of the fixed plate, the root of the pawl is rotatably connected to the partition and a torsion spring is installed between the two. During wire feeding, the turntable and the ring wall rotate, causing the pawl to rotate around the fixed plate. The wire is automatically locked by the cooperation of the pawl and the ratchet area, which is simple to operate and convenient to use.

[0011] Preferably, the outer wall of the fixed disc is further provided with a recessed area, the ratchet area is located on one side of the fixed disc, and the recessed area is located on the other side of the fixed disc. When retracting the cable, the pawl is rotated to the recessed area on the fixed disc. At this time, the pawl is no longer locked in one direction by the ratchet area and can also rotate in the opposite direction around the fixed disc. If the user releases the cable at this time, the entire turntable can automatically rotate back and retract the cable smoothly under the reset action of the coil spring. The operation is simple and convenient.

[0012] Preferably, a rotating frame is fixed to the partition, and a conductive strip is fixed to the rotating frame. A wire is fixed to one end of the conductive strip. A fixing post is fixed to the inner wall of the housing, and a second conductive strip is fixed to the fixing post. One end of the second conductive strip is connected to the second wire, and the other end of the second conductive strip is in contact with the other end of the first conductive strip. The second wire is a power cord, and the first wire is a device cord. In use, the second wire is plugged into a power socket, and the current is transmitted sequentially through the first conductive strip, the second conductive strip, and the first conductive strip to the first wire.

[0013] Preferably, a positioning post is fixed to the partition, and the rotating frame is provided with a positioning groove that matches the positioning post. The rotating frame is installed on the partition through the cooperation of the positioning groove and the positioning post. The end face of the positioning post is provided with a threaded hole one, and the bottom face of the positioning groove is provided with a threaded hole two that matches the threaded hole one. The positioning post is threadedly fixed to the positioning groove through the cooperation of the threaded hole one and the threaded hole two. The cooperation of the positioning groove and the positioning post can play a positioning role in the installation of the rotating frame on the partition, making installation more convenient. Through the cooperation of the threaded hole one and the threaded hole two, the rotating frame is fixed to the partition with fixing screws. The connection method is simple and easy to operate, convenient for installation and disassembly, reduces the difficulty of later maintenance and repair, and the connection is stable with good fixing effect.

[0014] Preferably, the rotating frame has an internal cavity, and the side wall of the cavity has a through hole for a fixed post that matches the fixed post. The end of the fixed post passes through the through hole and is placed inside the cavity. The fixed post and the fixed shaft are on the same straight line, and the fixed post and the rotating frame are rotatably connected. The cavity contains two conductive rings: a first conductive ring and a second conductive ring. The first conductive ring is fitted onto the outside of the fixed post and fixedly connected to the other end of the first conductive strip. The second conductive ring is fitted onto the outside of the fixed post and fixedly connected to the other end of the second conductive strip. The first and second conductive rings are in contact. Current is sequentially transmitted through the second wire, the second conductive strip, the second conductive ring, the first conductive ring, and the first conductive strip to the first wire. While the turntable rotates to take in or release the first wire, the first and second conductive rings also rotate relative to each other and remain in contact, ensuring that the first and second wires are always conductive, resulting in good conductivity.

[0015] Preferably, the outer wall of the fixing column is provided with an annular groove, and a retaining ring is provided at the annular groove. The inner ring of the retaining ring is sleeved on the annular groove and rotatably connected thereto, while the outer ring of the retaining ring is installed at the edge of the through hole of the fixing column and rotatably connected thereto. The retaining ring design avoids direct contact between the fixing column and the rotating frame, reducing wear between them, protecting the parts, and improving service life.

[0016] Preferably, a conductive connecting ring is also sleeved on the outer side of the fixing post. The conductive connecting ring is positioned between conductive ring one and conductive ring two. The conductive connecting ring has several upper protrusions and several lower concave portions, which are alternately arranged. The lower concave portions contact conductive ring one, and the upper protrusions contact conductive ring two. Through the shape design of the conductive connecting ring, direct contact between conductive ring one and conductive ring two can be avoided. During rotation, conductive ring one only contacts the apex of the lower concave portion, and conductive ring two only contacts the apex of the upper concave portion, greatly reducing the contact area. This reduces surface wear on conductive ring one and conductive ring two, protects the parts, and improves their service life.

[0017] The beneficial effects of this invention are: it can avoid wire jamming caused by disorderly tangling of wires; it can automatically rewind and take back the wire; it is simple to operate and convenient to use; it is easy to disassemble and assemble, reducing the difficulty of later maintenance and repair; it provides stable connection and good fixing effect; it has good conductivity; it has the function of protecting parts and improving service life. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention; Figure 2 This is the front view of the present invention; Figure 3 yes Figure 2 Sectional view at point AA; Figure 4 yes Figure 2 Sectional view at point BB; Figure 5 This is a schematic diagram showing the connection between conductive ring 1 and conductive connecting ring 1; Figure 6 yes Figure 2 Sectional view at CC; Figure 7 yes Figure 2 Sectional view at point DD.

[0019] In the diagram: 1. Housing, 2. Fixed shaft, 3. Turntable, 4. Wire 1, 5. Vertical outlet, 6. Fixed rod, 7. Movable block, 8. Wire hole, 9. Fixed rod through hole, 10. Rotating rod, 11. External thread area, 12. Rotating rod through hole, 13. Threaded guide block, 14. Transmission sleeve 1, 15. Transmission sleeve 2, 16. Transmission belt, 17. Ring wall, 18. Coil spring, 19. Partition plate, 20. Fixed disc, 21. Racket area, 22. Pawl, 23. Torsion spring, 24. Recessed area, 25. Rotating frame, 26. Conductive strip 1, 27. Fixed post, 28. Conductive strip 2, 29. Wire 2, 30. Positioning post, 31. Positioning groove, 32. Threaded hole 1, 33. Threaded hole 2, 34. 35. Rotating bracket cavity, 36. Fixed column through hole, 37. Conductive ring plate one, 38. Conductive ring plate two, 39. Ring groove, 40. Snap ring, 41. Conductive connecting ring plate, 42. Upper convex part, 43. Lower concave part. Detailed Implementation

[0020] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0021] like Figure 1 , Figure 2 and Figure 4In the embodiments described, a reel structure includes a housing 1, a fixed shaft 2 fixed inside the housing 1, a turntable 3 sleeved on the fixed shaft 2, the turntable 3 and the fixed shaft 2 being rotatably connected and an automatic rewinding structure being provided between them, an electric wire 4 being wound on the turntable 3, one end of the electric wire 4 being fixed on the turntable 3, a wire outlet 5 matching the electric wire 4 being provided on the side wall of the housing 1, a fixed rod 6 being fixed inside the housing 1, the fixed rod 6 being parallel to the center line of the turntable 3, a movable block 7 being sleeved on the fixed rod 6, the movable block 7 being placed on the side of the turntable 3 and slidably connected to the fixed rod 6, a transmission mechanism being provided between the movable block 7 and the turntable 3, the movable block 7 being provided with an electric wire hole 8 matching the electric wire 4, the other end of the electric wire 4 passing through the electric wire hole 8 and the wire outlet 5 in sequence and being placed outside the housing 1.

[0022] like Figure 2 , Figure 3 and Figure 6 As shown, the movable block 7 is provided with a fixed rod through hole 9 that matches the fixed rod 6. The fixed rod 6 is placed in the fixed rod through hole 9 and slidably connected to it. The transmission mechanism includes a rotating rod 10 placed inside the housing 1. The rotating rod 10 and the housing 1 are rotatably connected. The rotating rod 10 and the fixed rod 6 are arranged in parallel. The outer wall of the rotating rod 10 is provided with an external thread area 11. The movable block 7 is provided with a rotating rod through hole 12 that matches the rotating rod 10. A threaded guide block 13 that matches the external thread area 11 is fixed on the inner wall of the rotating rod through hole 12. The rotating rod 10 is placed in the rotating rod through hole 12 and threadedly connected to it. A transmission sleeve 14 is fixed on the outer side of the rotating rod 10. A transmission sleeve 25 is fixed at the port of the turntable 3. The transmission sleeve 14 and the transmission sleeve 25 are connected by a transmission belt 16.

[0023] like Figure 2 and Figure 4 As shown, a ring wall 17 is fixed on the turntable 3, a wire 4 is wound around the outside of the ring wall 17, a movable block 7 is placed on the side of the ring wall 17, a fixed shaft 2 is placed on the inside of the ring wall 17, and the automatic rewinding mechanism includes a coil spring 18 placed between the fixed shaft 2 and the ring wall 17. The outer end of the coil spring 18 is fixedly connected to the ring wall 17, and the inner end of the coil spring 18 is fixedly connected to the fixed shaft 2.

[0024] like Figure 7 As shown, a partition 19 is fixed to the inner side of the annular wall 17, a coil spring 18 is installed between the partition 19 and the turntable 3, the end of the fixed shaft 2 passes through the partition 19 and a fixed disk 20 is fixed thereon, the fixed shaft 2 and the partition 19 are rotatably connected, a ratchet area 21 is provided on the outer side wall of the fixed disk 20, a pawl 22 matching the ratchet area 21 is installed on the partition 19, the end of the pawl 22 is placed on the outer side wall of the fixed disk 20, the root of the pawl 22 is rotatably connected to the partition 19 and a torsion spring 23 is installed between the two.

[0025] like Figure 7 As shown, a recessed area 24 is also provided on the outer side wall of the fixed plate 20, the ratchet area 21 is located on one side of the fixed plate 20, and the recessed area 24 is located on the other side of the fixed plate 20.

[0026] like Figure 4 and Figure 5 As shown, a rotating frame 25 is fixed on the partition 19, and a conductive strip 26 is fixed on the rotating frame 25. A wire 4 is fixed to one end of the conductive strip 26. A fixing post 27 is fixed on the inner wall of the housing 1, and a conductive strip 28 is fixed on the fixing post 27. One end of the conductive strip 28 is connected to a wire 29, and the other end of the conductive strip 28 is in contact with the other end of the conductive strip 26.

[0027] like Figure 4 As shown, a positioning post 30 is fixed on the partition 19, and a positioning groove 31 matching the positioning post 30 is provided on the rotating frame 25. The rotating frame 25 is installed on the partition 19 through the cooperation of the positioning groove 31 and the positioning post 30. A threaded hole 32 is provided on the end face of the positioning post 30, and a threaded hole 33 matching the threaded hole 32 is provided on the bottom surface of the positioning groove 31. The positioning post 30 is threadedly fixedly connected to the positioning groove 31 through the cooperation of the threaded hole 32 and the threaded hole 33.

[0028] like Figure 4 As shown, the rotating frame 25 has a rotating frame cavity 34 inside. The side wall of the rotating frame cavity 34 has a fixing post through hole 35 that matches the fixing post 27. The end of the fixing post 27 passes through the fixing post through hole 35 and is placed inside the rotating frame cavity 34. The fixing post 27 and the fixing shaft 2 are located on the same straight line. The fixing post 27 and the rotating frame 25 are rotatably connected. The rotating frame cavity 34 has a first conductive ring plate 36 and a second conductive ring plate 37 inside. The first conductive ring plate 36 is sleeved on the outside of the fixing post 27 and is fixedly connected to the other end of the first conductive strip 26. The second conductive ring plate 37 is sleeved on the outside of the fixing post 27 and is fixedly connected to the other end of the second conductive strip 28. The first conductive ring plate 36 and the second conductive ring plate 37 are in contact.

[0029] like Figure 4 As shown, an annular groove 38 is provided on the outer wall of the fixed column 27, and a retaining ring 39 is provided at the annular groove 38. The inner ring of the retaining ring 39 is sleeved on the annular groove 38 and rotatably connected to it, and the outer ring of the retaining ring 39 is installed at the edge of the port of the through hole 35 of the fixed column and rotatably connected to it.

[0030] like Figure 4 and Figure 5As shown, a conductive connecting ring 40 is also sleeved on the outside of the fixed post 27. The conductive connecting ring 40 is placed between conductive ring 36 and conductive ring 37. The conductive connecting ring 40 is provided with a number of upper protrusions 41 and a number of lower concave portions 42. The upper protrusions 41 and lower concave portions 42 are alternately arranged. The lower concave portions 42 are in contact with conductive ring 36, and the upper protrusions 41 are in contact with conductive ring 37.

[0031] While the turntable 3 rotates to take in or release the wire 4, the transmission sleeve 15 transmits motion to the transmission sleeve 14 via the transmission belt 16, thereby driving the rotating rod 10 to rotate synchronously. At this time, under the threaded engagement of the external thread area 11 and the threaded guide block 13, the movable block 7 will slide along the fixed rod 6. Since the wire 4 passes through the wire hole 8 of the movable block 7, the sliding of the movable block 7 along the fixed rod 6 can guide the wire 4 that is being taken in or released, so that the wire 4 can be regularly wound around the turntable 3 or regularly released from the turntable 3, avoiding the situation of wire jamming due to disorderly winding of the wire 4.

[0032] When the line is unloaded, the turntable 3 and the ring wall 17 rotate and cause the coil spring 18 to deform; when the line is retracted, the return force of the coil spring 18 can drive the turntable 3 and the ring wall 17 to rotate automatically, thereby realizing automatic line retraction.

[0033] When releasing the wire, the turntable 3 and the ring wall 17 rotate, causing the pawl 22 to rotate around the fixed plate 20. The released wire 4 is automatically locked by the cooperation of the pawl 22 and the ratchet area 21. When retracting the wire, the pawl 22 is rotated to the recessed area 24 on the fixed plate 20. At this time, the pawl 22 is no longer locked in one direction by the ratchet area 21, and can also rotate in the opposite direction around the fixed plate 20. If the user releases the wire 4 at this time, the entire turntable 3 can automatically rotate and retract the wire under the reset action of the coil spring 18.

[0034] When rotating, conductive ring 36 contacts only the apex of the lower recess 42, and conductive ring 37 contacts only the apex of the upper recess 41. The current is transmitted sequentially through wire 29 (power line), conductive strip 28, conductive ring 37, conductive ring 36, conductive connecting ring 40, and conductive strip 26 to wire 4 (equipment line).

Claims

1. A coil structure, characterized in that, The device includes a housing (1), inside which a fixed shaft (2) is fixed. A turntable (3) is sleeved on the fixed shaft (2). The turntable (3) and the fixed shaft (2) are rotatably connected and an automatic rewinding structure is provided between them. A wire (4) is wound on the turntable (3). One end of the wire (4) is fixed on the turntable (3). A wire outlet (5) matching the wire (4) is provided on the side wall of the housing (1). A fixed rod is also fixed inside the housing (1). 6) The center lines of the fixed rod (6) and the turntable (3) are arranged parallel to each other. A movable block (7) is sleeved on the fixed rod (6). The movable block (7) is placed on the side of the turntable (3) and is slidably connected to the fixed rod (6). A transmission mechanism is provided between the movable block (7) and the turntable (3). The movable block (7) is provided with a wire hole (8) that matches the first wire (4). The other end of the first wire (4) passes through the wire hole (8) and the wire outlet (5) in sequence and is placed outside the housing (1).

2. The winding reel structure according to claim 1, characterized in that, The movable block (7) is provided with a fixing rod through hole (9) that matches the fixing rod (6). The fixing rod (6) is placed in the fixing rod through hole (9) and slidably connected to it. The transmission mechanism includes a rotating rod (10) placed inside the housing (1). The rotating rod (10) and the housing (1) are rotatably connected. The rotating rod (10) and the fixing rod (6) are arranged in parallel. The outer side wall of the rotating rod (10) is provided with an external thread area (11). The movable block (7) is provided with a through hole (9) that matches the rotating rod (6). A rotating rod through hole (12) is matched with the rotating rod through hole (12). A threaded guide block (13) matching the external thread area (11) is fixed on the inner wall of the rotating rod through hole (12). The rotating rod (10) is placed in the rotating rod through hole (12) and threadedly connected to it. A transmission sleeve one (14) is fixed on the outer side of the rotating rod (10). A transmission sleeve two (15) is fixed at the port of the turntable (3). The transmission sleeve one (14) and the transmission sleeve two (15) are connected by a transmission belt (16).

3. A winding reel structure according to claim 1 or 2, characterized in that, A ring wall (17) is fixed on the turntable (3). The wire (4) is wound around the outside of the ring wall (17). The movable block (7) is placed on the side of the ring wall (17). The fixed shaft (2) is placed on the inside of the ring wall (17). The automatic rewinding mechanism includes a coil spring (18) placed between the fixed shaft (2) and the ring wall (17). The outer end of the coil spring (18) is fixedly connected to the ring wall (17), and the inner end of the coil spring (18) is fixedly connected to the fixed shaft (2).

4. The winding reel structure according to claim 3, characterized in that, A partition (19) is fixed to the inner side of the ring wall (17). A coil spring (18) is installed between the partition (19) and the turntable (3). The end of the fixed shaft (2) passes through the partition (19) and a fixed disk (20) is fixed thereon. The fixed shaft (2) and the partition (19) are rotatably connected. A ratchet area (21) is provided on the outer wall of the fixed disk (20). A pawl (22) matching the ratchet area (21) is installed on the partition (19). The end of the pawl (22) is placed on the outer wall of the fixed disk (20). The root of the pawl (22) and the partition (19) are rotatably connected and a torsion spring (23) is installed between them.

5. The winding reel structure according to claim 4, characterized in that, The outer wall of the fixed disk (20) is also provided with a recessed area (24), the ratchet area (21) is located on one side of the fixed disk (20), and the recessed area (24) is located on the other side of the fixed disk (20).

6. The winding reel structure according to claim 4, characterized in that, A rotating frame (25) is fixed on the partition (19), and a conductive strip (26) is fixed on the rotating frame (25). A wire (4) is fixed on one end of the conductive strip (26). A fixing post (27) is fixed on the inner wall of the housing (1). A conductive strip (28) is fixed on the fixing post (27). A wire (29) is connected to one end of the conductive strip (28). The other end of the conductive strip (28) is in contact with the other end of the conductive strip (26).

7. A winding reel structure according to claim 6, characterized in that, A positioning post (30) is fixed on the partition (19). The rotating frame (25) is provided with a positioning groove (31) that matches the positioning post (30). The rotating frame (25) is installed on the partition (19) through the cooperation of the positioning groove (31) and the positioning post (30). The end face of the positioning post (30) is provided with a threaded hole one (32). The bottom surface of the positioning groove (31) is provided with a threaded hole two (33) that matches the threaded hole one (32). The positioning post (30) is threadedly fixed to the positioning groove (31) through the cooperation of the threaded hole one (32) and the threaded hole two (33).

8. A winding reel structure according to claim 6, characterized in that, The rotating frame (25) has a rotating frame cavity (34) inside. The side wall of the rotating frame cavity (34) has a fixing post through hole (35) that matches the fixing post (27). The end of the fixing post (27) passes through the fixing post through hole (35) and is placed inside the rotating frame cavity (34). The fixing post (27) and the fixing shaft (2) are on the same straight line. The fixing post (27) and the rotating frame (25) are rotatably connected. The rotating frame cavity (34) has a first conductive ring (36) and a second conductive ring (37) inside. The first conductive ring (36) is sleeved on the outside of the fixing post (27) and fixedly connected to the other end of the first conductive strip (26). The second conductive ring (37) is sleeved on the outside of the fixing post (27) and fixedly connected to the other end of the second conductive strip (28). The first conductive ring (36) and the second conductive ring (37) are in contact.

9. A winding reel structure according to claim 8, characterized in that, The outer wall of the fixed column (27) is provided with an annular groove (38), and a retaining ring (39) is provided at the annular groove (38). The inner ring of the retaining ring (39) is sleeved at the annular groove (38) and rotatably connected thereto. The outer ring of the retaining ring (39) is installed at the edge of the port of the through hole (35) of the fixed column and rotatably connected thereto.

10. A winding reel structure according to claim 8, characterized in that, A conductive connecting ring (40) is also sleeved on the outside of the fixed post (27). The conductive connecting ring (40) is placed between conductive ring one (36) and conductive ring two (37). The conductive connecting ring (40) is provided with a plurality of upper protrusions (41) and a plurality of lower concave parts (42). The upper protrusions (41) and lower concave parts (42) are alternately arranged. The lower concave parts (42) are in contact with conductive ring one (36), and the upper protrusions (41) are in contact with conductive ring two (37).

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