Notched winding disc

Abstract

The present application belongs to the technical field of winding disks, and discloses a winding disk with a gap, including a winding disk body, a C-shaped tooth plate movably installed on the top of the winding disk body, a driving motor movably fitted on the outer wall of the C-shaped tooth plate, a rotating tooth plate is provided in the gap on the C-shaped tooth plate, and the rotating tooth plate is connected to the C-shaped tooth plate through a connecting shaft, an opening is provided at the center position of the winding disk body, and a cable is provided in the opening, and a film placement component and an adjustment component are installed on the C-shaped tooth plate. The present application can control the rotating tooth plate to rotate through the connecting shaft by disconnecting the connecting screw and the contact between the C-shaped tooth plate and the rotating tooth plate, and the cable can be taken out from the winding disk body by opening the gap on the C-shaped tooth plate.

Description

Technical Field

[0001] The present application relates to the technical field of winding disks, and more particularly to a winding disk with a notch. Background Art

[0002] During the production and packaging process of cables, it is often necessary to wrap a layer of protective film on the surface of the completed cables through a winding drum to provide protection for the cables and prevent the cable skin from being damaged during transportation.

[0003] In actual use, some existing winding drums need to pass the cable through the center position of the winding drum, and then rotate the winding drum to wrap the protective film installed on the surface of the winding drum around the surface of the cable. Since the overall structure of the winding drum is relatively fixed, it is not convenient to directly take the half-wound cable out of the winding drum. The cable can only be pulled to move until one end of the cable is detached from the winding drum, which is quite inconvenient.

[0004] In order to solve the above problems, the present application provides a winding disk with a notch. Summary of the invention

[0005] The winding disc with a notch provided in the present application adopts the following technical solution:

[0006] A winding disk with a notch comprises a winding disk body, a C-shaped tooth plate is movably installed on the top of the winding disk body, a driving motor is movably fitted on the outer wall of the C-shaped tooth plate, a rotating tooth plate is provided in the notch of the C-shaped tooth plate, and the rotating tooth plate is connected to the C-shaped tooth plate through a connecting shaft, an opening is provided at the center position of the winding disk body, and a cable is provided in the opening, and a film placement assembly and an adjustment assembly are installed on the C-shaped tooth plate.

[0007] Through the above technical solution, the toothed ring drives the C-shaped toothed plate and the rotating toothed plate to rotate, and drives the film placement assembly and the adjustment assembly on the C-shaped toothed plate to rotate, so as to wrap the protective film around the cable.

[0008] Furthermore, the film placement assembly includes a rotating rod, a supporting ring is fixedly installed on the outer wall of the rotating rod, a fixing ring is installed on the top of the rotating rod, an adjusting ring is movably mounted on the outer wall of the rotating rod, and the adjusting ring is located between the supporting ring and the fixing ring, and four adjusting screws are rotatably installed on the top of the adjusting ring.

[0009] Through the above technical solution, the protective film can be clamped and limited by adjusting the screw rod so that the bottom end of the adjusting ring fits against the top end of the protective film.

[0010] Furthermore, the upper and lower ends of the fixing ring are provided with four threaded through holes, and the diameter of the four threaded through holes on the fixing ring is the same as the diameter of the adjusting screw, and the adjusting screws all penetrate the fixing ring and extend to the top of the fixing ring.

[0011] Through the above technical solution, it is convenient to fix the position of the adjusting ring by rotating the adjusting screw.

[0012] Furthermore, a rotating groove is provided at the top of the C-shaped tooth plate, the diameter of the rotating groove is the same as the diameter of the rotating rod, and a rotating connecting ring is connected to the inner wall of the bottom end of the rotating groove on the C-shaped tooth plate, and the top of the rotating connecting ring is fixedly connected to the bottom end of the rotating rod.

[0013] Through the above technical solution, the rotating rod can be rotated during use, so that the protective film located on the outer wall of the rotating rod can be wrapped around the outer wall of the cable during the rotation of the rotating rod.

[0014] Furthermore, the adjustment assembly includes an adjusting slide groove located on the C-shaped toothed plate, a slide plate is slidably installed in the adjusting slide groove, a threaded through hole is provided on the top of the slide plate, and a limiting screw is installed in the threaded through hole, and the width dimension of the slide plate is the same as the width dimension of the adjusting slide groove, a groove is provided on the slide plate, and a second rotating rod is rotatably installed in the groove, a connecting plate is fixedly installed on the outer wall of the second rotating rod, a rotating shaft is fixedly connected to the connecting plate, and a U-shaped frame is rotatably connected to the outer wall of the rotating shaft, two threaded rods are provided in the U-shaped groove on the U-shaped frame, and the diameter dimension of the threaded rod is the same as the width dimension of the U-shaped groove on the U-shaped frame, and a roller is rotatably installed on the outer wall of the threaded rod, and the roller is located on the left side of the U-shaped frame, a matching nut is provided on the outer wall of the threaded rod, and the nut is located on the right side of the U-shaped frame, movable slide grooves are provided on the front and rear sides of the slide plate, and inclined-stayed components are slidably installed in the two movable slide grooves.

[0015] Through the above technical solution, the positions of the threaded rod and the roller can be easily fixed, that is, the gap between the two rollers can be adjusted through the nut.

[0016] Furthermore, the inclined-stayed assembly includes a slider, an L-shaped connecting plate is provided at the top of the slider, a threaded through hole is provided on the L-shaped connecting plate, and a locking screw is provided in the threaded through hole, a cross bar is fixedly installed on the side wall of the slider, a sleeve plate is movably mounted on the outer wall of the cross bar, and a movable plate is provided on the sleeve plate, a through hole is provided at the center of the movable plate, and a second cross bar is provided in the through hole.

[0017] Through the above technical solution, by controlling the locking screw to pass through the side plate of the L-shaped connecting plate and fit the top of the slide plate, the position of the slider can be fixed, that is, the angle of the U-shaped frame can be fixed.

[0018] Furthermore, a second locking screw is provided on the sleeve plate, and the second locking screw passes through the side wall of the sleeve plate and extends into the inner cavity of the sleeve plate.

[0019] Through the above technical solution, it is convenient to fix the position of the movable plate through the second locking screw.

[0020] Furthermore, a groove is provided on the sleeve plate, and the length, width and height of the groove are the same as those of the movable plate.

[0021] Through the above technical solution, it is convenient to extend the movable plate into the groove on the sleeve plate, and adjust the angle and position of the movable plate for use.

[0022] Furthermore, a plurality of limiting rotating wheels are provided at the bottom end of the C-shaped tooth plate, and the limiting rotating wheels are composed of a vertical rod and an I-shaped wheel, and the I-shaped wheel is movably mounted on the outer wall of the vertical rod, and the upper and lower inner walls of the I-shaped wheel are movably fitted on the upper and lower ends of the winding disk body.

[0023] Through the above technical solution, it is convenient to control the C-shaped tooth plate to make circular motion on the winding disk body through the limiting rotating wheel.

[0024] Furthermore, the C-shaped tooth plate is provided with a protrusion, and the rotating tooth plate is provided with a groove matching the length, width and height of the protrusion, and the groove on the rotating tooth plate and the protrusion on the C-shaped tooth plate are both provided with threaded through holes with the same diameter, and a connecting screw is movably installed in the threaded through hole, through which the rotating tooth plate and the C-shaped tooth plate can be connected into a whole.

[0025] Through the above technical solution, it is convenient to connect the rotating tooth plate and the C-shaped tooth plate into a whole through the connecting screw.

[0026] In summary, this application includes the following beneficial technical effects:

[0027] (1) By disconnecting the connection screw from the contact between the C-shaped tooth plate and the rotating tooth plate, the rotating tooth plate can be controlled to rotate through the connecting shaft, and the notch on the C-shaped tooth plate can be opened, so that the cable can be taken out from the winding drum body.

[0028] (2) After the U-shaped frame is adjusted to the desired position, the movable plate can be moved and extended into the sleeve plate by adjusting the second locking screw to enter the sleeve plate to fit the movable plate, so as to fix the position of the movable plate. The locking screw can be controlled to pass through the side plate of the L-shaped connecting plate and fit the top of the slide plate to fix the position of the slider, which is convenient for fixing the angle of the U-shaped frame and adjusting the angle of the two rollers according to the thickness of the protective film for use.

[0029] (3) The protective film is placed on the outer wall of the rotating rod and located between the supporting ring and the adjusting ring, and the bottom end of the adjusting ring is made to fit the top end of the protective film by adjusting the screw, so as to facilitate the clamping and limiting of the protective film and facilitate the later replacement of the protective film on the rotating rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall structure of this application;

[0031] Figure 2 This is a schematic diagram of the back structure of the winding disk body of the present application;

[0032] Figure 3 This is a schematic diagram of the partial structure of the winding disk body of the present application;

[0033] Figure 4 This is a schematic diagram of the membrane assembly structure of this application;

[0034] Figure 5 This is a schematic diagram of the adjustment component structure of this application;

[0035] Figure 6 This is a schematic diagram of the structure of the cable-stayed assembly of this application.

[0036] Description of the numbers in the figure:

[0037] 1. Winding disk body; 2. C-shaped tooth plate; 3. Driving motor; 4. Rotating tooth plate; 5. Connecting shaft; 6. Connecting screw; 7. Limiting wheel; 8. Cable; 9. Film placement assembly; 10. Adjustment assembly; 11. Rotating rod; 12. Support ring; 13. Fixed ring; 14. Adjusting ring; 15. Adjusting screw; 16. Adjusting slide; 17. Slide plate; 18. Limiting screw; 19. Second rotating rod; 20. Connecting plate; 21. Rotating shaft; 22. U-shaped frame; 23. Threaded rod; 24. Nut; 25. Roller; 26. Movable slide; 27. Oblique-stayed assembly; 28. Sliding block; 29. ​​L-shaped connecting plate; 30. Locking screw; 31. Crossbar; 32. Sleeve plate; 33. Movable plate; 34. Second locking screw; 35. Second crossbar. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0039] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0040] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] Example:

[0042] The present application embodiment discloses a winding disk with a notch, please refer to Figure 1-Figure 6 , including a winding disk body 1, a C-shaped tooth plate 2 is movably installed on the top of the winding disk body 1, a driving motor 3 is movably fitted on the outer wall of the C-shaped tooth plate 2, a rotating tooth plate 4 is provided in the notch on the C-shaped tooth plate 2, and the rotating tooth plate 4 is connected to the C-shaped tooth plate 2 through a connecting shaft 5, an opening is provided at the center of the winding disk body 1, and a cable 8 is provided in the opening, a film placement component 9 and an adjustment component 10 are installed on the C-shaped tooth plate 2, the driving motor 3 is composed of a rotating motor and a gear ring, the gear ring is installed at the bottom end of the rotating motor, and a plurality of teeth that can mesh with each other are provided on the outer walls of the gear ring, the C-shaped tooth plate 2, and the rotating tooth plate 4, so that during the rotation of the driving motor 3, the C-shaped tooth plate 2 and the rotating tooth plate 4 are driven to rotate through the gear ring, and the film placement component 9 and the adjustment component 10 located on the C-shaped tooth plate 2 are driven to rotate, so as to wind the cable 8 with a protective film.

[0043] See also Figure 4 The film placement assembly 9 includes a rotating rod 11, a supporting ring 12 is fixedly installed on the outer wall of the rotating rod 11, a fixing ring 13 is installed on the top of the rotating rod 11, and a plurality of blocks are provided at the bottom end of the fixing ring 13. The top of the rotating rod 11 is provided with a plurality of slots matching the blocks, so as to facilitate the removal of the fixing ring 13 from the top of the rotating rod 11 in the later stage. An adjusting ring 14 is movably sleeved on the outer wall of the rotating rod 11, and the adjusting ring 14 is located between the supporting ring 12 and the fixing ring 13. Four adjusting screws 15 are rotatably installed on the top of the adjusting ring 14, and the protective film is placed on the outer wall of the rotating rod 11 and located between the supporting ring 12 and the adjusting ring 14, and the bottom end of the adjusting ring 14 is made to fit the top of the protective film through the adjusting screw 15, so as to facilitate the clamping and limiting of the protective film.

[0044] See also Figure 1-Figure 4 There are four threaded through holes at the upper and lower ends of the fixing ring 13, and the diameter of the four threaded through holes on the fixing ring 13 is the same as the diameter of the adjusting screw 15. The adjusting screw 15 penetrates the fixing ring 13 and extends to the top of the fixing ring 13, so that the position of the adjusting ring 14 can be fixed by rotating the adjusting screw 15.

[0045] See also Figure 1 A rotating groove is provided at the top of the C-shaped tooth plate 2, and the diameter of the rotating groove is the same as the diameter of the rotating rod 11. A rotating connecting ring is connected to the inner wall of the bottom end of the rotating groove on the C-shaped tooth plate 2, and the top of the rotating connecting ring is fixedly connected to the bottom end of the rotating rod 11, so that the rotating rod 11 can be rotated during use, so that the protective film on the outer wall of the rotating rod 11 can be wrapped around the outer wall of the cable 8 during the rotation of the rotating rod 11.

[0046] See also Figure 5 The adjustment assembly 10 includes an adjustment slot 16 located on the C-shaped tooth plate 2, a slide plate 17 is slidably installed in the adjustment slot 16, a threaded through hole is provided at the top of the slide plate 17, and a limit screw 18 is installed in the threaded through hole. By controlling the slide plate 17 to slide and adjust the position in the adjustment slot 16, and the limit screw 18 penetrates the slide plate 17 and fits the inner wall of the bottom end of the adjustment slot 16, the slide plate 17 can be fixedly installed in the adjustment slot 16, and the width of the slide plate 17 is the same as the width of the adjustment slot 16. A groove is provided on the slide plate 17, and a second rotating rod 19 is rotatably installed in the groove. A connecting plate 20 is fixedly installed on the outer wall of the second rotating rod 19, and a rotating shaft 21 is fixedly connected to the connecting plate 20, and a U-shaped frame 22 is rotatably connected to the outer wall of the rotating shaft 21. The U-shaped slot on the U-shaped frame 22 Two threaded rods 23 are provided, and the diameter of the threaded rods 23 is the same as the width of the U-shaped groove on the U-shaped frame 22, and a roller 25 is rotatably installed on the outer wall of the threaded rod 23, and the roller 25 is located on the left side of the U-shaped frame 22, and a matching nut 24 is provided on the outer wall of the threaded rod 23, and the nut 24 is located on the right side of the U-shaped frame 22, and movable slide grooves 26 are provided on the front and rear sides of the slide plate 17, and inclined pull components 27 are slidably installed in the two movable slide grooves 26. By rotating the second rotating rod 19 and the rotating shaft 21, the angle of the U-shaped frame 22 can be adjusted conveniently, and by controlling the nut 24 to rotate on the outer wall of the threaded rod 23 and fit the side wall of the U-shaped frame 22, the position of the threaded rod 23 and the roller 25 can be fixed, that is, the gap between the two rollers 25 can be adjusted by the nut 24.

[0047] See also Figure 6The inclined-stayed assembly 27 includes a slider 28, an L-shaped connecting plate 29 is provided at the top of the slider 28, a threaded through hole is provided on the L-shaped connecting plate 29, and a locking screw 30 is provided in the threaded through hole, a cross bar 31 is fixedly installed on the side wall of the slider 28, a sleeve 32 is movably sleeved on the outer wall of the cross bar 31, and a movable plate 33 is provided on the sleeve 32, a through hole is provided at the center position of the movable plate 33, and a second cross bar 35 is provided in the through hole, and the second cross bar 35 is fixedly installed on the U-shaped frame 22. After the U-shaped frame 22 is adjusted to the desired position, the movable plate 33 can be moved and extended into the sleeve 32 by regulating the movable plate 33, and the second locking screw 34 can be controlled to enter the sleeve 32 to fit the movable plate 33, so that the position of the movable plate 33 can be fixed, and the locking screw 30 can be controlled to pass through the side plate of the L-shaped connecting plate 29 and fit the top of the slide plate 17, so that the position of the slider 28 can be fixed, that is, the angle of the U-shaped frame 22 is fixed.

[0048] See also Figure 6 A second locking screw 34 is provided on the sleeve plate 32 , and the second locking screw 34 passes through the side wall of the sleeve plate 32 and extends into the inner cavity of the sleeve plate 32 , so as to fix the position of the movable plate 33 through the second locking screw 34 .

[0049] See also Figure 6 A groove is provided on the sleeve plate 32, and the length, width and height of the groove are the same as those of the movable plate 33, so that the movable plate 33 can be easily inserted into the groove on the sleeve plate 32 and the angle and position of the movable plate 33 can be adjusted for use.

[0050] See also Figure 1 and Figure 6 A plurality of limit wheels 7 are provided at the bottom end of the C-shaped tooth plate 2. The limit wheel 7 is composed of a vertical rod and an I-shaped wheel, and the I-shaped wheel is movably mounted on the outer wall of the vertical rod, and the upper and lower inner walls of the I-shaped wheel are movably fitted on the upper and lower ends of the winding disk body 1, so that the C-shaped tooth plate 2 can be controlled to make a circular motion on the winding disk body 1 through the limit wheel 7.

[0051] See also Figure 1 and Figure 6 A protrusion is provided on the C-shaped tooth plate 2, and a groove matching the length, width and height of the protrusion is provided on the rotating tooth plate 4, and the groove on the rotating tooth plate 4 and the protrusion on the C-shaped tooth plate 2 are provided with threaded through holes with the same diameter, and a connecting screw 6 is movably installed in the threaded through hole, and the rotating tooth plate 4 and the C-shaped tooth plate 2 can be connected into a whole through the connecting screw 6, so that the rotating tooth plate 4 and the C-shaped tooth plate 2 can be connected into a whole through the connecting screw 6.

[0052] The implementation principle of this embodiment is as follows: when in use, the driving motor 3 is started by an external power supply, the protective film is placed on the outer wall of the rotating rod 11 and is located between the supporting ring 12 and the adjusting ring 14, and the bottom end of the adjusting ring 14 is made to fit the top of the protective film through the adjusting screw 15, and one end of the protective film is passed through between the two rollers 25 and wrapped around the outer wall of the cable 8. In the process of the cable 8 moving upward, the C-shaped tooth plate 2 is driven to rotate by the driving motor 3, so that the protective film can be evenly wound around the outer wall of the cable 8. When the cable 8 needs to be taken out, the rotating tooth plate 4 can be controlled to rotate through the connecting screw 6 by disconnecting the contact between the C-shaped tooth plate 2 and the rotating tooth plate 4, so as to open the notch on the C-shaped tooth plate 2 and take the cable 8 out of the winding disk body 1.

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A winding disc with a notch, comprising a winding disc body (1), characterized in that: A C-shaped tooth plate (2) is movably mounted on the top of the winding disk body (1), a driving motor (3) is movably fitted on the outer wall of the C-shaped tooth plate (2), a rotating tooth plate (4) is arranged in the notch of the C-shaped tooth plate (2), and the rotating tooth plate (4) is connected to the C-shaped tooth plate (2) via a connecting shaft (5), an opening is arranged at the center of the winding disk body (1), and a cable (8) is arranged in the opening, a film placement component (9) and an adjustment component (10) are installed on the C-shaped tooth plate (2); the adjustment component (10) comprises an adjustment slot (16) located on the C-shaped tooth plate (2), a slide plate (17) is slidably mounted in the adjustment slot (16), a threaded through hole is arranged at the top of the slide plate (17), a limiting screw (18) is installed in the threaded through hole, and the width dimension of the slide plate (17) is the same as the width dimension of the adjustment slot (16), and a groove is arranged on the slide plate (17), and A second rotating rod (19) is rotatably mounted in the groove, a connecting plate (20) is fixedly mounted on the outer wall of the second rotating rod (19), a rotating shaft (21) is fixedly connected to the connecting plate (20), and a U-shaped frame (22) is rotatably connected to the outer wall of the rotating shaft (21), two threaded rods (23) are arranged in the U-shaped groove on the U-shaped frame (22), and the diameter of the threaded rods (23) is the same as the width of the U-shaped groove on the U-shaped frame (22), a roller (25) is rotatably mounted on the outer wall of the threaded rod (23), and the roller (25) is located on the left side of the U-shaped frame (22), a matching nut (24) is arranged on the outer wall of the threaded rod (23), and the nut (24) is located on the right side of the U-shaped frame (22), and movable slide grooves (26) are arranged on the front and rear sides of the slide plate (17), and inclined-stayed components (27) are slidably mounted in the two movable slide grooves (26); The film placement assembly (9) comprises a rotating rod (11), a supporting ring (12) is mounted on the outer wall of the rotating rod (11), a fixing ring (13) is fixedly mounted on the top of the rotating rod (11), an adjusting ring (14) is movably sleeved on the outer wall of the rotating rod (11), and the adjusting ring (14) is located between the supporting ring (12) and the fixing ring (13), and four adjusting screws (15) are rotatably mounted on the top of the adjusting ring (14); The inclined-stayed assembly (27) comprises a slider (28), an L-shaped connecting plate (29) is provided at the top end of the slider (28), a threaded through hole is provided on the L-shaped connecting plate (29), a locking screw (30) is provided in the threaded through hole, a cross bar (31) is fixedly mounted on the side wall of the slider (28), a sleeve plate (32) is movably sleeved on the outer wall of the cross bar (31), a movable plate (33) is provided on the sleeve plate (32), a through hole is provided at the center of the movable plate (33), and a second cross bar (35) is provided in the through hole; The C-shaped toothed plate (2) is provided with a protrusion, and the rotating toothed plate (4) is provided with a groove matching the length, width and height of the protrusion, and the groove on the rotating toothed plate (4) and the protrusion on the C-shaped toothed plate (2) are both provided with threaded through holes of the same diameter, and a connecting screw (6) is movably installed in the threaded through hole, and the rotating toothed plate (4) and the C-shaped toothed plate (2) can be connected to form a whole by means of the connecting screw (6).

2. The winding disk with notch according to claim 1, characterized in that: The fixing ring (13) is provided with four threaded through holes at the upper and lower ends, and the diameters of the four threaded through holes on the fixing ring (13) are the same as the diameters of the adjusting screws (15). The adjusting screws (15) all penetrate the fixing ring (13) and extend to the top of the fixing ring (13).

3. The winding disk with notch according to claim 1, characterized in that: The top end of the C-shaped toothed plate (2) is provided with a rotation groove, the diameter of the rotation groove being the same as the diameter of the rotation rod (11), and a rotation connection ring is connected to the inner wall of the bottom end of the rotation groove on the C-shaped toothed plate (2), and the top end of the rotation connection ring is fixedly connected to the bottom end of the rotation rod (11).

4. The winding disk with notch according to claim 1, characterized in that: A second locking screw (34) is provided on the sleeve plate (32), and the second locking screw (34) penetrates the side wall of the sleeve plate (32) and extends into the inner cavity of the sleeve plate (32).

5. The winding disk with notch according to claim 1, characterized in that: The sleeve plate (32) is provided with a groove, and the length, width and height dimensions of the groove are the same as the length, width and height dimensions of the movable plate (33).

6. The winding disk with notch according to claim 1, characterized in that: A plurality of limit rotating wheels (7) are provided at the bottom end of the C-shaped toothed plate (2), the limit rotating wheels (7) being composed of a vertical rod and an I-shaped wheel, the I-shaped wheel being movably sleeved on the outer wall of the vertical rod, and the inner walls on the upper and lower sides of the I-shaped wheel being movably fitted on the upper and lower ends of the winding disk body (1).

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