Winding mechanism, power device and clothes airing machine

Abstract

The utility model relates to a winding mechanism, a power device and a clothes airing machine. The utility model relates to a wire winding mechanism, which comprises a wire winding wheel, a wire winding mechanism and a wire winding mechanism, the sheath and the winding wheel are coaxially arranged, and the sheath is arranged outside the winding wheel in a covering mode so that the steel wire rope can be limited in the wire groove; the steel wire rope is tightly attached to the inner wall of the wire groove in the tightened state, and the steel wire rope abuts against the inner wall of the sheath in a loose expansion mode in the loose state so as to drive the sheath to rotate synchronously. According to the winding mechanism, the movable sheath is additionally arranged outside the winding wheel and can rotate along with the steel wire rope, so that the steel wire rope is prevented from jumping, friction damage between the steel wire rope and the sheath can be reduced, and the lifting stability of the steel wire rope is improved.

Description

Technical Field

[0001] This utility model relates to the field of clothes drying machine technology, and in particular to a winding mechanism, a power unit, and a clothes drying machine. Background Technology

[0002] Clothes drying racks typically consist of a winding mechanism, a steel wire rope, and a drying rod. The winding mechanism uses a reel to wind up and unwind the steel wire rope, which in turn moves the drying rod up and down. Under normal operating conditions, the steel wire rope is tensioned under load and rotates around the reel. The reel's clockwise and counterclockwise rotation drives the loaded steel wire rope up and down. If the steel wire rope suddenly loses its load or experiences a reverse force exceeding its weight, the tensioned rope can loosen due to its elasticity within the groove, potentially causing it to jump out and jam the winding mechanism. To prevent this, existing technologies use a wire-pressing mechanism on the outside of the reel to confine the steel wire rope within the groove. However, these mechanisms are usually fixed and prone to friction with the moving steel wire rope, leading to friction damage and even breakage, thus affecting the normal operation of the clothes drying rack. Utility Model Content

[0003] Based on this, the purpose of this utility model is to provide a winding mechanism that, by adding a movable sheath to the outside of the winding wheel, can rotate with the wire rope, preventing the wire rope from jumping while reducing frictional damage between the wire rope and the sheath, and improving the stability of the wire rope lifting.

[0004] Another objective of this invention is to provide a power device that, by setting a winding mechanism with a sheath that rotates synchronously with the wire rope, effectively prevents the wire rope from jumping, thereby improving the stability and service life of the power device.

[0005] Another objective of this utility model is to provide a clothes drying rack that uses a power device to control the stable raising and lowering of the steel wire rope to ensure stable operation of the clothes drying rack. This effectively avoids problems such as the steel wire rope coming out of the wire groove and getting stuck due to sudden slack during the raising or lowering of the steel wire rope.

[0006] A winding mechanism, comprising:

[0007] The winding reel has grooves on its outer wall for winding steel wire rope;

[0008] A sheath is coaxially arranged with the winding reel and covers the outside of the winding reel to confine the wire rope within the groove.

[0009] When the wire rope is taut, it is pressed against the inner wall of the groove. When the wire rope is slack, it expands and abuts against the inner wall of the sheath, causing the sheath to rotate synchronously.

[0010] Furthermore, the sheath sidewall is provided with an inner outlet for the wire rope to exit, and a roller is provided on the side of the sheath near the inner outlet, and the wire rope abuts against the roller when it is taut.

[0011] Furthermore, the sheath is slidably connected to the winding reel so that the winding reel drives the sheath to rotate in the same direction.

[0012] Furthermore, the winding reel includes a winding portion having the wire groove and a gear portion coaxially fixed to the winding portion, the gear portion having a sliding groove on its end face near the winding portion; the end of the sheath is slidably disposed within the sliding groove.

[0013] Furthermore, the end of the sheath is provided with a sliding part including a plurality of balls, the balls being movably embedded in the bottom of the sliding part and abutting against the groove.

[0014] Furthermore, a bearing is provided at the end of the sheath away from the sliding part, and the sheath is rotatably connected to the winding reel through the bearing.

[0015] Furthermore, the winding mechanism also includes:

[0016] The outer casing has a sheath rotatably disposed inside it; the outer casing has an outgoing cable outlet, and when the wire rope is taut, the outgoing cable outlet and the inner cable outlet at least partially overlap.

[0017] Furthermore, a sensor is fixed on the side of the outer cable outlet located in the circumferential direction of the outer casing, for sensing that the wire rope is clamped between the sheath and the outer casing.

[0018] A power unit, comprising:

[0019] The motor, the transmission assembly, and the winding mechanism described in this utility model;

[0020] One end of the transmission assembly is connected to the motor, and the other end is connected to the winding reel, driving the winding reel to rotate and wind up and unwind the wire rope.

[0021] A clothes drying rack includes: the power device described in this utility model.

[0022] The beneficial effects of this utility model are as follows:

[0023] (1) By adding a movable sheath to the outside of the winding reel, the sheath can rotate with the wire rope, thereby preventing the wire rope from loosening in all directions and preventing the wire rope from coming out of the groove. At the same time, it can reduce the friction between the wire rope and the sheath and improve the stability of the wire rope lifting.

[0024] (2) By installing rollers near the outlet of the sheath, wear of the wire rope can be effectively prevented and the service life of the wire rope can be improved.

[0025] (3) By setting up a sensor, the slack state of the wire rope can be detected, thereby stopping the motor to brake the winding wheel;

[0026] (4) By precisely adjusting the distance of each gap in the winding device, the wire rope can be further prevented from getting stuck, thus improving the stability of the lifting and lowering of the drying rack.

[0027] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the winding mechanism provided in an embodiment of this application;

[0029] Figure 2 for Figure 1 A cross-sectional view of the winding mechanism shown;

[0030] Figure 3 This is a schematic diagram of the structure of the winding reel provided in an embodiment of this application;

[0031] Figure 4 Exploded view of the winding mechanism provided in the embodiments of this application;

[0032] Figure 5 for Figure 4 A cross-sectional view of the winding mechanism shown;

[0033] Figure 6 This is a schematic diagram of the assembly of the sheath and the outer shell;

[0034] Figure 7 An exploded view of the power unit provided in the embodiments of this application.

[0035] In the diagram: 10-Winding mechanism; 11-Winding reel; 111-Winding section; 112-Gear section; 1121-Slide groove; 12-Sheath; 121-Inner outlet; 1211-Inlet side; 1212-Outlet side; 122-Sliding section; 1221-Ball bearing; 123-Bearing; 124-Roller; 13-Outer casing; 131-Base; 132-Cover; 1321-Outlet; 1321a-First side; 1321b-Second side; 14-Sensor; 20-Wire rope; 30-Transmission assembly; 31-Worm gear; 32-Turbine; 40-Motor. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] Please see Figure 1-3 This application provides a winding mechanism, including a winding reel 11 and a sheath 12 covering the outside of the winding reel 11. The winding reel 11 includes a winding portion 111 with a groove on its outer wall for winding a steel wire rope 20. The inner wall of the sheath 12 is disposed close to the groove so that the steel wire rope 20 is embedded in the groove. The sheath 12 is coaxially disposed with the winding reel 11. When the steel wire rope 20 is in a taut state, it is pressed against the inner wall of the groove. When the steel wire rope 20 is in a slack state, it expands and abuts against the inner wall of the sheath 12, causing the sheath 12 to rotate synchronously. This reduces the friction between the steel wire rope 20 and the sheath 12, thereby reducing the wear of the steel wire rope 20 and improving the stability of the lifting and lowering of the steel wire rope 20.

[0040] Furthermore, the sheath 12 has an inner outlet 121 on its side wall for the wire rope 20 to exit. When the winding wheel 11 drives the wire rope 20 to wind up and down, the wire rope 20 is taut. At this time, the wire rope 20 abuts against the side wall of the inner outlet 121 and provides resistance to prevent the sheath 12 from rotating further with the winding wheel 11.

[0041] Specifically, the inner outlet 121 includes two opposing sides. When the wire rope 20 is unwound from the reel 11, the sheath 12 rotates to the outlet position, at which point the wire rope 20 abuts against one side of the inner outlet 121, defined as the outlet side 1212. When the wire rope 20 is wound back onto the reel 11, the sheath 12 rotates to the inlet position, at which point the wire rope 20 abuts against the other side of the inner outlet 121 opposite to the outlet side 1212, defined as the inlet side 1211. In this configuration, when the end of the wire rope 20 loses its load or is subjected to a thrust greater than its load, the wire rope 20 slackens and loosens within the groove, and the sheath 12 effectively prevents the wire rope 20 from slipping out of the groove. Meanwhile, compared to traditional fixed wire pressing structures, the gap between the wire pressing structure and the winding reel 11 or wire rope 20 is very small. When there is an assembly deviation, the winding reel 11 or wire rope 20 will squeeze and rub against the wire pressing structure, causing abnormal noise. In this embodiment, the sheath 12 can rotate relative to the central axis of the winding reel 11, which can adaptively adjust the assembly deviation, reduce the squeezing friction between the sheath 12 and the winding reel 11 or wire rope 20, and reduce noise.

[0042] Furthermore, in some embodiments, the winding reel 11 is also provided with a gear portion 112 coaxially fixed to the winding portion 111. The gear portion 112 meshes with the external transmission component 30, and drives the winding reel 11 to rotate through the external transmission component 30, thereby realizing the winding and unwinding of the wire rope 20. The end face of the gear portion 112 is provided with a sliding groove 1121, and the bottom of the sheath 12 is provided with a sliding portion 122. The sliding portion 122 is slidably disposed in the sliding groove 1121, so that the sheath 12 can rotate relative to the winding reel 11. Under the absence of external force, the sliding portion 122 and the sliding groove 1121 generate a certain frictional force, and the sheath 12 can rotate with the winding reel 11. When it rotates to a certain position, the wire rope 20 is tensioned and abuts against the exit side or the inlet side 1211 of the sheath 12, applying resistance to the sheath 12. At this time, the sheath 12 stops rotating to ensure the normal lifting and lowering of the wire rope 20.

[0043] Preferably, the outer diameter of the gear portion 112 protrudes beyond the outer diameter of the winding portion 111, and the slide groove 1121 is an annular groove wrapped around the outside of the winding portion 111. The sheath 12 can be vertically inserted into the slide groove 1121 for easy assembly.

[0044] Furthermore, in some embodiments, the sliding part 122 includes a plurality of balls 1221 movably embedded in its bottom. The balls 1221 abut against the bottom of the groove 1121 to improve the smoothness of relative sliding between the sheath 12 and the winding wheel 11. It also helps the sheath 12 to adaptively adjust the distance between itself and the winding wheel 11, avoiding the sheath 12 from getting stuck due to excessive friction on one side, which would cause the wire rope 20 to get stuck and affect the normal lifting and lowering of the wire rope 20.

[0045] Furthermore, the sheath 12 is also provided with a bearing 123, which is rotatably connected to the shaft of the winding reel 11, thereby ensuring stable rotation between the sheath 12 and the winding reel 11. Preferably, the bearing 123 is located at the end of the sheath 12 away from the sliding part 122, so that smooth rotation between the sheath 12 and the winding reel 11 can be ensured from both ends, thereby ensuring stable rotation of the sheath 12.

[0046] Furthermore, in some embodiments, the sheath 12 also includes a plurality of rollers 124, which are arranged on the side near the inner outlet 121. In the normal wire rope 20 in the inlet and outlet states, the wire rope 20 directly abuts against the rollers 124. The rollers 124 can rotate as the wire rope 20 is wound up and down, which can reduce the wear of the wire rope 20 and help improve the service life and operational stability of the wire rope 20.

[0047] Furthermore, the sheath 12 also includes multiple spaced-apart pressure rollers, which press the wire rope 20 to confine it within the groove. Specifically, the sheath 12 has slits in its sidewalls, and the pressure rollers are rotatably mounted within these slits. When the wire rope 20 expands and abuts against the pressure rollers, the rollers rotate due to friction, reducing friction between the sheath 12 and the winding reel 11, making their relative sliding smoother, and effectively reducing noise generated by friction between the sheath 12 and the winding reel 11 or the wire rope 20.

[0048] Please see Figure 4-6 Furthermore, in some embodiments, the winding mechanism 10 further includes a housing 13 disposed outside the winding reel 11 and the sheath 12 to prevent external objects from interfering with the operation of the winding mechanism 10. Specifically, the housing 13 includes a base 131 and a cover 132, which are fixedly connected to form a receiving cavity in which the winding mechanism 10 is disposed. The winding reel 11 is rotatably mounted on the base 131. The cover 132 covers the outside of the winding reel 11 and the sheath 12 from the other side of the winding reel 11 and is fixedly connected to the base 131, and abuts against the top of the sheath 12, clamping one end of the sheath 12 between the cover 132 and the gear portion 112 of the winding reel 11. This prevents the wire groove from being exposed due to axial displacement of the sheath 12 during rotation, which would cause the wire rope 20 to lose the compression of the sheath 12 and come out of the wire groove. It is understood that this arrangement is only one of the ways in which the winding reel 11 and the sheath 12 are arranged inside the housing 13. In some other embodiments, the winding reel 11 can also be rotatably arranged inside the cover 132, and then the base 131 can be placed on the cover 132 to abut against the sheath 12, thereby limiting the axial displacement of the sheath 12. This will not be described in detail here.

[0049] Furthermore, in some embodiments, the gap between the base 131 and the cover 132 can be adjusted by setting a graphite gasket to ensure that the height dimension of the receiving cavity can guarantee that the sheath 12 and the winding reel 11 can rotate within the receiving cavity.

[0050] Furthermore, in some embodiments, the cover 132 has an outgoing cable opening 1321, which at least partially overlaps with the inner cable opening 121, so that the wire rope 20 can be smoothly unloaded and reloaded. Preferably, the outgoing cable opening 1321 at least covers the side of the inner cable opening 121 that abuts against the wire rope 20. That is, when the winding mechanism 10 is in the unloading state and the sheath 12 rotates to the cable exit position, the outgoing cable opening 1321 at least covers the cable exit side 1212 that the wire rope 20 abuts against; when the winding mechanism 10 is in the reloading state and the sheath 12 rotates to the cable inlet position, the outgoing cable opening 1321 at least covers the cable inlet side 1211 that the wire rope 20 abuts against. With this arrangement, the outgoing cable opening 1321 will not come into contact with the wire rope 20, avoiding unnecessary frictional damage to the wire rope 20.

[0051] Furthermore, in some embodiments, the radial distance between the cover 132 and the sheath 12 is smaller than the wire diameter of the steel wire rope 20. This prevents the steel wire rope 20 from winding into the gap between the sheath 12 and the outer shell 13, causing the wire to get stuck. It is understood that when the steel wire rope 20 is in a slack state, the winding wheel 11 continues to rotate. At this time, the sheath 12 loses the thrust of the steel wire rope 20 and will continue to rotate with the winding wheel 11. This causes the steel wire rope 20 to wind disorderly on the outer wall of the sheath 12, easily causing the wire to get stuck and making it difficult to manage the wire. The outer shell 13 needs to be removed before the steel wire rope 20 can be restored. Preferably, the radial distance L between the outer shell 13 and the sheath 12 and the wire diameter R of the steel wire rope 20 satisfy 1 / 4R ≤ L ≤ 2 / 3R. Within this range, the steel wire rope 20 cannot get stuck between the cover 132 and the sheath 12 by overcoming its own deformation, while also ensuring that the cover 132 and the sheath 12 maintain an appropriate assembly gap to ensure their relative rotation.

[0052] Furthermore, in some embodiments, the winding mechanism 10 is also provided with a sensor 14, which is fixed to the outgoing cable port 1321 on the side of the cover 132 in the circumferential direction, for sensing that the wire rope 20 abuts against the side. The sides of the outgoing cable outlet 1321 located in the moving direction of the wire rope 20 are defined as the first side 1321a and the second side 1321b. When the wire rope 20 is in a slack state, the winding wheel 11 continues to rotate in the winding direction. At this time, the sheath 12 loses the thrust of the wire rope 20 and will continue to rotate in the same direction as the winding wheel 11. When the sheath 12 rotates to the position where the cover 132 completely covers the inner cable outlet 121, that is, the inner cable outlet 121 and the outgoing cable outlet 1321 do not overlap at all, the infeed side 1211 and the first side 1321a overlap radially. The wire rope 20 is squeezed and pressed against the first side 1321a by the infeed side 1211. At this time, the sensor 14 located on the first side 1321a senses the wire rope 20, so that the motor 40 responds and stops rotating, thereby braking the winding wheel 11. When the wire rope 20 is in a slack state, the reel 11 continues to rotate in the direction of wire exit. The exit side 1212 and the second side 1321b coincide radially. The wire rope 20 is squeezed and pressed against the second side 1321b by the exit side 1212. At this time, the sensor 14 located at the second side 1321b senses the wire rope 20, so that the motor 40 responds and stops rotating, thereby braking the reel 11.

[0053] Specifically, in some embodiments, the sensor is a photoelectric sensor, including a transmitter and a receiver. Specifically, the transmitter and receiver are located at opposite ends of their respective sides. When the wire rope 20 is slack, it is compressed between the transmitter and receiver. The receiver receives a change in the photoelectric signal, senses the wire rope 20, and the motor 40 responds by stopping its rotation, thereby braking the reel 11. In other embodiments, the sensor is a distance sensor, located at either end of its respective side. When the wire rope 20 is slack, it is compressed to the side. The distance sensor determines that the wire rope 20 is in front of it by detecting changes in the distance to objects in front, and the motor 40 responds by stopping its rotation, thereby braking the reel 11. In other embodiments, the sensor can also be a mechanically triggered sensor, which will not be detailed here.

[0054] Please see Figure 4 and Figure 7This application also provides a power device, including a motor 40, a transmission assembly 30, and at least one winding mechanism 10. The output end of the motor 40 is connected to the transmission assembly 30, and the transmission assembly 30 drives the winding mechanism 10 to operate and to wind up and unwind the wire rope 20 through the winding reel 11. Specifically, the transmission assembly 30 includes a worm 31 and at least one turbine 32. One end of the worm 31 is fixed to the output end of the motor 40, and the other end meshes with the turbine 32. The turbine 32 is simultaneously connected to the gear portion 112 of the winding reel 11 to drive the winding reel 11 to rotate. As a preferred embodiment, the power device has two sets of winding mechanisms 10, and two turbines 32 are provided to drive the two sets of winding mechanisms 10 respectively. The two turbines 32 are respectively located on both sides of the worm 31 and simultaneously mesh with the worm 31. The worm 31 simultaneously controls the rotation of the two sets of winding mechanisms 10 to control the synchronous winding and unwinding of the wire rope 20 from both sides of the power device.

[0055] This application embodiment also provides a clothes drying rack, including a power unit with a winding mechanism 10 and a drying rod. The two ends of the drying rod are respectively connected to the power unit by steel wire ropes 20. The winding mechanism 10 controls the steel wire ropes 20 to pull the drying rod to rise and fall stably.

[0056] Compared with the prior art, the beneficial effects of the embodiments of this application are as follows:

[0057] (1) By adding a movable sheath to the outside of the winding reel, the sheath can rotate with the wire rope, thereby preventing the wire rope from loosening in all directions and preventing the wire rope from coming out of the groove. At the same time, it can reduce the friction between the wire rope and the sheath and improve the stability of the wire rope lifting.

[0058] (2) By installing rollers near the outlet of the sheath, wear of the wire rope can be effectively prevented and the service life of the wire rope can be improved.

[0059] (3) By setting up a sensor, the slack state of the wire rope can be detected, thereby stopping the motor to brake the winding wheel;

[0060] (4) By precisely adjusting the distance of each gap in the winding device, the wire rope can be further prevented from getting stuck, thus improving the stability of the lifting and lowering of the drying rack.

[0061] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. A winding mechanism, characterized in that, include: The winding reel has grooves on its outer wall for winding steel wire rope; A sheath is coaxially arranged with the winding reel and covers the outside of the winding reel to confine the wire rope within the groove. When the wire rope is taut, it is pressed against the inner wall of the groove. When the wire rope is slack, it expands and abuts against the inner wall of the sheath, causing the sheath to rotate synchronously.

2. The winding mechanism according to claim 1, characterized in that: The sheath sidewall is provided with an inner outlet for the wire rope to exit, and a roller is provided on the side of the sheath near the inner outlet. When the wire rope is taut, it abuts against the roller.

3. A winding mechanism according to claim 1, characterized in that: The sheath is slidably connected to the winding reel so that the winding reel drives the sheath to rotate in the same direction.

4. A winding mechanism according to claim 3, characterized in that: The winding reel includes a winding portion with the wire groove and a gear portion coaxially fixed to the winding portion. The end face of the gear portion near the winding portion has a sliding groove. The end of the sheath is slidably disposed in the sliding groove.

5. A winding mechanism according to claim 4, characterized in that: The end of the sheath is provided with a sliding part including a plurality of balls, the balls being movably embedded in the bottom of the sliding part and abutting against the groove.

6. A winding mechanism according to claim 5, characterized in that: The end of the sheath away from the sliding part is provided with a bearing, and the sheath is rotatably connected to the winding reel through the bearing.

7. A winding mechanism according to claim 2, characterized in that, Also includes: The outer casing has a sheath rotatably disposed inside it; the outer casing has an outgoing cable outlet, and when the wire rope is taut, the outgoing cable outlet and the inner cable outlet at least partially overlap.

8. A winding mechanism according to claim 7, characterized in that, Also includes: A sensor, fixed to the side of the outer cable outlet located on the circumferential side of the outer casing, is used to sense whether the wire rope is clamped between the sheath and the outer casing.

9. A power unit, characterized in that, include: The motor, the transmission assembly, and the winding mechanism according to any one of claims 1-8; One end of the transmission assembly is connected to the motor, and the other end is connected to the winding reel, driving the winding reel to rotate and wind up and unwind the wire rope.

10. A clothes drying rack, characterized in that, include: The power unit as described in claim 9.

Images