Clothes drying rack lifting motor shift transmission assembly

Abstract

This invention relates to the field of clothes drying rack transmission assembly technology, specifically a clothes drying rack lifting motor shift transmission assembly, including a housing. A transmission component is located at the bottom of the housing, an adjustment component is located on the inner wall of the housing, and a drive component is located at the bottom of the housing. The transmission component includes two fixed plates, which are fixedly connected to the bottom inner wall of the housing. Rotary holes are formed on the surface of the fixed plates, and a rotating shaft is rotatably connected inside the holes. Two snap-fit ​​rings are symmetrically fixedly fitted onto the surface of the rotating shaft. Through the snap-fit ​​engagement between the snap-fit ​​strip in the transmission assembly and the control gear, combined with the elastic buffering effect of the rubber block, the rotating shaft can be instantly limited during gear shifting, effectively preventing uncontrolled gear rotation caused by the steel cable pulling. This solves the transmission instability problem caused by shifting gaps in the prior art. Simultaneously, the rubber block can absorb impact loads, reduce noise during transmission, and improve operational smoothness.

Description

Technical Field

[0001] This invention relates to the field of clothes drying rack transmission assembly technology, specifically to the clothes drying rack lifting motor shift transmission assembly. Background Technology

[0002] An electric clothes drying rack is a household appliance used for drying clothes. It consists of a main drying rack, clothes rod, suspension bridge, and hardware accessories. Driven by a motor, it can achieve remote or intelligent control of raising and lowering the clothes rod. The buffer transmission is a core transmission subsystem used to suppress the impact of raising and lowering, absorb inertia, reduce noise, and improve the smoothness of operation. It is commonly found in electric clothes drying racks and achieves buffering through mechanical structure, electronic control strategy, or a combination of both to adapt to different scenarios and cost requirements.

[0003] Existing electric clothes drying racks use transmission gears to achieve lifting and lowering transmission, converting the rotational force of the motor into the winding force of the cable, thereby realizing the lifting and lowering of the clothes rack. When the transmission gear rotates under the control of the motor, it is affected by external forces in both directions of the motor and the cable. When the transmission gear shifts gears, there will be a gap in the gear transmission part. At this time, the gear is easily pulled by the steel cable and rotates out of control. In addition, the main shaft inside the clothes drying rack is always under stress. External forces will cause the main shaft and the transmission gear to be in a state of compression. This will apply external force to the motor and cause wear on the motor shaft. Summary of the Invention

[0004] To address the problems in the prior art, the present invention provides a shift transmission assembly for the lifting motor of a clothes drying rack.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a clothes drying rack lifting motor shift transmission assembly, including a housing, a transmission component is provided at the bottom of the housing, an adjustment component is provided on the inner wall of the housing, and a drive component is provided at the bottom of the housing; The transmission assembly includes two fixed plates, which are fixedly connected to the bottom inner wall of the housing. A rotating hole is formed on the surface of each fixed plate, and a rotating shaft is rotatably connected inside the rotating hole. Two retaining rings are symmetrically fixedly fitted onto the surface of the rotating shaft. A rotating cylinder is fixedly connected to both ends of the rotating shaft, and a steel cable is wound around the surface of the rotating cylinder. Two wire holes are symmetrically formed on the bottom inner wall of the housing, and both ends of the steel cable are inserted into the two wire holes. A first bevel gear, a second bevel gear, and a control gear are respectively fixedly fitted onto the surface of the rotating shaft. A fixed seat is fixedly connected to the inner wall of the housing, and a rubber block is embedded in the surface of the fixed seat. A retaining strip is fixedly connected to the other end of the rubber block.

[0006] Specifically, the snap ring is located between the two fixing plates, and the snap ring is in contact with the side wall of the fixing plate.

[0007] Specifically, the locking strip engages inside the tooth groove of the control gear, and the locking strip corresponds to the center horizontal line of the control gear.

[0008] Specifically, the control component includes a positioning block, which is fixedly connected to the bottom inner wall of the housing. A control cylinder is embedded inside the positioning block. A push plate is fixedly connected to the output end of the control cylinder. A U-shaped block is fixedly connected to one end of the push plate. An insertion hole is opened inside the U-shaped block. A rod is inserted into the insertion hole. Fixing blocks are fixedly connected to both ends of the rod. The fixing blocks are fixedly connected to the bottom inner wall of the housing. Snap-fit ​​blocks are fixedly connected to both ends of the U-shaped block.

[0009] Specifically, the two ends of the U-shaped block have different lengths, and the snap-fit ​​blocks are located at the upper and lower ends of the snap-fit ​​strip, respectively.

[0010] Specifically, the drive assembly includes a support plate fixedly connected to the bottom inner wall of the housing. A motor is embedded on the surface of the support plate, and a drive shaft is fixedly connected to the output end of the motor. A clamping groove is formed inside the drive shaft, and a sleeve is movably fitted onto the surface of the drive shaft. A third bevel gear and a fourth bevel gear are fixedly fitted onto the surface of the sleeve. A clamping plate is fixedly connected to the inner wall of the sleeve and is engaged inside the clamping groove. A mounting base is fixedly connected to the bottom inner wall of the housing, and a bearing is fixedly connected to the upper end of the mounting base. A hydraulic cylinder is fixedly fitted inside the bearing.

[0011] Specifically, the third and fourth bevel gears are fitted together, the cone surfaces of the third and fourth bevel gears are arranged in opposite directions, and the third and fourth bevel gears mesh with the second and first bevel gears respectively.

[0012] The beneficial effects of this invention are: (1) The clothes drying machine lifting motor shift transmission assembly of the present invention, through the snap-fit ​​of the clip in the transmission component and the control gear, combined with the elastic buffering effect of the rubber block, can limit the rotating shaft in time during the shifting process, effectively avoid the gear uncontrolled rotation caused by the steel cable pulling, solve the problem of transmission instability caused by the shifting gap in the prior art, and at the same time, the rubber block can absorb the impact load, reduce the noise in the transmission process, and improve the smoothness of operation.

[0013] (2) The clothes drying machine lifting motor shift transmission assembly of the present invention, through the coordinated design of the control component and the drive component, on the one hand, uses the control cylinder to drive the U-shaped block to drive the snap block to accurately control the separation and snapping of the snap bar, providing a stable mechanical limit guarantee for shifting operation; on the other hand, the hydraulic cylinder pushes the sleeve to slide along the drive shaft to realize the rapid meshing and switching of the third bevel gear, the fourth bevel gear and the first bevel gear, the second bevel gear, and the snapping structure of the clamp plate and the clamp groove ensures the stable transmission of drive torque, avoids the squeezing and wear of the main shaft and gears during shifting, and extends the service life of the motor and transmission components. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the gear shifting transmission assembly of the clothes drying rack lifting motor provided by the present invention. Figure 2 A cross-sectional structural schematic diagram of the clothes drying rack lifting motor shift transmission assembly provided by the present invention; Figure 3 A schematic diagram of the housing structure of the clothes drying rack lifting motor shift transmission assembly provided by the present invention; Figure 4 A schematic diagram of the rotating shaft structure of the clothes drying rack lifting motor shift transmission assembly provided by the present invention; Figure 5 A schematic diagram of the control component structure of the clothes drying rack lifting motor shift transmission assembly provided by the present invention; Figure 6 This is a schematic diagram of the drive shaft structure of the clothes drying rack lifting motor shift transmission assembly provided by the present invention; Figure 7 This is a schematic diagram of the sleeve structure of the gear shifting transmission assembly of the clothes drying rack lifting motor provided by the present invention.

[0016] In the diagram: 1. Housing; 2. Transmission assembly; 21. Fixing plate; 22. Rotary hole; 23. Rotating shaft; 24. Snap ring; 25. Rotating drum; 26. Steel cable; 27. Wire hole; 28. First bevel gear; 29. ​​Second bevel gear; 210. Control gear; 211. Fixing seat; 212. Rubber block; 213. Clip; 3. Adjustment assembly; 31. Positioning block; 32. Adjustment cylinder; 33. Push plate; 34. U-shaped block; 35. Insertion hole; 36. Insert rod; 37. Fixing block; 38. Snap block; 4. Drive assembly; 41. Support plate; 42. Motor; 43. Drive shaft; 44. Clamping groove; 45. Sleeve; 46. Third bevel gear; 47. Fourth bevel gear; 48. Clamping plate; 49. Mounting seat; 410. Bearing; 411. Hydraulic cylinder. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0018] Please see Figures 1 to 7 The present invention provides the following technical solutions: Example 1: A clothes drying rack lifting motor shift transmission assembly, including a housing 1, a transmission component 2 at the bottom of the housing 1, an adjustment component 3 on the inner wall of the housing 1, and a drive component 4 at the bottom of the housing 1. The transmission assembly 2 includes two fixing plates 21, which are fixedly connected to the bottom inner wall of the housing 1. A rotating hole 22 is provided on the surface of the fixing plate 21, and a rotating shaft 23 is rotatably connected inside the rotating hole 22. Two snap rings 24 are symmetrically fixedly sleeved on the surface of the rotating shaft 23. A rotating cylinder 25 is fixedly connected to both ends of the rotating shaft 23. A steel cable 26 is wound around the surface of the rotating cylinder 25. Two wire holes 27 are symmetrically provided on the bottom inner wall of the housing 1. The two ends of the steel cable 26 are inserted into the two wire holes 27. A first bevel gear 28, a second bevel gear 29 and a control gear 210 are fixedly sleeved on the surface of the rotating shaft 23. A fixing seat 211 is fixedly connected to the inner wall of the housing 1. A rubber block 212 is embedded on the surface of the fixing seat 211. A retaining strip 213 is fixedly connected to the other end of the rubber block 212.

[0019] The snap ring 24 is located between the two fixing plates 21, and the snap ring 24 is in contact with the side wall of the fixing plate 21.

[0020] The retaining strip 213 is engaged inside the tooth groove of the control gear 210, and the retaining strip 213 corresponds to the center horizontal line of the control gear 210.

[0021] In use, the fixed plate 21 provides stable rotational support for the rotating shaft 23 through the rotating hole 22. The snap ring 24 fits against the side wall of the fixed plate 21 to limit the axial displacement of the rotating shaft 23 and ensure structural stability during transmission. The rotating drum 25 rotates synchronously with the rotating shaft 23 to realize the winding or release of the steel cable 26, thereby driving the clothes rack of the clothes dryer to rise and fall. The wire hole 27 guides the steel cable 26 to prevent it from getting tangled. The snap-fit ​​between the control gear 210 and the snap-fit ​​strip 213 ensures that the snap-fit ​​strip 213 is always embedded in the tooth groove of the control gear 210 through the elastic force of the rubber block 212 when not shifting gears, thus limiting the rotating shaft 23 and preventing it from rotating due to the external force of the steel cable 26.

[0022] Example 2: The technical solution of this example, which differs from that of Example 1, includes: the control component 3 includes a positioning block 31, which is fixedly connected to the bottom inner wall of the housing 1. The positioning block 31 is embedded with a control cylinder 32. The output end of the control cylinder 32 is fixedly connected to a push plate 33. One end of the push plate 33 is fixedly connected to a U-shaped block 34. The U-shaped block 34 has an insertion hole 35 inside. A rod 36 is inserted into the insertion hole 35. Both ends of the rod 36 are fixedly connected to fixing blocks 37. The fixing blocks 37 are fixedly connected to the bottom inner wall of the housing 1. Both ends of the U-shaped block 34 are fixedly connected to snap-fit ​​blocks 38.

[0023] The two ends of the U-shaped block 34 have different lengths, and the snap-fit ​​blocks 38 are located at the upper and lower ends of the snap-fit ​​strip 213 respectively.

[0024] In use, the positioning block 31 provides fixed support for the regulating cylinder 32. When a gear shifting operation is required, the regulating cylinder 32 is activated and pushes the push plate 33 to move. The push plate 33 drives the U-shaped block 34 to slide along the axial direction of the insertion rod 36 (the cooperation between the insertion rod 36 and the insertion hole 35 ensures that the movement trajectory of the U-shaped block 34 is accurate). Since the two ends of the U-shaped block 34 have different lengths, when it moves, it will drive the locking block 38 at one end to squeeze the locking strip 213, so that the locking strip 213 compresses the rubber block 212 and disengages from the tooth groove of the control gear 210, releasing the limit on the rotating shaft 23 and providing conditions for gear shifting. After the gear shift is completed, the regulating cylinder 32 is reset, and the rubber block 212 elastically rebounds to push the locking strip 213 back into the tooth groove of the control gear 210, restoring the limit function.

[0025] Example 3: The technical solution of this example, which differs from that of Example 2, includes: the drive assembly 4 includes a support plate 41, which is fixedly connected to the bottom inner wall of the housing 1. A motor 42 is embedded on the surface of the support plate 41. A drive shaft 43 is fixedly connected to the output end of the motor 42. A clamping groove 44 is opened inside the drive shaft 43. A sleeve 45 is movably sleeved on the surface of the drive shaft 43. A third bevel gear 46 and a fourth bevel gear 47 are fixedly sleeved on the surface of the sleeve 45. A clamping plate 48 is fixedly connected to the inner wall of the sleeve 45. The clamping plate 48 is snapped into the clamping groove 44. A mounting base 49 is fixedly connected to the bottom inner wall of the housing 1. A bearing 410 is fixedly connected to the upper end of the mounting base 49. A hydraulic cylinder 411 is fixedly sleeved inside the bearing 410.

[0026] The third bevel gear 46 and the fourth bevel gear 47 are in contact with each other, and the conical surfaces of the third bevel gear 46 and the fourth bevel gear 47 are arranged in opposite directions. The third bevel gear 46 and the fourth bevel gear 47 are respectively meshed with the second bevel gear 29 and the first bevel gear 28.

[0027] In use, the support plate 41 provides a stable mounting base for the motor 42. After the motor 42 starts, it drives the drive shaft 43 to rotate. Through the snap-fit ​​engagement of the clamping plate 48 and the clamping groove 44, the drive shaft 43 drives the sleeve 45 to rotate synchronously, thereby causing the third bevel gear 46 and the fourth bevel gear 47 to rotate. The mounting base 49 provides support for the hydraulic cylinder 411 through the bearing 410, and the bearing 410 can prevent the hydraulic cylinder 411 from rotating with the sleeve 45. When it is necessary to switch the lifting speed or direction, the hydraulic cylinder 411 starts and pushes when the control component 3 releases the limit of the rotating shaft 23. The sleeve 45 slides along the drive shaft 43 axially, causing the third bevel gear 46 to mesh with the second bevel gear 29 and the fourth bevel gear 47 to disengage from the first bevel gear 28, or the fourth bevel gear 47 to mesh with the first bevel gear 28 and the third bevel gear 46 to disengage from the second bevel gear 29, thus achieving gear shifting. Since the cone surfaces of the third bevel gear 46 and the fourth bevel gear 47 are set in opposite directions, different meshing combinations can realize the forward and reverse rotation of the rotating shaft 23 or different speed outputs, thereby controlling the lifting direction and speed of the clothes drying rack rod. Moreover, the driving force is continuously transmitted during gear shifting, avoiding gear squeezing and wear.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clothes drying rack lifting motor shift transmission assembly, including a housing (1), a transmission component (2) is provided at the bottom of the housing (1), an adjustment component (3) is provided on the inner wall of the housing (1), and a drive component (4) is provided at the bottom of the housing (1). Its features are: The transmission assembly (2) includes two fixing plates (21), which are fixedly connected to the bottom inner wall of the housing (1). A rotating hole (22) is provided on the surface of the fixing plate (21), and a rotating shaft (23) is rotatably connected inside the rotating hole (22). Two snap rings (24) are symmetrically fixedly sleeved on the surface of the rotating shaft (23). Rotary cylinders (25) are fixedly connected to both ends of the rotating shaft (23), and steel cables (26) are wound around the surface of the rotating cylinders (25). The housing (1) Two wire holes (27) are symmetrically opened on the bottom inner wall of the machine box (1). The two ends of the steel cable (26) are inserted into the two wire holes (27). The first bevel gear (28), the second bevel gear (29) and the control gear (210) are fixedly sleeved on the surface of the shaft (23). A fixed seat (211) is fixedly connected to the inner wall of the machine box (1). A rubber block (212) is embedded on the surface of the fixed seat (211). A clip (213) is fixedly connected to the other end of the rubber block (212).

2. The clothes drying rack lifting motor shift transmission assembly according to claim 1, characterized in that: The snap ring (24) is located between the two fixing plates (21), and the snap ring (24) is in contact with the side wall of the fixing plate (21).

3. The clothes drying rack lifting motor shift transmission assembly according to claim 1, characterized in that: The locking strip (213) is engaged inside the tooth groove of the control gear (210), and the locking strip (213) corresponds to the center horizontal line of the control gear (210).

4. The clothes drying rack lifting motor shift transmission assembly according to claim 1, characterized in that: The control component (3) includes a positioning block (31), which is fixedly connected to the bottom inner wall of the housing (1). A control cylinder (32) is embedded inside the positioning block (31). A push plate (33) is fixedly connected to the output end of the control cylinder (32). A U-shaped block (34) is fixedly connected to one end of the push plate (33). An insertion hole (35) is opened inside the U-shaped block (34). A plug rod (36) is inserted into the insertion hole (35). A fixing block (37) is fixedly connected to both ends of the plug rod (36). The fixing block (37) is fixedly connected to the bottom inner wall of the housing (1). A snap-fit ​​block (38) is fixedly connected to both ends of the U-shaped block (34).

5. The clothes drying rack lifting motor shifting transmission assembly according to claim 4, characterized in that: The two ends of the U-shaped block (34) have different lengths, and the snap-fit ​​blocks (38) are located at the upper and lower ends of the snap-fit ​​strip (213).

6. The clothes drying rack lifting motor shift transmission assembly according to claim 1, characterized in that: The drive assembly (4) includes a support plate (41), which is fixedly connected to the bottom inner wall of the housing (1). A motor (42) is embedded on the surface of the support plate (41). A drive shaft (43) is fixedly connected to the output end of the motor (42). A clamping groove (44) is opened inside the drive shaft (43). A sleeve (45) is movably sleeved on the surface of the drive shaft (43). A third bevel gear (46) and a fourth bevel gear (47) are fixedly sleeved on the surface of the sleeve (45). A clamping plate (48) is fixedly connected to the inner wall of the sleeve (45). The clamping plate (48) is snapped into the clamping groove (44). A mounting base (49) is fixedly connected to the bottom inner wall of the housing (1). A bearing (410) is fixedly connected to the upper end of the mounting base (49). A hydraulic cylinder (411) is fixedly sleeved inside the bearing (410).

7. The clothes drying rack lifting motor shift transmission assembly according to claim 6, characterized in that: The third bevel gear (46) and the fourth bevel gear (47) are in contact with each other, and the cone surfaces of the third bevel gear (46) and the fourth bevel gear (47) are arranged in opposite directions. The third bevel gear (46) and the fourth bevel gear (47) are respectively meshed with the second bevel gear (29) and the first bevel gear (28).

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