Damping device of roller washing machine
By designing shock-absorbing components for the oil drum and flow regulation parts, the shock absorption problem of the drum washing machine during high and low speed rotation was solved, achieving effective buffering and support at different speeds and improving the shock absorption effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2026-04-03
AI Technical Summary
The existing shock absorption devices in drum washing machines cannot provide adequate cushioning at high and low speeds, affecting the shock absorption effect, especially with increased vibration at high speeds.
A shock-absorbing assembly comprising an oil cylinder, a flow regulating component, and a piston head was designed. By cooperating with the piston head and the flow regulating component, the oil flow resistance is adjusted to adapt to different vibration speeds, providing a buffering effect with adjustable softness and hardness.
It provides appropriate cushioning stiffness at both low and high speeds, improving shock absorption, reducing drum amplitude, and enhancing protective performance.
Smart Images
Figure CN224077772U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of washing machine technology, specifically relating to a shock absorption device for a drum washing machine. Background Technology
[0002] Front-loading washing machines are controlled by microcomputers, preventing clothes from tangling, washing evenly, and reducing wear and tear compared to top-loading washing machines. They can wash cashmere, wool, silk, and other delicate fabrics, providing a thorough wash. They can also heat the water to fully dissolve the detergent and maximize its cleaning power. In addition to washing and spin-drying, they also have functions such as disinfection, drying, and top drainage, meeting the needs of consumers in different regions and living environments.
[0003] When a drum washing machine is spinning, the drum speed gradually increases from slow to fast. The drum vibrates as it rotates. Shock absorbers are used to support and reduce this vibration. The damping hardness of commonly used shock absorbers depends on the through-holes on the piston. Larger through-holes allow for faster oil flow, resulting in lower overall damping hardness, and vice versa. The damping hardness of shock absorbers used in washing machines is not adjustable. During operation, as the drum speed increases from low to high, the vibration gradually increases. At low to medium speeds, the shock absorber provides good cushioning; however, at high speeds, the vibration intensifies, and the shock absorber can no longer provide sufficient support, resulting in insufficient cushioning performance for the high-speed drum and affecting the damping effect. Utility Model Content
[0004] The purpose of this invention is to provide a shock-absorbing device for a drum washing machine, which can provide buffering with appropriate hardness when the shock-absorbing components rotate at high and low speeds, thereby solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a shock-absorbing device for a drum washing machine, comprising an outer drum and a mounting base. The mounting base is disposed on the outer wall of the outer drum, and a shock-absorbing component is rotatably connected to the middle of the mounting base. The shock-absorbing component includes an oil drum and a flow regulating component. Both ends of the flow regulating component are fixedly connected to oil supply pipes. One side of each of the two oil supply pipes is fixedly connected to the top and bottom of the side wall of the oil drum, respectively. A piston head is slidably connected inside the oil drum, and a push rod is fixedly connected to one end of the piston head, with the push rod passing through one end of the oil drum.
[0006] Furthermore, a plugging ring and an oil seal are fixedly connected to one end of the oil cylinder, and the push rod passes through the plugging ring and the oil seal.
[0007] Furthermore, the flow regulating component includes a cylindrical shell, the oil pipe is fixedly connected to one end of the cylindrical shell, a bucket-shaped base is fixedly connected to one end of the inner wall of the cylindrical shell, an end head is movably connected inside the cylindrical shell, a spring is fixedly connected to one end of the end head, and one end of the spring is fixedly connected to the other end of the inner wall of the cylindrical shell.
[0008] Furthermore, a through hole is provided in the middle of the end, and the diameter of the through hole is equal to the inner diameter of the oil pipeline.
[0009] Furthermore, the bottom end of the end is a tapered structure.
[0010] Furthermore, the bottom end of the piston head is fixedly connected to an arc-shaped plate that is equidistantly distributed around the axis of the piston head.
[0011] Furthermore, both one end of the oil cylinder and one end of the push rod are fixedly connected to an installation ring.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: when the vibration is small, the oil can pass smoothly through the flow regulating component. At this time, the overall damping performance of the damping component is relatively soft, providing good buffering under low vibration conditions. When the drum rotates at high speed, the vibration is relatively large. At this time, the oil experiences greater resistance inside the flow regulating component. The damping component provides better support and buffering for the outer cylinder of the drum, so that the damping component can provide buffering with appropriate hardness at both high and low speeds, improving practicality. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a front view of the present invention;
[0015] Figure 3 This is a front sectional view of the shock absorption component of this utility model;
[0016] Figure 4 This utility model Figure 3 A magnified structural diagram of part A in the middle.
[0017] The attached diagram lists the components represented by each number as follows:
[0018] 1. Outer drum; 2. Mounting base; 3. Shock absorption assembly; 31. Oil cylinder; 311. Plug ring; 312. Oil seal; 32. Flow regulating component; 321. Cylindrical shell; 322. Bucket-shaped base; 323. End; 324. Through hole; 325. Spring; 33. Push rod; 34. Mounting ring; 35. Piston head; 36. Arc plate; 37. Oil delivery pipe. Detailed Implementation
[0019] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0020] like Figure 1-3 As shown, a shock-absorbing device for a drum washing machine includes an outer drum 1 and a mounting base 2. The mounting base 2 is disposed on the outer wall of the outer drum 1. A shock-absorbing component 3 is rotatably connected to the middle of the mounting base 2. The shock-absorbing component 3 includes an oil cylinder 31 and a flow regulating component 32. Both ends of the flow regulating component 32 are fixedly connected to oil supply pipes 37. One side of each of the two oil supply pipes 37 is fixedly connected to the top and bottom of the side wall of the oil cylinder 31, respectively. A piston head 35 is slidably connected inside the oil cylinder 31. A push rod 33 is fixedly connected to one end of the piston head 35. The push rod 33 passes through one end of the oil cylinder 31. A plugging ring 311 and an oil seal 312 are fixedly connected to one end of the oil cylinder 31. The push rod 33 passes through the plugging ring 311 and the oil seal 312.
[0021] According to the above structure, during use, when the washing machine is spinning at high speed, the drum of the washing machine will vibrate. When the vibration is small, the oil inside the oil drum 31 can pass smoothly through the flow regulating component 32 by the push of the piston head 35. At this time, the overall damping performance of the shock absorption component 3 is relatively soft, providing good buffering under low vibration conditions. When the drum rotates at high speed, the vibration is relatively large. At this time, the oil inside the flow regulating component 32 experiences greater resistance. At this time, the shock absorption component 3 will provide better support and buffering for the outer drum 1, so that the shock absorption component 3 can provide buffering with appropriate hardness at both high and low speeds, improving practicality.
[0022] like Figure 2-4 As shown, the flow regulating component 32 includes a cylindrical shell 321, an oil pipe 37 is fixedly connected to one end of the cylindrical shell 321, a bucket-shaped base 322 is fixedly connected to one end of the inner wall of the cylindrical shell 321, an end head 323 is movably connected inside the cylindrical shell 321, a spring 325 is fixedly connected to one end of the end head 323, one end of the spring 325 is fixedly connected to the other end of the inner wall of the cylindrical shell 321, and the bottom end of the end head 323 has a conical structure.
[0023] According to the above structure, during use, when the vibration is small, the oil enters the flow regulating component 32 at a low speed. The oil can pass through the through hole 324 and the gap between the end 323 and the cylindrical shell 321, which can provide better buffering. When the vibration is large, the oil enters the cylindrical shell 321 at a large speed. At this time, the oil impacts the end 323, causing the end 323 to move downward. The bottom end of the end 323 contacts the top end of the bucket-shaped base 322. At this time, the oil can only pass through the through hole 324. Thus, it can provide better support while providing buffering for the outer cylinder 1 of the drum, reduce the amplitude of the outer cylinder 1 of the drum, and improve the protection performance of the outer cylinder 1 of the drum.
[0024] like Figure 3 and 4 As shown, a through hole 324 is provided in the middle of the end 323, and the diameter of the through hole 324 is equal to the inner diameter of the oil pipe 37.
[0025] According to the above structure, when the bottom end of the end 323 contacts the bucket-shaped base 322, the oil can pass through the through hole 324.
[0026] like Figure 3 As shown, the bottom end of the piston head 35 is fixedly connected to an arc-shaped plate 36 that is equidistantly distributed around the axis of the piston head 35, and one end of the oil cylinder 31 and one end of the push rod 33 are both fixedly connected to an mounting ring 34.
[0027] According to the above structure, the mounting ring 34 facilitates the installation of the shock absorption assembly 3, and the arc plate 36 prevents the piston head 35 from moving downwards excessively and blocking the port of the bottom oil supply pipe 37.
[0028] The working principle of this utility model is as follows: When the washing machine is spinning at high speed, the drum of the washing machine will vibrate. When the vibration is small, the oil enters the flow regulating component 32 at a low speed. The oil can pass through the through hole 324 and the gap between the end 323 and the cylindrical shell 321. At this time, the overall damping performance of the damping component 3 is relatively soft, providing good buffering under low vibration. When the drum rotates at high speed, the vibration is relatively large, and the oil enters the cylindrical shell 321 at a higher speed. At this time, the oil impacts the end 323, causing the end 323 to move downward. The bottom end of the end 323 contacts the top end of the bucket-shaped base 322. At this time, the oil can only pass through the through hole 324. Thus, it can provide good support while providing buffering for the outer drum 1, reducing the amplitude of the outer drum 1, and improving the protection performance of the outer drum 1. The arc plate 36 is set to prevent the piston head 35 from moving downward too much and blocking the port of the bottom oil pipe 37.
[0029] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A damping device of a drum washing machine, comprising a drum outer tub (1) and a mounting seat (2), characterized in that: The mounting seat (2) is arranged on the outer wall of the outer cylinder (1), the middle part of the mounting seat (2) is rotationally connected with a damping assembly (3), the damping assembly (3) comprises an oil cylinder (31) and a flow adjusting part (32), both ends of the flow adjusting part (32) are fixedly connected with oil delivery pipes (37), one side of the two oil delivery pipes (37) is respectively fixedly connected with the top and bottom of the side wall of the oil cylinder (31), the inside of the oil cylinder (31) is slidably connected with a piston head (35), one end of the piston head (35) is fixedly connected with a push rod (33), one end of the push rod (33) penetrates the oil cylinder (31); One end of the oil cylinder (31) is fixedly connected with a plug ring (311) and an oil seal (312), the push rod (33) penetrates the plug ring (311) and the oil seal (312); The flow adjusting part (32) comprises a cylindrical shell (321), the oil delivery pipe (37) is fixedly connected with one end of the cylindrical shell (321), one end of the inner wall of the cylindrical shell (321) is fixedly connected with a bucket-shaped base (322), the inside of the cylindrical shell (321) is movably connected with an end head (323), one end of the end head (323) is fixedly connected with a spring (325), one end of the spring (325) is fixedly connected with the other end of the inner wall of the cylindrical shell (321).
2. The damping device of a drum-type washing machine according to claim 1, wherein: The middle part of the end head (323) is provided with a through hole (324), the diameter of the through hole (324) is equal to the inner diameter of the oil delivery pipe (37).
3. A damping device for a drum washing machine according to claim 2, characterized in that: The bottom end of the end head (323) is a conical structure.
4. A damping device for a drum washing machine according to claim 3, characterized in that: The bottom end of the piston head (35) is fixedly connected with arc-shaped plates (36) which are equidistantly distributed around the axis of the piston head (35).
5. A damping device for a drum washing machine according to claim 4, characterized in that: One end of the oil cylinder (31) and one end of the push rod (33) are fixedly connected with mounting rings (34).