Friction type suspender assembly capable of restraining high-speed vibration

Abstract

The utility model relates to the technical field of washing machine accessories, and particularly discloses a friction type suspender assembly capable of restraining high-speed vibration. The suspender piece is slidably sleeved with a damper upper piece, a damper middle piece, a damper lower piece, a damping spring, a bracket, a waterproof cap and a ball seat. Friction force is generated through surface contact between the outer surface of the damper middle piece made of polyurethane and the damper upper piece and the damper lower piece made of nylon 6, so that when the washing machine vibrates at the initial low speed and high amplitude, the friction force between the damper middle piece and the suspender piece, the damper upper piece and the damper lower piece all plays a role in buffering and damping; when the washing machine enters high-speed low-amplitude vibration, due to the fact that the friction force between the middle of the damper and the suspender piece is larger, the friction force between the middle of the damper and the upper part of the damper plays a buffering role in actual small amplitude, and the problem that the suspender assembly does not conduct targeted damping on the high-speed low-amplitude vibration is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of washing machine accessories, in particular to a friction type suspension rod assembly capable of suppressing high-speed vibration. Background Art

[0002] The working principle of the air damping boom is to absorb vibration by relying on the compressive deformation of the shock-absorbing spring, and at the same time, to absorb vibration by reducing the volume and increasing the air pressure due to the compression of the air, thereby achieving double shock absorption and damping, so that it can withstand reciprocating vibrations with greater pressure.

[0003] The Chinese invention patent with publication number CN109162067B disclosed a shock absorbing device for a washing machine and a washing machine on April 21, 2023, including a suspension rod, a sleeve, a spring and a spring seat, one end of the suspension rod is movably arranged in the sleeve, the spring and the spring seat are both arranged on the suspension rod and located in the sleeve, the spring seat is provided with a friction member, the friction member is in sliding contact with the inner wall of the sleeve, and the spring seat and / or the friction member are provided with air holes to form air damping when the suspension rod moves. The beneficial effect of the present invention is that by providing the friction member and the air hole, the sliding friction between the friction member and the inner wall of the sleeve generates constant friction damping, and at the same time, the air hole is used to form air damping when the suspension rod moves, and the friction damping and air damping are combined, so that the shock absorbing device generates a variable damping force as the vibration size changes, so as to better achieve vibration reduction and noise reduction of the washing machine during dehydration.

[0004] However, the above-mentioned disclosed scheme has the following shortcomings: the existing friction part movement path is not restricted, and the number of friction parts providing friction is small, which cannot generate a large amount of damping friction force, and cannot buffer and reduce the upper and lower vibrations of heavier weights, so it cannot adapt to the shock-absorbing function requirements of heavy washing machines, resulting in large vibration and high noise during the operation of heavy washing machines. Utility Model Content

[0005] The utility model aims to solve the technical problem that the existing friction parts have no restriction on the movement path, and the number of friction parts providing friction is small, so a large amount of damping friction force cannot be generated, and the upper and lower vibrations of a heavier weight cannot be buffered and shock-absorbed, so the shock-absorbing function requirements of a heavy washing machine cannot be adapted, resulting in a large amount of noise during the vibration operation of the heavy washing machine, and provides a friction suspension rod assembly that can suppress high-speed vibration.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model discloses a friction type suspension rod assembly capable of suppressing high-speed vibration, comprising a suspension rod member; a damper upper member, a damper middle member, a damper lower member, a shock absorbing spring, a bracket, a waterproof cap and a ball seat are slidably sleeved on the suspension rod member; the damper upper member and the damper lower member are fixedly connected to each other; the damper middle member is located between the damper upper member and the damper lower member; a circular tube groove is provided on the damper upper member corresponding to the damper middle member; and a circular ring groove is provided on the damper lower member corresponding to the damper middle member.

[0008] Furthermore, an air cover is sleeved on the damper upper part; and a low-amplitude vibration stroke of the damper upper part is provided in the air cover.

[0009] Furthermore, the damper middle piece slides in the damper upper piece.

[0010] Furthermore, the damper upper piece, the damper lower piece and the bracket are made of nylon VI; and the damper middle piece is made of polyurethane.

[0011] Furthermore, the suspension rod is made by galvanizing the surface of low-carbon steel; the upper end of the suspension rod is flattened and the lower end is bent.

[0012] The utility model provides a friction type suspension rod assembly capable of suppressing high-speed vibration, which has the following features:

[0013] Beneficial effects:

[0014] 1. The utility model generates friction force through the surface contact between the outer surface of the damper middle part made of polyurethane and the damper upper part and the damper lower part made of nylon VI, and at the same time generates friction force between the inner surface of the damper middle part and the outer surface of the suspension rod part made of low carbon steel. Due to material reasons, the friction force between the damper middle part and the suspension rod part is greater than the friction force between the damper middle part and the damper upper part and the damper lower part, so that when the washing machine initially vibrates at a low speed and a high amplitude, the friction forces between the damper middle part and the suspension rod part, the damper upper part and the damper lower part all play a role in buffering and shock absorption. When the washing machine enters a high-speed and low-amplitude vibration, the friction force between the damper middle part and the suspension rod part is greater and plays a role in buffering and shock absorption, thereby achieving the function of buffering and shock absorption for both low-speed and high-amplitude vibrations and high-speed and low-amplitude vibrations, and solving the problem that the existing suspension rod assembly does not have a targeted shock absorption for high-speed and low-amplitude vibrations;

[0015] 2. The utility model forms a cavity through the air hood, so that the air inside is restricted, so that the lower part of the damper moves in the air hood to squeeze the air to form air damping, thereby suppressing vibration and reducing the noise generated by the entire washing machine; the lower cover cap is detachably connected to the end of the air hood to form a cavity, so that the air inside is restricted, so that the lower part of the damper moves in the air hood to squeeze the air to form air damping, thereby suppressing vibration and reducing the noise generated by the entire washing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings;

[0017] Figure 1 It is a front structural schematic diagram of the utility model;

[0018] Figure 2 It is a front cross-sectional structural schematic diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the internal axonometric structure of the utility model.

[0020] Explanation of the numbers in the figure: 1. Suspension rod; 2. Damper upper part; 3. Damper middle part; 4. Damper lower part; 5. Shock-absorbing spring; 6. Bracket; 7. Waterproof cap; 8. Ball seat; 9. Lower cover cap; 10. Air cover; 11. Circular ring groove; 12. Circular tube groove. DETAILED DESCRIPTION

[0021] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that all directional indications in the embodiments of the present invention (such as up-down-left-right-front-back...) are only used to explain the relative position relationship - movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0024] See also Figure 1-3As shown, a friction type suspension rod assembly capable of suppressing high-speed vibration comprises a suspension rod member 1; a damper upper member 2, a damper middle member 3, a damper lower member 4, a shock absorbing spring 5, a bracket 6, a waterproof cap 7 and a ball seat 8 are slidably sleeved on the suspension rod member 1; the damper upper member 2 and the damper lower member 4 are fixedly connected to each other; the damper middle member 3 is located between the damper upper member 2 and the damper lower member 4; a circular tube groove 12 is provided on the damper upper member 2 corresponding to the damper middle member 3; a circular ring groove 11 is provided on the damper lower member 4 corresponding to the damper middle member 3; when working, friction is generated by the surface contact between the outer surface of the damper middle member 3 made of polyurethane and the damper upper member 2 and the damper lower member 4 made of nylon six, and at the same time, the inner surface of the damper middle member 3 and the low Friction is generated between the outer surfaces of the carbon steel suspension rod member 1. Due to material reasons, the friction between the damper middle member 3 and the suspension rod member 1 is greater than the friction between the damper middle member 3 and the damper upper member 2 and the damper lower member 4. Therefore, when the washing machine initially vibrates at a low speed and a high amplitude, the friction between the damper middle member 3 and the suspension rod member 1, the damper upper member 2 and the damper lower member 4 all play a role in buffering and shock absorption. When the washing machine enters a high-speed and low-amplitude vibration, the friction between the damper middle member 3 and the suspension rod member 1 is greater and plays a role in buffering and shock absorption, thereby achieving the function of buffering and shock absorption for both low-speed and high-amplitude vibrations and high-speed and low-amplitude vibrations, thereby solving the problem that the existing suspension rod assembly has no targeted shock absorption for high-speed and low-amplitude vibrations.

[0025] An air cover 10 is sleeved on the damper upper part 2; the air cover 10 has a low-amplitude vibration stroke of the damper upper part 2; when working, a cavity is formed by the air cover 10, so that the air inside is restricted, so that the damper lower part 4 moves in the air cover 10 to squeeze the air to form air damping, thereby suppressing vibration and reducing the overall noise generated by the washing machine.

[0026] The damper middle part 3 slides in the damper upper part 2; when working, the damper middle part 3 slides in the damper upper part 2, and the sliding generates friction, thereby suppressing the movement of the damper middle part 3 and the damper upper part 2, thereby achieving the vibration reduction function.

[0027] The damper upper part 2, the damper lower part 4 and the bracket 6 are made of nylon six; the damper middle part 3 is made of polyurethane; when working, the damper middle part 3 made of polyurethane is slidably and frictionally sleeved with the suspension rod part 1 on one side, so that the friction force is large, and the other side is contacted and frictionally connected with the damper upper part 2 and the damper lower part 4 made of nylon six, so that the friction force is smaller than the friction force between the damper middle part 3 and the suspension rod part 1. Therefore, when the washing machine is running at a high speed, due to the small vibration amplitude, the vibration is mainly reduced by the friction between the damper middle part 3 and the suspension rod part 1. When the washing machine is initially running, the vibration amplitude is large, and the internal and external friction forces are used for shock absorption at the same time. At the same time, air damping shock absorption is realized in the space of the annular groove 11 and the circular tube groove 12 at both ends of the damper middle part 3, so that when the washing machine is initially running at a low speed, the large amplitude vibration is absorbed into a small amplitude vibration, thereby reducing noise, solving the problem that the existing suspension rod assembly is simply stacked with high friction, resulting in good effect at low speed vibration and poor effect at high speed vibration.

[0028] The suspension rod member 1 is made of low-carbon steel with galvanized surface; the upper end of the suspension rod member 1 is flattened and the lower end is bent; when working, the damper upper member 2, the damper middle member 3, the damper lower member 4, the shock-absorbing spring 5, the bracket 6, the waterproof cap 7 and the ball seat 8 which are sleeved on the suspension rod member 1 can be restricted by the processing process of flattening the upper end of the suspension rod member 1 and bending the lower end, thereby ensuring that the connection relationship is maintained without falling off in a vibrating use environment.

[0029] By adopting the above scheme, when the utility model is in use, friction is generated by the surface contact between the outer surface of the damper middle part 3 made of polyurethane and the damper upper part 2 and the damper lower part 4 made of nylon VI. At the same time, friction is generated between the inner surface of the damper middle part 3 and the outer surface of the suspension rod part 1 made of low carbon steel. Due to material reasons, the friction between the damper middle part 3 and the suspension rod part 1 is greater than the friction between the damper middle part 3 and the damper upper part 2 and the damper lower part 4. Therefore, when the washing machine initially vibrates at a low speed and a high amplitude, the friction between the damper middle part 3 and the suspension rod part 1, the damper upper part 2 and the damper lower part 4 all play a role in buffering and shock absorption. When the washing machine enters a high speed, the friction between the damper middle part 3 and the suspension rod part 1, the damper upper part 2 and the damper lower part 4 is reduced. When the low amplitude vibration occurs at a high speed, the friction between the damper middle part 3 and the suspension rod part 1 is greater, which plays a role of buffering and shock absorption, thereby achieving the function of buffering and shock absorption for both the low amplitude vibration at a low speed and the low amplitude vibration at a high speed, solving the problem that the existing suspension rod assembly has no targeted shock absorption for the low amplitude vibration at a high speed; a cavity is formed by the air cover 10, so that the air inside is restricted, so that the damper lower part 4 moves in the air cover 10 to squeeze the air to form air damping, thereby suppressing vibration and reducing the noise generated by the washing machine as a whole; a cavity is formed by the detachable connection between the lower cover cap 9 and the end of the air cover 10, so that the air inside is restricted, The damper lower part 4 moves in the air cover 10 to squeeze the air to form air damping, thereby suppressing vibration and reducing the noise generated by the entire washing machine; the damper middle part 3 made of polyurethane is slidably and frictionally sleeved with the suspension rod part 1 on one side, which has a large friction force, and the other side is in contact and frictionally connected with the damper upper part 2 and the damper lower part 4 made of nylon six, so that the friction force is smaller than the friction force between the damper middle part 3 and the suspension rod part 1. Therefore, when the washing machine is running at high speed, due to the small vibration amplitude, the friction between the damper middle part 3 and the suspension rod part 1 is mainly used for shock absorption. When the washing machine is initially running, the vibration amplitude is large, and the internal and external friction forces are used for shock absorption at the same time. In the space between the annular grooves 11 and the circular tube grooves 12 at both ends of the middle part 3, air damping and shock absorption are realized at the same time, so that when the washing machine is initially running at a low speed, large-amplitude vibrations are absorbed and turned into small-amplitude vibrations, thereby reducing noise and solving the problem that the existing suspension rod assembly simply piles up friction, resulting in good effect at low-speed vibration but poor effect at high-speed vibration; through the processing process of flattening the upper end of the suspension rod part 1 and bending the lower end, the damper upper part 2, the damper middle part 3, the damper lower part 4, the shock-absorbing spring 5, the bracket 6, the waterproof cap 7 and the ball seat 8 connected to the suspension rod part 1 can be restricted, thereby ensuring that their own connection relationship is maintained without falling off in a vibrating use environment.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A friction type boom assembly capable of suppressing high-speed vibration, characterized in that; The invention comprises a suspension rod (1); a damper upper part (2), a damper middle part (3), a damper lower part (4), a shock absorbing spring (5), a bracket (6), a waterproof cap (7) and a ball seat (8) are slidably sleeved on the suspension rod (1); the damper upper part (2) and the damper lower part (4) are fixedly connected to each other; the damper middle part (3) is located between the damper upper part (2) and the damper lower part (4); a circular tube groove (12) is provided on the damper upper part (2) corresponding to the damper middle part (3); and a circular ring groove (11) is provided on the damper lower part (4) corresponding to the damper middle part (3).

2. The friction type suspension rod assembly capable of suppressing high-speed vibration according to claim 1, characterized in that: An air cover (10) is sleeved on the damper upper part (2); and a low-amplitude vibration stroke of the damper upper part (2) is provided in the air cover (10).

3. The friction type suspension rod assembly capable of suppressing high-speed vibration according to claim 2, characterized in that: The damper middle part (3) slides inside the damper upper part (2).

4. The friction type suspension rod assembly capable of suppressing high-speed vibration according to claim 3, characterized in that: The damper upper part (2), the damper lower part (4) and the bracket (6) are made of nylon VI; the damper middle part (3) is made of polyurethane.

5. The friction type suspension rod assembly capable of suppressing high-speed vibration according to claim 4, characterized in that: The suspension rod member (1) is made by galvanizing the surface of low-carbon steel; the upper end of the suspension rod member (1) is flattened and the lower end is bent.

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