Shock absorber and clothes processing equipment

Abstract

The utility model provides a shock absorber and clothes treating equipment, the shock absorber comprises a sleeve, a piston rod and a partition plate assembly, the piston rod is telescopically inserted into the sleeve, and a shock absorption cavity is defined by the piston rod and the inner wall of the sleeve; the partition plate assembly is movably arranged in the damping cavity and forms a sealed first air cavity and a damping liquid cavity which are sequentially arranged in the contraction direction of the piston rod, and the damping liquid cavity is filled with damping liquid; when the telescopic range of the piston rod is smaller than or equal to a preset threshold value, the first air cavity is pressed to generate damping, and when the telescopic range of the piston rod exceeds the preset threshold value, the first air cavity is pressed and pushes the damping liquid cavity, so that the damping liquid flows to generate damping. According to the shock absorber, different damping forces can be adaptively provided according to the amplitude of the connecting equipment, the shock absorption effect of the shock absorber is improved, the clothes treating equipment can be subjected to good shock absorption and noise reduction, and the use experience of a user is improved.

Description

Technical Field

[0001] This application belongs to the technical field of clothing treatment equipment, and particularly relates to a shock absorber and a clothing treatment equipment. Background Art

[0002] With the improvement of the material living standard, clothing treatment equipment such as washing machines and dryers has become important household appliances in people's daily lives. However, clothing treatment equipment is prone to generate large vibrations and noises when treating clothes. For example, washing machines usually generate large vibration noises during washing and dehydration, and dryers generate large vibration noises during drying, which affect the user experience and are also likely to affect the service life of the clothing treatment equipment.

[0003] Regarding the vibration and noise problems of clothing treatment equipment, some washing machines on the market currently absorb and reduce the vibrations generated during the operation of the washing machine by adding shock absorbers. However, the damping provided by the existing shock absorbers is not adjustable, and the shock absorption and noise reduction effects are not good. Utility Model Content

[0004] The embodiments of this application provide a shock absorber and a clothing treatment equipment, which can solve the problem that the existing shock absorbers have poor shock absorption and noise reduction effects.

[0005] To achieve the above object, this application provides the following technical solutions:

[0006] A shock absorber, comprising:

[0007] A sleeve;

[0008] A piston rod, telescopically inserted into the sleeve, and enclosing a shock absorption cavity with the inner wall of the sleeve;

[0009] A partition assembly, movably arranged in the shock absorption cavity, a first air cavity is formed between the partition assembly and the piston rod, a damping liquid cavity is provided in the partition assembly, the damping liquid cavity and the first air cavity are sealed from each other and are spaced apart in the telescopic direction of the piston rod, and the damping liquid cavity is filled with damping liquid;

[0010] Wherein, when the telescopic range of the piston rod is less than or equal to a preset threshold, the first air cavity is compressed to generate damping, and when the telescopic range of the piston rod exceeds the preset threshold, the first air cavity is compressed and pushes the partition assembly, and the damping liquid flows in the damping liquid cavity to generate damping.

[0011] In some embodiments, the partition assembly includes a first partition and a second partition movably arranged in the shock absorption cavity;

[0012] Wherein, the first air cavity is formed between the first partition and the piston rod, and the damping liquid cavity is formed between the first partition and the second partition.

[0013] In some embodiments, a sealed second air chamber is formed between the second partition and the bottom of the sleeve. When the damping liquid chamber is pushed, the second air chamber is compressed to generate damping.

[0014] In some embodiments, the partition assembly further includes a third partition disposed between the first partition and the second partition, and a valve body is provided on the third partition;

[0015] When the damping liquid chamber is pushed, the damping liquid flows through the valve body on both sides of the third partition.

[0016] In some embodiments, the valve body includes a first one-way valve and a second one-way valve, and the first one-way valve and the second one-way valve are arranged in opposite directions on the third partition.

[0017] In some embodiments, the first one-way valve and the second one-way valve have the same number.

[0018] In some embodiments, the partition assembly further includes an elastic member, and the third partition is connected to the first partition through the elastic member.

[0019] In some embodiments, a sealing ring is clamped between the circumferential side wall of the piston rod and the sleeve.

[0020] In some embodiments, an annular groove is formed on the circumferential side wall of the piston rod or on the circumferential inner wall of the sleeve, and the sealing ring is clamped in the annular groove.

[0021] A laundry treating apparatus, comprising:

[0022] A housing;

[0023] A laundry treating tub disposed in the housing;

[0024] The above shock absorber, and the laundry treating tub is supported on the housing by the shock absorber.

[0025] The shock absorber and the laundry treating apparatus provided by the embodiments of the present application can adaptively provide different magnitudes of damping forces according to the amplitude of the connected device. When the device vibrates slightly, the first air chamber acts alone to provide a small damping force for shock absorption. When the device vibrates greatly, the first air chamber and the damping liquid chamber act together to provide a greater damping force for shock absorption. In this way, the shock absorption and noise reduction effect of the shock absorber can be improved. Description of the Drawings

[0026] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0027] To more fully understand the present application and its beneficial effects, the following will be described in conjunction with the accompanying drawings. Among them, the same reference numerals in the following description represent the same parts.

[0028] Figure 1 It is a schematic structural diagram of a shock absorber provided by an embodiment of the present application.

[0029] Figure 2 is Figure 1 a cross-sectional view of the shock absorber shown.

[0030] Figure 3 It is a schematic structural diagram of a third partition provided by an embodiment of the present application.

[0031] Figure 4 is Figure 3 a cross-sectional view of the third partition shown along the B-B direction.

[0032] Figure 5 It is a cross-sectional view of another shock absorber provided by an embodiment of the present application.

[0033] Figure 6 It is a schematic structural diagram of a laundry treatment device provided by an embodiment of the present application.

[0034] Explanation of reference numerals:

[0035] 10, laundry treatment device;

[0036] 100, shock absorber; 200, housing; 300, laundry treatment tub;

[0037] 110, sleeve; 120, piston rod; 130, partition assembly; 140, shock cavity; 130a, first partition assembly; 130b, second partition assembly;

[0038] 111, bottom of the cylinder; 131, first partition; 132, second partition; 133, third partition; 134, valve body; 135, elastic member; 141, first air chamber; 142, damping liquid chamber; 143, second air chamber;

[0039] 1341, first one-way valve; 1342, second one-way valve;

[0040] H1, first direction; H2, second direction. Detailed implementation manners

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0042] In order to achieve vibration reduction of a washing machine, a shock absorber in the prior art includes a cylinder barrel and a plunger. The plunger is movably inserted into the cylinder barrel, and a friction ring is provided between the two. Damping is provided by the friction between the friction ring and the plunger, thereby reducing the vibration of the washing machine. However, the damping force provided by this shock absorber is not adjustable. If the damping force is too small, the shock absorption effect of the shock absorber during the low-speed stage of the washing machine is poor. If the damping force is too large, the transmission noise generated during the high-speed dehydration of the washing machine is relatively large. For this reason, the embodiments of the present application propose a shock absorber, which is specifically described in the following embodiments.

[0043] The embodiments of the present application provide a shock absorber. Exemplarily, please refer to Figure 1 , Figure 1 which is a schematic structural diagram of the shock absorber provided by the embodiments of the present application, Figure 2 is Figure 1 a cross-sectional view of the shock absorber shown in. The shock absorber 100 includes a sleeve 110, a piston rod 120, and a partition assembly 130.

[0044] The piston rod 120 is telescopically inserted into the sleeve 110, and a shock absorption cavity 140 is formed by surrounding the inner wall of the sleeve 110; the partition assembly 130 is movably disposed in the shock absorption cavity 140. A first air cavity 141 is formed between the partition assembly 130 and the piston rod 120. The partition assembly 130 has a damping liquid cavity 142 therein. The damping liquid cavity 142 and the first air cavity 141 are sealed from each other and are spaced apart in the telescopic direction of the piston rod 120. The damping liquid cavity 142 is filled with damping liquid; wherein, when the telescopic range of the piston rod 120 is less than or equal to a preset threshold, the first air cavity 141 is compressed to generate damping. When the telescopic range of the piston rod 120 exceeds the preset threshold, the first air cavity 141 is compressed and pushes the partition assembly 130, and damping is generated by the flow of the damping liquid in the damping liquid cavity 142.

[0045] Among them, the piston rod 120 slides along its extending direction within the sleeve 110. During the sliding process, the outer wall of the piston rod 120 remains in close contact with the inner wall of the sleeve 110. Moreover, the partition assembly 130 is in slidable and close contact with the inner wall of the sleeve 110 to ensure the sealing performance between the first air chamber 141 and the damping liquid chamber 142. The first air chamber 141 is filled with compressible gas. Optionally, the first air chamber 141 is filled with air, and the damping liquid in the damping liquid chamber 142 is damping grease. It should be noted that when the first air chamber 141 is pressurized, the gas in the first air chamber 141 compresses or expands. During this process, on the one hand, the flow of the gas can generate a viscous effect to provide damping force, and on the other hand, the interaction between gas molecules can convert kinetic energy into heat energy, thereby absorbing the vibration generated by the device connected to the shock absorber 100. In addition, when the damping liquid in the damping liquid chamber 142 flows, on the one hand, it has the characteristic of resisting flow to generate damping, and on the other hand, the wall surface contacted during the flow of the damping liquid generates heat through friction, converting kinetic energy into heat energy, thereby absorbing part of the vibration.

[0046] Among them, the telescopic range of the piston rod 120 is related to the shock intensity of the shock absorber 100, that is, related to the vibration amplitude of the device connected to the shock absorber. Specifically, if the vibration amplitude of the device is large, the telescopic amplitude of the piston rod 120 is larger; if the vibration amplitude of the device is small, the telescopic amplitude of the piston rod 120 is smaller.

[0047] In practical applications, the vibration amplitudes generated by the device connected to the shock absorber 100 in different operating states may be different. For example, the amplitudes generated by a laundry treatment device during operation under different eccentric conditions are different. For different amplitudes, it is necessary to provide a damping force adapted to them to achieve better shock absorption and noise reduction effects. It can be understood that for the shock absorber 100 of the present application, when the vibration generated by the device connected to the shock absorber 100 during operation is small, the telescopic amplitude of the piston rod 120 is small, and only the first air chamber 141 is pressurized to provide a small damping force; when the vibration generated by the device connected to the shock absorber 100 during operation is large, the telescopic amplitude of the piston rod 120 exceeds a preset threshold, and not only the first air chamber 141 is pressurized to provide damping force, but also the damping liquid chamber 142 acts to provide a greater damping force; in this way, good shock absorption and noise reduction can be achieved for the device.

[0048] The shock absorber 100 provided by the embodiment of the present application can adaptively provide different magnitudes of damping force according to the amplitude of the connected device. When the device vibrates slightly, the first air chamber 141 acts alone to provide a small damping force for shock absorption. When the device vibrates greatly, the first air chamber 141 and the damping liquid chamber 142 act together to provide a greater damping force for shock absorption. In this way, the shock absorption and noise reduction effect of the shock absorber 100 can be improved.

[0049] Exemplarily, the partition assembly 130 includes a first partition 131 and a second partition 132 movably disposed in the shock-absorbing cavity 140; wherein, a first air cavity 141 is formed between the first partition 131 and the piston rod 120, and a damping liquid cavity 142 is formed between the first partition 131 and the second partition 132.

[0050] Wherein, the first partition 131, the second partition 132 and the inner wall of the sleeve 110 are slidably and tightly fitted to ensure the sealing of the first air cavity 141 and the damping liquid cavity 142. It can be understood that when the telescopic range of the piston rod 120 does not exceed the preset threshold, the piston rod 120 slides to change the volume of the first air cavity 141, so that the gas in the first air cavity 141 is compressed or expanded. However, the compressibility of the gas in the first air cavity 141 is limited. When the telescopic range of the piston rod 120 exceeds the preset threshold, the first air cavity 141 cannot be further compressed or expanded, then the first air cavity 141 pushes the first partition 131 to move. Since the damping liquid is not compressible, the volume of the damping liquid cavity 142 will not change. Therefore, when the first partition 131 moves, the second partition 132 must move synchronously to maintain the volume of the damping liquid cavity 142 and make the damping liquid cavity 142 move relative to the sleeve 110. It can be understood that the second partition 132 is spaced from the bottom 111 of the sleeve 110 to ensure that the damping liquid cavity 142 has a movement space.

[0051] In some embodiments, a sealed second air cavity 143 is formed between the second partition 132 and the bottom 111 of the sleeve 110. When the damping liquid cavity 142 is pushed, the second air cavity 143 is compressed to generate damping.

[0052] Wherein, the gas filled in the second air cavity 143 can be the same as or different from the gas filled in the first air cavity 141. Optionally, air is filled in both the second air cavity 143 and the first air cavity 141. It can be understood that the second partition 132 slides to change the volume of the second air cavity 143, so that the gas in the second air cavity 143 is compressed or expanded. When the telescopic range of the piston rod 120 exceeds the preset threshold, the compression or expansion of the first air cavity 141 reaches the limit, and the first air cavity 141 pushes the first partition 131 and the second partition 132 to make the damping liquid cavity 142 move relative to the sleeve 110 and compress the second air cavity 143; thus, the first air cavity 141, the damping liquid cavity 142 and the second air cavity 143 will act together to provide greater damping.

[0053] In some embodiments, the partition assembly 130 further includes a third partition 133 disposed between the first partition 131 and the second partition 132, and a valve body 134 is provided on the third partition 133; when the damping liquid cavity 142 is pushed, the damping liquid flows through the valve body 134 on both sides of the third partition 133.

[0054] It should be noted that when the damping fluid flows through the valve body 134 and the third partition 133, friction with the wall surface can provide a large damping force.

[0055] Exemplarily, please refer to Figure 3 - Figure 4 , Figure 3 which is a schematic structural view of the third partition provided by an embodiment of the present application, Figure 4 and Figure 3 is a sectional view of the third partition shown in the B-B direction. The valve body 134 includes a first check valve 1341 and a second check valve 1342, and the first check valve 1341 and the second check valve 1342 are arranged in opposite directions on the third partition 133.

[0056] It should be noted that the working states of the first check valve 1341 and the second check valve 1342 are related to the flow direction of the damping fluid relative to the third partition. When the damping fluid flows in the first direction H1, the first check valve 1341 opens and the second check valve 1342 closes; when the damping fluid flows in the second direction H2, the first check valve 1341 closes and the second check valve 1342 opens.

[0057] Multiple first check valves 1341 and second check valves 1342 can be provided. Optionally, the number of the first check valves 1341 is the same as that of the second check valves 1342.

[0058] In some embodiments, the partition assembly 130 further includes an elastic member 135, and the third partition 133 is connected to the first partition 131 through the elastic member 135.

[0059] It should be noted that when the first partition 131 slides, the elastic member 135 is also compressed or stretched to generate damping. In this way, the damping force provided by the shock absorber 100 when the telescopic range of the piston rod further exceeds the preset threshold can be increased. Among them, the third partition 133 can be fixed in the damping fluid chamber 142.

[0060] Optionally, the elastic member 135 is a spring. In some embodiments, a first thread groove (not shown) is provided on the wall surface of the first partition 131 facing the third partition 133, and a second thread groove (not shown) is provided on the wall surface of the third partition 133 facing the first partition 131. Two ends of the elastic member 135 are respectively screwed into the first thread groove and the second thread groove. Preferably, the first thread groove is provided in the middle of the first partition 131, and the second thread groove is provided in the middle of the third partition 133.

[0061] In some other embodiments, multiple sets of partition assemblies 130 may be provided. Each set of partition assemblies 130 includes a first air chamber 141, a damping liquid chamber 142, and a second air chamber 143. The multiple partition assemblies 130 are sequentially arranged at intervals along the telescopic direction of the piston rod 120 in the shock absorption cavity 140. In adjacent two sets of partition assemblies 130, the second air chamber 143 of the partition assembly 130 close to the piston rod 120 communicates with the first air chamber 141 of the partition assembly far from the piston rod 120. It should be noted that the preset thresholds corresponding to each partition assembly 130 are different, and the preset threshold corresponding to the partition assembly 130 closer to the piston rod 120 is smaller.

[0062] Exemplarily, referring to Figure 5 , Figure 5 is another cross-sectional view of the shock absorber provided by the embodiment of the present application. The shock absorber 100 includes a first partition assembly 130a and a second partition assembly 130b that are sequentially arranged at intervals along the telescopic direction of the piston rod 120. When the telescopic range of the piston rod 120 is less than the first threshold, the first partition assembly 130a is pressed to generate a first damping force. When the telescopic range of the piston rod 120 is less than the first threshold, both the first partition assembly 130a and the second partition assembly 130b are pressed to jointly generate a second damping force, where the second damping force is greater than the first damping force.

[0063] In some embodiments, a sealing ring (not shown) is clamped between the circumferential side wall of the piston rod 120 and the sleeve 110. An annular groove (not shown) is provided on the circumferential side wall of the piston rod 120 or the circumferential inner wall of the sleeve 110, and the sealing ring is clamped in the annular groove. Exemplarily, the annular groove is provided on the sleeve 110. Thus, when the piston rod 120 slides relative to the sleeve 110, the sealing ring maintains an interference fit with the piston rod 120 and the sleeve 110, thereby ensuring the sealed connection between the piston rod 120 and the sleeve 110.

[0064] The shock absorber 100 provided by the embodiment of the present application can adaptively provide damping forces of different magnitudes according to the amplitude of the connected device. When the device vibrates slightly, the first air chamber 141 acts alone to provide a smaller damping force for shock absorption. When the device vibrates greatly, the first air chamber 141 and the damping liquid chamber 142 act together to provide a greater damping force for shock absorption. In this way, the shock absorption and noise reduction effect of the shock absorber 100 can be improved.

[0065] The embodiment of the present application further provides a laundry treatment device, which may be a washing machine, a dryer, a washing and drying integrated machine, or others. Exemplarily, please refer to Figure 6 , Figure 6 is a schematic structural diagram of the laundry treatment device provided by the embodiment of the present application. The laundry treatment device 10 includes a housing 200, a laundry treatment tub 300, and the shock absorber 100 in any of the above embodiments.

[0066] Among them, the laundry treatment tub 300 is disposed in the housing 200, and the laundry treatment tub 300 is supported on the housing 200 by shock absorbers 100. Exemplarily, the end of the sleeve 110 is connected to the bottom of the laundry treatment tub 300, and the end of the piston rod 120 is connected to the base of the housing 200. The number of shock absorbers 100 can be multiple. Exemplarily, the laundry treatment device 10 has two shock absorbers 100, and the two shock absorbers 100 are respectively disposed on both sides of the laundry treatment tub 300 and symmetrically arranged.

[0067] The laundry treatment device 10 provided by the embodiment of the present application has a shock absorber 100 with an adjustable damping size. When the vibration generated during the operation of the laundry treatment device 10 is small, it acts alone through the first air chamber 141 to provide a small damping force for shock absorption. When the vibration generated during the operation of the laundry treatment device 10 is large, it acts together through the first air chamber 141 and the damping liquid chamber 142 to provide a larger damping force for shock absorption. In this way, the laundry treatment device 10 can obtain a good shock absorption and noise reduction effect, improving the user experience.

[0068] The shock absorber and the laundry treatment device provided by the embodiment of the present application are introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A shock absorber, characterized in that, Comprising: A sleeve; A piston rod, telescopically inserted into the sleeve, and forming a shock-absorbing cavity with the inner wall of the sleeve; A partition assembly, movably disposed in the shock-absorbing cavity, a first air cavity is formed between the partition assembly and the piston rod, a damping liquid cavity is provided in the partition assembly, the damping liquid cavity and the first air cavity are sealed from each other and are spaced apart in the telescopic direction of the piston rod, and the damping liquid cavity is filled with damping liquid; Wherein, when the telescopic range of the piston rod is less than or equal to a preset threshold, the first air cavity is compressed to generate damping, and when the telescopic range of the piston rod exceeds the preset threshold, the first air cavity is compressed and pushes the partition assembly, and the damping liquid flows in the damping liquid cavity to generate damping.

2. The shock absorber according to claim 1, characterized in that, The partition assembly includes a first partition and a second partition movably disposed in the shock-absorbing cavity; Wherein, the first air cavity is formed between the first partition and the piston rod, and the damping liquid cavity is formed between the first partition and the second partition.

3. The shock absorber according to claim 2, characterized in that, A sealed second air cavity is formed between the second partition and the bottom of the sleeve. When the damping liquid cavity is pushed, the second air cavity is compressed to generate damping.

4. The shock absorber according to claim 2, wherein The partition assembly further includes a third partition disposed between the first partition and the second partition, and a valve body is provided on the third partition; When the damping liquid cavity is pushed, the damping liquid flows through the valve body on both sides of the third partition.

5. The shock absorber according to claim 4, characterized in that, The valve body includes a first one-way valve and a second one-way valve, and the first one-way valve and the second one-way valve are arranged in opposite directions on the third partition.

6. The shock absorber according to claim 5, characterized in that, The number of the first one-way valve and the second one-way valve is the same.

7. The shock absorber according to claim 4, characterized in that, The partition assembly further includes an elastic member, and the third partition is connected to the first partition through the elastic member.

8. The shock absorber according to any one of claims 1-7, characterized in that, A sealing ring is clamped between the circumferential side wall of the piston rod and the sleeve.

9. The shock absorber according to claim 8, wherein, An annular groove is formed on the circumferential side wall of the piston rod or on the circumferential inner wall of the sleeve, and the sealing ring is clamped in the annular groove.

10. A laundry treating apparatus, characterized in that, Comprising: A housing; A laundry treatment tub, disposed in the housing; The shock absorber according to any one of claims 1-9, and the laundry treatment tub is supported on the housing by the shock absorber.

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