Damping structure and roller washing machine

Abstract

The invention relates to the technical field of household appliances, and particularly discloses a damping structure and a roller washing machine. The damping structure comprises a top balancing weight and a flexible connecting assembly. According to the damping structure, the top balancing weight is fixed to the outer side wall of the outer cylinder through the flexible connecting assembly, the flexible connecting assembly can make the top balancing weight move in the front-back direction, the up-down direction or the left-right direction relative to the outer cylinder, when the outer cylinder generates eccentric displacement towards one side, the top balancing weight is kept still in situ due to inertia, and therefore the damping effect is achieved. And the flexible connecting assembly generates a traction force opposite to the deviation direction of the outer drum on the outer drum and generates a traction limiting effect on the outer drum, so that partial displacement of the outer drum can be counteracted, especially when a small amount of clothes are dewatered, the vibration quantity during working of the roller washing machine is reduced, and then the noise during working of the roller washing machine is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a shock absorbing structure and a drum washing machine. Background Art

[0002] When the drum washing machine is working, the high-speed rotation of the inner drum causes the laundry to generate excessive centrifugal force locally, resulting in vibration, and the vibration caused by the inner drum will be transmitted to the outside of the drum washing machine through the outer drum and the casing. Therefore, the existing drum washing machine requires a gap between the inner drum and the outer drum. In order to prevent the vibration from being transmitted from the inner drum to the casing through the outer drum, a spring and a damper must be provided between the outer drum and the casing to buffer and damp the vibration of the outer drum, so as to ensure that the washing machine has sufficient space for shaking and displacement during high-speed rotation. At the same time, in order to reduce the vibration of the washing machine during operation and reduce the noise of the washing machine during operation, a counterweight is usually added to the outer drum of the washing machine.

[0003] In the prior art, counterweights are respectively arranged at the top and the front of the outer drum, and the counterweights are usually fixed on the outer drum in a static state. When a small amount of clothes is dehydrated, the eccentricity of the clothes in the inner drum is relatively large, and the vibration of the washing machine is also relatively large, thereby increasing the noise when the washing machine is working.

[0004] Therefore, there is an urgent need to provide a shock absorbing structure and a drum washing machine to solve the above technical problems. Summary of the invention

[0005] The object of the present invention is to provide a shock absorbing structure and a drum washing machine, which can effectively reduce the vibration amount of the drum washing machine during operation, thereby reducing the noise of the drum washing machine during operation.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] In one aspect, a shock absorbing structure is provided, which is arranged on the outer drum of a drum washing machine, and the shock absorbing structure comprises:

[0008] A top counterweight block is arranged on the top of the outer cylinder;

[0009] A flexible connection component, one end of which is connected to the top counterweight, and the other end of which is connected to the outer wall of the outer cylinder. The flexible connection component can enable the top counterweight to move relative to the outer cylinder in the front-to-back direction, the up-down direction, or the left-to-right direction.

[0010] As an optional technical solution to the above-mentioned shock-absorbing structure, the flexible connection assembly includes a main spring, one end of which is connected to the middle part of the top counterweight block close to the outer tube, and the other end of the main spring is connected to the outer wall of the outer tube.

[0011] As an optional technical solution to the above-mentioned shock-absorbing structure, a mounting groove is recessed on a side of the top counterweight block close to the outer tube, a first mounting boss is convexly provided at the bottom of the mounting groove, a second mounting boss is convexly provided on the outer wall of the outer tube, one end of the main spring is sleeved on the first mounting boss, and the other end of the main spring is sleeved on the second mounting boss.

[0012] As an optional technical solution to the above-mentioned shock-absorbing structure, the flexible connection assembly also includes an auxiliary spring, and an auxiliary spring is respectively provided at at least three positions of the top counterweight block in the circumferential direction, one end of the auxiliary spring is connected to the top counterweight block, and the other end of the auxiliary spring is connected to the outer wall of the outer tube.

[0013] As an optional technical solution to the above-mentioned shock-absorbing structure, a mounting seat is convexly provided on the outer wall of the outer tube, and the mounting seat is arranged corresponding to the auxiliary spring. One end of the auxiliary spring is connected to the mounting seat, and the other end of the auxiliary spring is connected to the top counterweight.

[0014] As an optional technical solution of the above-mentioned shock-absorbing structure, the top counterweight block is provided with a receiving cavity, the receiving cavity is used to place liquid, and the top counterweight block is provided with a liquid injection port connected with the receiving cavity.

[0015] As an optional technical solution to the above-mentioned shock-absorbing structure, the liquid injection port is arranged on a side of the top counterweight away from the outer tube, one end of the liquid injection port is connected to the accommodating cavity, and the other end of the liquid injection port is screwed with a sealing cover.

[0016] As an optional technical solution for the above-mentioned shock-absorbing structure, a sink groove is concavely provided on the side of the top counterweight away from the outer tube, a column is convexly provided at the bottom of the sink groove, the liquid injection port is provided on the column, the sealing cover is screwed to the column, and the sealing cover is placed in the sink groove.

[0017] As an optional technical solution of the above-mentioned shock-absorbing structure, a convex seat is convexly provided in the middle of the bottom of the accommodating cavity, and the liquid injection port is arranged corresponding to the convex seat.

[0018] As an optional technical solution to the above-mentioned shock-absorbing structure, a boss is protruding from the middle of the bottom of the accommodating chamber, the liquid injection port is arranged opposite to the boss, a partition is provided in the liquid injection port, and the partition extends from the liquid injection port to the top of the boss and the bottom of the accommodating chamber to separate the accommodating chamber into a first accommodating chamber and a second accommodating chamber that are not connected to each other, and the liquid injection port is respectively connected to the first accommodating chamber and the second accommodating chamber.

[0019] On the other hand, a drum washing machine is provided, comprising a housing, an outer drum and the shock absorbing structure described in any one of the above, wherein the outer drum is arranged in the housing.

[0020] Beneficial effects of the present invention:

[0021] The top counterweight of the shock-absorbing structure provided by the present invention is fixed to the outer side wall of the outer drum through a flexible connection component. The flexible connection component can enable the top counterweight to move relative to the outer drum in the front-to-back direction, the up-down direction or the left-to-right direction. When the outer drum generates an eccentric displacement toward one side, the top counterweight remains stationary due to inertia, and the flexible connection component generates a pulling force on the outer drum that is opposite to the direction in which the outer drum is offset, thereby generating a pulling and limiting effect on the outer drum, thereby offsetting part of the displacement of the outer drum, especially when dehydrating a small amount of clothes, reducing the amount of vibration of the drum washing machine during operation, thereby reducing the noise of the drum washing machine during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a partial structural schematic diagram of a drum washing machine provided by an embodiment of the present invention;

[0023] Figure 2 is a schematic diagram of a first structure of a shock absorbing structure provided by an embodiment of the present invention;

[0024] Figure 3 It is a schematic diagram of the second structure of the shock absorbing structure provided in an embodiment of the present invention.

[0025] In the figure:

[0026] 1. Top weight block; 2. Flexible connection assembly; 3. Hook;

[0027] 11. mounting groove; 12. first mounting boss; 13. accommodating cavity; 14. liquid injection port; 15. sealing cover; 16. sink; 17. column; 18. boss; 19. partition;

[0028] 21. main spring; 22. second mounting boss; 23. auxiliary spring; 24. mounting seat;

[0029] 100, outer tube; 200, box body; 300, inner tube; 400, shock absorber; 500, damper. DETAILED DESCRIPTION

[0030] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] like Figure 1 As shown, this embodiment provides a drum washing machine, which includes a housing 200 , an outer drum 100 is arranged in the housing 200 , an inner drum 300 is arranged in the outer drum 100 , and the inner drum 300 is arranged to roll relative to the outer drum 100 .

[0034] When the drum washing machine is working, the vibration of the inner drum 300 is transmitted to the outer drum 100, and the vibration of the outer drum 100 is transmitted to the housing 200. In order to reduce the vibration of the outer drum 100 transmitted to the housing 200, the outer drum 100 is connected to the housing 200 through the shock absorber 400 and the damper 500, and the outer drum 100 is suspended and supported in the housing 200. Specifically, the upper part of the outer drum 100 is connected to the inside of the housing 200 through the shock absorber 400, and the lower part of the outer drum 100 is supported in the housing 200 through the damper 500. The shock absorber 400 plays a role in allowing the outer drum 100 to move when the drum washing machine is working, and the damper 500 can slowly reset the displaced outer drum 100. The specific connection structure of the shock absorber 400 and the damper 500 with the outer drum 100 is a prior art, and will not be described in detail here.

[0035] like Figure 1 and Figure 2 As shown, in order to reduce the vibration of the drum washing machine during operation and reduce the noise of the drum washing machine during operation, a counterweight is usually added to the outer drum 100 of the drum washing machine. In this embodiment, a shock absorbing structure is provided on the outer drum 100 to reduce the vibration of the outer drum 100, thereby reducing the noise of the drum washing machine during operation.

[0036] Specifically, the shock absorbing structure provided in this embodiment includes a top counterweight 1 and a flexible connection component 2, the top counterweight 1 is arranged at the top of the outer cylinder 100, one end of the flexible connection component 2 is connected to the top counterweight 1, and the other end of the flexible connection component 2 is connected to the outer wall of the outer cylinder 100, and the flexible connection component 2 can enable the top counterweight 1 to move relative to the outer cylinder 100 in the front-to-back direction, the up-down direction, or the left-to-right direction.

[0037] The top counterweight 1 can move relative to the outer drum 100 in the front-to-back direction, the up-down direction or the left-to-right direction through the flexible connection component 2. When the outer drum 100 produces an eccentric displacement toward one side, the top counterweight 1 remains stationary due to inertia, and the flexible connection component 2 produces a pulling force on the outer drum 100 in the opposite direction of the displacement of the outer drum 100, which has a pulling and limiting effect on the outer drum 100, thereby offsetting part of the displacement of the outer drum 100, especially when dehydrating a small amount of clothes, reducing the vibration of the drum washing machine during operation, thereby reducing the noise of the drum washing machine during operation.

[0038] In some embodiments, the flexible connection assembly 2 includes a main spring 21, one end of which is connected to the middle of the top counterweight 1 near the outer cylinder 100, and the other end of the main spring 21 is connected to the outer wall of the outer cylinder 100. The main spring 21 connects the top counterweight 1 and the outer cylinder 100, and the elasticity of the main spring 21 enables the top counterweight 1 to move relative to the outer cylinder 100 in the up-down direction, left-right direction, and front-back direction. The main spring 21 bears the pressure of the top counterweight 1, and the elastic force of the main spring 21 is determined according to factors such as the weight of the top counterweight 1 and the maximum weight of the clothes to be loaded, so as to minimize the vibration of the outer cylinder 100 and ensure that the top counterweight 1 can be displaced relative to the outer cylinder 100. When the outer cylinder 100 is displaced in the up-down direction, since the space between the outer cylinder 100 and the box body 200 is large enough, the expansion and contraction amount of the main spring 21 can be selected to be larger without affecting the main spring 21 supporting the top counterweight 1.

[0039] A mounting groove 11 is concavely provided on one side of the top counterweight 1 close to the outer drum 100, a first mounting boss 12 is convexly provided at the bottom of the mounting groove 11, a second mounting boss 22 is convexly provided on the outer wall of the outer drum 100, one end of the main spring 21 is sleeved on the first mounting boss 12, and the other end of the main spring 21 is sleeved on the second mounting boss 22. The first mounting boss 12 and the second mounting boss 22 provide support for the installation of the main spring 21, and facilitate the installation and fixing of the main spring 21. Part of the main spring 21 is placed in the mounting groove 11, and the mounting groove 11 provides a certain guiding and supporting function for the main spring 21, so as to prevent the top counterweight 1 from being excessively tilted, and also prevent the main spring 21 from being fatigued and losing its elasticity when the drum washing machine works for a long time, so as to prevent the top counterweight 1 from being unable to play the role of pulling and limiting the outer drum 100.

[0040] The cross-sectional shape of the mounting groove 11 is trapezoidal, that is, the inner diameter of the mounting groove 11 gradually decreases from the groove mouth to the groove bottom, the outer diameter of the main spring 21 is smaller than the minimum inner diameter of the mounting groove 11, and the portion of the mounting groove 11 close to the groove bottom can limit the main spring 21, and the portion of the mounting groove 11 close to the groove mouth can provide sufficient space for the elastic deformation of the main spring 21, so that the top counterweight 1 can play the role of pulling and limiting the outer cylinder 100, and can also prevent the main spring 21 from excessive deformation, fatigue, and loss of elasticity.

[0041] The cross-sectional shape of the first mounting boss 12 and the second mounting boss 22 is a trapezoidal shape, and the outer diameter of the first mounting boss 12 and the second mounting boss 22 gradually increases from one end close to the end of the main spring 21 to the other end, so as to facilitate the socketing of the main spring 21, and the portion with the larger outer diameter matches the inner diameter of the main spring 21, so as to play a role in positioning and installing the main spring 21.

[0042] In this embodiment, one main spring 21 is provided. In other embodiments, multiple main springs 21 may be provided, which is not specifically limited here, but the number and position of the main springs 21 cannot affect the displacement of the top counterweight 1 at different angles.

[0043] In some embodiments, the flexible connection assembly 2 further includes an auxiliary spring 23, and an auxiliary spring 23 is respectively provided at at least three positions around the top counterweight 1, one end of the auxiliary spring 23 is connected to the top counterweight 1, and the other end of the auxiliary spring 23 is connected to the outer wall of the outer cylinder 100. The auxiliary spring 23 is provided to prevent the top counterweight 1 from tipping over, and plays a certain supporting role. An auxiliary spring 23 is respectively provided at at least three positions around the top counterweight 1, so that the top counterweight 1 is evenly stressed, and tipping over will not occur in any direction, so as to prevent the main spring 21 from fatigue and losing its function.

[0044] The top counterweight 1 is rectangular in shape, and an auxiliary spring 23 is disposed at each of the four corners of the top counterweight 1, so that the top counterweight 1 is evenly stressed and will not tip over in any direction. In some other embodiments, five, six or more auxiliary springs 23 are evenly spaced around the top counterweight 1, which is not specifically limited here.

[0045] Optionally, a mounting seat 24 is convexly provided on the outer wall of the outer tube 100, and the mounting seat 24 is arranged corresponding to the auxiliary spring 23, one end of the auxiliary spring 23 is connected to the mounting seat 24, and the other end of the auxiliary spring 23 is connected to the top counterweight 1. The mounting seat 24 is arranged to facilitate fixing the auxiliary spring 23.

[0046] A hook is provided at one end of the auxiliary spring 23, a collar is provided at the other end of the auxiliary spring 23, a hole is provided on the mounting seat 24, the hook is hooked on the mounting seat 24, a hook 3 is provided on the top counterweight 1, and the collar of the auxiliary spring 23 is hung on the hook 3. This structure is convenient for installing the auxiliary spring 23, and has a simple structure and low cost. During final assembly production, the auxiliary spring 23 is convenient to install.

[0047] In the prior art, although the setting of a counterweight can reduce the vibration, it will increase the weight of the drum washing machine, making it inconvenient to carry the drum washing machine. With the increase of the washing capacity of the drum washing machine and the increase of the dehydration speed, it is necessary to increase the weight of the counterweight to reduce the vibration of the drum washing machine during operation. It can be seen that the reduction of the overall weight of the drum washing machine and the reduction of the vibration of the drum washing machine during operation are not compatible. Based on this, a technical solution to the above problem is proposed.

[0048] Specifically, continue to refer to Figure 2 As shown, a receiving cavity 13 is provided on the top counterweight 1, and the receiving cavity 13 is used to place liquid. The top counterweight 1 is provided with a liquid injection port 14 connected with the receiving cavity 13. Liquid can be placed in the receiving cavity 13. When transporting or moving the drum washing machine, the receiving cavity 13 is left empty, thereby reducing the weight of the drum washing machine and facilitating transportation or movement. After fixing the position of the drum washing machine, liquid is injected into the receiving cavity 13 to increase the weight of the top counterweight 1, so that the top counterweight 1 with a small weight has the same use effect as the top counterweight 1 with a large weight. After the liquid is injected, its weight is equal to the weight of the top counterweight 1 with a large weight, thereby reducing the weight of the drum washing machine and facilitating movement and transportation. Or, under the premise that the top counterweight 1 has the same weight, liquid is injected into the top counterweight 1 with the receiving cavity 13, thereby increasing the weight of the top counterweight 1. On this basis, under the premise that the same shock absorption effect is achieved, the washing capacity of the drum washing machine can be increased. The liquid in the accommodating chamber 13 can move in the accommodating chamber 13 , and the liquid restrains the top counterweight 1 from moving, and the top counterweight 1 restrains the outer cylinder 100 from moving, that is, the top counterweight 1 pulls the outer cylinder 100 in the direction opposite to the movement of the outer cylinder 100 , further reducing the vibration of the outer cylinder 100 .

[0049] The liquid may be water. After the drum washing machine is transported and placed in place, water is injected into the accommodating cavity 13 to increase the weight of the top counterweight 1. This is convenient for obtaining materials and has low cost.

[0050] Optionally, a liquid injection port 14 is provided on a side of the top counterweight 1 away from the outer drum 100, one end of the liquid injection port 14 is connected to the accommodating chamber 13, and a sealing cap 15 is screwed to the other end of the liquid injection port 14. After the liquid is injected into the accommodating chamber 13, the liquid injection port 14 is sealed by the sealing cap 15, which can prevent the liquid in the accommodating chamber 13 from overflowing due to vibration when the drum washing machine is working. The sealing cap 15 is threadedly connected to the liquid injection port 14, which can also play a role of sufficient sealing.

[0051] The liquid injection port 14 is arranged on the side of the top counterweight 1 away from the outer cylinder 100, that is, the liquid injection port 14 is arranged on the top of the top counterweight 1, so as to inject liquid into the accommodating chamber 13. A recessed groove 16 is arranged on the side of the top counterweight 1 away from the outer cylinder 100, and a column 17 is convexly arranged at the bottom of the recessed groove 16. The liquid injection port 14 is arranged on the column 17, and the sealing cover 15 is screwed to the column 17, and the sealing cover 15 is placed in the recessed groove 16. The recessed groove 16 provides a accommodating space for the sealing cover 15, so that the sealing cover 15 is not exposed, the overall height of the top counterweight 1 is not increased, and the space between the outer cylinder 100 and the box body 200 is not occupied. The column 17 is provided to facilitate the installation of the sealing cover 15.

[0052] In some embodiments, a convex seat 18 is convexly provided in the middle of the bottom of the accommodating chamber 13, and the liquid injection port 14 is arranged corresponding to the convex seat 18. In the process of injecting liquid into the accommodating chamber 13 through the liquid injection port 14, the height of the convex seat 18 can be used as a reference. After the liquid submerges the top of the convex seat 18, the injection of liquid is stopped, and a certain space is reserved in the accommodating chamber 13 to avoid excessive liquid in the accommodating chamber 13 affecting the liquid flow, thereby ensuring the shock absorption effect of the top counterweight 1.

[0053] The above-mentioned mounting groove 11 for accommodating the main spring 21 is arranged at a position corresponding to the boss 18 , that is, the boss 18 provides a base for the setting of the mounting groove 11 , and the mounting groove 11 is recessed from one side of the top counterweight 1 to the boss 18 .

[0054] In some other embodiments, such as Figure 3 As shown, a convex seat 18 is convexly provided in the middle of the bottom of the accommodating chamber 13, and the injection port 14 is arranged corresponding to the convex seat 18. In the process of injecting liquid into the accommodating chamber 13 through the injection port 14, the height of the convex seat 18 can be used as a reference. After the liquid submerges the top of the convex seat 18, the injection of liquid is stopped, and a certain space is reserved in the accommodating chamber 13 to avoid excessive liquid in the accommodating chamber 13 affecting the liquid flow, thereby ensuring the shock absorption effect of the top counterweight 1. A partition 19 is provided in the injection port 14, and the partition 19 extends from the injection port 14 to the top of the convex seat 18 and the bottom of the accommodating chamber 13 to separate the accommodating chamber 13 into a first accommodating chamber and a second accommodating chamber that are not connected to each other. The injection port 14 is connected to the first accommodating chamber and the second accommodating chamber respectively. Liquid can be injected into the two cavities at the same time through one injection port 14, and the liquid levels of the liquids in the two cavities can be seen through the injection port 14. The accommodating chamber 13 is divided into a first accommodating chamber and a second accommodating chamber which are not connected to each other. The liquid in each cavity flows in its own cavity, which reduces the noise caused by the liquid flow colliding with the side wall of the cavity when the drum washing machine is working, thereby reducing the noise when the drum washing machine is working.

[0055] In other embodiments, a liquid level sensor may be provided in the accommodating cavity 13 for sensing the liquid level in the accommodating cavity 13. When the liquid level sensor detects that the liquid in the accommodating cavity 13 reaches a preset liquid level value, the drum washing machine sends a signal to inform the user to stop injecting liquid.

[0056] In some embodiments, the shock-absorbing structure also includes a side counterweight block arranged on the front side of the outer cylinder 100. The structure of the side counterweight block is the same as that of the top counterweight block 1. The connection structure between the side counterweight block and the outer cylinder 100 is the same as the connection structure between the top counterweight block 1 and the outer cylinder 100. Please refer to the above for details and no detailed description will be given here.

[0057] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A shock absorbing structure, arranged on the outer drum (100) of a drum washing machine, characterized in that: The shock absorbing structure comprises: A top counterweight (1) is arranged on the top of the outer cylinder (100); A flexible connection component (2), one end of which is connected to the top counterweight (1), and the other end of which is connected to the outer wall of the outer cylinder (100), and the flexible connection component (2) can enable the top counterweight (1) to move relative to the outer cylinder (100) in the front-to-back direction, the up-down direction, or the left-to-right direction.

2. The shock absorbing structure according to claim 1, characterized in that: The flexible connection assembly (2) comprises a main spring (21), one end of the main spring (21) is connected to the middle of the top counterweight (1) on a side close to the outer cylinder (100), and the other end of the main spring (21) is connected to the outer side wall of the outer cylinder (100).

3. The shock absorbing structure according to claim 2, characterized in that: A mounting groove (11) is recessed on one side of the top counterweight (1) close to the outer tube (100); a first mounting boss (12) is protruding from the bottom of the mounting groove (11); a second mounting boss (22) is protruding from the outer wall of the outer tube (100); one end of the main spring (21) is sleeved on the first mounting boss (12), and the other end of the main spring (21) is sleeved on the second mounting boss (22).

4. The shock absorbing structure according to claim 2, characterized in that: The flexible connection assembly (2) further comprises an auxiliary spring (23), wherein one auxiliary spring (23) is respectively arranged at at least three positions in the circumference of the top counterweight (1), one end of the auxiliary spring (23) is connected to the top counterweight (1), and the other end of the auxiliary spring (23) is connected to the outer wall of the outer tube (100).

5. The shock absorbing structure according to claim 4, characterized in that: A mounting seat (24) is convexly provided on the outer wall of the outer cylinder (100), and the mounting seat (24) is arranged corresponding to the auxiliary spring (23), one end of the auxiliary spring (23) is connected to the mounting seat (24), and the other end of the auxiliary spring (23) is connected to the top counterweight (1).

6. The shock absorbing structure according to claim 1, characterized in that: The top counterweight (1) is provided with a receiving cavity (13), the receiving cavity (13) being used to place liquid, and the top counterweight (1) is provided with a liquid injection port (14) communicating with the receiving cavity (13).

7. The shock absorbing structure according to claim 6, characterized in that: The liquid injection port (14) is arranged on a side of the top counterweight (1) away from the outer cylinder (100), one end of the liquid injection port (14) is connected to the accommodating cavity (13), and the other end of the liquid injection port (14) is screwed with a sealing cover (15).

8. The shock absorbing structure according to claim 7, characterized in that: A recessed groove (16) is provided on a side of the top counterweight (1) away from the outer cylinder (100); a column (17) is provided on the bottom of the recessed groove (16); the liquid injection port (14) is provided on the column (17); the sealing cover (15) is screwed to the column (17), and the sealing cover (15) is placed in the recessed groove (16).

9. The shock absorbing structure according to claim 6, characterized in that: A convex seat (18) is convexly provided in the middle of the bottom of the accommodating cavity (13), and the liquid injection port (14) is arranged corresponding to the convex seat (18).

10. The shock absorbing structure according to claim 6, characterized in that: A convex seat (18) is protrudingly provided in the middle of the bottom of the accommodating chamber (13); the liquid injection port (14) is arranged opposite to the convex seat (18); a partition plate (19) is provided in the liquid injection port (14); the partition plate (19) extends from the liquid injection port (14) to the top of the convex seat (18) and the bottom of the accommodating chamber (13) so as to separate the accommodating chamber (13) into a first accommodating chamber and a second accommodating chamber which are not connected to each other; the liquid injection port (14) is respectively connected to the first accommodating chamber and the second accommodating chamber.

11. A drum washing machine, characterized in that: It comprises a box body (200), an outer cylinder (100) and the shock absorbing structure according to any one of claims 1 to 10, wherein the outer cylinder (100) is arranged in the box body (200).

Images