Hanger rod assembly and washing machine

Abstract

The invention provides a suspender assembly and a washing machine, the suspender assembly is applied to the washing machine, and the suspender assembly comprises a rod piece; the rod bottom support is fixedly connected to one end of the rod piece; the suspender cylinder is arranged on the rod piece in a sleeving manner; the barrel bottom support is fixedly connected to one end of the suspender barrel, and the suspender barrel and the barrel bottom support jointly define a containing space; the first damping spring and the second damping spring are both arranged in the containing space and located on the two sides of the rod bottom support in the length direction of the rod piece correspondingly; one end of the first damping spring is connected to the rod bottom support, and the other end is connected to the suspender cylinder; one end of the second damper spring is connected to the rod bottom support, and the other end is connected to the cylinder bottom support. The suspender assembly can improve reliability.

Description

Technical Field

[0001] The present invention relates to the technical field of laundry equipment, and in particular to a suspension rod assembly and a washing machine. Background Art

[0002] The traditional washing machine boom structure has reliability defects, and the core problem lies in the wear between the rubber friction block and the boom sleeve.

[0003] When the washing machine boom is in operation, the spring forces the boom support and rubber friction block to reciprocate within a specific range. During this motion, friction inevitably arises between the rubber friction block and the boom sleeve. This friction acts inversely on the boom's motion, providing the necessary damping to maintain stability during operation.

[0004] However, after a washing machine has been running for a long time, the rubber friction block and the boom sleeve will gradually become damaged due to continuous friction. This wear is irreversible and will intensify with increasing use. When the wear reaches a certain level, the rubber friction block loses its function and is unable to provide reverse resistance to the boom. The boom movement loses effective restraint and cushioning, and the boom structure cannot operate normally. During the dehydration phase, the washing machine barrel is prone to imbalance and instability, colliding with the cabinet, generating strong vibration and noise, affecting the user experience, and may also damage the overall structure of the washing machine and even cause safety accidents. Therefore, improving the boom structure of the washing machine and enhancing its reliability to reduce vibration and noise is an urgent problem that needs to be solved. Summary of the Invention

[0005] The embodiments of the present application provide a suspension rod assembly and a washing machine, which can improve reliability.

[0006] An embodiment of the present application provides a suspension rod assembly for use in a washing machine, the suspension rod assembly comprising:

[0007] rods;

[0008] A rod base support, the rod base support being fixedly connected to one end of the rod member;

[0009] A boom tube, the boom tube being sleeved on the rod member;

[0010] A tube base support, the tube base support is fixedly connected to one end of the boom tube, and the boom tube and the tube base support jointly define an accommodating space;

[0011] A first shock-absorbing spring and a second shock-absorbing spring, the first shock-absorbing spring and the second shock-absorbing spring are both arranged in the accommodating space and are respectively located on both sides of the rod base support along the length direction of the rod member; one end of the first shock-absorbing spring is connected to the rod base support, and the other end is connected to the suspension rod tube; one end of the second shock-absorbing spring is connected to the rod base support, and the other end is connected to the tube base support.

[0012] In some embodiments, the boom assembly further comprises a friction block fixed on the boom base, wherein the outer periphery of the friction block is in sliding contact with the inner side wall of the boom tube.

[0013] In some embodiments, the friction block is sleeved on the rod base.

[0014] In some embodiments, the rod base includes an annular flange extending radially toward its circumference, and one end of the second damping spring is sleeved on and abuts against the annular flange.

[0015] In some embodiments, a positioning groove is provided on the annular flange, and the second damping spring is clamped in the positioning groove.

[0016] In some embodiments, a wire diameter of the first damping spring is smaller than or equal to a wire diameter of the second damping spring.

[0017] In some embodiments, the first damping spring and the second damping spring are coaxially arranged.

[0018] In some embodiments, the first damping spring is sleeved on the rod.

[0019] In some embodiments, the boom tube includes a tube top, which encloses the accommodating space and constitutes the inner end portion of the boom tube, the inner end portion is arranged in the accommodating space, and a through hole is provided on the inner end portion for the rod to pass through; one end of the first shock-absorbing spring is sleeved on the inner end portion.

[0020] The present application also provides a washing machine, comprising:

[0021] Box;

[0022] a barrel body, the barrel body being arranged in the box body;

[0023] A boom assembly is the above-mentioned boom assembly, one end of the boom assembly is connected to the box body, and the other end is connected to the barrel body.

[0024] The embodiments of the present application provide a suspension rod assembly and a washing machine, wherein the suspension rod assembly includes a rod, a rod base, a suspension rod drum, a drum base, a first damping spring and a second damping spring. The first damping spring and the second damping spring are both arranged in a receiving space and are respectively located on both sides of the rod base along the length direction of the rod. One end of the first damping spring is connected to the rod base, and the other end is connected to the suspension rod drum; one end of the second damping spring is connected to the rod base, and the other end is connected to the drum base. When the washing machine equipped with the suspension rod assembly is in operation, if it is subjected to external force (such as the eccentric load generated during the dehydration process), the rod and the rod base fixedly connected thereto will vibrate. At this time, the rod and the rod base can reciprocate within a set specific range. Through this reciprocating motion, the imbalance caused by the failure of the friction block can be effectively avoided, ensuring the balance of the washing machine during operation. Through the elastic deformation of the vibration-damping spring, the vibration energy is converted into the elastic potential energy of the spring, which can effectively absorb and consume the vibration energy, thereby maintaining the stability of the washing machine during operation, reducing noise, component wear and other problems caused by vibration, and improving the overall performance and service life of the washing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0026] Figure 1 A schematic structural diagram of the boom assembly provided in an embodiment of the present application.

[0027] Figure 2 A schematic diagram of the reciprocating motion of the boom assembly provided in an embodiment of the present application.

[0028] Figure 3 for Figure 1 An enlarged schematic diagram of part A.

[0029] Figure 4 This is a schematic structural diagram of a washing machine provided in an embodiment of the present application. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0031] The embodiments of the present application provide a suspension rod assembly and a washing machine, which can improve reliability. Detailed description will be given below with reference to the accompanying drawings.

[0032] See also Figure 1 , Figure 1 A schematic structural diagram of the boom assembly provided in an embodiment of the present application.

[0033] The present invention also provides a suspension rod assembly 10 for use in a washing machine. The suspension rod assembly 10 is used to support and reduce vibration during operation of the washing machine, thereby maintaining the balance and stability of the washing machine.

[0034] The suspension rod assembly 10 includes a rod 11, a rod base 12, a suspension rod tube 13, a tube base 14, a first damping spring 16, and a second damping spring 17. The rod base 12 is fixedly connected to one end of the rod 11. The rod 11, as the main load-bearing component of the suspension rod assembly 10, is usually made of a metal material with a certain strength and rigidity. Its shape is generally a slender rod-like structure, and the length is determined according to the specific design and requirements of the washing machine. The rod base 12 is firmly connected to one end of the rod 11 through a fixed connection method such as welding and screw connection. The rod base 12 not only serves as one of the connection points for the damping spring, but also plays an important role in supporting and transmitting force during the reciprocating motion of the suspension rod assembly 10.

[0035] The boom tube 13 is sleeved on the rod 11, and the tube base 14 is fixedly connected to one end of the boom tube 13. The boom tube 13 and the tube base 14 jointly define a accommodating space 15. The boom tube 13 is a cylindrical structure, and its inner diameter is slightly larger than the outer diameter of the rod 11, so that it can be smoothly sleeved on the rod 11. One end of the boom tube 13 is fixedly connected to the tube base 14, and the tube base 14 and the boom tube 13 can be manufactured in an integral molding manner, or can be connected together by welding or the like. The boom tube 13 and the tube base 14 jointly define a accommodating space 15, which provides an installation and working environment for the shock-absorbing spring, so that the first shock-absorbing spring 16 and the second shock-absorbing spring 17 can normally play a shock-absorbing role therein.

[0036] Both the first and second damping springs 16, 17 are disposed within the accommodation space 15 and are located on either side of the rod support 12 along the length of the rod 11. One end of the first damping spring 16 is connected to the rod support 12, and the other end is connected to the boom tube 13. One end of the second damping spring 17 is connected to the rod support 12, and the other end is connected to the tube support 14. This connection allows the damping springs to absorb and dissipate vibration energy through elastic deformation when the rod 11 and rod support 12 vibrate.

[0037] When the washing machine equipped with the suspension rod assembly 10 is in operation, if it is subjected to external forces (such as the eccentric load generated during the dehydration process), the rod 11 and the rod base support 12 fixedly connected thereto will vibrate. At this time, the rod 11 and the rod base support 12 can reciprocate within a set specific range. Through this reciprocating motion, the imbalance caused by the failure of the friction block 18 can be effectively avoided, ensuring the balance of the washing machine during operation. Through the elastic deformation of the shock-absorbing spring, the vibration energy is converted into the elastic potential energy of the spring, which can effectively absorb and consume the vibration energy, thereby maintaining the stability of the washing machine during operation, reducing noise, component wear and other problems caused by vibration, and improving the overall performance and service life of the washing machine.

[0038] See also Figure 2 , Figure 2 Schematic diagram of the boom assembly achieving reciprocating motion provided in an embodiment of the present application. In some cases, the force analysis of the first spring and the second spring can be as follows: when the rod 11, the rod base support 12, and the boom tube 13 are relatively stationary, the first spring is stretched and the second spring is compressed; under the action of an external force, when the rod 11 and the rod base support 12 move toward the boom tube 13, the first spring is stretched and the second spring is compressed. At this time, the rod base support 12 is subjected to an upward force to move upward, until the rod 11 and the rod base support 12 move away from the boom tube 13. At this time, the first spring is compressed and the second spring is stretched. At this time, the rod base support 12 is subjected to a downward force to move downward, thereby achieving reciprocating motion.

[0039] In the initial state of boom assembly 10, that is, when rod 11, rod support 12, and boom tube 13 are relatively stationary, factors such as the initial preload of the damping spring will affect the spring's deformation state. Specifically, the first spring may be in tension or compression, depending on the design parameters of boom assembly 10 and the preload setting during assembly; while the second spring is in compression.

[0040] At this time, a force analysis of the rod base support 12 shows that the gravity of the rod base support 12 is downward, the first spring produces an upward pulling force or a downward thrust on the rod base support 12, and the second spring produces an upward thrust on the rod base support 12. The action forces of the two springs and the gravity of the rod base support 12 are balanced with each other, so that the suspension rod assembly 10 remains stable in the initial state and no unnecessary movement occurs.

[0041] When the washing machine is subjected to an external force, such as the eccentric load generated during the spin cycle, causing rod 11 and rod base support 12 to move away from drum base support 14, the first spring is compressed, and the second spring is also compressed. At this point, the first and second springs jointly apply a downward force to rod base support 12, thereby driving rod 11 downward. As rod 11 and rod base support 12 move downward, the first spring is gradually stretched and the second spring is gradually compressed. At this point, the tension of the first spring on rod base support 12 decreases, while the thrust of the second spring on rod base support 12 increases. Rod base support 12 is subjected to an upward force, thereby driving rod 11 upward.

[0042] Through this reciprocating motion, the suspension rod assembly 10 can effectively absorb and dissipate vibration energy, achieving vibration reduction and balancing functions for the washing machine. This force analysis and motion process is repeated continuously during actual washing machine operation, ensuring that the washing machine can maintain stable operation under various operating conditions.

[0043] See also Figure 3 , Figure 3 for Figure 1 An enlarged schematic diagram of a portion A of the boom assembly 10 is shown. The boom assembly 10 also includes a friction block 18, which is made of a material with a certain coefficient of friction and wear resistance, such as a composite material such as rubber or polyurethane. Friction block 18 is fixedly mounted on the rod 11 and generates friction through sliding contact with the inner wall of the boom tube 13.

[0044] The friction block 18 is fixed to the rod base 12, and the outer periphery of the friction block 18 is in sliding contact with the inner wall of the boom tube 13. When the washing machine is in operation, due to various factors (such as uneven distribution of clothes, centrifugal force during dehydration, etc.), the rod 11 and the rod base 12 will vibrate and move relative to the boom tube 13. At this time, the outer periphery of the friction block 18 fixed to the rod 11 and the rod base 12 will be in sliding contact with the inner wall of the boom tube 13. During the sliding contact process, according to the basic principle of friction, friction will be generated between the two, and part of the vibration energy will be converted into heat energy and dissipated.

[0045] The friction between friction block 18 and the inner wall of boom tube 13 automatically adjusts based on the changing motion state. If rod 11 and base 12 deviate to one side, the friction increases, hindering further deflection and gradually returning the machine to its equilibrium position through the interaction of these forces. This automatic balancing function is crucial for the stable operation of the washing machine, effectively preventing problems such as shaking, increased noise, and even damage caused by imbalance.

[0046] The friction block 18 is mounted on the rod base 12. The friction block 18 and the rod base 12 can be fixed by an interference fit, that is, the size difference between the friction block 18 and the rod 11 is utilized to make the friction block 18 tightly fit on the rod base 12, further enhancing the reliability and stability of the installation of the friction block 18, ensuring that the friction block 18 can always remain in the correct position during the operation of the washing machine and play its due role.

[0047] An annular flange 111 is provided at one end of the rod 11 near the rod base 12. This flange 111 extends radially around the circumference of the rod 11, increasing the local strength of the rod 11 at that location and, more importantly, providing a specific location for the installation of the second damping spring 17. One end of the second damping spring 17 is sleeved onto and abuts against the annular flange 111.

[0048] Rod base support 12 is sleeved onto rod 11 and abuts against the side of annular flange 111 facing away from drum base support 14. This allows second damping spring 17 to effectively transmit force to rod 11 when subjected to external forces, while also buffering and dissipating vibration energy through its own elastic deformation. For example, during the spin cycle of a washing machine, the eccentric distribution of clothing generates significant centrifugal force, causing rod 11 to vibrate. At this point, second damping spring 17, in conjunction with annular flange 111, can quickly respond and elastically deform, absorbing some of the vibration energy and reducing the amplitude and frequency of the vibration.

[0049] The annular flange 111 is provided with a positioning groove, into which the second damping spring 17 is snapped. The positioning groove is a groove of a predetermined depth and shape machined into the surface of the annular flange 111, into which the end of the second damping spring 17 is snapped. This snap-fitting arrangement utilizes the restraining effect of the sidewalls of the positioning groove on the second damping spring 17, ensuring that the second damping spring 17 remains in its correct position even when subjected to vibration or external forces, preventing shaking or displacement, thereby ensuring the stability and reliability of the boom assembly 10.

[0050] The wire diameter of the first damping spring 16 is equal to or smaller than that of the second damping spring 17. Wire diameter refers to the diameter of the spring wire and directly affects the spring's stiffness and elastic deformation capacity. Because the second damping spring 17 has a larger wire diameter and a relatively larger cross-sectional area, it possesses greater stiffness and load-bearing capacity. When subjected to the same external force, the second damping spring 17 exhibits a relatively smaller elastic deformation but can withstand greater forces, thereby achieving different damping effects under different vibration conditions.

[0051] Specifically, the first damping spring 16 has a smaller wire diameter and potentially lower stiffness, allowing it to undergo greater elastic deformation under relatively small external forces, thereby better absorbing and cushioning smaller vibrations. The second damping spring 17 has a larger wire diameter and greater stiffness, maintaining good stability under relatively large external forces, ensuring that the rod 11 and the rod base 12 do not exceed a specific, pre-set range during reciprocating motion. This wire diameter design optimizes the overall vibration damping performance of the suspension rod assembly 10, improving the stability and reliability of the washing machine during operation.

[0052] First damping spring 16 and second damping spring 17 are coaxially arranged. When the washing machine vibrates due to an external force, the force is transmitted along the common axis of the coaxial arrangement of first damping spring 16 and second damping spring 17, thus preventing instability of the suspension rod assembly 10 caused by force offset. This coaxial arrangement also simplifies the structural design of the suspension rod assembly 10, reduces the additional stress and wear caused by uneven force transmission, and improves the service life and performance stability of the suspension rod assembly 10.

[0053] First damping spring 16 is mounted on rod 11. Rod 11, the primary load-bearing component of suspension rod assembly 10, provides a foundation for the installation and operation of first damping spring 16. The inner diameter of first damping spring 16 matches the outer diameter of rod 11, allowing it to fit tightly around rod 11 and elastically deform with the movement of rod 11. During operation, when rod 11 vibrates due to external forces, first damping spring 16 absorbs and dissipates the vibration energy through its own elastic deformation, thereby reducing the impact of vibration on other components of the washing machine and ensuring stable operation.

[0054] The boom barrel 13 includes a barrel top 131, which encloses the accommodating space 15 and forms an inner end 132 of the boom barrel 13. The inner end 132 is located within the accommodating space 15 and is provided with a through hole 1321 for the rod 11 to pass through. The diameter of the through hole 1321 matches the outer diameter of the rod 11. This fit is neither too loose, causing the rod 11 to wobble or deflect excessively within the boom barrel 13 and affect the stability of the boom assembly 10, nor too tight, hindering the normal movement of the rod 11. This precise dimensional correspondence effectively prevents the rod 11 from escaping from the boom barrel 13 during operation, ensuring the structural integrity and reliability of the boom assembly 10. For example, during high-speed dehydration, the rod 11 is subjected to significant centrifugal force. However, due to the appropriate correspondence between the diameter of the through hole 1321 and the outer diameter of the rod 11, the rod 11 can be stably retained within the boom barrel 13 and prevented from escaping.

[0055] One end of the first damping spring 16 is sleeved on the inner end portion 132 . The inner end portion 132 provides a stable installation base for the first damping spring 16 to improve the reliability of the first damping spring 16 .

[0056] See also Figure 4 , Figure 4 This is a schematic diagram of the structure of a washing machine provided in an embodiment of the present application. This embodiment of the present application provides a washing machine 100, which includes a housing 30, a barrel 20, and a suspension rod assembly 10. The barrel 20 is disposed within the housing 30. The suspension rod assembly 10 is the suspension rod assembly 10 described above, with one end of the suspension rod assembly 10 connected to the housing 30 and the other end connected to the barrel 20.

[0057] In some cases, the barrel body 20 is disposed in the box body 30 , the upper end of the rod 11 is connected to the upper portion of the box body 30 , and the cylinder base 14 is connected to the lower portion of the barrel body 20 .

[0058] Among them, the box body 30 can be a rectangular parallelepiped, the barrel body 20 can include an inner barrel 21 and an outer barrel 22, the inner barrel 21 can be rotatably arranged in the outer barrel 22, and the box body 30 and the barrel body 20 can be connected by four suspension rod assemblies 10 arranged at the four corners of the box body 30.

[0059] Each boom assembly 10 also includes a mounting member 19, which is fixedly connected to the upper end of the rod 11 and can be mounted on the upper portion of the housing 30. The drum base 14 can be mounted on the lower portion of the barrel 20. When the barrel 20 is pressed downward by a downward force (such as the weight of the barrel 20 itself and the weight of the internal load), the first and second damping springs 16 and 17 elastically deform. This allows the barrel 20 to automatically adjust its balance within the housing 30 using its own weight.

[0060] In the suspension rod assembly 10 and washing machine 100 provided in the embodiments of the present application, the suspension rod assembly 10 includes a rod 11, a rod support 12, a suspension drum 13, a drum support 14, a first damping spring 16, and a second damping spring 17. The first damping spring 16 and the second damping spring 17 are both disposed within a receiving space 15 and are located on either side of the rod support 12 along the length of the rod 11. One end of the first damping spring 16 is connected to the rod support 12 and the other end is connected to the suspension drum 13. One end of the second damping spring 17 is connected to the rod support 12 and the other end is connected to the drum support 14. When the washing machine 100 equipped with the suspension rod assembly 10 is in operation, if subjected to external forces (such as eccentric loads generated during the dehydration process), the rod 11 and the rod support 12 fixed thereto will vibrate. In this case, the rod 11 and the rod support 12 can reciprocate within a specific, predetermined range. This reciprocating motion effectively prevents imbalances caused by failure of friction block 18, ensuring the balance of washing machine 100 during operation. The elastic deformation of the damping spring converts vibration energy into elastic potential energy, effectively absorbing and dissipating vibration energy. This maintains the stability of washing machine 100 during operation, reduces noise and component wear caused by vibration, and improves the overall performance and service life of washing machine 100.

[0061] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0062] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more features.

[0063] The above describes in detail the boom assembly and washing machine provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only intended to help understand the present application. At the same time, those skilled in the art may find that the specific implementation methods and application scopes may vary based on the concepts of the present application. In summary, the contents of this specification should not be construed as limiting the present application.

Claims

1. A boom assembly, characterized in that: Applied to a washing machine, the suspension rod assembly comprises: rods; A rod base support, the rod base support being fixedly connected to one end of the rod member; A boom tube, the boom tube being sleeved on the rod member; A tube base support, the tube base support is fixedly connected to one end of the boom tube, and the boom tube and the tube base support jointly define an accommodating space; A first shock-absorbing spring and a second shock-absorbing spring, the first shock-absorbing spring and the second shock-absorbing spring are both arranged in the accommodating space and are respectively located on both sides of the rod base support along the length direction of the rod member; one end of the first shock-absorbing spring is connected to the rod base support, and the other end is connected to the suspension rod tube; one end of the second shock-absorbing spring is connected to the rod base support, and the other end is connected to the tube base support.

2. The boom assembly according to claim 1, wherein: It also includes a friction block, which is fixed on the rod base, and the outer periphery of the friction block is in sliding contact with the inner side wall of the boom tube.

3. The boom assembly according to claim 2, wherein: The friction block is sleeved on the rod base.

4. The boom assembly according to any one of claims 1 to 3, characterized in that: An annular flange is provided at one end of the rod member close to the rod base, and the annular flange extends radially on the circumference of the rod member. One end of the second damping spring is sleeved on and abuts against the annular flange.

5. The boom assembly according to claim 4, wherein: A positioning groove is provided on the annular flange, and the second damping spring is clamped in the positioning groove.

6. The boom assembly according to any one of claims 1 to 3, characterized in that: The wire diameter of the first damping spring is smaller than or equal to the wire diameter of the second damping spring.

7. The boom assembly according to any one of claims 1 to 3, characterized in that: The first damping spring and the second damping spring are coaxially arranged.

8. The boom assembly according to any one of claims 1 to 3, characterized in that: The first damping spring is sleeved on the rod.

9. The boom assembly according to any one of claims 1 to 3, characterized in that: The boom tube includes a tube top, which closes the accommodating space and constitutes the inner end of the boom tube. The inner end is arranged in the accommodating space, and a through hole is provided on the inner end for the rod to pass through; one end of the first shock-absorbing spring is sleeved on the inner end.

10. A washing machine, characterized in that: include: Box; a barrel body, the barrel body being arranged in the box body; A boom assembly, wherein the boom assembly is the boom assembly according to any one of claims 1 to 9, one end of the boom assembly is connected to the box body, and the other end is connected to the barrel body.

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