Double-suspender vibration damping device of rod type damping pulsator washing machine

Abstract

The invention provides a rod type damping pulsator washing machine double-suspender damping device, and relates to the technical field of washing machines, the rod type damping pulsator washing machine double-suspender damping device comprises an upper suspender, a lower suspender and a sleeve body, the upper end of the upper suspender is installed on a washing machine shell, the lower end of the upper suspender is fixedly provided with a spring lower support, and the upper suspender is slidably provided with an upper seat and a spring upper support; the damping spring is arranged between the spring upper support and the spring lower support, the friction element is installed in a cavity between the upper base and the spring upper support, and the lower end of the lower hanging rod is installed between the middle and the bottom of an outer barrel of the washing machine. Therefore, the included angle between the device and the outer barrel of the washing machine is increased, the deviation rectifying capacity of the device is improved, the washing machine runs more stably, the friction element is limited and prevented from falling off, it is guaranteed that the friction element is in a stable state in the vibration reduction process, and the vibration reduction effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of washing machines, in particular to a double-hanging-rod vibration reduction device for a rod-type damping pulsator washing machine. Background Art

[0002] During the operation of the pulsator washing machine, the washing tub rotates continuously. When the pulsator rotates the clothes, centrifugal force is generated, and the washing tub moves forward, backward, left and right. The balance of the washing tub during operation is maintained by supporting the vibration reduction device. The vibration reduction device of the existing pulsator washing machine mainly includes a vibration reduction sleeve and a suspension rod connected together. Since the outer barrel of the pulsator washing machine is vertically arranged, the upper end of the suspension rod is installed on the washing machine body, and the vibration reduction sleeve is installed on the hanging seat at the bottom of the outer barrel of the washing machine, so that the angle between the outer barrel of the washing machine and the vibration reduction device is small, resulting in limited pulling force of the vibration reduction device on the washing machine in the horizontal direction, so the vibration reduction device has limited correction ability for the washing machine, and the volume of the vibration reduction sleeve at the lower end of the existing vibration reduction device is large. If the vibration reduction sleeve is installed between the middle and bottom of the outer barrel of the washing machine, in order to avoid interference between the outer barrel wall of the washing machine and the vibration reduction sleeve, the hanging seat needs to be enlarged. Without increasing the volume of the washing machine, this will cause the hanging seat to interfere with the washing machine body, so the existing vibration reduction device cannot be installed between the middle and bottom of the outer barrel of the washing machine.

[0003] Therefore, there is a need for a double-hanging-rod vibration reduction device for a rod-type damping pulsator washing machine that solves the above-mentioned problems. Summary of the invention

[0004] The present invention proposes a double-hanging-rod vibration reduction device for a rod-type damping impeller washing machine. The arrangement of the double hanging rods enables the lower end of the device to be installed between the middle and bottom of the outer barrel of the washing machine, thereby increasing the angle between the device and the outer barrel of the washing machine, thereby improving the deviation correction ability of the device and making the washing machine run more stably. The device limits the friction element to prevent the friction element from falling off, thereby ensuring that the friction element is in a stable state during the vibration reduction process and improving the vibration reduction effect.

[0005] The technical solution of the present invention is achieved in this way: The double-hanging-rod vibration reduction device of a rod-type damping pulsator washing machine comprises: An upper hanging rod, wherein the upper end of the upper hanging rod is mounted on the washing machine housing, a spring lower support is fixedly mounted on the lower end of the upper hanging rod, an upper seat and a spring upper support are slidably mounted on the upper hanging rod, the upper seat and the spring upper support are fixedly mounted together, a cavity is provided between the upper seat and the spring upper support, a friction element is sleeved on the upper hanging rod, and the friction element is installed in the cavity; A lower hanging rod, the upper end of which is fixedly mounted with a lower seat, and the lower end of which is mounted between the middle and the bottom of the outer barrel of the washing machine; The vibration-damping sleeve comprises a sleeve body with openings at both ends, the upper seat is fixedly installed at the upper opening of the sleeve body, the lower seat is fixedly installed at the lower opening of the sleeve body, the spring upper support is arranged in the sleeve body, the spring lower support is slidably installed in the vibration-damping sleeve, the upper suspension rod sleeve is provided with a vibration-damping spring, and the vibration-damping spring is arranged between the spring upper support and the spring lower support.

[0006] As a preferred technical solution, an annular protrusion is provided at the bottom of the upper seat, the interior of the annular protrusion is a mounting cavity, and the friction element is arranged in the mounting cavity.

[0007] As a preferred technical solution, the spring upper support includes a first cylinder and a second cylinder that are integrally arranged, a limiting cavity is arranged on the first cylinder, the annular protrusion is inserted into the limiting cavity, a plurality of guide ribs are evenly distributed on the outer circumference of the first cylinder, a guide hole is arranged on the second cylinder, the guide hole is connected to the limiting cavity, the upper suspension rod is slidably installed in the guide hole, and a plurality of first reinforcing ribs are evenly distributed on the outer circumference of the second cylinder.

[0008] As a preferred technical solution, a plurality of first limit blocks are provided on the top of the installation cavity, a plurality of second limit blocks are provided on the top of the limit cavity, and the friction element is provided between the first limit blocks and the second limit blocks.

[0009] As a preferred technical solution, the top of the friction element and the installation cavity form a first oil storage cavity, and the bottom of the friction element, the bottom of the annular protrusion, and the limiting cavity form a second oil storage cavity.

[0010] As a preferred technical solution, a fixing portion is provided at the top of the first cylinder, and a matching portion is provided at the bottom of the upper seat, and the fixing portion abuts against the matching portion.

[0011] As a preferred technical solution, the spring lower support includes a connecting tube and a fixed plate integrally arranged from top to bottom, the through hole of the connecting tube extends downward through the fixed plate, the upper suspension rod is arranged in the through hole, and a plurality of fixing protrusions matching the upper suspension rod are arranged on the inner circumferential surface of the connecting tube, a plurality of second reinforcing ribs are evenly distributed on the outer circumferential surface of the connecting tube, a limiting sleeve is provided on the top of the fixed plate, the second reinforcing rib extends from the outer circumferential surface of the connecting tube to the limiting sleeve, and the lower end of the damping spring abuts against the top surface of the fixed plate.

[0012] As a preferred technical solution, the friction element is a cylindrical damping sleeve with openings at both ends, or the friction element is formed by rolling a damping sheet wrapped around the upper suspension rod.

[0013] As a preferred technical solution, a suspension rod seat is installed on the upper end of the upper suspension rod and the lower end of the lower suspension rod, and a waterproof plate is sleeved on the upper suspension rod, and the waterproof plate is arranged between the upper seat and the corresponding suspension rod seat.

[0014] By adopting the above technical solution, the beneficial effects of the present invention are as follows: Since the double-hanging-rod vibration reduction device of the rod-type damping impeller washing machine includes an upper hanging rod, a lower hanging rod and a vibration reduction sleeve, according to the physical formula Fx=F×cos(α), where F represents the magnitude of the force, Fx represents the component force of F in the horizontal direction, and α represents the inclination angle between F and the horizontal plane, it can be seen from the above formula that the larger the inclination angle between F and the horizontal plane, the smaller the cos(α), resulting in a smaller component force Fx in the horizontal direction. In the process of using this device, the lower hanging rod is installed between the middle and bottom of the washing machine outer barrel, avoiding interference between the vibration reduction sleeve and the wall of the washing machine outer barrel, increasing the angle between the device and the washing machine outer barrel, that is, reducing the inclination angle α between the device and the horizontal plane, thereby increasing the component force of the device in the horizontal direction, and then increasing the deviation correction ability of the device. If the washing machine outer barrel is offset due to centrifugal force, the component force in the horizontal direction of the device will quickly correct the washing machine, making the washing machine run more stably.

[0015] When the outer drum of the washing machine moves, friction damping is generated between the friction element and the upper hanging rod, which prevents the upper hanging rod and the sleeve body from sliding relative to each other, thereby achieving a vibration reduction effect. The friction element is limited by the spring upper support and the upper seat to prevent the friction element from falling off, thereby ensuring that the friction element is in a stable state during the vibration reduction process and improving the vibration reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 for Figure 1 The enlarged structural diagram at A in the middle; Figure 3 It is a structural schematic diagram of the vibration-damping sleeve and the lower suspension rod; Figure 4 It is a structural schematic diagram of the upper suspension rod; Figure 5 This is a schematic diagram of the structure of the upper seat; Figure 6It is a schematic diagram of the structure of the spring support; Figure 7 It is a structural schematic diagram of the spring support from another perspective; Figure 8 It is a structural schematic diagram of the spring support; Fig. 9 This is a reference diagram of the device being installed on a washing machine; Fig.10 This is a schematic diagram of the decomposition of force F.

[0018] Among them: 1. upper suspension rod; 2. washing machine shell; 3. spring lower support; 4. upper seat; 5. spring upper support; 6. cavity; 7. friction element; 8. lower suspension rod; 9. lower seat; 10. washing machine outer barrel; 11. sleeve body; 12. damping spring; 13. annular protrusion; 14. installation cavity; 15. first cylinder; 16. second cylinder; 17. limit cavity; 18. guide rib; 19. guide hole; 20. first reinforcing rib; 21. first limit block; 22. second limit block; 23. first oil storage cavity; 24. second oil storage cavity; 25. fixing part; 26. matching part; 27. fixing plate; 28. connecting pipe; 29. ​​fixing protrusion; 30. second reinforcing rib; 31. limit sleeve; 32. suspension rod seat; 33. waterproof board. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figure 1-Figure 10 As shown in the figure, a double-hanging-rod vibration reduction device for a rod-type damping pulsator washing machine comprises: An upper hanging rod 1, the upper end of the upper hanging rod 1 is installed on the washing machine housing 2, the lower end of the upper hanging rod 1 is fixedly installed with a spring lower support 3, an upper seat 4 and a spring upper support 5 are slidably installed on the upper hanging rod 1, the upper seat 4 and the spring upper support 5 are fixedly installed together, a cavity 6 is provided between the upper seat 4 and the spring upper support 5, a friction element 7 is sleeved on the upper hanging rod 1, and the friction element 7 is installed in the cavity 6.

[0021] A lower suspension rod 8 is provided, and a lower seat 9 is fixedly mounted on the upper end of the lower suspension rod 8 . The lower end of the lower suspension rod 8 is mounted between the middle and the bottom of the outer barrel 10 of the washing machine.

[0022] The vibration-damping sleeve comprises a sleeve body 11 with open ends, an upper seat 4 is fixedly installed at the upper open part of the sleeve body 11, a lower seat 9 is fixedly installed at the lower open part of the sleeve body 11, a spring upper support 5 is arranged in the sleeve body 11, a spring lower support 3 is slidably installed in the vibration-damping sleeve, an upper suspension rod 1 is provided with a vibration-damping spring 12, and the vibration-damping spring 12 is arranged between the spring upper support 5 and the spring lower support 3. In the present invention, the sleeve body 11 can be made of plastic or metal.

[0023] like Figure 1 and Figure 5 As shown together, an annular protrusion 13 is provided at the bottom of the upper seat 4 , and the interior of the annular protrusion 13 is a mounting cavity 14 , and the friction element 7 is disposed in the mounting cavity 14 .

[0024] like Figure 1 , Figure 6 and Figure 7 As shown together, the spring upper support 5 includes an integrally arranged first cylinder 15 and a second cylinder 16, a limiting cavity 17 is arranged on the first cylinder 15, the annular protrusion 13 is inserted into the limiting cavity 17, a plurality of guide ribs 18 are evenly distributed on the outer circumference of the first cylinder 15, a guide hole 19 is arranged on the second cylinder 16, the guide hole 19 is communicated with the limiting cavity 17, the upper suspension rod 1 is slidably installed in the guide hole 19, and a plurality of first reinforcing ribs 20 are evenly distributed on the outer circumference of the second cylinder 16. In the present invention, the setting of the guide ribs 18 enables the spring upper support 5 to adapt to the shock-absorbing springs 12 of different diameters, and also limits the upper end of the shock-absorbing spring 12, thereby ensuring the concentricity of the shock-absorbing spring 12 and the upper suspension rod 1, and ensuring the stability of the upper end of the shock-absorbing spring 12 during the shock-absorbing process.

[0025] like Figure 1 , Figure 5 and Figure 7 As shown together, a plurality of first limit blocks 21 are provided at the top of the installation cavity 14, a plurality of second limit blocks 22 are provided at the top of the limit cavity 17, and the friction element 7 is provided between the first limit blocks 21 and the second limit blocks 22. In the present invention, the first limit blocks 21 and the second limit blocks 22 are provided to limit the top and bottom of the friction element 7.

[0026] like Figure 1 As shown, the top of the friction element 7 and the mounting cavity 14 form a first oil storage cavity 23 , and the bottom of the friction element 7 , the bottom of the annular protrusion 13 , and the limiting cavity 17 form a second oil storage cavity 24 .

[0027] like Figure 1 , Figure 5 and Figure 6 As shown together, a fixing portion 25 is disposed on the top of the first cylinder 15 , and a matching portion 26 is disposed on the bottom of the upper seat 4 , and the fixing portion 25 abuts against the matching portion 26 .

[0028] like Figure 1 and Figure 8 As shown together, the spring lower support 3 includes a connecting tube 28 and a fixed plate 27 which are integrally arranged from top to bottom. The through hole of the connecting tube 28 extends downward through the fixed plate 27. The upper suspension rod 1 is arranged in the through hole. A plurality of fixing protrusions 29 which are compatible with the upper suspension rod 1 are arranged on the inner circumferential surface of the connecting tube 28. A plurality of second reinforcing ribs 30 are evenly distributed on the outer circumferential surface of the connecting tube 28. A limiting sleeve 31 is provided on the top of the fixed plate 27. The second reinforcing rib 30 extends from the outer circumferential surface of the connecting tube 28 to the limiting sleeve 31. The lower end of the damping spring 12 abuts against the top surface of the fixed plate 27. In the present invention, the setting of the limiting sleeve 31 makes the second reinforcing rib 30 more secure and also limits the lower end of the damping spring 12, thereby ensuring the stability of the lower end of the compression spring during the damping process. The setting of the fixing protrusion 29 can clamp the upper suspension rod 1, so that the spring lower support 3 is fixed to the upper suspension rod 1.

[0029] The friction element 7 adopts a cylindrical damping sleeve with openings at both ends to improve the fit; the friction element 7 can also be made of a damping sheet wrapped around the upper suspension rod 1, which can match a variety of models.

[0030] A suspension rod seat 32 is installed at the upper end of the upper suspension rod 1 and the lower end of the lower suspension rod 8 . A waterproof plate 33 is sleeved on the upper suspension rod 1 . The waterproof plate 33 is arranged between the upper seat 4 and the corresponding suspension rod seat 32 .

[0031] In summary, the setting of the double suspension rods in the present invention allows the lower end of the device to be installed between the middle and bottom of the outer barrel of the washing machine, thereby increasing the angle between the device and the outer barrel of the washing machine, and further improving the deviation correction ability of the device, making the operation of the washing machine more stable. The device limits the friction element to prevent the friction element from falling off, ensuring that the friction element is in a stable state during the vibration reduction process, thereby improving the vibration reduction effect.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-hanging-rod vibration reduction device for a rod-type damping pulsator washing machine, characterized in that: include: An upper hanging rod, wherein the upper end of the upper hanging rod is mounted on the washing machine housing, a spring lower support is fixedly mounted on the lower end of the upper hanging rod, an upper seat and a spring upper support are slidably mounted on the upper hanging rod, the upper seat and the spring upper support are fixedly mounted together, a cavity is provided between the upper seat and the spring upper support, a friction element is sleeved on the upper hanging rod, and the friction element is installed in the cavity; A lower hanging rod, the upper end of which is fixedly mounted with a lower seat, and the lower end of which is mounted between the middle and the bottom of the outer barrel of the washing machine; The vibration-damping sleeve comprises a sleeve body with openings at both ends, the upper seat is fixedly installed at the upper opening of the sleeve body, the lower seat is fixedly installed at the lower opening of the sleeve body, the spring upper support is arranged in the sleeve body, the spring lower support is slidably installed in the vibration-damping sleeve, the upper suspension rod sleeve is provided with a vibration-damping spring, and the vibration-damping spring is arranged between the spring upper support and the spring lower support.

2. The double-hanging-rod vibration reduction device for a rod-type damping pulsator washing machine according to claim 1, characterized in that: An annular protrusion is arranged at the bottom of the upper seat, the interior of the annular protrusion is a mounting cavity, and the friction element is arranged in the mounting cavity.

3. The double-hanging-rod vibration reduction device for a rod-type damping pulsator washing machine according to claim 2, characterized in that: The spring upper support includes a first cylinder and a second cylinder that are integrally arranged, a limit cavity is arranged on the first cylinder, the annular protrusion is inserted into the limit cavity, a plurality of guide ribs are evenly distributed on the outer circumference of the first cylinder, a guide hole is arranged on the second cylinder, the guide hole is connected with the limit cavity, the upper suspension rod is slidably installed in the guide hole, and a plurality of first reinforcing ribs are evenly distributed on the outer circumference of the second cylinder.

4. The double-hanging-rod vibration reduction device for a rod-type damping pulsator washing machine according to claim 3, characterized in that: A plurality of first limit blocks are arranged on the top of the installation cavity, a plurality of second limit blocks are arranged on the top of the limit cavity, and the friction element is arranged between the first limit blocks and the second limit blocks.

5. The double-hanging-rod vibration reduction device for a rod-type damping pulsator washing machine according to claim 3, characterized in that: The top of the friction element and the installation cavity form a first oil storage cavity, and the bottom of the friction element, the bottom of the annular protrusion, and the limiting cavity form a second oil storage cavity.

6. The double-hanging-rod vibration reduction device for a rod-type damping pulsator washing machine according to claim 3, characterized in that: A fixing portion is provided at the top of the first cylinder, and a matching portion is provided at the bottom of the upper seat, and the fixing portion abuts against the matching portion.

7. The double-hanging-rod vibration reduction device for a rod-type damping pulsator washing machine according to claim 1, characterized in that: The spring lower support includes a connecting tube and a fixed plate integrally arranged from top to bottom, the through hole of the connecting tube extends downwardly through the fixed plate, the upper suspension rod is arranged in the through hole, a plurality of fixing protrusions matching the upper suspension rod are arranged on the inner circumferential surface of the connecting tube, a plurality of second reinforcing ribs are evenly distributed on the outer circumferential surface of the connecting tube, a limiting sleeve is provided on the top of the fixed plate, the second reinforcing rib extends from the outer circumferential surface of the connecting tube to the limiting sleeve, and the lower end of the damping spring abuts against the top surface of the fixed plate.

8. The double-hanging-rod vibration reduction device for a rod-type damping pulsator washing machine according to claim 1, characterized in that: The friction element is a cylindrical damping sleeve with openings at both ends, or the friction element is formed by rolling a damping sheet wrapped around the upper suspension rod.

9. The double-hanging-rod vibration reduction device for a rod-type damping pulsator washing machine according to claim 1, characterized in that: A suspension rod seat is installed on the upper end of the upper suspension rod and the lower end of the lower suspension rod. A waterproof plate is sleeved on the upper suspension rod, and the waterproof plate is arranged between the upper seat and the corresponding suspension rod seat.

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