Footing, footing control system and clothing processing equipment

Abstract

The present invention provides a footing, a footing control system, and a clothing processing device, which belong to the technical field of support mechanisms. The footing includes a base and an adjusting portion, the adjusting portion includes a guide block provided on the base and a shell slidably engaged with the guide block, a volumetrically variable cavity is defined between the shell and the guide block; a pressure block and a variable stiffness damper, the pressure block is movably provided in the cavity, dividing the cavity into a first volumetric variable cavity and a second volumetric variable cavity, the variable stiffness damper is provided in the first volumetric cavity, one end of the variable stiffness damper in the compression direction acts together with the pressure block, and the other end acts together with the guide block; the pressure value of the second volumetric cavity can be controlled to change, so as to synchronously adjust the compression amount of the variable stiffness damper and the position of the shell relative to the guide block by changing the pressure value of the second volumetric cavity. The present invention can achieve a variable stiffness support effect for the supported body by providing a variable stiffness damper in the footing.

Description

Technical Field

[0001] The present invention relates to the technical field of support mechanisms, and in particular to a footing, a footing control system and clothing processing equipment. Background Art

[0002] The footing is a component installed at the bottom of the supported object to support and level the object.

[0003] However, traditional footings rely on manual adjustment of the nut on the footing to adjust the support height, making adjustment difficult. Furthermore, traditional footings can only change the support height, but not the support stiffness. This results in traditional footings being unable to adapt the support stiffness to the vibration or weight of the supported object, resulting in poor support and vibration reduction performance. Summary of the Invention

[0004] In order to overcome the problem that the base foot in the related art is difficult to adjust, and the problem that the existing base foot cannot match the corresponding support stiffness according to the vibration condition or change in the weight of the supported object, the embodiments of the present invention propose a base foot, a base foot control system and a clothing processing device, wherein a variable stiffness support effect for the supported object can be achieved by arranging a variable stiffness vibration damping member in the base foot, and a chamber with variable pressure is arranged in the base foot. When the support height of the base foot needs to be changed, the support height of the base foot can be adjusted by simply changing the chamber pressure, thereby making the base foot more convenient to adjust.

[0005] A first aspect of an embodiment of the present invention provides a footing, comprising a base and an adjusting portion provided on the base, wherein the adjusting portion comprises:

[0006] A guide block fixedly mounted on the base and a housing slidably engaged with the guide block, wherein a variable-volume cavity is defined between the slidingly engaged housing and the guide block, and when pressure is applied to an end of the housing remote from the base, the housing can slide toward the base relative to the guide block to change the volume of the cavity;

[0007] A pressure block and a variable stiffness vibration damper, wherein the pressure block is movably disposed in the cavity and is used to divide the cavity into a first cavity and a second cavity with variable volumes. The variable stiffness vibration damper is disposed in the first cavity, and one end of the variable stiffness vibration damper in the compression direction acts together with the pressure block, and the other end acts together with the guide block.

[0008] The pressure value of the second chamber can be controlled to change, so as to synchronously adjust the compression amount of the variable stiffness vibration damping member and the position of the shell relative to the guide block by changing the pressure value of the second chamber.

[0009] In the above technical solution, the variable stiffness vibration damper is designed so that when the pressure value of the second chamber is controlled to change, one end of the variable stiffness vibration damper always elastically presses on the pressure block and the other end always elastically presses on the guide block.

[0010] In the above technical solution, the pressing block has a first mating surface mating with the variable stiffness vibration damping member, a second mating surface opposite to the first mating surface, and a third mating surface between the first mating surface and the second mating surface for slidingly mating with the inner wall surface of the shell;

[0011] When the base foot is not subjected to external force, the second matching surface of the pressing block presses against the inner top surface of the shell away from the base, and the inner bottom surface of the shell presses against the guide block.

[0012] In the above technical solution, the variable stiffness vibration damper is a truncated cone coil spring, which has a wide end side and a narrow end side opposite to each other in the compression direction;

[0013] The wide end side of the truncated cone coil spring is matched with the guide block, and the narrow end side of the truncated cone coil spring is matched with the pressing block.

[0014] In the above technical solution, the guide block has a first guide block with a small diameter and a second guide block with a large diameter at both ends of the variable stiffness vibration damper in the compression direction, the bottom of the first guide block acts together with the top of the base, and the top of the second guide block acts together with the bottom of the variable stiffness vibration damper;

[0015] A first guide surface is formed on the outer periphery of the first guide block, a second guide surface is formed on the outer periphery of the second guide block, and a guide groove is provided on the bottom of the housing;

[0016] When the shell slides relative to the guide block, the guide groove at the bottom of the shell slides with the first guide surface of the first guide block, and the inner wall of the shell slides with the second guide surface of the second guide block.

[0017] In the above technical solution, a hydraulic oil port communicating with the second chamber is provided on the housing;

[0018] The hydraulic oil port is used to inject hydraulic oil into the second chamber or discharge the hydraulic oil from the second chamber to increase the pressure of the second chamber or reduce the pressure of the second chamber.

[0019] In the above technical solution,

[0020] The housing includes:

[0021] A lower shell and an upper shell are detachably connected together, the lower shell is sleeved on the outer periphery of the guide block and slides with the guide block, the upper shell is threadedly connected to the lower shell, and an opening is formed on the top of the upper shell;

[0022] The footing also includes:

[0023] A base connector, the base connector is screwed onto the top opening of the upper shell, and is provided with a hydraulic oil port connected to the second chamber;

[0024] The locking piece is arranged on the base foot connector and is used to lock the base foot connector and the upper shell together.

[0025] A second aspect of an embodiment of the present invention provides a footing control system, which includes a hydraulic control system and the footing provided by the first aspect of the embodiment;

[0026] The hydraulic control system is in fluid communication with the second cavity in the base foot via a hydraulic pipeline, so as to be able to change the pressure value in the second cavity by injecting hydraulic oil into the second cavity or discharging the hydraulic oil in the second cavity.

[0027] In the above technical solution, the hydraulic control system includes:

[0028] A hydraulic cylinder, one end of the hydraulic cylinder being connected to a hydraulic pipeline, the other end of which being connected to the second chamber of the footing, wherein a hydraulic plug is provided in the hydraulic cylinder and is controllably movable. When the hydraulic plug is movable, it is capable of pressurizing or depressurizing the second chamber through the hydraulic pipeline;

[0029] A ball valve is provided in the hydraulic pipeline. The ball valve can be controlled to move. When the ball valve moves, it can fluidically connect the second cavity and the hydraulic cylinder or disconnect the fluid connection between the second cavity and the hydraulic cylinder.

[0030] In the above technical solution, a hydraulic chamber is provided in the hydraulic cylinder, a hydraulic plug is provided in the hydraulic chamber and divides the hydraulic chamber into two variable-volume first and second hydraulic chambers, and the second hydraulic chamber is connected to the second chamber of the base foot via a hydraulic oil pipe;

[0031] The hydraulic control system also includes:

[0032] A connecting pipe, one end of which is connected to the first hydraulic chamber and the other end is connected to the second hydraulic chamber, and a cylinder control valve is also provided on the connecting pipe;

[0033] The oil cylinder control valve is controlled to open when the pressure value in the second hydraulic chamber and / or the second volume chamber is greater than a preset pressure value, so as to relieve the pressure in the second hydraulic chamber and / or the second volume chamber.

[0034] A third aspect of the embodiments of the present invention provides a clothes processing device, which includes the base provided by the first aspect of the embodiment or the base control system provided by the second aspect of the embodiment.

[0035] In the above technical solution, the clothes processing device includes:

[0036] The machine body is provided with a plurality of footing control systems, wherein the plurality of footings of the plurality of footing control systems are distributed along the outer peripheral side of the bottom of the machine body, and the footings are connected to the bottom of the machine body through footing connectors;

[0037] Level: The level is used to detect the levelness of the aircraft;

[0038] The control module is used to automatically adjust the height of at least one footing control system according to the horizontality of the machine body, so as to keep the machine body in a horizontal state.

[0039] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0040] In the embodiment of the present invention, a variable stiffness support effect for the supported body can be achieved by providing a variable stiffness vibration damping member in the base foot. By providing a chamber in which the pressure can be changed in the base foot, when the support height of the base foot needs to be changed, the support height of the base foot can be adjusted by simply changing the chamber pressure, thereby making the base foot more convenient to adjust. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0042] Figure 1 This is a schematic diagram of the main structure of a footing embodiment of the present invention;

[0043] Figure 2 A schematic diagram of the internal structure of a footing embodiment of the present invention;

[0044] Figure 3 Schematic diagram of the state change of the footing embodiment of the present invention during adjustment;

[0045] Figure 4 Schematic diagram of the internal structure of the hydraulic cylinder in the embodiment of the footing control system of the present invention;

[0046] Figure 5 Schematic diagram of the internal structure of the hydraulic pipeline in the embodiment of the footing control system of the present invention;

[0047] Figure 6 Schematic diagram of the structure of the clothes processing device in an embodiment of the present invention when connected to a footing control system.

[0048] Among them: 1-base; 2-guide block; 21-first guide block; 22-second guide block; 3-housing; 31-lower shell; 32-upper shell; 33-base connector; 331-hydraulic oil port; 4-cavity; 41-first cavity; 42-second cavity; 5-pressure block; 6-truncated cone coil spring; 7-locking piece; 8-hydraulic pipeline; 9-hydraulic cylinder; 91-hydraulic cavity; 911-first hydraulic cavity; 912-second hydraulic cavity; 92-hydraulic plug; 93-connecting pipe; 94-cylinder control valve; 100-machine body; 200-level; 300-control module. DETAILED DESCRIPTION

[0049] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, like numbers in different figures represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present invention as detailed in the appended claims.

[0050] Currently, the existing base feet are difficult to adjust. At the same time, the existing base feet cannot match the corresponding support stiffness according to the vibration of the supported object or the change in the size of its own weight. The embodiments of the present invention propose a base foot, a base foot control system, a clothing processing device and a base foot adjustment method for the clothing processing device, wherein a variable stiffness support effect for the supported object can be achieved by arranging a truncated cone coil spring in the base foot, and a chamber with variable pressure is arranged in the base foot. When the support height of the base foot needs to be changed, the support height of the base foot can be adjusted by simply changing the chamber pressure, thereby making the base foot more convenient to adjust.

[0051] The following is combined with Figure 1 -Attached Figure 6 The technical solution of this embodiment is described in detail. The following implementation methods and embodiments can be combined with each other unless there is any conflict.

[0052] Example

[0053] like Figure 1-Figure 3 As shown, the first aspect of this embodiment provides a footing, comprising a base 1 and an adjusting portion provided on the base 1, wherein the adjusting portion comprises:

[0054] A guide block 2 is fixedly mounted on the base, and a housing 3 is slidably engaged with the guide block 2. A variable-volume cavity 4 is defined between the slidingly engaged housing 3 and the guide block 2. When pressure is applied to an end of the housing 3 away from the base 1, the housing 3 can slide toward the base 1 relative to the guide block 2 to change the volume of the cavity 4.

[0055] The pressure block 5 and the variable stiffness vibration damper are movably arranged in the cavity 4 to divide the cavity 4 into a first cavity 41 and a second cavity 42 with variable volumes. The variable stiffness vibration damper is arranged in the first cavity 41. One end of the variable stiffness vibration damper in the compression direction acts together with the pressure block 5, and the other end acts together with the guide block 2.

[0056] The pressure value of the second chamber 42 can be controlled to change, so as to synchronously adjust the compression amount of the variable stiffness vibration damper and the position of the housing 3 relative to the guide block 2 by changing the pressure value of the second chamber 42 .

[0057] In the embodiment of the present invention, a variable stiffness support effect for the supported body can be achieved by providing a variable stiffness vibration damping member in the base foot. By providing a chamber in which the pressure can be changed in the base foot, when the support height of the base foot needs to be changed, the support height of the base foot can be adjusted by simply changing the chamber pressure, thereby making the base foot more convenient to adjust.

[0058] It should be noted that the variable-stiffness vibration damper can be a spring damper or a rubber damper. Preferably, a spring damper provides a better variable-stiffness vibration damping effect. Furthermore, when a spring damper is used, a truncated conical coil spring can achieve even better variable-stiffness vibration damping effects.

[0059] In order to more clearly understand the vibration reduction principle of the footing in the embodiment of the present invention, the following is a specific description using the variable stiffness support member as a truncated cone coil spring as an example:

[0060] Specifically, the footing in the present application can achieve a variable stiffness support effect when the entire body to be supported is subjected to external force through the above-mentioned structural arrangement, and can also change the pressure in the second cavity in the footing so that the truncated cone coil spring 6 in the footing moves downward to increase the support height effect while causing the shell in the footing to move upward, thereby achieving an effect that: when the footing is installed at the bottom of the body to be supported, when the body to be supported tilts to one side due to uneven ground, the footing installed on the tilted side is subjected to greater force as a whole, and the shell 3 and the truncated cone coil spring 6 in the shell 3 move downward at the same time, as shown in FIG. Figure 3As shown in the left figure, the truncated cone coil spring 6 is compressed. Although the support strength of the base foot on this side has increased, the object to be supported is still tilted. In this case, hydraulic oil can be separately injected into the second chamber 42 inside the housing to change the pressure of the second chamber 42 (of course, in some alternative embodiments, the pressure of the second chamber 42 can also be changed by other means). At this time, the housing 3 of the base foot moves upward, and the truncated cone coil spring 6 is compressed and moves downward. The upward movement of the housing 3 can lift the tilted side of the object to be supported, thereby keeping the entire object to be supported horizontal. The downward movement and compression of the truncated cone coil spring 6 can further increase the support force of the base foot, thereby improving the support effect of the tilted side (the base foot on the tilted side is subjected to greater force) while keeping the entire object to be supported horizontal.

[0061] It should be noted that the truncated conical coil spring 6 can restore to its original state during and after coiling, and no plastic deformation occurs during the compression process. For this reason, the height adjustment range of the base foot can be increased, and the stiffness of the truncated conical coil spring is nonlinear {the stiffness is different under different compression amounts, and the greater the compression amount, the greater the stiffness}. For this reason, the use of a truncated conical coil spring can achieve adjustable base foot stiffness. When the weight of the supported body increases, the compression amount of the truncated conical coil spring 6 can be increased to increase the stiffness and improve the support for the supported body. When the weight of the supported body decreases, the compression amount of the truncated conical coil spring 6 can be reduced to reduce the stiffness. On the one hand, it can achieve the supporting effect of the supported body, and on the other hand, it can also achieve the improvement of the service life of the truncated conical coil spring.

[0062] It should also be noted that, since the truncated cone coil spring 6 is in a cone shape, the truncated cone coil spring 6 operates more stably when compressed compared to other types of springs.

[0063] Taking the supporting body as a washing machine as an example, the base is set at the bottom of the washing machine, such as Figure 6 As shown, when the washing machine is fully loaded, the compression of the truncated conical coil spring 6 can increase when the gravity of the washing machine increases, thereby increasing the support stiffness of the base, thereby improving the support of the washing machine {of course, the compression of the truncated conical coil spring in the base can be actively adjusted to increase the support stiffness of the base}, and when the load of the washing machine is light, the compression of the truncated conical coil spring 6 can decrease when the gravity of the washing machine decreases, thereby reducing the stiffness {of course, the compression of the truncated conical coil spring in the base can be actively adjusted to reduce the support stiffness of the base}, thereby ensuring that the washing machine runs smoothly and reducing the vibration transmitted to the ground by the washing machine at high speed.

[0064] It should also be noted that the truncated conical coil spring 6 mentioned in this embodiment acts together with the pressure block 5 and the guide block 2 in the compression direction. The conical coil spring 6, the pressure block 5 and the guide block 2 can be connected together through a connecting medium to form a whole, or the three can be merely in contact with each other and do not form a whole.

[0065] In some embodiments, as Figure 2 and Figure 3 As shown, the truncated cone coil spring 6 is designed so that when the pressure value of the second chamber 42 is controlled to change, one end of the truncated cone coil spring 6 always elastically presses on the pressure block 5 and the other end always elastically presses on the guide block 2.

[0066] In this way, even if there is no pressure injected into the second cavity 42 in the base foot, the elastic top pressure of the truncated cone coil spring 6 can always keep the shell 3 in a taut state relative to the guide block 2 on the base 1, thereby avoiding the damping between the shell 3 and the guide block 2 being too small to affect the actual installation and use of the base foot.

[0067] In some embodiments, as Figure 2 and Figure 3 As shown, the pressure block 5 has a first mating surface that cooperates with the truncated cone coil spring 6, a second mating surface opposite to the first mating surface, and a third mating surface between the first mating surface and the second mating surface for slidingly cooperating with the inner wall surface of the housing 3;

[0068] Among them Figure 3 As shown in the left figure, when the base foot is not subjected to external force, the second mating surface of the pressure block 5 presses on the inner top surface of the shell 3 away from the base 1, and the inner bottom surface of the shell 3 presses on the guide block 2.

[0069] That is, in this application, through the abutment between the shell 3 and the guide block 2, when the side of the base foot away from the base is not affected by external force, the shell 3 can be in a taut state relative to the guide block 2 on the base 1, and when the end of the base foot away from the base 1 is affected by external force, the shell 3 can also be in a taut state relative to the guide block 2 on the base 1, so that the base foot in this application can ensure the taut state between the shell 3 and the guide block 2 no matter what the situation is.

[0070] In some embodiments, as Figure 2 and Figure 3 As shown, the truncated cone coil spring 6 has opposite wide end sides and narrow end sides in the compression direction;

[0071] The wide end side of the truncated cone helical spring 6 is matched with the guide block 1 , and the narrow end side of the truncated cone helical spring 6 is matched with the pressure block 5 .

[0072] That is, by setting the wide end side of the truncated cone coil spring 6 on the side close to the bottom end of the base and the narrow end side on the side away from the bottom end of the base, the truncated cone coil spring 6 in the base can be made more stable when compressed and deformed, thereby improving the stability effect when adjusting the base support height.

[0073] In some embodiments, as Figure 2 and Figure 3 As shown, the guide block 2 has a first guide block 21 with a small diameter and a second guide block 22 with a large diameter at both ends of the truncated cone coil spring 6 in the compression direction. The bottom of the first guide block 21 acts together with the top of the base 1, and the top of the second guide block 22 acts together with the bottom of the truncated cone coil spring 6.

[0074] A first guide surface is formed on the outer periphery of the first guide block 21, a second guide surface is formed on the outer periphery of the second guide block 22, and a guide groove is provided at the bottom of the housing 3;

[0075] When the housing 3 slides relative to the guide block 2 , the guide groove at the bottom of the housing 3 slides with the first guide surface of the first guide block 21 , and the inner wall of the housing 3 slides with the second guide surface of the second guide block 22 .

[0076] By setting the guide block 2 into a first guide block 21 with a small diameter and a second guide block 22 with a large diameter, on the one hand, only a smaller guide groove needs to be set at the bottom of the shell 3 to achieve sliding cooperation with the first guide block 21, avoiding the influence of the larger guide groove on the sealing and rigidity of the base foot; on the other hand, the contact area between the width side of the truncated cone coil spring 6 and the second guide block 22 can be increased, thereby improving the stability of the base foot during use.

[0077] It should be noted that the first guide block 21 and the second guide block 22 in the embodiment of the present invention can be either a separate assembly or an integrally formed structure. However, it is relatively preferred that the first guide block 21 and the second guide block 22 be configured as an integrally formed structure, as this can enhance the structural strength of the guide block 2 formed by the first guide block 21 and the second guide block 22, and the integrally formed guide block 2 is quicker and more convenient to assemble.

[0078] In some embodiments, as Figure 2 and Figure 3 As shown, the housing 3 is provided with a hydraulic oil port 331 communicating with the second cavity;

[0079] The hydraulic oil port 331 is used to inject hydraulic oil into the second chamber 42 or discharge the hydraulic oil from the second chamber 42 to increase or decrease the pressure of the second chamber 42 .

[0080] That is, the base foot in the present application changes the pressure of the second chamber 42 by injecting hydraulic oil, thereby adjusting the base foot support height, which is more convenient and quicker than the traditional method of adjusting the base foot height by manually rotating the nut.

[0081] In some embodiments, as Figure 2 and Figure 3 As shown, the housing 3 includes:

[0082] A lower shell 31 and an upper shell 32 are detachably connected together. The lower shell 31 is sleeved on the outer periphery of the guide block 2 and slides with the guide block 2. The upper shell 32 is threadedly connected to the lower shell 31, and an opening is formed at the top of the upper shell 32.

[0083] Specifically, the base also includes a base connector 33 and a locking member 7, wherein the base connector 33 is screwed onto the top opening of the upper shell 32, and a hydraulic oil port 331 connected to the second cavity 42 is provided on the base connector 33. The locking member 7 is provided on the base connector 33 for locking the base connector 33 and the upper shell 32 together.

[0084] Specifically, the assembly process of the base foot is as follows: first, place the guide block 2 into the lower shell 31; then place the truncated cone coil spring 6 into the lower shell 31, and then place the pressure block 5; place the base foot connector 33 into the upper shell 33, and screw it in and tighten it; use a wrench to thread the lower shell 31 and the upper shell 32 together and tighten them; screw the locking piece 7 into the base foot connector 33 and thread it tight; use a wrench to thread the base 1 and the guide block 2 together and tighten them; the base foot is assembled. Preferably, the locking piece 7 uses a lock nut.

[0085] It should be noted that the reason the base 1 and guide block 2 are separated and threaded in this application is because the base (preferably made of rubber) contacts the ground. When the footing is used in a washing machine, it is prone to severe wear and aging with increasing wash cycles and harsh ground conditions. When this occurs, the base needs to be replaced. Therefore, to facilitate replacement, this embodiment separates the base from the guide block, making it easier to replace the base later.

[0086] It should also be noted that the locking member 7 is designed in this application because the base connector 33 is the inlet of the oil and is prone to loosening after long-term operation. A locking member is designed here to prevent the base connector 33 from loosening.

[0087] Furthermore, the second aspect of this embodiment further provides a footing control system, which includes a hydraulic control system and the footing provided by the first aspect of the embodiment;

[0088] The hydraulic control system is in fluid communication with the second chamber 42 in the footing through the hydraulic line 8 , so as to be able to change the pressure value in the second chamber 42 by injecting hydraulic oil into the second chamber 42 or discharging the hydraulic oil in the second chamber 42 .

[0089] By setting up a footing control system, when the footing is installed at the bottom of the object to be supported, the support height and support stiffness of the footing can be automatically adjusted according to the state of the object to be supported.

[0090] Specifically, such as Figure 4 and Figure 5 As shown, the hydraulic control system includes:

[0091] A hydraulic cylinder 9 is connected to one end of a hydraulic line 8, and the other end of the hydraulic line 8 is connected to the second chamber 42 of the base. A hydraulic piston 92 is provided in the hydraulic cylinder 9. The hydraulic piston 92 can be controlled to move. Specifically, the hydraulic piston 92 is driven to move by a stepping motor. When the hydraulic piston 92 moves, it can pressurize or depressurize the second chamber 42 through the hydraulic line 8;

[0092] A ball valve 81 is provided in the hydraulic pipeline 8, and the ball valve 81 can be controlled to move. Specifically, the ball valve 81 is driven to rotate by a servo motor. When the ball valve 82 moves, it can fluidically connect the second cavity 42 and the hydraulic cylinder 9 or disconnect the fluid connection between the second cavity 42 and the hydraulic cylinder 9.

[0093] More specifically, the ball valve 81 is set in the hydraulic pipeline 8 to control the opening and closing of the hydraulic oil of the base foot; the servo motor controls the rotation of the ball valve, thereby controlling the opening and closing of the oil circuit; the stepper motor controls the downward / upward rotation of the hydraulic plug, thereby achieving pressurization and pressure relief.

[0094] In some embodiments, a hydraulic chamber 91 is provided in the hydraulic cylinder 9, and a hydraulic plug 92 is provided in the hydraulic chamber 91 and divides the hydraulic chamber 91 into two variable-volume first hydraulic chambers 911 and second hydraulic chambers 912. The second hydraulic chamber 912 is connected to the second chamber 42 of the base through a hydraulic oil pipe 8.

[0095] The hydraulic control system also includes:

[0096] A connecting pipe 93, one end of which is connected to the first hydraulic chamber 911 and the other end is connected to the second hydraulic chamber 912, and a cylinder control valve 94 is also provided on the connecting pipe 93;

[0097] The oil cylinder control valve 94 is controlled to open when the pressure value in the second hydraulic chamber 912 and / or the second volume chamber 42 is greater than a preset pressure value, so as to relieve the pressure in the second hydraulic chamber 412 and / or the second volume chamber 42 .

[0098] like Figure 6As shown in FIG, taking the base supported on the bottom of the washing machine as an example, bases are set at the four corners of the bottom of the washing machine. When the washing machine is placed on a certain degree of uneven surface, the washing machine body is in a tilted state; at this time, the base installed on the tilted side of the washing machine is subjected to a larger force as a whole, and the shell 3 in the base and the truncated cone coil spring 6 in the shell 3 move downward at the same time, as shown in FIG. Figure 3 As shown in the left figure, the truncated cone coil spring 6 is compressed. Although the support strength of the base foot on this side has increased, the object to be supported is still tilted. In this case, hydraulic oil can be separately injected into the second chamber 42 inside the housing to change the pressure of the second chamber 42 (of course, in some alternative embodiments, the pressure of the second chamber 42 can also be changed by other means). At this time, the housing 3 of the base foot moves upward, and the truncated cone coil spring 6 is compressed and moves downward. The upward movement of the housing 3 can lift the tilted side of the object to be supported, thereby keeping the entire washing machine horizontal. The downward movement and compression of the truncated cone coil spring 6 can further increase the support force of the base foot, thereby improving the support effect on the tilted side (the base foot on the tilted side is subjected to greater force) while keeping the entire washing machine horizontal.

[0099] Furthermore, the third aspect of this embodiment also provides a clothes processing device, which includes the base provided by the first aspect of the embodiment or the base control system provided by the second aspect of the embodiment.

[0100] Specifically, such as Figure 5 As shown, the clothes processing device includes:

[0101] The machine body 100 is provided with a plurality of footing control systems, wherein the plurality of footings of the plurality of footing control systems are distributed along the outer peripheral side of the bottom of the machine body; and the footings are connected to the bottom of the machine body through footing connectors 33;

[0102] A level 200 is used to detect the levelness of the machine body 100;

[0103] The control module 300 is used to automatically adjust the height of at least one footing in the footing control system according to the levelness of the machine body 100 so as to keep the machine body 100 in a horizontal state.

[0104] Taking the clothing processing device as a washing machine as an example, the above-mentioned base control system is set up in four groups, and the four bases in the four groups of base control systems are connected to the four corners of the bottom of the washing machine. Of course, in some alternative embodiments, the clothing processing device can also be a dryer or a washer-dryer. The specific form of the clothing processing device is not limited in this embodiment. At the same time, in some alternative embodiments, the base control system can also be set to other numbers and can also be set at other positions. The setting position and number of the bases are not specifically limited in this embodiment.

[0105] like Figure 6 As shown, when the washing machine is placed on a non-planar surface to a certain extent, the washing machine body is in a tilted state; after the washing machine is plugged in and turned on, the control module 300 controls the four hydraulic cylinders to operate according to the signal fed back by the spirit level 200, and pressurizes the four base feet at the bottom corners of the washing machine to adjust their height until the spirit level feedback signal indicates that the washing machine is in a stable state.

[0106] Specific process:

[0107] Pressurization increases the footing height: The stepper motor begins operating, driving the hydraulic piston 92 to rotate downward. (At this point, the cylinder control valve 94 is closed and only opens when the oil pressure is too high.) Oil is squeezed into the hydraulic line 8, where the ball valve 81 is now open. The oil flows through the hydraulic line 8 connector and into the footing connector 33. The oil then presses the pressure block 5 downward, which in turn presses the truncated cone coil spring 6 downward. Because the guide block 2 is fixed in position, the reaction force causes the housing 3 to move upward relative to the guide block 2, thereby increasing the overall height of the footing and subsequently raising the downwardly tilted side of the washing machine to achieve leveling. (The initial footing height is lowered due to the washing machine's own weight. The adjustable footing height range is from its initial compressed state to its free state.) Once the washing machine stabilizes, the ball valve 81 in the hydraulic line 8 closes to maintain pressure, and the stepper motor stops.

[0108] Pressure relief, lowering the base foot height: the stepper motor starts working and drives the hydraulic piston 92 to rotate upward {at this time, the cylinder control valve 94 is in the closed state and will only open when the oil pressure is too high}, the ball valve 81 opens, and the oil flows back from the base foot to the hydraulic cylinder, thereby reducing the pressure of the pressure block 5 in the base foot on the truncated cone coil spring 6, and the height of the base foot is lowered.

[0109] It should be noted that, since the hydraulic oil is injected, the connection parts of the base need to be sealed during the assembly process of the base to avoid oil leakage.

[0110] Furthermore, a fourth aspect of this embodiment further provides a method for adjusting the base of a clothes processing device, which is applied to the clothes processing device provided by the fourth aspect of the embodiment, wherein the clothes processing device has a stationary state and an operating state; the method for adjusting the base includes:

[0111] Get the level information of the level instrument;

[0112] If the levelness information does not meet the levelness requirement, further obtaining the current state of the clothes processing device;

[0113] If the clothes processing device is currently in a stationary state, the control module automatically controls the support height of the base according to the level information detected by the level meter to level the clothes processing device;

[0114] If the clothes processing device is in operation, the support height of the base is not adjusted, and the leveling is performed when the clothes processing device is in a stationary state again.

[0115] It should be noted that the aforementioned stationary state of the laundry processing device refers to a state in which the laundry processing device is powered on and the laundry processing drum is stationary, while the aforementioned running state of the laundry processing device refers to a state in which the laundry processing device is powered on and the laundry processing drum is rotating.

[0116] The reason for leveling the laundry machine when it is stationary is that the motor of the laundry machine generates a certain amount of noise when in operation. Therefore, adjusting the base when the laundry machine is powered on but not processing clothes will not cause noise or vibration in the laundry machine. However, leveling the laundry machine while it is running will cause the laundry machine to generate a lot of noise while processing clothes.

[0117] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow from the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0118] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A footing, characterized in that: It comprises a base (1) and an adjusting portion provided on the base (1), wherein the adjusting portion comprises: A guide block (2) fixedly arranged on the base, and a shell (3) slidably engaged with the guide block (2), wherein a volume-variable cavity (4) is defined between the slidably engaged shell (3) and the guide block (2), and if pressure is applied to an end of the shell (3) away from the base (1), the shell (3) can slide relative to the guide block (2) toward the side of the base (1) to change the volume of the cavity (4); A pressure block (5) and a variable stiffness vibration damper, wherein the pressure block (5) is movably arranged in the cavity (4) and is used to divide the cavity (4) into a first cavity (41) and a second cavity (42) with variable volumes, and the variable stiffness vibration damper is arranged in the first cavity (41), and one end of the variable stiffness vibration damper in the compression direction acts together with the pressure block (5) and the other end acts together with the guide block (2); The pressure value of the second cavity (42) can be controlled to change, so as to synchronously adjust the compression amount of the variable stiffness vibration damping member and the position of the housing (3) relative to the guide block (2) by changing the pressure value of the second cavity (42).

2. The footing according to claim 1, wherein: The variable stiffness vibration damper is designed such that when the pressure value of the second cavity (42) is controlled to change, one end of the variable stiffness vibration damper is always elastically pressed against the pressure block (5), and the other end is always elastically pressed against the guide block (2).

3. The footing according to claim 1, wherein: The pressing block (5) has a first mating surface mating with the variable stiffness vibration damping component, a second mating surface opposite to the first mating surface, and a third mating surface between the first mating surface and the second mating surface for slidingly mating with the inner wall surface of the housing (3); Wherein, when the base foot is not subjected to external force, the second mating surface of the pressing block (5) presses against the inner top surface of the shell (3) on the side away from the base (1), and the inner bottom surface of the shell (3) presses against the guide block (2).

4. The footing according to any one of claims 1 to 3, characterized in that: The variable stiffness vibration damping member is a truncated cone coil spring (6), and the truncated cone coil spring (6) has a wide end side and a narrow end side opposite to each other in the compression direction; The wide end side of the truncated cone helical spring (6) cooperates with the guide block (2), and the narrow end side of the truncated cone helical spring (6) cooperates with the pressure block (5).

5. The footing according to any one of claims 1 to 3, characterized in that: The guide block (2) comprises a first guide block (21) with a small diameter and a second guide block (22) with a large diameter at both ends of the variable stiffness vibration damper in the compression direction, the bottom of the first guide block (21) acting together with the top of the base (1), and the top of the second guide block (22) acting together with the bottom of the variable stiffness vibration damper; A first guide surface is formed on the outer periphery of the first guide block (21), a second guide surface is formed on the outer periphery of the second guide block (22), and a guide groove is provided at the bottom of the housing (3); When the housing (3) slides relative to the guide block (2), the guide groove at the bottom of the housing (3) slides with the first guide surface of the first guide block (21), and the inner wall surface of the housing (3) slides with the second guide surface of the second guide block (22).

6. The footing according to any one of claims 1 to 3, characterized in that: The housing (3) is provided with a hydraulic oil port (331) communicating with the second cavity; The hydraulic oil port (331) is used to inject hydraulic oil into the second chamber (42) or discharge the hydraulic oil from the second chamber (42) to increase the pressure of the second chamber (42) or reduce the pressure of the second chamber (42).

7. The footing according to claim 6, characterized in that The housing (3) comprises: a lower shell (31) and an upper shell (32) that are detachably connected together, wherein the lower shell (31) is sleeved on the outer periphery of the guide block (2) and slidably engages with the guide block (2), and the upper shell (32) is threadedly connected to the lower shell (31), and an opening is formed at the top of the upper shell (32); The footing further comprises: A base connecting head (33) and a locking member (7), wherein the base connecting head (33) is screwed onto the top opening of the upper shell (32), the base connecting head (33) is provided with the hydraulic oil port (331) communicating with the second cavity (42), and the locking member (7) is provided on the base connecting head (33) for locking the base connecting head (33) and the upper shell (32) together.

8. A footing control system, characterized in that: comprising a hydraulic control system and a footing according to any one of claims 1 to 7; The hydraulic control system is in fluid communication with the second cavity (42) in the base foot via a hydraulic pipeline (8), so that the pressure value in the second cavity (42) can be changed by injecting hydraulic oil into the second cavity (42) or discharging the hydraulic oil in the second cavity (42).

9. The footing control system according to claim 8, characterized in that: The hydraulic control system includes: A hydraulic cylinder (9), wherein the hydraulic cylinder (9) is connected to one end of the hydraulic pipeline (8), and the other end of the hydraulic pipeline (8) is connected to the second volume cavity (42) of the base foot. A hydraulic plug (92) is provided in the hydraulic cylinder (9), and the hydraulic plug (92) can be controlled to move. When the hydraulic plug (92) moves, it can pressurize or depressurize the second volume cavity (42) through the hydraulic pipeline (8); A ball valve (81) is provided in the hydraulic pipeline (8), and the ball valve (81) can be controlled to move. When the ball valve (81) moves, it can fluidically connect the second cavity (42) and the hydraulic cylinder (9) or disconnect the fluid connection between the second cavity (42) and the hydraulic cylinder (9).

10. The footing control system according to claim 9, characterized in that: The hydraulic cylinder (9) is provided with a hydraulic chamber (91), the hydraulic plug (92) is provided in the hydraulic chamber (91) and divides the hydraulic chamber (91) into two variable-volume first hydraulic chambers (911) and second hydraulic chambers (912), the second hydraulic chamber (912) being connected to the second chamber (42) of the base foot via the hydraulic pipeline (8); The hydraulic control system further comprises: a connecting pipe (93), one end of the connecting pipe (93) being connected to the first hydraulic chamber (911) and the other end being connected to the second hydraulic chamber (912), and the connecting pipe (93) being further provided with an oil cylinder control valve (94); The oil cylinder control valve (94) is controlled to open when the pressure value in the second hydraulic chamber (912) and / or the second volume chamber (42) is greater than a preset pressure value, so as to relieve the pressure in the second hydraulic chamber (912) and / or the second volume chamber (42).

11. A clothes processing device, characterized in that: The method comprises the footing according to any one of claims 1 to 7 or the footing control system according to any one of claims 8 to 10.

12. The clothes treating device according to claim 11, characterized in that: The laundry processing device comprises: A machine body (100), wherein the machine body (100) is provided with a plurality of the footing control systems, wherein the plurality of footings of the plurality of footing control systems are distributed along the outer peripheral side of the bottom of the machine body, and the footings are connected to the bottom of the machine body via the footing connectors; A level (200), the level (200) being used to detect levelness information of the machine body (100); A control module (300) is used to automatically adjust the height of at least one footing in the footing control system according to the horizontality of the machine body (100), so as to keep the machine body (100) in a horizontal state.

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