WO2023206966A1 - Balance device, tub assembly, and laundry processing equipment - Google Patents

Abstract

Embodiments of the present application provide a balance device, a tub assembly, and laundry processing equipment. The balance device comprises balance assemblies and a balance ring; the number of the balance assemblies is at least two; the balance ring is provided with an annular groove used for accommodating the balance assemblies and second locking structures corresponding to first locking structures; when the balance ring rotates at a first rotating speed, the first locking structures is in locked engagement with the corresponding second locking structures, so that the balance assemblies are locked on the balance ring at intervals; when the balance ring rotates at a second rotating speed, the first locking structures and the corresponding second locking structures are unlocked under the action of centrifugal force, so that the balance assemblies can move along the annular groove, wherein the first rotating speed is lower than the second rotating speed.

Description

A balancing device, cylinder device and clothing processing equipment

Cross-references to related applications

This application is filed based on the Chinese patent application with application number 202220991147.1 and the filing date of April 26, 2022, and the Chinese patent application 202210451020.5 with the filing date of April 26, 2022, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated by reference into this application.

Technical field

The present application relates to the field of clothing cleaning and care technology, and in particular to a balancing device, a barrel device and clothing processing equipment.

Background technique

In the related art, there is a washing machine that relies on a balance ring provided on the inner cylinder to maintain the eccentric balance during the clothes dehydration stage. Specifically, a plurality of steel balls are enclosed in the balance ring. When the inner cylinder rotates eccentrically, the steel balls move inward. The opposite direction of the cylinder eccentricity is concentrated to balance the eccentric mass of the inner cylinder.

Generally speaking, when the equilibrium state is reached, the steel ball will remain relatively stationary in the balance ring. That is to say, the steel ball will not move in the balance ring at this time. However, when the inner drum is washing at a relatively low speed, During the dehydration stage or rinsing stage, or during the dehydration stage, when the inner cylinder is dehydrated at a low speed, the steel balls are easy to move in the balance ring and accumulate in an unbalanced position, which in turn causes the inner cylinder to experience greater eccentricity.

Contents of the invention

In view of this, embodiments of the present application are expected to provide a balancing device, a cylinder device and a clothing processing equipment to solve the technical problem in the related art that when the inner cylinder rotates at a relatively low speed, a large eccentricity is easily generated.

In order to achieve the above object, an embodiment of the present application provides a balancing device for clothing processing equipment, including:

At least two balance components, each of which includes a mass body and a first locking structure provided on the mass body;

Balance ring, the balance ring is provided with an annular groove that accommodates the balance component and a second locking structure corresponding to each of the first locking structures; when the balance ring rotates at a first speed, each of the The first locking structure locks and cooperates with the corresponding second locking structure, so that each of the balance components is locked on the balance ring at intervals; when the balance ring rotates at the second speed, each of the balance components The first locking structure and the corresponding second locking structure are unlocked under the action of centrifugal force, so that each of the balance components can move along the annular groove; wherein the first rotation speed is lower than the third rotation speed. Two speeds.

In one embodiment, when each of the balance components is locked on the balance ring at intervals, each of the balance components is evenly distributed along the circumferential direction of the ring groove.

In one embodiment, one of the first locking structure and the second locking structure is a keyhole, and the other one of the first locking structure and the second locking structure includes a latch. and an elastic member, the latch is inserted into or disengaged from the lock hole by cooperating with the elastic member.

In one embodiment, the annular groove has a first annular side wall and a second annular side wall, the first annular side wall is located outside the second annular side wall, and the keyhole is provided in the third annular side wall. on two annular side walls;

The mass body is provided with a pin hole, and the latch is movably inserted into the pin hole; when the balance ring rotates at the second speed, the latch is separated from the lock hole under the action of centrifugal force, and the The elastic member generates elastic deformation; when the rotation speed of the balance ring decreases from the second rotation speed to the first rotation speed, the latch is inserted into the lock hole under the elastic force of the elastic member.

In one embodiment, a support surface is formed in the pin hole, and a part of the side wall of the plug protrudes to form a convex portion. The elastic member is sleeved on the plug and is located between the support surface and the support surface. Between the protruding parts, one end of the elastic member close to the supporting surface is in contact with the supporting surface.

In one embodiment, a limiting surface is formed on the side wall of the pin hole between the supporting surface and the protruding portion. When the plug moves to the extreme position under the action of centrifugal force, the The protruding portion is in contact with the limiting surface.

In one embodiment, the mass body includes a mounting member and a sphere, and the sphere is disposed on the mounting member.

In one embodiment, a ball groove is provided on the mounting member, and the ball is rotatably disposed in the ball groove and can roll in the annular groove.

Another embodiment of the present application provides a barrel device, including: an inner barrel, an outer barrel, and the above-mentioned balancing device; the balancing ring is connected to the inner barrel and surrounds the opening side of the inner barrel.

Yet another embodiment of the present application provides a laundry treatment device, including: the above-mentioned barrel device.

Embodiments of the present application provide a balancing device, a barrel device and a clothing processing equipment, wherein the balancing device is provided with a first locking structure on the balance component, and a second locking structure is provided on the balance ring. When the balance ring Rotating at the first speed, each first locking structure locks and cooperates with the corresponding second locking structure, so that each balance component is locked on the balance ring at intervals. When the balance ring rotates at a second speed higher than the first speed, Rotate, each first locking structure and the corresponding second locking structure are unlocked under the action of centrifugal force, so that each balance component can move along the ring groove. Therefore, when the clothes processing equipment is in a stage where the inner drum rotates at the first speed, such as the washing stage, the rinsing stage or the dehydration stage of dehydration at the first speed, each first locking structure and the corresponding second lock can be used. The structural locking fit locks each balance component on the balance ring at intervals, thereby not only better preventing each balance component from moving in the ring groove, but also better preventing each balance component from accumulating in an unbalanced position, thus , which can play a better balancing role on the inner cylinder when the inner cylinder rotates at a relatively low first speed.

Description of the drawings

Figure 1 is a schematic diagram of the connection relationship between the inner cylinder and the balancing device of the laundry treatment equipment according to an embodiment of the present application;

Figure 2 is a front view of Figure 1;

Figure 3 is a cross-sectional view of A-A in Figure 2. The balance component in the figure is locked on the balance ring;

Figure 4 is a partial enlarged view of B in Figure 3;

Figure 5 is a structural schematic diagram of the balance component shown in Figure 4 being locked on the balance ring. The ring cover of the balance ring is omitted in the figure;

Figure 6 is an exploded view of Figure 5;

Figure 7 is a cross-sectional view of the inner cylinder and the balancing device shown in Figure 1 when rotating at a second speed, and the cross-sectional direction is the same as the A-A direction in Figure 2;

Figure 8 is a partial enlarged view of C in Figure 7;

Figure 9 is a schematic structural diagram of the balancing component shown in Figure 5;

Figure 10 is an exploded view of Figure 9;

Figure 11 is a front view of the balance assembly shown in Figure 5. The balance assembly shown in the figure is in a state of locking fit between the first locking structure and the second locking structure;

Figure 12 is a D-D cross-sectional view of Figure 11;

Figure 13 is another front view of the balance assembly shown in Figure 5. The balance assembly shown in the figure is in a state where the first locking structure and the second locking structure are unlocked;

Fig. 14 is a cross-sectional view taken along line E-E of Fig. 13 .

Detailed ways

It should be noted that, without conflict, the embodiments and the technical features in the embodiments can be combined with each other. The detailed description in the specific embodiments should be understood as an explanation of the purpose of the application and should not be regarded as Undue limitation on this application.

An embodiment of the present application provides a balancing device 10 for use in laundry treatment equipment. Please refer to FIGS. 1 to 8 . The balancing device 10 includes a balancing component 11 and a balancing ring 12 .

Referring to FIG. 5 , the number of balancing components 11 is at least two, that is to say, the number of balancing components 11 may be two or more than two. Each balance component 11 includes a mass body 111 and a first locking structure 112 provided on the mass body 111. The mass body 111 is a component with a certain weight that can play a balancing role.

Please refer to Figure 5. The balance ring 12 is provided with an annular groove 12a for accommodating the balance component 11 and a second locking structure 12b corresponding to each first locking structure 112. That is to say, the balance component 11 is disposed in the annular groove 12a. , and the first locking structure 112 on each balance component 11 can find the matching second locking structure 12b on the balance ring 12 . It should be noted that the number of the second locking structures 12b may be equal to the number of the first locking structures 112, or may be greater than the number of the first locking structures 112.

For example, please refer to FIGS. 4 and 5 . The balance ring 12 may be provided with a ring cover 122 and a ring body 121 having a ring groove 12 a . The top of the ring groove 12 a is open. The ring cover 122 detachably covers the ring groove 12 a . In the open position, when installing the balance component 11, the ring cover 122 can be opened, the balance component 11 is placed into the ring groove 12a from the opening at the top of the ring groove 12a, and then the ring cover 122 is placed in the open part of the ring groove 12a.

Please refer to Figures 4 and 5. When the balance ring 12 rotates at the first speed, each first locking structure 112 locks and cooperates with the corresponding second locking structure 12b, so that each balance component 11 is spacedly locked on the balance ring. 12, that is to say, with the cooperation of the first locking structure 112 and the corresponding second locking structure 12b, each balance component 11 is locked on the balance ring 12, or in other words, each balance component 11 is connected to the balance ring 12. The rings 12 remain relatively stationary, and any balance component 11 cannot move along the ring groove 12a. At the same time, in the locked state, there is a certain distance between the two adjacent balance components 11. There is no contact between components 11.

Please refer to Figure 8. When the balance ring 12 rotates at the second speed, each first locking structure 112 and the corresponding second locking structure 12b are unlocked under the action of centrifugal force, so that each balance component 11 can move along the ring groove 12a. movement; wherein the first rotational speed is lower than the second rotational speed, that is to say, when the rotational speed of the balance ring 12 reaches the second rotational speed higher than the first rotational speed, the centrifugal force generated by the balancing device 10 can cause the first locking structure 112 to Separated from the corresponding second locking structure 12b, each balancing component 11 is no longer locked on the balancing ring 12, but can move along the ring groove 12a.

Another embodiment of the present application provides a cylindrical device. Please refer to Figures 1 and 2. The cylindrical device includes: an inner tube 20, an outer barrel (not shown) and the claims provided by any embodiment of the present application. The balancing device 10. The balance ring 12 is connected to the inner cylinder 20 and surrounds the opening side of the inner cylinder 20 .

Yet another embodiment of the present application provides a laundry treatment device, including: the barrel device provided by any embodiment of the present application.

Specifically, the clothes treatment equipment may be any one or an integration of a clothes dryer, an integrated washer-dryer, a dehydrator, and a washing machine. The rotation axis of the inner drum 20 may be along the horizontal direction. For example, the clothes treatment equipment may be a drum washing machine. The rotation axis of the inner drum 20 may also be inclined at a certain angle relative to the vertical direction. For example, the clothes treatment equipment may be a stirring type washing machine. In a washing machine, the rotation axis of the inner drum 20 may also be along the vertical direction. For example, the laundry treatment equipment may be a pulsator washing machine.

The open side of the inner drum 20 refers to the side where the user puts clothes into the inner drum 20. That is to say, the open side of the inner drum 20 is provided with an opening that communicates with the washing cavity of the inner drum 20. The user puts clothes into the inner drum 20 through the opening. In the washing chamber of drum 20.

The rotation center line of the balance ring 12 roughly coincides with the rotation axis of the inner cylinder 20 . That is to say, the balance ring 12 is roughly coaxial with the inner cylinder 20 . When the inner cylinder 20 rotates, the balance ring 12 is driven to rotate synchronously, which is equivalent to the inner cylinder 20 The rotational speed during rotation is equal to the rotational speed of the balance ring 12.

The first rotational speed mainly refers to a relatively low rotational speed. At the first rotational speed, the centrifugal force generated by the balancing device 10 is not enough to separate the first locking structure 112 from the corresponding second locking structure 12b. The first speed is a speed range, rather than a specific speed. For example, the first rotation speed may be the rotation speed of the inner drum 20 when the laundry processing equipment is in the washing phase or the rinsing phase, or it may be the rotation speed of the inner drum 20 when the laundry processing equipment is in the dehydration phase and the inner drum 20 is dehydrating at a low speed, for example, low speed. It can be a speed lower than 300 to 400 rpm. It should be noted that during the washing stage and the rinsing stage, the rotation speed of the inner barrel 20 is low, and there is no need to correct the inner barrel 20 .

The second rotational speed mainly refers to a relatively high rotational speed. At the second rotational speed, the centrifugal force generated by the balancing device 10 can separate the first locking structure 112 from the corresponding second locking structure 12b. The second speed is also a speed range, rather than referring to a specific speed. The second rotation speed mainly refers to the rotation speed when the inner cylinder 20 performs dehydration at a high speed when the laundry processing equipment is in the dehydration stage. For example, the high speed may be 700 to 1200 rpm.

It can be understood that when the rotation speed of the balance ring 12 decreases from the second rotation speed to the first rotation speed, each balance component 11 can move its respective first locking structure 112 with the corresponding second locking structure by moving along the ring groove 12a. Structure 12b locking fit.

That is to say, the balancing device 10 of the embodiment of the present application is provided with a first locking structure 112 on the balance component 11 and a second locking structure 12b on the balance ring 12. When the balance ring 12 rotates at the first speed, Each first locking structure 112 locks and cooperates with the corresponding second locking structure 12b, so that each balance component 11 is spacedly locked on the balance ring 12. When the balance ring 12 rotates at a second rotation speed higher than the first rotation speed, , each first locking structure 112 and the corresponding second locking structure 12b are unlocked under the action of centrifugal force, so that each balance component 11 can move along the annular groove 12a. Therefore, when the clothes processing equipment is in a stage when the inner drum 20 rotates at the first rotation speed, such as the washing stage, the rinsing stage or the dehydration stage of dehydration at the first rotation speed, each first locking structure 112 can be connected with the corresponding second rotation speed. The locking structure 12b locks and cooperates to lock each balance component 11 on the balance ring 12 at intervals, thereby not only better preventing each balance component 11 from moving in the ring groove 12a, but also better preventing each balance component from moving in the ring groove 12a. 11 is accumulated in the unbalanced position, and further can play a better balancing role on the inner cylinder 20 when the inner cylinder 20 rotates at a relatively low first rotation speed.

Taking the clothes processing equipment as a drum washing machine as an example, in the related technology, during the washing stage, rinsing stage and dehydration stage of dehydration at low speed of the drum washing machine, the steel balls tend to move to the bottom side of the balance ring under the action of their own gravity and accumulate. On the bottom side of the balance ring, this results in a large eccentricity of the inner cylinder.

By using the balancing device 10 of the embodiment of the present application, each balancing component 11 can be locked on the balancing ring 12 at intervals during the washing phase, rinsing phase and dehydration phase of the drum washing machine at the first rotation speed. Therefore, it is possible to It is better to prevent each balance component 11 from moving to the bottom side of the balance ring 12 under the action of its own gravity and being accumulated on the bottom side of the balance ring 12, thereby providing a better balancing effect on the inner cylinder 20.

The mass body 111 in the embodiment of the present application may have various structural forms. For example, please refer to FIGS. 9 and 10 . The mass body 111 may include a mounting member 1111 and a sphere 1112 . The sphere 1112 is provided on the mounting member 1111 . FIG. The balance assembly 11 shown in Figures 9 and 10 is provided with multiple spheres 1112 on the mounting member 1111. In some embodiments, only one sphere 1112 may be provided on the mounting member 1111.

In one embodiment, the ball 1112 can rotate relative to the mounting member 1111. For example, please refer to Figures 9 and 10. A ball groove 1111a can be provided on the mounting member 1111. The ball 1112 is rotatably disposed in the ball groove 1111a and can be rotated in the ring. Rolling in the groove 12a, that is to say, the ball 1112 can roll on the bottom wall and/or the top wall of the ball groove 1111a. In order to facilitate the installation of the ball 1112, for example, please refer to Figures 9 and 10, the mounting member 1111 can be provided with a first fixing plate 11111 with a first half groove and a second fixing plate 11112 with a second half groove. The half groove and the second half groove together form the ball groove 1111a. When installing the ball 1112, first place the ball 1112 into the first half groove of the first fixing plate 11111, and then cover the second fixing plate 11112 on the first fixing plate 11111. and fasten the first fixing plate 11111 and the second fixing plate 11112 together with fasteners 11113 such as screws. After each first locking structure 112 and the corresponding second locking structure 12b are unlocked under the action of centrifugal force, the balls 1112 on each balance component 11 can roll in the annular groove 12a, thereby allowing the balance component 11 to Move relatively quickly along the ring groove 12a.

In some embodiments, the ball 1112 can also be fixed on the mounting member 1111 , that is, the ball 1112 cannot rotate relative to the mounting member 1111 , but the ball 1112 can move the balance assembly 11 by sliding along the annular groove 12 a.

In some embodiments, the mass body 111 may not adopt the structure of the mounting member 1111 and the ball 1112. For example, the mass body 111 may be a slider, and the slider realizes the movement of the balance assembly 11 by sliding along the annular groove 12a.

In addition, in order to facilitate the movement of the balance component 11 along the ring groove 12a, some lubricating grease can also be coated in the ring groove 12a and/or on the balance component 11.

In one embodiment, please refer to Figure 5. When each balance component 11 is spacedly locked on the balance ring 12, the balance components 11 can be evenly distributed along the circumferential direction of the ring groove 12a. That is to say, each second lock on the balance ring 12 The setting position of the locking structure 12b can be: when each first locking structure 112 is locked and matched with the corresponding second locking structure 12b, the angle between the two adjacent balance components 11 is approximately the same, for example, Figure 5 The two balance components 11 are symmetrically arranged along the radial center line of the annular groove 12a. Therefore, the balance device 10 itself can be maintained in a substantially balanced state, and further can adjust the balance when the inner cylinder 20 rotates at the first speed. The inner cylinder 20 plays a better balancing role.

The first locking structure 112 and the second locking structure 12b may have various structural forms. For example, one of the first locking structure 112 and the second locking structure 12b is a keyhole. The other one of the structure 112 and the second locking structure 12b includes a latch 1121 and an elastic member 1122. That is to say, the first locking structure 112 and the second locking structure 12b can be a lock hole that cooperates with the latch 1121 and the elastic member 1122. The locking structure, wherein the elastic member 1122 may be a spring, elastic silicone or other member capable of elastic deformation. The first locking structure 112 shown in Figures 4 to 6 includes a latch 1121 and an elastic member 1122, and the second locking structure 12b is a keyhole. In some embodiments, the first locking structure 112 can also be a keyhole. , the second locking structure 12b includes a latch 1121 and an elastic member 1122. The latch 1121 is inserted into or out of the lock hole by cooperating with the elastic member 1122. When the latch 1121 is inserted into the lock hole, the latch 1121 is locked with the lock hole, and the balance assembly 11 is locked on the balance ring 12. When the latch 1121 is disengaged from the lock hole, the latch 1121 Unlock with the keyhole.

The following takes the balancing device 10 shown in FIG. 1 as an example to specifically describe the manner in which the plug 1121 is inserted into or out of the lock hole by cooperating with the elastic member 1122.

Please refer to Figures 5 and 6. The annular groove 12a has a first annular side wall 121a and a second annular side wall 121b. The first annular side wall 121a is located outside the second annular side wall 121b, and the keyhole is provided on the second annular side. on wall 121b. The mass body 111 is provided with a pin hole 113a. The mass body 111 shown in Figures 4 and 10 is provided with a pin seat 113 having a pin hole 113a. The pin seat 113 is fixed on the mounting member 1111. In some embodiments, it can also be Without providing the pin seat 113, the pin hole 113a can be directly formed on the mass body 111. For example, the pin hole 113a can be directly processed on the mounting member 1111. The latch 1121 is movably inserted into the pin hole 113a, that is to say, the latch 1121 can move along the axial direction of the pin hole 113a. In addition, the elastic member 1122 in FIG. 4 and FIG. 10 is disposed in the pin hole 113a. In some embodiments, the elastic member 1122 may not be disposed in the pin hole 113a, as long as the elastic member 1122 can cooperate with the latch 1121.

Please refer to FIGS. 4 and 5 . When the balance ring 12 rotates at the first rotation speed, the latch 1121 is inserted into the lock hole. At this time, the balance component 11 is locked on the balance ring 12 .

Please refer to Figure 8. When the balance ring 12 rotates at the second speed, the latch 1121 moves along the axial direction of the pin hole 113a in the direction away from the lock hole under the action of centrifugal force, thereby being able to disengage from the lock hole and the latch 1121 from the lock hole. Squeeze the elastic member 1122 to cause elastic deformation of the elastic member 1122. After the latch 1121 is disengaged from the lock hole, each balance component 11 can move freely along the annular groove 12a.

Please refer to Figures 4 and 5. When the rotation speed of the balance ring 12 decreases from the second rotation speed to the first rotation speed, the centrifugal force decreases. When each balance component 11 moves to a position where the latch 1121 can be aligned with the corresponding keyhole. At this time, the latch 1121 can be inserted into the lock hole again by moving along the axial direction of the pin hole 113a toward the lock hole under the elastic force of the elastic member 1122.

When the rotation speed of the balance ring 12 rises from the first rotation speed to the second rotation speed next time, the latch 1121 is separated from the lock hole under the action of centrifugal force. In this way, after the rotation speed of the balance ring 12 reaches the second rotation speed, the latch 1121 can be automatically After the rotation speed of the balance ring 12 drops from the second rotation speed to the first rotation speed after being disengaged from the lock hole, the latch 1121 is automatically inserted into the lock hole.

In some embodiments, a lock hole may be provided on the mass body 111, a pin hole 113a may be provided on the first annular side wall 121a of the annular groove 12a, and the plug 1121 may be movably provided on the first annular side wall 121a. in the pin hole 113a.

There are many ways to arrange the elastic member 1122 in the pin hole 113a. For example, please refer to Figures 11 to 14. A supporting surface 113b is formed in the pin hole 113a, and part of the side wall of the plug 1121 protrudes to form a protrusion. part 1121a, the elastic member 1122 is sleeved on the latch 1121 and is located between the supporting surface 113b and the protruding part 1121a. One end of the elastic member 1122 close to the supporting surface 113b is in contact with the supporting surface 113b. Please refer to Figure 14. When the balance ring 12 rotates at the second rotation speed and the latch 1121 moves in the direction away from the lock hole along the axial direction of the pin hole 113a under the action of centrifugal force, the protruding portion 1121a squeezes the elastic member 1122, thereby , the elastic member 1122 can be elastically deformed. Referring to FIG. 12 , when the rotation speed of the balance ring 12 decreases from the second rotation speed to the first rotation speed, the elastic member 1122 can push the latch 1121 into the lock hole by pushing the protruding portion 1121 a.

In addition, the supporting surface 113b in Figure 12 is provided on the side wall of the pin hole 113a. In some embodiments, a bottom wall with a through hole can also be provided at the end of the pin hole 113a away from the lock hole, and the bottom wall serves as the supporting surface 113b. , which is equivalent to when the latch 1121 moves in the direction away from the lock hole along the axial direction of the pin hole 113a under the action of centrifugal force, a part of the latch 1121 can extend from the through hole to the outside of the pin hole 113a.

In some embodiments, the elastic member 1122 may not be set on the latch 1121. For example, the end of the pin hole 113a away from the lock hole may be set as a closed end, and the elastic member 1122 may be disposed between the closed end of the pin hole 113a and the latch 1121. Between the bottom end surfaces, it is equivalent to when the balance ring 12 rotates at the second speed and the plug 1121 moves along the axial direction of the pin hole 113a in the direction away from the lock hole under the action of centrifugal force, the bottom end surface of the plug 1121 squeezes the elastic member 1122 , when the rotational speed of the balancing ring 12 decreases from the second rotational speed to the first rotational speed, the elastic member 1122 pushes the bottom end surface of the latch 1121 to push the latch 1121 into the lock hole. However, compared with arranging the elastic member 1122 between the closed end of the pin hole 113a and the bottom end surface of the plug 1121, the elastic member 1122 is sleeved on the plug 1121, so that the plug 1121 can move in the axial direction along the pin hole 113a. can remain as stable as possible during the process, that is to say, the latch 1121 has less shaking during the axial movement along the pin hole 113a. Therefore, when the rotational speed of the balance ring 12 drops from the second rotational speed to the third After one rotation, it is easier for the latch 1121 to be smoothly inserted into the corresponding lock hole.

Further, please refer to Figures 11 to 14. A limiting surface 113c can also be formed on the side wall of the pin hole 113a. The limiting surface 113c is located between the supporting surface 113b and the protruding portion 1121a. Please refer to Figure 14. When the latch 1121 When it moves to the extreme position under the action of centrifugal force, the protruding portion 1121a contacts the limiting surface 113c. That is to say, the limiting surface 113c can play a limiting role on the latch 1121 to reduce the edge of the latch 1121 under the action of centrifugal force. The axial movement stroke of the pin hole 113a allows the latch 1121 to be inserted into the corresponding lock hole more quickly after the rotation speed of the balance ring 12 decreases from the second rotation speed to the first rotation speed.

In some embodiments, the limiting surface 113c may not be provided.

The various embodiments/implementations provided in this application can be combined with each other without conflict.

The above descriptions are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application are included in the protection scope of this application.

Claims (10)

A balancing device for use in laundry treatment equipment, comprising: At least two balance components, each of which includes a mass body and a first locking structure provided on the mass body; Balance ring, the balance ring is provided with an annular groove that accommodates the balance component and a second locking structure corresponding to each of the first locking structures; when the balance ring rotates at a first speed, each of the The first locking structure locks and cooperates with the corresponding second locking structure, so that each of the balance components is locked on the balance ring at intervals; when the balance ring rotates at the second speed, each of the balance components The first locking structure and the corresponding second locking structure are unlocked under the action of centrifugal force, so that each of the balance components can move along the annular groove; wherein the first rotation speed is lower than the third rotation speed. Two speeds. The balance device according to claim 1, when each of the balance components is locked on the balance ring at intervals, each of the balance components is evenly distributed along the circumferential direction of the ring groove. The balancing device according to claim 1 or 2, one of the first locking structure and the second locking structure is a lock hole, and the first locking structure and the second locking structure The other one includes a latch and an elastic member, and the latch is inserted into or disengaged from the lock hole by cooperating with the elastic member. The balancing device according to claim 3, the annular groove has a first annular side wall and a second annular side wall, the first annular side wall is located outside the second annular side wall, and the lock hole is provided on the second annular side wall; The mass body is provided with a pin hole, and the latch is movably inserted into the pin hole; when the balance ring rotates at the second speed, the latch is separated from the lock hole under the action of centrifugal force, and the The elastic member generates elastic deformation; when the rotation speed of the balance ring decreases from the second rotation speed to the first rotation speed, the latch is inserted into the lock hole under the elastic force of the elastic member. The balancing device according to claim 4, a supporting surface is formed in the pin hole, a part of the side wall of the plug protrudes to form a bulge, and the elastic member is sleeved on the plug and located at the position. Between the supporting surface and the protruding portion, one end of the elastic member close to the supporting surface is in contact with the supporting surface. The balancing device according to claim 5, wherein a limiting surface located between the supporting surface and the protruding portion is formed on the side wall of the pin hole. When the latch moves to the limit under the action of centrifugal force, position, the protruding portion is in contact with the limiting surface. According to the balancing device of claim 1, the mass body includes a mounting part and a ball, and the ball is disposed on the mounting part. The balancing device according to claim 7, wherein a ball groove is provided on the mounting member, and the ball is rotatably disposed in the ball groove and can roll in the annular groove. A cylinder device includes: an inner cylinder, an outer barrel and the balancing device according to any one of claims 1 to 8; the balancing ring is connected to the inner cylinder and surrounds the opening side of the inner cylinder. A laundry treatment device, comprising: the barrel device according to claim 9.

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