A drum hoop of a laundry treating apparatus, a drum assembly of a laundry treating apparatus, and a laundry treating apparatus

Abstract

The present application belongs to the technical field of clothes processing equipment, and discloses a drum hoop, a drum assembly and clothes processing equipment, wherein the drum hoop has a hoop ring and a brake part protruding from the outer ring surface of the hoop ring; the radial dimension of the hoop ring is increased to drive the brake part to move away from the outer ring surface of the hoop ring. When the drum hoop is applied to clothes processing equipment and is sleeved on the inner drum, if the inner drum bursts, the hoop ring will be impacted to expand its radial dimension, at which time the brake part can move outward, on the one hand, to absorb part of the impact force and buffer the bursting speed, and on the other hand, to contact the inner circumferential wall of the outer drum, so as to utilize the friction resistance between the brake part and the inner circumferential wall of the outer drum to rapidly decelerate the inner drum, thereby ensuring the safety in use.

Description

Technical Field

[0001] This invention belongs to the technical field of clothing processing equipment, specifically, it relates to a clothing processing equipment including a hoop, a cylinder assembly, and the clothing processing equipment itself. Background Technology

[0002] Drum-type garment processing equipment, such as drum washing machines, has become an indispensable household appliance in daily life. With the accelerating pace of life and the improvement of living standards, people have higher and higher requirements for washing and cleaning, and there are more and more scenarios where clothes are dried immediately after washing, with the requirement that the drying speed be as fast as possible.

[0003] The washing principle of a front-loading washing machine is to use tumbling to bend and loosen the fibers, thus achieving a cleaning effect. Based on this principle, the simplest and quickest way to improve cleaning power is to increase the tumbling distance, which in the case of a front-loading washing machine means increasing the drum diameter. A major factor affecting drying speed is the moisture content of the clothes to be dried. To improve drying speed, the moisture content of the clothes needs to be as low as possible, and the best way to reduce moisture content is to increase the spin speed.

[0004] Therefore, one development trend of drum washing machines is to continuously increase the inner drum diameter, while another trend is to continuously increase the spin speed. However, when feeding and spinning the same weight of clothes, a larger drum diameter and a higher spin speed result in greater centrifugal force, which places higher demands on the strength of the inner drum.

[0005] The commonly used inner drum material is 430 stainless steel. When users overload the washing machine, such as when the total weight of the laundry exceeds the rated capacity or when washing non-clothing high-density items, the inner drum may not be able to withstand the tearing force of centrifugal force, causing it to burst. If the burst happens to occur at the top of the inner drum, the counterweight above the drum may break through the top wooden countertop, endangering the user's safety.

[0006] Due to production cost considerations, it is often difficult to use high-strength materials, which are more expensive, for the entire inner cylinder. To address this, existing technology proposes a method of fitting a cuff around the outer side of the inner cylinder. This cuff has pleats that can be straightened when a burst is imminent, thus cushioning the impact and reducing the damage. However, because the pleats are easily straightened, this solution only cushions part of the damage from a burst and does not directly strengthen the inner cylinder, failing to prevent a burst altogether. Since the inner cylinder is typically rotating at high speed during a burst, the limited cushioning effect of the cuff structure still poses a safety hazard.

[0007] In view of this, the present invention is hereby proposed. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art. The first aspect is to provide a cuff for a garment processing device that can buffer the bursting speed when the inner cylinder bursts, thereby ensuring safe use.

[0009] A second aspect of the present invention provides a cylinder assembly of a garment processing device having the aforementioned cylinder hoop. When the inner cylinder bursts, the contact friction between the cylinder hoop and the outer cylinder can provide rotational resistance, thereby achieving the effect of rapid deceleration of the inner cylinder and further improving safety and reliability.

[0010] A third aspect of the present invention provides a garment processing apparatus having the above-described tube assembly.

[0011] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0012] A hoop for a garment processing device, comprising a hoop ring and a braking portion protruding from the outer annular surface of the hoop ring;

[0013] The radial dimension of the hoop increases, causing the braking part to move away from the outer ring surface of the hoop.

[0014] Furthermore, one end of the braking part is connected to the hoop and extends close to the outer ring surface of the hoop;

[0015] The radial dimension of the hoop increases, causing the braking part to rotate away from the outer ring surface of the hoop;

[0016] Preferably, at least two braking parts are provided at intervals along the circumference of the hoop, and each braking part extends close to the outer ring surface of the hoop in a clockwise direction or in a counterclockwise direction.

[0017] Furthermore, the braking part is an overlapping structure in which the body of the hoop partially protrudes outward and extends close to the outer ring surface of the hoop.

[0018] Furthermore, the overlapping structure is a two- or multi-layer overlapping structure with at least one bend;

[0019] Preferably, the outwardly protruding portion of the hoop body is bent two or more times toward the same side to form a multi-layered overlapping structure;

[0020] Preferably, the overlapping structure bends towards the hoop from a position protruding from the outer ring surface of the hoop, so as to extend close to the outer ring surface of the hoop;

[0021] The bending direction of the overlapping structure toward the hoop is the same as the bending direction of the overlapping structure itself.

[0022] Furthermore, the hoop extends integrally to form the cylindrical hoop;

[0023] The braking part is an overlapping structure in which a portion of the hoop body protrudes outward, is folded, and bent to extend close to the outer ring surface of the hoop.

[0024] Preferably, the body of the hoop is bent once or multiple times in the outward convex folded portion, and then bent again to extend close to the outer ring surface of the hoop.

[0025] Furthermore, the ferrule is formed by connecting at least two ferrules in sequence, and the braking part is formed at the connection of two adjacent ferrules;

[0026] Preferably, the braking part is an overlapping structure in which two adjacent hoop rings protrude outward at their connection and extend in the same direction close to the outer ring surface of the hoop ring;

[0027] More preferably, the ends of two adjacent hoops extend outward at their connection point, bend together once or multiple times, and then bend to extend close to the outer ring surface of the hoop.

[0028] More preferably, the two adjacent hoops extend outward to different lengths at their joint, with the end of one hoop folded over to surround the end of the other hoop.

[0029] Furthermore, the inner ring surface of the hoop has a plurality of protrusions spaced apart circumferentially.

[0030] A cylindrical assembly for a garment processing device, characterized in that it includes an outer cylinder and an inner cylinder, wherein the inner cylinder is fitted with a ferrule as described above for the garment processing device;

[0031] In the initial state, the braking part of the cylinder hoop is spaced apart from the inner circumferential wall of the outer cylinder;

[0032] When the radial dimension of the hoop increases, the braking part contacts the inner circumferential wall of the outer cylinder, providing rotational resistance to the inner cylinder.

[0033] Furthermore, the inner ring surface of the hoop has a plurality of protrusions spaced apart along the circumferential direction;

[0034] In the initial state, the protrusion is in a limiting fit with the inner cylinder wall;

[0035] Preferably, the protrusion is a dot-shaped protrusion on the inner annular surface of the hoop; the inner cylinder wall has a water passage hole, and the protrusion is confined within the water passage hole.

[0036] A garment processing device, characterized in that it has a tubular assembly of the garment processing device described above;

[0037] Preferably, one end of the braking part is connected to the hoop; when the radial dimension of the hoop increases, the braking part rotates toward the inner circumferential wall of the outer cylinder;

[0038] The rotation direction of the braking part is the same as the rotation direction of the inner cylinder during dehydration;

[0039] Preferably, the garment processing device has a drive motor for driving the inner drum to rotate;

[0040] When the main control module of the garment processing equipment detects that the operating current of the drive motor exceeds the current threshold, it controls the drive motor to shut down.

[0041] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0042] In this invention, when the inner cylinder bursts, the radial dimension of the hoop expands under the impact force of the burst, which can drive the braking part to move outward. The outward movement of the braking part absorbs part of the impact force and can buffer the burst speed. In addition, after the braking part contacts the inner circumferential wall of the outer cylinder, the frictional resistance between the braking part and the inner circumferential wall of the outer cylinder can make the inner cylinder decelerate quickly, ensuring safe use.

[0043] In this invention, the protrusion on the inner side of the cylinder hoop engages with the inner cylinder wall, effectively pressing the portion of the cylinder wall located between the two protrusions. When the centrifugal force on the cylinder wall locally exceeds the maximum withstand limit of the inner cylinder material, the cylinder hoop can reinforce the inner cylinder, preventing it from bursting directly. This increases the centrifugal force limit that the inner cylinder can withstand, thus mitigating the risk of cylinder bursting to some extent.

[0044] In this invention, the main control module of the garment processing equipment can detect the inner drum bursting based on the operating current of the drive motor and promptly control the drive motor to shut down. Combined with the frictional resistance provided by the contact between the braking part of the drum hoop and the inner circumferential wall of the outer drum, the inner drum can be stopped as soon as possible, minimizing the safety hazard of the drum bursting.

[0045] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0046] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0047] Figure 1 This is a schematic diagram of the assembly of the inner cylinder and the cylinder hoop in an embodiment of the present invention;

[0048] Figure 2 This is a schematic diagram of the structure of the hoop in an embodiment of the present invention;

[0049] Figure 3 This is an enlarged schematic diagram of a specific structure of the braking part in an embodiment of the present invention;

[0050] Figure 4 This is a partial cross-sectional view of the hoop at the protrusion in an embodiment of the present invention;

[0051] Figure 5 This is a schematic diagram of the structure of the clothing processing device in an embodiment of the present invention (in normal operating condition);

[0052] Figure 6 This is a schematic diagram of the clothing processing device in an embodiment of the present invention (bursting state).

[0053] In the diagram: 100, housing; 210, suspension shock absorber; 220, damper; 300, outer cylinder; 400, inner cylinder; 500, cylinder hoop; 510, hoop ring; 511, protrusion; 512, gap; 520, braking part; 521, first bend; 522, second bend; 523, third bend; 524, fourth bend; 525, fifth bend; 600, counterweight.

[0054] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0056] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0057] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0058] like Figures 1 to 6 As shown, an embodiment of the present invention provides a ferrule 500 for a garment processing device, a ferrule assembly having the ferrule 500, and a garment processing device having the ferrule assembly. The garment processing device is a household appliance with a garment washing function, such as a washing machine or a washer-dryer combo.

[0059] Specifically, in this embodiment, the garment processing equipment is a drum-type garment processing equipment, which has a drum assembly with its axis arranged in a basically horizontal direction. The drum assembly includes an inner drum 400 and an outer drum 300 arranged coaxially, and the inner drum 400 can rotate inside the outer drum 300.

[0060] During washing, the load inside the drum is lifted to a certain height as the inner drum 400 rotates, and then falls downwards, creating a tumbling effect that cleans the load. During spin-drying, the centrifugal force generated by the high-speed rotation of the inner drum 400 presses the load firmly against the drum wall. The clothes are blocked by the inner drum 400, and the water in the clothes passes through the clothes and the water passages of the inner drum 400 under the action of centrifugal force, splashing onto the inner wall of the outer drum 300, thus achieving the dehydration effect.

[0061] In a more specific structure, the garment processing equipment includes a housing 100, and the outer cylinder assembly is disposed within the housing 100. The outer cylinder 300 is disposed inside the housing 100 via a vibration damping device. In one specific embodiment, the vibration damping device includes a suspension damper 210 and a damper 220. The suspension damper 210 is disposed above the outer cylinder 300, with its upper end connected to the top region of the housing 100 and its lower end connected to the upper region of the outer cylinder 300. The damper 220 is disposed below the outer cylinder 300, with its upper end hinged to the lower region of the outer cylinder 300 and its lower end hinged to the bottom wall of the housing 100. Through the coordinated action of the suspension damper 210 and the damper 220, a better vibration damping effect can be achieved.

[0062] The top of the outer drum 300 is connected to a counterweight 600. When the garment processing equipment is running, especially during the dehydration stage when the inner drum 400 is rotating at high speed, the outer drum 300 and the counterweight 600 together have a large mass, which can effectively reduce the vibration amplitude of the outer drum 300.

[0063] In this embodiment of the garment processing equipment, during the high-speed rotation and dehydration stage of the inner drum 400, the load inside the drum is subjected to a large centrifugal force, generating a significant tensile force on the drum wall. When the garment processing equipment operates under overload, the centrifugal force may become excessive, potentially causing the inner drum 400 to burst due to the tearing force. In severe cases, the impact of the bursting inner drum 400 may cause the counterweight 600 at the top of the outer drum 300 to be ejected, endangering the user's personal safety.

[0064] To address the aforementioned issues, this embodiment incorporates a cylinder hoop 500 fitted onto the inner cylinder 400 wall. This hoop can buffer the impact of the explosion during a burst, while simultaneously helping the inner cylinder 400 decelerate, thereby avoiding safety hazards and ensuring user safety.

[0065] Specifically, in this embodiment, the cylinder hoop 500 has a hoop ring 510 and a braking part 520 protruding from the outer ring surface of the hoop ring 510. When the cylinder explodes, the inner side of the cylinder hoop 500 is subjected to a large impact force, causing the hoop ring 510 to deform and its radial dimension to increase, which can drive the braking part 520 to move away from the outer ring surface of the hoop ring 510.

[0066] The cylinder assembly in this embodiment includes the aforementioned cylinder clamp 500. In the initial state during operation of the garment processing equipment, i.e., when the garment processing equipment is operating normally and no cylinder bursting occurs, see [reference needed]. Figure 5 The braking part 520 is positioned close to the outer ring surface of the hoop 510 and is spaced apart from the inner circumferential wall of the outer cylinder 300, so as not to affect the normal rotation of the inner cylinder 400.

[0067] However, if the garment processing equipment is overloaded and a bursting cylinder occurs, such as Figure 6 As shown, the braking part 520 moves away from the hoop 510, which can absorb part of the impact force generated by the explosion tube and buffer the explosion speed of the inner cylinder 400. At the same time, the braking part 520 moving outward can contact the inner peripheral wall of the outer cylinder 300. At this time, the cylinder hoop 500 still rotates synchronously with the inner cylinder 400, and the braking part 520 will rub against the inner peripheral wall of the outer cylinder 300, thereby providing rotational resistance to the inner cylinder 400 and helping the inner cylinder 400 to decelerate quickly and reach a safe range.

[0068] In one specific implementation, the cylinder hoop 500 is located in the central region of the inner cylinder 400 along its axial direction. Since flanges are located at both the front and rear ends of the inner cylinder 400, and the cylinder wall and flanges are assembled using various reinforcement processes such as riveting and welding, the structure boasts high strength. Simultaneously, during the dehydration stage, the load inside the cylinder is blocked by the rear flange and the observation window glass on the front door, primarily concentrating in the central region of the inner cylinder 400 along its axial direction. Therefore, this area requires concentrated reinforcement.

[0069] In a further embodiment, one end of the braking part 520 is connected to the hoop 510 and extends close to the outer ring surface of the hoop 510. When the radial dimension of the hoop 510 increases, the braking part 520 can rotate around the end connected to the hoop 510 in a direction away from the outer ring surface of the hoop 510, causing the braking part 520 to rotate from a position extending close to the outer ring surface of the hoop 510 to a position extending inclined outward, thereby increasing the overall radius of rotation of the cylindrical hoop 500.

[0070] After the braking part 520 rotates a certain angle away from the outer ring surface of the hoop 510, the other end of the braking part 520 comes into contact with the inner circumferential wall of the outer cylinder 300, which can play a braking role and drive the inner cylinder 400 to decelerate quickly to a safe range.

[0071] It should be noted that in this embodiment, the braking part 520 extending close to the outer ring surface of the hoop 510 means that the extending direction of the braking part 520 is close to the extending direction of the outer ring surface of the hoop 510. The braking part 520 can be in close contact with the outer ring surface of the hoop 510, or there can be a certain gap.

[0072] In one specific embodiment, the braking part 520 extends circumferentially along the outside of the hoop 510, that is, the extension trajectory of the braking part 520 is arc-shaped.

[0073] In another specific embodiment, the extending direction of the braking part 520 is substantially the tangential direction of the hoop 510 at the position where it connects to the braking part 520. The extending direction of the braking part 520 may be inclined outwards by 0° to 5° relative to the tangential direction.

[0074] In this embodiment, the extension length of the braking part 520 is greater than the interval between the inner cylinder 400 and the outer cylinder 300, ensuring that the braking part 520 can contact the inner peripheral wall of the outer cylinder 300 before it flips outward to a completely upright position (i.e., extending radially), thus ensuring an effective braking effect.

[0075] Furthermore, two or more braking parts 520 are arranged at intervals along the circumference of the hoop 510, and each braking part 520 is preferably evenly distributed along the circumference of the hoop 510. In this way, when a cylinder explosion occurs, multiple braking parts 520 simultaneously contact the inner circumferential wall of the outer cylinder 300, providing rotational resistance at multiple positions in the circumferential direction at the same time, resulting in higher deceleration efficiency.

[0076] It should be noted that in this embodiment, when two or more braking parts 520 are provided, each braking part 520 extends close to the outer ring surface of the hoop 510 in a clockwise direction, or extends close to the outer ring surface of the hoop 510 in a counterclockwise direction.

[0077] Furthermore, when the braking unit 520 is driven to flip outward, its rotation direction is the same as the rotation direction of the inner cylinder 400 in the dehydration stage. Thus, combined with... Figure 6 As shown in the diagram, the dashed arrow represents the rotation direction of the inner cylinder 400. When the braking part 520 rotates outward and tilts to contact the outer cylinder 300, its extension direction is in the same direction as the rotation direction. This avoids the problem of the outer cylinder 300 seizing with the inner cylinder 400 through the cylinder clamp 500, and also prevents the braking part 520 from causing excessive wear on the inner circumferential wall of the outer cylinder 300, thus preventing damage to the outer cylinder and ensuring that the outer cylinder 300 can continue to be used. In addition, it can also prevent the braking part 520 from generating excessive noise after contacting the outer cylinder 300.

[0078] In a further embodiment, the braking part 520 is an overlapping structure in which the body of the hoop 510 partially protrudes outward and extends close to the outer ring surface of the hoop 510.

[0079] Using the above structure, see [link / reference] Figure 3 The hoop 510 has a certain gap 512 along the circumference at the position where the braking part 520 is formed by the protrusion. When the cylinder explodes and the inner side of the cylinder hoop 500 is subjected to a large impact, the radial dimension of the hoop 510 as a whole increases, which increases the width of the gap 512. At this time, the end of the braking part 520 connected to the hoop 510 will be stretched and deformed, thereby causing the braking part 520 to flip outward away from the outer ring surface of the hoop 510 until the other end of the braking part 520 abuts against the inner circumferential wall of the outer cylinder 300.

[0080] In this embodiment, the hoop 510 is formed from a long strip of metal sheet with a certain width. The body of the hoop 510 protrudes outward in a partial manner, thus forming an overlapping structure with at least two layers of metal sheets. In other words, the braking part 520 is composed of an overlapping structure with at least two layers of metal sheets.

[0081] In a further embodiment, the overlapping structure constituting the braking part 520 is a two- or multi-layer overlapping structure with at least one bend. Specifically, when the overlapping structure has at least two bends, the portion of the hoop 510 that partially protrudes outwards from the body is bent two or more times toward the same side.

[0082] The aforementioned bending refers to bending two overlapping metal sheets together. Bending towards the same side means that the structure undergoing bending is approximated as a sheet-like structure, and when viewed from the side of the sheet-like structure, each bend is directed towards the same side of the sheet-like structure.

[0083] In one specific embodiment, after a portion of the body of the hoop 510 protrudes outward, the protruding portion is bent once, or bent two or more times toward the same side. In the case of bending twice or more, the length of the bent portion is basically the same each time, so that the braking part 520 has a multi-layered overlapping structure with a double-layered metal sheet spiral extension.

[0084] The multi-layered overlapping structure that has completed the bending is located at a position close to the outer ring surface of the hoop 510 along the radial direction. At this time, the multi-layered overlapping structure bends further toward the hoop 510 in the same bending direction, thus extending close to the outer ring surface of the hoop 510.

[0085] In the above scheme, the braking part 520 is a multi-layered overlapping structure of metal sheets, giving it high structural strength. The braking part 520 can rotate around one end of its connecting ring 510, but the braking part 520 itself, especially in the extending direction, undergoes virtually no deformation. Thus, when the braking part 520 flips outward, its end can stably contact the inner wall of the outer cylinder 300, providing stable friction to decelerate the inner cylinder 400, without causing the braking part 520 to deform and rapidly decrease the friction, or even separating from the inner wall of the outer cylinder 300 and failing to provide friction.

[0086] In this embodiment, as a specific implementation, the hoop 510 extends integrally to form a cylindrical hoop 500. That is, the cylindrical hoop 500 is a ring formed by connecting the ends of a hoop 510, and a braking part 520 is partially protruded outward.

[0087] Specifically, in the above structure, the body of the hoop protrudes outward in part and is folded in half, and then bent to extend close to the outer ring surface of the hoop, thereby forming a braking part.

[0088] In one specific structure, the outwardly bulging and folded portion of the hoop body is bent directly toward the outer ring surface of the hoop to extend close to the outer ring surface of the hoop, forming the braking part.

[0089] In another specific structure, the main body of the hoop folds outwards in a convex section, bending itself once or multiple times before bending it again to a position close to the outer ring surface of the hoop. In the above structure, each bend is directed towards the same side of the convex portion.

[0090] In the above scheme, the two ends of the hoop 510 can overlap circumferentially for a certain length for fixed connection. Specifically, the two ends of the hoop 510 are fixedly connected by fasteners, such as rivets.

[0091] In another specific embodiment, the hoop 500 is formed by connecting at least two hoop rings 510 in sequence, and the braking part 520 is formed at the connection of two adjacent hoop rings 510.

[0092] In the above scheme, the hoop 500 is a ring formed by two or more hoop rings 510 connected in sequence. At the position where each hoop ring 510 is connected, the end area of ​​the hoop ring 510 is used to form a braking part 520.

[0093] Specifically, two adjacent hoop rings 510 protrude outward at their connection point and extend in the same direction close to the outer ring surface of the hoop ring 510 to form an overlapping structure, thereby forming a braking part 520 on the outside of the hoop ring 510.

[0094] Furthermore, two adjacent hoop rings 510 are connected by a braking part 520 without the need for additional fixing. In one specific structure, the adjacent ends of the two hoop rings 510 extend outwards respectively, and the outwardly extending parts are bent together once or multiple times, and then bent to extend close to the outer ring surface of the hoop ring 510, thus forming the braking part 520.

[0095] Using the above scheme, the two ends of the clamp 510 are mutually restrained by bending together. During normal operation of the garment processing equipment, the clamp 510 will not break at the connection point, thus eliminating the need for additional fixing. However, in the event of a burst, causing adjacent clamps 510 to tend to separate, the end of the brake part 520 connected to the clamp 510 will first bend and deform, causing the brake part 520 to fold outwards. After the other end of the brake part 520 contacts the inner circumferential wall of the outer cylinder 300, the outer cylinder 300 can restrict the brake part 520 from further unfolding. Therefore, even in the event of a burst, the clamp 510 will not break at the connection point, ensuring the reliability of the clamp 500.

[0096] In the preferred structure, the adjacent ends of the two hoop rings 510 extend outward to different lengths, and the end of one hoop ring 510 is folded over to surround the end of the other hoop ring 510.

[0097] With the above structure, the metal sheets belonging to the two adjacent hoop rings 510 are alternately distributed in the multi-layered overlapping structure of the brake part 520 after molding, which has a better limiting effect and a more stable overall structure of the hoop 500.

[0098] As a detailed structure, combined Figure 3 As shown, the braking part 520 is a structure of five overlapping metal sheets.

[0099] Specifically, at the connection between two adjacent hoops 510, the upper hoop 510 has a first bend 521, a second bend 522, and a third bend 523 extending towards the end and connected in sequence. The first bend 521 forms the side of the braking part 520 facing outwards, the second bend 522 forms the side of the braking part 520 facing the outer ring surface of the hoop 510, and the third bend 523 bends between the first bend 521 and the second bend 522. The lower hoop 510 has a fourth bend 524 and a fifth bend 525 extending towards the end and connected in sequence. The fourth bend 524 extends between the first bend 521 and the third bend 523, and the fifth bend 525 extends between the second bend 522 and the third bend 523.

[0100] When the braking part 520 of the above structure is formed, the ends of the two hoop rings 510 are bent and extended outwards, with the upper hoop ring 510 having a longer extension length. Its end is folded over to surround the end of the lower hoop ring 510, and the folded-over portion of the upper hoop ring 510 forms the third bent part 523. Then, the portion extending beyond the outer ring surface of the hoop ring 510 is bent downwards once, and then bent downwards at the end connected to the outer ring surface of the hoop ring 510 until it extends close to the outer ring surface of the hoop ring 510. After each bend, or after all bending processes are completed, a pressing process is also performed to ensure structural stability.

[0101] In this embodiment, the hoop 510 is integrally extended to form a cylindrical hoop 500. At the connection between the two ends of the hoop 510, the structure of forming a braking part 520 at the connection between the two hoop 510 can also be adopted. In this way, it is not necessary to make additional fixed connections to the two ends of the hoop 510.

[0102] In a further embodiment, the inner annular surface of the hoop 510 has a plurality of protrusions 511 spaced apart circumferentially. Initially, the protrusions 511 are engaged with the wall of the inner cylinder 400. During operation of the garment processing equipment, when the wall of the inner cylinder 400 between two protrusions 511 is subjected to excessive centrifugal force and tends to expand and crack, the engagement between the protrusions 511 and the wall of the inner cylinder 400 can reinforce the inner cylinder 400, thereby pressing it down to prevent direct cracking.

[0103] In one specific embodiment, the protrusion 511 protrudes in a dot-like manner on the inner annular surface of the hoop 511. When the cylinder hoop 500 is fitted onto the inner cylinder 400, the protrusion 511 is confined within the water passage hole (not shown in the figure) on the cylinder wall of the inner cylinder 400.

[0104] Specifically, in this embodiment, the protrusions 511 are provided on the area of ​​the hoop 510 that does not protrude to form the braking part 520, and multiple protrusions are provided circumferentially. The size of the protrusions 511 is adapted to the diameter of the water passage holes on the inner cylinder 400 wall, so that they can extend into and be confined within the water passage holes. The protrusions 511 are preferably closed and smooth structures, which can prevent some of the abrasive clothing from being exposed to the inside of the inner cylinder 400 through the water passage holes.

[0105] By setting dot-shaped protrusions 511, each protrusion 511 can extend into a water passage hole. During the operation of the garment processing equipment, when the centrifugal force on the inner cylinder 400 wall between two protrusions 511 is slightly higher than the stress limit of the cylinder wall material, the limiting fit between the protrusions 511 and the inner cylinder 400 wall can strengthen the inner cylinder 400, thereby pressing the inner cylinder 400 to prevent it from cracking. Only when the centrifugal force is extremely large will the protrusions 511 detach from the water passage hole, causing the inner cylinder 400 to tear. At this time, the braking part 520 on the outside of the hoop 510 will be stretched and flipped outward, thereby contacting and rubbing against the inner peripheral wall of the outer cylinder 300. The friction force is used to quickly decelerate the inner cylinder 400 to a safe range, avoiding the problem of the inner cylinder 400 bursting and causing injury.

[0106] In this embodiment, the inner drum 400 is connected to a drive motor, which drives the inner drum 400 to rotate. In a further embodiment, the main control module of the garment processing equipment can control the drive motor to shut down in the event of the inner drum 400 bursting. Combined with the frictional resistance between the braking part 520 and the inner peripheral wall of the outer drum 300, the inner drum 400 can be stopped quickly, minimizing safety hazards.

[0107] Specifically, in this embodiment, when the main control module detects that the operating current of the drive motor exceeds a preset current threshold, it controls the drive motor to shut down. The current threshold is the maximum operating current that the drive motor may reach during normal dehydration of the garment processing equipment, or slightly greater than the maximum operating current.

[0108] When the inner cylinder 400 tears and bursts, the braking part 520 flips outward and rubs against the inner circumferential wall of the outer cylinder 300. This causes the running resistance of the drive motor to increase immediately, and the output speed to decrease, which is equivalent to the drive motor stalling. At this time, the drive motor will use a larger operating current to overcome the running resistance, resulting in a significant increase in its operating current. Furthermore, with the drive motor's external output power remaining unchanged, the current cannot do work through the magnetic field, so it will do work through heat.

[0109] Therefore, if the main control module of the washing machine suddenly detects an abnormal increase in the operating current of the drive motor during the high-speed spin-drying process, it can immediately cut off the power supply to the drive motor. Under the friction braking action of the braking unit 520, the inner drum 400 will quickly stop rotating.

[0110] When the garment processing equipment with the 500 hoop provided in this embodiment is used, the specific working process is as follows.

[0111] When the garment processing equipment is running, the inner drum 400 is driven to rotate by the drive motor. When the centrifugal force on the inner drum 400 is within the tolerable range, the braking part 520 on the drum hoop 500 remains close to the outer ring surface of the hoop 510 and does not contact the outer drum 300, thus not affecting the normal rotation of the inner drum 400.

[0112] During the high-speed dehydration stage, when the centrifugal force on the area between the two protrusions 511 of the inner cylinder 400 is slightly higher than the tolerable range, causing the area to tend to expand and crack, the protrusions 511 limit the inner cylinder 400 wall so that the cylinder hoop 500 can take over to ensure the reinforcement of the inner cylinder 400.

[0113] When the centrifugal force significantly exceeds the withstand range of the inner cylinder 400, the protrusion 511 dislodges from the water passage, causing the inner cylinder 400 to burst. This bursts, impacting the outer cylinder band 500, increasing the radial dimension of the band 510, and further stretching and deforming the end of the braking part 520 connected to the band 510, causing the braking part 520 to flip outward. The outward flipping of the braking part 520 absorbs some of the impact force, buffering the bursting speed of the inner cylinder 400. After the other end of the braking part 520 contacts the inner circumferential wall of the outer cylinder 300, it also acts as a friction brake, rapidly decelerating the rapidly rotating inner cylinder 400.

[0114] Simultaneously, when the braking unit 520 rubs against the inner circumferential wall of the outer drum 300, the operating current of the drive motor rapidly increases to above the preset current threshold. The main control module of the garment processing equipment monitors the operating current of the drive motor in real time. When the monitored operating current exceeds the current threshold, it controls the drive motor to cut off power. At this time, the power to drive the inner drum 400 to rotate disappears, and the friction between the braking unit 520 and the inner circumferential wall of the outer drum 300 provides resistance, causing the inner drum 400 to stop quickly, ensuring user safety.

[0115] The ferrule 500 provided in this embodiment can strengthen the inner cylinder 400 wall by using the limiting cooperation between the protrusion 511 and the water passage hole, thereby increasing the centrifugal force limit that the inner cylinder 400 can withstand and avoiding cylinder explosion to a certain extent. When the centrifugal force is too large and causes the inner cylinder 400 to burst, the braking part 520 on the ferrule 500 moves outward, which can absorb part of the impact force and buffer the bursting speed. At the same time, the braking part 520 can also use friction with the inner peripheral wall of the outer cylinder 300 to quickly reduce the rotational speed of the inner cylinder 400 to a safe range, minimizing the safety hazards caused by cylinder explosion.

[0116] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A hoop for a garment processing device, characterized in that, It has a hoop (510) and a braking part (520) protruding from the outer ring surface of the hoop (510); The radial dimension of the hoop (510) increases, causing the braking part (520) to move away from the outer ring surface of the hoop (510).

2. The hoop of the garment processing equipment according to claim 1, characterized in that, One end of the braking part (520) is connected to the hoop (510) and extends close to the outer ring surface of the hoop (510); The radial dimension of the hoop (510) increases, causing the braking part (520) to rotate away from the outer ring surface of the hoop (510); Preferably, at least two braking parts (520) are provided at circumferential intervals along the hoop (510), and each braking part (520) extends close to the outer ring surface of the hoop (510) in a clockwise direction or in a counterclockwise direction.

3. The hoop of the garment processing equipment according to claim 2, characterized in that, The braking part (520) is an overlapping structure in which the body of the hoop (510) partially protrudes outward and extends close to the outer ring surface of the hoop (510).

4. The hoop of the garment processing equipment according to claim 3, characterized in that, The overlapping structure is a two- or multi-layer overlapping structure with at least one bend; Preferably, the outwardly protruding portion of the main body of the hoop (510) is bent two or more times toward the same side to form a multi-layered overlapping structure; Preferably, the overlapping structure bends toward the hoop (510) from a position protruding from the outer ring surface of the hoop (510) to extend close to the outer ring surface of the hoop (510); The bending direction of the overlapping structure toward the hoop (510) is the same as the bending direction of the overlapping structure itself.

5. The hoop of the garment processing equipment according to claim 3 or 4, characterized in that, The hoop (510) extends integrally to form the cylindrical hoop (500); The braking part (520) is an overlapping structure in which a portion of the body of the hoop (510) protrudes outward, is folded, and bent to extend close to the outer ring surface of the hoop (510); Preferably, the body of the hoop (510) is bent once or multiple times after the outward bulge is folded, and then bent again to extend close to the outer ring surface of the hoop (510).

6. The hoop of the garment processing equipment according to claim 3 or 4, characterized in that, The ferrule (500) is formed by connecting at least two ferrules (510) in sequence, and the braking part (520) is formed at the connection of two adjacent ferrules (510); Preferably, the braking part (520) is an overlapping structure in which two adjacent hoop rings (510) protrude outward at the connection between them and extend close to the outer ring surface of the hoop ring (510) in the same direction; More preferably, the ends of two adjacent hoop rings (510) extend outward at the connection point, bend together once or multiple times, and then bend to extend close to the outer ring surface of the hoop ring (510). More preferably, the two adjacent hoops (510) extend outward to different lengths at their joints, with the end of one hoop (510) folded over to surround the end of the other hoop (510).

7. The hoop of the garment processing equipment according to any one of claims 1-6, characterized in that, The inner ring surface of the hoop (510) has a plurality of protrusions (511) distributed circumferentially.

8. A drum assembly for a garment processing device, characterized in that, It includes an outer cylinder (300) and an inner cylinder (400), wherein the inner cylinder (400) is fitted with a hoop (500) of the garment processing device as described in any one of claims 1-7; In the initial state, the braking part (520) of the cylinder hoop (500) is spaced apart from the inner peripheral wall of the outer cylinder (300); When the radial dimension of the hoop (510) increases, the braking part (520) contacts the inner peripheral wall of the outer cylinder (300) and provides rotational resistance to the inner cylinder (400).

9. The drum assembly of the garment processing equipment according to claim 8, characterized in that, The inner ring surface of the hoop (510) has a plurality of protrusions (511) distributed circumferentially at intervals. In the initial state, the protrusion (511) is in a limiting fit with the cylinder wall of the inner cylinder (400); Preferably, the protrusion (511) protrudes in a dotted manner on the inner annular surface of the hoop (510); the inner cylinder (400) has a water passage hole in its cylinder wall, and the protrusion (511) is confined in the water passage hole.

10. A garment processing device, characterized in that, The garment processing apparatus has a tube assembly as described in claim 8 or 9; Preferably, one end of the braking part (520) is connected to the hoop (510); when the radial dimension of the hoop (510) increases, the braking part (520) rotates toward the inner peripheral wall of the outer cylinder (300); The rotation direction of the braking part (520) is the same as the rotation direction of the inner cylinder (400) during dehydration; Preferably, the garment processing device has a drive motor for driving the inner drum (400) to rotate; When the main control module of the garment processing equipment detects that the operating current of the drive motor exceeds the current threshold, it controls the drive motor to shut down.

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