Negative-pressure line chip collecting device and washing machine thereof

Abstract

The invention belongs to the technical field of electric appliances, particularly relates to a negative-pressure line scrap collecting device and a washing machine thereof, and aims to solve the technical problem of low collecting efficiency of line scrap collecting devices in related technologies. The invention provides a negative-pressure line chip collecting device which comprises a shell, an accommodating cavity is formed in the shell, a water inlet pipe and a water outlet pipe which are communicated with the shell are arranged on the shell, a suction valve is arranged in the water inlet pipe, a discharge valve is arranged in the water outlet pipe, and a filtering part used for filtering line chips is arranged in the water outlet pipe; at least part of the negative pressure mechanism is arranged in the shell, and the negative pressure mechanism is used for generating negative pressure in the containing cavity so that water in a barrel of the washing machine can be sucked in through the water inlet pipe and discharged through the water outlet pipe. Water in the cylinder body is sucked and filtered for multiple times, so that the collection rate of thread scraps is improved.

Description

Technical Field

[0001] This application belongs to the technical field of electrical appliances, and particularly relates to a negative-pressure lint collection device and a washing machine thereof. Background Art

[0002] The pulsator washing machine is a type of washing machine. The pulsator is driven by an electric motor to rotate, and the clothes tumble up and down with the water. There are several types of washing machines, including single-barrel, double-barrel, and nested-barrel. The bottom of the pulsator washing machine barrel is equipped with a disc pulsator with protruding ribs. Driven by the pulsator, the water flow in the barrel forms a vortex that rotates right and left alternately, driving the fabric to rotate and tumble, so that the dirt on the clothes can be removed.

[0003] The washing machines in the related art include a housing. A cylinder is rotatably arranged inside the housing, and a top cover for closing the housing is hingedly arranged on the housing. In order to collect the lint in the water when the cylinder rotates to clean the clothes and prevent the lint in the water from blocking the water outlet pipe of the washing machine, a lint collection device is arranged on the inner wall of the cylinder. The lint collection device includes a housing detachably connected to the inner wall of the cylinder. The housing is provided with a water inlet and a water outlet. A filter screen is sealed inside the housing. When the cylinder rotates, the water in the cylinder can enter through the water inlet and discharge through the water outlet, so that the filter screen inside the housing filters and collects the lint in the water.

[0004] However, the above-mentioned lint collection device needs to wait for the water flow to drive the lint into the housing to collect the lint. The lint located at the edge of the cylinder is relatively easy to enter the lint collection device, while the lint located in the middle of the cylinder and rotating with the water flow is relatively difficult to enter the lint collection device, reducing the lint collection rate. Summary of the Invention

[0005] This application provides a negative-pressure lint collection device and a washing machine thereof to solve the technical problem of low collection rate of the lint collection device in the related art.

[0006] On the one hand, this application provides a negative-pressure lint collection device, including: A housing, which has an accommodation cavity inside. The housing is provided with a water inlet pipe and a water outlet pipe communicating with the housing. An inhalation valve is arranged in the water inlet pipe, a discharge valve is arranged in the water outlet pipe, and a filter element for filtering lint is arranged in the water outlet pipe; A negative-pressure mechanism, at least part of which is arranged inside the housing. The negative-pressure mechanism is used to generate negative pressure in the accommodation cavity to suck the water in the cylinder of the washing machine into the water inlet pipe and discharge it through the water outlet pipe. By adopting the above technical solution, after the washing machine completes the washing operation and before the drainage operation starts, the negative pressure mechanism drives the generation of negative pressure inside the housing, and drives the suction valve to open by driving. The discharge valve is closed, so that the water in the cylinder is sucked into the housing along the water inlet pipe, and is discharged after being filtered by the filter element on the water outlet pipe. The negative pressure mechanism in the housing actively sucks the water in the cylinder and filters the water, without waiting for the water in the cylinder to rotate to collect lint in the water, and can actively collect lint at different positions, thereby improving the collection rate of lint.

[0007] In some embodiments, the negative pressure mechanism includes a piston and a linear motor. The piston is slidably disposed in the housing, and the circumference of the piston is sealingly abutted against the inner wall of the housing. The piston divides the space in the accommodating cavity into a first working cavity and a second working cavity. The water inlet pipe and the water outlet pipe are both communicated with the first working cavity. The linear motor is used to drive the piston to reciprocate slidably in the accommodating cavity.

[0008] By adopting the above technical solution, the linear motor drives the piston to reciprocate in the housing. When the piston moves in a direction away from the first working cavity, the suction valve and the discharge valve are opened at this time, so that the water in the cylinder can be adsorbed into the housing along the suction valve. When the piston moves in a direction close to the first working cavity, the suction valve is closed and the discharge valve is opened at this time, so that the water in the housing can be discharged along the discharge valve. The structure of the piston and the linear motor is simple, which improves the effect of driving the generation of negative pressure in the housing, thereby indirectly improving the suction effect of the water in the cylinder.

[0009] In some embodiments, a mesh cover is disposed in the water inlet pipe, and the mesh cover is used to prevent the clothes in the cylinder from being sucked into the water inlet pipe.

[0010] By adopting the above technical solution, when negative pressure is generated inside the housing, the mesh cover can prevent the clothes or other foreign objects being washed in the washing machine from being sucked into the water inlet pipe, resulting in blockage of the water inlet pipe, and the mesh cover does not prevent lint from entering the water inlet pipe, thereby further improving the collection effect of lint in the cylinder.

[0011] In some embodiments, a water inlet cylinder is communicated with the water inlet pipe on the water inlet pipe. The end of the water inlet cylinder close to the water inlet pipe has the same cross-sectional area as the water inlet pipe, and the cross-sectional area of the water inlet cylinder gradually increases in a direction away from the water inlet pipe.

[0012] By adopting the above technical solution, the cross-sectional area of the water inlet cylinder gradually increases in the direction away from the water inlet pipe, thereby increasing the opening area of the water inlet cylinder. When the water in the cylinder is sucked into the water inlet cylinder, the suction area of the water in the cylinder is increased, thereby further improving the collection rate of lint in the cylinder.

[0013] In some embodiments, a check valve is provided at the water outlet end of the water outlet pipe, and the check valve enables the water flow in the water outlet pipe to be from the water outlet pipe to the outside of the housing.

[0014] By adopting the above technical solution, with the setting of the check valve, it is prevented that when negative pressure is generated inside the housing, the water in the cylinder is driven along the water outlet pipe into the housing, so that the water in the cylinder can only enter along the water inlet pipe and discharge along the water outlet pipe, thereby further improving the suction effect of the water in the cylinder.

[0015] In some embodiments, a floating ball is provided on the housing, and the floating ball is used to drive the housing to float on the water surface in the cylinder.

[0016] By adopting the above technical solution, since lint is usually concentrated on the water surface in the cylinder, the setting of the floating ball can better drive the housing to float on the water surface in the cylinder, preventing the housing from sinking due to different water surface heights in the cylinder, and further indirectly improving the collection effect of lint.

[0017] In some embodiments, a lifting mechanism is further included, and the lifting mechanism is used to drive the housing to lift so as to adjust the height of the housing.

[0018] By adopting the above technical solution, the lifting mechanism drives the housing to lift, so that when the housing is not needed, the housing can move towards the position where the top cover is located, thereby preventing the housing from affecting the taking and placing of clothes in the cylinder. And when the cylinder rotates to rinse the clothes, it prevents the housing from rotating with the cylinder, improving the use effect of the negative pressure type lint collection device.

[0019] In some embodiments, the lifting mechanism includes a connecting member and a lifting member. The connecting member is used to drive the housing to freely float on the water surface in the cylinder, and the lifting member is used to drive the housing to lift through the connecting member.

[0020] By adopting the above technical solution, since when the washing machine cleans clothes, lint floats on the water surface in the cylinder, the setting of the connecting member can drive the housing to freely float on the water surface in the cylinder, so that the housing can be located on the water surface in the cylinder for lint collection, thereby further improving the collection rate of lint; the lifting member can drive the housing to lift through the connecting member, thereby realizing the adjustment of the position of the housing.

[0021] In some embodiments, the lifting mechanism further includes a controller and a detector. The detector is disposed on the top cover of the washing machine and is configured to detect the distance between the housing and the water surface inside the drum. The controller is configured to obtain the data detected by the detector to drive the lifting member to drive the housing to lift and lower.

[0022] By adopting the above technical solution, the detector can detect the distance between the housing and the water surface inside the drum, and the controller can easily adjust the height of the housing according to the detection data of the detector, thereby preventing the housing from sinking into the water surface inside the drum.

[0023] On the other hand, the present application provides a washing machine including the negative pressure lint collecting device. The washing machine includes a casing, a drum rotatably disposed inside the casing, a top cover hingedly disposed on the casing for closing the casing, and the housing is located inside the drum.

[0024] By adopting the above solution, the housing is connected to the top cover through a connecting member, so that a negative pressure can be generated inside the housing located inside the drum. At this time, the housing drives the water inlet pipe to actively suck the water inside the drum, and the water inside the drum is filtered by the filter member on the water outlet pipe and discharged along the water outlet pipe, thereby realizing the active collection of lint and improving the collection rate of lint. Description of the Drawings

[0025] The drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present application and used together with the specification to explain the principles of the present application.

[0026] Figure 1 Schematic structural diagram of the negative pressure lint collecting device provided by the embodiment of the present application;

[0027] Figure 2 Semi-sectional structural diagram of the housing of the negative pressure lint collecting device provided by the embodiment of the present application.

[0028] Description of the Reference Numerals:

[0029] 100, housing; 110, water inlet pipe; 111, suction valve; 112, mesh cover; 113, water inlet cylinder; 114, accommodation cavity;

[0030] 120, water outlet pipe; 121, discharge valve; 122, filter member; 123, check valve;

[0031] 130, piston; 131, linear motor; 132, first working cavity; 133, second working cavity;

[0032] 140, connecting member; 141, lifting motor; 142, rotating roller; 143, partition;

[0033] 150. Floating ball.

[0034] Through the above-mentioned drawings, specific embodiments of the present application have been shown, and more detailed descriptions will be given later. These drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0035] To make the purpose, technical solutions, and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below in conjunction with the drawings in the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the scope of protection of the present application.

[0036] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein, for example.

[0037] In the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations, or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Exactly speaking, using words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0038] The washing machines in the related art include a casing, a cylinder is rotatably arranged inside the casing, and a top cover for closing the casing is hinged on the casing. In order to collect lint in the water when the cylinder rotates to clean the clothes and prevent the lint in the water from clogging the water outlet pipe of the washing machine, a lint collection device is arranged on the inner wall of the cylinder. The lint collection device includes a housing detachably connected to the inner wall of the cylinder. An inlet and an outlet are provided on the housing, and a filter screen is sealed in the housing. When the cylinder rotates, the water in the cylinder can enter through the inlet and discharge through the outlet, so that the filter screen in the housing filters and collects the lint in the water.

[0039] However, the above-mentioned lint collection device needs to wait for the water flow to drive the lint into the housing to collect the lint. The lint located at the edge of the cylinder is relatively easy to enter the lint collection device, while the lint located in the middle of the cylinder and rotating with the water flow is relatively difficult to enter the lint collection device, reducing the lint collection rate.

[0040] To solve the above technical problems, the present application provides a negative pressure collection device and a washing machine thereof.

[0041] As Figure 1 shown, on the one hand, the present application provides a negative pressure collection device, including a housing 100 and a negative pressure mechanism; in this embodiment, the housing 100 is integrally arranged in a cuboid shape, and the housing 100 has a receiving cavity 114. A water inlet pipe 110 and a water outlet pipe 120 communicating with the housing 100 are arranged on the housing 100. The water inlet pipe 110 and the water outlet pipe 120 are respectively located on two opposite side walls of the cuboid-shaped housing 100; at least part of the negative pressure mechanism is arranged in the housing 100, and the negative pressure mechanism is used to generate negative pressure in the receiving cavity 114 to suck the water in the barrel of the washing machine into the housing 100 through the water inlet pipe 110 and discharge it through the water outlet pipe.

[0042] Combined with Figure 1 and Figure 2 , a suction valve 111 is arranged in the water inlet pipe 110. In this embodiment, the suction valve 111 is arranged as an electromagnetic valve, and the electromagnetic valve can be opened or closed by electric control to control the water inlet pipe 110; in other embodiments, the suction valve 111 can also be arranged as an automatic valve, which can be automatically opened when negative pressure is generated inside the housing 100, and can be automatically closed when there is no negative pressure inside the housing 100 for water inlet; a net cover 112 is arranged in the water inlet pipe 110. The net cover 112 is used to allow the lint in the barrel to pass through and prevent the clothes in the barrel from being sucked into the water inlet pipe 110. Specifically, the diameter of the mesh holes on the net cover 112 is larger than the diameter of the lint; when the water inlet pipe 110 is inletting water, the net cover 112 can prevent the clothes or other foreign objects in the barrel from entering the housing 100 along the water inlet pipe 110 and prevent the water inlet pipe 110 from being blocked.

[0043] Combined with Figure 1 and Figure 2 , in order to increase the water inlet area of the water inlet pipe 110 and thus improve the effect of the water in the barrel entering the water inlet pipe 110, a water inlet cylinder 113 communicating with the water inlet pipe 110 is arranged on the water inlet pipe 110. The end of the water inlet cylinder 113 close to the water inlet pipe 110 has the same cross-sectional area as the water inlet pipe 110, and the cross-sectional area of the water inlet cylinder 113 gradually increases in the direction away from the water inlet pipe 110; in this embodiment, the cross-section of the water inlet cylinder 113 is arranged as a circle, and in other embodiments, the cross-section of the water inlet cylinder 113 can also be arranged as a rectangle.

[0044] Combined with Figure 1 and Figure 2, a discharge valve 121 is provided in the water outlet pipe 120; in this embodiment, the discharge valve 121 is also set as an electromagnetic valve, and the electromagnetic valve can be opened or closed for the water outlet pipe 120 through electric control; in other embodiments, the discharge valve 121 can also be set as an automatic valve. When negative pressure drainage occurs inside the housing 100, the suction valve 111 closes, and at this time the automatic valve can be automatically opened, thereby realizing the drainage of the housing 100.

[0045] Combined with Figure 1 and Figure 2 , in order to filter the lint in the water when the water outlet pipe 120 discharges water, a filtering member 122 for filtering the lint is provided in the water outlet pipe 120; in this embodiment, the filtering member 122 includes a filter screen provided in the water outlet pipe 120, and the aperture of the filter screen is smaller than the aperture of the mesh cover 112. The filter screen can filter the lint in the water, thereby realizing the collection of the lint; in other embodiments, the water outlet pipe 120 can be detachably connected to the housing 100. By removing the water outlet pipe 120, it is convenient to clean the lint collected on the filter screen in the water outlet pipe 120.

[0046] Combined with Figure 1 and Figure 2 , in order to prevent the water in the cylinder from flowing back into the casing along the water outlet pipe 120, a check valve 123 is provided at the water outlet end of the water outlet pipe 120. The filter screen is located between the housing 100 and the check valve 123. The check valve 123 makes the water flow direction in the water outlet pipe 120 from the water outlet pipe 120 to the outside of the housing 100; the check valve 123 is a prior art, and its specific structure will not be described in detail; the water in the cylinder can enter through the water inlet pipe 110 and be discharged through the water outlet pipe 120, and cannot enter along the water outlet pipe 120, improving the filtering effect of the lint in the water.

[0047] Combined with Figure 1 and Figure 2 , the negative pressure mechanism includes a piston 130 and a linear motor 131. The piston 130 is slidably arranged in the housing 100, and the circumference of the piston 130 is in sealed contact with the inner wall of the housing 100. The piston 130 is slidably arranged in the housing 100 along the length direction of the cuboid-shaped housing 100. The piston 130 divides the accommodation cavity 114 into a first working cavity 132 and a second working cavity 133. The water inlet pipe 110 and the water outlet pipe 120 are both in communication with the first working cavity 132. The linear motor 131 is used to drive the piston 130 to reciprocate in the accommodation cavity 114.

[0048] Combined with Figure 1 and Figure 2, in this embodiment, in order to improve the sealing effect between the piston 130 and the inner wall of the housing 100, a first sealing ring is circumferentially arranged on the piston 130, and the first sealing ring is used to abut against the inner wall of the housing 100; the linear motor 131 is fixedly arranged on the outer wall of the housing 100, the driving end of the linear motor 131 penetrates and is slidably connected to the housing 100, the piston 130 is fixedly arranged on the driving end of the linear motor 131, and the linear motor 131 is set as a waterproof motor. In order to prevent water from entering the housing 100 along the gap between the driving end of the linear motor 131 and the housing 100, a second sealing ring is circumferentially arranged on the outer wall of the housing 100 at the position where the driving end of the linear motor 131 is located, and the inner wall of the second sealing ring is used to abut against the driving end of the linear motor 131.

[0049] Combined with Figure 1 and Figure 2 , when the driving end of the linear motor 131 drives the piston 130 to move away from the first working cavity 132, at this time the first working cavity 132 becomes larger, the second working cavity 133 becomes smaller, a negative pressure is generated inside the housing 100, the suction valve 111 opens, and the discharge valve 121 closes. Due to the setting of the check valve 123, the water inside the cylinder body can only enter the housing 100 along the water inlet pipe 110. At this time, the driving end of the linear motor 131 drives the piston 130 to move towards the first working cavity 132. At this time, the first working cavity 132 becomes smaller, the second working cavity 133 becomes larger, the suction valve 111 is in a closed state at this time, and the discharge valve 121 is in an open state at this time, so that the water in the first working cavity 132 inside the housing 100 is squeezed into the water outlet pipe 120. After the water is filtered by the filter element 122 to filter the lint in the water, the filtered water is discharged along the water outlet pipe 120. By repeating the above steps, multiple active water absorption and lint collection are realized, and the collection rate is improved.

[0050] Combined with Figure 1 and Figure 2 , since the lint is usually on the water surface inside the cylinder body, in order to drive the housing 100 to float on the water surface, a floating ball 150 is arranged on the housing 100, and the floating ball 150 is used to drive the housing 100 to float on the water surface inside the cylinder body; in other embodiments, the floating ball 150 can also be replaced by a floating member made of plastic or foam, which can also make the housing 100 float on the water surface inside the cylinder body.

[0051] In order to drive the housing 100 to move to the position of the top cover when the housing 100 is not needed, the negative pressure type lint collection device further includes a lifting mechanism. The lifting mechanism is arranged on the top cover and is used to drive the housing 100 to lift and lower, thereby adjusting the height of the housing 100; the lifting mechanism includes a connecting member 140 and a lifting member. The connecting member 140 is used to drive the housing 100 to float freely on the water surface in the cylinder, and the lifting member is used to drive the housing 100 to lift and lower through the connecting member 140.

[0052] Combined with Figure 1 and Figure 2 , the connecting member 140 is set as a flexible member; the flexible connecting member 140 includes a connecting rope. At least two connecting ropes are provided. One end of the connecting rope is fixedly arranged on the housing 100, and the other end is arranged on the lifting member; in this embodiment, two connecting ropes are provided.

[0053] Combined with Figure 1 and Figure 2 , in other embodiments, the flexible connecting member 140 can be replaced with a flexible waterproof cloth or waterproof film. By arranging the waterproof cloth and waterproof film along the length direction of the cuboid-shaped housing 100, the waterproof cloth or waterproof film can also drive the housing 100 to float on the water surface in the cylinder.

[0054] As Figure 1 shown, the lifting member includes a lifting motor 141 and a rotating roller 142. The lifting motor 141 is fixedly arranged on the top cover, and the rotating roller 142 is fixedly arranged on the driving end of the lifting motor 141. The connecting rope is wound around the rotating roller 142, and the end of the connecting rope away from the housing 100 is fixedly arranged on the rotating roller 142; in this embodiment, the cross-section of the rotating roller 142 is set as an "H" shape, and a partition 143 is circumferentially arranged in the middle of the rotating roller 142. The partition 143 divides the rotating roller 142 into two winding spaces, and the two connecting ropes are respectively wound in the two winding spaces.

[0055] Combined with Figure 1 and Figure 2 , by driving the rotating roller 142 to rotate through the lifting motor 141, the connecting rope is wound or unwound on the rotating roller 142. When the connecting rope is wound on the rotating roller 142, the connecting rope can drive the housing 100 to rise, so that the housing 100 moves towards the position where the top cover is located. When the connecting rope is unwound on the rotating roller 142, the connecting rope can drive the housing 100 to descend, so that the housing 100 floats on the water surface in the cylinder; in other embodiments, the lifting member can be replaced with an electric cylinder, a cylinder or a hydraulic cylinder, and the housing 100 is directly fixedly arranged on the driving end of the electric cylinder, the cylinder or the hydraulic cylinder, so that the electric cylinder, the cylinder and the hydraulic cylinder can also drive the housing 100 to lift and lower.

[0056] Combined withFigure 1 and Figure 2 In other embodiments, a waterproof cloth or a waterproof film can also be wound around the rotating roller 142. When the lifting motor 141 drives the rotating roller 142 to rotate, the waterproof cloth or the waterproof film can be wound or unwound on the rotating roller 142, and the waterproof cloth or the waterproof film can also drive the housing 100 to lift and lower.

[0057] The lifting mechanism further includes a controller and a detector. The detector is arranged on the top cover and is used to detect the distance between the housing 100 and the water surface in the cylinder body. The controller is used to obtain the data detected by the detector to drive the lifting member to drive the housing 100 to lift and lower. In this embodiment, the detector is set as a distance sensor, and the distance sensor is used to detect the distance between the top cover and the water surface in the cylinder body. According to the distance between the top cover and the water surface, the controller drives the lifting motor 141 to drive the rotating roller 142 to rotate, so that the connecting rope drives the housing 100 to lift and lower, and the housing 100 floats on the water surface in the cylinder body through the connecting rope. When the collection is completed, the controller drives the lifting motor 141 to drive the housing 100 to rise, so that the housing 100 moves to the position where the top cover is located, preventing it from affecting the washing of clothes.

[0058] On the other hand, the present application provides a washing machine, including the negative pressure lint collection device according to any one of the above embodiments. The washing machine includes a machine shell, a cylinder body is rotatably arranged in the machine shell, a top cover for closing the machine shell is hinged on the machine shell, a connecting member 140 is arranged on the top cover, and the housing 100 is located in the cylinder body.

[0059] The housing 100 is arranged on the top cover through the connecting member 140. When the washing machine needs to start the negative pressure lint collection device of the present application to collect lint before each dehydration after rinsing is completed, since the washing process of the washing machine includes multiple drainage operations, the distance between the top cover and the water surface in the cylinder body is detected by the detector before each drainage, so that the controller drives the lifting motor 141 to drive the rotating roller 142 to rotate, so that the connecting rope releases the housing 100 for lint collection, improving the lint collection rate. The housing 100 is driven by the lifting motor 141 to descend to the position where the water surface is located. At this time, the working time of the negative pressure lint collection device can be set. For example, the working time of the negative pressure lint collection device is one minute. In other embodiments, it can also be any other time. Specifically, the linear motor 131 drives the piston 130 to reciprocate for one minute, so that a negative pressure is generated inside the housing 100, and the water in the cylinder body is continuously sucked along the water inlet pipe 110, filtered by the filter element 122 on the water outlet pipe 120 and then discharged, thereby improving the lint collection rate. When the collection is completed, the controller drives the lifting motor 141 to drive the housing 100 to rise, so that the housing 100 moves to the position where the top cover is located, preventing it from affecting the washing of clothes.

[0060] So far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various embodiments of the present application.

Claims

1. A negative pressure wire scrap collection device, characterized in that: include: A housing (100), wherein the housing (100) has a containing cavity (114), the housing (100) is provided with a water inlet pipe (110) and a water outlet pipe (120) which are in communication with the housing (100), the water inlet pipe (110) is provided with a suction valve (111), the water outlet pipe (120) is provided with a discharge valve (121), and the water outlet pipe (120) is provided with a filter element (122) for filtering wire scraps; A negative pressure mechanism, the negative pressure mechanism is at least partially disposed in the housing (100), and the negative pressure mechanism is used to generate negative pressure in the accommodating chamber (114) so ​​as to suck water in the drum of the washing machine through the water inlet pipe (110) and discharge it through the water outlet pipe (120).

2. The negative pressure wire scrap collection device according to claim 1, characterized in that: The negative pressure mechanism comprises a piston (130) and a linear motor (131); the piston (130) is slidably arranged in the housing (100), and the piston (130) is circumferentially arranged in sealing contact with the inner wall of the housing (100); the piston (130) divides the space in the accommodating chamber (114) into a first working chamber (132) and a second working chamber (133); the water inlet pipe (110) and the water outlet pipe (120) are both arranged to be interconnected with the first working chamber (132); and the linear motor (131) is used for driving the piston (130) to slide back and forth in the accommodating chamber (114).

3. The negative pressure wire scrap collection device according to claim 1, characterized in that: A mesh cover (112) is provided in the water inlet pipe (110), and the mesh cover (112) is used to prevent the clothes in the drum from being sucked into the water inlet pipe (110).

4. The negative pressure wire scrap collection device according to claim 1, characterized in that: A water inlet cylinder (113) is provided on the water inlet pipe (110) and is in communication with the water inlet pipe (110); the end of the water inlet cylinder (113) close to the water inlet pipe (110) has the same cross-sectional area as the water inlet pipe (110); and the cross-sectional area of ​​the water inlet cylinder (113) gradually increases in a direction away from the water inlet pipe (110).

5. The negative pressure wire scrap collection device according to claim 1, characterized in that: A check valve (123) is provided at the water outlet end of the water outlet pipe (120), and the check valve (123) allows the water in the water outlet pipe (120) to flow from the water outlet pipe (120) to the outside of the housing (100).

6. The negative pressure wire scrap collection device according to claim 1, characterized in that: A floating ball (150) is provided on the shell (100), and the floating ball (150) is used to drive the shell (100) to float on the water surface in the cylinder.

7. The negative pressure wire scrap collection device according to any one of claims 1 to 6, characterized in that: It also comprises a lifting mechanism, wherein the lifting mechanism is used to drive the shell (100) to move up and down, thereby adjusting the height of the shell (100).

8. The negative pressure wire scrap collecting device according to claim 7, characterized in that: The lifting mechanism comprises a connecting member (140) and a lifting member, wherein the connecting member (140) is used to drive the shell (100) to float freely on the water surface in the cylinder, and the lifting member is used to drive the shell (100) to rise and fall via the connecting member (140).

9. The negative pressure wire scrap collection device according to claim 8, characterized in that: The lifting mechanism further comprises a controller and a detector, wherein the detector is arranged on the top cover of the washing machine, the detector is used to detect the distance between the shell (100) and the water surface in the drum, and the controller is used to obtain data detected by the detector to drive the lifting member to drive the shell (100) to rise and fall.

10. A washing machine, characterized in that: The negative pressure lint collection device comprises the device according to any one of claims 1 to 9, wherein the washing machine comprises a casing, a drum is rotatably arranged inside the casing, a top cover is hingedly arranged on the casing for closing the casing, and the shell (100) is located inside the drum.

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