Thread scrap collecting device and washing machine

Abstract

The invention belongs to the technical field of washing machines, and discloses a thread scrap collecting device and a washing machine. The thread chip collecting device comprises a water outlet pipeline and further comprises a refrigerating system used for cooling water flow in the water outlet pipeline, so that ice crystals wrapping thread chips are formed in the water flow; and the collecting device is used for collecting the ice crystals wrapping the thread scraps. According to the thread chip collecting device provided by the invention, the refrigerating system cools water flow, so that the peripheries of thread chips are wrapped by ice crystals, the thread chips are enlarged and thickened, and then the thread chips are collected into the collecting device. In the scheme, the ice crystals wrapping the thread scraps are formed on the peripheries of the thread scraps, so that the size of the thread scraps is enlarged, the aperture of the filter screen for collecting the thread scraps can be thickened, and the thread scraps can be collected more cleanly on the basis of not influencing the water flow.

Description

Technical Field

[0001] The invention belongs to the field of washing machines, and in particular relates to a lint collecting device and a washing machine. Background Art

[0002] Lint is the fiber debris from clothing that falls off during the washing process due to friction between clothing and the washing machine. Larger lint is several millimeters long and will enter the soil with the washing water, causing soil compaction and affecting the growth of crops. Smaller lint is called microlint, which is only a few microns in size and is not easy to collect. It will flow away with the washing water and eventually enter the human blood through the food chain, affecting human health.

[0003] For collecting wire scraps, the existing technology usually installs a filter on the drainage pipe, but the size of the filter mesh is difficult to determine. For example, if the mesh of the filter is too coarse, it will affect the filtering effect, causing some small wire scraps to not be collected and flow away with the water. If the mesh of the filter is too dense, it will affect the drainage flow rate and then the drainage speed. It is also easy to get clogged, resulting in poor drainage, prolonged drainage time, and a bad experience for users.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a lint collecting device and a washing machine which can collect all lint without affecting the water flow.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] In one aspect, a lint collecting device is provided.

[0008] The wire scrap collection device includes a water outlet pipeline, and also includes:

[0009] A refrigeration system is used to cool the water flow in the water outlet pipe so that ice crystals that wrap the wire scraps are formed in the water flow;

[0010] A collecting device is used to collect ice crystals wrapped around the wire scraps.

[0011] The lint collection device provided by the present invention has a refrigeration system that cools the water flow so that the outer periphery of the lint is wrapped by ice crystals, making the lint larger and thicker, and then the lint is collected in the collection device. In this solution, since the volume of the lint is enlarged, the aperture of the filter screen for collecting the lint can be thickened, so that the lint can be collected more cleanly without affecting the water flow.

[0012] Furthermore, the refrigeration system is connected to the middle part of the water outlet pipeline, and a coolant is added to the water outlet pipeline to reduce the temperature;

[0013] The collecting device comprises a first filter screen which is arranged obliquely at the water outlet end of the water outlet pipeline.

[0014] Furthermore, the water outlet end of the water outlet pipeline comprises a large diameter section, a reduced diameter section and a small diameter section which are sequentially connected from top to bottom; the diameter of the reduced diameter section gradually decreases from the large diameter section to the small diameter section;

[0015] One end of the first filter screen is arranged on the side wall of the connection between the variable diameter section and the small diameter section, and the other end is extended toward the small diameter section, with the extended end being located on the side wall of the small diameter section.

[0016] Further, an opening is provided on the side wall of the small diameter section, and the lowest position of the opening is flush with the extended end of the first filter screen;

[0017] A valve is also provided at the opening, which opens one-way from the inside of the small diameter section to the outside;

[0018] The valve is connected with a containing chamber for collecting ice crystals wrapping the wire scraps.

[0019] Furthermore, the accommodating chamber is formed by a water conduit, and one end of the water conduit is connected to the opening of the small diameter section.

[0020] Furthermore, the wire scrap collection device also includes a water storage device, and the water storage device is connected to the other end of the water conduit.

[0021] Furthermore, the valve is provided with a filtering structure having a filtering accuracy lower than that of the first filter net.

[0022] Further, the filtering structure includes multiple layers of filter screens;

[0023] The filtering accuracy of the multi-layer filter increases gradually from the water pipe to the opening.

[0024] Furthermore, a frame structure is arranged at the periphery of the filtering structure, and the periphery of the frame structure is sealed and connected to the opening.

[0025] On the other hand, a washing machine is also provided, comprising the above-mentioned lint collecting device.

[0026] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0027] 1. The lint collection device provided by the present invention has a refrigeration system that cools the water flow so that the outer periphery of the lint is wrapped by ice crystals, making the lint larger and thicker, and then the lint is collected in the collection device. In this solution, since ice crystals are formed on the outer periphery of the lint to wrap it, the volume of the lint becomes larger, and the aperture of the filter screen for collecting the lint can be thickened, so that the lint can be collected more cleanly without affecting the water flow.

[0028] 2. The lint collection device provided by the present invention has a valve at the extended end of the opening that is unidirectionally conducted from the side wall of the small diameter section to the outside of the small diameter section. When the lint on the first filter reaches a certain amount, the water flow pressure increases, and the water pressure will cause the valve to open, and the accumulated lint is guided into the accommodating cavity formed by the water conduit. This solution does not require the user to frequently clean the filter, thereby improving the user experience.

[0029] 3. In the solution provided by the present invention, since the valve includes a filter structure with a filtering accuracy lower than that of the first filter, after the ice crystals melt, the wire scraps will not flow into the outlet pipe through the filter structure. The filter structure includes multiple layers of filter screens, and the filtering accuracy of the multiple layers of filter screens gradually increases from the water conduit to the opening direction, so that the wire scraps can be filtered in stages to avoid accumulation, thus avoiding blockage and extending the cleaning time.

[0030] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0032] Figure 1 It is a structural schematic diagram of a lint collecting device installed on a washing machine of the present invention;

[0033] Figure 2 yes Figure 1 Schematic diagram of the location of the central water pipe;

[0034] Figure 3 It is a schematic diagram of the structure of the collecting device for collecting wire scraps in the present invention;

[0035] Figure 4 It is another structural schematic diagram of the collecting device of the present invention for collecting wire scraps.

[0036] In the figure: 1, housing; 2, washing drum; 3, water inlet pipe; 4, drainage pump; 5, water outlet pipe; 6, external drainage pipe; 7, refrigeration system; 8, collection device;

[0037] 501, bending portion; 502, large diameter section; 503, diameter-reducing section; 504, small diameter section;

[0038] 701, coolant storage device; 702, constant speed dispenser; 703, connecting pipeline;

[0039] 801, first filter screen; 802, filter structure; 803, rotating shaft; 804, water conduit; 805, water storage device.

[0040] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0041] In order to make the purpose, 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 in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0042] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] like Figures 1 to 4 As shown, the present invention provides a lint collecting device and a washing machine.

[0045] The wire scrap collection device includes a water outlet pipeline 5, and further includes:

[0046] A refrigeration system 7, used to cool the water flow in the water outlet pipe 5, so that ice crystals that wrap the wire scraps are formed in the water flow;

[0047] The collecting device 8 is used to collect the ice crystals wrapped around the wire scraps.

[0048] In the solution provided by the present invention, ice crystals are formed around the wire scraps to enlarge the volume of the wire scraps, and the aperture of the filter for collecting the wire scraps can be made coarser, thereby collecting the wire scraps more cleanly without affecting the water flow rate.

[0049] A washing machine, characterized in that it comprises the above-mentioned lint collecting device.

[0050] Embodiment 1

[0051] like Figure 1-4 As shown, this embodiment provides a wire scrap collection device.

[0052] The wire scrap collection device includes a water outlet pipe 5 and further includes:

[0053] A refrigeration system 7, used to cool the water flow in the water outlet pipe 5, so that ice crystals that wrap the wire scraps are formed in the water flow;

[0054] The collecting device 8 is used to collect the ice crystals wrapped around the wire scraps.

[0055] The wire scrap collection device provided in this embodiment includes a water outlet pipeline 5, a refrigeration system 7 and a collection device 8. The refrigeration system 7 is connected to the water outlet pipeline 5, and cools the water flow in the water outlet pipeline 5, so that the periphery of the wire scraps is surrounded by ice crystals, and ice crystals that wrap the wire scraps are formed in the water flow.

[0056] In the solution provided in this embodiment, the refrigeration system 7 cools the water flow so that the outer periphery of the wire scraps is wrapped by ice crystals, making them larger and thicker for collection. For micro wire scraps that are small in size and difficult to collect, this solution can also make their outer periphery wrapped by ice crystals, making them larger and thicker for collection, thus preventing the micro wire scraps from being discharged into the environment. This solution can also collect the wire scraps more cleanly without affecting the water flow rate.

[0057] The solution of this embodiment also includes: the refrigeration system 7 is connected to the middle part of the water outlet pipeline 5, and a coolant is added to the water outlet pipeline 5 to reduce the temperature;

[0058] The collecting device 8 includes a first filter screen 801 , which is obliquely arranged at the water outlet end of the water outlet pipe 5 .

[0059] More specifically, the water outlet pipe 5 has an upwardly protruding U-shaped bending portion 501 , and the refrigeration system 7 is connected to the highest position of the U-shaped bending portion 501 .

[0060] In this solution, the refrigeration system 7 includes a connecting pipe 703 and a coolant storage device 701. One end of the connecting pipe 703 is connected to the coolant storage device 701, and the other end is connected to the middle of the water outlet pipe. Specifically, the middle of the water outlet pipe 5 has an upwardly protruding U-shaped bending portion 501, and the connecting pipe is connected to the highest position of the U-shaped bending portion 501.

[0061] The refrigeration system 7 further includes a constant speed dispenser 702 disposed between the connecting pipeline 703 and the coolant storage device 701 , so that the coolant storage device 701 adds coolant to the water outlet pipeline 5 at a constant speed.

[0062] When in use, the coolant storage device 701 is filled with coolant, and the coolant is added to the water outlet pipe 5 through the connecting pipe to cool the washing water, so that ice crystals that wrap the wire scraps are formed in the water flow. In the scheme of this embodiment, the coolant is liquid nitrogen or liquefied air. The diluted liquid nitrogen or liquefied air is evenly introduced into the washing water being discharged. The liquid nitrogen or liquefied air will vaporize, absorb heat, and reduce the temperature of the washing water. In addition, during the vaporization process of liquid nitrogen or liquefied air, the washing water will become cavitational low-density water, which is more conducive to the filtration and flow of water.

[0063] The connecting pipe 703 in the above solution is a heat-insulating pipe for keeping the coolant passing through it warm.

[0064] It is worth mentioning that when water freezes, water molecules need condensation nuclei, and ice crystals can only be formed quickly when they are attached to condensation nuclei. During the laundry process, dust, lint, etc. in the water can be considered condensation nuclei. When the washing water cools down quickly, ice crystals will form on the condensation nuclei in the water, but the water is still flowing normally. In this way, the lint will be surrounded by ice crystals, become larger in size, and can be filtered by a coarser filter.

[0065] The solution of this embodiment also includes: the water outlet end of the water outlet pipe 5 includes a large diameter section 502, a reduced diameter section 503 and a small diameter section 504 connected in sequence from top to bottom; the diameter of the reduced diameter section 503 gradually decreases from the large diameter section 502 to the small diameter section 504;

[0066] One end of the first filter screen 801 is arranged on the side wall of the connection between the variable diameter section 503 and the small diameter section 504 , and the other end is extended toward the small diameter section 504 , with the extended end being located on the side wall of the small diameter section 504 .

[0067] An opening is provided on the side wall of the small diameter section 504, and the lowest position of the opening is flush with the extended end of the first filter screen 801;

[0068] A valve is also provided at the opening, which opens from the inside of the small diameter section 504 to the outside in one direction;

[0069] The valve is connected with a containing chamber for collecting ice crystals wrapping the wire scraps.

[0070] The following is a detailed description of the above scheme:

[0071] The outlet end of the outlet pipe 5 is provided with a venturi tube, which includes a large diameter section 502, a diameter reducing section 503 and a small diameter section 504 connected in sequence from top to bottom. The inner diameter of the pipeline of the large diameter section 502 is larger than the inner diameter of the pipeline of the small diameter section 504, and the diameter reducing section 503 is arranged between the large diameter section 502 and the small diameter section 504, and its inner diameter gradually decreases from the large diameter section 502 to the small diameter section 504.

[0072] The first filter screen 801 is tiltedly arranged at the throat of the venturi. Specifically, the first filter screen is tiltedly arranged in the pipeline of the small diameter section 504. More specifically, one end of the first filter screen 801 is arranged on the side wall of the connection between the variable diameter section 503 and the small diameter section 504, and the other end is extended downward to the small diameter section 504, and the extended end is located on the side wall on the other side of the small diameter section 504.

[0073] An opening is provided on the side wall of the small diameter section 504 at the extended end of the first filter net 801. The opening is provided above the first filter net 801, and its lowest position is flush with the extended end of the first filter net 801.

[0074] A valve capable of opening or closing the opening is also provided on the small diameter section 504 at the position of the opening, and a containing chamber for collecting ice crystals wrapped in wire scraps is connected to the outside of the valve. One end of the valve is hinged to the side wall of the small diameter section 504 above the opening through a rotating shaft 803, and the other end is movably pressed against the side wall of the small diameter section 504 below the opening. The valve flips upward from the side wall of the small diameter section 504 to the outside of the small diameter section 504, thereby opening the opening, and closes the opening when it moves from the outside of the small diameter section 504 to the side wall of the small diameter section 504. In other words, the valve in this scheme can only rotate counterclockwise along the rotating shaft to move outside the small diameter section 504, and cannot move through the opening to the inside of the small diameter section 504.

[0075] When in use, the refrigeration system 7 injects a coolant into the water outlet pipe 5 to cool the water flow in the water outlet pipe 5, so that ice crystals wrapped in wire scraps are formed in the water flow. When the water flow carries the ice crystals wrapped in wire scraps through the first filter 801, the filtered water flows through the first filter 801, and the ice crystals wrapped in wire scraps are collected on the first filter 801. Since the first filter 801 is tilted in the pipeline of the small diameter section 504, the ice crystals wrapped in wire scraps are easily gathered at the lower part of the first filter 801. When there are more ice crystals wrapped in wire scraps, the ice crystals block the first filter, and then the flow of water passing through the first filter decreases, causing the water flow pressure to increase. The pressure will prompt the valve to open outward, and the water flow will flush the ice crystals wrapped in wire scraps accumulated on the first filter 801 into the containing chamber. This solution can avoid the need for users to manually clean up when the wire scraps on the first filter 801 accumulate to a certain amount.

[0076] A preferred implementation of this embodiment is that the accommodating chamber is formed by a water conduit 804 , and one end of the water conduit is connected to the opening of the small diameter section 504 .

[0077] In the above solution, the water conduit 804 is connected to the opening of the small diameter section 504, and the diameter of the opening is smaller than the diameter of the water conduit 804. That is, the opening and the valve are both arranged in the water conduit 804. The water conduit 804 serves as a receiving chamber to store the collected ice crystals wrapping the wire scraps.

[0078] The solution of this embodiment also includes: the wire scrap collection device also includes a water storage device 805, and the water storage device 805 is connected to the other end of the water conduit 804.

[0079] In the above solution, one end of the water conduit 804 is connected to the opening of the small diameter section 504, and the other end of the water conduit 804 is connected to the water storage device 805. The purpose of providing the water storage device 805 is to prevent a large amount of washing water from gushing out of the water conduit 804 in the extreme case when the first filter screen is blocked too seriously, and the gushing washing water will flow into the water storage device 805.

[0080] The preferred implementation of this embodiment is that the valve is provided with a filtering structure 802 whose filtering accuracy is smaller than that of the first filtering net 801 .

[0081] In the above solution, the valve arranged at the opening position is a filter structure 802 , and the filtering accuracy of the filter structure 802 is lower than that of the first filter net 801 .

[0082] During use, when there are more ice crystals wrapped around the wire scraps, the water flow pressure increases, and the water pressure will cause the filter structure 802 to open outward, and the water flow together with the ice crystals wrapped around the wire scraps accumulated on the first filter screen 801 is introduced into the water conduit 804. At this time, there are fewer or no ice crystals wrapped around the wire scraps on the first filter screen 801, that is, the waterway is unblocked at this time, and the water flow returns to normal flow rate. The working principle of the Venturi tube is that the flow rate increases and the pressure decreases. As the wire scraps enter the water conduit, the wire scraps on the first filter screen are reduced or eliminated, the waterway is unblocked, the water flow rate in the small diameter section increases, and the pressure in the pipe decreases. The water conduit 804 is connected to the atmosphere, so the state of the filter structure 802 is changed from an outward water discharge state to an inward air intake state. As the ice crystals wrapped in the wire scraps enter the water conduit 804, the water is quickly sucked away, and the air entering is room temperature gas, which is higher than the temperature of the ice crystals, and the ice crystals melt quickly. The water after the ice crystals melt pass through the filter structure 802 and flow into the small diameter section 504, and the melted wire scraps remain in the water conduit 804.

[0083] In the above solution, since the filtering accuracy of the filtering structure 802 is lower than that of the first filter 801 , the melted wire scraps cannot enter the water outlet pipe 5 through the filtering structure 802 , and flow away with the water through the first filter 801 .

[0084] A further preferred implementation of this embodiment is: the filtering structure 802 includes multiple layers of filter screens;

[0085] The filtering accuracy of the multi-layer filter screen gradually increases from the water conduit 804 to the opening direction.

[0086] In the above scheme, the filter structure 802 has a certain thickness and includes multiple layers of filter screens arranged at intervals. The filtering accuracy of the multiple layers of filter screens is not the same, and the filtering accuracy gradually increases from the water conduit 804 to the opening. In other words, the filtering accuracy of the multiple layers of filter screens gradually increases from the water conduit 804 to the opening. The filter holes on the multiple layers of filter screens gradually become smaller from the water conduit 804 to the opening. In this way, when the ice crystals wrapped in the wire scraps entering the water conduit 804 melt, the wire scraps will flow to the opening with the melted water, first passing through the filter screen with low filtering accuracy, at which time the larger wire scraps are blocked, and then filtered step by step until the filtering is completed after passing through the filter screen with the highest filtering accuracy.

[0087] In the solution provided in this embodiment, since the filtering structure 802 includes filtering nets of different precisions, the ice crystals wrapped in the wire scraps are filtered in stages when they melt and enter the small diameter section 504, thus avoiding accumulation. This arrangement can avoid clogging and reduce the cleaning time of the user.

[0088] The solution of this embodiment also includes: a frame structure is provided at the periphery of the filtering structure 802 , and the periphery of the frame structure is sealed and connected to the small diameter section 504 .

[0089] In the above solution, a frame structure is arranged on the periphery of the filter structure 802 , and a sealing rubber pad is arranged on the periphery of the frame structure, so that the filter structure 802 is sealed and connected with the small diameter section 504 , thereby preventing wire scraps from escaping from the connection between the filter structure 802 and the small diameter section 504 .

[0090] In the solution provided in this embodiment, since the refrigeration system 7 lowers the temperature of the washing water by adding coolant to the water outlet pipe 5, ice crystals are formed around the wire scraps in the washing water, which increases the volume of the wire scraps. The aperture of the filter screen for collecting the wire scraps can be coarsened, so that the wire scraps can be collected more cleanly without affecting the water flow rate. In addition, since multiple layers of filter screens with gradually increasing filtering accuracy from the water guide pipe 804 to the opening direction are arranged at intervals, the ice crystals that wrap the wire scraps are filtered in stages when they melt and enter the small diameter section 504, avoiding accumulation. This arrangement can avoid blockage and reduce the number of cleaning times for users.

[0091] Embodiment 2

[0092] This embodiment provides a washing machine including the lint collecting structure described in the above embodiment.

[0093] like Figure 1 As shown, the washing machine provided in this embodiment includes a housing 1, a washing tub 2 and a drainage system. The drainage system includes a water inlet pipe 3, a water outlet pipe 5 and an external drainage pipe 6 connected in sequence. A drainage pump 4 is provided between the water inlet pipe 3 and the water outlet pipe 5.

[0094] The water outlet pipe 5 has an upwardly protruding U-shaped bending portion 501, and the refrigeration system 7 of the wire scrap collecting device is connected to the highest position of the U-shaped bending portion 501. The collecting device 8 is arranged at the end position of the water outlet pipe 5.

[0095] In this solution, the refrigeration system 7 and the collection device 8 are arranged in parallel.

[0096] In other solutions of this embodiment, the refrigeration system 7 and the collecting device 8 can be arranged at other positions of the water outlet pipeline 5 , or on the drainage pump 4 .

[0097] The washing machine provided in this embodiment has a lint collecting device disposed on the water outlet pipe 5, thereby taking into account both the lint filtering effect and the drainage speed of the washing water. In addition, the scheme also provides a filtering structure 802 to collect the lint collected on the first filter 801, which can reduce the number of lint cleaning times.

[0098] In the solution of this embodiment, when the washing machine is draining, the refrigeration system will release liquid nitrogen into the water outlet pipe to cool the washing water, so that ice crystals that wrap the wire scraps are formed in the water flow for easy collection.

[0099] Liquid nitrogen is a byproduct of liquid oxygen manufacturing and is inexpensive. It is non-toxic, odorless, and safe to use. It does not require the use of heat-insulating, high-pressure tanks for storage. It can be stored at a pressure slightly higher than the upper limit of the standard water pressure of tap water. The application cost is low and it is easy to promote.

[0100] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A wire scrap collection device, comprising a water outlet pipeline, characterized in that: Also includes: A refrigeration system is used to cool the water flow in the water outlet pipe so that ice crystals that wrap the wire scraps are formed in the water flow; A collecting device is used to collect ice crystals wrapped around the wire scraps.

2. The wire scrap collecting device according to claim 1, characterized in that: The refrigeration system is connected to the middle of the water outlet pipeline, and a coolant is added to the water outlet pipeline to reduce the temperature; The collecting device comprises a first filter screen which is arranged obliquely at the water outlet end of the water outlet pipeline.

3. The wire scrap collecting device according to claim 2, characterized in that: The water outlet end of the water outlet pipeline comprises a large diameter section, a reduced diameter section and a small diameter section connected in sequence from top to bottom; the diameter of the reduced diameter section gradually decreases from the large diameter section to the small diameter section; One end of the first filter screen is arranged on the side wall of the connection between the variable diameter section and the small diameter section, and the other end is extended toward the small diameter section, with the extended end being located on the side wall of the small diameter section.

4. The wire scrap collecting device according to claim 3, characterized in that: An opening is provided on the side wall of the small diameter section, wherein the lowest position of the opening is flush with the extended end of the first filter screen; A valve is also provided at the opening, which opens one-way from the inside of the small diameter section to the outside; The valve is connected with a containing chamber for collecting ice crystals wrapping the wire scraps.

5. The wire scrap collecting device according to claim 4, characterized in that: The accommodating chamber is formed by a water conduit, one end of which is connected to the opening of the small diameter section.

6. The wire scrap collecting device according to claim 4, characterized in that: The wire scrap collecting device also includes a water storage device, and the water storage device is connected to the other end of the water conduit.

7. The wire scrap collecting device according to any one of claims 4 to 6, characterized in that: The valve is provided with a filtering structure having a filtering accuracy lower than that of the first filtering net.

8. The wire scrap collecting device according to claim 7, characterized in that: The filtering structure includes multiple layers of filter screens; The filtering accuracy of the multi-layer filter gradually decreases from the water pipe to the opening.

9. The wire scrap collecting device according to claim 8, characterized in that: A frame structure is arranged at the periphery of the filtering structure, and the periphery of the frame structure is sealed and connected to the opening.

10. A washing machine, characterized in that: The washing machine comprises the lint collecting device according to any one of claims 1 to 9 above.

Images