Filtering device and drying equipment comprising same

By designing a slidingly connected filter device and setting up a rolling assembly therein, the problem of large disassembly space for existing filter devices is solved, improving the user experience and simplifying the disassembly process.

CN222524987UActive Publication Date: 2025-02-25QINGDAO HAIER DRUM WASHING MACHINE CO LTD
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Patent Information

Application Number
CN202421002620.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-10
Publication Date
2025-02-25
Estimated Expiration
2034-05-10

AI Technical Summary

Technical Problem

The existing filter devices require a large disassembly space during disassembly, which affects the user experience.

Method used

A filter device including a first bracket and a second bracket with a sliding connection is designed, and the filter mesh is mounted on the second bracket, through which the second bracket can slide along the first bracket, thereby reducing the removal space and in A rolling assembly is provided between the first bracket and the second bracket to reduce friction.

Benefits of technology

The space required for disassembly of the filter device is achieved, improving the user experience, and making the second bracket slide more easily through the use of the rolling assembly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of clothes processing equipment, in particular to a filtering device and drying equipment comprising the filtering device, and aims to solve the problem that the use experience of a user is poor due to the fact that an existing filtering device needs a large disassembly space. Therefore, the filtering device comprises a first support, a rolling assembly, a second support and a filter screen, the second support can move relative to the first support in the length direction of the first support, and the rolling assembly is located between the first support and the second support so as to reduce friction force between the second support and the first support. When the filtering device is detached, the second support can be pulled out firstly, then the second support slides along the first support, so that the second support and the first support are overlapped, the needed detaching space is small, the use experience of a user can be improved, in addition, by arranging the rolling assembly, the second support can slide along the first support more easily, and the user experience is improved. And the user experience is better.
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Description

Technical Field

[0001] The utility model relates to the technical field of clothing processing equipment, and specifically provides a filtering device and a drying device comprising the filtering device. Background Art

[0002] Drying equipment refers to a machine that can use hot air to dry clothes. Drying equipment mainly includes washing and drying machines, clothes dryers or drying machines.

[0003] Taking the washer-dryer as an example, the heating methods of the existing washer-dryers on the market are mostly electric heating or heat pump heating. No matter which heating method is chosen, the circulating air duct during the drying process is indispensable. During the drying process, the lint on the clothes will fall off, be carried by the fan and attached to the entire air duct.

[0004] To avoid the above situation, many integrated washing and drying machines choose to install a filter device in the drying air duct to filter the lint. In addition, in order to facilitate the cleaning of the filter device, a plug interface is generally provided on the drying air duct, and the filter device is inserted into the drying air duct through the plug interface. When the filter device needs to be cleaned, the filter device can be removed from the drying air duct.

[0005] However, the existing filtering device is relatively long and requires a large disassembly space when disassembling, which affects the user experience.

[0006] Therefore, this field needs a new technical solution to solve the above problems. Utility Model Content

[0007] The utility model aims to solve the above technical problem, that is, to solve the problem that the existing filtering device requires a large disassembly space, resulting in poor user experience.

[0008] In a first aspect, the utility model provides a filtering device, comprising a first bracket, a rolling assembly, a second bracket mounted on the first bracket, and a filter screen mounted on the second bracket, wherein the second bracket is movable relative to the first bracket along the length direction of the first bracket, and the rolling assembly is located between the first bracket and the second bracket to reduce the friction between the second bracket and the first bracket.

[0009] In the preferred technical solution of the above-mentioned filtering device, a plurality of grooves are provided on the first bracket or the second bracket, and the plurality of grooves are spaced apart along the moving direction of the second bracket. The rolling assembly includes a plurality of balls, and the plurality of balls are respectively located in the corresponding grooves and can rotate in the grooves.

[0010] In a preferred technical solution of the above-mentioned filtering device, a guide groove is provided on the second bracket or the first bracket, the guide groove extends along the moving direction of the second bracket, and a part of the ball is located in the guide groove.

[0011] In a preferred technical solution of the above-mentioned filtering device, the first bracket includes a first part and a second part distributed along its length direction, the first part is made of plastic material, the second part is made of metal material, and the groove is provided in the second part.

[0012] In the preferred technical solution of the above-mentioned filtering device, the first bracket is provided with a first sliding structure, and the second bracket is provided with a second sliding structure matching with the first sliding structure; and / or

[0013] The first bracket is provided with a first positioning structure, and the second bracket is provided with a second positioning structure. The first positioning structure and the second positioning structure are plugged in and matched to prevent the second bracket from sliding relative to the first bracket, so as to position the second bracket to a set installation position.

[0014] In the preferred technical solution of the above-mentioned filtering device, a first limiting structure is provided on the first bracket, and a second limiting structure is provided on the second bracket. The first limiting structure and the second limiting structure are abutted against each other to prevent the second bracket from sliding relative to the first bracket toward the outer end of the first bracket, so as to prevent the second bracket from sliding out of the first bracket. The outer end of the first bracket is the end of the first bracket away from the filter.

[0015] In the preferred technical solution of the above-mentioned filtering device, the first limiting structure is a limiting groove formed on the first bracket, the limiting groove penetrates the first bracket along the thickness direction of the first bracket, and the limiting groove extends along the length direction of the first bracket, and the second limiting structure is a limiting block arranged on the second bracket, the limiting block is located in the limiting groove and can move along the length direction of the limiting groove, and the limiting block and the outer end of the limiting groove are abutted and matched to prevent the second bracket from sliding relative to the first bracket toward the outer end of the first bracket, and the outer end of the limiting groove is the end of the limiting groove away from the filter.

[0016] In a preferred technical solution of the above-mentioned filtering device, the second bracket is provided with an opening near its outer end, the opening penetrates the second bracket along the thickness direction of the second bracket, and the outer end of the second bracket is the end of the second bracket away from the filter screen.

[0017] In a preferred technical solution of the above-mentioned filtering device, the filtering device further comprises a shell, the first bracket is mounted on the shell and can move relative to the shell along the length direction of the shell, and the first bracket and the second bracket are distributed along the length direction of the shell.

[0018] In a second aspect, the utility model also provides a drying device, comprising the above-mentioned filtering device.

[0019] When adopting the above technical solution, the filtering device of the utility model includes a first bracket and a second bracket which are slidably connected, and the filter screen is installed on the second bracket. Through such an arrangement, when disassembling the filtering device, the second bracket can be pulled out first, and then the second bracket can be slid along the first bracket, so that the second bracket overlaps with the first bracket, and the required disassembly space is smaller, thereby improving the user experience. In addition, by arranging a rolling assembly between the first bracket and the second bracket, the second bracket can be moved more easily along the first bracket, and the user experience is better.

[0020] Furthermore, the utility model provides a rolling assembly with a plurality of balls, which facilitates installation and helps reduce costs.

[0021] Furthermore, the utility model can also guide the second bracket through the cooperation of the ball and the guide groove, so that the second bracket can move more smoothly along the set route.

[0022] Furthermore, the first bracket and the second bracket of the utility model are connected by two sliding structures that slide together, so that the second bracket can slide along the first bracket more smoothly, thereby improving the user experience.

[0023] Furthermore, the utility model sets a first positioning structure and a second positioning structure for positioning cooperation, which can ensure that the user slides the second bracket to the set installation position when installing the filter component, thereby ensuring that the filter on the second bracket is installed to the set installation position, thereby ensuring the filtering effect of the filter component.

[0024] Furthermore, the present invention can prevent the second bracket from sliding off the first bracket by providing the first limiting structure and the second limiting structure for limiting cooperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The preferred embodiment of the present invention is described below in conjunction with the accompanying drawings of a washer-dryer, in which:

[0026] Figure 1 It is a structural schematic diagram of the integrated washer-dryer of the utility model;

[0027] Figure 2It is a schematic diagram of the assembly of the drying system and the drying drum of the utility model;

[0028] Figure 3 It is a structural schematic diagram of the filtering device of the utility model;

[0029] Figure 4 It is a structural schematic diagram of a filter assembly of the filter device of the utility model;

[0030] Figure 5 It is a structural schematic diagram of a first bracket of the filter device of the utility model;

[0031] Figure 6 It is a structural schematic diagram of the second bracket of the filtering device of the utility model.

[0032] List of reference numerals:

[0033] 1. Box body; 11. Second plug interface;

[0034] 2. Drying drum; 21. Exhaust vent; 22. Take-in and put-out port;

[0035] 3. Filter device; 31. First bracket; 32. Second bracket; 33. Housing;

[0036] 311, first sliding structure; 312, groove; 313, first positioning structure; 314, first limiting structure; 315, first part; 316, second part; 321, second sliding structure; 322, guide groove; 323, second positioning structure; 324, second limiting structure; 325, opening;

[0037] 41. first drying air duct; 42. second drying air duct; 411. first plug interface;

[0038] 5. Fan. DETAILED DESCRIPTION

[0039] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. For example, although the embodiments described below are described in conjunction with a washer-dryer, the technical solution of the present invention is also applicable to other drying devices with drying functions, such as dryers and care machines.

[0040] It should be noted that in the description of the present invention, the terms "inside", "outside", "upper", "lower", "left", "right", "top", "bottom", "front", "back" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0041] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "connect", and "install" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Specifically, Figure 1 and Figure 2 As shown, the washer-dryer of the present application includes a housing 1, a drying drum 2 installed in the housing 1, and a drying system, wherein the drying drum 2 is an outer drum of the washer-dryer, and a rotatable inner drum is arranged inside the outer drum, and the inner drum is used to accommodate clothes.

[0043] For example, Figure 2 As shown, the drying drum 2 is horizontally arranged, and the front end of the drying drum 2 is a loading and unloading port 22 for loading and unloading clothes. An exhaust port 21 is provided near the rear end of the drying drum 2, and the exhaust port 21 is connected with the air inlet end of the drying system. The air outlet end of the drying system extends to the loading and unloading port 22 of the drying drum 2. During the execution of the drying program, the humid air in the drying drum 2 enters the drying system from the exhaust port 21, and after condensation and heating by the drying system, re-enters the drying drum 2 from the loading and unloading port 22 to dry the clothes in the drying drum 2.

[0044] Preferably, if Figure 1 and Figure 2 As shown, the drying system of the present invention comprises a drying air duct and a filter device 3. A first plug interface 411 is provided on the drying air duct, and a part of the filter device 3 extends into the drying air duct through the first plug interface 411.

[0045] The filter device 3 is used to filter the airflow in the drying air duct and intercept impurities such as lint carried by the airflow. The filter device 3 is connected to the drying air duct by plugging. When the filter device 3 needs to be cleaned, the filter device 3 can be pulled out of the drying air duct and then inserted into the drying air duct from the first plug interface 411 after cleaning. The operation is very convenient.

[0046] Preferably, if Figure 1 As shown, the housing 1 of the washer-dryer of the present invention is provided with a second plug interface 11 at a position corresponding to the first plug interface 411 , the extension direction of the filter device 3 is parallel to the axial direction of the drying drum 2 of the washer-dryer, and the filter device 3 extends to the second plug interface 11 .

[0047] Exemplarily, the second plug interface 11 is disposed on the front panel of the housing 1 , and when the filter device 3 needs to be cleaned, the user can directly pull out the filter device 3 from the front panel.

[0048] Preferably, if Figure 1 and Figure 2 As shown, the drying air duct of the utility model includes a first drying air duct 41 and a second drying air duct 42. The two ends of the first drying air duct 41 are respectively connected to the exhaust port 21 on the drying drum 2 and the air inlet of the fan 5 of the drying system. The air outlet of the fan 5 is connected to one end of the second drying air duct 42. The other end of the second drying air duct 42 extends toward the loading and unloading port 22 of the drying drum 2. The first plug interface 411 is provided on the first drying air duct 41.

[0049] For example, Figure 1 and Figure 2 As shown, the first drying air duct 41 and the second drying air duct 42 are located on the same side of the drying drum 2. When the drying drum 2 is horizontally arranged, the first drying air duct 41 and the second drying air duct 42 are both located above the drying drum 2. In addition, the extension direction of the first drying air duct 41 intersects with the extension direction of the second drying air duct 42. Further, the extension direction of the first drying air duct 41 is perpendicular to the axial direction of the drying drum 2, and the extension direction of the second drying air duct 42 is parallel to the axial direction of the drying drum 2, that is, the first drying air duct 41 and the second drying air duct 42 are vertically arranged, and the angle between the two is 90°. In this way, the drying air duct occupies less space and the layout is more optimized.

[0050] Preferably, if Figure 2 As shown, the extension direction of the second drying air duct 42 is perpendicular to the axial direction of the fan 5 .

[0051] Among them, the air inlet of the fan 5 is arranged along the axial direction of the fan 5, and the air outlet of the fan 5 is arranged along the radial direction of the fan 5. The first drying air duct 41 is connected with the air inlet of the fan 5 and is parallel to the axial direction of the fan 5. The second drying air duct 42 is connected with the air outlet of the fan 5 and is perpendicular to the axial direction of the fan 5. The layout is more ingenious and the space utilization is more reasonable.

[0052] Preferably, if Figure 2 As shown, the air outlet 21 is arranged on the side wall of the drying cylinder 2.

[0053] Compared with arranging the exhaust port 21 on the rear wall of the drying drum 2 , arranging the exhaust port 21 on the side wall of the drying drum 2 facilitates connecting the first drying air duct 41 with the exhaust port 21 .

[0054] Preferably, the drying system of the present invention also includes a heat pump module (not shown in the figure), the evaporator of the heat pump module is installed in the first drying air duct 41 and is located downstream of the filtering device 3, and the condenser of the heat pump module is installed in the second drying air duct 42.

[0055] Among them, Figure 2 As shown, after the humid air flow in the drying drum 2 enters the first drying air duct 41, it is first filtered by the filter device 3, and then condensed by the evaporator. The water vapor in the humid air flow is condensed into water. The air flow passes through the fan 5 and enters the second drying air duct 42. After being heated by the condenser, it returns to the drying drum 2 to dry the clothes in the drying drum 2.

[0056] Preferably, if Figure 1 and Figure 3 As shown, the filter device 3 of the present application includes a housing 33 and a filter assembly installed on the housing 33 , and the filter assembly can move relative to the housing 33 along the length direction of the housing 33 .

[0057] The outer shell 33 is fixedly installed between the drying air duct and the housing 1, specifically, the outer shell 33 is fixedly installed between the first drying air duct 41 and the housing 1, and the two ends of the outer shell 33 are respectively connected with the first plug port 411 on the first drying air duct 41 and the second plug port 11 on the housing 1, and a part of the filter assembly extends into the drying air duct through the first plug port 411, specifically into the first drying air duct 41, and the filter assembly extends to the second plug port 11. When the filter device needs to be cleaned, it is only necessary to pull out the filter assembly without disassembling the outer shell 33 of the filter device. In addition, the extension direction of the outer shell 33 and the filter assembly is preferably parallel to the axial direction of the drying drum 2 of the drying device.

[0058] It should be noted that the housing 33 is not mandatory, and those skilled in the art may also cancel the housing 33 according to actual conditions in actual applications.

[0059] Preferably, if Figures 2 to 4 As shown, the filter assembly of the present invention includes a first bracket 31 , a second bracket 32 ​​installed on the first bracket 31 , and a filter screen (not shown in the figure) installed on the second bracket 32 ​​.

[0060] Among them, the first bracket 31 is installed on the shell 33 and can move relative to the shell 33 along the length direction of the shell 33. The first bracket 31 and the second bracket 32 ​​are distributed along the length direction of the shell 33. The extension directions of the first bracket 31 and the second bracket 32 ​​are parallel to the axial direction of the drying drum 2 of the washer-dryer. The first bracket 31 extends to the second plug interface 11, and the second bracket 32 ​​and the filter screen pass through the first plug interface 411 and extend into the drying air duct. Specifically, the second bracket 32 ​​and the filter screen pass through the first plug interface 411 and extend into the first drying air duct 41.

[0061] It should be noted that, in actual application, those skilled in the art can make the second bracket 32 ​​extend completely into the first drying air duct 41, or only make the second bracket 32 ​​with the filter installed extend into the first drying air duct 41, etc. Such flexible adjustment and change do not deviate from the principle and scope of the utility model and should be limited within the protection scope of the utility model. Of course, the utility model preferably makes only a part of the second bracket 32 ​​extend into the first drying air duct 41.

[0062] In addition, it should be noted that, in actual application, those skilled in the art can extend the entire filter screen into the first drying air duct 41, or only extend a portion of the filter screen into the first drying air duct 41, etc. Such flexible adjustments and changes do not deviate from the principle and scope of the present invention and should be limited within the protection scope of the present invention. Of course, the present invention preferably extends the entire filter screen into the first drying air duct 41.

[0063] Preferably, if Figures 4 to 6 As shown, the second bracket 32 ​​of the present invention can move relative to the first bracket 31 along the length direction of the first bracket 31 .

[0064] When the filter needs to be cleaned, first pull the first bracket 31 out of the box body 1. When the outer end of the second bracket 32 ​​moves to the outside of the box body 1 with the first bracket 31, keep the first bracket 31 stationary and pull the second bracket 32 ​​to move along the first bracket 31 until the filter is pulled out. In this way, when disassembling the filter device 3, the required lateral space is smaller, disassembly is more convenient, and it is easy to arrange the washer-dryer.

[0065] Preferably, if Figures 4 to 6 As shown, the first bracket 31 is provided with a first sliding structure 311 , and the second bracket 32 ​​is provided with a second sliding structure 321 matched with the first sliding structure 311 .

[0066] For example, Figures 4 to 6As shown, the first bracket 31 and the second bracket 32 ​​are vertically arranged, the first sliding structure 311 is arranged on the top of the first bracket 31, and the second sliding structure 321 is arranged on the top of the second bracket 32. The first sliding structure 311 and the second sliding structure 321 are slidably matched. When the second bracket 32 ​​moves relative to the first bracket 31, the second sliding structure 321 slides along the first sliding structure 311.

[0067] It should be noted that the utility model does not limit the specific structural form of the above-mentioned two sliding structures. For example, it can be set as a structure in which a sliding groove cooperates with a sliding bar, or a structure in which a sliding groove cooperates with a slider, or a structure in which a sliding hole cooperates with a sliding column, and so on.

[0068] Preferably, if Figures 4 to 6 As shown, the first sliding structure 311 is a sliding groove, and the second sliding structure 321 is a sliding bar, and the sliding bar is adapted to the sliding groove.

[0069] Exemplarily, the slide groove is located at the top of the first bracket 31 and extends along the length direction of the first bracket 31, the slide bar is located at the top of the second bracket 32 ​​and extends along the length direction of the second bracket 32, and the slide bar is located in the slide groove and can slide along the slide groove.

[0070] It should be noted that, in practical applications, those skilled in the art may also configure the first sliding structure 311 as a sliding bar, and correspondingly configure the second sliding structure 321 as a sliding groove.

[0071] Preferably, the filtering device of the present invention further comprises a rolling assembly, and the rolling assembly is located between the first bracket 31 and the second bracket 32 ​​to reduce the friction between the second bracket 32 ​​and the first bracket 31 .

[0072] By arranging a rolling assembly between the first bracket 31 and the second bracket 32 ​​, the second bracket 32 ​​can slide along the first bracket 31 more easily, and the user experience is better.

[0073] It should be noted that the present invention does not limit the specific structural form of the rolling component. For example, those skilled in the art may configure the rolling component to include multiple balls, multiple rollers, or multiple wheels, etc.

[0074] Preferably, if Figures 4 to 6 As shown, the first bracket 31 is provided with a plurality of grooves 312 , which are spaced apart along the moving direction of the second bracket 32 ​​, and the rolling assembly includes a plurality of balls (not shown in the figure), which are respectively located in the corresponding grooves 312 and can rotate in the grooves 312 .

[0075] Exemplarily, the groove 312 is arranged at the bottom of the first bracket 31, and is arranged opposite to the first sliding structure 311 located at the top of the first bracket 31. A ball is installed in each groove 312. The groove 312 is a semicircular structure. A part of the ball is located outside the groove 312. The ball is supported on the bottom of the second bracket 32. When the second bracket 32 ​​moves relative to the first bracket 31, the ball rolls in the groove 312 to reduce the friction resistance of the second bracket 32.

[0076] It should be noted that a person skilled in the art may also install a plurality of ball bearings on the second bracket 32 ​​, that is, provide a plurality of grooves 312 on the second bracket 32 ​​. In this case, it is preferred that the plurality of grooves 312 are provided at the top of the second bracket 32 ​​, and the second sliding structure 321 is provided at the bottom of the second bracket 32 ​​.

[0077] Preferably, if Figures 4 to 6 As shown, a guide groove 322 is provided on the second bracket 32 ​​, and the guide groove 322 extends along the moving direction of the second bracket 32 ​​, and a part of the ball is located in the guide groove 322 .

[0078] That is to say, the cooperation between the ball bearing and the guide groove 322 can also guide the second bracket 32, so that the second bracket 32 ​​can move more smoothly along the set route.

[0079] Exemplarily, the guide groove 322 is located at the bottom of the second bracket 32 ​​, the opening of the guide groove 322 faces downward, the lower half of the ball is located in the groove 312 of the first bracket 31 , and the upper half of the ball is located in the guide groove 322 of the second bracket 32 ​​.

[0080] It should be noted that, when the groove 312 is provided on the second bracket 32 ​​, the guide groove 322 is provided on the first bracket 31 .

[0081] Preferably, if Figure 4 and Figure 5 As shown, the first bracket 31 includes a first portion 315 and a second portion 316 distributed along its length direction. The first portion 315 is made of plastic material, the second portion 316 is made of metal material, and the groove 312 is provided in the second portion 316 .

[0082] By making a portion of the first bracket 31 of metal material (such as aluminum alloy), the structural strength of the first bracket 31 can be improved, deformation of the first bracket 31 can be avoided, and the second bracket 32 ​​can move smoothly along the first bracket 31.

[0083] Preferably, if Figures 4 to 6As shown, the first bracket 31 is provided with a first positioning structure 313, and the second bracket 32 ​​is provided with a second positioning structure 323. The first positioning structure 313 and the second positioning structure 323 are plugged in and out to prevent the second bracket 32 ​​from sliding relative to the first bracket 31, so as to position the second bracket 32 ​​to a set installation position.

[0084] Exemplarily, the first positioning structure 313 is a positioning opening formed on the first bracket 31, and the second positioning structure 323 is a positioning plate arranged on the second bracket 32. After the filter is cleaned, the second bracket 32 ​​is slid to the set installation position. At this time, the positioning plate on the second bracket 32 ​​can be inserted into the positioning opening on the first bracket 31, so that the second bracket 32 ​​can neither move forward nor backward. In this way, after the second bracket 32 ​​is inserted into the first drying air duct 41, it can ensure that the filter is in the set installation position, thereby ensuring the filtering effect of the filtering device.

[0085] It should be noted that the first positioning structure 313 and the second positioning structure 323 are not limited to the structural form of the positioning port and the positioning plate introduced above. For example, they can also be set as a structure in which a positioning groove cooperates with a positioning plate, or a structure in which a positioning port cooperates with a positioning column, etc.

[0086] Preferably, if Figures 4 to 6 As shown, the first bracket 31 is provided with a first limiting structure 314, and the second bracket 32 ​​is provided with a second limiting structure 324. The first limiting structure 314 and the second limiting structure 324 are abutted against each other to prevent the second bracket 32 ​​from moving relative to the first bracket 31 toward the outer end of the first bracket 31 (from Figure 4 and Figure 5 The left end of the first bracket 31 (as viewed from above) slides to prevent the second bracket 32 ​​from sliding out of the first bracket 31, and the outer end of the first bracket 31 is the end of the first bracket 31 away from the filter screen.

[0087] The first limiting structure 314 cooperates with the second limiting structure 324 to only prevent the second bracket 32 ​​from sliding toward the outer end of the first bracket 31 , but does not prevent the second bracket 32 ​​from sliding toward the inner end of the first bracket 31 .

[0088] It should be noted that the utility model does not limit the specific structural form of the first limiting structure 314 and the second limiting structure 324. For example, it can be set as a structure in which two limiting plates cooperate with each other, or set as a structure in which two limiting blocks cooperate with each other, or set as a structure in which a limiting plate and a limiting block cooperate with each other, and so on.

[0089] Preferably, if Figures 4 to 6As shown, the first limiting structure 314 is a limiting groove formed on the first bracket 31, the limiting groove penetrates the first bracket 31 along the thickness direction of the first bracket 31, and the limiting groove extends along the length direction of the first bracket 31. The second limiting structure 324 is a limiting block provided on the second bracket 32, the limiting block is located in the limiting groove and can move along the length direction of the limiting groove, and the limiting block and the outer end of the limiting groove (from Figure 4 and Figure 5 The abutment (the left end of the limit groove when viewed from above) can prevent the second bracket 32 ​​from sliding relative to the first bracket 31 toward the outer end of the first bracket 31, and the outer end of the limit groove is the end of the limit groove away from the filter screen.

[0090] That is to say, the limiting groove on the first bracket 31 and the limiting block on the second bracket 32 ​​can be abutted against each other to prevent the second bracket 32 ​​from sliding out from the outer end of the first bracket 31 , and can also guide the second bracket 32 ​​.

[0091] Preferably, if Figure 4 and Figure 6 As shown, the second bracket 32 ​​is located near its outer end (from Figure 6 An opening 325 is provided at a position (the right end of the second bracket 32 ​​when viewed from above), and the opening 325 penetrates the second bracket 32 ​​along the thickness direction of the second bracket 32. The outer end of the second bracket 32 ​​is the end of the second bracket 32 ​​away from the filter screen.

[0092] When the second bracket 32 ​​needs to be slid, the user can hold the opening 325 on the second bracket 32 ​​with his hands and push or pull the second bracket 32 ​​to slide, which is very convenient to operate.

[0093] Those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims of the present application, any one of the claimed embodiments may be used in any combination.

[0094] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A filtering device, characterized in that: The filtering device includes a first bracket, a rolling assembly, a second bracket installed on the first bracket, and a filter screen installed on the second bracket. The second bracket can move relative to the first bracket along the length direction of the first bracket. The rolling assembly is located between the first bracket and the second bracket to reduce the friction between the second bracket and the first bracket.

2. The filtering device according to claim 1, characterized in that: The first bracket or the second bracket is provided with a plurality of grooves, and the plurality of grooves are spaced apart along the moving direction of the second bracket. The rolling assembly includes a plurality of balls, and the plurality of balls are respectively located in the corresponding grooves and can rotate in the grooves.

3. The filtering device according to claim 2, characterized in that: A guide groove is provided on the second bracket or the first bracket, and the guide groove extends along the moving direction of the second bracket. A part of the ball is located in the guide groove.

4. The filtering device according to claim 2, characterized in that: The first bracket includes a first part and a second part distributed along the length direction thereof, the first part is made of plastic material, the second part is made of metal material, and the groove is arranged in the second part.

5. The filtering device according to claim 1, characterized in that: The first bracket is provided with a first sliding structure, and the second bracket is provided with a second sliding structure matching with the first sliding structure; and / or The first bracket is provided with a first positioning structure, and the second bracket is provided with a second positioning structure. The first positioning structure and the second positioning structure are plugged in and matched to prevent the second bracket from sliding relative to the first bracket, so as to position the second bracket to a set installation position.

6. The filtering device according to claim 1, characterized in that: A first limiting structure is provided on the first bracket, and a second limiting structure is provided on the second bracket. The first limiting structure and the second limiting structure abut against each other to prevent the second bracket from sliding relative to the first bracket toward the outer end of the first bracket, so as to prevent the second bracket from sliding out of the first bracket. The outer end of the first bracket is the end of the first bracket away from the filter.

7. The filtering device according to claim 6, characterized in that: The first limiting structure is a limiting groove formed on the first bracket, the limiting groove penetrates the first bracket along the thickness direction of the first bracket, and the limiting groove extends along the length direction of the first bracket. The second limiting structure is a limiting block arranged on the second bracket, the limiting block is located in the limiting groove and can move along the length direction of the limiting groove, and the limiting block abuts against the outer end of the limiting groove to prevent the second bracket from sliding relative to the first bracket toward the outer end of the first bracket, and the outer end of the limiting groove is the end of the limiting groove away from the filter.

8. The filtering device according to claim 1, characterized in that: The second bracket is provided with an opening near its outer end, and the opening penetrates the second bracket along the thickness direction of the second bracket. The outer end of the second bracket is an end of the second bracket away from the filter screen.

9. The filtering device according to any one of claims 1 to 8, characterized in that The filtering device further comprises a shell, the first bracket is mounted on the shell and can move relative to the shell along a length direction of the shell, and the first bracket and the second bracket are distributed along the length direction of the shell.

10. A drying device, characterized in that: The drying equipment comprises the filtering device according to any one of claims 1 to 9.