A filter that is easy to replace the filter screen

Abstract

The present invention relates to the technical field of filters, and specifically to a filter that is easy to replace a filter screen, comprising an outer frame, a filter screen, and a movable door, wherein one side of the outer frame extends outwardly and is provided with at least one mounting mechanism, the mounting mechanism being used to mount the filter screen, the mounting mechanism having two opposite sides symmetrically arranged and tilted, and the mounting mechanism being open on the side close to the outer frame, the movable door being detachably connected to the interior of the mounting mechanism, and the movable door being used to cooperate with the inner side of the mounting mechanism to mount the filter screen. The structural composition of the present invention is detachable, and a frame is formed by combining the outer frame and the mounting mechanism. The movable door can be used to select and assemble a suitable filter screen through the cooperation of the movable door and the mounting mechanism, thereby realizing the replaceable function of the filter screen, facilitating the cleaning of the filter screen, and reducing maintenance costs.

Description

Technical Field

[0001] The present invention relates to the technical field of filters, and in particular to a filter with a filter screen that is easy to replace. Background Art

[0002] An air filter is a device that captures dust from a gas-solid two-phase flow and purifies the gas through the action of porous filter materials. It purifies low-dust air and delivers it indoors to ensure the process requirements of clean rooms and the air cleanliness of general air-conditioned rooms. Existing air filters are generally made of one piece and cannot be disassembled as a whole, resulting in them taking up a large amount of space, making them difficult to transport and inconvenient to replace. In particular, the filter mesh tends to accumulate a lot of dust and needs to be cleaned or replaced after long-term use. Its one-piece structure makes the filter mesh difficult to clean and requires the entire filter to be disassembled for cleaning, which can easily lead to filter damage. Once the filter mesh fails to capture dust, the entire filter needs to be replaced, greatly increasing maintenance costs. Summary of the Invention

[0003] To address the aforementioned problems of the prior art, the present invention aims to provide a filter that facilitates filter screen replacement. The present invention features a detachable structure, with an outer frame and mounting mechanism forming a frame. A movable door cooperates with the mounting mechanism to select and install a suitable filter screen, achieving filter screen replacement, facilitating filter screen cleaning, and reducing maintenance costs.

[0004] The filter of the present invention is easy to replace the filter, including an outer frame, a filter and a movable door. One side of the outer frame extends outward and is provided with at least one mounting mechanism, and the mounting mechanism is used to install the filter. The two opposite sides of the mounting mechanism are symmetrically arranged and tilted, and the side of the mounting mechanism close to the outer frame is open. The movable door is detachably connected to the inside of the mounting mechanism, and the movable door is used to cooperate with the inner side of the mounting mechanism to install the filter.

[0005] In one embodiment, each of the mounting mechanisms is hingedly connected to the interior of two movable doors, one end of the movable door extends toward the opening side of the mounting mechanism and is detachably connected to the bottom side of the mounting mechanism; the two movable doors rotate along the hinges respectively, thereby respectively approaching or moving away from the two inclined inner sides of the mounting mechanism.

[0006] In one embodiment, the mounting mechanism includes two baffles inserted on the outer frame and arranged opposite to each other, the baffles are trapezoidal, and the top surface and two side surfaces between the two baffles are respectively provided with a connecting plate and a pressure plate, the movable door is hinged on the inner side of the connecting plate, and the middle part of the pressure plate is hollowed out and is used to cooperate with the movable door to install the filter.

[0007] In one embodiment, the bottom side of the baffle is bent inward and provided with a protrusion, the movable door is provided with a through hole adapted to the protrusion, and the bottom side between the two baffles is also detachably connected with a support plate for supporting the bottom side of the filter screen.

[0008] In one embodiment, a groove is provided on a side of the movable door close to the support plate.

[0009] In one embodiment, there are multiple mounting mechanisms and they are arranged on the outer frame with the opening side as the plane, and connecting rods are further provided between the top surfaces of the multiple mounting mechanisms.

[0010] In one embodiment, both sides of the top surface of the baffle are provided with a card slot, and the connecting rod is detachably connected between every two baffles arranged side by side through the card slot.

[0011] In one embodiment, the outer frame includes four cross bars and four right-angle connectors, and the cross bars and the right-angle connectors are arranged at intervals and are detachably connected in sequence.

[0012] In one embodiment, the mounting mechanism is connected to the inner side of the outer frame, and sealing layers are arranged on both the upper and lower sides of the outer frame.

[0013] In one embodiment, the outer side of the filter screen is wrapped with a sealing strip, and the sealing strip is coated with an adhesive material.

[0014] Compared with the prior art, the beneficial effects of the technical solution of the present invention are:

[0015] 1. The structure of the present invention is detachable. The frame is formed by combining the outer frame and the mounting mechanism. The movable door cooperates with the mounting mechanism to select and assemble a suitable filter, thereby realizing the replaceable function of the filter, facilitating the cleaning of the filter and reducing maintenance costs.

[0016] 2. When in use, the device can be removed through the two inner sides of the mounting mechanism via the movable door, and a filter of the corresponding size can be installed. The movable door can then be closed to replace the filter. The interior of the movable door can be hinged to the mounting mechanism. After opening the movable door and inserting the corresponding filter, the movable door can be rotated toward the inclined side of the mounting mechanism to press the filter to complete the installation.

[0017] 3. The present invention is divided into three forms: integrated, semi-disassembled and fully disassembled. The mounting mechanism and the outer frame can be an integrated structure, connected by welding or other methods; or they can be divided into several major parts and made into an integrated structure, and then combined by snap fasteners or other methods. It can also be completely disassembled into various small parts, which is convenient for replacement of corresponding parts. In addition, when damaged, it does not need to be replaced as a whole, reducing maintenance costs. The size of the filter can also be adjusted according to actual conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a structural diagram of embodiment 1 of the present invention;

[0019] Figure 2 is a schematic structural diagram of embodiment 2 of the present invention;

[0020] Figure 3 is a schematic structural diagram of embodiment 3 of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of Example 3 of the present invention without the filter installed;

[0022] Figure 5 Schematic diagram of the assembly of the movable door and the connecting plate in Example 3 of the present invention;

[0023] Figure 6 This is a schematic diagram of the assembly of the outer frame, baffle and support plate in Example 3 of the present invention.

[0024] Explanation of the reference numerals: 1-outer frame, 11-cross bar, 12-right-angle connector, 2-installation mechanism, 21-baffle, 22-connecting plate, 23-pressing plate, 24-raised portion, 25-support plate, 26-connecting rod, 3-filter screen, 4-movable door, 5-sealing layer. DETAILED DESCRIPTION

[0025] The accompanying drawings are for illustrative purposes only and are not to be construed as limitations on this patent. To better illustrate this embodiment, some components of the accompanying drawings may be omitted, enlarged, or reduced in size, and do not represent the actual dimensions of the product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted from the accompanying drawings.

[0026] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installation" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, which can be considered as internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances. The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0027] like Figures 1-6 As shown, a filter that is easy to replace the filter screen of the present invention includes an outer frame 1, a filter screen 3 and a movable door 4. One side of the outer frame 1 is extended outward to be provided with at least one mounting mechanism 2, and the mounting mechanism 2 is used to install the filter screen 3. The two opposite sides of the mounting mechanism 2 are symmetrically arranged and tilted, and the side of the mounting mechanism 2 close to the outer frame 1 is open. The movable door 4 is detachably connected to the inside of the mounting mechanism 2, and the movable door 4 is used to cooperate with the inner side of the mounting mechanism 2 to install the filter screen 3. The structural composition of the present invention is detachable, and the outer frame 1 and the mounting mechanism 2 are combined to form a frame. The movable door 4 cooperates with the mounting mechanism 2 to select and assemble a suitable filter screen 3, thereby realizing the replaceable function of the filter screen 3, facilitating the cleaning of the filter screen 3 and reducing maintenance costs. The filter screen 3 can be composed of multiple pieces at the same installation position, and can also be stacked to increase the filtering effect of the corresponding position.

[0028] When in use, the device can be removed from the inner sides of the mounting mechanism 2 via the movable door 4, and a filter 3 of a corresponding size can be installed. The movable door 4 can then be closed to replace the filter 3. The movable door 4 can be a sliding cover, that is, the inner sides of the mounting mechanism 2 are provided with slide rails, which allow the movable door 4 to move along the slide rails and be pulled out or pushed in from the open side to coordinate with the inclined side of the mounting mechanism 2 to position the filter 3. However, this requires a filter 3 of the correct size, and the movable door 4 and other devices need to have a certain degree of elasticity, otherwise gaps may easily form or the open side of the mounting mechanism 2 may not be connected to the movable door 4. Therefore, further, two movable doors 4 are hingedly connected to the interior of each mounting mechanism 2, one end of which extends toward the open side of the mounting mechanism 2 and is detachably connected to the bottom side of the mounting mechanism 2; the two movable doors 4 rotate along the hinges, thereby respectively approaching or moving away from the two inclined inner sides of the mounting mechanism 2. The interior of the movable door 4 can be arranged to be hinged with the installation mechanism 2. After opening the movable door 4 and inserting the corresponding filter 3, the movable door 4 can be rotated toward the inclined side of the installation mechanism 2 and the filter 3 can be pressed to complete the installation.

[0029] To ensure a tight connection between the filter 3 and the frame formed by the mounting mechanism 2 and the movable door 4, preventing air leakage, a sealing strip is wrapped around the outside of the filter 3, and the sealing strip is coated with an adhesive material. The sealing strip can be positioned and installed using the grooves or protrusions formed on the outer frame of the filter 3. The sealing strip has a certain degree of elasticity, which can fill the gap between the filter 3 and the mounting mechanism 2, so that air can only pass through the middle of the filter 3. The adhesive material can be made of AB glue, ultrasonic adhesive, foam glue, etc., which can further adhere to the frame formed by the mounting mechanism 2 during installation, preventing the filter 3 from falling.

[0030] Example 1

[0031] like Figure 1As shown, in this embodiment, the mounting mechanism 2 and the outer frame 1 are an integrated structure and can be connected by welding or other methods. When cleaning or replacing the filter 3, the filter 3 can be directly removed and installed through the bottom opening and the function of the movable door 4 is utilized. The filter 3 can be installed on both inclined sides of each mounting mechanism 2. Multiple mounting mechanisms 2 can be provided and arranged on the outer frame 1 with the opening side as the plane. Connecting rods 26 are also provided between the top surfaces of the multiple mounting mechanisms 2 to strengthen the connection stability between the mounting mechanisms 2 and prevent the structure from shifting and affecting the air filtering effect of the filter 3.

[0032] Example 2

[0033] like Figure 2 As shown, unlike Example 1, in this embodiment, the outer frame 1 is a whole, and the mounting mechanism 2 is assembled by snapping together. First, the vertical sides of the mounting mechanism 2 are inserted into the two opposite inner sides of the outer frame 1, and then the two ends of the top surface of the mounting mechanism 2 are limited and installed by the groove formed at the connecting rod 26. The top surface is connected to the two inclined side surfaces, and the inner side of the top surface is hinged to the movable door 4. Then, when the movable door 4 is rotated to the inclined side close to the mounting mechanism 2, it can cooperate with each other to install the filter 3. In addition, in order to facilitate the installation of the filter into the pipe and seal the installation gap, when the mounting mechanism 2 is connected to the inner side of the outer frame 1, a sealing layer 5 is arranged on the upper and lower sides of the outer frame 1 to make up for the gap when the outer frame 1 is installed with other mechanisms, and at the same time, it can also cover the gap between the mounting mechanism 2 and the outer frame 1.

[0034] Example 3

[0035] like Figure 3-Figure 6As shown, in this embodiment, the outer frame 1 and the mounting mechanism 2, including all other components, are assembled from individual small parts. This makes transportation and replacement of corresponding parts easy. In the event of damage, the entire assembly does not need to be replaced, reducing maintenance costs and allowing the filter size to be adjusted according to actual conditions. The mounting mechanism 2 includes two trapezoidal baffles 21 inserted into the outer frame 1 and arranged opposite each other. The baffles 21 are trapezoidal in shape. The top and side surfaces between the two baffles 21 are respectively provided with a connecting plate 22 and a pressure plate 23. The movable door 4 is hinged to the inner side of the connecting plate 22. The pressure plate 23 has a hollow center portion and is used to cooperate with the movable door 4 to install the filter 3. The mounting mechanism 2 is mainly composed of two baffles 21, a connecting plate 22, and two pressure plates 23, forming a trapezoidal column. The two baffles 21 are located on opposite inner sides of the outer frame 1 and can be connected by means of a slot or other means. The connecting plate 22 is inserted on the top side of the two baffles 21, and two pressure plates 23 are inserted on the two inclined sides. The width formed by the inner side of the outer frame 1 is used to compress the baffles 21 and form the mounting mechanism 2. In addition, both sides of the top surface of the baffle 21 are provided with a slot, and the connecting rod 26 is detachably connected between each two side-by-side baffles 21 through the slot. The connecting rod 26 can also be installed in a detachable manner, so that the number of mounting mechanisms 2 used can be selected, and then connected in sequence through the connecting rod 26 to adapt to the needs of different duct air filtration.

[0036] Furthermore, the bottom side of the baffle 21 is curved inwardly and provided with a protrusion 24. The movable door 4 is provided with a through-hole that matches the protrusion 24. A support plate 25 for supporting the bottom side of the filter 3 is detachably connected to the bottom side between the two baffles 21. The mounting mechanism 2 also includes a support plate 25 for supporting the filter 3 after installation. This support plate 25 is connected by a snap-fitting portion formed by the inward curvature of the baffle 21. The snap-fitting portion may be provided with a protrusion 24 to further secure the movable door 4 in position on the opening side, ensuring that the movable door 4 is tightly against the filter 3 and the pressure plate 23. Furthermore, a lever, such as a rotatable lever, may be provided at this location to rotate its protruding portion below the movable door 4, and a corresponding slot may be provided on the movable door 4 to prevent the movable door 4 from sliding outward. Furthermore, a groove is provided on one side of the movable door 4 close to the support plate 25, so that a slot is left on the plane formed by the bottom side of the movable door 4 and the support plate 25 for the user to move the movable door 4, making it easy to open the movable door 4 to replace the filter 3.

[0037] Furthermore, the outer frame 1 includes four crossbars 11 and four right-angle connectors 12, which are arranged at intervals and are detachably connected in sequence. To accommodate the use of different numbers of mounting mechanisms 2, the outer frame 1 is also composed of detachable components. The four crossbars 11 and the four right-angle connectors 12 are spliced ​​and combined one by one to form a rectangular structure of the outer frame 1, which is used to frame the bottom sides of multiple mounting mechanisms 2. Depending on the number, length, width, and other data of the mounting mechanisms 2, crossbars 11 of different lengths can be selected for assembly. After being connected using a slot or other method, the assembled outer frame 1 is further formed into a whole by cooperation with the sealing layers 5 on the upper and lower sides. The sealing layers 5 also serve to ensure the airtightness of the connection between the crossbars 11 and the right-angle connectors 12.

[0038] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application.

[0039] In the figure, the description of the positional relationship is only for illustrative purposes and should not be understood as a limitation on this patent; obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A filter that is easy to replace the filter screen, characterized in that: The invention comprises an outer frame (1), a filter screen (3) and a movable door (4); at least one mounting mechanism (2) is provided on one side of the outer frame (1) extending outward; the mounting mechanism (2) is used to mount the filter screen (3); two opposite sides of the mounting mechanism (2) are symmetrically arranged and tilted, and the side of the mounting mechanism (2) close to the outer frame (1) is open; the movable door (4) is detachably connected to the inside of the mounting mechanism (2); the movable door (4) is used to cooperate with the inner side of the mounting mechanism (2) to mount the filter screen (3); The mounting mechanism (2) comprises two baffles (21) inserted on the outer frame (1) and arranged opposite to each other, the baffles (21) being trapezoidal, the top surface and two side surfaces between the two baffles (21) being respectively provided with a connecting plate (22) and a pressing plate (23), the movable door (4) being hinged on the inner side of the connecting plate (22), the middle portion of the pressing plate (23) being hollowed out and used to cooperate with the movable door (4) to mount the filter screen (3); the mounting mechanisms (2) are in plurality and arranged on the outer frame (1) with the opening side as a plane, and connecting rods (26) are further provided between the top surfaces of the plurality of mounting mechanisms (2); card slots are provided on both sides of the top surface of the baffles (21), and the connecting rod (26) is detachably connected between each two side-by-side baffles (21) through the card slots.

2. A filter that is easy to replace the filter screen according to claim 1, characterized in that: Each of the mounting mechanisms (2) is hingedly provided with two movable doors (4), one end of which extends toward the opening side of the mounting mechanism (2) and is detachably connected to the bottom side of the mounting mechanism (2); the two movable doors (4) rotate along the hinges, respectively, so as to approach or move away from the two inner sides of the mounting mechanism (2) that are arranged obliquely.

3. A filter that is easy to replace the filter screen according to claim 2, characterized in that: The bottom side of the baffle (21) is bent inward and provided with a protrusion (24); the movable door (4) is provided with a through hole adapted to the protrusion (24); and a support plate (25) for supporting the bottom side of the filter screen (3) is detachably connected to the bottom side between the two baffles (21).

4. A filter that is easy to replace the filter screen according to claim 3, characterized in that: Both sides of the top surface of the baffle (21) are provided with a clamping slot, and the connecting rod (26) is detachably connected between every two baffles (21) arranged side by side through the clamping slot.

5. A filter for easy replacement of filter screen according to any one of claims 1 to 4, characterized in that: The outer frame (1) comprises four cross bars (11) and four right-angle connectors (12); the cross bars (11) and the right-angle connectors (12) are arranged at intervals and are detachably connected in sequence.

6. A filter that is easy to replace the filter screen according to claim 5, characterized in that: The mounting mechanism (2) is connected to the inner side of the outer frame (1), and sealing layers (5) are arranged on both the upper and lower sides of the outer frame (1).

7. A filter that is easy to replace the filter screen according to claim 1 or 6, characterized in that: The outer side of the filter screen (3) is wrapped with a sealing strip, and the sealing strip is coated with adhesive material.

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