A panel type primary filter

Abstract

The utility model discloses a kind of plate primary efficiency filters, comprising: outer frame and inner frame, the outer frame and the window of being penetrated in the middle part of inner frame, the inner frame is pivotedly connected in the window of the outer frame;The inner frame is opened with frame type containing space, the opening section of the inner frame is equipped with the import of being placed into the containing space for filter, the transverse width of the containing space is greater than the transverse width of the filter;The side of the opening section of the inner frame is equipped with locking member for fixing the inner frame on the outer frame;The outer side of the inner frame is equipped with abutting member for extending into the containing space and abutting and fixing the filter;The utility model can solve the problem that traditional plate primary efficiency filter is inconvenient to replace filter material, and filter material is not firmly fixed and is easy to produce noise.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning and ventilation accessories, specifically to a plate-type primary filter. Background Technology

[0002] Panel pre-filters are core filtration components widely used in air conditioning and ventilation systems to intercept large particulate pollutants and protect downstream high-efficiency filters and equipment. Traditional panel pre-filters typically employ a fixed frame structure, with the filter media directly installed within the outer frame via slots or bolts. Replacing the filter media requires disassembling the entire frame, resulting in complex replacement procedures. Furthermore, gaps often exist between the filter media and the frame in traditional panel pre-filters, which can easily cause vibration of the filter media during system operation due to airflow impact, generating continuous noise pollution. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a plate-type primary filter.

[0004] To achieve the above objectives, the technical solution adopted by this utility model includes: an outer frame and an inner frame, both of which have through windows in the middle, and the inner frame is pivotally connected to the window of the outer frame; the inner frame has a frame-shaped accommodating space, and the opening section of the inner frame has an inlet for inserting a filter into the accommodating space, the lateral width of the accommodating space being greater than the lateral width of the filter; the side of the opening section of the inner frame has a locking member for fixing the inner frame to the outer frame; the outer side of the inner frame has a clamping member for extending into the accommodating space and abutting against and fixing the filter.

[0005] The beneficial effects of this utility model are:

[0006] This application uses hinges to connect the inner frame and the outer frame, which facilitates the rotation of the inner frame relative to the outer frame. The filter can be detachably installed in the accommodating space of the inner frame, which is convenient for replacement. In addition, the clamping parts installed on the inner frame can firmly fix the filter against the inner wall of the accommodating space, reducing the problem of vibration and noise caused by airflow disturbance.

[0007] In the preferred embodiment of the above-mentioned plate-type primary filter, the clamping member includes a bolt threaded onto the inner frame and a diameter enlargement portion rotatably mounted on the end of the bolt.

[0008] In the preferred embodiment of the above-mentioned plate-type primary filter, a ball is rotatably mounted on the diameter enlargement portion toward the filter side, and the ball at least partially protrudes from the surface of the diameter enlargement portion.

[0009] In the preferred embodiment of the above-mentioned plate-type primary filter, a stainless steel wire mesh covering the window of the inner frame is installed on the outer side of the inner frame.

[0010] In the preferred embodiment of the above-mentioned plate-type primary filter, a sealing strip is installed around the inner perimeter of the window of the outer frame, so that when the inner frame is placed inside the window of the outer frame, the inner side of the inner frame abuts against the sealing strip.

[0011] In the preferred embodiment of the above-mentioned plate-type primary filter, the inner frame is rotatably mounted inside the window of the outer frame via a hinge.

[0012] In the preferred embodiment of the above-mentioned plate-type primary filter, the outer frame and the inner frame are made of aluminum alloy.

[0013] In the preferred embodiment of the above-mentioned plate-type primary filter, a push plate is installed on one side of the inner frame accommodating space near the pivot section of the inner frame via an elastic element. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the inner frame fitting into the outer frame;

[0015] Figure 2 A diagram showing the inner frame open relative to the outer frame. Figure 1 ;

[0016] Figure 3 A diagram showing the inner frame open relative to the outer frame. Figure 2 ;

[0017] Figure 4 This is a cross-sectional view of the present invention;

[0018] In the diagram: outer frame 1, inner frame 2, accommodating space 21, inlet 22, pivot section 23, opening section 24, filter 3, locking element 4, clamping element 5, bolt 51, diameter enlargement section 52, ball bearing 53, stainless steel wire mesh 6, sealing strip 7, elastic element 8, push plate 9. Detailed Implementation

[0019] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0020] It should be noted that in the description of the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0021] In addition, it should also be noted that in the description of the present utility model, unless otherwise clearly specified and limited, the terms "set", "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. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] As Figures 1 to 4 shown, the plate-type primary filter 3 of the present utility model includes: an outer frame 1 and an inner frame 2. Both the middle parts of the outer frame 1 and the inner frame 2 have through windows. The inner frame 2 is pivotally connected within the window of the outer frame 1; the inner frame 2 is provided with a frame-shaped accommodation space 21. An inlet 22 for placing the filter 3 into the accommodation space 21 is provided at the opening section 24 of the inner frame 2. The lateral width of the accommodation space 21 is greater than the lateral width of the filter 3; a locking member 4 for fixing the inner frame 2 to the outer frame 1 is provided on the side of the opening section 24 of the inner frame 2; a pressing member 5 for extending into the accommodation space 21 and abutting and fixing the filter 3 is provided on the outer side of the inner frame 2.

[0023] See Figures 1 to 3 , both the outer frame 1 and the inner frame 2 are of a frame structure. Both the outer frame 1 and the inner frame are provided with "mouth"-shaped windows. The inner frame 2 has a pivoting section 23 and an opening section 24. The pivoting section 23 and the opening section 24 are two opposite sides of the inner frame 2. The pivoting section 23 of the inner frame 2 is pivotally connected within the window of the outer frame. An accommodation space 21 for accommodating the filter 3 is provided inside the inner frame 2. An inlet 22 communicating with the accommodation space 21 is provided at the opening section 24 of the inner frame 2. Along the width direction of the inner frame 2, the lateral width of the accommodation space 21 is greater than the lateral width of the filter 3, so as to facilitate the filter 3 to be taken and placed in the accommodation space 21 of the inner frame 2 through the inlet 22 of the inner frame 2.

[0024] See Figures 1 to 3To reduce noise generated by the filter 3 due to vibration within the accommodating space 21, this application installs a retaining member 5 on the outer side of the inner frame 2. The retaining member 5 can extend into the accommodating space 21 and abut against and fix the filter 3 against the inner wall of the accommodating space 21 of the inner frame 2, thereby reducing the noise generated by the filter 3 due to vibration. In addition, to ensure the connection strength between the inner frame 2 and the outer frame 1, this application installs a locking member 4 on the outer side of the inner frame 2 near the opening section 24. The locking member 4 is used to lock and fix the inner frame 2 and the outer frame 1. Specifically, the locking member 4 can be a perforated pin plate installed on the outer side of the inner frame 2 near the opening section 24 and a stud threaded through the hole of the pin plate and screwed onto the outer frame 1.

[0025] Specifically, when replacing the filter 3, first unlock the locking piece 4, then pull the inner frame 2 outward to expose the opening section 24 of the inner frame 2, releasing the abutment piece 5 from the filter 3. After that, the filter 3 can be pulled out of the accommodating space 21 of the inner frame 2 and replaced. It has the characteristics of simple structure and convenient operation, and is practical.

[0026] In one or more embodiments, the clamping member 5 includes a bolt 51 threaded onto the inner frame 2 and a diameter enlargement 52 rotatably mounted on the end of the bolt 51; a ball 53 is rotatably mounted on the diameter enlargement 52 toward the filter 3, and the ball 53 at least partially protrudes from the surface of the diameter enlargement 52.

[0027] See Figures 2 to 4 The clamping member 5 includes a bolt 51 and a diameter enlargement 52 rotatably mounted on one end of the bolt 51. A ball bearing 53 is rotatably mounted on the surface of the diameter enlargement 52 near the filter 3. After the filter 3 is placed in the receiving space 21 of the inner frame 2, the bolt 51 can be tightened to move the diameter enlargement 52 toward the filter 3. When the ball bearing 53 on the diameter enlargement 52 abuts against the frame of the filter 3, the tightening of the bolt 51 can be stopped. At this time, the frame of the filter 3 is abutted against the inner wall of the receiving space 21 of the inner frame 2. The ball bearing 53 allows the filter 3 to be pulled out even without reversing the tightening of the bolt 51, facilitating quick installation and removal of the filter 3 while reducing noise generation.

[0028] In one or more embodiments, a stainless steel wire mesh 6 is installed on the outer side of the inner frame 2 to cover the window of the inner frame 2. See also Figures 1 to 3 The stainless steel wire mesh 6 can cover the outer side of the window of the inner frame 2, reducing the problem of filter 3 being damaged by debris touching the filter 3 and extending the service life of the filter 3.

[0029] In one or more embodiments, a sealing strip 7 is installed around the inner perimeter of the window of the outer frame 1, so that when the inner frame 2 is placed inside the window of the outer frame 1, the inner side of the inner frame 2 abuts against the sealing strip 7.

[0030] See Figure 2 The sealing strip 7 can be made of rubber. The sealing strip 7 is installed in a U-shape around the inner perimeter of the window of the outer frame 1. When the inner frame 2 is closed with the outer frame 1, the inner side of the inner frame 2 is pressed against the sealing strip 7, which reduces noise generation and further reduces the gap between the inner frame 2 and the outer frame 1, thus reducing the air leakage rate.

[0031] In one or more embodiments, the inner frame 2 is hinged and rotatably mounted inside the window of the outer frame 1. This arrangement reduces the frictional force when the inner frame 2 rotates relative to the outer frame 1, facilitating the opening and closing of the inner frame 2.

[0032] In one or more embodiments, the outer frame 1 and the inner frame 2 are made of aluminum alloy. The inner frame 2 and the outer frame 1 made of aluminum alloy have high strength, which can enhance their service life.

[0033] In one or more embodiments, a push plate 9 is mounted on the side of the inner frame 2 containing space 21 near the pivot section 23 of the inner frame 2 via an elastic member 8.

[0034] See Figure 3 , Figure 4 The elastic element 8 can be a spring or a rubber airbag, and the push plate 9 is installed in the receiving space 21 of the inner frame 2 by means of the elastic element 8. When the filter 3 is installed in the receiving space 21 of the inner frame 2, the filter 3 pushes the push plate 9 and compresses the elastic element 8. When the filter 3 is replaced, the push plate 9 can push the end of the filter 3 at least partially out of the inlet 22 of the inner frame 2 by means of the elastic force of the elastic element 8, so as to facilitate the extraction of the filter 3 from the inner frame 2.

[0035] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A plate-type pre-filter, characterized in that, include: An outer frame and an inner frame, both of which have through windows in the middle, with the inner frame pivotally connected to the windows of the outer frame; The inner frame has a frame-shaped accommodating space, and the opening section of the inner frame has an inlet for the filter to be placed into the accommodating space. The lateral width of the accommodating space is greater than the lateral width of the filter. The inner frame opening section has a locking member on its side for fixing the inner frame to the outer frame; the outer side of the inner frame has a clamping member for extending into the accommodating space and abutting against and fixing the filter.

2. The plate-type pre-filter according to claim 1, characterized in that: The clamping element includes a bolt threaded onto the inner frame and a diameter enlargement rotatably mounted on the end of the bolt.

3. The plate-type pre-filter according to claim 2, characterized in that: The enlarged diameter section is rotatably mounted with a ball on the side facing the filter, and the ball at least partially protrudes from the surface of the enlarged diameter section.

4. The plate-type pre-filter according to claim 1, characterized in that: The outer side of the inner frame is fitted with a stainless steel wire mesh that covers the window of the inner frame.

5. The plate-type pre-filter according to claim 1, characterized in that: A sealing strip is installed around the inner perimeter of the window of the outer frame, so that when the inner frame is placed inside the window of the outer frame, the inner side of the inner frame abuts against the sealing strip.

6. The plate-type pre-filter according to claim 1, characterized in that: The inner frame is hinged and rotated within the window of the outer frame.

7. The plate-type pre-filter according to claim 1, characterized in that: The outer frame and inner frame are made of aluminum alloy.

8. The plate-type pre-filter according to claim 1, characterized in that: A push plate is installed in the inner frame accommodating space on one side near the pivot section of the inner frame via an elastic element.

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