Outward turning box type high-efficiency filter

Abstract

The utility model discloses an outward turning box type high-efficiency filter, which belongs to the technical field of filtration, and comprises an air outlet and a box type filter, the box type filter comprises a filter frame and a filter screen, the inner side surface of the filter frame is provided with a through screw hole, the side wall of the air outlet is provided with a matching screw hole in a matching manner, and the filter screen is arranged in the filter frame. A connecting screw is in threaded connection between the matching screw hole and the penetrating screw hole, a hexagonal hole is formed in the end of the connecting screw, a square groove is formed in one side face of the filter frame, the filter screen is placed in the square groove, a pressing frame is installed on the square groove, and positioning holes are formed in the pressing frame and the square groove in a matched mode. By means of the mode, separation of the filter screen and the filter frame is achieved, and cleaning and replacement of the filter screen are facilitated.

Description

Technical Field

[0001] The utility model relates to the field of filtration, in particular to an outward-turning box-type high-efficiency filter. Background Art

[0002] Box filter is a high-efficiency filter used to filter particles and pollutants in the air. It is often installed at the square air outlet of indoor central air conditioning and centralized ventilation systems to maintain the quality of indoor air and reduce bacteria and viruses in the air. Box filter usually consists of a filter medium and a filter frame.

[0003] The current Chinese patent application number CN202223496592.X discloses an outward-turned box-type high-efficiency filter, including filter cotton and a high-efficiency filter frame sleeved on the outside of the filter cotton, the bottom of the high-efficiency filter frame is provided with an installation limit groove, and one side of the installation limit groove is provided with an installation notch; the installation limit groove is provided with an outward-turned sliding limit device, and the outward-turning direction of the sliding limit device is on the side of the installation notch. The device is installed and connected by grooving on the outer side of the filter frame. The box filter needs to be removed for cleaning and replacement after long-term use, and the filter medium cannot be removed from the filter frame, which is inconvenient for cleaning and replacement.

[0004] Based on this, the utility model designs an outward-folding box-type high-efficiency filter to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the utility model provides an outward-folding box-type high-efficiency filter.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] An outward-turned box-type high-efficiency filter comprises an air outlet and a box-type filter, wherein the box-type filter comprises a filter frame and a filter screen, a through screw hole is provided on the inner side surface of the filter frame, a matching screw hole is provided on the side wall of the air outlet, a connecting screw is threadedly connected between the matching screw hole and the through screw hole, a hexagonal hole is provided at the end of the connecting screw, a square groove is provided on one side surface of the filter frame, the filter screen is placed in the square groove, a pressing frame is installed on the square groove, a positioning hole is provided on the pressing frame and the square groove, a positioning screw is threadedly connected in the positioning hole, and a square hole is provided at the end of the positioning screw;

[0008] Furthermore, the through screw hole is arranged near the edge of one end of the filter frame, the through screw hole is arranged on the four end faces inside the filter frame, the diameter of the end of the connecting screw is equal to the diameter of the through screw hole and its length is equal to the sum of the depths of the through screw hole and the matching screw hole;

[0009] Furthermore, the square groove is arranged on the other side of the filter frame away from the through screw hole, the size of the outer edge of the pressing frame is equal to the size of the outer edge of the square groove, and the size of the inner edge of the pressing frame is equal to the size of the inner edge of the filter frame;

[0010] Furthermore, the positioning holes are arranged at the corners of the pressing frame and the square groove, the diameter of the end of the positioning screw is equal to the diameter of the positioning hole, and the length of the positioning screw is equal to the sum of the depths of the positioning holes on the pressing frame and the square groove;

[0011] Furthermore, a pressing member is installed in the square groove, and the pressing member includes a main pressing plate, an auxiliary pressing plate and a pressing strip. The top of the square groove is provided with a main shallow groove and an auxiliary shallow groove. The main pressing plate and the auxiliary pressing plate are placed on the filter screen. The pressing strip is installed on the side of the main pressing plate. The side of the pressing frame is provided with a main pressing groove and an auxiliary pressing groove.

[0012] Furthermore, the thickness of the main pressure plate and the auxiliary pressure plate is smaller than the thickness of the pressure frame, the main pressure groove and the main shallow groove are arranged in conjunction with the main pressure plate, and the auxiliary pressure groove and the auxiliary shallow groove are arranged in conjunction with the auxiliary pressure plate;

[0013] Furthermore, a slide groove is provided on the side of the main pressure plate, a slider slides in the slide groove, and the pressure strip is fixed on the side of the slider;

[0014] Furthermore, the slide groove is arranged through the side of the main pressure plate;

[0015] Beneficial Effects

[0016] 1. Through screw holes, matching screw holes, connecting screws and hexagonal holes are provided, and the matching screw holes and through screw holes are connected by connecting screws to fix the box filter. When the box filter needs to be replaced and cleaned, only the connecting screws need to be removed by the hexagonal holes to remove the box filter. Positioning holes, positioning screws and square holes are provided, and the positioning screws can be removed through the square holes to separate the filter screen from the filter frame, which is convenient for cleaning and replacement of the filter screen.

[0017] 2. By setting the main pressure plate, auxiliary pressure plate, main shallow groove, auxiliary shallow groove, main pressure groove and auxiliary pressure groove, and utilizing their cooperation, the installation and positioning of the pressure frame is facilitated; by setting the slide groove and the slider, the slide groove runs through the side of the main pressure plate, and utilizing the sliding cooperation of the slide groove and the slider to adjust the position of the pressure strip, the filter screen is further compressed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a three-dimensional diagram of the main structure of an outward-turned box-type high-efficiency filter of the utility model;

[0020] Figure 2 This is a three-dimensional diagram of the air outlet structure of an outward-turned box-type high-efficiency filter of the utility model;

[0021] Figure 3 It is a three-dimensional diagram of the filter frame structure of an outward-turned box-type high-efficiency filter of the utility model;

[0022] Figure 4 It is a three-dimensional diagram of the enlarged structure of part A of an outward-turning box-type high-efficiency filter of the utility model;

[0023] Figure 5 It is a three-dimensional diagram of the pressing frame structure of an outward-turning box-type high-efficiency filter of the utility model;

[0024] Figure 6 It is a three-dimensional diagram of the enlarged structure of part B of an outward-turning box-type high-efficiency filter of the utility model;

[0025] Figure 7 This is a three-dimensional diagram of the structure of a compression piece of an outward-turned box-type high-efficiency filter of the utility model;

[0026] Figure 8 It is a three-dimensional diagram of the enlarged structure of the C part of an outward-folding box-type high-efficiency filter of the utility model.

[0027] The numbers in the figure represent:

[0028] 1. Air outlet; 2. Filter frame; 3. Filter screen; 4. Through screw hole; 5. Matching screw hole; 6. Connecting screw; 7. Hexagonal hole; 8. Square groove; 9. Press frame; 10. Positioning hole; 11. Positioning screw; 12. Square hole; 13. Main pressure plate; 14. Auxiliary pressure plate; 15. Pressure strip; 16. Main shallow groove; 17. Auxiliary shallow groove; 18. Main pressure groove; 19. Auxiliary pressure groove; 20. Slide groove; 21. Slider. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] The utility model is further described below in conjunction with embodiments.

[0031] In some embodiments, please refer to the attached instructions. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , an outward-turned box-type high-efficiency filter, an air outlet 1 and a box-type filter, the box-type filter includes a filter frame 2 and a filter screen 3, a through screw hole 4 is provided on the inner side of the filter frame 2, the through screw hole 4 is arranged near the edge of one end of the filter frame 2, the through screw hole 4 is arranged on the four end faces of the inner side of the filter frame 2, a matching screw hole 5 is provided on the side wall of the air outlet 1, a connecting screw 6 is threadedly connected between the matching screw hole 5 and the through screw hole 4, the diameter of the end of the connecting screw 6 is equal to the diameter of the through screw hole 4 and its length is equal to the sum of the depths of the through screw hole 4 and the matching screw hole 5, a hexagonal hole 7 is provided on the end of the connecting screw 6, a square groove 8 is provided on one side of the filter frame 2, and the square groove 8 is away from the through screw hole The screw hole 4 is arranged on the other side of the filter frame 2, the filter screen 3 is placed in the square groove 8, a pressing frame 9 is installed on the square groove 8, the size of the outer edge of the pressing frame 9 is equal to the size of the outer edge of the square groove 8, the size of the inner edge of the pressing frame 9 is equal to the size of the inner edge of the filter frame 2, the pressing frame 9 and the square groove 8 are matched with positioning holes 10, the positioning holes 10 are arranged at the corners of the pressing frame 9 and the square groove 8, a positioning screw 11 is connected to the inner thread of the positioning hole 10, the diameter of the end of the positioning screw 11 is equal to the diameter of the positioning hole 10, the length of the positioning screw 11 is equal to the sum of the depths of the positioning holes 10 on the pressing frame 9 and the square groove 8, and a square hole 12 is arranged at the end of the positioning screw 11;

[0032] In the embodiment of the utility model, when it is used, the box filter is installed at the air outlet 1, the filter screen 3 is first placed in the square groove 8, and then the filter screen 3 is pressed and fixed by the pressing frame 9, and the positioning screw 11 is threadedly connected to the positioning hole 10, so that the pressing frame 9 is fixed on the filter frame 2, and then the filter frame 2 is arranged to fit the inner wall of the air outlet 1, and the connecting screw 6 is threadedly connected to the matching screw hole 5 and the through screw hole 4 to achieve the fixation of the box filter. When it is necessary to replace and clean the box filter, it is only necessary to remove the connecting screw 6 using the hexagonal hole 7 to realize the removal of the box filter, and further remove the positioning screw 11 through the square hole 12 to realize the separation of the filter screen 3 and the filter frame 2, so as to facilitate the cleaning and replacement of the filter screen 3;

[0033] In the embodiment of the utility model, by setting the through screw hole 4, the matching screw hole 5, the connecting screw 6 and the hexagonal hole 7, the matching screw hole 5 and the through screw hole 4 are threadedly connected by the connecting screw 6 to achieve the fixation of the box filter. When the box filter needs to be replaced and cleaned, it is only necessary to remove the connecting screw 6 using the hexagonal hole 7 to achieve the removal of the box filter; by setting the positioning hole 10, the positioning screw 11 and the square hole 12, the positioning screw 11 can be further removed through the square hole 12 to achieve the separation of the filter 3 and the filter frame 2, so as to facilitate the cleaning and replacement of the filter 3.

[0034] In some embodiments, Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, as a preferred embodiment of the utility model, a clamping member is installed in the square groove 8, and the clamping member includes a main pressure plate 13, an auxiliary pressure plate 14 and a pressure strip 15. The thickness of the main pressure plate 13 and the auxiliary pressure plate 14 is less than the thickness of the pressure frame 9. A main shallow groove 16 and an auxiliary shallow groove 17 are provided at the top of the square groove 8. The main pressure plate 13 and the auxiliary pressure plate 14 are placed on the filter screen 3. The pressure strip 15 is installed on the side of the main pressure plate 13. A main pressure groove 18 and an auxiliary pressure groove 19 are provided on the side of the pressure frame 9. The main pressure groove 18 and the main shallow groove 16 are provided in conjunction with the main pressure plate 13, and the auxiliary pressure groove 19 and the auxiliary shallow groove 17 are provided in conjunction with the auxiliary pressure plate 14. A slide groove 20 is provided on the side of the main pressure plate 13. The slide groove 20 runs through the side of the main pressure plate 13. A slider 21 slides in the slide groove 20, and the pressure strip 15 is fixed on the side of the slider 21.

[0035] In the embodiment of the utility model, when it is used, the box filter is installed at the air outlet 1, the filter screen 3 is first placed in the square groove 8, and then the main pressure plate 13 and the auxiliary pressure plate 14 are pressed on the filter screen 3 under the cooperation of the main shallow groove 16 and the auxiliary shallow groove 17, and then the filter screen 3 is pressed and fixed by the pressure frame 9, and the auxiliary pressure frame 9 is installed under the cooperation of the main pressure groove 18 and the auxiliary pressure groove 19, and finally the positioning screw 11 is threadedly connected to the positioning hole 10, so that the pressure frame 9 is fixed on the filter frame 2, and the slide groove 20 and the slider 21 are used. The filter 3 is further compressed by adjusting the position of the pressure strip 15, and then the filter frame 2 is set against the inner wall of the air outlet 1, and the screw hole 5 and the through screw hole 4 are threadedly connected by the connecting screw 6 to fix the box filter. When the box filter needs to be replaced and cleaned, it is only necessary to remove the connecting screw 6 by using the hexagonal hole 7 to remove the box filter, and further remove the positioning screw 11 through the square hole 12 to separate the filter 3 and the filter frame 2, so as to facilitate the cleaning and replacement of the filter 3;

[0036] In the embodiment of the utility model, by setting the main pressure plate 13, the auxiliary pressure plate 14, the main shallow groove 16, the auxiliary shallow groove 17, the main pressure groove 18 and the auxiliary pressure groove 19, the cooperation of which is utilized to facilitate the installation and positioning of the pressure frame 9; by setting the slide groove 20 and the slider 21, the slide groove 20 is arranged through the side of the main pressure plate 13, and the sliding cooperation of the slide groove 20 and the slider 21 is utilized to adjust the position of the pressure strip 15 to further tighten the filter 3.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An outward-turned box-type high-efficiency filter, comprising an air outlet (1) and a box-type filter, characterized in that: The box filter comprises a filter frame (2) and a filter screen (3); a through screw hole (4) is provided on the inner side surface of the filter frame (2); a matching screw hole (5) is provided on the side wall of the air outlet (1); a connecting screw (6) is threadedly connected between the matching screw hole (5) and the through screw hole (4); a hexagonal hole (7) is provided at the end of the connecting screw (6); a square groove (8) is provided on one side surface of the filter frame (2); the filter screen (3) is placed in the square groove (8); a pressing frame (9) is installed on the square groove (8); a positioning hole (10) is provided on the pressing frame (9) and the square groove (8); a positioning screw (11) is threadedly connected to the inner surface of the positioning hole (10); a square hole (12) is provided at the end of the positioning screw (11).

2. The outward-turned box-type high efficiency filter according to claim 1, characterized in that: The through screw hole (4) is arranged near the edge of one end of the filter frame (2), and the through screw hole (4) is arranged on four end faces inside the filter frame (2). The diameter of the end of the connecting screw (6) is equal to the diameter of the through screw hole (4), and its length is equal to the sum of the depths of the through screw hole (4) and the matching screw hole (5).

3. The outward-turned box-type high efficiency filter according to claim 2, characterized in that: The square groove (8) is arranged on the other side of the filter frame (2) away from the through screw hole (4); the size of the outer edge of the pressing frame (9) is equal to the size of the outer edge of the square groove (8); and the size of the inner edge of the pressing frame (9) is equal to the size of the inner edge of the filter frame (2).

4. The outward-turned box-type high efficiency filter according to claim 3, characterized in that: The positioning hole (10) is arranged at the corners of the pressing frame (9) and the square groove (8), the diameter of the end of the positioning screw (11) is equal to the diameter of the positioning hole (10), and the length of the positioning screw (11) is equal to the sum of the depths of the positioning holes (10) on the pressing frame (9) and the square groove (8).

5. The outward-turned box-type high efficiency filter according to claim 4, characterized in that: A clamping member is installed in the square groove (8), and the clamping member includes a main pressure plate (13), an auxiliary pressure plate (14) and a pressure strip (15). The top of the square groove (8) is provided with a main shallow groove (16) and an auxiliary shallow groove (17). The main pressure plate (13) and the auxiliary pressure plate (14) are placed on the filter screen (3). The pressure strip (15) is installed on the side of the main pressure plate (13). The side of the pressure frame (9) is provided with a main pressure groove (18) and an auxiliary pressure groove (19).

6. The outward-turned box-type high efficiency filter according to claim 5, characterized in that: The thickness of the main pressure plate (13) and the auxiliary pressure plate (14) is smaller than the thickness of the pressure frame (9); the main pressure groove (18) and the main shallow groove (16) are arranged in conjunction with the main pressure plate (13); and the auxiliary pressure groove (19) and the auxiliary shallow groove (17) are arranged in conjunction with the auxiliary pressure plate (14).

7. The outward-turned box-type high efficiency filter according to claim 6, characterized in that: A sliding groove (20) is provided on the side of the main pressure plate (13), a sliding block (21) slides in the sliding groove (20), and the pressure strip (15) is fixed on the side of the sliding block (21).

8. The outward-turned box-type high efficiency filter according to claim 7, characterized in that: The slide groove (20) is arranged through the side surface of the main pressure plate (13).

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