Primary dedusting and filtering device

Abstract

The primary dust removal filtering device comprises a sliding groove, the front portion and the rear portion of the inner side of the sliding groove are both slidably connected with movable plates, the left side and the right side of the middle of each movable plate are both provided with limiting holes, the inner sides of the limiting holes penetrate through and are slidably connected with limiting rods, and the limiting rods are fixedly connected to the left portion and the right portion of the inner side of the sliding groove respectively. The middle of each sliding groove is rotationally connected with a two-way screw, and the movable plates are in threaded connection to the front side and the rear side of the periphery of each two-way screw. According to the primary dust removal filtering device, when a filter element of the filtering device needs to be replaced, rotary knobs on the two sides are rotated, a two-way screw rod is driven to rotate in the rotating process of the rotary knobs, and moving plates on the front side and the rear side are far away from each other in the rotating process of the two-way screw rod, so that clamping blocks on the two sides are far away from each other; after the fixing of the filter element on the inner side is removed, the filter element is detached from the inner side of the mounting frame for replacement, and the mounting frame does not need to be replaced, so that the use cost of the primary dust removal filtering device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal, in particular to a primary dust removal and filtering device. Background Art

[0002] The primary dust removal and filtration device is also called the primary filter. The primary filter is suitable for the primary filtration of the air-conditioning system, and is mainly used to filter dust particles larger than 5μm. The primary filter has three styles: plate type, folding type, and bag type. The outer frame materials include paper frame, aluminum frame, galvanized iron frame, and the filter materials include non-woven fabrics, nylon mesh, activated carbon filter materials, metal mesh, etc. The protective nets include double-sided plastic-sprayed wire mesh and double-sided galvanized wire mesh. The outer frame of the filter is composed of a sturdy waterproof board to fix the folded filter material. The diagonal design on the outer frame can provide a large filtration area and make the internal filter material tightly adhere to the outer frame. The filter is bonded to the outer frame with special professional adhesive glue on all sides to prevent air leakage or damage due to wind resistance pressure.

[0003] In the prior art, the internal filter element of the primary dust removal filter device is usually fixed by gluing. Although this fixing method is firm, it is not convenient for the subsequent replacement of the filter element. Usually, the filter element and the frame need to be replaced together, which increases the use cost of the filter device. In addition, the primary dust removal filter device requires a long time and is difficult to install, which also reduces the practicality of the primary dust removal filter device. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] The utility model discloses a primary dust removal and filtering device, comprising a mounting frame, wherein the left and right sides of the mounting frame are provided with a clamping and fixing mechanism, and the upper and lower sides of the mounting frame are provided with a quick disassembly and assembly mechanism;

[0006] The clamping and fixing mechanism includes a slide groove, and the front and rear parts of the inner side of the slide groove are slidably connected with a movable plate, and limiting holes are arranged on the left and right sides of the middle part of the movable plate, and the inner sides of the limiting holes are penetrated and slidably connected with limiting rods, and the limiting rods are respectively fixedly connected to the left and right parts of the inner side of the slide groove, and the middle part of the slide groove is rotatably connected with a bidirectional screw, and the movable plates are respectively threadedly connected to the front and rear sides of the outer periphery of the bidirectional screw, and the movable plates on the left and right sides are fixedly connected with clamping blocks at the ends close to each other.

[0007] As a preferred technical solution of the utility model, the quick disassembly and assembly mechanism includes an installation groove, which is respectively arranged in the middle of the upper and lower walls on the outer side of the installation frame, and the inner sides of the installation grooves are slidably connected with clamping blocks, and two groups of the clamping blocks are fixedly connected with connecting rods in the middle of one side wall close to each other, and two groups of the connecting rods are fixedly connected with pull plates at one end close to each other, and two groups of the pull plates are fixedly connected with springs at the middle of one side wall away from each other.

[0008] As a preferred technical solution of the utility model, the clamping blocks are respectively located at the front and rear sides of the filter element, and the sliding grooves are respectively arranged at the upper and lower sides of the left and right walls of the installation frame.

[0009] As a preferred technical solution of the utility model, the front ends of the bidirectional screws are fixedly connected with knobs, and the knobs are rotatably connected to the upper and lower left and right parts of the front wall of the installation frame respectively.

[0010] As a preferred technical solution of the utility model, the other end of the spring is fixedly connected to the front end of the middle part of the upper and lower walls inside the installation frame, and the spring is loosely matched with the connecting rod.

[0011] As a preferred technical solution of the utility model, the installation frame is slidably connected to the inner side of the ventilation duct, and the middle parts of the upper and lower walls of the ventilation duct are both provided with card slots.

[0012] As a preferred technical solution of the utility model, the clamping blocks are all on the same vertical level as the clamping slots, and the clamping blocks are all in clearance fit with the clamping slots.

[0013] The beneficial effects of the utility model are:

[0014] 1. This primary dust removal filter device, when the filter element of the filter device needs to be replaced, rotates the knobs on both sides, and the two-way screw is driven to rotate during the rotation of the knobs. During the rotation of the two-way screw, the front and rear moving plates are moved away from each other, so that the clamping blocks on both sides are moved away from each other. After the fixing of the inner filter element is released, the filter element is removed from the inner side of the installation frame for replacement, and the installation frame does not need to be replaced, thereby reducing the use cost of the primary dust removal filter device;

[0015] 2. This type of primary dust removal and filtering device, when installing the primary dust removal and filtering device, presses two sets of pull plates inward to stretch the spring and retract the card block into the inner side of the installation groove, pushes the installation frame into the inner side of the ventilation duct and places the card block and the card groove in the same position, then releases the restriction on the pull plates, and allows the card block to be inserted into the inner side of the card groove under the elastic force of the spring, thereby completing the installation of the ventilation duct and the primary dust removal and filtering device, and improving the installation efficiency of the primary dust removal and filtering device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the primary dust removal and filtering device of the utility model;

[0018] Figure 2It is a schematic diagram of the filtering structure of the primary dust removal and filtering device of the utility model;

[0019] Figure 3 It is a schematic diagram of the fixed structure of the primary dust removal and filtering device of the utility model;

[0020] Figure 4 It is a schematic diagram of the installation structure of the primary dust removal and filtering device of the utility model.

[0021] In the figure: 1. ventilation duct; 2. quick disassembly and assembly mechanism; 3. clamping and fixing mechanism; 4. installation frame; 5. filter element; 6. slide groove; 7. movable plate; 8. limit rod; 9. limit hole; 10. bidirectional screw; 11. knob; 12. clamping block; 13. installation groove; 14. clamping block; 15. connecting rod; 16. spring; 17. pull plate; 18. clamping slot. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0023] Example: Figure 1-4 As shown, the primary dust removal and filtering device of the utility model comprises a mounting frame 4, a clamping and fixing mechanism 3 is arranged on the left and right sides of the mounting frame 4, and a quick disassembly and assembly mechanism 2 is arranged on the upper and lower sides of the mounting frame 4;

[0024] The clamping and fixing mechanism 3 includes a slide groove 6, and a movable plate 7 can move forward and backward inside the slide groove 6 to drive the clamping block 12 to move forward and backward. The two groups of clamping blocks 12 are close to each other to clamp and fix the filter element 5. The front and rear parts of the inner side of the slide groove 6 are slidably connected with the movable plate 7. Limiting holes 9 are arranged on the left and right sides of the middle part of the movable plate 7. The inner side of the limiting hole 9 is penetrated and slidably connected with the limiting rod 8. The limiting rod 8 cooperates with the limiting hole 9 to limit the movable plate 7 to make it more stable during the movement inside the slide groove 6. The limiting rod 8 is respectively fixedly connected to the left and right parts of the inner side of the slide groove 6. The middle part of the slide groove 6 is rotatably connected with a bidirectional screw 10. The movable plate 7 is respectively threadedly connected to the front and rear sides of the outer periphery of the bidirectional screw 10, and the left and right sides of the movable plates 7 are fixedly connected with clamping blocks 12 at the close ends.

[0025] Among them, the quick disassembly and assembly mechanism 2 includes an installation groove 13, which is respectively arranged in the middle of the upper and lower walls on the outer side of the installation frame 4. The installation groove 13 can store the card block 14 and limit the card block 14 so that it will not deviate during the up and down movement. The inner side of the installation groove 13 is slidably connected with the card block 14, and the two groups of card blocks 14 are close to the middle of one side wall and are fixedly connected with a connecting rod 15. The two groups of connecting rods 15 are fixedly connected with a pull plate 17 at one end thereof, and the two groups of pull plates 17 are fixedly connected with a spring 16 at the middle of the one side wall away from each other. The card block 14 is moved up and down and the spring 16 is stretched or contracted by pulling the pull plate 17.

[0026] The clamping blocks 12 are respectively located at the front and rear sides of the filter element 5, and the slide grooves 6 are respectively arranged at the upper and lower sides of the left and right walls of the installation frame 4. The four corners of the filter element 5 are clamped and fixed by the cooperation of the front and rear sets of clamping blocks 12.

[0027] The front ends of the bidirectional screws 10 are fixedly connected with knobs 11 , which are rotatably connected to the upper and lower left and right parts of the front wall of the installation frame 4 , and the knobs 11 rotate synchronously with the bidirectional screws 10 .

[0028] The other ends of the springs 16 are respectively fixedly connected to the front ends of the middle parts of the upper and lower walls inside the installation frame 4 , and the springs 16 are clearance-matched with the connecting rods 15 , and the elastic force of the springs 16 pushes the card block 14 into the card slot 18 .

[0029] The installation frame 4 is slidably connected to the inner side of the ventilation duct 1 , and a card slot 18 is provided in the middle of the upper and lower walls of the ventilation duct 1 . The installation operation of the primary dust removal and filtering device can be completed by pushing the card block 14 into the card slot 18 .

[0030] The clamping blocks 14 and the clamping slots 18 are all on the same vertical horizontal line, and the clamping blocks 14 and the clamping slots 18 are all in clearance fit.

[0031] Working principle: when the filter element 5 of the filter device needs to be replaced, turn the knobs 11 on both sides. The rotation of the knobs 11 drives the bidirectional screw 10 to rotate. The rotation of the bidirectional screw 10 makes the front and rear moving plates 7 move away from each other, so that the clamping blocks 12 on both sides move away from each other. After releasing the fixation of the inner filter element 5, the filter element 5 is removed from the inner side of the installation frame 4 for replacement. After the replacement is completed, press the two sets of pull plates 17 inward to stretch the spring 16 and retract the block 14 into the inner side of the installation groove 13. Push the installation frame 4 into the inner side of the ventilation duct 1 and make the block 14 and the slot 18 in the same position. Then release the restriction of the pull plate 17, so that the block 14 is inserted into the slot 18 under the elastic force of the spring 16, and the installation of the ventilation duct 1 and the primary dust removal filter device is completed.

[0032] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0033] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A primary dust removal and filtering device, comprising a mounting frame (4), characterized in that: The installation frame (4) is provided with a clamping and fixing mechanism (3) on the left and right sides, and the installation frame (4) is provided with a quick disassembly and assembly mechanism (2) on the upper and lower sides; The clamping and fixing mechanism (3) comprises a slide groove (6), the front and rear parts of the inner side of the slide groove (6) are slidably connected with a movable plate (7), the left and right sides of the middle part of the movable plate (7) are provided with limiting holes (9), the inner sides of the limiting holes (9) are penetrated by limiting rods (8) and slidably connected, the limiting rods (8) are respectively fixedly connected to the left and right parts of the inner side of the slide groove (6), the middle part of the slide groove (6) is rotatably connected with a bidirectional screw (10), the movable plates (7) are respectively threadedly connected to the front and rear sides of the outer periphery of the bidirectional screw (10), and the ends of the movable plates (7) on the left and right sides that are close to each other are fixedly connected with clamping blocks (12).

2. The primary dust removal and filtering device according to claim 1, characterized in that: The quick disassembly and assembly mechanism (2) comprises an installation groove (13), the installation groove (13) is respectively arranged at the middle of the upper and lower walls on the outer side of the installation frame (4), the inner side of the installation groove (13) is slidably connected with a clamping block (14), two groups of the clamping blocks (14) are fixedly connected with a connecting rod (15) at the middle of a side wall close to each other, the two groups of the connecting rods (15) are fixedly connected with a pull plate (17) at one end close to each other, and the two groups of the pull plates (17) are fixedly connected with a spring (16) at the middle of a side wall away from each other.

3. The primary dust removal and filtering device according to claim 1, characterized in that: The clamping blocks (12) are respectively located on the front and rear sides of the filter element (5), and the sliding grooves (6) are respectively arranged on the upper and lower sides of the left and right walls of the installation frame (4).

4. The primary dust removal and filtering device according to claim 1, characterized in that: The front ends of the bidirectional screw rods (10) are fixedly connected with knobs (11), and the knobs (11) are rotatably connected to the upper and lower left and right parts of the front wall of the installation frame (4).

5. The primary dust removal and filtering device according to claim 2, characterized in that: The other end of the spring (16) is fixedly connected to the front end of the middle part of the upper and lower walls inside the installation frame (4), and the spring (16) is loosely matched with the connecting rod (15).

6. The primary dust removal and filtering device according to claim 1, characterized in that: The installation frame (4) is slidably connected to the inner side of the ventilation duct (1), and a clamping groove (18) is provided in the middle of the upper and lower walls of the ventilation duct (1).

7. The primary dust removal and filtering device according to claim 2, characterized in that: The clamping blocks (14) and the clamping slots (18) are all located on the same vertical horizontal line, and the clamping blocks (14) and the clamping slots (18) are all clearance-matched.

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