Negative pressure dust removal circulating fan with filtering structure

Abstract

The utility model belongs to the field of circulating fans, and particularly relates to a negative pressure dedusting circulating fan with a filtering structure, which comprises a fan main body, a filter plate is arranged at the rear end of the fan main body, and a dismounting and cleaning assembly is arranged between the fan main body and the filter plate; the dismounting and cleaning assembly comprises a second fixing block, the second fixing block is arranged at the top end of the filter plate, and the bottom end of the second fixing block is fixedly connected with the filter plate; through the design of the dismounting and cleaning assembly, the function of being convenient to dismount, clean or replace is achieved, and the problems that an existing device is not provided with an assembly which is convenient to dismount, clean or replace for a filtering dustproof piece, and when the filtering piece is used for a long time, the filtering piece is extremely prone to being blocked or damaged, and the device is inconvenient to use are solved. And according to an existing device, the problem that a filtering dustproof piece cannot be conveniently detached, replaced or cleaned is solved, and the convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of circulating fans, specifically a negative pressure dust removal circulating fan with a filtration structure. Background Technology

[0002] A circulating fan is a device that generates airflow by rotating blades to circulate air. Circulating fans are powered by an electric motor. The electric motor can be an AC motor or a DC motor, which converts electrical energy into mechanical energy to drive the blades to rotate.

[0003] A specific example of a negative pressure dust removal circulating fan with a filtration structure can be found in application number CN201420299161.0. This dust fan includes a housing, within which a fan and a motor are housed. The motor includes a rotating shaft connecting the fan and a motor body. The fan includes blades. A support is provided on the housing, comprising a sleeve fitted around the perimeter of the housing and feet positioned at the bottom of the sleeve. A socket is provided at the connection between the sleeve and the feet, and an adjusting screw on the side of the socket allows for height adjustment of the feet. A short air-guiding pipe passes through one end of the blades near the inner wall of the housing, with the inner diameter of the short air-guiding pipe gradually increasing from the middle to both ends. A small fan is located between the rotating shaft and the fan and motor body, with a dustproof screen at one end of the small fan near the motor body. The support allows for height adjustment of the fan. The short air-guiding pipe and small fan provide excellent airflow, increasing air volume and reducing noise. The small fan and dustproof screen prevent dust and other impurities from entering the motor.

[0004] The aforementioned device does not have components that facilitate the removal, cleaning, or replacement of the filter dustproof components. After long-term use, the filter components are prone to clogging or damage, requiring replacement. Existing devices cannot easily remove, replace, or clean the filter dustproof components. Therefore, to address the above problems, a negative pressure dust removal circulating fan with a filtration structure is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, current devices do not include components that facilitate the removal, cleaning, or replacement of the filter dustproof components. After prolonged use, the filter components are prone to clogging or damage, requiring replacement. Existing devices cannot easily remove, replace, or clean the filter dustproof components. This invention proposes a negative pressure dust removal circulating fan with a filtration structure.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: the negative pressure dust removal circulating fan with a filtration structure of this utility model includes a fan body; a filter plate is provided at the rear end of the fan body, and a disassembly and cleaning component is provided between the fan body and the filter plate;

[0007] The dismantling and cleaning assembly includes a second fixing block, which is located at the top of the filter plate and the filter plate is fixedly connected to the bottom of the second fixing block. Fixing seats are also fixedly connected to the rear end of the fan body near the left and right sides of the second fixing block. A rotating block is rotatably connected to the outside of the fixing seat. One end of a movable insert is inserted into the rotating block and is slidably connected to the rotating block. The other end of the movable insert is inserted into the first fixing block and is slidably connected to the first fixing block. A second fixing block is fixedly connected to one end of the first fixing block.

[0008] Preferably, the upper and lower ends of the movable insert are also fixedly connected to one end of the slider, and the lower ends of the rotating block are also provided with grooves. The other end of the slider is inserted into the groove, and the slider is slidably connected to the groove.

[0009] Preferably, one end of a reset spring is fixedly connected to both the upper and lower ends of one end of the movable insert block, and the other end of the reset spring is fixedly connected to a rotating block.

[0010] Preferably, the front end of the second fixing block is fixedly connected to the rear end of the second insertion rod, the front end of the second insertion rod is inserted into the fan body, and the second insertion rod is slidably connected to the fan body. The bottom end of the filter plate is fixedly connected to the third fixing block, the front end of the third fixing block is fixedly connected to the first insertion rod, the front end of the first insertion rod is inserted into the fan body, and the first insertion rod is slidably connected to the fan body.

[0011] Preferably, a motor is fixedly connected to the top of the fan body near the left side of the rear end. A reciprocating screw is fixedly connected to the bottom of the motor. The bottom end of the reciprocating screw is inserted into the fan body and is rotatably connected to the fan body. A cleaning brush is sleeved on one end of the reciprocating screw and is threadedly connected to the cleaning brush.

[0012] Preferably, the other end of the cleaning brush is sleeved on the outside of the guide rod, and the cleaning brush is slidably connected to the guide rod, with the upper and lower ends of the guide rod fixedly connected to the fan body.

[0013] The advantages of this utility model are:

[0014] 1. This utility model achieves the function of easy disassembly, cleaning or replacement through the structural design of the disassembly and cleaning component. It solves the problem that the existing device does not have a component that makes it easy to disassemble, clean or replace the filter dustproof component. When the filter component is used for a long time, it is very easy to become blocked or damaged, so it needs to be replaced. The existing device cannot easily disassemble, replace or clean the filter dustproof component, thus improving convenience.

[0015] 2. This utility model achieves automatic cleaning through the structural design of the cleaning component, solving the problem that existing devices do not have an automatic cleaning and dust removal component, and the filter dustproof parts are prone to clogging during use, which requires frequent manual cleaning, increases workload, and is not easy to operate, thus improving convenience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a partial cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of a second partial cross-sectional structure of the present invention;

[0020] Figure 4 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0021] Figure 5 For the present utility model Figure 1 Enlarged structural diagram at point B;

[0022] Figure 6 For the present utility model Figure 1 Enlarged structural diagram at point C;

[0023] Figure 7 For the present utility model Figure 2 Enlarged structural diagram at point D;

[0024] Figure 8 For the present utility model Figure 3 Enlarged structural diagram at point E;

[0025] Figure 9 For the present utility model Figure 3 Enlarged structural diagram at point F.

[0026] In the diagram: 1. Fan body; 2. Filter plate; 10. Fixed base; 11. Rotating block; 12. Moving insert block; 13. Return spring; 14. First fixed block; 15. Sliding block; 16. Slide groove; 17. Second fixed block; 18. Third fixed block; 19. First insert rod; 20. Second insert rod; 21. Motor; 22. Reciprocating lead screw; 23. Cleaning brush; 24. Guide rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0028] Please see Figures 1-9 As shown, a negative pressure dust removal circulating fan with a filtration structure includes a fan body 1; a filter plate 2 is provided at the rear end of the fan body 1, and a dismantling and cleaning assembly is provided between the fan body 1 and the filter plate 2.

[0029] The dismantling and cleaning assembly includes a second fixing block 17, which is located at the top of the filter plate 2 and the filter plate 2 is welded to the bottom of the second fixing block 17. A fixing seat 10 is also welded to the left and right sides of the rear end of the fan body 1 near the second fixing block 17. A rotating block 11 is rotatably connected to the outside of the fixing seat 10. One end of a movable insert 12 is inserted into the rotating block 11 and is slidably connected to the rotating block 11. The other end of the movable insert 12 is inserted into the first fixing block 14 and is slidably connected to the first fixing block 14. A second fixing block 17 is welded to one end of the first fixing block 14. The movable insert 12 has a square design.

[0030] During operation, the movable inserts 12 on both sides of the second fixed block 17 are pulled outwards simultaneously. When the movable inserts 12 are pulled, one end of the movable insert 12 moves outwards along the inside of the rotating block 11, and the other end of the movable insert 12 moves outwards along the inside of the first fixed block 14 until it is completely separated from the inside of the first fixed block 14. Then, the movable inserts 12 are flipped outwards, which causes the rotating block 11 to rotate and open along the outside of the fixed seat 10.

[0031] Furthermore, the upper and lower ends of the movable insert 12 are also fixedly connected to one end of the slider 15, and the upper and lower ends of the rotating block 11 are also provided with grooves 16. The other end of the slider 15 is inserted into the groove 16, and the slider 15 is slidably connected to the groove 16. Both the slider 15 and the groove 16 are square designs.

[0032] During operation, the movable insert 12 is pulled, causing the slider 15 to slide along the inside of the groove 16.

[0033] Furthermore, the upper and lower ends of one end of the movable plug 12 are also welded together with one end of the return spring 13, and the other end of the return spring 13 is welded together with the rotating block 11.

[0034] When in operation, the movable plug 12 is pulled, which will pull the return spring 13 to extend.

[0035] Furthermore, the front end of the second fixing block 17 is welded together with the rear end of the second insertion rod 20. The front end of the second insertion rod 20 is inserted into the fan body 1, and the second insertion rod 20 is slidably connected to the fan body 1. The bottom end of the filter plate 2 is welded together with the third fixing block 18. The front end of the third fixing block 18 is welded together with the first insertion rod 19. The front end of the first insertion rod 19 is inserted into the fan body 1, and the first insertion rod 19 is slidably connected to the fan body 1. Both the second insertion rod 20 and the first insertion rod 19 are designed as round rods.

[0036] During operation, the filter plate 2 is pulled outward, causing the second fixing block 17 to move simultaneously. As the second fixing block 17 moves, it causes the second insertion rod 20 to move outward along the inside of the fan body 1. At the same time, the filter plate 2 causes the third fixing block 18 to move, and the third fixing block 18 causes the first insertion rod 19 to move outward along the inside of the fan body 1 until it is completely detached.

[0037] Furthermore, a motor 21 is welded to the top of the fan body 1 near the left side of the rear end. A reciprocating screw 22 is welded to the bottom of the motor 21. The bottom of the reciprocating screw 22 is inserted into the fan body 1 and is rotatably connected to the fan body 1. A cleaning brush 23 is sleeved on one end of the reciprocating screw 22 and is threadedly connected to the cleaning brush 23.

[0038] When in operation, the motor 21 at the top of the fan body 1 is started, which drives the reciprocating screw 22 to rotate. When the reciprocating screw 22 rotates, it drives one end of the cleaning brush 23 to move up and down along the outside of the reciprocating screw 22.

[0039] Furthermore, the other end of the cleaning brush 23 is sleeved on the outside of the guide rod 24, and the cleaning brush 23 is slidably connected to the guide rod 24. The upper and lower ends of the guide rod 24 are welded together to form the fan body 1. The guide rod 24 is a circular rod design.

[0040] During operation, the other end of the cleaning brush 23 moves along the outside of the guide rod 24, and the cleaning brush 23 will scrape and clean the surface of the filter plate 2 as it moves.

[0041] Working principle: When the filter dustproof component needs to be removed for later cleaning or replacement, first pull the movable inserts 12 on both sides of the second fixed block 17 outwards simultaneously. When the movable inserts 12 are pulled, one end of the movable insert 12 moves outwards along the inside of the rotating block 11, and the other end of the movable insert 12 moves outwards along the inside of the first fixed block 14 until it is completely disengaged from the inside of the first fixed block 14. Simultaneously, when the movable inserts 12 are pulled, the slider 15 slides along the inside of the slide groove 16. The return spring 13 will be extended, and then the movable insert 12 will be flipped outward, causing the rotating block 11 to rotate and open along the outside of the fixed seat 10. Then the filter plate 2 will be pulled outward, causing the second fixed block 17 to move simultaneously. When the second fixed block 17 moves, it will cause the second insert rod 20 to move outward along the inside of the fan body 1. At the same time, the filter plate 2 will cause the third fixed block 18 to move, and the third fixed block 18 will cause the first insert rod 19 to move outward along the inside of the fan body 1 until it is completely disengaged.

[0042] When automatic cleaning of the filter dustproof component surface is required, first start the motor 21 at the top of the fan body 1 to drive the reciprocating screw 22 to rotate. When the reciprocating screw 22 rotates, it drives one end of the cleaning brush 23 to move up and down along the outside of the reciprocating screw 22. At the same time, the other end of the cleaning brush 23 moves along the outside of the guide rod 24. When the cleaning brush 23 moves, it will scrape and clean the surface of the filter plate 2.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A negative pressure dust removal circulating fan with a filtration structure, comprising a fan body (1); characterized in that: A filter plate (2) is provided at the rear end of the fan body (1), and a dismantling and cleaning assembly is provided between the fan body (1) and the filter plate (2); The dismantling and cleaning assembly includes a second fixing block (17), which is located at the top of the filter plate (2) and the bottom of the second fixing block (17) is fixedly connected to the filter plate (2). Fixing seats (10) are fixedly connected to the left and right sides of the rear end of the fan body (1) near the second fixing block (17). A rotating block (11) is rotatably connected to the outside of the fixing seat (10). A movable insert (12) is slidably connected inside the rotating block (11). A first fixing block (14) is slidably connected to the movable insert (12). The first fixing block (14) is fixedly connected to the second fixing block (17).

2. The negative pressure dust removal circulating fan with a filtration structure according to claim 1, characterized in that: The upper and lower ends of the movable insert (12) are fixedly connected to sliders (15), and the upper and lower ends of the rotating block (11) are provided with sliding grooves (16). The sliders (15) and sliding grooves (16) are slidably connected.

3. A negative pressure dust removal circulating fan with a filtration structure according to claim 2, characterized in that: Both ends of the movable insert (12) are fixedly connected to a return spring (13), and the return spring (13) is fixedly connected to the rotating block (11).

4. A negative pressure dust removal circulating fan with a filtration structure according to claim 3, characterized in that: The second fixing block (17) is fixedly connected to the front end of the second insertion rod (20), and the front end of the second insertion rod (20) is slidably connected to the fan body (1). The filter plate (2) is fixedly connected to the bottom end of the third fixing block (18), and the front end of the third fixing block (18) is fixedly connected to the first insertion rod (19), and the front end of the first insertion rod (19) is slidably connected to the fan body (1).

5. A negative pressure dust removal circulating fan with a filtration structure according to claim 4, characterized in that: A motor (21) is fixedly connected to the top of the fan body (1) near the left side of the rear end. A reciprocating screw (22) is fixedly connected to the bottom of the motor (21). The bottom of the reciprocating screw (22) is rotatably connected to the fan body (1). A cleaning brush (23) is sleeved on one end of the reciprocating screw (22), and the reciprocating screw (22) is threadedly connected to the cleaning brush (23).

6. A negative pressure dust removal circulating fan with a filtration structure according to claim 5, characterized in that: The cleaning brush (23) is slidably connected to a guide rod (24), and both the upper and lower ends of the guide rod (24) are fixedly connected to the fan body (1).

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