Anti-blocking air filter

Abstract

The anti-blocking type air filter comprises a filter box, a fan, a spring piece, a collecting opening, a dust collecting box and a supporting piece, the fan is arranged on the rear side of the filter box, the collecting opening is formed in the bottom of the filter box, the dust collecting box is connected to the bottom of the collecting opening, and first sliding grooves are formed in the two sides of the filter box; and a filtering frame is arranged in the first sliding groove, a second sliding groove is formed in the filtering frame, and a first threaded rod is arranged in the second sliding groove. Scraping plates driven by a transmission rod and a first threaded rod are arranged in a filtering frame, the scraping plates move up and down, so that the two sides of an internal filtering element are scraped, dust accumulated on the filtering element after being used for a period of time is scraped off, meanwhile, the scraping plates and connecting rods are connected through first springs, and the scraping plates and the connecting rods are connected through second springs. The scraper can contract when encountering a relatively hard place, so that the hard part is treated through reciprocating scraping, and the blockage of the filter element is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of air filters, in particular to an anti-blocking air filter. Background Art

[0002] An air filter is an air purifying device, mainly used to remove dust, coal dust, smoke and other particulate matter in the air, effectively control the entry and emission of particulate matter, and can filter out pathogens and microorganisms that are harmful to the human body. In the production process, waste gas containing solid particles is often generated. If these waste gases are directly discharged into the atmosphere, they will have an impact on the atmospheric environment. When used on the walls of production workshops, vents are often opened, and then air filters are placed in the vents to draw air out through the vents, thereby reducing waste gas in the production workshop.

[0003] However, most of the existing air filters only have a filter element in the filter box, and then a fan is set at the rear side of the filter element. The fan draws the internal air into the filter element for filtration and then discharges it from the rear side of the fan to perform the filtering work. The structure is simple, and after working for a long time, dust will accumulate and clog the surface of the filter element, thereby causing the filtering effect of the filter element to deteriorate and affecting the filtering work. Therefore, we propose an anti-blocking air filter to solve the above problems. Utility Model Content

[0004] The utility model aims to provide an anti-blocking air filter to solve the problem in the current market that the filter core surface is easily blocked by dust after long-term use, as mentioned in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an anti-blocking air filter comprises a filter box, a fan, a spring sheet, a collection port, a dust collection box and a supporting sheet, the fan is arranged on the rear side of the filter box, and the collection port is arranged at the bottom of the filter box, and the dust collection box is connected to the bottom of the collection port, first slide grooves are arranged on both sides of the filter box, and a filter frame is arranged in the first slide groove, and a second slide groove is arranged on the filter frame, a first threaded rod is arranged in the second slide groove, and a transmission rod is connected to the top of the first threaded rod through a bevel gear, and a connecting rod is connected to the first threaded rod, a scraper is arranged on the connecting rod, and a first spring is connected to the rear side of the scraper, and a third slide groove is arranged on the right side of the connecting rod, and a spring sheet is arranged in the third slide groove, a first movable rod and a second movable rod are connected to the outside of the filter box through a rotating shaft, and a fourth slide groove is arranged on the first movable rod and the second movable rod, and a first connecting block is connected in the fourth slide groove, the first movable rod and the second movable rod are connected to the top of the supporting sheet, and the second spring is connected to the center bottom of the supporting sheet.

[0006] Preferably, the filter box forms a slide movable structure with the filter frame through the first slide, and the dust box forms a slide movable structure with the filter box through the slide.

[0007] Preferably, the first threaded rod forms a transmission structure with a transmission rod through a bevel gear, and a reciprocating motor is connected to the front end of the transmission rod.

[0008] Preferably, the scraper forms a threaded movable structure in the second slide groove through a connecting rod and a first threaded rod, and the connecting rod and the first threaded rod are threadedly connected, and the scraper is connected to the connecting rod through a first spring.

[0009] Preferably, the spring sheets are distributed at equal intervals on both sides of the third sliding groove.

[0010] Preferably, the support sheet forms a telescopic structure outside the filter box through the second spring, the first movable rod and the second movable rod, and the bottoms of the first movable rod and the second movable rod are connected to the filter box through a sliding groove.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the anti-blocking air filter;

[0012] (1) A scraper driven by a transmission rod and a first threaded rod is arranged in the filter frame, so that the scraper moves up and down, thereby scraping both sides of the internal filter element, so that the dust accumulated on the filter element after a period of use is scraped off. At the same time, the scraper and the connecting rod are connected by a first spring, so that the scraper can shrink when encountering a relatively hard place, so as to process the hard part by reciprocating scraping, thereby avoiding clogging of the filter element. At the same time, a dust collecting box is arranged at the bottom of the filter box, so that the dust scraped off from the upper part will fall into the dust collecting box for collection, so as to facilitate the processing of the scraped dust;

[0013] (2) The filter frame can be pulled out through the first slide groove inside the filter box. At the same time, evenly arranged spring sheets are arranged in the third slide groove on the filter frame, so that after long-term use, the filter element can be quickly pulled out through the spring sheet and the slide groove structure for deep cleaning and replacement. At the same time, a telescopic structure consisting of a first movable rod, a second movable rod, a first connecting block, a fourth slide groove, a second spring, and a support sheet is arranged on the outside of the filter box, so that it can adapt to holes of different sizes during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the top-sectional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the top-sectional structure of the transmission rod of the utility model;

[0016] Figure 3This is a schematic diagram of the front section structure of the utility model;

[0017] Figure 4 For this utility model Figure 3 Schematic diagram of the cross-section structure at point A in the middle;

[0018] Figure 5 It is a schematic diagram of the side section structure of the utility model.

[0019] In the figure: 1. filter box; 2. fan; 3. first slide; 4. filter frame; 5. second slide; 6. first threaded rod; 7. connecting rod; 8. scraper; 9. first spring; 10. third slide; 11. spring sheet; 12. collecting port; 13. dust box; 14. first movable rod; 15. second movable rod; 16. first connecting block; 17. fourth slide; 18. second spring; 19. support sheet; 20. transmission rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0021] See also Figure 1-5The utility model provides a technical solution: an anti-blocking air filter, comprising a filter box 1, a fan 2, a first slide 3, a filter frame 4, a second slide 5, a first threaded rod 6, a connecting rod 7, a scraper 8, a first spring 9, a third slide 10, a spring sheet 11, a collecting port 12, a dust collecting box 13, a first movable rod 14, a second movable rod 15, a first connecting block 16, a fourth slide 17, a second spring 18, a supporting sheet 19 and a transmission rod 20, a fan 2 is arranged at the rear side of the filter box 1, a collecting port 12 is arranged at the bottom of the filter box 1, and a dust collecting box 13 is connected to the bottom of the collecting port 12, first slides 3 are arranged on both sides of the filter box 1, a filter frame 4 is arranged in the first slide 3, and a second slide is arranged on the filter frame 4 5, a first threaded rod 6 is arranged in the second slide groove 5, and a transmission rod 20 is connected to the top of the first threaded rod 6 through a bevel gear, and a connecting rod 7 is connected to the first threaded rod 6, a scraper 8 is arranged on the connecting rod 7, and a first spring 9 is connected to the rear side of the scraper 8, and a third slide groove 10 is arranged on the right side of the connecting rod 7, and a spring sheet 11 is arranged in the third slide groove 10, a first movable rod 14 and a second movable rod 15 are connected to the outside of the filter box 1 through a rotating shaft, and a fourth slide groove 17 is arranged on the first movable rod 14 and the second movable rod 15, and a first connecting block 16 is connected in the fourth slide groove 17, a support sheet 19 is connected to the top of the first movable rod 14 and the second movable rod 15, and a second spring 18 is connected to the center bottom of the support sheet 19.

[0022] The filter box 1 forms a movable slide structure with the filter frame 4 through the first slide 3, which facilitates the extraction of the filter frame 4 and the removal of the filter element. The dust box 13 forms a movable slide structure with the filter box 1 through the slide, which facilitates the dumping of dust in the collection box. The friction at the connection of the slide structure is relatively large, so that it will not be pulled out by external force without manpower.

[0023] The first threaded rod 6 forms a transmission structure with the transmission rod 20 through a bevel gear, and a reciprocating motor is connected to the front end of the transmission rod 20. The first threaded rod 6 is driven to rotate by the rotation of the transmission rod 20, thereby driving the connecting rod 7 to move.

[0024] The scraper 8 forms a threaded movable structure with the first threaded rod 6 through the connecting rod 7 in the second slide groove 5, and the connecting rod 7 and the first threaded rod 6 are threadedly connected, so that the scraper 8 can be driven to move up and down by the rotation of the connecting rod 7, and the scraper 8 is connected to the connecting rod 7 through the first spring 9, so that when lifting harder dust accumulation, the scraper 8 can be retracted to avoid getting stuck.

[0025] The spring sheets 11 are evenly spaced on both sides of the third slide groove 10 , so as to clamp the filter element placed in the third slide groove 10 for easy disassembly.

[0026] The support sheet 19 forms a telescopic structure on the outside of the filter box 1 through the second spring 18, the first movable rod 14, and the second movable rod 15, so that the support sheet 19 is squeezed by the second spring 18, so that it is suitable for ventilation pipe openings of different sizes, and the bottom of the first movable rod 14 and the second movable rod 15 are connected to the filter box 1 through a slide groove, which facilitates the folding of the first movable rod 14 and the second movable rod 15 when contracted.

[0027] Working principle: When using the anti-blocking air filter, first, after using it for a period of time, turn off the fan 2, start the reciprocating motor on the outside of the transmission rod 20, so that the reciprocating motor drives the transmission rod 20 to rotate, and the rotation of the transmission rod 20 will drive the first threaded rod 6 connected by the bevel gear to rotate, and the rotation of the first threaded rod 6 will drive the connecting rod 7 connected by the thread to rotate, so that the scraper 8 on the outside of the connecting rod 7 follows the connecting rod 7 to move up and down on both sides of the third slide 10 in the filter frame 4, so as to scrape the dust on the filter element in the third slide 10, and when encountering a harder area, the scraper 8 will be retracted by the first spring 9 connected to the rear side to prevent the scraper 8 from getting stuck, and the hanging dust will fall into the dust collecting box 13 from the collecting port 12 at the bottom of the filter box 1 for processing;

[0028] After working for a long time, if the internal filter element needs to be disassembled and replaced, and then for deep cleaning, the filter frame 4 is directly pulled through the slide groove structure composed of the first slide groove 3 and the filter frame 4 of the filter box 1, and then the filter element fixed in the third slide groove 10 by the spring sheet 11 can be directly pulled out, and after taking it out, the new filter element is directly inserted into the third slide groove 10, and the spring sheet 11 can squeeze and fix the two sides of the filter element, and then the filter frame 4 is pushed into the filter box 1 to complete the filtering work;

[0029] During installation, align the filter box 1 with the vent that needs to be installed, and then insert the filter box 1 into it. The support sheets 19 around the filter box 1 will first enter the vent, and then shrink according to the size of the hole, so that the first movable rod 14 and the second movable rod 15 will also shrink. At the same time, the second spring 18 will also shrink, and the rebound force of the shrinkage of the second spring 18 will firmly support the support sheet 19 on the inner wall of the vent, thereby fixing the filter box 1 in the vent. The contents not described in detail in this manual belong to the existing technology known to professional and technical personnel in this field.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An anti-blocking air filter, comprising a filter box (1), a fan (2), a spring sheet (11), a collection port (12), a dust collection box (13) and a support sheet (19), characterized in that: A fan (2) is arranged at the rear side of the filter box (1), and a collection port (12) is arranged at the bottom of the filter box (1), and a dust collection box (13) is connected to the bottom of the collection port (12), first slide grooves (3) are arranged on both sides of the filter box (1), and a filter frame (4) is arranged in the first slide groove (3), and a second slide groove (5) is arranged on the filter frame (4), a first threaded rod (6) is arranged in the second slide groove (5), and a transmission rod (20) is connected to the top of the first threaded rod (6) through a bevel gear, and a connecting rod (7) is connected to the first threaded rod (6), and a scraper (8) is arranged on the connecting rod (7), and A first spring (9) is connected to the rear side of the scraper (8), and a third slide groove (10) is arranged on the right side of the connecting rod (7), and a spring sheet (11) is arranged in the third slide groove (10); a first movable rod (14) and a second movable rod (15) are connected to the outside of the filter box (1) through a rotating shaft, and a fourth slide groove (17) is arranged on the first movable rod (14) and the second movable rod (15), and a first connecting block (16) is connected in the fourth slide groove (17); a support sheet (19) is connected to the top of the first movable rod (14) and the second movable rod (15), and a second spring (18) is connected to the center bottom of the support sheet (19).

2. The anti-blocking air filter according to claim 1, characterized in that: The filter box (1) forms a movable slide structure with the filter frame (4) through the first slide (3), and the dust collection box (13) forms a movable slide structure with the filter box (1) through the slide.

3. The anti-blocking air filter according to claim 1, characterized in that: The first threaded rod (6) forms a transmission structure with a transmission rod (20) via a bevel gear, and a reciprocating motor is connected to the front end of the transmission rod (20).

4. The anti-blocking air filter according to claim 1, characterized in that: The scraper (8) forms a threaded movable structure with the first threaded rod (6) through the connecting rod (7) in the second slide groove (5), and the connecting rod (7) and the first threaded rod (6) are threadedly connected, and the scraper (8) is connected to the connecting rod (7) through the first spring (9).

5. The anti-blocking air filter according to claim 1, characterized in that: The spring sheets (11) are distributed at equal intervals on both sides of the third sliding groove (10).

6. The anti-blocking air filter according to claim 1, characterized in that: The support sheet (19) forms a telescopic structure on the outside of the filter box (1) through the second spring (18), the first movable rod (14) and the second movable rod (15), and the bottoms of the first movable rod (14) and the second movable rod (15) are connected to the filter box (1) through a sliding groove.

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