Filter with multi-layer filtering structure

Abstract

The utility model relates to the technical field of filters, and discloses a filter with a multi-layer filter structure, which comprises an outer frame, three groups of chutes are arranged on the surface of the outer frame, and three groups of filter screens are connected in the chutes. According to the filter with the multi-layer filtering structure, through the arrangement of the limiting mechanism, when the outer frame is mounted, the outer frame is tightly attached to the connecting frame on one side, three sets of connecting blocks arranged on the surface of the outer frame are inserted into U-shaped plates arranged on the surfaces of the connecting frames until the connecting blocks are tightly attached to positioning plates on one side, and then rotating positioning pins on the surfaces of the U-shaped plates are rotated; the outer frame can be installed by inserting a rotary positioning pin into a positioning groove formed in the surface of the connecting block, similarly, a pull ring on the surface of the rotary positioning pin is pulled, so that the rotary positioning pin is separated from the positioning groove, and then the connecting block is pulled out of the U-shaped plate, so that the effect of quickly assembling and disassembling the outer frame is achieved in sequence. And the installation efficiency of workers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a filter with a multi-layer filtering structure. Background Art

[0002] A filter with a multi-layer filtering structure is an efficient filtering device. It realizes the hierarchical filtration of particles in liquids or gases through the combination of multiple different materials or structures. The design of this filter aims to improve the filtration efficiency, reduce the filtration resistance, and extend the service life of the filter media. The multi-layer filtering structure usually includes a pre-filter, a main filter, and possibly a fine filter. Each layer of the filter intercepts particles of a specific size, thereby effectively removing pollutants.

[0003] Most of the existing filters with multi-layer filtering structures are connected by threads during installation and do not have the function of quick disassembly. When performing regular maintenance and replacement of the filter, tools are needed to assemble and disassemble by screwing the threads, which is time-consuming and laborious and affects the installation efficiency. Therefore, a filter with a multi-layer filtering structure is proposed.

[0004] An air inlet filter with a multi-layer filtering structure disclosed in the publication number CN220939713U. Although, this air inlet filter with a multi-layer filtering structure includes an installation frame, a sealing plate is fixed inside the installation frame, hook plates are provided on both sides at one end of the installation frame, an installation plate is slidably provided corresponding to the hook plates at this end of the installation frame, and a clamping plate is slidably installed on the surface of the installation plate far from the installation frame side through two guide rods; in the utility model, not only can the gas be filtered in three levels of coarse, medium, and fine through the multi-layer arranged filter screens, that is, the filtering effect on the gas is effectively improved, and a single person can replace the filter screens, that is, the manpower is effectively saved, and by replacing the filter screens first, the shutdown time of the blower can be effectively shortened, that is, the use efficiency of the blower is improved.

[0005] Although the above patent can filter the gas in three levels of coarse, medium, and fine through the multi-layer arranged filter screens, that is, the filtering effect on the gas is effectively improved, and a single person can replace the filter screens, that is, the manpower is effectively saved, and by replacing the filter screens first, the shutdown time of the blower can be effectively shortened, that is, the use efficiency of the blower is improved; however, this device lacks the function of cleaning the dust attached to the surface of the filter screen to prevent the innermost filter screen from being blocked and affecting the filtering effect.

[0006] Therefore, it is very necessary to invent a filter with a multi-layer filtering structure to solve the above problems. Content of the Utility Model

[0007] (1) Technical Problems to be Solved

[0008] The technical problem solved by the utility model is to provide a filter with a multi-layer filtering structure that has high practicability, can be operated simply, and has a relatively simple structure, solving the problems of quickly installing the filter and cleaning the dust attached to the surface of the filter screen mentioned in the above background technology.

[0009] (II) Technical solution

[0010] To achieve the above objectives, the present utility model is realized through the following technical solutions: A filter with a multi-layer filtering structure includes an outer frame. Three groups of sliding grooves are provided on the surface of the outer frame. Three groups of filter screens are connected to the inner sliding grooves of the sliding grooves. Three groups of connecting blocks are fixedly connected to the back of the outer frame. A positioning groove is provided on the surface of the connecting block. A positioning plate is lapped on one side of the connecting block. A limiting mechanism is slidably connected to the surface of the connecting block. The limiting mechanism includes a U-shaped plate, a rotating positioning pin, and a pull ring. A connecting rod is fixedly connected to the inside of the outer frame. One end of the connecting rod is threadedly connected to a motor box. A cleaning mechanism is fixedly connected to the inside of the motor box. The cleaning mechanism includes a driving motor, a transmission rod, a rotating rod, and a brush.

[0011] As a further solution of the present utility model, the U-shaped plate is slidably connected to the surface of the connecting block. The rotating positioning pin is hinged to the surface of the U-shaped plate through a hinge. A pull ring is fixedly connected to the surface of the rotating positioning pin, and the pull ring facilitates pulling out the rotating positioning pin.

[0012] As a further solution of the present utility model, the driving motor is fixedly connected to the inside of the motor box. The output end of the driving motor is spline-connected to a transmission rod. One end of the transmission rod is fixedly connected to a rotating rod. A brush is fixedly connected to one end of the rotating rod, and the brush facilitates cleaning the dust on the surface of the filter screen.

[0013] As a further solution of the present utility model, a connecting frame is fixedly connected to the bottom of the positioning plate. The U-shaped plate is fixedly connected to the surface of the connecting frame, and the connecting frame facilitates connecting the outer frame.

[0014] As a further solution of the present utility model, a number of ventilation openings are provided on the front surface of the outer frame. A handle is fixedly connected to the surface of the filter screen. The filter screens are, from the inside to the outside, a coarse filter screen, a fine filter screen, and a precision filter screen, and the ventilation openings facilitate ventilation.

[0015] As a further solution of the present utility model, grips are threadedly connected to both sides of the surface of the outer frame. An anti-slip sleeve is sleeved on the surface of the grip, and the anti-slip sleeve facilitates anti-slip.

[0016] As a further solution of the present utility model, a collection bin is provided at the bottom of the outer frame, threaded holes are provided on the surface of the connecting rod, and threaded posts are threadedly connected inside the threaded holes. The threaded posts facilitate improving the stability of the connecting rod.

[0017] (III) Beneficial effects

[0018] The present utility model provides a filter with a multi-layer filtering structure, having the following beneficial effects:

[0019] 1. For the filter with the multi-layer filtering structure, through the setting of the limiting mechanism, when installing the outer frame, the outer frame is closely attached to the connecting frame on one side. The three connecting blocks provided on the surface of the outer frame are inserted into the U-shaped plates provided on the surface of the connecting frame until the connecting blocks are closely attached to the positioning plate on one side. Then, the rotation positioning pin on the surface of the U-shaped plate is rotated, and the rotation positioning pin is inserted into the positioning groove provided on the surface of the connecting block, and thus the installation of the outer frame can be completed. Similarly, by pulling the pull ring on the surface of the rotation positioning pin, the rotation positioning pin is separated from the positioning groove, and after the connecting block is pulled out of the U-shaped plate, the outer frame can be quickly assembled and disassembled in sequence, improving the installation efficiency of the staff.

[0020] 2. For the filter with the multi-layer filtering structure, through the setting of the cleaning mechanism, during use, generally, the pores of the coarse filter screen are larger. Therefore, it will intercept larger impurity particles during the filtering process. As the filtering process progresses, more impurities will adhere to the surface of the coarse filter screen compared to other filter screens. The driving motor inside the motor box can be started, and the driving motor drives the brush on one side to rotate to clean the impurities on the surface of the coarse filter screen. The cleaned impurities will fall into the collection bin directly below for storage, which can ensure that the surface of the coarse filter screen is clean and tidy, avoiding blockage caused by excessive impurities on the surface of the coarse filter screen and affecting the normal use of the equipment. Description of the drawings

[0021] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 It is a schematic diagram of the cleaning mechanism structure of the present utility model;

[0023] Figure 3 It is a schematic diagram of the limiting mechanism structure of the present utility model;

[0024] Figure 4 It is a schematic diagram of the outer frame structure of the present utility model.

[0025] In the figure: 1. Outer frame; 2. Filter net; 201. Coarse filter net; 202. Fine filter net; 203. Precision filter net; 3. Connecting block; 4. Positioning plate; 5. Limiting mechanism; 501. U-shaped plate; 502. Rotating positioning pin; 503. Pulling ring; 6. Connecting rod; 7. Motor box; 8. Cleaning mechanism; 801. Driving motor; 802. Transmission rod; 803. Rotating rod; 804. Brush; 9. Connecting frame; 10. Vent; 11. Handle; 12. Grip; 13. Collection bin; 14. Threaded column. Specific implementation mode

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1 to 4 , the present invention provides a technical solution: a filter with a multi-layer filtering structure, including an outer frame 1. Three sliding grooves are opened on the surface of the outer frame 1. Three filter nets 2 are connected to the inner sliding grooves of the sliding grooves. Three connecting blocks 3 are fixedly connected to the back of the outer frame 1. A positioning groove is opened on the surface of the connecting block 3. A positioning plate 4 is lapped on one side of the connecting block 3. A limiting mechanism 5 is slidably connected to the surface of the connecting block 3. Through the setting of the limiting mechanism 5, the installation efficiency of the staff is improved. The limiting mechanism 5 includes a U-shaped plate 501, a rotating positioning pin 502 and a pulling ring 503. A connecting rod 6 is fixedly connected to the inside of the outer frame 1. One end of the connecting rod 6 is threadedly connected to a motor box 7. A cleaning mechanism 8 is fixedly connected to the inside of the motor box 7. Through the setting of the cleaning mechanism 8, it is avoided that too much impurities on the surface of the coarse filter net 201 cause blockage and affect the normal use of the equipment. The cleaning mechanism 8 includes a driving motor 801, a transmission rod 802, a rotating rod 803 and a brush 804;

[0028] Please refer to Figure 3 , the U-shaped plate 501 is slidably connected to the surface of the connecting block 3. A rotating positioning pin 502 is hinged to the surface of the U-shaped plate 501 through a hinge. A pulling ring 503 is fixedly connected to the surface of the rotating positioning pin 502. The pulling ring 503 is convenient for pulling out the rotating positioning pin 502;

[0029] Please refer to Figure 2 , the driving motor 801 is fixedly connected to the inside of the motor box 7. The output end of the driving motor 801 is spline-connected to a transmission rod 802. One end of the transmission rod 802 is fixedly connected to a rotating rod 803. One end of the rotating rod 803 is fixedly connected to a brush 804. The brush 804 is convenient for cleaning the dust on the surface of the filter net 2;

[0030] Please refer to Figure 1, a connecting frame 9 is fixedly connected to the bottom of the positioning plate 4, and the U-shaped plate 501 is fixedly connected to the surface of the connecting frame 9. The connecting frame 9 facilitates the connection of the outer frame 1;

[0031] Please refer to Figure 4 , a number of ventilation openings 10 are provided on the front surface of the outer frame 1. A handle 11 is fixedly connected to the surface of the filter net 2. The filter net 2 is successively a coarse filter net 201, a fine filter net 202, and a precision filter net 203 from inside to outside. The ventilation openings 10 facilitate ventilation;

[0032] Please refer to Figure 4 , handle tools 12 are threadedly connected to both sides of the surface of the outer frame 1. An anti-slip sleeve is sleeved on the surface of the handle tools 12. The anti-slip sleeve facilitates anti-slip;

[0033] Please refer to Figure 2 , a collection bin 13 is provided at the bottom of the outer frame 1. A threaded hole is provided on the surface of the connecting rod 6, and a threaded column 14 is threadedly connected inside the threaded hole. The threaded column 14 facilitates improving the stability of the connecting rod 6.

[0034] In the present utility model, the working steps of the device are as follows:

[0035] The first step: When installing the outer frame 1, press the outer frame 1 against the connecting frame 9 on one side. The three groups of connecting blocks 3 provided on the surface of the outer frame 1 are inserted into the U-shaped plate 501 provided on the surface of the connecting frame 9 until the connecting blocks 3 are in contact with the positioning plate 4 on one side. Then rotate the rotation positioning pin 502 on the surface of the U-shaped plate 501 and insert the rotation positioning pin 502 into the positioning groove provided on the surface of the connecting block 3, and the installation of the outer frame 1 can be completed. Similarly, pull the pull ring 503 on the surface of the rotation positioning pin 502 to separate the rotation positioning pin 502 from the positioning groove, and then pull out the connecting block 3 from the U-shaped plate 501 to achieve the rapid assembly and disassembly of the outer frame 1 in turn;

[0036] The second step: When in use, generally, the pores of the coarse filter net 201 are relatively large. Therefore, it will intercept larger impurity particles during the filtering process. As the filtering process progresses, more impurities will adhere to the surface of the coarse filter net 201 compared to the surfaces of other filter nets 2. The driving motor 801 inside the motor box 7 can be started, and the driving motor 801 drives the brush 804 on one side to rotate to clean the impurities on the surface of the coarse filter net 201. The cleaned impurities will then fall into the collection bin 13 directly below for storage, which can ensure that the surface of the coarse filter net 201 is clean and tidy.

[0037] It should be noted that the device structure and drawings of the present utility model mainly describe the principle of the present utility model. Based on the technical principle of this design, the settings of the power mechanism, power supply system, control system, etc. of the device are not fully described. However, on the premise that those skilled in the art understand the principle of the above-mentioned utility model, the specific details of its power mechanism, power supply system, and control system can be clearly known. The control method of the application document is automatically controlled by a controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art;

[0038] The standard parts used can all be purchased from the market, and can also be customized according to the description in the specification and drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art, and for the components known to those skilled in the art, their structures and principles can all be learned through technical manuals or obtained through conventional experimental methods by those skilled in the art.

[0039] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A filter with a multi-layer filtering structure, comprising an outer frame (1), characterized in that: The surface of the outer frame (1) is provided with three groups of slide grooves, and the inner slide grooves of the slide grooves are connected to three groups of filter screens (2). The back of the outer frame (1) is fixedly connected to three groups of connection blocks (3). The surface of the connection block (3) is provided with a positioning groove. One side of the connection block (3) is overlapped with a positioning plate (4). The surface of the connection block (3) is slidably connected to a limiting mechanism (5), and the limiting mechanism (5) comprises a U-shaped plate (501), a rotating positioning pin (502) and a pull ring (503). The interior of the outer frame (1) is fixedly connected to a connecting rod (6), one end of the connecting rod (6) is threadedly connected to a motor box (7), and the interior of the motor box (7) is fixedly connected to a cleaning mechanism (8), and the cleaning mechanism (8) comprises a driving motor (801), a transmission rod (802), a rotating rod (803) and a brush (804).

2. The filter of the multi-layer filtration structure according to claim 1, characterized in that: The U-shaped plate (501) is slidably connected to the surface of the connection block (3); the surface of the U-shaped plate (501) is hinged with a rotating positioning pin (502) via a hinge; the surface of the rotating positioning pin (502) is fixedly connected with a pull ring (503).

3. The filter of the multi-layer filtration structure according to claim 1, characterized in that: The drive motor (801) is fixedly connected to the inside of the motor box (7); the output end of the drive motor (801) is spline-connected to a transmission rod (802); one end of the transmission rod (802) is fixedly connected to a rotating rod (803); and one end of the rotating rod (803) is fixedly connected to a brush (804).

4. The filter of the multi-layer filtration structure according to claim 1, characterized in that: The bottom of the positioning plate (4) is fixedly connected to a connecting frame (9), and the U-shaped plate (501) is fixedly connected to the surface of the connecting frame (9).

5. The filter of the multi-layer filtration structure according to claim 1, characterized in that: The front of the outer frame (1) is provided with a plurality of ventilation openings (10); a handle (11) is fixedly connected to the surface of the filter screen (2); and the filter screen (2) comprises, from the inside to the outside, a coarse filter screen (201), a fine filter screen (202) and a precision filter screen (203).

6. The filter with a multi-layer filtration structure according to claim 1, characterized in that: Both sides of the surface of the outer frame (1) are threadedly connected with handles (12), and the surface of the handle (12) is sleeved with an anti-slip sleeve.

7. The filter with a multi-layer filtration structure according to claim 1, characterized in that: A collecting bin (13) is provided at the bottom of the outer frame (1), a threaded hole is provided on the surface of the connecting rod (6), and a threaded column (14) is threadedly connected inside the threaded hole.

Images