Multifunctional coil prefilter with low maintenance cost

Abstract

The utility model discloses a multifunctional coil prefilter with low maintenance cost, which belongs to the technical field of air prefilters and comprises a first disc, and a first connecting pipe mounting hole is formed in the center of the first disc. The air flow pipe inner sleeve is arranged and arranged in the first air flow pipe, so that dust cannot be attached to the inner wall of the first air flow pipe, the arc-shaped clamping block can move under the action of the air flow pipe inner sleeve by rotating the air flow pipe inner sleeve, and the spring is changed into a contraction state from a loose state; when a clamping groove rotates to the position of an arc-shaped clamping block, a spring can drive the arc-shaped clamping block to move, so that the airflow pipe inner sleeve is continuously knocked and vibrated, dust on the airflow pipe inner sleeve falls off, a first disc and a first airflow pipe do not need to be disassembled, a large amount of cleaning time is saved, and the maintenance cost of the prefilter is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air pre-filters, in particular to a multifunctional spiral tube pre-filter with low maintenance cost. Background Art

[0002] An air cyclone pre-filter is a device used in an air purification system. It uses the cyclone principle to separate solid particles in the air to protect subsequent air handling equipment, extend its service life and improve efficiency. Air pre-filters are widely used in places with high dust concentrations such as construction sites, mines, deserts, farmlands, agriculture, and gardens. Installing an air pre-filter in the intake system can greatly reduce the amount of dust and impurities entering the air filter, greatly extend the life of the air filter, and provide strong protection for the engine, improve engine performance, and reduce maintenance costs. Although the air cyclone pre-filter in the prior art can filter dust in the air into a collection box, after a period of use, some dust that has not entered the collection box may accumulate in the airflow duct. If it is not cleaned in time, the airflow duct may be blocked, affecting the filtering effect of the air cyclone pre-filter. The airflow duct and duct disc of the common air cyclone pre-filter are integrally injection molded, resulting in a lot of time required for each cleaning and high maintenance costs. Utility Model Content

[0003] The technical problem to be solved by the utility model is that the airflow duct and the duct plate of the common air cyclone pre-filter are integrally formed by injection molding, resulting in that each cleaning takes a lot of time and has a high maintenance cost.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a multifunctional spiral tube pre-filter with low maintenance cost, including a first disc, a first connecting pipe mounting hole is arranged at the center position of the first disc, a plurality of first airflow pipes are evenly distributed on the circumference of the first disc, the bottom of the first airflow pipe is a conical structure, a plurality of reserved grooves are arranged on the inner wall of the first airflow pipe, a plurality of springs are fixedly connected in the reserved grooves, an arc-shaped clamping block is fixedly connected at one end of the spring away from the reserved groove, the arc-shaped clamping block is arranged in the reserved groove, a plurality of positioning grooves are evenly distributed on the top surface of the first disc, a first fixing ring is fixedly connected to the outer wall of the first disc, and a threaded ring is fixedly connected on the bottom surface of the first fixing ring.

[0005] The utility model is further configured as follows: a circular ring is provided at the top of the first disc, a plurality of positioning rods are fixedly connected to the bottom surface of the circular ring, the positioning rods are respectively arranged in adjacent positioning grooves, an airflow tube inner sleeve is provided in the first airflow tube, a clamping groove is provided at a position of the airflow tube inner sleeve close to the arc-shaped clamping block, and the arc parts of the arc-shaped clamping block are respectively arranged in adjacent clamping grooves.

[0006] Through the above technical solution, the airflow tube inner sleeve is arranged in the first airflow tube, so that dust cannot adhere to the inner wall of the first airflow tube, but will adhere to the inner wall of the airflow tube inner sleeve. By rotating the airflow tube inner sleeve, the arc-shaped clamping block can be moved under the action of the airflow tube inner sleeve, so that the spring changes from a relaxed state to a contracted state. When the clamping slot rotates to the position of the arc-shaped clamping block, the spring changes from a contracted state back to a relaxed state and drives the arc-shaped clamping block to move, thereby continuously knocking and vibrating the airflow tube inner sleeve to make the dust on the airflow tube inner sleeve fall off. There is no need to disassemble the first disc and the first airflow tube, which saves a lot of cleaning time and reduces the maintenance cost of the pre-filter.

[0007] The utility model is further configured such that a rotating ring is fixedly connected to the top surface of the inner sleeve of the airflow tube, a connecting ring is rotatably connected to the top surface of the rotating ring, a connecting frame is fixedly connected to the side of the outer wall of the connecting ring close to the circular ring, and the connecting frame is fixedly connected to the top surface of the circular ring.

[0008] Through the above technical solution, rotating the rotating ring will drive the inner sleeve of the airflow tube to rotate, which is convenient for the user to rotate and clean the inner sleeve of the airflow tube. If the pre-filter needs to be cleaned in all directions, it is only necessary to lift the ring to separate the inner sleeve of the airflow tube from the first airflow tube, and then the inner sleeve of the airflow tube can be removed, making the maintenance of the pre-filter more convenient.

[0009] The utility model is further configured such that a second disc is provided at the top end of the first airflow pipe, a second connecting pipe mounting hole is provided at the center position of the second disc, a second fixing ring is fixedly connected in the second connecting pipe mounting hole, a plurality of first connecting pipe fixing holes are provided on the second fixing ring, a pre-filter connecting pipe is provided at the bottom end of the second fixing ring, the pre-filter connecting pipe passes through the first connecting pipe mounting hole, a plurality of second connecting pipe fixing holes are provided on the top surface of the pre-filter connecting pipe, and the second fixing ring is fixedly connected to the second connecting pipe fixing hole by using bolts to pass through the first connecting pipe fixing hole and the second connecting pipe fixing hole.

[0010] Through the above technical solution, the pre-filter connecting pipe can be separated from the second disc by removing the bolts on the pre-filter connecting pipe, making the disassembly and assembly of the pre-filter connecting pipe more convenient.

[0011] The utility model is further configured as follows: a second airflow tube is provided at a position of the second disc close to the first airflow tube, the second airflow tubes are respectively arranged in inner sleeves of the close airflow tubes, an airflow guide swivel ring is fixedly connected to the top position of the outer wall of the second airflow tube, a third fixing ring is fixedly connected to the outer wall of the second disc, a plurality of first top cover fixing holes are arranged on the third fixing ring, a pre-filter top cover is provided at the top end of the third fixing ring, a second top cover fixing hole is provided at a position of the pre-filter top cover close to the first top cover fixing hole, the pre-filter top cover is fixedly connected to the third fixing ring by using bolts to pass through the second top cover fixing hole and the first top cover fixing hole, a breathable cover is clamped at the bottom of the third fixing ring, and the bottom surface of the breathable cover is clamped at the top of the first fixing ring.

[0012] Through the above technical solution, the breathable cover can filter larger particles of dust and improve the filtering effect of the pre-filter. The airflow carrying dust will enter the pre-filter through the breathable cover, and pass through the first airflow tube and the second airflow tube. The centrifugal force is generated by the swirl principle, so that the dust and solid particles are affected by the centrifugal force and moved to the inner sleeve of the airflow tube. The filtered air will be transmitted to the pre-filter connecting tube through the second airflow tube to achieve air filtration.

[0013] The utility model is further configured such that a dust collecting box is provided at the bottom end of the first fixing ring, a thread is provided at the top position of the outer wall of the top dust collecting box, and the dust collecting box is threadedly connected to the threaded ring.

[0014] Through the above technical solution, the dust collection box can be made of translucent plastic material, which is convenient for users to observe. The filtered dust will be transmitted to the dust collection box through the inner sleeve of the air flow tube. When a large amount of dust accumulates in the dust collection box, the user can turn the dust collection box to disengage the dust collection box from the threaded ring, which is convenient for users to clean the dust.

[0015] The beneficial effects of the utility model are as follows:

[0016] The utility model provides an airflow tube inner sleeve, which is arranged in the first airflow tube, so that dust cannot adhere to the inner wall of the first airflow tube, but will adhere to the inner wall of the airflow tube inner sleeve. By rotating the airflow tube inner sleeve, the arc-shaped clamping block can be moved under the action of the airflow tube inner sleeve, so that the spring changes from a relaxed state to a contracted state. When the clamping slot rotates to the position of the arc-shaped clamping block, the spring changes from a contracted state back to a relaxed state and drives the arc-shaped clamping block to move, thereby continuously knocking and vibrating the airflow tube inner sleeve, so that dust on the airflow tube inner sleeve falls off, and there is no need to disassemble the first disc and the first airflow tube, thereby saving a lot of cleaning time and reducing the maintenance cost of the pre-filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure inside the top cover of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure inside the breathable cover of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the position of the second disc in the utility model;

[0021] Figure 5 It is a structural schematic diagram of the bottom end of the second disc in the utility model;

[0022] Figure 6 It is a schematic diagram of the position of the disc in the utility model from a first perspective;

[0023] Figure 7 For the utility model Figure 6 Schematic diagram of the second perspective;

[0024] Figure 8 It is a structural schematic diagram of the first disc position in the utility model;

[0025] Fig. 9 It is a structural schematic diagram of the first air flow pipe in the utility model.

[0026] In the figure: 1. first disc; 2. first air flow pipe; 3. reserved groove; 4. spring; 5. arc-shaped block; 6. positioning groove; 7. first connecting pipe mounting hole; 8. first fixing ring; 9. threaded ring; 10. circular ring; 11. connecting frame; 12. connecting ring; 13. rotating ring; 14. inner sleeve of air flow pipe; 15. clamping groove; 16. positioning rod; 17. second disc; 18. second connecting pipe mounting hole; 19. second fixing ring; 20. first connecting pipe fixing hole; 21. second air flow pipe; 22. air flow guide rotating ring; 23. third fixing ring; 24. first top cover fixing hole; 25. pre-filter connecting pipe; 26. second connecting pipe fixing hole; 27. air permeable cover; 28. pre-filter top cover; 29. ​​second top cover fixing hole; 30. dust collecting box. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0028] See also Figures 1 to 9A multifunctional spiral tube prefilter with low maintenance cost comprises a first disc 1, a first connecting pipe mounting hole 7 is arranged at the center of the first disc 1, a plurality of first airflow pipes 2 are evenly distributed on the circumference of the first disc 1, the bottom of the first airflow pipe 2 is a conical structure, a plurality of reserved grooves 3 are arranged on the inner wall of the first airflow pipe 2, a plurality of springs 4 are fixedly connected in the reserved grooves 3, an arc-shaped clamping block 5 is fixedly connected at one end of the spring 4 away from the reserved groove 3, the arc-shaped clamping block 5 is arranged in the reserved groove 3, a plurality of positioning grooves 6 are evenly distributed on the circumference of the top surface of the first disc 1, a first fixing ring 8 is fixedly connected on the outer wall of the first disc 1, and a threaded ring 9 is fixedly connected on the bottom surface of the first fixing ring 8;

[0029] A second disc 17 is provided at the top of the first air flow pipe 2, a second connecting pipe mounting hole 18 is provided at the center of the second disc 17, a second fixing ring 19 is fixedly connected in the second connecting pipe mounting hole 18, a plurality of first connecting pipe fixing holes 20 are provided on the second fixing ring 19, a pre-filter connecting pipe 25 is provided at the bottom end of the second fixing ring 19, the pre-filter connecting pipe 25 passes through the first connecting pipe mounting hole 7, a plurality of second connecting pipe fixing holes 26 are provided on the top surface of the pre-filter connecting pipe 25, and the second fixing ring 19 is fixedly connected to the second connecting pipe fixing hole 26 by using bolts to pass through the first connecting pipe fixing hole 20 and the second connecting pipe fixing hole 26;

[0030] A circular ring 10 is provided at the top of the first disc 1, and a plurality of positioning rods 16 are fixedly connected to the bottom surface of the circular ring 10, and the positioning rods 16 are respectively arranged in the adjacent positioning grooves 6, and an airflow tube inner sleeve 14 is provided in the first airflow tube 2, and a clamping groove 15 is provided at the position of the airflow tube inner sleeve 14 near the arc-shaped clamping block 5, and the arc part of the arc-shaped clamping block 5 is respectively arranged in the adjacent clamping groove 15, and a rotating ring 13 is fixedly connected to the top surface of the airflow tube inner sleeve 14, and a connecting ring 12 is rotatably connected to the top surface of the rotating ring 13, and a connecting frame 11 is fixedly connected to the side of the outer wall of the connecting ring 12 near the circular ring 10, and the connecting frame 11 is fixedly connected to the top surface of the circular ring 10;

[0031] A dust collecting box 30 is provided at the bottom end of the first fixing ring 8, and a thread is provided at the top position of the outer wall of the top dust collecting box 30, and the dust collecting box 30 is threadedly connected with the threaded ring 9, and a second airflow tube 21 is provided at a position of the second disc 17 close to the first airflow tube 2, and the second airflow tube 21 is respectively arranged in the adjacent airflow tube inner sleeve 14, and an airflow guide rotating ring 22 is fixedly connected to the top position of the outer wall of the second airflow tube 21, and a third fixing ring 23 is fixedly connected to the outer wall of the second disc 17. The three fixing rings 23 are provided with a plurality of first top cover fixing holes 24, a pre-filter top cover 28 is provided at the top end of the third fixing ring 23, and second top cover fixing holes 29 are provided at the positions of the pre-filter top covers 28 near the first top cover fixing holes 24. The pre-filter top covers 28 are fixedly connected to the third fixing ring 23 by using bolts to pass through the second top cover fixing holes 29 and the first top cover fixing holes 24, and a breathable cover 27 is clamped at the bottom of the third fixing ring 23, and the bottom surface of the breathable cover 27 is clamped at the top of the first fixing ring 8.

[0032] When the utility model is in use, the airflow with dust will enter the pre-filter through the air permeable cover 27, and pass through the first airflow tube 2 and the second airflow tube 21, and use the swirl principle to generate centrifugal force, so that the dust and solid particles are affected by the centrifugal force and are moved to the airflow tube inner sleeve 14, and are transmitted to the dust collection box 30 through the airflow tube inner sleeve 14, and the filtered air will be transmitted to the pre-filter connecting pipe 25 through the second airflow tube 21, so as to filter the air, and the airflow tube inner sleeve 14 is arranged in the first airflow tube 2, so that the dust cannot adhere to the inner wall of the first airflow tube 2, but will adhere to the inner wall of the airflow tube inner sleeve 14, when it is necessary to clean the airflow tube inner sleeve 14, the rotating ring 13 is rotated to drive the airflow tube inner sleeve 14 to clean the dust. The sleeve 14 rotates, so that the arc-shaped block 5 moves under the action of the airflow tube inner sleeve 14, so that the spring 4 changes from a relaxed state to a contracted state. When the slot 15 rotates to the position of the arc-shaped block 5, the spring 4 changes from a contracted state back to a relaxed state, and drives the arc-shaped block 5 to move, thereby continuously knocking and vibrating the airflow tube inner sleeve 14, so that the dust on the airflow tube inner sleeve 14 falls off, and there is no need to disassemble the first disc 1 and the first airflow tube 2, which saves a lot of cleaning time and reduces the maintenance cost of the pre-filter. At the same time, if the pre-filter needs to be cleaned in all directions, it is only necessary to lift the ring 10 to separate the airflow tube inner sleeve 14 from the first airflow tube 2, and then the airflow tube inner sleeve 14 can be removed, making the maintenance of the pre-filter more convenient.

[0033] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A multifunctional spiral tube prefilter with low maintenance cost, comprising a first disc (1), characterized in that: A first connecting pipe mounting hole (7) is provided at the center position of the first disc (1); a plurality of first airflow pipes (2) are evenly distributed on the circumference of the first disc (1); the bottom of the first airflow pipe (2) is a conical structure; a plurality of reserved grooves (3) are provided on the inner wall of the first airflow pipe (2); a plurality of springs (4) are fixedly connected in the reserved grooves (3); an arc-shaped clamping block (5) is fixedly connected at one end of the spring (4) away from the reserved groove (3); the arc-shaped clamping block (5) is arranged in the reserved groove (3); a plurality of positioning grooves (6) are evenly distributed on the circumference of the top surface of the first disc (1); a first fixing ring (8) is fixedly connected on the outer wall of the first disc (1); a threaded ring (9) is fixedly connected on the bottom surface of the first fixing ring (8).

2. A multifunctional spiral tube prefilter with low maintenance cost according to claim 1, characterized in that: A circular ring (10) is arranged at the top of the first disc (1), and a plurality of positioning rods (16) are fixedly connected to the bottom surface of the circular ring (10), and the positioning rods (16) are respectively arranged in adjacent positioning grooves (6). An airflow tube inner sleeve (14) is arranged in the first airflow tube (2), and a clamping groove (15) is arranged at a position close to the arc-shaped clamping block (5), and the arc parts of the arc-shaped clamping block (5) are respectively arranged in the adjacent clamping grooves (15).

3. A multifunctional spiral tube prefilter with low maintenance cost according to claim 2, characterized in that: A rotating ring (13) is fixedly connected to the top surface of the airflow tube inner sleeve (14), a connecting ring (12) is rotatably connected to the top surface of the rotating ring (13), a connecting frame (11) is fixedly connected to the side of the outer wall of the connecting ring (12) close to the circular ring (10), and the connecting frame (11) is fixedly connected to the top surface of the circular ring (10).

4. A multifunctional spiral tube prefilter with low maintenance cost according to claim 1, characterized in that: A second disc (17) is provided at the top of the first air flow pipe (2), a second connecting pipe mounting hole (18) is provided at the center of the second disc (17), a second fixing ring (19) is fixedly connected inside the second connecting pipe mounting hole (18), a plurality of first connecting pipe fixing holes (20) are provided on the second fixing ring (19), a pre-filter connecting pipe (25) is provided at the bottom end of the second fixing ring (19), the pre-filter connecting pipe (25) passes through the first connecting pipe mounting hole (7), a plurality of second connecting pipe fixing holes (26) are provided on the top surface of the pre-filter connecting pipe (25), and the second fixing ring (19) is fixedly connected to the second connecting pipe fixing hole (26) by using bolts passing through the first connecting pipe fixing hole (20) and the second connecting pipe fixing hole (26).

5. A multifunctional spiral tube prefilter with low maintenance cost according to claim 4, characterized in that: The second disc (17) is provided with a second airflow tube (21) at a position close to the first airflow tube (2). The second airflow tube (21) is respectively arranged in the inner sleeve (14) of the adjacent airflow tube. The top position of the outer wall of the second airflow tube (21) is fixedly connected with an airflow guide rotating ring (22). The outer wall of the second disc (17) is fixedly connected with a third fixing ring (23). The third fixing ring (23) is provided with a plurality of first top cover fixing holes (24). The third fixing ring (2 3) is provided with a pre-filter top cover (28), and a second top cover fixing hole (29) is provided at a position of the pre-filter top cover (28) close to the first top cover fixing hole (24). The pre-filter top cover (28) is fixedly connected to the third fixing ring (23) by using bolts passing through the second top cover fixing hole (29) and the first top cover fixing hole (24). The bottom of the third fixing ring (23) is clamped with a breathable cover (27), and the bottom surface of the breathable cover (27) is clamped on the top of the first fixing ring (8).

6. A multifunctional spiral tube prefilter with low maintenance cost according to claim 1, characterized in that: A dust collection box (30) is provided at the bottom end of the first fixing ring (8), and a thread is provided at the top position of the outer wall of the top dust collection box (30), and the dust collection box (30) is threadedly connected to the threaded ring (9).

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