Detachable filter element for spraying

Abstract

The utility model relates to the technical field of filter elements, and discloses a detachable filter element for spraying, which comprises a filter cover and a folding filter element, the folding filter element is arranged in the filter cover, the top end of the folding filter element and the top end of the filter cover are respectively provided with a threaded pipe and a sealing threaded cover, the sealing threaded cover is in threaded connection with the threaded pipe, and the folding filter element is arranged in the filter cover. A sewage discharging assembly is arranged at the bottom end of the filtering cover, an output pipe is fixedly connected to the surface of the filtering cover, and a lead screw is installed at the top of the filtering cover through a supporting assembly; the filter has the beneficial effects that the filter cover can be used for loading the folding filter element and supporting the bottom end of the folding filter element, the folding filter element can be quickly disassembled and assembled by screwing the sealing threaded cover and fixedly connecting the folding filter element with the sealing threaded cover, and the folding filter element can be quickly disassembled and assembled by rotating the screw rod and driving the threaded sleeve to move. And the limiting block can be pushed to the top end of the sealing threaded cover, the sealing threaded cover is clamped, and the sealing threaded cover can be reinforced.

Description

Technical Field

[0001] The utility model relates to the technical field of filter cores, in particular to a detachable filter core for spraying. Background Technique

[0002] A filter core is a filtering device and the core component of a filter. The polypropylene folded filter core uses a polypropylene hot spray fiber membrane as the filtering medium. The polypropylene folded filter core is an advanced fixed-depth filter, and the filtering precision range can be from 0.1um to 60um. The filter membrane is not affected by the fluctuation of the feed pressure and thus the filtering precision. It is popular among users due to its unique low pressure difference, high throughput, good filtering precision and relatively low economic cost.

[0003] The "water spray filter core" disclosed in its application number "CN202021591803.6" "comprises a metal filter screen, a head is arranged at the top of the metal filter screen, an upper connecting ring is welded to the outer wall of the top of the metal filter screen, and external threads are provided on the outer wall of the upper connecting ring. A lower connecting ring is welded to the bottom of the metal filter screen, and external threads are provided on the outer wall of the lower connecting ring. A base is arranged at the bottom of the metal filter screen. A head connecting groove is provided on the outer wall of the bottom of the head, and a base connecting groove is provided on the outer wall of the top of the base. A filter paper is arranged inside the metal filter screen". In the utility model, through the arranged metal filter screen and filter paper, by using the double filtering structure of the metal filter screen and the filter paper, the effect of high filtering precision of the filter core is realized. With the corrugated structure of the filter paper, the contact area between the filter paper and water is increased. Through the arranged upper connecting ring and lower connecting ring, the metal filter screen is threadedly connected to the head and the base through the upper connecting ring and the lower connecting ring respectively, so that the filter core is convenient for production and assembly, solving the defect that the existing technology is easy to age when bonded with glue. While the service life of the filter core is prolonged, the production efficiency of the filter core is also improved.

[0004] However, the above method still has the following defects: Since both ends of the metal filter screen adopt a threaded connection method, it is easy to loosen under the conditions of long-term use and high water pressure, which will reduce the sealing performance. When the water quality for coal mine spray dust removal is poor, it needs to be frequently replaced, increasing the cost investment. Content of the Utility Model

[0005] The purpose of the utility model is to provide a detachable filter core for spraying, so as to solve the problem that due to the threaded connection method at both ends of the metal filter screen, it is easy to loosen under the conditions of long-term use and high water pressure, resulting in reduced sealing performance as mentioned in the above background technique.

[0006] The utility model provides the following technical solution: a detachable filter element for spraying, including a filter cover and a folded filter element. The folded filter element is arranged inside the filter cover. A threaded pipe and a sealing threaded cover are respectively arranged at the top ends of the folded filter element and the filter cover. The sealing threaded cover is in threaded connection with the threaded pipe. A sewage discharge assembly is arranged at the bottom end of the filter cover. An output pipe is fixedly connected to the surface of the filter cover. A lead screw is installed at the top of the filter cover through a support assembly. The lead screw is in threaded connection with a threaded sleeve. The threaded sleeve is fixedly connected with a limit block through two sliding rods. The limit block is located at the top end of the sealing threaded cover. One end of the lead screw is fixedly connected with a knob.

[0007] As a preferred technical solution of the utility model, a first sealing ring is snap-fitted to the inner wall of the top end of the sealing threaded cover. The top end of the first sealing ring abuts against the top end of the threaded pipe. A wrench position is arranged in the middle of the top end of the sealing threaded cover.

[0008] As a preferred technical solution of the utility model, a pressing ring is fixedly arranged at the bottom end of the folded filter element. A second sealing ring is snap-fitted to the bottom end of the pressing ring. A supporting ring is fixedly arranged on the inner wall of the filter cover. The top end of the supporting ring abuts against the bottom end of the pressing ring through the second sealing ring.

[0009] As a preferred technical solution of the utility model, an insertion pipe is fixedly arranged at the bottom end of the pressing ring. The insertion pipe is inserted through the supporting ring.

[0010] As a preferred technical solution of the utility model, the sewage discharge assembly includes a sewage discharge hopper and a sewage discharge valve. The top end of the sewage discharge hopper is welded to the bottom end of the filter cover. An input pipe is fixedly connected to the surface of the sewage discharge hopper. The bottom end of the sewage discharge hopper is connected to the sewage discharge valve through a sewage discharge pipe.

[0011] As a preferred technical solution of the utility model, the sewage discharge pipe is welded to the bottom end of the sewage discharge hopper. Flanges are welded to both the sewage discharge valve and the sewage discharge pipe. The output end of the sewage discharge pipe is fixedly connected to the input end of the sewage discharge valve through the flange.

[0012] As a preferred technical solution of the utility model, the support assembly includes a support plate and a bracket. An arc-shaped groove is formed on one side of the support plate. The support plate is welded to the filter cover through the arc-shaped groove. A reinforcing rib plate is welded to the bottom end of the support plate. A bracket is welded to the top end of the support plate. The lead screw is rotatably connected to the bracket.

[0013] As a preferred technical solution of the utility model, a guide rail is fixedly arranged on the inner wall of the top end of the bracket. A guide block is arranged at the top end of the threaded sleeve. The guide block is slidably connected to the guide rail. The sliding rod is slidably connected to the bracket.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The detachable filter element for spraying uses a filter cover that can hold a folded filter element and support the bottom end of the folded filter element. By tightening the sealing threaded cap, since the folded filter element is fixedly connected to the sealing threaded cap, the folded filter element can be quickly disassembled and assembled. The support assembly can support the screw rod. By rotating the screw rod, the threaded sleeve is driven to move, and the limiting block can be pushed to the top of the sealing threaded cap to clamp the sealing threaded cap, which can reinforce the sealing threaded cap and is not likely to cause the sealing threaded cap to loosen under long-term use and high water pressure conditions, and its sealing performance and pressure resistance can be maintained.

[0016] 2. The detachable filter element for spraying, the sewage discharge assembly and the filter cover can store the filtered substances in the water and discharge the filtered substances. When the water quality for coal mine spray dust removal is poor, by regularly cleaning the filtered substances inside the filter cover and the sewage discharge assembly, the service life of the folded filter element can be extended, and the replacement frequency and cost investment can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is one of the structural schematic diagrams of the present utility model;

[0018] Figure 2 is another structural schematic diagram of the present utility model;

[0019] Figure 3 is the explosion structural schematic diagram of the present utility model;

[0020] Figure 4 is the internal structural schematic diagram of the filter cover of the present utility model;

[0021] Figure 5 is the structural schematic diagram of the limiting block of the present utility model.

[0022] In the figure: 1. Filter cover; 2. Sewage discharge assembly; 201. Sewage hopper; 202. Sewage pipe; 203. Flange; 204. Sewage valve; 205. Input pipe; 3. Threaded pipe; 4. Sealing threaded cap; 5. Folded filter element; 6. Sealing ring one; 7. Pressing ring; 8. Sealing ring two; 9. Support ring; 10. Insertion pipe; 11. Output pipe; 12. Wrench position; 13. Support assembly; 1301. Support plate; 1302. Reinforcing rib plate; 1303. Arc-shaped groove; 1304. Bracket; 1305. Guide rail; 14. Screw rod; 15. Threaded sleeve; 16. Sliding rod; 17. Limiting block; 18. Knob. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] 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. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0024] Embodiment 1:

[0025] Please refer to Figures 1-5 , the present invention provides a detachable filter element for spraying, including a filter cover 1 and a folded filter element 5. The folded filter element 5 is arranged inside the filter cover 1. The filter cover 1 can load the folded filter element 5 and support the bottom end of the folded filter element 5. Threaded tubes 3 and sealing threaded caps 4 are respectively arranged at the top ends of the folded filter element 5 and the filter cover 1. The sealing threaded cap 4 is threadedly connected to the threaded tube 3. By rotating the sealing threaded cap 4, the folded filter element 5 can be disassembled and assembled. A sewage discharge assembly 2 is arranged at the bottom end of the filter cover 1. The sewage discharge assembly 2 and the filter cover 1 cooperate to store the filter substances in the water and discharge the filter substances. By cleaning the filter substances, the service life of the folded filter element 5 can be extended. An output pipe 11 is fixedly connected to the surface of the filter cover 1. A lead screw 14 is installed at the top of the filter cover 1 through a support assembly 13. The lead screw 14 is threadedly connected to a threaded sleeve 15. The threaded sleeve 15 is fixedly connected to a limit block 17 through two sliding rods 16. The limit block 17 is located at the top end of the sealing threaded cap 4. The limit block 17 can limit the top end of the sealing threaded cap 4 and clamp the sealing threaded cap 4. One end of the lead screw 14 is fixedly connected to a knob 18;

[0026] An inner wall of the top end of the sealing threaded cap 4 is snap-fitted with a first sealing ring 6. The first sealing ring 6 abuts against the top end of the threaded tube 3. The first sealing ring 6 can seal between the sealing threaded cap 4 and the threaded tube 3. A wrench position 12 is arranged in the middle of the top end of the sealing threaded cap 4. The sealing threaded cap 4 can be rotated with the aid of the wrench position 12;

[0027] A pressing ring 7 is fixedly arranged at the bottom end of the folded filter element 5. A second sealing ring 8 is snap-fitted at the bottom end of the pressing ring 7. A supporting ring 9 is fixedly arranged on the inner wall of the filter cover 1. The top end of the supporting ring 9 abuts against the bottom end of the pressing ring 7 through the second sealing ring 8. The second sealing ring 8 can seal between the pressing ring 7 and the supporting ring 9. The supporting ring 9 can limit the bottom end of the folded filter element 5 and prevent filter substances from entering the output pipe 11 at the same time;

[0028] An inserting tube 10 is fixedly arranged at the bottom end of the pressing ring 7. The inserting tube 10 is inserted through the supporting ring 9. By inserting the inserting tube 10 into the supporting ring 9, the bottom end of the folded filter element 5 can be prevented from shaking, and the stability of the folded filter element 5 is improved.

[0029] Embodiment 2:

[0030] The sewage discharge assembly 2 includes a sewage discharge hopper 201 and a sewage discharge valve 204. The top end of the sewage discharge hopper 201 is welded to the bottom end of the filter cover 1. An input pipe 205 is fixedly connected to the surface of the sewage discharge hopper 201. Spray water can be input through the input pipe 205. The bottom end of the sewage discharge hopper 201 is connected to a sewage discharge valve 204 through a sewage discharge pipe 202. By opening the sewage discharge valve 204, the filter residue can be discharged.

[0031] The sewage discharge pipe 202 is welded to the bottom end of the sewage discharge hopper 201. Flanges 203 are welded to both the sewage discharge valve 204 and the sewage discharge pipe 202. The output end of the sewage discharge pipe 202 is fixedly connected to the input end of the sewage discharge valve 204 through the flange 203. Connecting the sewage discharge pipe 202 and the sewage discharge valve 204 through the flange 203 has good compressive resistance and is not prone to leakage.

[0032] Embodiment 3:

[0033] The support assembly 13 includes a support plate 1301 and a bracket 1304. An arc-shaped groove 1303 is formed on one side of the support plate 1301. The support plate 1301 is welded to the filter cover 1 through the arc-shaped groove 1303, which can ensure the fitting degree between the support plate 1301 and the filter cover 1. A reinforcing rib plate 1302 is welded to the bottom end of the support plate 1301, and the reinforcing rib plate 1302 can reinforce the support plate 1301. A bracket 1304 is welded to the top end of the support plate 1301, and the lead screw 14 is rotatably connected to the bracket 1304. The bracket 1304 can provide support for the lead screw 14.

[0034] The inner wall of the top end of the bracket 1304 is fixedly provided with a guide rail 1305. A guide block is provided at the top end of the threaded sleeve 15, and the guide block is slidably connected to the guide rail 1305. The sliding rod 16 is slidably connected to the bracket 1304. The guide rail 1305 and the guide block can guide the threaded sleeve 15, and can ensure the linear motion of the threaded sleeve 15.

[0035] During use, first place the folded filter element 5 into the filter cover 1, and insert the insertion tube 10 at its bottom end into the support ring 9. The support ring 9 supports the bottom end of the folded filter element 5. Then tighten the sealing threaded cap 4 at its top end. If necessary, the wrench position 12 can be used to assist in rotating the sealing threaded cap 4. After that, rotate the lead screw 14 through the knob 18. The lead screw 14 converts the rotational motion into the linear motion of the limit block 17 through the threaded sleeve 15, and the limit block 17 can be pushed to the top of the sealing threaded cap 4 to clamp the sealing threaded cap 4, thereby strengthening the sealing threaded cap 4.

[0036] After the folded filter element 5 is installed, the staff connects the input pipe 205 and the output pipe 11 to the coal mine spray dust removal pipeline, and then the impurities in the water flow can be filtered by the folded filter element 5. The first sealing ring 6 can seal between the sealing threaded cover 4 and the threaded pipe 3, and the second sealing ring 8 can seal between the pressing ring 7 and the supporting ring 9, which is not easy to leak. At the same time, it can prevent the filtered substances from entering the output pipe 11, and the filtered substances can remain in the filter cover 1 and the sewage discharge hopper 201;

[0037] When the water pressure is relatively high, the limiting block 17 limits the top of the sealing threaded cover 4 to prevent it from slipping threads, which can increase the compressive capacity and is not easy to seep water. When it is necessary to discharge the filtered substances, the staff opens the sewage discharge valve 204 of the sewage discharge assembly 2, and the filtered substances can be discharged through the sewage discharge hopper 201 and the sewage discharge pipe 202, so that the filtered substances can be cleaned. The folded filter element 5 is not easy to be blocked, and its service life can be extended. After the sewage discharge is completed, just close the sewage discharge valve 204;

[0038] When it is necessary to replace the folded filter element 5, rotate the screw rod 14 in the reverse direction through the knob 18 to control the contraction of the limiting block 17, then loosen the sealing threaded cover 4, take out the folded filter element 5 from the filter cover 1, and then it can be disassembled. Then place the folded filter element 5 to be replaced in the filter cover 1, and then connect the sealing threaded cover 4 fixedly provided at its top to the threaded pipe 3, and finally control the limiting block 17 to reset.

[0039] Although the embodiments of the present invention 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 invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detachable filter element for spraying, comprising a filter cover (1) and a folded filter element (5), characterized in that: The filter cover (1) is provided with a folded filter element (5) inside, and the top of the folded filter element (5) and the top of the filter cover (1) are respectively provided with a threaded tube (3) and a sealing threaded cover (4), and the sealing threaded cover (4) is threadedly connected to the threaded tube (3). The bottom end of the filter cover (1) is provided with a sewage discharge assembly (2), and the surface of the filter cover (1) is fixedly connected to an output pipe (11), and the top of the filter cover (1) is installed with a screw rod (14) through a support assembly (13), and the screw rod (14) is threadedly connected to a threaded sleeve (15), and the threaded sleeve (15) is fixedly connected to a limit block (17) through two sliding rods (16), and the limit block (17) is located at the top of the sealing threaded cover (4), and one end of the screw rod (14) is fixedly connected to a knob (18).

2. The detachable filter element for spraying according to claim 1, characterized in that: The inner wall of the top end of the sealing threaded cover (4) is snap-connected with a sealing ring (6), the sealing ring (6) overlaps the top end of the threaded tube (3), and a wrench position (12) is provided in the middle of the top end of the sealing threaded cover (4).

3. The detachable filter element for spraying according to claim 1, characterized in that: A pressure ring (7) is fixedly provided at the bottom end of the folded filter element (5), and a second sealing ring (8) is snap-connected to the bottom end of the pressure ring (7). A support ring (9) is fixedly provided on the inner wall of the filter cover (1), and the top end of the support ring (9) is overlapped with the bottom end of the pressure ring (7) through the second sealing ring (8).

4. The detachable filter element for spraying according to claim 3, characterized in that: The bottom end of the pressure ring (7) is fixedly provided with an insertion tube (10), and the insertion tube (10) is interlaced and connected with the support ring (9).

5. The detachable filter element for spraying according to claim 1, characterized in that: The sewage discharge assembly (2) comprises a sewage discharge hopper (201) and a sewage discharge valve (204); the top end of the sewage discharge hopper (201) is welded to the bottom end of the filter cover (1); an input pipe (205) is fixedly connected to the surface of the sewage discharge hopper (201); and the bottom end of the sewage discharge hopper (201) is connected to the sewage discharge valve (204) via a sewage discharge pipe (202).

6. The detachable filter element for spraying according to claim 5, characterized in that: The sewage pipe (202) is welded to the bottom end of the sewage bucket (201), the sewage valve (204) and the sewage pipe (202) are both welded with flanges (203), and the output end of the sewage pipe (202) is fixedly connected to the input end of the sewage valve (204) via the flange (203).

7. The detachable filter element for spraying according to claim 1, characterized in that: The support assembly (13) comprises a support plate (1301) and a bracket (1304); an arc-shaped groove (1303) is provided on one side of the support plate (1301); the support plate (1301) is welded to the filter cover (1) via the arc-shaped groove (1303); a reinforcing rib plate (1302) is welded to the bottom end of the support plate (1301); a bracket (1304) is welded to the top end of the support plate (1301); and the screw rod (14) is rotatably connected to the bracket (1304).

8. The detachable filter element for spraying according to claim 7, characterized in that: A guide rail (1305) is fixedly provided on the inner wall at the top of the bracket (1304), a guide block is provided at the top of the threaded sleeve (15), the guide block is slidably connected to the guide rail (1305), and the sliding rod (16) is slidably connected to the bracket (1304).

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