Traditional Chinese medicine fertilizer production filtering device

Abstract

The utility model discloses a traditional Chinese medicine fertilizer production filtering device which comprises a filtering outer barrel and a barrel cover arranged at the top end of the filtering outer barrel, a filtering inner barrel capable of moving up and down is arranged in the filtering outer barrel, and a plurality of filtering nets are evenly and fixedly connected to the inner bottom face of the filtering inner barrel. The traditional Chinese medicine fertilizer production filtering device comprises a filtering outer barrel, a plurality of filtering nets are arranged in the filtering outer barrel, scraping plates capable of scraping the upper surfaces of the filtering nets are arranged on the upper surfaces of the filtering nets, outer collecting boxes capable of being matched with the scraping plates are arranged between every two adjacent filtering nets, and inner collecting boxes capable of being pulled out of the filtering outer barrel are slidably connected to the inner bottom faces of the outer collecting boxes. According to the traditional Chinese medicine fertilizer production filtering device, through the arrangement of the filtering inner barrel, the scraping plate and the outer collecting box, when the filtering net is blocked, the scraping plate can scrape blocked particles into the outer collecting box, so that the traditional Chinese medicine fertilizer production filtering device can be used for a long time, and the filtering efficiency of the traditional Chinese medicine fertilizer production filtering device can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filtration, in particular to a filtration device for producing traditional Chinese medicine fertilizers. Background Art

[0002] Traditional Chinese medicine residue contains rich organic matter and nutrients, which can be decomposed into nutrients that are easily absorbed by plants after fermentation, effectively improving soil structure and soil fertility; some components in traditional Chinese medicine residue can promote the reproduction of beneficial microorganisms in the soil, increase the number and types of microorganisms in the soil, and are beneficial to the improvement of the soil environment; traditional Chinese medicine residue also contains some components with antibacterial and anti-inflammatory effects, which can inhibit the reproduction of pathogens in the soil and improve the disease resistance of crops; the nutrients in traditional Chinese medicine residue can promote the growth and development of crops and increase the yield and quality of crops; the fertilizer after fermentation of traditional Chinese medicine residue is an organic fertilizer, which can replace the use of chemical fertilizers, reduce the use of chemical fertilizers and the emission of pollutants, and is beneficial to environmental protection. Therefore, many traditional Chinese medicine fertilizer production devices have appeared on the market, among which filtering devices are used to filter materials in the production of traditional Chinese medicine fertilizers;

[0003] For example, a Chinese medicine fertilizer production filtering device with application number CN202022209585.1 comprises a silo, a buffer barrel and a filter barrel, wherein the silo is internally clamped with a buffer barrel, and the buffer barrel is internally clamped with a filter barrel, and the buffer barrel comprises a barrel shell, a barrel bottom, a wall hole, a bottom hole, a rotating shaft, a handle and a fixing rod, and the bottom of the barrel shell is fixedly connected with the barrel bottom. By setting the buffer barrel, on the one hand, a buffering effect can be played to prevent the fertilizer from directly scouring the filter screen and causing deformation of the filter screen, and on the other hand, the coordinated use of the wall hole and the bottom hole not only reduces the workload but also saves working time; by placing the fixing rod and the positioning rod into two slide grooves, and then rotating the fixing rod and the positioning rod to fix the buffer barrel and the filter barrel, the buffer barrel and the filter barrel can also be removed by the same operation, so that the equipment can be disassembled for maintenance and cleaning more conveniently;

[0004] Although the above patent can also filter materials, the filter screen is easily clogged after long-term use, thereby greatly reducing the filtering efficiency. Therefore, personnel are required to frequently clean or replace the filter screen, which is very inconvenient for personnel to use. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a filtering device for producing traditional Chinese medicine fertilizer, which solves the problems raised in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a Chinese medicine fertilizer production filtering device, comprising a filtering outer barrel and a barrel cover arranged at the top of the filtering outer barrel, a filtering inner barrel that can move up and down is arranged in the filtering outer barrel, and the inner bottom surface of the filtering inner barrel is evenly fixed with multiple filtering screens, and the upper surface of the filtering screen is provided with a scraper that can scrape the upper surface of the filtering screen, an outer collecting box that can be adapted to the scraper is arranged between two adjacent filtering screens, and the inner bottom surface of the outer collecting box is slidably connected with an inner collecting box that can be pulled out from the filtering outer barrel, a first limiting ball head is arranged at the bottom end of the filtering inner barrel, and the center of the inner bottom surface of the filtering outer barrel is fixedly connected to the limiting cylinder, and the top of the inner circumferential surface of the limiting cylinder is evenly provided with multiple second limiting ball heads that can limit the movement of the first limiting ball head, and the lower part of the inner circumferential surface of the filtering outer barrel is provided with a backwashing component that can backwash the filtering screen.

[0009] Optionally, a guide tube is fixedly connected to the upper portion of the inner circumference of the filter outer barrel, a first tension spring is fixedly connected to the lower surface of the guide tube, and a bottom end of the first tension spring is fixedly connected to an auxiliary pull plate having one end arranged on the filter inner barrel.

[0010] Optionally, a first support rod is fixedly connected to the bottom end of the inner circumference of the guide cylinder, a guide column is fixedly connected to the center of the lower surface of the first support rod, the bottom end of the guide column is slidably connected to a driving barrel, and a vertical limit groove and a spiral groove are sequentially opened at the bottom end of the guide column from top to bottom, and the vertical limit groove is connected to the spiral groove, and the inner circumference of the driving barrel is fixedly connected to a limit block with one end that can be slidably connected in the spiral groove and the vertical limit groove, the two ends of the outer collecting box are respectively fixed to the driving barrel and the filter inner barrel, the end of the scraper away from the filter inner barrel is fixed to the driving barrel, and the lower surface of the scraper is attached to the upper surface of the filter net, the bottom end of the outer circumference of the filter inner barrel is provided with a first pull-out outlet adapted to the size of the inner collecting box, and the middle part of the outer circumference of the filter outer barrel is also provided with a second pull-out outlet adapted to the first pull-out outlet.

[0011] Optionally, a second support rod is fixedly connected to the inner circumferential surface of the bottom end of the filter inner barrel, a third support rod is fixedly connected to the center of the lower surface of the second support rod, a first limiting ball head is fixedly connected to the bottom end of the third support rod, a plurality of limiting mounting grooves are evenly opened on the upper part of the inner circumferential surface of the limiting cylinder, a plurality of the second limiting ball heads are respectively slidably connected in the corresponding limiting mounting grooves, and an inner side surface of the second limiting ball head is fixedly connected to a first spring having one end arranged in the limiting mounting groove.

[0012] Optionally, the backwash component includes an auxiliary recoil cylinder fixedly connected to the lower part of the inner circumference of the filter outer barrel, a backwash baffle slidably connected to the inner circumference of the auxiliary recoil cylinder, the upper surface of the backwash baffle is clamped with a sealing plate, the lower surface of the backwash baffle is fixed with a plurality of second springs with one end each being arranged on the auxiliary recoil cylinder, the lower surface of the backwash baffle is also evenly fixed with a plurality of third springs, the bottom end of the third spring is fixed with an auxiliary opening rod with one end passing through the backwash baffle and fixed to the sealing plate, the inner bottom surface of the auxiliary recoil cylinder is evenly fixed with a plurality of push rods, and the top ends of the plurality of push rods can respectively abut against the corresponding auxiliary opening rods, and the top of the inner circumference of the auxiliary recoil cylinder is evenly provided with a plurality of overflow ports with one end each extending to the lower surface of the auxiliary recoil cylinder.

[0013] Optionally, a plurality of limiting slide grooves are evenly formed on the inner circumference of the filter outer barrel, and a plurality of limiting blocks, one end of which is slidably connected in the limiting slide grooves, are evenly fixed to the outer circumference of the filter inner barrel.

[0014] (III) Beneficial effects

[0015] The utility model provides a filtering device for producing Chinese medicinal fertilizer, which has the following beneficial effects:

[0016] The Chinese medicinal fertilizer production filtering device, through the arrangement of the filtering inner barrel, the scraper and the outer collecting box, can cause the scraper to scrape the blocked particles into the outer collecting box when the filter net is blocked, so that the Chinese medicinal fertilizer production filtering device can be used for a long time, thereby greatly increasing its filtering efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the filter outer barrel of the utility model when viewed from the front;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the filter inner barrel of the utility model from top view;

[0020] Figure 4 This is a schematic diagram of the matching structure of the outer collecting box, the scraper and the inner collecting box of the utility model;

[0021] Figure 5 It is a schematic diagram of the matching structure of the outer collecting box and the inner collecting box of the utility model.

[0022] In the figure: 1. filter outer barrel; 2. barrel cover; 3. guide barrel; 4. first support rod; 5. guide column; 6. drive barrel; 7. second support rod; 8. third support rod; 9. first limit ball head; 10. limit barrel; 11. first spring; 12. second limit ball head; 13. first tension spring; 14. auxiliary pull plate; 15. filter inner barrel; 16. limit block; 17. backwash baffle; 18. filter screen; 19. outer collection box; 20. scraper; 21. auxiliary recoil barrel; 22. second spring; 23. sealing plate; 24. auxiliary opening rod; 25. third spring; 26. push rod; 27. inner collection box. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] See also Figures 1 to 5 The utility model provides a technical solution: a filtering device for producing Chinese medicinal fertilizer, comprising a filtering outer barrel 1 and a barrel cover 2 arranged at the top of the filtering outer barrel 1, a liquid inlet pipe is arranged on the upper surface of the barrel cover 2, wherein a plurality of placement columns are evenly arranged on the lower surface of the filtering outer barrel 1, and a liquid outlet pipe is also arranged at the bottom end of the outer peripheral surface of the filtering outer barrel 1, a filtering inner barrel 15 that can move up and down is arranged in the filtering outer barrel 1, and a plurality of filtering screens 18 are evenly fixed to the inner bottom surface of the filtering inner barrel 15, and a scraper 20 that can scrape the upper surface of the filtering screen 18 is arranged on the upper surface, and an outer collecting box 19 adapted to the scraper 20 is arranged between two adjacent filtering screens 18, wherein in the filtering inner barrel 15, a plurality of filtering screens 18 are evenly fixed to the inner bottom surface of the filtering inner barrel 15, and a scraper 20 that can scrape the upper surface of the filtering screen 18 is arranged on the upper surface of the filtering inner barrel 15, and a plurality of filtering screens 18 are evenly fixed to the inner bottom surface of the filtering inner barrel 15, and a plurality of filtering screens 18 are evenly fixed to the inner bottom surface of the filtering inner barrel 15, and a scraper 20 that can scrape the upper surface of the filtering screen 18 is arranged on the upper surface of the filtering inner barrel 15, and an outer collecting box 19 that is adapted to the scraper 20 is arranged between two adjacent filtering screens 18, wherein in the filtering inner barrel 15, a plurality of filtering screens 18 are evenly fixed to the inner bottom surface of the filtering inner barrel 15, and ... An auxiliary stabilizing arc plate is fixedly connected to one end of the filter screen 18 close to the driving barrel 6, and the inner side surface of the auxiliary stabilizing arc plate is fitted on the driving barrel 6, and the inner bottom surface of the outer collecting box 19 is slidably connected to the inner collecting box 27 which can be pulled out from the outside of the filter outer barrel 1, wherein a sealing ring is provided at the connection between the inner collecting box 27 and the outer collecting box 19, and a first limiting ball head 9 is provided at the bottom end of the filter inner barrel 15, and a limiting cylinder 10 is fixedly connected to the center of the inner bottom surface of the filter outer barrel 1, and a plurality of second limiting ball heads 12 which can limit the movement of the first limiting ball head 9 are evenly provided on the top of the inner circumference of the limiting cylinder 10, and a backwashing component which can backwash the filter screen 18 is provided at the lower part of the inner circumference of the filter outer barrel 1.

[0025] A guide cylinder 3 is fixedly connected to the upper part of the inner circumference of the filter outer barrel 1, and the guide cylinder 3 can guide the liquid entering the filter outer barrel 1 to the filter inner barrel 15. A first tension spring 13 is fixedly connected to the lower surface of the guide cylinder 3, and the bottom end of the first tension spring 13 is fixedly connected to an auxiliary pull plate 14 whose end is arranged on the filter inner barrel 15.

[0026] A first support rod 4 is fixedly connected to the bottom end of the inner circumference of the guide cylinder 3, and a guide column 5 is fixedly connected to the center of the lower surface of the first support rod 4. The bottom end of the guide column 5 is slidably connected to a driving barrel 6, wherein the driving barrel 6 can slide and rotate on the guide column 5, and the bottom end of the guide column 5 is sequentially provided with a vertical limiting groove and a spiral groove from top to bottom, and the vertical limiting groove is connected to the spiral groove, and the inner circumference of the driving barrel 6 is fixedly connected with a limiting block at one end which can be slidably connected in the spiral groove and the vertical limiting groove, and the two ends of the outer collecting box 19 are respectively fixed to the driving barrel 6 and the filtering inner barrel 15, and the end of the scraper 20 away from the filtering inner barrel 15 is fixed to the driving barrel 6, so when the driving barrel 6 moves up and down or rotates, it will bring the scraper 20 along The filter barrel 15 is provided with a first pull-out opening adapted to the size of the inner collection box 27, and the middle part of the outer circumference of the filter outer barrel 1 is provided with a second pull-out opening adapted to the first pull-out opening, wherein the size of the second pull-out opening is twice that of the first pull-out opening, and a sealing block is provided at the outer end of the second pull-out opening, so that when a person needs to pull the inner collection box 27 out of the outer collection box 19, the sealing block needs to be opened first, and a hanging ring is provided on the side of the inner collection box 27 away from the driving barrel 6, so a person needs to use a hook to hook the hanging ring, and then the person can pull the inner collection box 27 out of the outer collection box 19;

[0027] By setting up the filtering inner barrel 15, the scraper 20 and the outer collecting box 19, when the filter net 18 is blocked, the scraper 20 can scrape the blocked particles into the outer collecting box 19, so that the Chinese medicine fertilizer production filtering device can be used for a long time, thereby greatly increasing its filtering efficiency.

[0028] The inner circumferential surface of the bottom end of the filter inner barrel 15 is fixedly connected to the second support rod 7, and the center of the lower surface of the second support rod 7 is fixedly connected to the third support rod 8. The first limiting ball head 9 is fixedly connected to the bottom end of the third support rod 8. Therefore, when the filter inner barrel 15 moves downward, it will move downward with the second support rod 7, the second support rod 7 will move the third support rod 8, and the third support rod 8 will move downward with the first limiting ball head 9. The upper part of the inner circumferential surface of the limiting cylinder 10 is evenly provided with a plurality of limiting installation grooves, and the plurality of second limiting ball heads 12 are respectively slidably connected in the corresponding limiting installation grooves, and the inner side surface of the second limiting ball head 12 is fixedly connected to a first spring 11 with one end arranged in the limiting installation groove. Therefore, when the first limiting ball head 9 contacts the second limiting ball head 12, the first limiting ball head 9 will be blocked by the second limiting ball head 12, and the second limiting ball head 12 will also be squeezed by the first limiting ball head 9, thereby sliding into the limiting installation groove.

[0029] The backwashing component includes an auxiliary backwashing cylinder 21 fixedly connected to the lower part of the inner circumference of the filter outer barrel 1, a backwashing baffle 17 slidably connected to the inner circumference of the auxiliary backwashing cylinder 21, a sealing plate 23 is clamped on the upper surface of the backwashing baffle 17, wherein the middle part of the backwashing baffle 17 is hollow, and the sealing plate 23 can completely cover the hollow part, a plurality of second springs 22 are fixedly connected to the lower surface of the backwashing baffle 17, one end of which is arranged on the auxiliary backwashing cylinder 21, and a plurality of third springs 25 are evenly fixedly connected to the lower surface of the backwashing baffle 17, and the bottom end of the third spring 25 is fixedly connected to a An auxiliary opening rod 24 is formed at one end thereof and passes through the backwash baffle 17 and is fixedly connected to the sealing plate 23. A plurality of push rods 26 are evenly fixedly connected to the inner bottom surface of the auxiliary recoil cylinder 21, and the top ends of the plurality of push rods 26 can respectively abut against the corresponding auxiliary opening rods 24. A plurality of overflow ports are evenly formed at the top of the inner circumference of the auxiliary recoil cylinder 21, each of which has one end extending to the lower surface of the auxiliary recoil cylinder 21. Therefore, the liquid filtered by the filter screen 18 will flow into the backwash baffle 17. When the height of the liquid reaches the overflow port, it will flow into the filter outer barrel 1 from the overflow port.

[0030] A plurality of limiting slide grooves are evenly formed on the inner circumference of the filter outer barrel 1 , and a plurality of limiting blocks 16 , one end of which is slidably connected in the limiting slide grooves, are evenly fixed on the outer circumference of the filter inner barrel 15 .

[0031] In summary, when the Chinese medicine fertilizer production filtering device is used, the liquid to be filtered will enter the filter outer barrel 1 from the liquid inlet pipe, and then be transported to the filter inner barrel 15 through the guide cylinder 3, and then the liquid will be filtered through the filter screen 18, and the filtered liquid will flow from the overflow port to the inner bottom surface of the filter outer barrel 1, and then be discharged through the liquid outlet pipe;

[0032] When the Chinese medicine fertilizer production filter device is used for a long time, the upper surface of the filter screen 18 will be clogged. Then, under the long-term clogging, the liquid in the filter inner barrel 15 will slowly rise, so that under the action of the liquid's own gravity, the filter inner barrel 15 will move downward together with the filter screen 18. At the same time, through the setting of the outer collecting box 19, the drive barrel 6 can be prompted to move downward together. When the drive barrel 6 moves downward, because the limit block is in the vertical limit groove at this time, the drive barrel 6 will not rotate. When the drive barrel 6 continues to move downward, the limit block will enter the spiral groove, so that the drive barrel 6 will rotate while moving downward, and the scraper 20 will rotate with the drive barrel 6, so as to scrape off the particles on the upper surface of the filter screen 18;

[0033] When the filter inner barrel 15 continues to move downward, the filter inner barrel 15 will be inserted into the auxiliary backwashing cylinder 21. When the filter inner barrel 15 moves downward again, the liquid on the backwashing baffle 17 will be squeezed into the filter inner barrel 15, so that the filter screen 18 can be backwashed. Through backwashing, small particles blocked in the filter screen 18 can be flushed out (the second spring 22 is set to prevent the backwashing baffle 17 from moving downward). When the backwashing liquid completely flows into the filter inner barrel 15, the lower surface of the filter inner barrel 15 will contact the backwashing baffle 17, and then the backwashing baffle 17 will move downward with the filter inner barrel 15.

[0034] When the filter inner barrel 15 continues to move downward, the first limiting ball head 9 will contact the second limiting ball head 12. When the first limiting ball head 9 contacts the second limiting ball head 12, the driving barrel 6 has rotated, and the backwashing baffle 17 has also moved downward with the filter inner barrel 15 (the rotation of the driving barrel 6 and the backwashing liquid entering the filter inner barrel 15 are synchronized, because the limiting block at this time will just enter the spiral groove). When the first limiting ball head 9 passes over the second limiting ball head 12, the push rod 26 will push the auxiliary opening rod 24 upward, thereby prompting the sealing plate 23 to move upward, and then the liquid can flow into the filter outer barrel 1 from the space between the backwashing baffle 17 and the sealing plate 23. When the liquid continues to flow into the filter outer barrel 1 (the scraper at this time 20 has completed the scraping of the filter screen 18, so that the liquid in the filter inner barrel 15 will be filtered normally through the filter screen 18) the height of the liquid in the filter inner barrel 15 will slowly decrease, so when the tension of the first tension spring 13 plus the elastic force of the second spring 22 is greater than the blocking force of the second limiting ball head 12 on the first limiting ball head 9, the first limiting ball head 9 will pass over the second limiting ball head 12, so that the filter inner barrel 15 will return to its initial position, and when the filter inner barrel 15 returns to its initial position, the scraper 20 will also return to its initial position, and the scraper 20 will scrape the upper surface of the filter screen 18 again, and at the same time, the backwash baffle 17 will move upward under the action of the second spring 22, so as to return to its initial position, and the sealing plate 23 will also return to its initial position under the action of the third spring 25;

[0035] When the personnel need to process the particles in the inner collecting box 27 (the Chinese medicinal fertilizer production filtering device has stopped working at this time), the personnel can hook out the inner collecting box 27 with a hook, and then after cleaning the particles out of the inner collecting box 27, the personnel can insert the inner collecting box 27 into the outer collecting box 19.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A filtering device for producing Chinese medicinal fertilizer, comprising a filtering outer barrel (1) and a barrel cover (2) arranged on the top of the filtering outer barrel (1), characterized in that: The filter outer barrel (1) is provided with a filter inner barrel (15) that can move up and down, and the inner bottom surface of the filter inner barrel (15) is evenly fixed with a plurality of filter screens (18), and the upper surface of the filter screen (18) is provided with a scraper (20) that can scrape the upper surface thereof, and an outer collection box (19) that can be matched with the scraper (20) is provided between two adjacent filter screens (18), and the inner bottom surface of the outer collection box (19) is slidably connected with an inner collection box (27) that can be pulled out from the filter outer barrel (1), a first limiting ball head (9) is provided at the bottom end of the filter inner barrel (15), and a limiting cylinder (10) is fixedly connected to the center of the inner bottom surface of the filter outer barrel (1), and a plurality of second limiting ball heads (12) that can limit the movement of the first limiting ball head (9) are evenly provided on the top of the inner circumference of the limiting cylinder (10), and a backwashing component that can backwash the filter screen (18) is provided at the lower part of the inner circumference of the filter outer barrel (1).

2. A Chinese medicinal fertilizer production filtering device according to claim 1, characterized in that: A guide tube (3) is fixedly connected to the upper portion of the inner circumference of the filter outer barrel (1), a first tension spring (13) is fixedly connected to the lower surface of the guide tube (3), and a bottom end of the first tension spring (13) is fixedly connected to an auxiliary pull plate (14) with one end arranged on the filter inner barrel (15).

3. A Chinese medicinal fertilizer production filtering device according to claim 2, characterized in that: The bottom end of the inner circumference of the guide cylinder (3) is fixedly connected to a first support rod (4), the center of the lower surface of the first support rod (4) is fixedly connected to a guide column (5), the bottom end of the guide column (5) is slidably connected to a driving barrel (6), and the bottom end of the guide column (5) is provided with a vertical limit groove and a spiral groove in sequence from top to bottom, and the vertical limit groove is connected to the spiral groove, the inner circumference of the driving barrel (6) is fixedly connected to a limit block at one end which can be slidably connected in the spiral groove and in the vertical limit groove, and the outer retractable The two ends of the collecting box (19) are respectively fixed to the driving barrel (6) and the filtering inner barrel (15); one end of the scraper (20) away from the filtering inner barrel (15) is fixed to the driving barrel (6); and the lower surface of the scraper (20) is in contact with the upper surface of the filtering net (18); a first pull-out opening matching the size of the inner collecting box (27) is provided at the bottom end of the outer peripheral surface of the filtering inner barrel (15); and a second pull-out opening matching the first pull-out opening is also provided in the middle of the outer peripheral surface of the filtering outer barrel (1).

4. A Chinese medicinal fertilizer production filtering device according to claim 1, characterized in that: A second support rod (7) is fixedly connected to the inner circumferential surface of the bottom end of the filtering inner barrel (15); a third support rod (8) is fixedly connected to the center of the lower surface of the second support rod (7); a first limiting ball head (9) is fixedly connected to the bottom end of the third support rod (8); a plurality of limiting installation grooves are evenly formed on the upper portion of the inner circumferential surface of the limiting cylinder (10); a plurality of the second limiting ball heads (12) are respectively slidably connected in the corresponding limiting installation grooves; and a first spring (11) having one end arranged in the limiting installation groove is fixedly connected to the inner side surface of the second limiting ball head (12).

5. A Chinese medicinal fertilizer production filtering device according to claim 1, characterized in that: The backwash component comprises an auxiliary backwash cylinder (21) fixedly connected to the lower part of the inner circumference of the filter outer barrel (1), a backwash baffle (17) slidably connected to the inner circumference of the auxiliary backwash cylinder (21), a sealing plate (23) being clamped on the upper surface of the backwash baffle (17), a plurality of second springs (22) each having one end disposed on the auxiliary backwash cylinder (21) being fixedly connected to the lower surface of the backwash baffle (17), and a plurality of third springs (25) being evenly fixedly connected to the lower surface of the backwash baffle (17). The bottom end of the third spring (25) is fixedly connected to an auxiliary opening rod (24) whose end passes through the backwash baffle (17) and is fixedly connected to the sealing plate (23); a plurality of push rods (26) are evenly fixedly connected to the inner bottom surface of the auxiliary recoil cylinder (21); and the top ends of the plurality of push rods (26) can respectively abut against the corresponding auxiliary opening rods (24); and a plurality of overflow ports are evenly opened on the top of the inner circumference of the auxiliary recoil cylinder (21), one end of each of which extends to the lower surface of the auxiliary recoil cylinder (21).

6. A Chinese medicinal fertilizer production filtering device according to claim 1, characterized in that: The inner circumference of the filter outer barrel (1) is evenly provided with a plurality of limit slide grooves, and the outer circumference of the filter inner barrel (15) is evenly fixed with a plurality of limit blocks (16) one end of which is slidably connected to the limit slide grooves.

Images