Filter material loss prevention mechanism and biological filter

Abstract

The mechanism comprises a filter material assembly and a slot, the filter material assembly is connected with the slot in an inserted mode, the filter material assembly is composed of a first filter material plate, a second filter material plate and a third filter material plate, the first filter material plate, the second filter material plate and the third filter material plate are all provided with rectangular grooves, and the rectangular grooves are communicated with the slot. A connecting ring is arranged in the rectangular groove, a connecting assembly is arranged in the rectangular groove and used for connecting the first filter material plate, the second filter material plate and the third filter material plate, and a limiting mechanism is arranged on the inserting groove and used for fixing the filter material assembly. According to the utility model, the filter material assembly is modularly arranged, so that when the filter material assembly needs to be disassembled, the connecting rod only needs to be rotated to enable the claw hooks on the two sides of the connecting rod to extend towards the two sides through thread transmission, the connecting assembly can be taken down, the limitation on the filter material assembly is relieved, and the filter material plate can be taken out by lifting the filter material plate upwards, so that the filter material assembly is convenient to disassemble.

Description

Technical Field

[0001] The utility model belongs to the technical field of biological filter tanks, and particularly relates to a filter material loss prevention mechanism and a biological filter tank. Background Art

[0002] Biofilters are biological treatment structures made of crushed stone or plastic product fillers. Sewage is purified by contacting the gaps between the microbial membranes growing on the surface of the fillers. The principle of biofilters is to use the biodegradation of microorganisms to remove pollutants in wastewater. During the operation of biofilters, due to the growth, reproduction and metabolic activities of microorganisms, a certain amount of biofilm and biological sludge will be produced. These substances will gradually accumulate on the surface of the filter material, affecting the filtering effect of the filter and the activity of the microorganisms. Therefore, regular cleaning is necessary.

[0003] However, there are some problems with the existing technology: some biological filter materials, such as gravel, plastic products, ceramsite, floating fillers, lightweight filter materials, etc., need to be added to the general biological filter. The volume of some filter materials is relatively small. When the filter is drained, the water flow will carry the filter materials out of the filter, resulting in a decrease in the effect of the filter. In addition, the biological filter needs to be cleaned regularly, and the disassembly and assembly of the filter plate requires more manpower or machinery for lifting, which costs a lot of human resources. Therefore, we propose a filter material loss prevention mechanism and a biological filter. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a mechanism for preventing filter material loss and a biological filter tank. By setting the filter assembly to be connected with the slot on the filter tank to form a filter material pool, the filter material can be prevented from being lost with the water flow. The filter material assembly is modularized and fixed with connecting parts to make the filter assembly easy to disassemble and clean.

[0005] The utility model is implemented as follows: a filter material loss prevention mechanism comprises a filter material assembly and a slot, the filter material assembly is plugged into the slot, the filter material assembly consists of a first filter material plate, a second filter material plate and a third filter material plate, the first filter material plate, the second filter material plate and the third filter material plate are all provided with rectangular grooves, a connecting ring is provided inside the rectangular groove, a connecting assembly is provided inside the rectangular groove for connecting the first filter material plate, the second filter material plate and the third filter material plate, and a limiting mechanism is provided on the slot for fixing the filter material assembly.

[0006] Optionally, both sides of the first filter material plate are provided with card slots, and the second filter material plate and the third filter material plate are both provided with card blocks, and the card slots are plugged into the card blocks.

[0007] Optionally, the connecting assembly includes a connecting rod, threaded holes are provided at both ends of the connecting rod, grab hooks are provided at both ends of the connecting rod, threaded ends are provided on the grab hooks, and the connecting rod and the grab hooks are connected by threads.

[0008] Optionally, the limiting mechanism includes a limiting rod, a cavity is opened inside the slot, the limiting rod passes through the slot through the cavity, a retaining ring is sleeved on the limiting rod, the retaining ring is slidably connected to the cavity, a spring is arranged inside the cavity, one end of the spring is fixedly connected to the cavity, and the other end of the spring is in contact with the retaining ring.

[0009] Optionally, a rubber column head is provided at one end of the limit rod, a handle is provided at the other end of the limit rod, a protrusion is provided on the limit rod, an avoidance hole is provided on the slot, the avoidance hole is provided corresponding to the protrusion, an annular groove is opened on the slot, and the protrusion is rotatably connected to the annular groove.

[0010] A biological filter tank comprises the above-mentioned filter material loss prevention mechanism and a filter tank, wherein the filter tank is provided with an outlet pipe, a slot is provided in the filter tank, a filter material component is inserted in the slot, the filter material component and the filter tank form a filter material pool for placing biological filter material, a filter screen is provided inside the filter tank, and the filter screen and the filter tank form a water outlet trough.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. By setting the filter material assembly and plugging it into the filter pool to form a filter material pool, the biological filter material is isolated in the filter material pool to prevent the filter material from flowing to the drain outlet when the water flows, causing the filter material to be lost, and effectively prevent the impact of the filter material loss on the microbial breeding environment.

[0013] 2. The filter material assembly is modularly arranged, and blocks, slots and connecting components are arranged on the filter material plate. Since the upper end of the slot is open, when the filter material assembly needs to be removed, it is only necessary to rotate the connecting rod so that the hooks on both sides of the connecting rod extend to both sides through thread transmission, and then the connecting component can be removed to release the restriction on the filter material assembly. Then the filter material plate can be pulled up to be removed, which is convenient for disassembly.

[0014] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the filter pool provided by the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the filter pool provided by the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the filter material assembly provided by the utility model;

[0018] Figure 4 It is a schematic diagram of the connection assembly provided by the utility model;

[0019] Figure 5 It is a schematic diagram of the limiting mechanism provided by the utility model;

[0020] Figure 6 yes Figure 5 A magnified schematic diagram of part A.

[0021] In the figure: 1. filter material assembly; 11. first filter material plate; 12. second filter material plate; 13. third filter material plate; 14. slot; 15. block; 16. rectangular slot; 17. connecting ring; 2. connecting assembly; 21. connecting rod; 22. grab hook; 3. limiting mechanism; 31. cavity; 32. spring; 33. avoidance hole; 34. annular groove; 4. limiting rod; 41. rubber column head; 42. handle; 43. bump; 44. retaining ring; 5. filter tank; 51. outlet pipe; 52. filter material tank; 53. filter screen plate; 54. outlet tank; 55. slot. DETAILED DESCRIPTION

[0022] In order to further understand the content, features and effects of the utility model, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0023] like Figures 1 to 6 As shown, an anti-filter material loss mechanism provided by an embodiment of the utility model includes a filter material component 1 and a slot 55, the filter material component 1 is plugged into the slot 55, the filter material component 1 is composed of a first filter material plate 11, a second filter material plate 12 and a third filter material plate 13, the first filter material plate 11, the second filter material plate 12 and the third filter material plate 13 are all provided with a rectangular groove 16, a connecting ring 17 is provided inside the rectangular groove 16, a connecting component 2 is provided inside the rectangular groove 16 for connecting the first filter material plate 11, the second filter material plate 12 and the third filter material plate 13, and a limiting mechanism 3 is provided on the slot 55 for fixing the filter material component 1.

[0024] It should be noted that in the biological filter, when wastewater passes through the filter material, microorganisms will attach to the surface of the filter material and form a biofilm. These microorganisms include bacteria, fungi, protozoa, etc. These microorganisms degrade organic matter in the wastewater through metabolic activities, converting it into harmless substances such as carbon dioxide, water and biomass. The filter material itself also plays a role of physical filtration, intercepting suspended solids and some dissolved substances in the wastewater. Therefore, in order to maintain the efficiency of the filter and avoid clogging of the filter material, the biological filter needs to be cleaned regularly.

[0025] like Figure 1 and Figure 2A biological filter tank includes the above-mentioned filter material loss prevention mechanism, and also includes a filter tank 5, the filter tank 5 is provided with an outlet pipe 51, the filter tank 5 is provided with a slot 55, the slot 55 is plugged with a filter material component 1, the filter material component 1 and the filter tank 5 form a filter material pool 52 for placing biological filter material, the filter tank 5 is provided with a filter mesh plate 53 inside, the filter mesh plate 53 and the filter tank 5 form a water outlet trough 54.

[0026] Furthermore, after the filter material assembly 1 is plugged into the slot 55, the filter pool 5 is divided to form a filter material pool 52, and the biological filter material is placed in the filter material pool 52. The outlet pipe 51 is located above the filter material pool 52. When the pretreated wastewater enters the filter pool 5, it will first enter the filter material pool 52, and the biological filter material will perform physical filtration to absorb fine particles in the wastewater and form a biofilm. It should be noted that the size of the grid holes on the first filter material plate 11, the second filter material plate 12 and the third filter material plate 13 in this embodiment can be selected by specification to prevent the filter material from being lost through the filter material assembly 1.

[0027] Specifically, two sides of the first filter material plate 11 are provided with card slots 14 , and the second filter material plate 12 and the third filter material plate 13 are both provided with card blocks 15 , and the card slots 14 are plugged into the card blocks 15 .

[0028] Specifically, the connecting assembly 2 includes a connecting rod 21, threaded holes are provided at both ends of the connecting rod 21, grab hooks 22 are provided at both ends of the connecting rod 21, threaded ends are provided on the grab hooks 22, and the connecting rod 21 and the grab hooks 22 are connected by threads.

[0029] Furthermore, the upper end of the card slot 14 is open, so when the filter material assembly 1 needs to be disassembled, it is only necessary to rotate the connecting rod 21. The connecting rod 21 rotates, so that the grab hook 22 that is threadedly matched with the connecting rod 21 is threadedly transmitted, so that the grab hook 22 extends to both sides through the thread transmission, and the grab hook 22 is separated from the connecting ring 17, so that the connecting assembly 2 can be removed, the restriction on the filter material assembly 1 is released, and then the filter material plate can be pulled upward to be taken out, and the disassembly can be completed by one person without tools.

[0030] Specifically, the limiting mechanism 3 includes a limiting rod 4, a cavity 31 is provided inside the slot 55, the limiting rod 4 passes through the slot 55 through the cavity 31, a rubber column head 41 is provided at one end of the limiting rod 4, and a handle 42 is provided at the other end of the limiting rod 4, a protrusion 43 is provided on the limiting rod 4, and an avoidance hole 33 is provided on the slot 55, and the avoidance hole 33 is provided corresponding to the protrusion 43, an annular groove 34 is provided on the slot 55, and the protrusion 43 is rotatably connected to the annular groove 34, a retaining ring 44 is sleeved on the limiting rod 4, and the retaining ring 44 is slidably connected to the cavity 31, and a spring 32 is provided inside the cavity 31, one end of the spring 32 is fixedly connected to the cavity 31, and the other end of the spring 32 is in contact with the retaining ring 44.

[0031] Furthermore, since the filter material assembly 1 and the slot 55 are plug-in and not fixed, a limiting mechanism 3 is provided to replace the commonly used screw fixing, which is also convenient for disassembly of the filter material assembly 1. When the limiting rod 4 is inserted into the cavity 31, the protrusion 43 passes through the avoidance hole 33 and enters the annular groove 34. The handle 42 is rotated 90°, and the handle 42 drives the protrusion 43 to rotate. Since the avoidance hole 33 and the protrusion 43 are correspondingly arranged, the protrusion 43 is restricted after rotating in the annular groove 34, so that the limiting rod 4 cannot be disengaged, even if the rubber column head 41 always presses against the filter material assembly 1 to prevent the filter material assembly 1 from shaking;

[0032] Furthermore, when disassembly is required, the handle 42 is turned, and when the position of the protrusion 43 is aligned with the avoidance hole 33, the spring 32 will push the retaining ring 44 through elastic force, so that the limiting rod 4 moves outward, making it easier for the worker to pull up the limiting rod 4.

[0033] Working principle: The filter material component 1 is arranged to be plugged into the slot 55 on the filter pool 5 to form a filter material pool 52, and the biological filter material is isolated in the filter material pool 52 to prevent the filter material from flowing to the drain outlet when the water flows, causing the filter material to be lost, and effectively preventing the impact of the filter material loss on the microbial breeding environment. In addition, the filter material component 1 is modularly arranged, and a card block 15, a card slot 14 and a connecting component 2 are arranged on the filter material plate. Since the upper end of the card slot 14 is open, when the filter material component 1 needs to be disassembled, it is only necessary to rotate the connecting rod 21 so that the hooks 22 on both sides of the connecting rod 21 extend to both sides through threaded transmission, so that the connecting component 2 can be removed, the restriction on the filter material component 1 can be released, and then the filter material plate can be pulled upward to be removed, which is convenient for disassembly.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter material loss prevention mechanism, comprising a filter material assembly (1) and a slot (55), characterized in that: The filter material assembly (1) is plugged into the slot (55); the filter material assembly (1) is composed of a first filter material plate (11), a second filter material plate (12), and a third filter material plate (13); the first filter material plate (11), the second filter material plate (12), and the third filter material plate (13) are each provided with a rectangular groove (16); a connecting ring (17) is provided inside the rectangular groove (16); a connecting assembly (2) is provided inside the rectangular groove (16) for connecting the first filter material plate (11), the second filter material plate (12), and the third filter material plate (13); and a limiting mechanism (3) is provided on the slot (55) for fixing the filter material assembly (1).

2. The filter material loss prevention mechanism according to claim 1, characterized in that: The first filter material plate (11) is provided with card slots (14) on both sides, and the second filter material plate (12) and the third filter material plate (13) are both provided with card blocks (15), and the card slots (14) are plugged into the card blocks (15).

3. The filter material loss prevention mechanism according to claim 1, characterized in that: The connection assembly (2) comprises a connection rod (21), threaded holes are provided at both ends of the connection rod (21), grab hooks (22) are provided at both ends of the connection rod (21), threaded ends are provided on the grab hooks (22), and the connection rod (21) and the grab hooks (22) are connected via threads.

4. The filter material loss prevention mechanism according to claim 1, characterized in that: The limiting mechanism (3) comprises a limiting rod (4), a cavity (31) is provided inside the slot (55), the limiting rod (4) passes through the slot (55) through the cavity (31), a retaining ring (44) is sleeved on the limiting rod (4), the retaining ring (44) is slidably connected to the cavity (31), a spring (32) is provided inside the cavity (31), one end of the spring (32) is fixedly connected to the cavity (31), and the other end of the spring (32) is in contact with the retaining ring (44).

5. The filter material loss prevention mechanism according to claim 4, characterized in that: A rubber column head (41) is provided at one end of the limit rod (4), a handle (42) is provided at the other end of the limit rod (4), a convex block (43) is provided on the limit rod (4), an avoidance hole (33) is provided on the slot (55), the avoidance hole (33) and the convex block (43) are arranged correspondingly, an annular groove (34) is provided on the slot (55), and the convex block (43) is rotatably connected to the annular groove (34).

6. A biofilter, comprising the filter material loss prevention mechanism according to any one of claims 1 to 5, characterized in that: The invention also comprises a filter pool (5), wherein the filter pool (5) is provided with a water outlet pipe (51), wherein a slot (55) is provided in the filter pool (5), wherein a filter material assembly (1) is inserted in the slot (55), wherein the filter material assembly (1) and the filter pool (5) form a filter material pool (52) for placing biological filter material, wherein a filter screen plate (53) is provided inside the filter pool (5), and wherein the filter screen plate (53) and the filter pool (5) form a water outlet groove (54).

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