Soil covering type microbial contact oxidation sewage treatment device

Abstract

The invention relates to the technical field of sewage treatment devices, in particular to a soil covering type microorganism contact oxidation sewage treatment device which comprises a water purification pipe, an internally attached cavity and a sealing ring are formed in the water purification pipe, a treatment box is detachably installed in the internally attached cavity, and a positioning structure is further arranged in the internally attached cavity; the positioning structure is matched with a locking piece fixedly arranged on the treatment box, so that the treatment box can be fixed in the water purification pipe; the conduction assembly is arranged in the water purification pipe and comprises a driving part rotationally installed in the water purification pipe, a moving structure is arranged on the driving part and comprises a moving part in sliding connection with the sealing ring, the moving part is matched with the sealing ring, and when the treatment box is inserted and pulled out, the driving part can drive the moving part to slide relative to the sealing ring; and in the action process of the moving part, the rotating part arranged on the moving part can rotate relative to the moving part, so that the conduction amount of the water purification pipe is increased.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment devices, in particular to a soil-covered microbial contact oxidation sewage treatment device. Background Art

[0002] In recent years, my country's sewage treatment has made unprecedented progress. With the improvement of people's living standards and the continuous acceleration of urbanization, the demand and consumption of freshwater resources are also increasing. Sewage treatment plants have played a huge role in solving my country's water pollution problem and have greatly alleviated the crisis of water pollution in my country.

[0003] The treatment of sewage mainly includes pretreatment, treatment, secondary treatment and deep treatment. The secondary treatment mainly uses biological methods to remove organic pollutants in sewage. At present, organic matter can be treated by using soil cover microbial contact oxidation treatment. This method is a sewage treatment technology that combines the advantages of biofilm method and activated sludge method. Usually, a soil box is set in the sewage treatment tank, and a microorganism placement box is placed in the soil box. The core is to use the microorganisms in the soil cover layer to degrade organic matter, so as to achieve the purpose of purifying sewage.

[0004] However, as the use time increases, the activity of microorganisms in the soil box will decrease, so the soil box needs to be replaced in time. When replacing the soil box, the sewage needs to be cut off first, and then the soil box is replaced. After the replacement is completed, the sewage needs to be conducted again. The whole process requires two steps for conducting, cutting off the sewage and replacing the soil box. The whole process is complicated and time-consuming. Summary of the invention

[0005] The object of the present invention is to provide a soil-covered microbial contact oxidation sewage treatment device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A soil-covered microbial contact oxidation sewage treatment device comprises: a clean water pipe, wherein an inner chamber and a sealing ring are formed in the clean water pipe, a treatment box is detachably installed in the inner chamber, and a positioning structure is also arranged in the inner chamber, wherein the positioning structure cooperates with a locking member fixedly arranged on the treatment box to fix the treatment box in the clean water pipe;

[0008] The conducting component is arranged in the clean water pipe, including a driving member rotatably installed in the clean water pipe, and a moving structure is arranged on the driving member, and the moving structure includes a moving member slidably connected to the sealing ring, and the moving member cooperates with the sealing ring. When the treatment box is plugged in and out, the driving member drives the moving member to slide relative to the sealing ring, thereby conducting or blocking the clean water pipe, and during the operation of the moving member, the rotating member arranged on the moving member will rotate relative to the moving member, thereby increasing the conduction amount of the clean water pipe.

[0009] As described above, in the soil-covered microbial contact oxidation sewage treatment device: the locking member comprises an abutment plate fixedly arranged on the treatment box, and two groups of locking grooves are symmetrically opened on one side of the abutment plate along its length direction.

[0010] The soil-covered microbial contact oxidation sewage treatment device as described above: the positioning structure includes a plug-in cylinder fixedly arranged in the inner chamber, and the plug-in cylinder is symmetrically arranged in two groups along the axial direction of the inner chamber, and a spring is slidably arranged in each group of the plug-in cylinders, one end of the spring abuts against the bottom of the plug-in cylinder, and the other end abuts against a plug-in rod slidably arranged in the plug-in cylinder, and a pulley adapted to the locking groove is rotatably installed on the end of the plug-in rod away from the spring.

[0011] The soil-covered microbial contact oxidation sewage treatment device as described above: the driving component includes a driving rod rotatably installed in the clean water pipe, and a gear is coaxially fixedly arranged at one end of the driving rod toward the inner chamber, and the gear cooperates with a toothed plate fixedly arranged on the treatment box. When the treatment box moves relative to the clean water pipe, the toothed plate can force the gear to rotate.

[0012] As described above, the soil-covered microbial contact oxidation sewage treatment device: the moving part includes a blocking plate slidably connected to the sealing ring, and the blocking plate has a plurality of groups of leading grooves equidistantly arranged along its circumferential direction.

[0013] As described above, the soil-covered microbial contact oxidation sewage treatment device: the movable structure also includes a fixed sleeve coaxially fixed with the blocking plate, the fixed sleeve is sleeved on the driving rod, and a protrusion is formed on the inner wall of the fixed sleeve, and the protrusion is slidably arranged in a spiral groove opened on the outer wall of the driving rod.

[0014] The soil-covered microbial contact oxidation sewage treatment device as described above: the rotating part includes a rotating plate rotatably mounted on the blocking plate, the rotating plate is provided with a through hole adapted to the leading groove, and the rotating plate is provided with a through hole, a trigger block is formed on the inner wall of the through hole, and the trigger block is connected to the driving rod through the trigger part.

[0015] As described above, the soil-covered microbial contact oxidation sewage treatment device: the trigger member includes a linkage rod coaxially fixedly arranged with the driving rod, the linkage rod is inserted into the through hole, and a notch groove is opened on the linkage rod, and the trigger block is rotatably arranged in the notch groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The clean water pipe can be directly connected to the sewage drainage device for purification;

[0018] By setting a treatment box in the water purification pipe, the organic pollutants in the sewage are converted into harmless substances by utilizing the metabolism of microorganisms in the treatment box, and finally the sewage is purified. At the same time, the cooperation between the positioning structure and the locking part on the treatment box can be used to quickly disassemble the treatment box, thereby ensuring the continuous effectiveness of the soil bioremediation process, preventing the accumulation of pollutants in the soil, and protecting the ecological environment and human health.

[0019] At the same time, by setting up a conduction component, the tooth plate fixed on the treatment box is used to drive the driving rod to rotate, so that when the treatment box is inserted or pulled out, the driving rod cooperating with the treatment box can drive the blocking plate to simultaneously perform the conduction and blocking actions of the clean water pipe. The whole process is relatively convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of a soil-covered microbial contact oxidation sewage treatment device.

[0021] Figure 2 This is a schematic diagram of the structure inside the water purification pipe in the soil-covered microbial contact oxidation sewage treatment device.

[0022] Figure 3 This is a schematic diagram of the structure of the internal chamber in the soil-covered microbial contact oxidation sewage treatment device.

[0023] Figure 4 It is a schematic diagram of the structure of the conducting components in the soil-covered microbial contact oxidation sewage treatment device.

[0024] Figure 5 This is a schematic diagram of the structure of the dismantling of the conduction components in the soil-covered microbial contact oxidation sewage treatment device.

[0025] Figure 6 This is a schematic diagram of the structure of the moving parts in the soil-covered microbial contact oxidation sewage treatment device.

[0026] Figure 7This is a schematic diagram of the structure of the treatment box in the soil-covered microbial contact oxidation sewage treatment device.

[0027] Figure 8 It is a schematic diagram of the structure of one end of the inner chamber in the soil-covered microbial contact oxidation sewage treatment device.

[0028] Fig. 9 It is a schematic diagram of the structure of the other end of the inner chamber in the soil-covered microbial contact oxidation sewage treatment device.

[0029] Fig.10 This is a schematic diagram of the positioning structure in a soil-covered microbial contact oxidation sewage treatment device.

[0030] In the figure: 1. water purification pipe; 101. sealing ring; 2. sealing plate; 3. treatment box; 301. biofilm; 4. inner chamber; 401. filter outlet; 402. water inlet; 5. abutment plate; 501. locking groove; 6. blocking plate; 601. leading groove; 7. rotating plate; 701. through hole; 702. trigger block; 703. through hole; 8. driving rod; 801. spiral groove; 9. plug-in cylinder; 10. gear; 11. positioning ring; 1101. groove; 12. fixing sleeve; 1201. protrusion; 1202. protrusion; 13. placement box; 14. tooth plate; 15. plug-in rod; 16. spring; 17. pulley; 18. linkage rod; 1801. notch groove. DETAILED DESCRIPTION

[0031] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0032] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0033] In addition, in order to better illustrate the present application, numerous specific details are provided in the specific embodiments below. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, and elements well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0034] See also Figure 1-Figure 10 In an embodiment of the present invention, a soil-covered microbial contact oxidation sewage treatment device comprises:

[0035] A water purification pipe 1, wherein an inner chamber 4 and a sealing ring 101 are formed in the water purification pipe 1, a treatment box 3 is detachably installed in the inner chamber 4, and a positioning structure is also provided in the inner chamber 4, and the positioning structure cooperates with a locking member fixedly provided on the treatment box 3 to fix the treatment box 3 in the water purification pipe 1;

[0036] Preferably, see Figure 2 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 The clean water pipe 1 is connected to the sewage drainage device, and a plugging plate 2 is fixedly provided on the above-mentioned treatment box 3. The plugging plate 2 is provided in an arc-shaped plate, and two groups of hand-held handles are symmetrically fixedly provided on the plugging plate 2. The treatment box 3 can be inserted into the inner chamber 4 through the hand-held handles, and after the treatment box 3 is inserted into the inner chamber 4, the plugging plate 2 can just overlap with the outer wall of the clean water pipe 1;

[0037] In particular, see Figure 2 , Figure 3 , Figure 8 , Fig. 9 The above-mentioned inner chamber 4 is as follows Figure 8 , Fig. 9 As shown, a filter hole 401 and a water inlet hole 402 are respectively provided. When sewage is treated, the sewage drainage device allows the sewage to pass through the sealing ring 101, enter the treatment box 3 from the water inlet hole 402, and then flow out from the filter hole 401. In this process, the purification capacity of the treatment box 3 can be used to purify the sewage.

[0038] Specifically, the upper layer of the above-mentioned treatment box 3 is set as a soil box, and the left and right ends of the soil box are provided with biofilms 301, and the filter holes 401 are adapted to the biofilms 301, which can just leak out the biofilms 301, and a detachable placement box 13 is provided in the soil box. The placement box 13 is used to store microorganisms that can degrade organic matter in sewage. After the placement box 13 is placed in the soil box, the microorganisms will reproduce in the soil box. When the sewage enters the treatment box 3 after pretreatment, the organic matter in the sewage will fully contact with the microorganisms in the soil box. During the contact process, the organic pollutants in the sewage are converted into harmless substances through the metabolism of the microorganisms, thereby finally achieving sewage purification.

[0039] As the usage time increases, the activity of microorganisms in the placement box 13 may decrease, which will affect the degradation efficiency of pollutants. Therefore, in the embodiment of the present invention, by providing a locking member and a positioning structure, the processing box 3 can be replaced in a timely and rapid manner by utilizing the cooperation between the two, thereby ensuring the continued effectiveness of the soil bioremediation process, preventing pollutants from accumulating in the soil, and protecting the ecological environment and human health.

[0040] For details, please refer to Figure 7 , Fig.10 The locking member comprises an abutment plate 5 fixedly arranged on the processing box 3, and one side of the abutment plate 5 is symmetrically provided with two sets of locking grooves 501 along its length direction;

[0041] Preferably, see Figure 2 , Figure 7 , Figure 8 , Fig.10 The end of the abutment plate 5 away from the sealing plate 2 is provided with an arc-shaped guide slope with a larger radius. The arc-shaped guide slope cooperates with the positioning structure, so that when the treatment box 3 is subsequently inserted, the positioning structure can cooperate with the locking groove 501 to fix the treatment box 3 in the inner chamber 4, thereby facilitating the subsequent sewage purification process.

[0042] The positioning structure includes an inserting tube 9 fixedly arranged in the inner chamber 4, and the inserting tube 9 is symmetrically arranged in two groups along the axial direction of the inner chamber, and a spring 16 is slidably arranged in each group of the inserting tubes 9, one end of the spring 16 abuts against the bottom of the inserting tube 9, and the other end abuts against the inserting rod 15 slidably arranged in the inserting tube 9, and the end of the inserting rod 15 away from the spring 16 is rotatably installed with a pulley 17 adapted to the locking groove 501;

[0043] For details, please refer to Fig.10 The locking groove 501 is provided with a guide slope at one end away from the processing box 3, and the guide slope can guide the pulley 17 so that the pulley 17 can be combined with the locking groove 501 later;

[0044] In detail, in the initial state, the spring 16 is in a compressed state. The spring 16 in the compressed state pushes the plug rod 15 away from the bottom of the plug tube 9. When the blocking plate 2 is held and the treatment box 3 is inserted into the inner chamber 4, the arc-shaped guide slope of the abutment plate 5 will first contact the pulley 17. As the plug rod 15 continues to move, the arc-shaped guide slope will squeeze the pulley 17, so that the plug rod 15 squeezes the spring 16 downward along the axial direction of the plug tube 9, and then the elastic potential energy stored in the spring 16 gradually increases until the slide is When the wheel 17 moves to engage with the guide inclined surface of the locking groove 501, the spring 16 begins to release part of the elastic potential energy, pushing the plug rod 15 to rise, and finally driving the pulley 17 to engage with the locking groove 501. At this time, under the elastic potential energy stored in the spring 16, the pulley 17 will be firmly stuck in the locking groove 501, thereby fixing the treatment box 3 in the clean water pipe 1. At this time, the blocking plate 2 just fits with the outer wall of the clean water pipe 1, and the clean water pipe 1 is closed, so that the sewage can only flow out from the filter hole 401, so as to carry out sewage treatment;

[0045] When the treatment box 3 needs to be replaced after being used for a period of time, hold the sealing plate 2 and pull the treatment box 3 outward with force. The pulley 17 will be separated from the locking groove 501 under the guidance of the guide slope, thereby releasing the fixed state of the treatment box 3 and realizing easy disassembly of the treatment box 3. Subsequently, after replacing the soil in the removed treatment box 3 and the microorganisms in the placement box 13, the water purification pipe 1 can be inserted into the water purification pipe 1 again, and the water purification pipe 1 can continue to be used.

[0046] For further information, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , a soil-covered microbial contact oxidation sewage treatment device, further comprising:

[0047] A conduction component, the conduction component is arranged in the clean water pipe 1, including a driving member rotatably installed in the clean water pipe 1, the driving member is provided with a moving structure, the moving structure includes a moving member slidably connected to the sealing ring 101, the moving member cooperates with the sealing ring 101, when the processing box 3 is plugged in and out, the driving member drives the moving member to slide relative to the sealing ring 101, thereby conducting or blocking the clean water pipe 1, and during the operation of the moving member, the rotating member arranged on the moving member rotates relative to the moving member, thereby increasing the conduction amount of the clean water pipe 1;

[0048] The driving member includes a driving rod 8 rotatably mounted in the water purification pipe 1, and a gear 10 is coaxially fixedly mounted on one end of the driving rod 8 facing the inner chamber 4, and the gear 10 cooperates with a toothed plate 14 fixedly mounted on the treatment box 3. When the treatment box 3 moves relative to the water purification pipe 1, the toothed plate 14 can force the gear 10 to rotate;

[0049] For example, see Figure 4 , Figure 5 , Figure 8 When inserting and placing the processing box 3, the toothed plate 14 fixedly arranged on the side of the processing box 3 is combined with the gear 10, which can drive the gear 10 to rotate clockwise (combined with Figure 3 , Figure 4 , Figure 5 ) half a circle, the driving rod 8 that rotates half a circle will, with the cooperation of the moving structure, open the clean water pipe 1 so that the sewage can flow smoothly into the treatment box 3 for purification.

[0050] The moving part includes a blocking plate 6 which is slidably connected to the sealing ring 101, and the blocking plate 6 is provided with a plurality of leading grooves 601 at equal intervals along its circumferential direction;

[0051] The moving structure further comprises a fixed sleeve 12 coaxially fixedly arranged with the blocking plate 6, the fixed sleeve 12 is sleeved on the driving rod 8, and a protrusion 1202 is formed on the inner wall of the fixed sleeve 12, and the protrusion 1202 is slidably arranged in a spiral groove 801 opened on the outer wall of the driving rod 8;

[0052] For details, please refer to Figure 3 , Figure 4 , Figure 5 , Figure 6 The spiral groove 801 is formed half a circle around the outer wall of the driving rod 8, and two groups of protrusions 1201 are fixedly arranged at equal intervals on the outer side of the fixing sleeve 12 along its circumferential direction. The sealing ring 101 is located on the right side of the water inlet hole 402 (such as Figure 3 As shown), a positioning ring 11 is fixedly provided on one side of the sealing ring 101 facing the inner chamber 4, and two groups of grooves 1101 are equidistantly provided inside the positioning ring 11 along its circumferential direction, and the protruding column 1201 is slidably provided in the groove 1101. Under the restriction of the groove 1101, the fixed sleeve 12 can only drive the blocking plate 6 to slide along the axial direction of the clean water pipe 1.

[0053] For further information, see Figure 2 , Figure 3 , Figure 4 , Figure 5 The rotating member includes a rotating plate 7 rotatably mounted on the blocking plate 6, the rotating plate 7 is provided with a through hole 701 adapted to the leading groove 601, and the rotating plate 7 is provided with a through hole 703, a trigger block 702 is formed on the inner wall of the through hole 703, and the trigger block 702 is connected to the driving rod 8 through a trigger member;

[0054] Preferably, see Figure 5The above-mentioned leading grooves 601 are provided with three groups along the circumferential direction of the blocking plate 6, and correspondingly, the through holes 701 are also provided with three groups along the circumferential direction of the rotating plate 7. Specifically, the rotating plate 7 is fitted with the blocking plate 6. In the initial state, the through holes 701 and the leading grooves 601 are completely staggered, and the blocking plate 6 is fitted with the sealing ring 101. At this time, the clean water pipe 1 is in a blocked state, and the sewage cannot enter the treatment box 3 from the drainage device. In particular, the outer diameter of the above-mentioned blocking plate 6 is smaller than the inner diameter of the clean water pipe 1. When the blocking plate 6 When driven by the moving structure to move away from the positioning ring 11 along the axial direction of the clean water pipe 1, the blocking plate 6 will separate from the sealing ring 101, and then the sewage will pass through the gap between the blocking plate 6 and the clean water pipe 1 into the treatment box 3, and during the movement of the blocking plate 6, the rotating plate 7 will rotate relative to the blocking plate 6 with the cooperation of the trigger member until the blocking plate 6 stops moving, and the through hole 701 just completely overlaps with the leading groove 601. At this time, the sewage can also pass through the rotating plate 7 and the blocking plate 6 into the treatment box 3.

[0055] The trigger member includes a linkage rod 18 coaxially fixedly arranged with the driving rod 8, the linkage rod 18 is inserted into the through hole 703, and a notch groove 1801 is opened on the linkage rod 18, and the trigger block 702 is rotatably arranged in the notch groove 1801;

[0056] In particular, in combination with the number of openings of the leading grooves 601, the central angle of the notch grooves 1801 is set to be 120 degrees, so that the linkage rod 18 can just drive the through hole 701 on the rotating plate 7 to coincide with the leading grooves 601 during the synchronous rotation with the driving rod 8, thereby increasing the conduction amount of sewage passing through the sealing ring 101;

[0057] For details, please refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 In combination with the above, in the initial state, the blocking plate 6 is in a blocking state, the protrusion 1202 is located at the end of the spiral groove 801 near the end of the inner chamber 4, the treatment box 3 is separated from the water purification pipe 1, and when the treatment box 3 is inserted, the tooth plate 14 on the treatment box 3 will force the gear 10 to rotate clockwise (combined with Figure 3 , Figure 5), then the driving rod 8 coaxially fixed with the gear 10 will rotate synchronously with the gear 10. At this time, the contact friction between the groove wall of the spiral groove 801 and the protrusion 1202 will drive the fixed sleeve 12 to drive the blocking plate 6 to move along the axial direction of the clean water pipe 1 in the direction away from the inner chamber 4, until the treatment box 3 is fully inserted into the clean water pipe 1. The gear 10 rotates half a circle under the drive of the toothed plate 14. In this process, due to the continuous rotation of the driving rod 8, the blocking plate 6 will rotate between the spiral groove 801 and the protrusion 1202. With the cooperation of the starter 1202, the blocking plate 6 is driven to separate from the sealing ring 101. At the same time, the trigger block 702 will slide in the notch groove 1801 until the linkage rod 18 rotates 120 degrees following the driving rod 8. The trigger block 702 will fit with the side of the notch groove 1801. Then the linkage rod 18 that continues to rotate will drive the rotating plate 7 to rotate 60 degrees relative to the blocking plate 6, opening the groove 601, and then the sewage conduction in the clean water pipe 1 is increased, so that it is convenient for the sewage to enter the treatment box 3 for treatment;

[0058] When replacing the treatment box 3, the treatment box 3 is quickly pulled outward, and the toothed plate 14 forces the gear 10 to reverse. When reversing, the cooperation between the spiral groove 801 and the protrusion 1202 will first drive the blocking plate 6 to fit with the sealing ring 101 again, and then the linkage rod 18 will drive the rotating plate 7 to block the groove 601 with the cooperation of the notch groove 1801 and the trigger block 702, thereby cutting off the sewage from the right side of the sealing ring 101 to prevent the sewage from continuing to flow during replacement.

[0059] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0060] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A soil-covered microbial contact oxidation sewage treatment device, characterized in that: include: A water purification pipe (1), wherein an inner chamber (4) and a sealing ring (101) are formed in the water purification pipe (1), a treatment box (3) is detachably mounted in the inner chamber (4), and a positioning structure is also arranged in the inner chamber (4), wherein the positioning structure cooperates with a locking member fixedly arranged on the treatment box (3) to fix the treatment box (3) in the water purification pipe (1); A conduction component is arranged in the clean water pipe (1), comprising a driving member rotatably installed in the clean water pipe (1), the driving member being provided with a moving structure, the moving structure comprising a moving member slidably connected to the sealing ring (101), the moving member cooperating with the sealing ring (101), when the treatment box (3) is plugged in or out, the driving member drives the moving member to slide relative to the sealing ring (101), thereby conducting or blocking the clean water pipe (1), and during the operation of the moving member, a rotating member arranged on the moving member rotates relative to the moving member, thereby increasing the conduction amount of the clean water pipe (1).

2. A soil-covered microbial contact oxidation sewage treatment device according to claim 1, characterized in that: The locking member comprises an abutment plate (5) fixedly arranged on the processing box (3), and one side of the abutment plate (5) is symmetrically provided with two groups of locking grooves (501) along its length direction.

3. A soil-covered microbial contact oxidation sewage treatment device according to claim 2, characterized in that: The positioning structure comprises an insert cylinder (9) fixedly arranged in the inner chamber (4), wherein the insert cylinder (9) is symmetrically arranged in two groups along the axial direction of the inner chamber, and a spring (16) is slidably arranged in each group of the insert cylinder (9), one end of the spring (16) abuts against the bottom of the insert cylinder (9), and the other end abuts against an insert rod (15) slidably arranged in the insert cylinder (9), and a pulley (17) adapted to the locking groove (501) is rotatably installed at one end of the insert rod (15) away from the spring (16).

4. A soil-covered microbial contact oxidation sewage treatment device according to claim 2, characterized in that: The driving member comprises a driving rod (8) rotatably mounted in the water purification pipe (1); a gear (10) is coaxially fixedly mounted on one end of the driving rod (8) facing the inner chamber (4); the gear (10) cooperates with a toothed plate (14) fixedly mounted on the treatment box (3); when the treatment box (3) moves relative to the water purification pipe (1), the toothed plate (14) can force the gear (10) to rotate.

5. A soil-covered microbial contact oxidation sewage treatment device according to claim 4, characterized in that: The moving part comprises a blocking plate (6) slidably connected to the sealing ring (101), and the blocking plate (6) is provided with a plurality of groups of leading grooves (601) equidistantly arranged along its circumferential direction.

6. A soil-covered microbial contact oxidation sewage treatment device according to claim 5, characterized in that: The movable structure also includes a fixed sleeve (12) coaxially fixed with the blocking plate (6), the fixed sleeve (12) being sleeved on the driving rod (8), and a protrusion (1202) being formed on the inner wall of the fixed sleeve (12), and the protrusion (1202) being slidably arranged in a spiral groove (801) provided on the outer wall of the driving rod (8).

7. The soil-covered microbial contact oxidation sewage treatment device according to claim 5 is characterized in that: The rotating member comprises a rotating plate (7) rotatably mounted on the blocking plate (6); the rotating plate (7) is provided with a through hole (701) adapted to the leading groove (601); and the rotating plate (7) is provided with a through hole (703); a trigger block (702) is formed on the inner wall of the through hole (703); and the trigger block (702) is connected to the driving rod (8) via a trigger member.

8. The soil-covered microbial contact oxidation sewage treatment device according to claim 7 is characterized in that: The trigger member comprises a linkage rod (18) coaxially fixedly arranged with the driving rod (8), the linkage rod (18) being inserted into the through hole (703), and a notch groove (1801) being provided on the linkage rod (18), and the trigger block (702) being rotatably arranged in the notch groove (1801).

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