Self-cleaning sewage treatment equipment and treatment method

Abstract

The invention discloses a self-cleaning sewage treatment equipment and a treatment method, which relates to the technical field of sewage treatment equipment, including a treatment pool, a groove sunken downward is arranged on one side of the pool bottom, a cleaning roller group for cleaning the bottom surface of the treatment pool is arranged at the bottom of the treatment pool, and the cleaning roller group can be adjusted laterally back and forth in the direction of the groove; the cleaning roller group includes an inner roller body and an outer roller sleeve, the outer roller sleeve is sleeved on the outer periphery of the inner roller body, and can realize one-way linkage, and the lower side circumference of the outer roller sleeve and the pool bottom are pressed against each other; when the cleaning roller group moves toward the groove direction, the outer roller sleeve and the inner roller body are relatively stationary, and the lower side circumference of the outer roller sleeve and the pool bottom are relatively frictionally slid; when the cleaning roller group moves away from the groove direction, the outer roller sleeve and the inner roller body can rotate relatively, and the outer roller sleeve and the pool bottom roll relatively. The invention can clean the bottom of the sewage pool to a certain extent, which is helpful for the aggregation of sediments at the bottom of the sewage pool, and is beneficial for the separation of particulate matter in sewage and the centralized discharge treatment of mud residue.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment equipment, and more specifically, to a self-cleaning sewage treatment equipment and a method for treating sediment in a sewage treatment pool. Background Art

[0002] Sediments are prone to accumulation in sewage treatment pools, and they are prone to form hardening at the bottom of the pool. If the pool is not cleaned for a long time, it will affect the normal use of the pool. In order to facilitate the accumulation of sediments in one position, the bottom of the sewage pool is often set in an inclined state, so that the sediments can gather near the lowest point of the pool bottom under the action of their own gravity, making it easier to discharge the sediments in a centralized manner.

[0003] However, the effect of the inclined pool bottom structure alone on the aggregation of pool bottom sediments is limited. After long-term use, it is still easy for a layer of sediment to form on the pool bottom. The treatment pool needs to be drained regularly and the pool bottom needs to be cleaned, which is not conducive to the centralized treatment of sediments in sewage.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned problem and provide a self-cleaning sewage treatment equipment, which can clean the bottom of the sewage pool to a certain extent, help to gather sediments at the bottom of the sewage pool, and facilitate centralized discharge and treatment of sediments.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a self-cleaning sewage treatment equipment, including a treatment pool, wherein the left and right sides of the treatment pool are respectively connected with an inlet pipe and an outlet pipe, the inlet pipe is close to the bottom of the treatment pool, and the outlet pipe is close to the top of the treatment pool; a downwardly concave groove is arranged on one side of the pool bottom, and a cleaning roller group for cleaning the bottom surface of the treatment pool is arranged at the bottom of the treatment pool, and the cleaning roller group can be adjusted laterally back and forth in the direction of the groove; the cleaning roller group includes an inner roller body and an outer roller sleeve, the outer roller sleeve is arranged on the outer periphery of the inner roller body, and can realize one-way linkage, and the lower circumferential surface of the outer roller sleeve is pressed against the bottom of the pool; when the cleaning roller group moves toward the direction of the groove, the outer roller sleeve and the inner roller body are relatively stationary, and the lower circumferential surface of the outer roller sleeve and the pool bottom are relatively frictionally slid; when the cleaning roller group moves away from the direction of the groove, the outer roller sleeve and the inner roller body can rotate relative to each other, and the outer roller sleeve and the pool bottom roll relative to each other.

[0007] The present invention is further configured such that the pool bottom is inclined and tilted toward the groove; a mud discharge pipe is connected to the bottom of the groove.

[0008] The present invention is further configured such that a slide rail is provided on the upper portion of the pool body, the direction of the slide rail is consistent with the sliding direction of the cleaning roller group, a reciprocating sliding seat is provided on the slide rail, the lower portion of the slide seat is connected to a frame, and the cleaning roller group is installed at the lower end of the frame.

[0009] The present invention is further configured as follows: a fixing rod is fixedly connected to the bottom of the frame, and the end of the fixing rod is rotatably connected to the end of the inner roller body through a connecting shaft 1; a connecting rod is arranged at the upper position of the fixing rod, and the end of the connecting rod is rotatably connected to the end of the inner roller body through a connecting shaft 2; the connecting shaft 1 and the connecting shaft are both located at the eccentric position of the inner roller body, and the connecting shaft 2 is located on the upper side of the connecting shaft 1.

[0010] The present invention is further configured as follows: a slidable and adjustable sleeve is sleeved on the connecting rod, the sleeve is rotatably connected to the frame through connecting shaft three, a stopper is fixed on the connecting rod corresponding to the position of the sleeve and connecting shaft two, a spring is elastically pressed between the stopper and the sleeve; one end of the connecting rod passing through the sleeve is threadedly connected with a nut.

[0011] The present invention is further configured such that the outer roller sleeve is a cylindrical structure, a partition is fixed in the middle of the outer roller sleeve, and the inner cavity of the outer roller sleeve is divided into two installation cavities; the inner roller body is divided into two, and the two inner roller bodies are respectively arranged in the installation cavities. The two inner roller bodies are fixedly connected by a support shaft, the support shaft passes through the partition, and is rotatably supported by a bearing; the inner roller body and the outer roller sleeve are rotatably connected by the support shaft.

[0012] The present invention is further configured such that one-way linkage is achieved between the inner roller body and the outer roller sleeve through a ratchet mechanism, and the partition is fixedly provided with a linkage sleeve in the direction of the two installation cavities, and the linkage sleeve is coaxially sleeved on the outer periphery of the support shaft; a linkage disk is fixedly installed on the support shaft corresponding to the inner periphery of the linkage sleeve; an annular gap is formed between the linkage disk and the linkage sleeve; ratchet teeth 1 distributed in a circular array are fixed on the inner periphery of the linkage sleeve, and ratchet teeth 2 distributed in a circular array are fixed on the outer periphery of the linkage disk, and ratchet teeth 1 and ratchet teeth 2 are adapted to each other to achieve one-way linkage.

[0013] When ratchet one and ratchet two have a positive rotation tendency, the two raised planes of ratchet one and ratchet two press against each other, and the pressing makes ratchet one and ratchet two remain in a fixed state, thereby keeping the inner roller body and the outer roller sleeve in a stationary state; when ratchet one and ratchet two have a reverse rotation tendency, one side of the inclined surface of ratchet one and ratchet two press against each other, ratchet two is elastic, and the upper tip of ratchet two is subjected to pressure, which will produce downward elastic deformation, thereby allowing ratchet one and ratchet two to produce reverse rotational motion, thereby realizing the rotation of the inner roller body and the outer roller sleeve.

[0014] The present invention is further configured such that a connecting disk is connected to the end of the inner roller body facing away from the partition, an annular groove is formed on the outer periphery of the connecting disk, a connecting ring is fixed to the inner periphery of the outer roller sleeve at a position corresponding to the annular groove, the connecting ring is embedded in the annular groove, and sealing can be achieved by a rotating seal; a limiting ring is fixedly connected to the outer periphery of the outward end of the connecting disk.

[0015] The present invention is further configured as follows: the support shaft is a hollow structure, the two ends of the support shaft respectively extend to the connecting plate, and the end of the support shaft is connected to the external air inlet pipe through a connecting joint; the support shaft is provided with a plurality of through holes corresponding to the position of the installation cavity; the upper side circumference of the inner roller body is provided with a plurality of air outlet holes; and the side circumference of the outer roller sleeve is provided with a plurality of aeration holes.

[0016] The present invention is further configured such that the outer circumferential surface of the outer roller sleeve is in an eccentric structure, with a small diameter portion on one side and a large diameter portion on the other side, and an arc transition between the large diameter portion and the small diameter portion; the aeration holes are located at the small diameter portion of the outer roller sleeve.

[0017] The present invention is further configured such that a sealing gasket is connected to the lower circumferential surface of the inner roller body, and when one side of the aeration hole of the outer roller sleeve rotates downward, the sealing gasket abuts against the inner side of the outer roller sleeve to seal and cover the aeration hole.

[0018] The present invention is further configured such that an elastic sheet is installed in the middle air outlet of the upper part, and the elastic sheet can float elastically up and down under the influence of air pressure; a plurality of bristles are arranged on the side of the elastic sheet facing the outer roller sleeve, and the bristles are against the inner wall of the outer roller sleeve to clean the aeration holes on the outer roller sleeve.

[0019] The present invention also provides a method for treating sediment in a sewage treatment pool, using the above-mentioned sewage treatment equipment to treat sewage, the surface of the pool bottom can be cleaned through the lower side of the cleaning roller group, and the sediment can be pushed toward the groove, thereby achieving the effect of sediment aggregation.

[0020] In summary, the present invention has the following beneficial effects:

[0021] The bottom structure of the treatment pool is set in an inclined structure, and a groove is set at the lowest side of the treatment pool, which can guide the sediment at the bottom of the pool. Under the action of gravity, it can be deposited at a lower inclined position and fall into the groove as much as possible, so that particles can be deposited in the groove. A mud discharge pipe, a pump body and a valve are installed at the lower part of the groove to discharge the mud residue in a centralized manner, which is convenient for cleaning the treatment pool.

[0022] A cleaning roller group is installed at the bottom of the treatment pool, and the sediments on the pool bottom can be cleaned centrally through the cleaning roller group; and an inner and outer double-layer structure is arranged inside the cleaning roller group. Through the one-way linkage between the two, different relative movements with the pool bottom can be generated during the reciprocating movement, thereby maintaining a greater cleaning force toward the groove direction and reducing the cleaning force in the direction away from the groove, thus achieving a state close to one-way cleaning to a certain extent, which helps to concentrate the one-way cleaning toward one side of the pool bottom, i.e., in the direction of the groove, and is beneficial to the centralized discharge treatment of the sediments on the pool bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a self-cleaning sewage treatment equipment of the present invention;

[0024] Figure 2 It is a schematic diagram of the connection structure between the cleaning roller group and the frame of the present invention;

[0025] Figure 3 It is a schematic diagram of the internal structure of the cleaning roller assembly of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the ratchet mechanism of the present invention;

[0027] Figure 5 It is a schematic structural diagram of the inner roller body and the outer roller sleeve of the cleaning roller group of the present invention;

[0028] Figure 6 Another schematic diagram of the internal structure of the cleaning roller assembly of the present invention;

[0029] Figure 7 Another structural schematic diagram of the inner roller body and the outer roller sleeve of the cleaning roller set of the present invention;

[0030] Figure 8 It is a schematic diagram of the structure of the bristles of the present invention.

[0031] Figure numerals: 1, treatment tank; 2, slide rail; 3, slide seat; 4, frame; 5, cleaning roller group; 6, tank bottom; 7, groove; 8, mud discharge pipe; 9, pump body; 10, water inlet pipe; 11, water outlet pipe; 41, fixing rod; 42, connecting shaft 1; 43, connecting rod; 44, connecting shaft 2; 45, sliding sleeve; 46, connecting shaft 3; 47, nut; 48, stopper; 49, spring; 51, outer roller sleeve; 511, small diameter portion; 512, large diameter portion; 513, brush layer; 514, aeration hole; 52, inner roller body; 5 21. Connecting disk; 522. Ring groove; 523. Limiting ring; 524. Air outlet; 525. Rotating sleeve; 53. Partition plate; 54. Mounting chamber; 55. Connecting ring; 551. Rotating seal; 56. Ratchet mechanism; 561. Linking sleeve; 562. Linking disk; 563. Annular gap; 564. Ratchet one; 565. Ratchet two; 57. Support shaft; 571. Connecting joint; 572. Inlet pipe; 573. Through hole; 574. Bearing; 58. Sealing pad; 59. Elastic sheet; 591. Bristles. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1

[0034] This embodiment discloses a self-cleaning sewage treatment device, such as Figure 1 As shown, it includes a treatment pool 1, and an inlet pipe 10 and an outlet pipe 11 are connected to the left and right sides of the treatment pool 1, respectively. The inlet pipe 10 is close to the bottom of the treatment pool 1, and the outlet pipe 11 is close to the top of the treatment pool 1; the sewage input from the inlet pipe 10 is deposited at the bottom 6 of the pool through heavier particles, and the lighter scum will float to the surface of the treatment pool 1, forming a separation of some particles in the sewage. Through the outlet pipe 11 on the treatment pool 1, the relatively clean middle layer water in the treatment pool 1 can be discharged, thereby achieving sewage treatment.

[0035] During the treatment process, treatment agents can also be added to the sewage according to the type of sewage and treatment requirements to facilitate the aggregation and treatment of particulate matter in the sewage.

[0036] A groove 7 is formed on one side of the pool bottom 6. Moreover, the pool bottom 6 of the treatment pool 1 is inclined and inclined toward the groove 7, and the groove 7 is located at the lowest position of the treatment pool 1. The sediment on the pool bottom 6 of the treatment pool 1 can be deposited at a downwardly inclined position under the action of gravity, and fall into the position in the groove 7 as much as possible, so that the particles are deposited in the groove 7. A mud discharge pipe 8 is connected to the bottom of the groove 7, and a pump body 9 and a valve are installed on the mud discharge pipe 8, which can discharge the mud residue at the bottom of the groove 7, so as to facilitate the cleaning of the treatment pool 1.

[0037] In order to clean the sediment on the pool bottom 6, a cleaning device can be installed on the pool bottom 6 to clean the surface sediment on the pool bottom 6. The reciprocating movement of the cleaning component can sweep the sediment off the surface of the pool bottom 6 to avoid the adverse situation of long-term accumulation and hardening. However, if traditional cleaning equipment is used, the cleaning method is reciprocating. During the cleaning process, the cleaning component will sweep the sediment on the pool bottom 6 in both directions, that is, Figure 1 The left and right sides of the tank cannot sweep the sediment to one side for gathering, which is not conducive to the discharge of sediment through the centralized slag discharge pipe. Moreover, it is not suitable for the inclined pool bottom 6 environment. During the cleaning process, when cleaning in the upward direction, the sediment will be swept and pushed in the upward direction, which is incompatible with the structure of the inclined bottom surface guiding the sediment downward. Therefore, the structure of the cleaning component can be further optimized and improved to further improve the cleaning effect of the sediment on the pool bottom 6.

[0038] In order to facilitate the cleaning of the bottom of the treatment pool 1, a cleaning roller set 5 can be arranged at the bottom of the treatment pool 1, and the sediment on the pool bottom 6 can be cleaned by the cleaning roller set 5. The cleaning roller set 5 can be adjusted to reciprocate laterally in the direction of the groove 7. Under the action of the cleaning roller set 5, the sediment on the bottom can be pushed to move in the direction of the groove 7, thereby achieving the cleaning of the pool bottom 6 and accelerating the sediment to gather in the direction of the groove 7, which is beneficial to sewage treatment.

[0039] like Figure 2 As shown, the cleaning roller set 5 includes an inner roller body 52 and an outer roller sleeve 51. The outer roller sleeve 51 is sleeved on the outer periphery of the inner roller body and can realize one-way linkage. The lower peripheral surface of the outer roller sleeve 51 presses against the pool bottom 6. When the cleaning roller set 5 moves toward the groove 7, the outer roller sleeve 51 and the inner roller body 52 are relatively stationary, and the lower peripheral surface of the outer roller sleeve 51 and the pool bottom 6 slide relative to each other by friction; the lower side of the outer roller sleeve 51 can clean the surface of the pool bottom 6 and push the sediment toward the groove 7, so as to achieve the effect of sediment aggregation.

[0040] Method for processing sediments: When the cleaning roller set 5 moves in the direction away from the groove 7, the outer roller sleeve 51 and the inner roller body 52 can rotate relatively. In the process of the outer roller sleeve 51 following the roller body to move horizontally, the outer roller sleeve 51 and the pool bottom 6 roll relatively. The friction effect of rolling on the pool bottom 6 is relatively low. The outer roller sleeve 51 will roll on the upper layer of the sediment, so that the cleaning roller body can roll back in the direction away from the groove 7, avoiding pushing the sediment in the opposite direction of the groove 7. In the process of reciprocating horizontal movement, the cleaning roller set 5 can concentrate on cleaning the sediment, thereby realizing the sediment gathering in the direction of the groove 7.

[0041] Furthermore, in order to improve the cleaning effect of the outer roller sleeve 51 on the surface sediment of the pool bottom 6, a brush layer 513 may be provided on the outer layer of the outer roller sleeve 51, and a layer of bristles 591 may be formed on the surface of the outer roller sleeve 51, which may be provided by bonding or other means. The bristles 591 may increase the cleaning effect between the surface of the outer roller sleeve 51 and the pool bottom 6, thereby improving the cleaning effect of the cleaning roller set 5 on the pool bottom 6. Alternatively, a clean surface cloth may be compounded on the outer layer of the outer roller sleeve 51 to replace the brush layer 513, and the clean surface cloth may also improve the cleaning effect of the outer roller sleeve 51 on the pool bottom 6 to a certain extent.

[0042] like Figure 1 As shown, the cleaning roller set 5 is reciprocatingly guided by the slide rail 2. The slide rail 2 is installed on the upper part of the pool body, and the direction of the slide rail 2 is consistent with the sliding direction of the cleaning roller set 5. If the pool bottom 6 is a planar structure, the slide rail 2 can be set to a horizontal structure; if the pool bottom 6 is an inclined structure, the slide rail 2 can be set to a cleaning structure consistent with the pool bottom 6, and remain parallel to the pool bottom 6, so that when the cleaning roller set 5 moves horizontally, the outer roller sleeve 51 can maintain a stable pressing state with the pool bottom 6.

[0043] A reciprocating slide 3 is installed on the slide rail 2, and the slide 3 is driven by a driver; a frame 4 is connected to the lower part of the slide 3, and a cleaning roller group 5 is installed at the lower end of the frame 4 to support the cleaning roller group 5 and drive the cleaning roller group 5 reciprocatingly.

[0044] like Figure 1 , 3 As shown, the outer roller sleeve 51 is a cylindrical structure, and a partition 53 is fixed in the middle of the outer roller sleeve 51, and the partition 53 divides the inner cavity of the outer roller sleeve 51 into two left and right installation cavities 54. The inner roller body 52 is divided into two, and the two inner roller bodies 52 are respectively arranged in the installation cavities 54 on both sides. The two inner roller bodies 52 are fixedly connected by a support shaft 57, and the two ends of the support shaft 57 extend to the end position of the inner roller body 52, connecting and fixing the two inner roller bodies 52, and the two inner roller bodies 52 and the support shaft 57 can realize synchronous rotation.

[0045] An axial hole is provided in the middle of the partition plate 53, and the support shaft 57 passes through the axial hole. A bearing 574 is installed between the axial hole and the support shaft 57, and rotation support is achieved through the bearing 574. Thus, stable rotation between the inner roller body 52 and the outer roller sleeve 51 can be achieved.

[0046] When the outer roller sleeve 51 rotates around the inner roller body 52, one side rotates and the other side rotates, and the outer roller sleeve 51 rotates. Specifically, the inner roller body 52 and the outer roller sleeve 51 are unidirectionally linked by a ratchet mechanism 56.

[0047] like Figure 3 , 4 As shown, a linkage sleeve 561 is fixedly installed on the partition 53 in the direction toward the two installation cavities 54, and the linkage sleeve 561 is coaxially sleeved on the outer peripheral position of the support shaft 57. A linkage disk 562 is fixedly installed on the support shaft 57 corresponding to the inner peripheral position of the linkage sleeve 561, and an annular gap 563 is formed between the linkage disk 562 and the linkage sleeve 561, and the ratchet mechanism 56 is installed in the annular gap 563. Ratchet teeth 1 564 distributed in an annular array are fixed to the inner periphery of the linkage sleeve 561, and ratchet teeth 2 565 distributed in an annular array are fixed to the outer periphery of the linkage disk 562. Ratchet teeth 1 564 and ratchet teeth 2 565 are adapted to each other to achieve one-way linkage. Figure 4 As shown, the shape of ratchet tooth 1 564 is a triangular structure, one side is a plane, and the other side is an inclined surface; ratchet tooth 2 565 is an inclined structure, and gradually becomes smaller from the root of the tooth upwards, forming an elastically deformable structure, and the inclination directions of ratchet tooth 1 564 and ratchet tooth 2 565 are adapted to each other.

[0048] When both ratchet 1 564 and ratchet 2 565 generate a positive rotation trend, such as Figure 4 As shown, the outer roller sleeve 51 rotates clockwise, and the two raised planes of the ratchet 1 564 and the ratchet 2 565 press against each other, and the ratchet 1 564 and the ratchet 2 565 are kept in a fixed state by pressing against each other, thereby keeping the inner roller body 52 and the outer roller sleeve 51 in a stationary state. During the movement, the lower surface of the outer roller sleeve 51 can produce a state of mutual pressing and friction with the surface of the pool bottom 6, and the pool bottom 6 can be frictionally cleaned by sliding friction.

[0049] When the ratchet 1 564 and the ratchet 2 565 both have a reverse rotation tendency, such as Figure 4As shown, the outer roller sleeve 51 tends to rotate counterclockwise, and the inclined surfaces of the first ratchet 564 and the second ratchet 565 are pressed against each other. The second ratchet 565 is elastic, and the upper tip of the second ratchet 565 is subjected to pressure, which will produce downward elastic deformation, thereby allowing the first ratchet 564 and the second ratchet 565 to produce reverse rotational motion, thereby realizing the rotation of the inner roller body 52 and the outer roller sleeve 51. During the rotation of the outer roller sleeve 51, it rolls relative to the pool bottom 6, and the friction effect of the rolling on the pool bottom 6 is relatively low, thereby realizing the movement and reset of the cleaning roller body, and preparing for the next cleaning action.

[0050] In order to maintain the pressure between the outer roller sleeve 51 and the ground, the outer roller sleeve 51 can adopt an eccentrically adjustable structure. Figure 2 As shown, a fixing rod 41 is fixedly connected to the bottom of the frame 4, and the end of the fixing rod 41 is rotatably connected to the end of the inner roller body 52 through a connecting shaft 1 42. The connecting shaft 1 42 is located at an eccentric position of the inner roller body 52, and is located at a lower position of the center. By rotating around the connecting shaft 1 42, the eccentric adjustment of the cleaning wheel group can be achieved, and then the height of the lowest position of the cleaning wheel group can be adjusted, and then the pressure between the outer roller sleeve 51 and the pool bottom 6 can be adjusted, and then the cleaning force can be adaptively adjusted to form a variety of different cleaning requirements.

[0051] Specifically, a connecting rod 43 is installed on the upper side of the fixed rod 41, and the right end of the connecting rod 43 is rotatably connected to the end of the inner roller body 52 through the connecting shaft 2 44. The connecting shaft 1 42 and the connecting shaft are both located at the eccentric position of the inner roller body 52, and the connecting shaft 2 44 is located on the upper side of the connecting shaft 1 42. By adjusting the connecting rod 43 laterally, the eccentricity of the outer roller sleeve 51 can be adjusted, and the pressure between the outer roller sleeve 51 and the pool bottom 6 can be adjusted to meet different cleaning requirements.

[0052] A sliding sleeve 45 is sleeved on the left side of the connecting rod 43, and a sliding adjustment action can be achieved between the sliding sleeve 45 and the connecting rod 43, and the connecting rod 43 can be telescopically adjusted along the sliding sleeve 45. Moreover, the sliding sleeve 45 is rotatably connected to the frame 4 through a connecting shaft 3 46 at the middle position of the outer side, and the sliding sleeve 45 can be swung and adjusted, thereby adapting to the lateral adjustment action of the connecting rod 43.

[0053] A nut 47 is threadedly connected at one end of the connecting rod 43 passing through the sliding sleeve 45, i.e., at the left end, and the sliding adjustment limit can be achieved through the nut 47. A stopper 48 is fixed at the connecting rod 43 corresponding to the position of the sliding sleeve 45 and the connecting shaft 2 44, and a spring 49 is elastically pressed between the stopper 48 and the sliding sleeve 45, and the spring 49 is sleeved on the connecting rod 43 to maintain the elastic stability of the spring 49. Through the pressure of the spring 49, the cleaning roller body can be swung downward toward the pool bottom 6 for cleaning, and the pressure on the outer periphery of the cleaning roller body is maintained to maintain a certain cleaning force on the pool bottom 6. In addition, through the elastic expansion and contraction of the spring 49, the cleaning roller body can float up and down to a certain extent, thereby maintaining the stability between the cleaning roller body and the pool bottom 6.

[0054] By means of the threaded adjustment nut 47 , the position between the connecting rod 43 and the sliding sleeve 45 can be adjusted, and the compression degree of the spring 49 can be adjusted, thereby achieving adjustment under different pressure conditions.

[0055] This embodiment also discloses a self-cleaning sewage treatment equipment, which can further optimize the sedimentation sewage treatment equipment on the basis of the above sewage treatment equipment, so that the cleaning roller group 5 can not only clean the pool bottom 6, but also produce an aeration effect, and tiny bubbles can be generated at the bottom of the treatment pool 1 by introducing gas. Under the action of the bubbles, the lighter particles in the sewage can be driven to float upward, forming scum on the upper layer of the sewage pool, and the scum and sedimentation scum can be separated, so as to achieve the separation of particles in the sewage and improve the sewage treatment effect.

[0056] like Figure 3 , 5 As shown, a connecting plate 521 is connected to one end of the inner roller body 52 facing away from the partition 53, and the connecting plate 521 is an integral structure with the inner roller body 52. ​​An annular groove 522 is formed on the outer periphery of the connecting plate 521, and a connecting ring 55 is fixed at a position corresponding to the annular groove 522 on the inner periphery of the outer roller sleeve 51. The connecting ring 55 is embedded in the annular groove 522, which can realize the axial limiting effect on the connecting plate 521 and the inner roller body 52, so that the inner roller body 52 and the outer roller sleeve 51 can maintain stable rotation. In addition, a rotating seal 551 is installed between the inner circumferential surface of the annular groove 522 and the connecting ring 55, and sealing can be achieved through the rotating seal 551, thereby maintaining the sealing between the inner roller body 52 and the outer roller sleeve 51, and aeration can be achieved inside the cleaning roller body. A limiting ring 523 is fixedly connected to the outer periphery of one end of the connecting plate 521 facing outward, and the limiting ring 523 can limit the connecting ring 55 and the rotating seal 551, so as to maintain the structural stability between the two.

[0057] The support shaft 57 is a hollow structure and a hard air guide pipe. Both ends of the support shaft 57 extend to the connection plate 521 respectively, and the end of the support shaft 57 is connected to the external air inlet pipe 572 through the connection joint 571, so that gas can be supplied from the outside of the connection plate 521 to the inside of the inner roller body 52. ​​The air inlet pipe 572 can be a hose and connected to an external air source, so that aeration gas can be introduced into the cleaning roller group 5.

[0058] A plurality of through holes 573 are provided at the position of the support shaft 57 corresponding to the mounting cavity 54, so that the gas of the support shaft 57 can flow into the inner roller body 52; and a plurality of air outlet holes 524 are provided at the upper peripheral surface of the inner roller body 52, through which the inner cavity of the inner roller body 52 and the outer roller sleeve 51 can be connected, so that the gas can flow into the gap between the inner roller body 52 and the outer roller sleeve 51. A plurality of aeration holes 514 are provided at the peripheral surface of one side of the outer roller sleeve 51, through which tiny bubbles can be ejected outward, thereby forming an aeration structure near the bottom 6 of the pool, thereby causing the scum in the sewage to gather upward.

[0059] like Figure 5 As shown, the outer peripheral surface of the outer roller sleeve 51 is in an eccentric structure, with a small diameter portion 511 on one side and a large diameter portion 512 on the other side. The outer roller sleeve 51 is in a completely circular shape as a whole, with an arc transition between the large diameter portion 512 and the small diameter portion 511. When the cleaning roller assembly 5 moves from left to right, the large diameter portion 512 of the outer roller sleeve 51 is set downward. Since the outer diameter of the large diameter portion 512 is larger, it forms a convex state, which can increase the pressure between the outer roller sleeve 51 and the bottom surface, thereby increasing the cleaning pressure between the outer roller sleeve 51 and the bottom surface, and forming a stronger cleaning effect through greater friction.

[0060] When the cleaning roller set 5 moves from right to left, the outer roller sleeve 51 and the bottom surface are in a state of rolling with each other, which mainly plays the role of rolling and resetting the outer roller sleeve 51 to the left. In addition, the outer roller body will rotate half a circle, and the radial size of the outer roller body will gradually decrease, which can appropriately reduce the pressing pressure between the cleaning roller set 5 and the pool bottom 6, and avoid pushing the sediment on the pool bottom 6 in the opposite direction. In addition, when the cleaning roller set 5 moves to the leftmost position, the outer roller sleeve 51 of the cleaning roller set 5 rotates exactly one circle, so that the large diameter part 512 of the outer roller sleeve 51 faces downward, and then the stable cleaning pressure between the outer roller sleeve 51 and the pool bottom 6 can be maintained during the subsequent pushing process.

[0061] Furthermore, the aeration hole 514 is located at the small diameter portion 511 of the outer roller sleeve 51. During the rotation of the outer roller sleeve 51, the circumferential position of the aeration hole 514 will undergo a rotational change, and can be adjusted to different aeration outlet positions, and can produce different aeration effects at the lower side of the treatment pool 1, and can adapt to different aeration requirements. Moreover, when the aeration hole 514 is located at the lower side, the aeration bubbles can be sprayed at the bottom 6 of the pool, and a better cleaning and aggregation effect of the scum can be achieved. For aeration, the opening and closing control can be performed according to the actual aeration needs, and the opening and closing of the air inlet pipe 572 can be adjusted, so as to avoid excessive aeration at the bottom 6 of the pool after the sediment is deposited, resulting in the upward precipitation.

[0062] Embodiment 2

[0063] This embodiment discloses a self-cleaning sewage treatment equipment, which can further optimize the sedimentation sewage treatment equipment based on the above embodiment, and refer to Figure 6 , 7 Provide detailed explanation.

[0064] A sealing gasket 58 is connected to the lower circumferential surface of the inner roller body 52 , and the sealing gasket 58 can perform a sealing function at the gap between the inner roller body 52 and the outer roller sleeve 51 .

[0065] The outer roller sleeve 51 rotates on the outer periphery of the inner roller body 52. ​​When the side of the outer roller sleeve 51 with the aeration hole 514 rotates downward, Figure 7 In the state of the middle, the sealing gasket 58 abuts against the inner side of the outer roller sleeve 51, and the aeration hole 514 can be sealed and covered by the sealing gasket 58. Then, the aeration hole 514 is aerated only in the upward direction, on the one hand, it is prevented that the downward aeration affects the sediments and causes the sediments to rise; on the other hand, the sealing gasket 58 can shield the aeration hole 514 when it is facing downward, which can reduce the influence of the sediments on the pool bottom 6 on the aeration hole 514, and can protect the aeration hole 514, and reduce the influence of the aeration hole 514 being blocked by the sediments.

[0066] like Figure 8 As shown, an elastic sheet 59 may be installed in the air outlet 524 at the middle position of the upper part, and a plurality of bristles 591 may be installed on the side of the elastic sheet 59 facing the outer roller sleeve 51, that is, the upward position. The bristles 591 may abut against the inner wall of the upper side of the outer roller sleeve 51, and when the aeration holes 514 of the outer roller sleeve 51 bypass the upper side of the bristles 591, the bristles 591 may clean the aeration holes 514 on the outer roller sleeve 51, reduce the blockage of the aeration holes 514, play a dredging effect, and maintain the stability of the aeration effect.

[0067] The elastic sheet 59 is a rubber sheet with a certain elasticity, which can maintain a certain cleaning pressure between the bristles 591 and the inner periphery of the outer roller sleeve 51, thereby cleaning the inner side of the aeration hole 514. Moreover, when the air pressure in the inner cavity of the inner roller body 52 changes, the elastic sheet 59 can form a certain upward and downward elastic floating, thereby effectively cleaning the inner side of the aeration hole 514.

[0068] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A self-cleaning sewage treatment device, comprising a treatment tank (1), wherein the left and right sides of the treatment tank (1) are respectively connected with an inlet pipe (10) and an outlet pipe (11), wherein the inlet pipe (10) is close to the bottom of the treatment tank (1), and the outlet pipe (11) is close to the top of the treatment tank (1); characterized in that: A groove (7) sunken downward is provided on one side of the pool bottom (6); a cleaning roller group (5) for cleaning the bottom surface of the pool (1) is provided at the bottom of the treatment pool (1); the cleaning roller group (5) can be adjusted to reciprocate laterally in the direction of the groove (7); the cleaning roller group (5) comprises an inner roller body (52) and an outer roller sleeve (51); the outer roller sleeve (51) is sleeved on the outer periphery of the inner roller body and can realize one-way linkage; the lower peripheral surface of the outer roller sleeve (51) and the pool bottom (6) are pressed against each other; when the cleaning roller group (5) moves in the direction of the groove (7), the outer roller sleeve (51) and the inner roller body (52) are relatively stationary, and the lower peripheral surface of the outer roller sleeve (51) and the pool bottom (6) are frictionally slid relative to each other; when the cleaning roller group (5) moves in the direction away from the groove (7), the outer roller sleeve (51) and the inner roller body (52) can rotate relative to each other, and the outer roller sleeve (51) and the pool bottom (6) roll relative to each other.

2. A self-cleaning sewage treatment equipment according to claim 1, characterized in that: The pool bottom (6) is inclined and is inclined toward the groove (7); the bottom of the groove (7) is connected to a mud discharge pipe (8).

3. A self-cleaning sewage treatment equipment according to claim 1, characterized in that: A slide rail (2) is arranged on the upper part of the pool body, the direction of the slide rail (2) is consistent with the sliding direction of the cleaning roller group (5), a slide seat (3) that can slide back and forth is arranged on the slide rail (2), the lower part of the slide seat (3) is connected to a frame (4), and the cleaning roller group (5) is installed at the lower end of the frame (4).

4. A self-cleaning sewage treatment equipment according to claim 3, characterized in that: A fixing rod (41) is fixedly connected to the bottom of the frame (4), and the end of the fixing rod (41) is rotatably connected to the end of the inner roller body (52) via a connecting shaft 1 (42); a connecting rod (43) is arranged at the upper side of the fixing rod (41), and the end of the connecting rod (43) is rotatably connected to the end of the inner roller body (52) via a connecting shaft 2 (44); the connecting shaft 1 (42) and the connecting shaft are both located at an eccentric position of the inner roller body (52), and the connecting shaft 2 (44) is located on the upper side of the connecting shaft 1 (42).

5. A self-cleaning sewage treatment equipment according to claim 4, characterized in that: The connecting rod (43) is provided with a sliding sleeve (45) which can be slidably adjusted. The sliding sleeve (45) is rotatably connected to the frame (4) through a connecting shaft (46). A stopper (48) is fixed on the connecting rod (43) corresponding to the position of the sliding sleeve (45) and the connecting shaft (44). A spring (49) is elastically pressed between the stopper (48) and the sliding sleeve (45). One end of the connecting rod (43) passing through the sliding sleeve (45) is threadedly connected with a nut (47).

6. A self-cleaning sewage treatment equipment according to claim 1, characterized in that: The outer roller sleeve (51) is in a cylindrical structure. A partition (53) is fixed in the middle of the outer roller sleeve (51) to divide the inner cavity of the outer roller sleeve (51) into two installation cavities (54). The inner roller body (52) is divided into two. The two inner roller bodies (52) are respectively arranged in the installation cavities (54). The two inner roller bodies (52) are fixedly connected via a support shaft (57). The support shaft (57) passes through the partition (53) and is rotatably supported by a bearing (574). The inner roller body (52) and the outer roller sleeve (51) are rotatably connected via the support shaft (57).

7. A self-cleaning sewage treatment equipment according to claim 6, characterized in that: The inner roller body (52) and the outer roller sleeve (51) are linked in one direction via a ratchet mechanism (56); the partition plate (53) is fixedly provided with a linkage sleeve (561) in the direction facing the two installation cavities (54); the linkage sleeve (561) is coaxially sleeved on the outer periphery of the support shaft (57); a linkage disk (562) is fixedly provided on the support shaft (57) at a position corresponding to the inner periphery of the linkage sleeve (561); an annular gap (563) is formed between the linkage disk (562) and the linkage sleeve (561); ratchet teeth 1 (564) distributed in an annular array are fixed on the inner periphery of the linkage sleeve (561); ratchet teeth 2 (565) distributed in an annular array are fixed on the outer periphery of the linkage disk (562); the ratchet teeth 1 (564) and the ratchet teeth 2 (565) are adapted to each other to achieve one-way linkage.

8. The self-cleaning sewage treatment equipment according to claim 6, characterized in that: One end of the inner roller body (52) facing away from the partition plate (53) is connected to a connecting disk (521), an annular groove (522) is formed on the outer periphery of the connecting disk (521), a connecting ring (55) is fixed at a position corresponding to the annular groove (522) on the inner periphery of the outer roller sleeve (51), the connecting ring (55) is embedded in the annular groove (522), and sealing can be achieved by a rotating sealing member (551); the outer periphery of the outward end of the connecting disk (521) is fixedly connected to a limiting ring (523).

9. A self-cleaning sewage treatment equipment according to claim 8, characterized in that: The support shaft (57) is a hollow structure, and both ends of the support shaft (57) extend to the connection plate (521) respectively. The end of the support shaft (57) is connected to an external air inlet pipe (572) through a connection joint (571); the support shaft (57) is provided with a plurality of through holes (573) at positions corresponding to the installation cavity (54); the upper circumferential surface of the inner roller body (52) is provided with a plurality of air outlet holes (524); and the circumferential surface of one side of the outer roller sleeve (51) is provided with a plurality of aeration holes (514).

10. A self-cleaning sewage treatment equipment according to claim 9, characterized in that: The outer peripheral surface of the outer roller sleeve (51) is in an eccentric structure, with one side being a small diameter portion (511) and the other side being a large diameter portion (512), and a circular arc transition between the large diameter portion (512) and the small diameter portion (511); the aeration hole (514) is located at the small diameter portion (511) of the outer roller sleeve (51); A sealing gasket (58) is connected to the lower peripheral surface of the inner roller body (52), and when one side of the aeration hole (514) of the outer roller sleeve (51) rotates downward, the sealing gasket (58) abuts against the inner side of the outer roller sleeve (51) to seal and cover the aeration hole (514).

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