Sewer pipe dredging device and sewage treatment system

Abstract

The invention relates to the technical field of sewage treatment, in particular to a sewer pipe dredging device and a sewage treatment system.The sewer pipe dredging device comprises a basic shaft installed between two transverse pipes arranged side by side, a warping plate is installed on the basic shaft in a rotating mode, and the two ends of the warping plate are each provided with a water receiving groove capable of receiving sewage flowing out of the corresponding transverse pipe; the groove length directions of the two water receiving grooves are parallel to the axial direction of the corresponding transverse pipes, the ends, close to the transverse pipes, of the two water receiving grooves are water outlet ends used for enabling sewage received in the water receiving grooves to flow out, and the other ends of the two water receiving grooves are water blocking ends used for blocking the sewage flowing down from the transverse pipes. The two water receiving grooves can alternately swing up and down under the impact action of sewage alternately flowing out of the two transverse pipes, cleaning rods inserted into the corresponding transverse pipes are arranged on the two water receiving grooves, and the two cleaning rods can perform flapping action of flapping the inner bottom surfaces of the corresponding transverse pipes along with the up-down alternate swing of the two water receiving grooves. According to the invention, accumulation of solids in the horizontal pipe of the L-shaped sewer pipe can be effectively avoided, the period of manual cleaning is prolonged, and the cleaning cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to a sewer pipe dredging device and a sewage treatment system. Background Art

[0002] As a key equipment for sewage treatment, sewer pipes are prone to blockage due to accumulation of solid matter during daily use, causing them to lose their drainage function. Therefore, they need to be cleaned regularly to avoid blockage as much as possible.

[0003] In daily life, the most commonly used are kitchen sewage pipes and bathroom sewage pipes. In cities, due to the high buildings and large number of residents, it is usually necessary to use branch pipes to converge into a main pipe for sewage discharge, collection and treatment. In some remote areas or rural areas, there are usually one or two-story buildings and the residents are more dispersed. Therefore, each household usually uses L-shaped sewer pipes arranged side by side to discharge kitchen sewage and bathroom sewage, and uses buckets or dug pits to collect sewage for subsequent reuse.

[0004] During the sewage discharge process, the sewage flows along the vertical pipe of the L-shaped sewer pipe to the horizontal pipe, and then flows into the sewage treatment point through the horizontal pipe. Since the wall of the vertical pipe is relatively smooth, and the adhesion force between the solids and the pipe wall is much smaller than the sum of their own gravity and the thrust of the water flow, it is difficult for them to adhere to the vertical pipe. For the horizontal pipe, although its wall is also relatively smooth, the solids lose the driving force of gravity at this time. On the contrary, gravity is converted into friction between the solids and the pipe wall, which hinders the movement of the solids. As the thrust of the water flow decreases, the friction force on the solids is greater than the thrust of the water flow, and some solids will remain in the horizontal pipe at this time. As time goes by, in the absence of water flow in the horizontal pipe, the water on the surface of the solids evaporates, so they stick to the horizontal pipe, causing the lower surface of the pipe wall in the horizontal pipe to become rough, so that when the sewage is discharged next time, it can provide greater friction resistance, causing more solids to accumulate and stick in the horizontal pipe. In the long run, the flow of the sewer pipe will eventually decrease, or even become blocked, and manual cleaning will be required at this time.

[0005] It can be seen that the horizontal pipe of the current L-shaped sewer pipe is prone to solid accumulation during use, and requires regular manual cleaning and dredging, which is time-consuming and labor-intensive, and therefore needs to be solved urgently. Summary of the invention

[0006] In order to avoid and overcome the technical problems existing in the prior art, the present invention provides a sewer pipe dredging device and a sewage treatment system. The present invention can effectively avoid the accumulation of solids in the L-shaped sewer pipe transverse pipe, extend the manual cleaning cycle, and reduce the cleaning cost.

[0007] To achieve the above object, the present invention provides the following technical solutions: A sewer pipe dredging device comprises a base shaft installed between two transverse pipes arranged side by side, the base shaft and the transverse pipes are parallel to each other; a seesaw is rotatably installed on the base shaft, and water receiving grooves capable of receiving sewage flowing out of the corresponding transverse pipes are respectively installed at both ends of the seesaw; the groove length directions of the two water receiving grooves are respectively parallel to the axial directions of the corresponding transverse pipes, and one end of the two water receiving grooves close to the transverse pipe is a water outlet end for the sewage received in the grooves to flow out, and the other end is a water retaining end for blocking the sewage flowing down from the transverse pipe; the two water receiving grooves can swing up and down alternately under the impact of the sewage flowing out alternately from the two transverse pipes, and the two water receiving grooves are both arranged with cleaning rods inserted in the corresponding transverse pipes, and the two cleaning rods can perform a beating action to beat the inner bottom surface of the corresponding transverse pipe as the two water receiving grooves swing up and down alternately.

[0008] As a further solution of the present invention: the cleaning rod is L-shaped, its horizontal rod is inserted in the horizontal pipe, and its vertical rod is inserted in the vertical pipe; a vertically arranged avoidance groove is opened on the inner pipe wall of the vertical pipe close to the water receiving trough, and the vertical rod is slidably inserted in the avoidance groove to avoid the sewage falling in the vertical pipe.

[0009] As a further solution of the present invention: a transverse groove is provided on the inner top surface of the transverse tube for the transverse bar to be embedded in when the transverse bar is at the highest point, and the transverse groove and the avoidance groove are connected to each other to form an L-shaped hidden groove.

[0010] As a further solution of the present invention: the transition point between the vertical rod and the horizontal rod is an arc transition.

[0011] As a further solution of the present invention: a U-shaped plate is clamped at the water outlet end of the water receiving trough, and the cleaning rod is fixedly installed at the highest point of the U-shaped plate.

[0012] As a further solution of the present invention: scrapers that can slide and scrape the groove walls along the length direction of the water receiving grooves are installed in both water receiving grooves; a fixed horizontally arranged reference rod is installed in the middle of the two water receiving grooves, and the length direction of the reference rod is perpendicular to the length direction of the water receiving grooves; the two rod ends of the reference rod are hinged to each other through connecting rods and scrapers close to the corresponding rod ends to form a double-hinged three-bar mechanism; the two scrapers can perform reciprocating scraping action on the water receiving grooves under the traction of the two connecting rods to scrape the water receiving grooves as the two water receiving grooves swing up and down alternately.

[0013] As a further solution of the present invention: both sides of the water receiving trough are formed with inwardly bent curling edges, and the two ends of the arc-shaped scraper fitted in the water receiving trough are respectively abutted against the inner side surfaces of the two curling edges.

[0014] As a further solution of the present invention: the base shaft is fixedly installed on the wall between the two transverse tubes, and the axis of the base shaft is located in the symmetry plane of the two transverse tubes; the reference rod is fixed to the other axial end of the base shaft, and the two cooperate to form a T-shaped rod.

[0015] A sewage treatment system, which uses the above-mentioned sewer pipe dredging device, includes a first treatment tank for purifying toilet sewage and a second treatment tank for purifying kitchen sewage and bathroom sewage at the same time; the water inlet of the first treatment tank is connected to the toilet sewer pipe, and the water outlet of the first treatment tank is connected to the water inlet of the second treatment tank; the water inlet of the second treatment tank is also connected to an L-shaped kitchen sewer pipe and an L-shaped bathroom sewer pipe, and the kitchen sewer pipe and the bathroom sewer pipe are arranged side by side; the sewer pipe dredging device is installed between the kitchen sewer pipe and the bathroom sewer pipe to dredge both of them.

[0016] As a further scheme of the present invention: the first treatment tank includes a first maturation tank, a second maturation tank and a sedimentation tank which are sequentially arranged in a water flow direction; the first maturation tank and the second maturation tank are connected through a first connecting pipe, and the height of the first connecting pipe at the water inlet in the first maturation tank is lower than the height of the first connecting pipe at the water outlet in the second maturation tank; the second maturation tank and the sedimentation tank are connected through a second connecting pipe, and the height of the second connecting pipe at the water inlet in the second maturation tank is lower than the height of the second connecting pipe at the water outlet in the sedimentation tank; the second treatment tank includes a sludge tank and a wetland tank which are sequentially arranged in a water flow direction, and a kitchen drain pipe and a bathroom drain pipe are installed in the sludge tank; the sludge tank and the wetland tank are connected to each other through a U-shaped pipe opening downward; the sedimentation tank is connected to the sludge tank through a third connecting pipe, and a main outlet pipe is installed at the water outlet of the wetland tank.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The sewer pipe unclogging device of the present invention drives the water receiving trough to swing up and down through the impact of sewage, driving the cleaning rod to beat the bottom surface of the horizontal pipe, cleverly using the sewage's own kinetic energy as a power source, without the need for additional energy input, energy-saving and environmentally friendly; the automatic beating action of the cleaning rod can remove solid deposits in the horizontal pipe in real time, avoiding pipe blockage due to impurity deposition, and significantly extending the manual cleaning cycle; reducing the frequency of manual intervention, directly reducing the cleaning costs such as manpower and material resources, while ensuring long-term and efficient drainage of the sewer pipe and improving overall utilization efficiency.

[0018] 2. The cleaning rod is designed to be L-shaped. The horizontal rod is responsible for beating and cleaning the horizontal pipe, and the vertical rod is "peaked" with the sewage in the vertical pipe through the avoidance groove. This ensures that the cleaning rod swings with the water receiving groove to complete the horizontal pipe cleaning task, and the avoidance groove makes room for the sewage falling in the vertical pipe, avoiding the vertical rod from obstructing normal drainage and hanging solid objects in the sewage, so as to achieve non-interference between the "drainage" and "unblocking" processes and make the device more compatible in function.

[0019] 3. The horizontal groove on the top surface of the horizontal pipe is connected to the avoidance groove to form an L-shaped hidden groove. When the horizontal rod of the cleaning rod swings to the highest point with the water receiving groove, it can be embedded in the horizontal groove for storage. This design eliminates the potential obstruction of the cleaning rod to the flow of sewage, that is, in the non-working state, the cleaning rod is completely hidden, and the sewage is not interfered with by the structure when flowing through the horizontal pipe, ensuring that the drainage path is unobstructed, optimizing the space utilization rate in the pipeline, and improving the overall fluency of the system.

[0020] 4. The transition between the vertical rod and the horizontal rod adopts an arc design. From the perspective of fluid mechanics, the arc transition can effectively reduce the resistance when sewage impacts the cleaning rod, making the water flow smoother; from the perspective of mechanical durability, it avoids frequent scratches between sharp corners and the inner wall of the horizontal pipe, reduces the wear rate of components, extends the service life of the cleaning rod, and at the same time reduces the risk of debris accumulation caused by scratching, maintaining the cleanliness of the inside of the pipeline.

[0021] 5. Clamp a U-shaped plate at the outlet of the water tank, and fix the cleaning rod at the highest point of the U-shaped plate. This installation method strengthens the stability of the cleaning rod: the U-shaped plate provides reliable support for the cleaning rod, ensuring that it always maintains a precise position during the swing of the water tank, making the beating action more regular and impactful, enhancing the cleaning effect on the inner wall of the horizontal pipe, and avoiding the problem of cleaning failure caused by looseness.

[0022] 6. The scraper is driven by a double-hinged three-bar mechanism to scrape the wall of the water tank as the water tank swings. When the water tank receives sewage, impurities are easily attached to the inner wall. The reciprocating scraping of the scraper can remove these residues in time: on the one hand, it prevents the accumulation of impurities from affecting the swing sensitivity of the water tank, and on the other hand, it keeps the inside of the water tank clean to avoid the long-term retention of pollutants to breed odor or bacteria. At the same time, it maintains the instantaneous water storage capacity of the water tank so that it can receive enough water to ensure that the water it receives can move downward, further improving the stability and hygiene of the overall operation of the device.

[0023] 7. The curling edge of the water tank cooperates with the arc-shaped scraper, and the two ends of the scraper abut against the inner side of the curling edge. The curling edge provides precise guidance for the scraper movement, ensuring that the scraping action covers the entire wall of the water tank, without cleaning dead corners; at the same time, the fit between the curling edge and the scraper enhances the sealing of the water tank, preventing sewage from overflowing during the swinging process, ensuring the comprehensiveness of the scraping and cleaning, and avoiding sewage leakage from polluting the surrounding environment.

[0024] 8. The base axis and the reference rod form a T-shaped structure, and the base axis is symmetrically installed on the wall between the two horizontal pipes. The symmetrical layout ensures the mechanical balance when the water tank swings, reducing shaking or jamming caused by uneven force; the T-shaped structure simplifies the installation process, making the device more compact and stable, facilitating later inspection and maintenance, improving the reliability of the long-term operation of the device, and reducing the probability of failure caused by structural instability.

[0025] 9. The sewage treatment system integrates the sewer dredging device to treat the sewage in toilets, kitchens, and bathrooms in different areas. According to the characteristics of sewage from different sources, the first treatment tank and the second treatment tank are used to achieve classified purification to improve the treatment efficiency; at the same time, the dredging device is applied to the kitchen and bathroom sewer pipes to actively prevent pipe blockage, so that the two functions of "sewage purification" and "pipeline maintenance" are organically combined to build a more complete sewage treatment system and improve the practicality of the system.

[0026] 10. The first treatment pool utilizes the height difference between the pool bodies (the height design of the inlet and outlet of the connecting pipe) to achieve step-by-step maturation and sedimentation of sewage with the help of water gravity, and no additional power is required to promote the treatment process; the sludge pool and wetland pool of the second treatment pool are combined with U-shaped pipes, as well as the connection design between the sedimentation tank and the sludge pool to construct a scientific sewage purification path: the physical structure is used to optimize the sewage flow sequence, realize multiple treatments such as impurity precipitation and biological purification, ensure the sewage purification effect, and improve the sewage treatment quality and efficiency of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the sewage treatment system in the present invention.

[0028] Figure 2 It is a schematic diagram of the structure of the first treatment tank in the present invention.

[0029] Figure 3 It is a schematic diagram of the structure of the second treatment tank in the present invention.

[0030] Figure 4 It is a schematic diagram of the structure of the dredging device in the present invention.

[0031] Figure 5 It is a schematic diagram of the assembly structure of the cleaning rod and the downpipe in the present invention.

[0032] In the figure: 1. first treatment tank; 11. first maturation tank; 12. second maturation tank; 13. sedimentation tank; 14. first connecting pipe; 15. second connecting pipe; 16. third connecting pipe; 17. toilet drain pipe; 2. second treatment tank; 21. sedimentation tank; 22. wetland tank; 23. U-shaped pipe; 24. main outlet pipe; 25. kitchen drain pipe; 26. bathroom drain pipe; 27. vertical pipe; 271. avoidance trough; 28. horizontal pipe; 281. horizontal trough; 3. drain pipe dredging device; 31. base shaft; 32. seesaw; 33. water receiving trough; 331. water retaining plate; 332. U-shaped plate; 34. cleaning rod; 341. horizontal rod; 342. vertical rod; 35. reference rod; 36. connecting rod; 37. scraper. DETAILED DESCRIPTION

[0033] 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.

[0034] See also Figure 1 to Figure 5 , gives the specific composition of the sewer dredging device and sewage treatment system. Figure 1 to Figure 3 As shown, the sewage treatment system includes a first treatment tank 1 for purifying toilet sewage and a second treatment tank 2 for purifying kitchen sewage and bathroom sewage at the same time. The first treatment tank 1 and the second treatment tank 2 are both rectangular as a whole, and the first treatment tank 1 includes three sub-tanks, and the second treatment tank 2 includes two sub-tanks. The three sub-tanks of the first treatment tank 1 are a first maturation tank 11, a second maturation tank 12 and a sedimentation tank 13 which are sequentially connected and arranged along the direction of water flow. The two sub-tanks of the second treatment tank 2 are a sedimentation tank 21 and a wetland tank 22 which are sequentially arranged along the direction of water flow.

[0035] A toilet drain pipe 17 is installed at the water inlet of the first maturation tank 11, and the sewage generated in the toilet flows into the first maturation tank 11 along the toilet drain pipe 17. The first maturation tank 11 and the second maturation tank 12 are connected to each other through a gradually raised first connecting pipe 14, so that the treated sewage flows into the second maturation tank 12. The second maturation tank 12 and the sedimentation tank 13 are connected to each other through a gradually raised second connecting pipe 15.

[0036] The first maturation tank 11 has a volume ratio of 2:1, which is twice the volume of the second maturation tank 12, forming a primary hydrolysis acidification environment, and decomposing large molecular organic matter into small molecular substances through anaerobic microorganisms.

[0037] The second maturation tank 12 further converts the remaining organic matter into harmless substances through the action of anaerobic / aerobic microorganisms, creating conditions for further sedimentation in the subsequent sedimentation tank 13.

[0038] The first connecting pipe between the two maturation tanks adopts a "low-in and high-out" structure to effectively intercept feces and feces skins. Similarly, the second connecting pipe 15 is used between the second maturation tank 12 and the sedimentation tank 13, which can further intercept feces and feces skins. Through two-stage sedimentation and separation, more than 90% of the solid matter is settled in the maturation stage to avoid entering the subsequent second treatment tank 2. The volume ratio of the two maturation tanks and the sedimentation tank 13 is 2+1:3, forming a stable hydraulic retention time that can adapt to fluctuations in the water quality and quantity of rural sewage, ensuring the stability of the subsequent water inlet load of the second treatment tank 2.

[0039] The kitchen drain pipe 25 and the bathroom drain pipe 26 are installed in the sedimentation tank 21, and the sedimentation tank 21 and the wetland tank 22 are connected to each other through a U-shaped pipe 23 opening downward. The sedimentation tank 13 is connected to the sedimentation tank 21 through a third connecting pipe 16. A main outlet pipe 24 is installed at the outlet of the wetland tank 22, and the sewage after multiple treatments flows out from the main outlet pipe 24.

[0040] In the sedimentation tank 21, solid substances such as suspended matter and food residues in the sewage are removed by static sedimentation to avoid subsequent clogging of the wetland pool 22. The middle water intake design of the U-shaped pipe 23 is used to isolate the upper grease layer and the lower sediment layer, allowing only the middle sewage to enter the wetland pool 22.

[0041] The wetland pool 22 achieves deep treatment through a composite ecosystem. The gravel layer 15-20cm at the bottom of the wetland pool 22 forms a filter medium that can intercept fine suspended matter. The woven bag layer in the wetland pool 22 provides an attachment carrier for microorganisms, promoting aerobic decomposition of organic matter. Aquatic plants such as cannas planted in the wetland pool 22 absorb nutrients such as nitrogen, phosphorus and potassium through their roots. The covering soil layer covering the plant roots provides a matrix for plant growth, forming a complete ecological purification chain. The sedimentation pool 21 is connected to the wetland pool 22 through a U-shaped pipe 23, which not only prevents impurities in the sedimentation pool 21 from entering the wetland pool 22, but also ensures that the bottom filler layer of the wetland pool 22 fully exerts its adsorption effect. This two-stage structure achieves the dual treatment effect of "physical precipitation + biological purification", and ultimately realizes resource utilization through the landscape design of aquatic plants.

[0042] like Figure 4 and Figure 5 As shown, the sewer pipe dredging device 3 of the present invention is installed between the kitchen sewer pipe 25 and the bathroom sewer pipe 26 to dredge both of them. The kitchen sewer pipe 25 and the bathroom sewer pipe 26 are both L-shaped sewer pipes, with their vertical pipes 27 arranged vertically and their horizontal pipes 28 arranged horizontally, and the sewer pipe dredging device 3 is installed between the two horizontal pipes 28 parallel to each other.

[0043] The sewer pipe dredging device 3 includes a base shaft 31 fixedly mounted on the wall and arranged horizontally. The base shaft 31 and the transverse pipe 28 are parallel to each other. The base shaft 31 itself does not rotate, but serves as a support shaft for the rotation of the seesaw 32. The seesaw 32 is rotatably mounted on the base shaft 31. The seesaw 32 is a symmetrical part, and the lengths extending to both sides of the base shaft 31 are the same. The two ends of the seesaw 32 are respectively installed with a water receiving trough 33 that can receive the sewage flowing out of the corresponding transverse pipe 28. The water receiving trough 33 is semicircular, and its axis is arranged horizontally, and is located on the falling trajectory of the water flow of the corresponding transverse pipe 28, so as to receive the sewage.

[0044] One end of the two water receiving grooves 33 close to the horizontal pipe 28 is a water outlet end for the sewage received in the groove, and the other end is a water retaining end for blocking the sewage flowing down from the horizontal pipe 28. The water retaining end is installed with a water retaining plate 331 to block the sewage flushed down by the horizontal pipe 28, so that the water receiving grooves 33 can store a certain amount of water in a short time to make it sink and press up the other water receiving groove 33, and then the sewage flows out from the water outlet end, the weight is reduced, and it rises again, so that the two water receiving grooves 33 can swing up and down alternately under the impact of the sewage flowing out alternately from the two horizontal pipes 28.

[0045] A U-shaped plate 332 is clamped at the water outlet end of the water receiving trough 33, and the U-shaped plate 332 opens downward. The cleaning rod 34 is fixedly installed at the highest point of the U-shaped plate 332, and the cleaning rod 34 can make a beating action to beat the inner bottom surface of the corresponding horizontal pipe 28 as the two water receiving troughs 33 swing up and down alternately. The cleaning rod 34 is L-shaped, and its horizontal rod 341 is inserted in the horizontal pipe 28, and its vertical rod 342 is inserted in the vertical pipe 27; the vertical pipe 27 is provided with a vertically arranged avoidance groove 271 on the inner pipe wall near the water receiving trough 33, and the vertical rod 342 is slidably inserted in the avoidance groove 271 to avoid the sewage falling in the vertical pipe 27. The cleaning rod 34 is designed to be L-shaped, the horizontal rod 341 is responsible for the patting and cleaning inside the horizontal pipe 28, and the vertical rod 342 is "peaked" with the sewage in the vertical pipe 27 through the avoidance groove 271, which not only ensures that the cleaning rod 34 swings with the water receiving groove 33 to complete the cleaning task of the horizontal pipe 28, but also makes room for the sewage falling in the vertical pipe 27 through the avoidance groove 271, so as to avoid the vertical rod 342 from obstructing normal drainage and hanging solid objects in the sewage, so as to achieve the mutual non-interference of the "unblocking" and "drainage" processes, and make the device more compatible in function. A horizontal groove 281 is provided on the inner top surface of the horizontal pipe 28 for the horizontal rod 341 to be embedded when it is at the highest point, and the horizontal groove 281 and the avoidance groove 271 are connected to each other to form an L-shaped hidden groove, that is, in the non-working state, the cleaning rod 34 is completely hidden, and the sewage is not interfered with by the structure when flowing through the horizontal pipe 28, ensuring that the drainage path is unobstructed, optimizing the space utilization rate in the pipeline, and improving the overall fluency of the system.

[0046] The scraper 37 symmetrically installed inside the water receiving trough 33 adopts a double-hinged three-bar linkage design, and the reference rod 35, the connecting rod 36 and the arc-shaped scraper 37 form a spatial transmission system. The reference rod 35 is a stainless steel round rod, which is horizontally fixed on the center line of the two water receiving troughs 33 and perpendicular to the base shaft 31. Its two ends are respectively hinged to the scrapers 37 on both sides through the connecting rod 36. The scraper 37 is made of stainless steel, and the fit error with the inner wall of the water receiving trough 33 is ≤0.5mm. The edge of the scraper 37 is designed with a 15° blade and sprayed with a 0.1mmWC-Co wear-resistant coating. When the water receiving trough 33 is impacted by sewage and swings up and down, the connecting rod 36 converts the rotational motion into a reciprocating linear motion of the scraper 37 along the length of the water receiving trough 33, and the scraping frequency is synchronized with the swing frequency of the water receiving trough 33 through the double-hinged three-bar mechanism. The scraper 37 cooperates with the curling of the water receiving trough 33 to achieve 100% coverage of the inner wall of the water receiving trough 33 and automatically discharge the scraped material.

[0047] When sewage flows from the horizontal pipe 28 into the corresponding water receiving trough 33, the gravity torque generated by the impact of the water flow drives the water receiving trough 33 to swing around the base axis 31, driving the L-shaped cleaning rod 34 to move synchronously, that is, the horizontal rod 341 of the cleaning rod 34 is embedded in the inner bottom surface of the horizontal pipe 28 and beats along the swinging trajectory, and the solid impurities attached to the pipe wall are removed by periodic beating; the vertical rod 342 slides along the avoidance groove 271 on the inner wall of the vertical pipe 27, which not only avoids hindering the falling of sewage but also ensures the stability of the beating action. At the same time, the swing of the water receiving trough 33 drives the scraper 37 system through the double-hinged three-bar mechanism: the connecting rods 36 at both ends of the fixed reference rod 35 convert the rotational motion of the water receiving trough 33 into the linear reciprocating motion of the scraper 37, so that the scraper 37 scrapes against the trough wall, and the edge of the blade cooperates with the curling guide groove to realize the automatic discharge of the scraped objects. The cleaning rod 34 is stored in the L-shaped hidden groove on the top surface of the horizontal pipe 28 when not in operation to avoid interfering with the water flow; the scraper 37 is connected to the connecting rod 36 through a spherical hinge, which can adapt to certain spatial angle changes and achieve efficient and wear-resistant scraping with the 0.1mm WC-Co wear-resistant coating. Both are self-driven by the kinetic energy of sewage to achieve dual cleaning of the inner wall of the horizontal pipe 28 and the water receiving tank 33.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sewer pipe dredging device, characterized in that: The invention comprises a base shaft (31) installed between two transverse pipes (28) arranged side by side, the base shaft (31) and the transverse pipe (28) being parallel to each other; a seesaw (32) being rotatably installed on the base shaft (31), and water receiving grooves (33) for receiving sewage flowing out of the corresponding transverse pipe (28) being installed at both ends of the seesaw (32); the groove length directions of the two water receiving grooves (33) are parallel to the axial direction of the corresponding transverse pipe (28), and the ends of the two water receiving grooves (33) close to the transverse pipe (28) are for receiving sewage flowing out of the corresponding transverse pipe (28). The water receiving trough (33) has a water outlet end for receiving sewage, and the other end is a water retaining end for retaining sewage flowing down from the transverse pipe (28); the two water receiving troughs (33) can swing up and down alternately under the impact of sewage flowing out alternately from the two transverse pipes (28), and the two water receiving troughs (33) are both provided with cleaning rods (34) inserted in the corresponding transverse pipes (28), and the two cleaning rods (34) can perform a beating action to beat the inner bottom surface of the corresponding transverse pipe (28) as the two water receiving troughs (33) swing up and down alternately.

2. A sewer pipe dredging device according to claim 1, characterized in that: The cleaning rod (34) is L-shaped, with its horizontal rod (341) inserted into the horizontal pipe (28), and its vertical rod (342) inserted into the vertical pipe (27); a vertically arranged avoidance groove (271) is provided on the inner pipe wall of the vertical pipe (27) close to the water receiving groove (33), and the vertical rod (342) is slidably inserted into the avoidance groove (271) to avoid the sewage falling in the vertical pipe (27).

3. A sewer pipe dredging device according to claim 2, characterized in that: A transverse groove (281) is provided on the inner top surface of the transverse tube (28) for the transverse rod (341) to be embedded when the transverse rod (341) is at the highest point, and the transverse groove (281) and the avoidance groove (271) are connected to each other to form an L-shaped hidden groove.

4. A sewer pipe dredging device according to claim 3, characterized in that: The transition between the vertical rod (342) and the horizontal rod (341) is an arc-shaped transition.

5. A sewer pipe dredging device according to claim 4, characterized in that: A U-shaped plate (332) is clamped at the water outlet end of the water receiving trough (33), and the cleaning rod (34) is fixedly mounted at the highest point of the U-shaped plate (332).

6. A sewer pipe dredging device according to any one of claims 1 to 5, characterized in that: A scraper (37) is installed in each of the two water receiving grooves (33) to slide and scrape the groove wall of the water receiving groove (33) along the groove length direction; a fixed horizontally arranged reference rod (35) is installed in the middle of the two water receiving grooves (33), and the length direction of the reference rod (35) is perpendicular to the groove length direction of the water receiving groove (33); the two rod ends of the reference rod (35) are respectively hinged to the scraper (37) near the corresponding rod end through a connecting rod (36) to form a double-hinged three-bar mechanism; the two scrapers (37) can perform a reciprocating scraping action to scrape the water receiving grooves (33) under the traction of the two connecting rods (36) as the two water receiving grooves (33) swing up and down alternately.

7. A sewer pipe dredging device according to claim 6, characterized in that: Both sides of the water receiving trough (33) are formed with inwardly bent curling edges, and both ends of an arc-shaped scraper (37) fitted in the water receiving trough (33) are respectively abutted against the inner side surfaces of the two curling edges.

8. A sewer pipe dredging device according to claim 7, characterized in that: The base shaft (31) is fixedly mounted on the wall between the two transverse tubes (28), and the axis of the base shaft (31) is located in the symmetry plane of the two transverse tubes (28); the reference rod (35) is fixed to the other axial end of the base shaft (31), and the two cooperate to form a T-shaped rod.

9. A sewage treatment system, the sewage treatment system using a sewer pipe dredging device as claimed in claim 8, characterized in that: The invention comprises a first treatment pool (1) for purifying toilet sewage and a second treatment pool (2) for purifying kitchen sewage and bathroom sewage at the same time; the water inlet of the first treatment pool (1) is connected to a toilet drain pipe (17), and the water outlet of the first treatment pool (1) is connected to the water inlet of the second treatment pool (2); the water inlet of the second treatment pool (2) is also connected to an L-shaped kitchen drain pipe (25) and an L-shaped bathroom drain pipe (26), and the kitchen drain pipe (25) and the bathroom drain pipe (26) are arranged side by side; the drain pipe dredging device (3) is installed between the kitchen drain pipe (25) and the bathroom drain pipe (26) to dredge the two.

10. A sewage treatment system according to claim 9, characterized in that: The first treatment tank (1) comprises a first maturation tank (11), a second maturation tank (12) and a sedimentation tank (13) which are sequentially arranged and connected along a water flow direction; the first maturation tank (11) and the second maturation tank (12) are connected via a first connecting pipe (14), and the height of the first connecting pipe (14) located at the water inlet of the first maturation tank (11) is lower than the height of the first connecting pipe (14) located at the water outlet of the second maturation tank (12); the second maturation tank (12) and the sedimentation tank (13) are connected via a second connecting pipe (15), and the second connecting pipe (15) is located at the water outlet of the second maturation tank (12). ) is lower than the height of the water outlet of the second connecting pipe (15) in the sedimentation tank (13); the second treatment tank (2) comprises a sedimentation tank (21) and a wetland tank (22) arranged in sequence along the water flow direction, and a kitchen drain pipe (25) and a bathroom drain pipe (26) are installed in the sedimentation tank (21); the sedimentation tank (21) and the wetland tank (22) are connected to each other through a U-shaped pipe (23) with an opening facing downward; the sedimentation tank (13) is connected to the sedimentation tank (21) through a third connecting pipe (16), and a main water outlet pipe (24) is installed at the water outlet of the wetland tank (22).

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