Backflow prevention structure suitable for municipal sewage pipeline
By designing anti-overflow and anti-blocking devices in municipal sewage pipelines, sewage backflow is prevented by using components such as limit rings, elastic rubber plates, folding plates, float balls, etc., and preventing blockage through components such as piston rods and filter plates, sewage is solved The problems of backflow and blockage have achieved effective environmental protection and normal operation of drainage.
Patent Information
- Application Number
- CN202420584528.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-25
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-03-25
AI Technical Summary
Traditional municipal sewage pipelines are prone to sewage reflux during drainage, resulting in environmental pollution and odor circulation, affecting normal drainage.
An anti-reflow structure including an anti-overflow device and an anti-blocking device is designed. The anti-overflow device prevents the backflow of sewage through components such as limit rings, elastic rubber plates, folding plates and floats. The anti-blocking device passes through the piston rod and filters. The plate and telescopic rod prevent the pipe from being blocked.
Effectively prevent sewage backflow and blockage, prevent sewage odor circulation, ensure normal drainage, and remove impurities through filtration to prevent environmental pollution.
Smart Images
Figure CN222183594U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drainage pipes, in particular to an anti-backflow structure suitable for municipal sewage pipes. Background Art
[0002] Municipal drainage pipes refer to rainwater and sewage pipes under municipal roads. In engineering, they are usually called municipal drainage pipes. Drainage pipes can be used for sewage discharge. Drainage pipes refer to the system composed of pipes and ancillary facilities that collect and discharge sewage, wastewater and rainwater. Including trunk pipes, branch pipes and pipes leading to treatment plants, no matter they are built on the streets or anywhere else, as long as they are pipes that play a drainage role.
[0003] However, in the prior art, during the use of traditional municipal sewage pipes, when drainage is carried out in the pipes, the pressure in the pipes changes, causing the sewage in the pipes to flow back. The backflow of sewage pollutes the production or living environment and affects the normal operation of the pipes. In addition, the backflow of sewage causes the odor in the sewage to circulate, further polluting the production or living environment. Utility Model Content
[0004] In view of the deficiencies of the prior art, the technical solution adopted by the utility model to solve the technical problems is: an anti-backflow structure suitable for municipal sewage pipes, comprising: a drain pipe, a mounting ring; an anti-backflow device, the anti-backflow device is used to prevent backflow from occurring inside the drain pipe; an anti-blocking device, the anti-blocking device is used to prevent blockage from occurring inside the drain pipe; wherein the anti-backflow device comprises a limiting ring, the outer wall of the limiting ring is fixedly connected to a fixing plate, the outer wall of the fixing plate is fixedly connected to an elastic rubber plate, and the elastic rubber plates are symmetrically arranged along both sides of the fixing plate, the outer wall of the elastic rubber plate is fixedly connected to a folding plate, the fixing plate A connecting pipe is fixedly connected to the outer side of the plate, an arc plate is fixedly connected to the outer wall of the connecting pipe, a float is slidably connected to the outer wall of the connecting pipe, a matching ring is fixedly connected to the outer wall of the float, a swing rod is rotatably connected to the outer wall of the matching ring through a pin shaft, and the outer wall of the swing rod is fixedly connected to the outer wall of the folding plate. First, when sewage flows into the pipeline from the water inlet, the water flow will impact the folding plate to close on the fixed plate, so that the elastic rubber plate drives the folding plate to deflect, and the folding plate drives the swing rod to move, the swing rod drives the matching ring to slide, and the matching ring drives the float to slide along the length direction of the connecting pipe, thereby realizing the normal drainage of water from the water inlet.
[0005] Preferably, the outer wall of the limiting ring is fixedly connected to the inner wall of the drain pipe, the outer wall of the folding plate contacts the inner wall of the limiting ring, the outer wall of the float contacts the inner wall of the arc plate, the outer wall of the drain pipe is fixedly connected to the inner wall of the mounting ring, and the mounting ring is symmetrically arranged along both sides of the drain pipe. The flowing water further pushes the float to slide on the outer wall of the connecting pipe, and the movement of the float drives the matching ring to slide, and the matching ring drives the swing rod to push the folding plate to unfold, so that the folding plate is against the limiting ring until the float slides into the inner cavity of the arc plate for limitation, thereby preventing the water flowing out of the outlet from overflowing.
[0006] Preferably, the anti-clogging device includes a piston rod, the outer wall of the piston rod is slidably connected to the inner wall of the connecting pipe via a slide groove, and the slide groove is provided in the wall of the connecting pipe, and one end of the piston rod close to the arc plate is fixedly connected to the inner wall of the float, and when the drainage pipe is drained normally, the float pushes the piston rod to slide along the slide groove, and the movement of the filter plate squeezes the telescopic rod, causing the telescopic rod on the anti-clogging device to contract inward, and the telescopic rod drives the filter plate to slide in the inner wall of the screening box.
[0007] Preferably, the end of the piston rod away from the float is fixedly connected to a filter plate, the outer wall of the filter plate is slidably connected to a screening box, the outer wall of the screening box is fixedly connected to the inner wall of the drain pipe, the sewage flows through the filter plate and the interior of the screening box through the conical cylinder, the impurities in the sewage are filtered and removed by the screening box and the filter plate, the larger impurity particles fall directly into the collection box, and the filtered water is discharged from the outlet.
[0008] Preferably, a conical cylinder is fixedly connected to the inner wall of the screening box, and the conical cylinders are linearly arranged along the inner wall of the screening box, a collecting box is fixedly connected to the inner wall of the drain pipe, and the inner wall of the collecting box is fixedly connected to the inner wall of the screening box, a telescopic rod is fixedly connected to the inner wall of the screening box, and the telescopic rod is linearly arranged along the inner wall of the screening box, one end of the telescopic rod away from the screening box is fixedly connected to the outer wall of the filter plate, a spring is fixedly connected to the outer wall of the piston rod, and one end of the spring away from the float is fixedly connected to the outer wall of the fixed plate, when water flows back, the telescopic rod extends outward, the telescopic rod drives the filter plate to move, the filter plate pushes the piston rod to slide along the slide groove, so that the piston rod drives the float to move, and when there is no water flow in the drain pipe, the telescopic rod extends outward, and the extended telescopic rod drives the filter plate to move in the screening box to prevent blockage in the screening box.
[0009] The beneficial effects of the utility model are as follows:
[0010] 1. The utility model is provided with an anti-overflow device. When water flows back, the water flow will impact the filter plate to slide on the inner wall of the screening box, the filter plate drives the piston rod to slide along the slide groove, the piston rod drives the float to slide on the outer wall of the connecting pipe, and at the same time, the flowing water further drives the float to slide on the outer wall of the connecting pipe, the movement of the float drives the matching ring to slide, the matching ring drives the swing rod to push the folding plate to unfold, and prevents the water flowing out of the water outlet from overflowing. When the water flows back, the telescopic rod extends outward, the telescopic rod drives the filter plate to move, the filter plate drives the piston rod to slide along the slide groove, the piston rod drives the float to move, the float drives the swing rod on the matching ring to move, so that the swing rod drives the folding plate to unfold, and the unfolded folding plate blocks the circulation of odor in the sewage, thereby preventing the water from flowing back.
[0011] 2. The utility model is provided with an anti-clogging device. When the drainage pipe is drained normally, the float pushes the piston rod to slide along the slide groove. The movement of the filter plate squeezes the telescopic rod, which contracts inwardly. The telescopic rod drives the filter plate to slide in the inner wall of the screening box. The sewage flows through the filter plate and the inside of the screening box through the conical cylinder. Impurities in the sewage are filtered and removed by the screening box and the filter plate. Large impurity particles directly fall into the collection box. The filtered water is discharged from the water outlet. When there is no water flow in the drainage pipe, the telescopic rod extends outward. The extended telescopic rod drives the filter plate to move in the screening box to prevent blockage in the screening box. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is the front view of the utility model;
[0013] Figure 2 It is a cross-sectional view of the utility model;
[0014] Figure 3 It is a structural schematic diagram of the anti-overflow device of the utility model;
[0015] Figure 4 It is a schematic diagram of the structure of the back of the anti-overflow device of the utility model;
[0016] Figure 5 It is an exploded view of the back of the anti-overflow device of the utility model;
[0017] Figure 6 It is a structural schematic diagram of the anti-blocking device of the utility model.
[0018] In the figure: 1. drain pipe; 2. mounting ring; 3. anti-overflow device; 31. limit ring; 32. fixing plate; 33. elastic rubber plate; 34. folding plate; 35. connecting pipe; 351. slide groove; 36. arc plate; 37. float; 38. matching ring; 381. swing rod; 4. anti-blocking device; 41. piston rod; 42. filter plate; 43. screening box; 44. conical cylinder; 45. collecting box; 46. telescopic rod; 47. spring. DETAILED DESCRIPTION
[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.
[0020] Example:
[0021] See also Figure 1 - Figure 6 The utility model provides a technical solution: an anti-backflow structure suitable for municipal sewage pipes, comprising: a drain pipe 1, a mounting ring 2, an anti-backflow device 3, the anti-backflow device 3 is used to prevent backflow from occurring inside the drain pipe 1; an anti-blocking device 4, the anti-blocking device 4 is used to prevent blockage from occurring inside the drain pipe 1; wherein the anti-backflow device 3 comprises a limiting ring 31, the outer wall of the limiting ring 31 is fixedly connected to a fixing plate 32, the outer wall of the fixing plate 32 is fixedly connected to an elastic rubber plate 33, and the elastic rubber plate 33 is symmetrically arranged along both sides of the fixing plate 32, the outer wall of the elastic rubber plate 33 is fixedly connected to a folding plate 34, the outer side of the fixing plate 32 is fixedly connected to a folding plate 34, and the outer side of the fixing plate 32 is fixedly connected to a folding plate 34. A connecting pipe 35 is fixedly connected, and an arc plate 36 is fixedly connected to the outer wall of the connecting pipe 35. A float 37 is slidably connected to the outer wall of the connecting pipe 35. A matching ring 38 is fixedly connected to the outer wall of the float 37. The outer wall of the matching ring 38 is rotatably connected to a swing rod 381 through a pin shaft. The outer wall of the swing rod 381 is fixedly connected to the outer wall of the folding plate 34. The outer wall of the limiting ring 31 is fixedly connected to the inner wall of the drain pipe 1. The outer wall of the folding plate 34 contacts the inner wall of the limiting ring 31. The outer wall of the float 37 contacts the inner wall of the arc plate 36. The outer wall of the drain pipe 1 is fixedly connected to the inner wall of the mounting ring 2, and the mounting ring 2 is symmetrically arranged along both sides of the drain pipe 1.
[0022] The anti-clogging device 4 includes a piston rod 41, the outer wall of the piston rod 41 is slidably connected to the inner wall of the connecting pipe 35 through a slide groove 351, and the slide groove 351 is opened in the wall of the connecting pipe 35, the end of the piston rod 41 close to the arc plate 36 is fixedly connected to the inner wall of the float 37, and the end of the piston rod 41 away from the float 37 is fixedly connected to a filter plate 42, the outer wall of the filter plate 42 is slidably connected to a screen box 43, the outer wall of the screen box 43 is fixedly connected to the inner wall of the drain pipe 1, the inner wall of the screen box 43 is fixedly connected to a conical cylinder 44, and the conical cylinder 44 is fixedly connected to the inner wall of the drain pipe 1. The cylinder 44 is linearly arranged along the inner wall of the screening box 43, the inner wall of the drain pipe 1 is fixedly connected with a collecting box 45, the inner wall of the collecting box 45 is fixedly connected to the inner wall of the screening box 43, the inner wall of the screening box 43 is fixedly connected with a telescopic rod 46, and the telescopic rod 46 is linearly arranged along the inner wall of the screening box 43, one end of the telescopic rod 46 away from the screening box 43 is fixedly connected to the outer wall of the filter plate 42, the outer wall of the piston rod 41 is fixedly connected with a spring 47, and one end of the spring 47 away from the float 37 is fixedly connected to the outer wall of the fixed plate 32.
[0023] Working principle:
[0024] When in use, the drain pipe 1 is connected to the external pipe through the mounting ring 2, and the anti-overflow device 3 in the drain pipe 1 prevents the sewage in the pipe from flowing back. First, when the sewage flows into the pipe from the water inlet, the water flow will impact the folding plate 34, and the folding plate 34 is closed on the fixed plate 32 through the elastic rubber plate 33. The folding plate 34 drives the swing rod 381 to move, and the swing rod 381 drives the matching ring 38 to slide, and the matching ring 38 drives the float 37 to slide along the length direction of the connecting pipe 35, so that the water flow is drained normally from the water inlet;
[0025] When the drainage is normal in the drainage pipe 1, the float 37 pushes the piston rod 41 to slide along the slide groove 351, the piston rod 41 drives the spring 47 to stretch, the movement of the filter plate 42 squeezes the telescopic rod 46, so that the telescopic rod 46 on the anti-clogging device 4 shrinks inward, and the telescopic rod 46 drives the filter plate 42 to slide in the inner wall of the screening box 43, and the sewage flows through the filter plate 42 and the inside of the screening box 43 through the conical cylinder 44. The impurities in the sewage are filtered and removed by the screening box 43 and the filter plate 42, and the larger impurity particles directly fall into the collection box 45, and the filtered water is discharged from the water outlet. When there is no water flow in the drainage pipe 1, the telescopic rod 46 extends outward, and the extended telescopic rod 46 drives the filter plate 42 to slide in the inner wall of the screening box 43 to prevent the screening box 43 from being blocked;
[0026] When the water in the drain pipe 1 flows back, the water flow will impact the filter plate 42 to slide on the inner wall of the screening box 43, and the filter plate 42 drives the piston rod 41 to slide along the slide groove 351, so that the spring 47 on the fixed plate 32 drives the piston rod 41 to reset, and the piston rod 41 pushes the float 37 to slide on the outer wall of the connecting pipe 35. At the same time, the flowing water further pushes the float 37 to slide on the outer wall of the connecting pipe 35. The movement of the float 37 drives the matching ring 38 to slide, and the matching ring 38 drives the swing rod 381 to push the folding plate 34 to unfold, so that the folding plate 34 4 abuts against the limiting ring 31 until the float 37 slides into the inner cavity of the arc plate 36 for limiting, thereby preventing the water flowing out of the water outlet from overflowing. When the water flows backward, the telescopic rod 46 extends outward, and the telescopic rod 46 drives the filter plate 42 to move. The filter plate 42 pushes the piston rod 41 to slide along the slide groove 351, so that the piston rod 41 drives the float 37 to move, and the float 37 drives the swing rod 381 on the matching ring 38 to move, so that the swing rod 381 drives the folding plate 34 to unfold, and the unfolded folding plate 34 blocks the flow of odor in the sewage.
[0027] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.
Claims
1. A backflow prevention structure suitable for a municipal sewage pipe, comprising: Drain pipe (1); Mounting ring (2); An anti-overflow device (3), the anti-overflow device (3) being used to prevent overflow from occurring inside the drainage pipe (1); An anti-clogging device (4), the anti-clogging device (4) being used to prevent clogging from occurring inside the drainage pipe (1); The anti-overflow device (3) comprises a limit ring (31), the outer wall of the limit ring (31) is fixedly connected to a fixed plate (32), the outer wall of the fixed plate (32) is fixedly connected to an elastic rubber plate (33), and the elastic rubber plate (33) is symmetrically arranged along two sides of the fixed plate (32), the outer wall of the elastic rubber plate (33) is fixedly connected to a folding plate (34), the outer side of the fixed plate (32) is fixedly connected to a connecting tube (35), the outer wall of the connecting tube (35) is fixedly connected to an arc plate (36), the outer wall of the connecting tube (35) is slidably connected to a floating ball (37), the outer wall of the floating ball (37) is fixedly connected to a matching ring (38), the outer wall of the matching ring (38) is rotatably connected to a swing rod (381) via a pin shaft, and the outer wall of the swing rod (381) is fixedly connected to the outer wall of the folding plate (34).
2. The backflow prevention structure suitable for municipal sewage pipes according to claim 1, characterized in that: The outer wall of the limiting ring (31) is fixedly connected to the inner wall of the drain pipe (1), the outer wall of the folding plate (34) is in contact with the inner wall of the limiting ring (31), the outer wall of the floating ball (37) is in contact with the inner wall of the arc plate (36), the outer wall of the drain pipe (1) is fixedly connected to the inner wall of the mounting ring (2), and the mounting ring (2) is symmetrically arranged along two sides of the drain pipe (1).
3. The backflow prevention structure applicable to municipal sewage pipes according to claim 1 is characterized in that: The anti-blocking device (4) comprises a piston rod (41), the outer wall of the piston rod (41) being slidably connected to the inner wall of the connecting pipe (35) via a slide groove (351), and the slide groove (351) is provided in the wall of the connecting pipe (35), and one end of the piston rod (41) close to the arc plate (36) is fixedly connected to the inner wall of the floating ball (37).
4. The backflow prevention structure applicable to municipal sewage pipes according to claim 3 is characterized in that: One end of the piston rod (41) away from the float (37) is fixedly connected to a filter plate (42), the outer wall of the filter plate (42) is slidably connected to a sieve box (43), and the outer wall of the sieve box (43) is fixedly connected to the inner wall of the drainage pipe (1).
5. The backflow prevention structure applicable to municipal sewage pipes according to claim 4 is characterized in that: The inner wall of the screening box (43) is fixedly connected to a conical cylinder (44), and the conical cylinder (44) is linearly arranged along the inner wall of the screening box (43); the inner wall of the drainage pipe (1) is fixedly connected to a collecting box (45), and the inner wall of the collecting box (45) is fixedly connected to the inner wall of the screening box (43); the inner wall of the screening box (43) is fixedly connected to a telescopic rod (46), and the telescopic rod (46) is linearly arranged along the inner wall of the screening box (43); one end of the telescopic rod (46) away from the screening box (43) is fixedly connected to the outer wall of the filter plate (42); the outer wall of the piston rod (41) is fixedly connected to a spring (47), and one end of the spring (47) away from the float (37) is fixedly connected to the outer wall of the fixed plate (32).