Drain pipe with backflow prevention function
By designing connection pipes, connecting hoses, deflectors, dampers and limit blocks on the drain pipes, the limitations of drain pipes are solved, and effective sewage filtration and one-way drainage are achieved.
Patent Information
- Application Number
- CN202421320356.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-06-11
AI Technical Summary
Existing drainage pipes are prone to reflow during drainage, and have great installation limitations.
A drainage pipe with a function of preventing return is designed. By fixing and installing the connection pipe on the outer side of the upper end of the drainage pipe and an integrated fixing and installing the connection hose on the outer side of the lower end, combined with the design of the deflector, damper and limit block, one-way drainage and anti-reflow effect is achieved.
It effectively prevents the return of sewage, improves the installation flexibility of drainage pipes, and ensures effective filtration and discharge of sewage through the coordination of the filter net and the deflector.
Smart Images
Figure CN222557782U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drainage pipes, in particular to a drainage pipe with a backflow prevention function. Background Art
[0002] Drain pipes are a kind of necessary pipe tool mainly used for collecting and discharging rainwater and domestic sewage. They are made of high-density polyethylene (HDPE) with other additives added. When installing drain pipes, it is necessary to follow the principle of "underground first, then ground", "main pipe first, then branch pipe", so as to facilitate the discharge of rainwater or domestic sewage and collect them to the treatment plant;
[0003] During the drainage process, the sewage in the pipe is easily affected by the outside world and flows back, which is extremely inconvenient. In addition, the distance between the drainage pipe and the main pipe is not fixed, which makes the installation more limited. Utility Model Content
[0004] To this end, the utility model provides a drain pipe with a backflow prevention function to solve the above-mentioned problems in the prior art.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] According to a first aspect of the utility model, a drain pipe with a backflow prevention function comprises:
[0007] A second drain pipe, a connecting hose is integrally fixedly installed on the outer side of the lower end thereof, and a connecting pipe is fixedly installed on the outer side of the upper end of the second drain pipe, and fixing rods are installed on both left and right ends of the outer side of the lower end of the connecting hose, and the upper end of the fixing rod passes through a fixing block located at the outer end of the second drain pipe;
[0008] A mounting ring is mounted inside the upper end of the first drain pipe, and a filter screen is arranged outside the lower end of the mounting ring, a guide plate is mounted on the inner middle part of the first drain pipe through a hinge shaft, and a limit rod is fixedly mounted inside the lower end of the guide plate;
[0009] The damper is installed on the inner side of the first drain pipe and located outside the lower end of the guide plate. A limit block in contact with the guide plate is fixedly installed on the lower right end of the first drain pipe.
[0010] Preferably, the fixing rod and the fixing block are connected in a sliding manner, and a mounting bolt is provided through the outer side of the fixing block.
[0011] Preferably, a thread groove structure matching with the mounting bolt is provided inside the outer side of the fixing rod.
[0012] Preferably, the connecting pipe is connected to the first drain pipe in a threaded manner, and a guide block located outside the lower end of the filter screen is fixedly installed on the inner end of the first drain pipe.
[0013] Preferably, protruding structures are fixedly mounted on both left and right ends of the outer side of the mounting ring, and an arc-shaped groove structure matching the protruding structure is opened inside the upper end of the first drain pipe.
[0014] Preferably, a sealing sheet is provided at the connection between the guide plate and the limit block, and the guide plate is arranged at an incline.
[0015] Preferably, the output end of the damper is connected with a connecting block, and the upper end of the connecting block is located inside the lower end of the guide plate, and the connecting block is connected to the limit rod in a sliding manner.
[0016] The utility model has the following advantages:
[0017] 1. Through the fixing rod and the fixing block, the fixing rod slides inside the fixing block, and then the mounting bolt is rotated and inserted into the fixing block and the fixing rod, so that the mounting bolt is threadedly connected with the corresponding position of the thread groove structure inside the fixing rod, thereby facilitating the fixing of the fixing rod to achieve the purpose of fixing the lower end of the connecting hose and facilitating the adjustment of the length of the connecting hose;
[0018] 2. Through the filter net, the installation ring plays a better installation role on the filter net, which is convenient for installing the filter net inside the upper end of the first drain pipe, so that the filter net can filter the sewage and prevent impurities from entering the first drain pipe;
[0019] 3. Through the guide plate and the connecting block, the guide plate has a good one-way drainage effect under the action of the damper, the connecting block and the limit block, and the limit block can block the guide plate, so that the whole has a good anti-backflow effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 A front cross-sectional view of a drain pipe with a backflow prevention function provided in some embodiments of the utility model.
[0021] Figure 2 A top cross-sectional view of a drain pipe with a backflow prevention function provided in some embodiments of the utility model.
[0022] Figure 3 A drain pipe with backflow prevention function provided in some embodiments of the utility model Figure 1 Enlarged view of point A in the middle.
[0023] In the figure: 1. first drain pipe, 2. second drain pipe, 3. connecting hose, 4. connecting pipe, 5. fixing rod, 6. fixing block, 7. mounting bolt, 8. mounting ring, 9. filter screen, 10. guide block, 11. guide plate, 12. limit rod, 13. damper, 14. connecting block, 15. limit block, 16. sealing sheet. DETAILED DESCRIPTION
[0024] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part 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. Example
[0025] like Figures 1 to 3 As shown, a drain pipe with a backflow prevention function in an embodiment of the first aspect of the utility model comprises: a connecting hose 3 is integrally fixedly installed on the outer side of the lower end of the second drain pipe 2, so that the connecting hose 3 can be conveniently installed through the second drain pipe 2, and a connecting pipe 4 is fixedly installed on the outer side of the upper end of the second drain pipe 2, and the connecting pipe 4 is connected to the first drain pipe 1 in a threaded manner. When installing, the connecting pipe 4 is rotated and inserted into the lower end of the first drain pipe 1. At this time, the connecting pipe 4 is threadedly connected to the first drain pipe 1, so that the second drain pipe 2 is conveniently spliced and fixedly installed on the outer side of the lower end of the first drain pipe 1;
[0026] The fixing rods 5 are installed at both left and right ends of the outer side of the lower end of the connecting hose 3, and the upper ends of the fixing rods 5 penetrate the fixing blocks 6 located at the outer ends of the second drain pipe 2. The fixing rods 5 have a fixing function on the lower end of the connecting hose 3. When it is necessary to connect the whole with the main pipe for installation, the length of the connecting hose 3 can be adjusted according to the distance. The fixing rods 5 and the fixing blocks 6 are connected in a sliding manner, and the outer side of the fixing blocks 6 is penetrated by the inner side thereof. A threaded groove structure matched with the mounting bolts 7 is provided in the outer side of the fixing rods 5. When adjusting the length of the lower end of the connecting hose 3, the connecting hose 3 can be stretched or contracted according to the installation requirements, so that the fixing rods 5 slide inside the fixing blocks 6, and then the mounting bolts 7 are rotated and inserted into the fixing blocks 6 and the fixing rods 5, so that the mounting bolts 7 are threadedly connected with the corresponding positions of the threaded groove structure inside the fixing rods 5, thereby facilitating the fixing of the fixing rods 5, so as to achieve the purpose of fixing the lower end of the connecting hose 3.
[0027] The mounting ring 8 is mounted inside the upper end of the first drain pipe 1, and a filter screen 9 is arranged outside the lower end of the mounting ring 8. A guide block 10 located outside the lower end of the filter screen 9 is fixedly mounted on the inner side of the first drain pipe 1. Both left and right ends of the outer side of the mounting ring 8 are fixedly mounted with protrusion structures, and an arc-shaped groove structure matching the protrusion structure is provided inside the upper end of the first drain pipe 1. The mounting ring 8 plays a good installation role for the filter screen 9, and it is convenient to install the filter screen 9 inside the upper end of the first drain pipe 1, so that the filter screen 9 can filter sewage and prevent impurities from entering the first drain pipe 1. When the corresponding filter screen 9 needs to be disassembled, the mounting ring 8 can be rotated counterclockwise to the top to slide the mounting ring 8 and the arc-shaped groove structure provided inside the upper end of the first drain pipe 1, and then the mounting ring 8 can be lifted upward;
[0028] A guide plate 11 is installed at the middle part of the inner side of the first drain pipe 1 through a hinge shaft, and a limit rod 12 is fixedly installed inside the lower end of the guide plate 11. The damper 13 is installed on the inner side of the first drain pipe 1 and is located outside the lower end of the guide plate 11. The output end of the damper 13 is connected with a connecting block 14, and the upper end of the connecting block 14 is located inside the lower end of the guide plate 11, and the connecting block 14 is connected to the limit rod 12 in a sliding manner. The guide plate 11 is located directly below the filter screen 9. When the filtered sewage drips to the outer side of the upper end of the guide plate 11, the guide plate 11 can rotate under the action of the sewage. At this time, the damper 13 and the spring arranged on the outer side thereof are compressed, and the connecting block 14 slides with the limit rod 12, so that the right end of the guide plate 11 is separated from the limit block 15 and the sealing sheet 16, thereby playing a role of one-way drainage;
[0029] A limit block 15 in contact with the guide plate 11 is fixedly installed at the lower right end of the first drain pipe 1, and a sealing sheet 16 is provided at the connection between the guide plate 11 and the limit block 15, and the guide plate 11 is arranged at an angle. When sewage backflows, the limit block 15 blocks the guide plate 11, and the sealing sheet 16 can compensate for the gap at the connection between the limit block 15 and the guide plate 11, so that the whole has a better anti-backflow effect.
Claims
1. A drainage pipe with backflow prevention function, characterized in that: include: A second drain pipe (2) has a connecting hose (3) integrally fixedly mounted on the outer side of its lower end, and a connecting pipe (4) fixedly mounted on the outer side of the upper end of the second drain pipe (2), fixing rods (5) are mounted on both left and right ends of the outer side of the lower end of the connecting hose (3), and the upper end of the fixing rod (5) penetrates a fixing block (6) located at the outer end of the second drain pipe (2); A mounting ring (8) is mounted inside the upper end of the first drainage pipe (1), and a filter screen (9) is arranged outside the lower end of the mounting ring (8); a guide plate (11) is mounted on the middle part of the inner side of the first drainage pipe (1) via a hinge shaft, and a limit rod (12) is fixedly mounted inside the lower end of the guide plate (11); The damper (13) is installed on the inner side of the first drainage pipe (1) and is located outside the lower end of the guide plate (11). A limit block (15) in contact with the guide plate (11) is fixedly installed on the lower right end of the first drainage pipe (1).
2. A drain pipe with backflow prevention function according to claim 1, characterized in that: The fixing rod (5) and the fixing block (6) are connected in a sliding manner, and a mounting bolt (7) is provided through the outside of the fixing block (6).
3. A drain pipe with backflow prevention function according to claim 2, characterized in that: The outer interior of the fixing rod (5) is provided with a thread groove structure adapted to the mounting bolt (7).
4. The drain pipe with backflow prevention function according to claim 1, characterized in that: The connecting pipe (4) is connected to the first drainage pipe (1) in a threaded manner, and a guide block (10) located outside the lower end of the filter screen (9) is fixedly mounted on the inner end of the first drainage pipe (1).
5. The drain pipe with backflow prevention function according to claim 1, characterized in that: The left and right ends of the outer side of the mounting ring (8) are both fixedly mounted with protruding structures, and the upper end of the first drain pipe (1) is provided with an arc-shaped groove structure matching the protruding structure.
6. The drain pipe with backflow prevention function according to claim 1, characterized in that: A sealing sheet (16) is provided at the connection between the guide plate (11) and the limit block (15), and the guide plate (11) is arranged in an inclined manner.
7. The drain pipe with backflow prevention function according to claim 1, characterized in that: The output end of the damper (13) is connected to a connecting block (14), and the upper end of the connecting block (14) is located inside the lower end of the guide plate (11), and the connecting block (14) is connected to the limiting rod (12) in a sliding manner.