PVC drainage pipe for municipal engineering water supply and drainage pipeline

Abstract

The utility model belongs to the technical field of drainage pipes, and particularly relates to a PVC drainage pipe for municipal engineering water supply and drainage pipelines, which comprises pipe bodies, connecting hanging lugs are arranged at the ends, close to each other, of the adjacent pipe bodies, the two connecting hanging lugs are connected through a fastening assembly, and the fastening assembly comprises a connecting plate. A fixed push plate and a movable push plate are arranged on the connecting plate, the two connecting hanging lugs are located between the fixed push plate and the movable push plate, a fastening screw sequentially penetrates through the fixed plate and the two connecting hanging lugs to be connected with the movable push plate in a threaded fit mode, and the outer walls, close to the connecting position, of the adjacent pipe bodies are sleeved with fixing pieces. According to the utility model, two PVC drainage pipes can be connected together in a labor-saving manner, the insertion tightness can be ensured, and the fixing piece can prevent leakage caused by separation of pipe bodies due to overhigh water pressure.

Description

Technical Field

[0001] This utility model relates to the field of drainage pipe technology, specifically a PVC drainage pipe for municipal engineering water supply and drainage pipelines. Background Technology

[0002] Municipal drainage pipes refer to rainwater and sewage pipes under municipal roads, commonly known as "sewage pipes." In engineering, they are usually called municipal drainage pipes. Based on the current infrastructure under municipal roads in China, various pipelines are typically installed, such as power, communication, gas, water supply, and drainage pipes. The main characteristics of PVC drainage pipes include excellent corrosion resistance, lightweight, ease of installation, good sealing, and long service life. Firstly, PVC material has excellent corrosion resistance, resisting the erosion of most acids, alkalis, and salts, thus ensuring the long-term stable operation of the drainage pipes. Secondly, PVC drainage pipes have low density and are lightweight, making them easy to transport and install. However, connecting two adjacent PVC drainage pipes requires two people, each holding one pipe, and then inserting the two pipes together. Tightly connecting the two pipes requires considerable effort from two people, and leakage may occur at the connection point under excessive water pressure. Utility Model Content

[0003] In order to overcome the above-mentioned defects in the existing technology, this utility model provides a PVC drainage pipe for municipal engineering water supply and drainage pipelines.

[0004] A PVC drainage pipe for municipal engineering water supply and drainage pipelines includes a pipe body. Each adjacent end of the pipe body is provided with a connecting lug. The two connecting lugs are connected by a fastening assembly. The fastening assembly includes a connecting plate. The connecting plate is provided with a fixed push plate and a movable push plate. The two connecting lugs are located between the fixed push plate and the movable push plate. A fastening screw passes through the fixed plate and the two connecting lugs in sequence and is threadedly connected to the movable push plate. A fixing member is sleeved on the outer wall of the adjacent pipe body near the connection point.

[0005] Furthermore, a sealing ring is provided at the connection between two adjacent pipe bodies.

[0006] Furthermore, a fixing member is fitted on the outer wall of the adjacent pipe near the connection point. The fixing member includes an upper positioning sleeve and a lower positioning sleeve. The cross-section of the upper positioning sleeve and the lower positioning sleeve is semi-circular. The end faces of the upper positioning sleeve and the lower positioning sleeve that are close to each other are provided with outwardly extending connecting protrusions. A U-shaped locking member fixes the connecting protrusions on the same side of the upper positioning sleeve and the lower positioning sleeve.

[0007] Furthermore, reinforcing ribs are provided on the sidewalls of the U-shaped fastener and the sidewalls of the connecting protrusion.

[0008] Furthermore, the inner walls of the upper and lower positioning sleeves are provided with several annular limiting protrusions, and the outer walls of the adjacent tubes near the connection point are provided with positioning protrusions that are staggered with the limiting protrusions.

[0009] Furthermore, the pipe body includes an outer pipe and an inner pipe, which are connected by a number of connecting keys circumferentially distributed around the central axis of the pipe body.

[0010] Furthermore, the movable push plate is provided with a slider, and the connecting plate is provided with a groove that cooperates with the slider.

[0011] Furthermore, the end of the fastening screw away from the movable push plate is provided with a handle.

[0012] Due to the adoption of the above technical solution, the beneficial technical effects of this utility model are as follows: In this utility model, two adjacent PVC drain pipes are placed close together, and the fastening screws are passed through the through holes of the fixing plate and the two connecting lugs in sequence. Then, they are connected with the movable push plate by thread. By rotating the fastening screws, the movable push plate pushes the connecting lugs, thereby allowing the two adjacent PVC drain pipes to be inserted together. This allows the two PVC drain pipes to be connected together with relatively little effort, and ensures the tightness of the insertion. The fixing parts can prevent leakage caused by the separation of the pipes due to excessive water pressure. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of a PVC drainage pipe for municipal engineering water supply and drainage pipelines according to the present invention;

[0014] Figure 2 This is a top view of a PVC drainage pipe for municipal engineering water supply and drainage pipelines according to the present invention;

[0015] Figure 3 This utility model Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0016] Figure 4 This is a schematic diagram of the U-shaped locking component in this utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the tube body in this utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the fixing component in this utility model;

[0019] Figure 7 This is a side view of the tube body in this utility model.

[0020] In the diagram: 1. Tube body; 101. Outer tube; 102. Inner tube; 2. Connecting lug; 3. Connecting plate; 4. Fixed push plate; 5. Movable push plate; 6. Fastening screw; 7. Sealing ring; 8. Upper positioning sleeve; 9. Lower positioning sleeve; 10. Connecting protrusion; 11. U-shaped snap-fit; 12. Reinforcing rib; 13. Limiting protrusion; 14. Positioning protrusion; 15. Connecting key; 16. Slider; 17. Slide groove; 18. Handle. Detailed Implementation

[0021] To more clearly illustrate the technical solution of this utility model, the following description is made in conjunction with the accompanying drawings. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings and embodiments without creative effort, and all of them fall within the protection scope of this utility model.

[0022] according to Figure 1-7 As shown, a PVC drainage pipe for municipal engineering water supply and drainage pipelines includes a pipe body 1. Each end of an adjacent pipe body 1 is provided with a connecting lug 2. The two connecting lugs 2 are connected by a fastening assembly. The fastening assembly includes a connecting plate 3. The connecting plate 3 is provided with a fixed push plate 4 and a movable push plate 5. The two connecting lugs 2 are located between the fixed push plate 4 and the movable push plate 5. A fastening screw 6 passes through the fixed plate, the two connecting lugs 2 and the movable push plate 5 in sequence and is threadedly connected. A fixing member is sleeved on the outer wall of the adjacent pipe body 1 near the connection point.

[0023] In the above specific technical solution, two adjacent PVC drain pipes are placed close together. The fastening screw 6 is passed through the through holes of the fixing plate and the two connecting lugs 2 in sequence, and then connected with the movable push plate 5 by thread. By rotating the fastening screw 6, the movable push plate 5 pushes the connecting lugs 2, thereby inserting the two adjacent PVC drain pipes together. This allows the two PVC drain pipes to be connected together with relatively little effort, and ensures a tight connection. The fastener can prevent leakage caused by the separation of the pipe bodies 1 due to excessive water pressure.

[0024] A sealing ring 7 is provided at the connection between two adjacent pipe bodies 1 to ensure the sealing of the plug. Furthermore, the structure of the plug connection between the two PCV pipes is existing technology and will not be described in detail here.

[0025] A fixing component is fitted on the outer wall of the adjacent pipe body 1 near the connection point. The fixing component includes an upper positioning sleeve 8 and a lower positioning sleeve 9. The cross-section of the upper positioning sleeve 8 and the lower positioning sleeve 9 is semi-circular. The end faces of the upper positioning sleeve 8 and the lower positioning sleeve 9 that are close to each other are provided with outwardly extending connecting protrusions 10. A U-shaped locking component 11 fixes the connecting protrusions 10 on the same side of the upper positioning sleeve 8 and the lower positioning sleeve 9. After the two pipes are inserted together, in order to ensure that the two pipe bodies 1 are always tightly connected, a fixing component is set. The fixing component includes an upper positioning sleeve 8 and a lower positioning sleeve 9. First, the lower positioning sleeve 9 is placed at the bottom of the pipe body 1. After the two pipe bodies 1 are inserted together by the fastening component, the upper positioning sleeve 8 and the lower positioning sleeve 9 are connected together, thereby ensuring the tightness of the connection between the two pipe bodies 1. Then the fastening component can be removed to facilitate the connection of the next set of pipe bodies 1.

[0026] The sidewalls of the U-shaped fastener 11 and the connecting protrusion 10 are both provided with reinforcing ribs 12, which increases the strength of the connection between the two tubes 1.

[0027] The inner walls of the upper positioning sleeve 8 and the lower positioning sleeve 9 are provided with several annular limiting protrusions 13. The outer walls of the adjacent pipe body 1 near the connection point are provided with positioning protrusions 14 that are staggered with the limiting protrusions 13. This can prevent leakage caused by the separation of the pipe bodies 1 due to excessive water pressure.

[0028] The tube body 1 includes an outer tube 101 and an inner tube 102. The outer tube 101 and the inner tube 102 are connected by several connecting keys 15 distributed circumferentially around the central axis of the tube body 1. The tube body 1 is divided into an outer tube 101 and an inner tube 102, which can play a role in noise reduction.

[0029] The movable push plate 5 is provided with a slider 16, and the connecting plate 3 is provided with a groove 17 that cooperates with the slider 16, so as to facilitate the movement of the movable push plate 5.

[0030] The end of the fastening screw 6 away from the movable push plate 5 is provided with a handle 18. The fastening screw 6 is rotated by rotating the handle 18, thereby moving the movable push plate 5.

[0031] The above embodiments are merely exemplary embodiments of the present utility model and are not intended to limit the present utility model. The scope of protection of the present utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present utility model within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present utility model.

Claims

1. A PVC drain pipe for municipal engineering sewerage pipeline, comprising a pipe body (1), characterized in that, Two connecting lug (2) are arranged on the end of the adjacent pipe body (1) near, the two connecting lug (2) are connected through fastening assembly, the fastening assembly includes connecting plate (3), the connecting plate (3) is equipped with fixed push plate (4) and movable push plate (5), the two connecting lug (2) are located between fixed push plate (4) and movable push plate (5), fastening screw (6) passes through fixed plate, two connecting lug (2) and movable push plate (5) in turn and is screw threadedly connected, the outer wall of the adjacent pipe body (1) near the junction is equipped with fixing piece.

2. A PVC drain pipe for municipal engineering sewerage according to claim 1, characterized in that, Two pipe bodies (1) junction is equipped with sealing ring (7).

3. A PVC drain pipe for municipal engineering sewerage according to claim 2, characterized in that, The fixing piece includes upper locating sleeve (8) and lower locating sleeve (9), the cross section of upper locating sleeve (8) and lower locating sleeve (9) is semicircular, the end face of upper locating sleeve (8) and lower locating sleeve (9) is equipped with the connecting protrusion (10) extending outward, U-shaped clamping part (11) is fixedly connected with the connecting protrusion (10) of the same side of upper locating sleeve (8) and lower locating sleeve (9).

4. A PVC drain pipe for municipal engineering sewerage according to claim 3, characterized in that, The side wall of U-shaped clamping part (11) and the side wall of connecting protrusion (10) are all equipped with reinforcing rib (12).

5. A PVC drain pipe for municipal engineering sewerage according to claim 4, characterized in that, The inner wall of upper locating sleeve (8) and lower locating sleeve (9) is all equipped with a plurality of annular limiting protrusion (13), the outer wall of the adjacent pipe body (1) near the junction is equipped with the positioning protrusion (14) staggered with limiting protrusion (13).

6. A PVC drain pipe for municipal engineering sewerage according to claim 5, characterized in that, The pipe body (1) includes outer tube (101) and inner tube (102), the outer tube (101) and inner tube (102) are connected through a plurality of connecting keys (15) distributed in the center axis of pipe body (1) as the center.

7. A PVC drain pipe for municipal engineering sewerage according to claim 6, characterized in that, The movable push plate (5) is equipped with sliding block (16), and the connecting plate (3) is equipped with sliding groove (17) matched with sliding block (16).

8. A PVC drain pipe for municipal engineering sewerage according to claim 7, characterized in that, The end of fastening screw (6) away from movable push plate (5) is equipped with handle (18).

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