A joint for old district water supply pipeline reconstruction

Abstract

The utility model discloses an old community water supply pipeline reconstruction joint, including two petal connector main part, two petal connector main part fixed butt joint into the ring, connect in the connecting place of two adjacent water pipe, be equipped with an installation slot on the connector main part upper and lower sides, the movable arrangement of widening assembly is in the installation slot, two widening assembly are by buckling assembly and are assisted in the connector main part telescopic. The joint passes through adjustable widening assembly, convenient buckling locking mechanism and auxiliary limiting component design, the adaptability of different water pressure impact has been improved significantly, and the installation is convenient, and the connection is stable, and the reconstruction cost is reduced effectively, and the construction period is shortened and guarantees the long -term stable operation of water supply system.

Description

Technical Field

[0001] This utility model relates to the technical field of connectors for water supply pipeline renovation, specifically to a connector for renovating water supply pipelines in old residential areas. Background Technology

[0002] With the continuous development of urban construction, water supply pipelines in old residential areas generally suffer from problems such as aging, corrosion, and leakage due to long-term use. This not only wastes water resources but also affects residents' normal water use. Therefore, renovating water supply pipelines in old residential areas has become an important measure to ensure urban water supply security and residents' quality of life. In water supply pipeline renovation projects, connectors, as key devices connecting water pipes, directly affect the stability and reliability of the entire water supply system due to their performance.

[0003] Existing water supply pipe renovation connectors typically involve aligning two water pipes, placing the connector on the joint surface, and then securing it to the pipe surface with bolts and nuts. This connection method meets basic connection requirements to a certain extent, is relatively simple to operate, and has controllable installation costs. However, in actual use, this type of connector has significant limitations. Due to the limited width of the connector itself, in older residential water supply systems, when the pipe connection is subjected to significant water pressure, especially during peak water usage periods or changes in pump start-up and shutdown, the friction between the connector and the pipe connection is insufficient to resist the force generated by the water pressure, causing the connector to easily shift at the pipe connection. Once the connector shifts, gaps appear in the originally tight connection structure, reducing the connection's strength and causing leaks. Leaks not only waste water resources but can also damage the building structure of older residential areas, leading to a series of problems such as wall seepage and foundation settlement. Furthermore, frequent leak repairs increase property management costs and inconvenience residents. Therefore, there is an urgent need to design a connector for the renovation of water supply pipelines in old residential areas that can effectively cope with high water pressure conditions and ensure connection stability, so as to overcome the shortcomings of existing technologies. Utility Model Content

[0004] The purpose of this utility model is to provide a connector for the renovation of water supply pipelines in old residential areas. This connector solves the problem of unstable connection caused by changes in water pressure during the renovation of old residential areas.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A connector for the renovation of water supply pipes in old residential areas includes two main connector bodies. The two main connector bodies are fixedly joined together to form a ring shape and connected at the junction of two adjacent water pipes. An installation groove is provided on both the upper and lower sides of the main connector bodies. Widening components are movably arranged in the installation grooves. The two widening components are assisted by a fastening component to extend and retract within the main connector bodies.

[0007] Preferably, the widening component includes multiple first guide rods, a first spring, and an arc plate. Multiple first guide holes are evenly spaced at the bottom of the arc plate. Multiple first guide rods are evenly spaced at the bottom of the mounting groove. The first guide rods are slidably connected to the first guide holes. A first spring is sleeved on the first guide rod. The bottom end of the first spring is fixedly connected to the mounting groove, and the top end is fixedly connected to the bottom surface of the arc plate. A first rubber plate is laterally arranged on the top of the arc plate.

[0008] Preferably, the inner wall of the mounting groove is lower than the outer wall of the mounting groove. When the arc plate retracts into the mounting groove, the first rubber plate abuts against the top of the inner wall of the mounting groove and is still lower than the top of the outer wall of the mounting groove.

[0009] Preferably, the fastening assembly includes a U-shaped plate, a second guide rod, and a second spring. The U-shaped plate is vertically connected to the outer wall of the connector body via the second guide rod and the second spring. A second rubber plate is vertically arranged at both the top and bottom of the U-shaped plate. A second guide hole is provided in the middle of the U-shaped plate. One end of the second guide rod is fixedly arranged in the middle of the outer wall of the connector body and slidably connected to the second guide hole. A second spring is sleeved on the second guide rod. One end of the second spring is fixedly connected to the outer wall of the connector body, and the other end is fixedly connected to the U-shaped plate.

[0010] Preferably, the top of the U-shaped plate is 7-8mm higher than the top surface of the mounting groove and the bottom is 7-8mm lower than the bottom surface of the mounting groove. The bottom surface of the second rubber plate at the top of the U-shaped plate is 6-7mm lower than the top surface of the mounting groove, and the top surface of the second rubber plate at the bottom of the U-shaped plate is 6-7mm higher than the bottom surface of the mounting groove. The thickness of the second rubber plate is 5mm.

[0011] Preferably, the other end of the second guide rod is provided with a threaded section, which passes through the second guide hole and is threaded with a nut. When the arc plate retracts into the mounting groove, the U-shaped plate is moved laterally until both second rubber plates squeeze through the top and bottom surfaces of the U-shaped plate and enter the mounting groove. The two second rubber plates abut against the top of the two first rubber plates respectively, and the nuts are tightened to press and fix the U-shaped plate.

[0012] Preferably, the other end of the second guide rod is provided with a threaded section, which passes through the second guide hole and is threadedly connected to a nut. When the arc plate retracts into the mounting groove, the U-shaped plate is moved laterally until the second rubber plate abuts against the top of the first rubber plate, and the second rubber plate is located in the mounting groove. The nut is then tightened to fix the U-shaped plate.

[0013] Preferably, when both the first spring and the second spring are in their original length state, the arc plate extends out of the mounting groove.

[0014] Preferably, the two-part connector body is connected by a limiting component. The limiting component includes a connecting plate, a rotating rod, and a third rubber plate. The bottom end of the rotating rod is hinged to the connection point of one-part connector body. A connecting plate is cantilevered at the top end of the rotating rod. A third rubber plate is vertically arranged at the cantilever end of the connecting plate. A positioning groove is provided on the other-part connector body. The third rubber plate is adapted to the positioning groove.

[0015] Preferably, a rubber strip is provided on the inner wall of the connector body.

[0016] In this utility model, the design of adjustable widening components, convenient fastening and locking mechanism and auxiliary limiting components significantly improves the adaptability to different water pressure impacts, makes installation convenient and connection stable, effectively reduces the transformation cost, shortens the construction period and ensures the long-term stable operation of the water supply system.

[0017] When using the widened component, slide the arc plate out of the mounting groove. This increases the width of the connector body to a certain extent, allowing the joint to automatically adapt to different water pressure impacts on the pipe. When the water pressure impact is small, the arc plate is pressed into the mounting groove; when the water pressure impact is large, the spring returns and pushes the arc plate out, ensuring that the inner wall of the arc plate always fits tightly against the outer wall of the pipe.

[0018] The two-part connector is connected by bolts, which can be quickly fitted onto the pipe interface to be connected and closed, greatly simplifying the installation operation in narrow spaces or on existing pipes, and is especially suitable for the site environment of old community renovation.

[0019] The limiting component can pre-align and temporarily fix the two connector bodies before the bolts are tightened, preventing misalignment, significantly improving closing efficiency and connection accuracy, and reducing the manpower and time required for installation.

[0020] The first and second springs not only provide elastic force, but also absorb vibrations and impacts of the piping system, reduce stress concentration, and protect the joint structure and pipe connections.

[0021] The rubber strip on the inner wall of the connector body provides a basic seal.

[0022] The second rubber plate acts as a locking mechanism when it is pressed against the first rubber plate. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a cross-sectional view of the present invention;

[0025] Figure 3 This is a partially enlarged schematic diagram of section A of this utility model;

[0026] Figure 4 This is a schematic diagram of part of the structure of this utility model;

[0027] In the diagram: 1. Connector body; 2. Widening component; 3. Fastening component; 4. Limiting component; 5. Rubber strip; 10. Mounting groove; 20. First guide rod; 21. First spring; 22. Arc plate; 23. First guide hole; 24. First rubber plate; 30. U-shaped plate; 31. Second guide rod; 32. Second spring; 33. Second guide hole; 34. Second rubber plate; 40. Connecting plate; 41. Rotating rod; 42. Third rubber plate; 43. Positioning groove. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings:

[0029] like Figures 1-4 The diagram shows a connector for renovating water supply pipes in an old residential area, comprising two connector bodies 1. The two connector bodies 1 are fixedly joined together in a circular shape and connected at the junction of two adjacent water pipes. A rubber strip 5 is provided on the inner wall of the connector body 1. Specifically, the joint of the two connector bodies 1 is connected by bolts and nuts.

[0030] A mounting groove 10 is provided on both the upper and lower sides of the connector body 1, and a widening component 2 can be movably arranged in the mounting groove 10.

[0031] The widening component 2 includes multiple first guide rods 20, a first spring 21, and an arc plate 22. Multiple first guide holes 23 are evenly spaced at the bottom of the arc plate 22. Multiple first guide rods 20 are evenly spaced at the bottom of the mounting groove 10, and the first guide rods 20 are slidably connected to the first guide holes 23. A first spring 21 is sleeved on each first guide rod 20, with its bottom end fixedly connected to the mounting groove 10 and its top end fixedly connected to the bottom surface of the arc plate 22. A first rubber plate 24 is laterally arranged on the top of the arc plate 22.

[0032] The inner wall of the mounting groove 10 is lower than the outer wall of the mounting groove. When the arc plate 22 retracts into the mounting groove 10, the first rubber plate 24 abuts against the top of the inner wall of the mounting groove and is still lower than the top of the outer wall of the mounting groove. In this example, the first rubber plate 24 is made of natural rubber or synthetic rubber and has a certain degree of elasticity.

[0033] The two widening components 2 extend and retract within the connector body 1 with the assistance of the fastening component 3.

[0034] The fastening assembly 3 includes a U-shaped plate 30, a second guide rod 31, and a second spring 32. The U-shaped plate 30 is vertically connected to the outer wall of the connector body 1 via the second guide rod 31 and the second spring 32. A second rubber plate 34 is vertically arranged at both the top and bottom of the U-shaped plate 30. A second guide hole 33 is provided in the middle of the U-shaped plate 30. One end of the second guide rod 31 is fixedly arranged in the middle of the outer wall of the connector body 1 and slidably connected to the second guide hole 33. The second spring 32 is sleeved on the second guide rod 31. One end of the second spring 32 is fixedly connected to the outer wall of the connector body 1, and the other end is fixedly connected to the U-shaped plate 30.

[0035] The top of the U-shaped plate 30 is 7-8 mm higher than the top surface of the mounting groove 10, and the bottom is 7-8 mm lower than the bottom surface of the mounting groove 10. The bottom surface of the second rubber plate 34, located at the top of the U-shaped plate 30, is 6-7 mm lower than the top surface of the mounting groove 10, and the top surface of the second rubber plate 34, located at the bottom of the U-shaped plate 30, is 6-7 mm higher than the bottom surface of the mounting groove 10. The thickness of the second rubber plate 34 is 5 mm. The other end of the second guide rod 31 is provided with a threaded section, which passes through the second guide hole 33 and is threaded with a nut. When the arc plate 22 retracts into the mounting groove 10, the U-shaped plate 30 is moved laterally until both second rubber plates 34 are squeezed through the top and bottom surfaces of the U-shaped plate 30 and enter the mounting groove 10. The two second rubber plates 34 abut against the tops of the two first rubber plates 24 respectively. The nuts are tightened to press and fix the U-shaped plate 30. After the nuts are locked, a double constraint is formed. In this example, the second rubber plate 34 is made of natural rubber or synthetic rubber and has a certain degree of elasticity.

[0036] The two-part connector body 1 is connected by a limiting component 4. The limiting component 4 includes a connecting plate 40, a rotating rod 41, and a third rubber plate 42. The bottom end of the rotating rod 41 is hinged to the connection point of one-part connector body 1. The connecting plate 40 is cantilevered at the top end of the rotating rod 41, and the third rubber plate 42 is vertically arranged at the cantilever end of the connecting plate 40. A positioning groove 43 is formed on the other-part connector body 1, and the third rubber plate 42 is adapted to the positioning groove 43. Before the two-part connector body 1 is fixedly connected, the rotating rod 42 is rotated until the third rubber plate 42 is engaged in the positioning groove 43. In this example, the second rubber plate 34 is made of natural rubber or synthetic rubber and has a certain degree of elasticity.

[0037] When both the first spring 21 and the second spring 32 are in their original length state, the arc plate 22 extends out of the mounting groove 10.

[0038] The working principle is as follows: When using the connector, first align the two pipes, then install the connector at the connection point of the two pipes. When using the widening component, the first guide hole slides along the first guide rod due to the reset action of the first spring, causing the arc plate to slide out of the mounting groove and pressing the first rubber plate against the surface of the water pipe, thereby increasing the width of the connector body 1 to a certain extent. When not using the widening component, press the arc plate into the mounting groove, compress the first spring, and move the U-shaped plate laterally until the second rubber plate abuts against the top of the first rubber plate, with the second rubber plate located in the mounting groove. Tighten the nut to fix the U-shaped plate; after the nut is locked, a double constraint is formed.

[0039] When using the limiting component, rotate the rotating rod until the third rubber plate is inserted into the positioning groove, which facilitates the subsequent temporary fixing of the connector body to the pipe connection with bolts and nuts, and then connecting the two connector bodies with bolts and nuts.

[0040] The above embodiments are merely illustrative of the concept and implementation of this utility model, and are not intended to limit it. Under the concept of this utility model, the technical solutions without substantial changes are still within the scope of protection.

Claims

1. A connector for renovating water supply pipes in old residential areas, characterized in that: It includes two-lobed connector bodies (1), which are fixedly joined together to form a ring and connected to the connection of two adjacent water pipes. An installation groove (10) is provided on both the upper and lower sides of the connector body (1). A widening component (2) is movably arranged in the installation groove (10). The two widening components (2) are assisted by a fastening component (3) to extend and retract within the connector body (1).

2. The connector for the renovation of water supply pipelines in old residential areas according to claim 1, characterized in that: The widening component (2) includes multiple first guide rods (20), a first spring (21), and an arc plate (22). Multiple first guide holes (23) are evenly spaced at the bottom of the arc plate (22). Multiple first guide rods (20) are evenly spaced at the bottom of the mounting groove (10). The first guide rods (20) are slidably connected to the first guide holes (23). A first spring (21) is sleeved on the first guide rod (20). The bottom end of the first spring (21) is fixedly connected to the mounting groove (10), and the top end is fixedly connected to the bottom surface of the arc plate (22). A first rubber plate (24) is horizontally arranged on the top of the arc plate (22).

3. The connector for the renovation of water supply pipelines in old residential areas according to claim 2, characterized in that: The inner wall of the mounting groove (10) is lower than the outer wall of the mounting groove (10). When the arc plate (22) retracts into the mounting groove (10), the first rubber plate (24) abuts against the top of the inner wall of the mounting groove (10) and is still lower than the top of the outer wall of the mounting groove (10).

4. The connector for the renovation of water supply pipelines in old residential areas according to claim 3, characterized in that: The fastening assembly (3) includes a U-shaped plate (30), a second guide rod (31), and a second spring (32). The U-shaped plate (30) is vertically connected to the outer wall of the connector body (1) through the second guide rod (31) and the second spring (32). A second rubber plate (34) is vertically set at both the top and bottom of the U-shaped plate (30). A second guide hole (33) is opened in the middle of the U-shaped plate (30). One end of the second guide rod (31) is fixedly set in the middle of the outer wall of the connector body (1) and is slidably connected to the second guide hole (33). A second spring (32) is sleeved on the second guide rod (31). One end of the second spring (32) is fixedly connected to the outer wall of the connector body (1) and the other end is fixedly connected to the U-shaped plate (30).

5. The connector for the renovation of water supply pipelines in old residential areas according to claim 4, characterized in that: The top of the U-shaped plate (30) is 7-8 mm higher than the top surface of the mounting groove (10), and the bottom is 7-8 mm lower than the bottom surface of the mounting groove (10). The bottom surface of the second rubber plate (34) set at the top of the U-shaped plate (30) is 6-7 mm lower than the top surface of the mounting groove (10), and the top surface of the second rubber plate (34) set at the bottom of the U-shaped plate (30) is 6-7 mm higher than the bottom surface of the mounting groove (10). The thickness of the second rubber plate (34) is 5 mm.

6. The connector for the renovation of water supply pipelines in old residential areas according to claim 4 or 5, characterized in that: The other end of the second guide rod (31) is provided with a threaded section, which passes through the second guide hole (33) and is threaded with a nut. When the arc plate (22) retracts into the mounting groove (10), the U-shaped plate (30) is moved laterally until the two second rubber plates (34) squeeze through the top and bottom surfaces of the U-shaped plate (30) and enter the mounting groove (10). The two second rubber plates (34) abut against the top of the two first rubber plates (24) respectively, and the nuts are tightened to press and fix the U-shaped plate (30).

7. The connector for the renovation of water supply pipelines in old residential areas according to claim 4, characterized in that: When both the first spring (21) and the second spring (32) are in their original length state, the arc plate (22) extends out of the mounting groove (10).

8. The connector for the renovation of water supply pipelines in old residential areas according to claim 1, characterized in that: The two-part connector body (1) is connected by a limiting component (4). The limiting component (4) includes a connecting plate (40), a rotating rod (41), and a third rubber plate (42). The bottom end of the rotating rod (41) is hinged to the connection point of one-part connector body (1). A connecting plate (40) is cantilevered at the top end of the rotating rod (41). A third rubber plate (42) is vertically arranged at the cantilever end of the connecting plate (40). A positioning groove (43) is opened on the other-part connector body (1). The third rubber plate (42) is adapted to the positioning groove (43).

9. The connector for the renovation of water supply pipelines in old residential areas according to claim 1, characterized in that: A rubber strip (5) is provided on the inner wall of the connector body (1).

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