Anti-seismic water supply and drainage pipeline joint structure

Abstract

The utility model discloses an anti-seismic water supply and drainage pipeline joint structure, and relates to the technical field of pipeline joints. The telescopic pipe comprises a left pipe body, a right pipe body and a telescopic pipe arranged between the left pipe body and the right pipe body, the telescopic pipe comprises a telescopic part and a connecting part, and the connecting part extends into inner cavities of the two pipe bodies and is fixedly connected with the two pipe bodies; a left mounting ring and a right mounting ring are respectively arranged at adjacent ports of the left pipe body and the right pipe body, a group of lantern rings are arranged on the opposite surfaces of the left mounting ring and the right mounting ring along the circumferential direction, and tension springs are hung between the lantern rings on the left mounting ring and the lantern rings on the right mounting ring at opposite positions. The two mounting rings are arranged at the joint of the two pipe bodies, and the group of tension springs are hung between the two mounting rings, so that when the pipe bodies are shocked, the telescopic pipe can be stretched to play a role in flexible shock absorption, and meanwhile, the tension springs can be unfolded along with the shock to limit the stretching of the telescopic pipe to a certain extent through the resilience force of the tension springs; and after the vibration is finished, the extension tube is pulled back and reset by the tension spring.

Description

Technical Field

[0001] This utility model relates to an earthquake-resistant water supply and drainage pipe joint structure, and pertains to the field of pipe joint technology. Background Technology

[0002] Underground pipeline systems are core infrastructure for information transmission in modern society, and their reliability during earthquakes directly impacts the lifeline of post-earthquake emergency command and rescue communications. Earthquake damage to underground pipelines primarily stems from violent ground movements, including soil displacement, shear deformation, and soil liquefaction. These forces can easily cause structural damage to the pipeline system. Currently, traditional underground pipeline systems generally use expandable corrugated pipes as joints for earthquake resistance. While corrugated pipes possess a certain degree of resilience, excessive earthquake amplitude can cause them to overstretch, reducing their resilience and preventing complete rebound. If the pipeline system experiences negative pressure due to water hammer, the thin-walled sections of the stretched corrugated pipe without steel ring reinforcement will experience inward suction and collapse, blocking water flow and even damaging the structure of the expandable section. Utility Model Content

[0003] The purpose of this utility model is to design an earthquake-resistant water supply and drainage pipe joint structure that can reset the telescopic pipe after being subjected to an earthquake.

[0004] This utility model includes a left tube body and a right tube body, and a telescopic tube disposed between the two tube bodies. The telescopic tube includes a telescopic part and a connecting part. The connecting part extends into the inner cavity of the two tube bodies and is fixedly connected to the two tube bodies. A left mounting ring and a right mounting ring are respectively provided at the adjacent ports of the left tube body and the right tube body. A set of collars is provided on the opposite surfaces of the left mounting ring and the right mounting ring along their circumferential direction. A tension spring is connected between the collar on the left mounting ring and the collar on the right mounting ring that is positioned opposite to it.

[0005] Furthermore, a left protective cover is provided on the outer periphery of the port of the left tube and screwed thereon, and a right protective cover is provided on the outer periphery of the port of the right tube and screwed thereon; the diameter of the right protective cover is smaller than the aperture of the left protective cover.

[0006] Furthermore, the left shield extends to the right shield side and covers the right shield.

[0007] Furthermore, a rubber ring is provided between the left and right protective covers, and the rubber ring is embedded in the outer peripheral surface of the right protective cover.

[0008] Furthermore, the left and right tube bodies are provided with limiting protrusions that are fixedly connected to or integrally formed with them, and a sealing ring is provided between the limiting protrusions and the connection part of the telescopic tube.

[0009] This invention features a left mounting ring and a right mounting ring at the interface of the two tubes, with a tension spring attached between the two mounting rings. When the tube is subjected to vibration, the telescopic tube will be stretched, providing a flexible shock absorption effect. Simultaneously, the tension spring will unfold with the vibration, using its own rebound force to limit the stretching of the telescopic tube and prevent overstretching. After the vibration ends, the tension spring will pull the telescopic tube back to its original position, keeping it in a contracted state and preventing it from collapsing due to negative pressure.

[0010] This utility model is equipped with a left protective cover and a right protective cover. When this application is used in an underground enclosed structure, the two protective covers can isolate the connecting parts such as tension springs and telescopic tubes from the outside world, thus extending the service life of the connecting parts. A rubber ring is provided between the left and right protective covers. When subjected to vibration, a certain displacement space can be maintained between the two protective covers through the rubber ring, allowing the two protective covers to swing with the vibration, avoiding affecting the shock absorption effect of the tension spring, while ensuring the sealing of the tension spring. Attached Figure Description

[0011] Figure 1 This is a front sectional view of an embodiment of the present utility model;

[0012] Figure 2 for Figure 1 A cross-sectional view along the AA direction;

[0013] Figure 3 for Figure 1 A magnified view of a section at point B in the middle;

[0014] Figure 4 This is a front view of an embodiment of the present invention with the protective cover removed;

[0015] The components are: 1. Left tube body, 2. Right tube body, 3. Telescopic tube, 4. Limiting protrusion, 5. Sealing ring, 6. Left mounting ring, 7. Collar, 8. Tension spring, 9. Left protective cover, 10. Right protective cover, 11. Rubber ring, 12. Right mounting ring. Detailed Implementation

[0016] by Figure 1 Define the up, down, left, right, front, and back directions in this embodiment.

[0017] As shown in the figure, this embodiment includes a left pipe body 1 and a right pipe body 2, with a telescopic pipe 3 installed at the interface between the two pipe bodies. The telescopic pipe 3 includes a connecting part and a telescopic part. The connecting part of the telescopic pipe 3 extends to the left and right sides into the inner cavities of the two pipe bodies and is connected to the inner walls of the two pipe bodies by threads. A sealing mechanism is provided at the thread termination line on the inner wall of the left pipe body 1 and the right pipe body 2. The sealing mechanism includes a limiting protrusion 4, which is annular and is fixedly installed on the inner wall of the left pipe body 1 and the right pipe body 2 by adhesive bonding. A sealing ring 5 is provided on the side of each limiting protrusion 4 facing the telescopic pipe 3. In use, the sealing ring 5 is placed between the limiting protrusion 4 and the telescopic pipe 3, and the telescopic pipe 3 is screwed on and clamped to fix the sealing ring 5. The other side of each limiting protrusion 4 is a tapered hole that gradually expands outward, so that there is a transition range between each limiting protrusion 4 and the inner wall of the two pipe bodies, so as to avoid the accumulation of impurities in the pipeline at the limiting protrusion 4 and blockage of the pipeline during later use. The telescopic part of the telescopic pipe 3 adopts a corrugated pipe structure, which can absorb vibration and compensate for displacement during the vibration process; in this embodiment, the telescopic part of the telescopic pipe 3 is an existing structure, and will not be described in detail here.

[0018] External threads are formed on the outer circumferential surfaces of the opposite ends of the left tube 1 and the right tube 2, and a left mounting ring 6 and a right mounting ring 12 are screwed onto the left tube 1 and the right tube 2, respectively. A set of collars 7 are provided on the surface of the opposite side of the left mounting ring 6 and the right mounting ring 12. In this embodiment, four collars 7 are provided on one mounting ring, and the collars 7 are equidistantly distributed along the circumference of the mounting ring. The positions of the collars 7 on the left mounting ring 6 and the right mounting ring 12 correspond to each other. A set of tension springs 8 is provided between the left mounting ring 6 and the right mounting ring 12. In this embodiment, four tension springs 8 are provided, and each tension spring 8 has hooks at both ends, which are respectively hooked onto the corresponding collars 7 on the left and right sides.

[0019] On opposite sides of the left mounting ring 6 and the right mounting ring 12, there are protective cover structures that screw onto the left tube body 1 and the right tube body 2, respectively. The left protective cover 9 is screwed onto the outer circumference of the left tube body 1 near its port, and the right protective cover 10 is screwed onto the outer circumference of the right tube body 2 near its port. In this embodiment, the diameter of the right protective cover 10 is smaller than the aperture of the left protective cover 9, and the left protective cover 9 extends to the right, covering the outer circumference of the right protective cover 10. An annular groove is formed on the left outer circumference of the right protective cover 10, and a rubber ring 11 is placed in the groove. The rubber ring 11 is installed in the groove of the right protective cover 10 by its own elasticity. In practical applications, adhesive can be applied to the groove to ensure the rubber ring 11 is fixed. The outer side of the rubber ring 11 fits against the inner wall of the left protective cover 9. After the left protective cover 9 is installed in place and covers the right protective cover 10, the rubber ring 11 can isolate external impurities and prevent contact with the tension springs 8, thus providing a sealing and protective function and improving the service life of the tension springs 8. When the pipe joint is vibrated, the two protective covers can retain a certain displacement space through the rubber ring 11, swinging with the vibration shape to avoid affecting the shock absorption effect of the internal expansion tube 3.

[0020] In this embodiment, the telescopic tube 3 can be made of plastic, rubber or metal corrugated pipe.

[0021] In this embodiment, during installation, firstly, the left protective cover 9 and the right protective cover 10 are screwed onto the outer periphery of the left pipe body 1 and the right pipe body 2, and the left protective cover 9 is moved to the left to avoid obstructing the pipe interface. The left mounting ring 6 and the right mounting ring 12 are screwed onto the opposite ends of the two pipe bodies, and sealing rings 5 ​​are placed in the inner cavities of the two pipe bodies respectively. After completion, the connecting parts at both ends of the telescopic tube 3 are screwed into the inner cavities of the two pipe bodies in sequence, and the sealing rings 5 ​​are fixed by compression. Then, the two mounting rings are rotated so that the sleeves 7 on the left and right sides are aligned, and tension springs 8 are hung on the opposite sleeves 7. After completion, the left protective cover 9 is rotated so that it moves to the right until it covers the right protective cover 10. At this time, the inner wall of the left protective cover 9 is in contact with the rubber ring 11, completing the installation of the joint.

[0022] When the pipe joint is subjected to vibration, the telescopic tube 3 will extend and deform with the vibration to absorb the vibration. The two protective covers can swing by squeezing the rubber ring 11. At the same time, the tension spring 8 will unfold with the vibration and limit the stretching of the telescopic tube 3 with its own rebound force to avoid excessive stretching. After the vibration ends, the tension spring 8 will pull the telescopic tube 3 back to its original position, so that the telescopic tube 3 remains in a contracted state, avoiding the effects of negative pressure during daily use and preventing phenomena such as collapse.

Claims

1. A seismic-resistant water supply and drainage pipe joint structure, comprising a left pipe body, a right pipe body, and a telescopic pipe disposed between the two pipe bodies, characterized in that: The telescopic tube includes a telescopic part and a connecting part. The connecting part extends into the inner cavity of the two tube bodies and is fixedly connected to the two tube bodies. A left mounting ring and a right mounting ring are respectively provided at the adjacent ports of the left and right tube bodies. A set of collars is provided on the opposite surfaces of the left and right mounting rings along their circumference. A tension spring is connected between the collar on the left mounting ring and the collar on the right mounting ring that is positioned opposite to it.

2. The seismic-resistant water supply and drainage pipe joint structure according to claim 1, characterized in that: A left protective cover is provided on the outer periphery of the port of the left tube and screwed to it, and a right protective cover is provided on the outer periphery of the port of the right tube and screwed to it; the diameter of the right protective cover is smaller than the aperture of the left protective cover.

3. The seismic-resistant water supply and drainage pipe joint structure according to claim 2, characterized in that: The left shield extends to the right shield side and covers the right shield.

4. The seismic-resistant water supply and drainage pipe joint structure according to claim 3, characterized in that: A rubber ring is provided between the left and right protective covers, and the rubber ring is embedded in the outer peripheral surface of the right protective cover.

5. The seismic-resistant water supply and drainage pipe joint structure according to claim 1, 2, 3, or 4, characterized in that: The left and right tube bodies are provided with limiting protrusions that are fixedly connected to or integrally formed with them, and a sealing ring is provided between the limiting protrusions and the connection part of the telescopic tube.

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