Self-sealing water service pipe coupling

Abstract

The application provides a self-sealing water pipeline interface, and relates to the field of water pipelines.The self-sealing water pipeline interface comprises a pipeline A and a pipeline B, the ends of the pipeline A and the pipeline B close to each other are respectively fixedly connected with a connecting head A and a connecting head B, the connecting head A is in sliding connection with the connecting head B, the outer surface of the connecting head B is in sliding connection with a detachable connecting head C, and the outer surface of the connecting head B is provided with an annular groove; when the connecting head A and the connecting head B are in butt joint, under the action of a spring, when the arc-shaped plate moves in the direction close to the connecting head A under force, the arc-shaped plate will extrude a sealing gasket A and be clamped at the groove, which can realize sealing and automatic locking on the one hand, extrude a sealing gasket B between the connecting head A and a fixing ring, and a plurality of arc-shaped plates form annular extrusion points on the sealing gasket A, so that water leakage is prevented and automatic sealing is realized, and the dismounting process is convenient, fast, time-saving and labor-saving.

Description

Technical Field

[0001] This invention relates to the field of water pipelines, specifically a self-sealing water pipeline interface. Background Technology

[0002] Water pipes are mainly used to transport domestic water, industrial water, and sewage. Domestic water pipes must ensure water quality safety and meet drinking water hygiene standards. The environmental protection and safety requirements for pipe materials are extremely high. During installation, factors such as topography, pipe burial depth, and distance from other underground pipelines need to be considered. Water pipe interfaces are the parts that connect two sections of water pipes. Good interfaces can effectively prevent water leakage and ensure the stability and reliability of water supply.

[0003] Traditional water pipe interface installation typically requires a significant amount of manpower and time. For example, the interface requires accurately inserting the pipe spigot into the socket, then fixing and sealing it. Flange interfaces require multiple steps such as welding the flange, installing the gasket, and tightening the bolts, making the operation cumbersome and the installation inefficient. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a self-sealing water pipe interface, which solves the problems of cumbersome operation and low installation efficiency in the aforementioned background technologies.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a self-sealing water pipe interface, comprising pipe A and pipe B, wherein connector A and connector B are fixedly connected to the ends of pipe A and pipe B respectively, which are close to each other, connector A and connector B are slidably connected, and a detachable connector C is slidably connected to the outer surface of connector B, wherein an annular groove is formed on the outer surface of connector B, and a sealing gasket A is fixedly connected inside the groove, wherein a folding sealing gasket B is fixedly connected to the end of sealing gasket A near connector A, and sealing gasket B is in contact with connector A, wherein an elastic component for providing thrust is installed between connector B and connector A, and a plurality of sealing components for compressing the sealing gasket are installed inside connector C, wherein the plurality of sealing components are used to form an annular surrounding structure.

[0006] Preferably, there is a gap between connector C and connector A, and the end of sealing gasket A near connector A is located in the gap.

[0007] Preferably, the connector C includes a housing and a retaining ring, and the housing and the retaining ring are fixed together by a number of bolts.

[0008] Preferably, the two sides of the sealing gasket B are in close contact with the connector A and the outer shell, respectively.

[0009] Preferably, the elastic component includes a spring and a pusher, the pusher being slidably connected to the connector B, and the connector A having an annular groove inside, with one end of the pusher being slidably connected to the groove.

[0010] Preferably, the sealing assembly includes a fixing member, a protrusion, and an arc-shaped plate. The fixing member is fixedly connected to the inner wall of the housing, the protrusion is elastically hinged to the fixing member and fixedly connected to the arc-shaped plate, and there is tight contact between every two arc-shaped plates.

[0011] Preferably, the cross-section of the arc-shaped plate is arc-shaped, and the end of the arc-shaped plate that contacts the sealing gasket is rounded.

[0012] Compared with the prior art, the present invention has the following beneficial effects: When connector A and connector B are connected, under the action of the spring, when the arc plate is moved towards connector A, the arc plate will squeeze the sealing gasket A and lock it in the groove. On the one hand, it can achieve sealing, and on the other hand, it can play an automatic locking role. The sealing gasket B is squeezed between connector A and the fixing ring, and several arc plates form a ring-shaped squeezing point on the sealing gasket A to prevent moisture leakage and play an automatic sealing role. The disassembly and assembly process is convenient and quick, saving time and effort. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of pipe A and pipe B of the present invention;

[0014] Figure 2 This is a sectional view of the front view of pipe A and pipe B of the present invention;

[0015] Figure 3 This is a schematic diagram of the sealing assembly structure of the present invention;

[0016] Figure 4 This is a schematic diagram of the annular structure of the sealing assembly of the present invention;

[0017] Figure 5 This is a schematic diagram of the connector B structure of the present invention;

[0018] Figure 6 This is a cross-sectional view of the structural schematic diagram of sealing gasket A and sealing gasket B of the present invention;

[0019] Figure 7 This is a cross-sectional view of the structure of the sealing gasket B after it has been folded up according to the present invention.

[0020] Wherein: 1. Pipe A; 2. Pipe B; 3. Connector A; 4. Connector B; 5. Connector C; 501. Outer shell; 502. Retaining ring; 6. Groove; 7. Sealing gasket A; 8. Sealing gasket B; 9. Sealing assembly; 901. Fixing element; 902. Protrusion; 903. Arc plate; 10. Spring; 11. Pushing element. Detailed Implementation

[0021] like Figures 1-7 As shown, a self-sealing water pipe interface includes pipe A1 and pipe B2. Connector A3 and connector B4 are fixedly connected to the adjacent ends of pipes A1 and B2, respectively. Connector A3 and connector B4 are slidably connected. A detachable connector C5 is slidably connected to the outer surface of connector B4. Connector C5 includes a housing 501 and a retaining ring 502. The housing 501 and retaining ring 502 are fixed together by several bolts. An annular groove 6 is formed on the outer surface of connector B4, and a sealing device is fixedly connected inside the groove 6. A gap exists between gasket A7, connector C5, and connector A3. One end of gasket A7 near connector A3 is located within this gap. A folding gasket B8 is fixedly connected to the end of gasket A7 near connector A3. Both gaskets A7 and B8 are made of soft material. The two sides of gasket B8 are in close contact with connector A3 and housing 501, respectively. Gasket B8 is in contact with connector A3. An elastic component for providing thrust is installed between connector B4 and connector A3. The elastic component includes a spring 10 and a pusher. The moving part 11 and the pushing part 11 are slidably connected to the connector B4. The connector A3 has an annular groove inside. One end of the pushing part 11 is slidably connected to the groove, and the pushing part 11 can be disengaged from the groove for easy disassembly. When the pushing part 11 is in the groove, its stability is improved. The spring 10 is in a compressed state, which facilitates the provision of thrust to the pushing part 11, thereby providing a force to move the connector A3 and connector B4 away from each other, achieving the purpose of automatic sealing. The connector C5 has several compression sealing devices installed inside. The sealing assembly 9 of the gasket consists of several sealing assemblies 9 forming an annular surrounding structure. The sealing assembly 9 includes a fixing member 901, a protrusion 902, and an arc plate 903. The fixing member 901 is fixedly connected to the inner wall of the outer shell 501. The protrusion 902 is elastically hinged to the fixing member 901 and fixedly connected to the arc plate 903. There is tight contact between every two arc plates 903. The cross-section of the arc plate 903 is arc-shaped. The end of the arc plate 903 that contacts the sealing gasket is rounded to reduce the probability of damage when the sealing gasket A7 is squeezed.

[0022] Working principle:

[0023] During installation, connectors A3 and B4 need to be aligned. First, insert one end of the pusher 11 into connector A3, pushing connector A3 along the inner wall of connector B4. Connector A3 can push the pusher 11 to move stably, and the pusher 11 begins to compress the spring 10. At this time, the spring 10 is in a compressed state. It should be noted that the sealing gasket B8 needs to be folded outward at this time. Figure 7As shown, fold the sealing gasket B8 over the sealing gasket A7. Because the material of sealing gasket B8 is relatively soft, folding it is relatively easy. The folded sealing gasket B8 provides sufficient space for the movement of connector A3, preventing connector A3 from squeezing the sealing gasket B8 during movement. When connector A3 moves towards connector B4 to its maximum stroke, connector A3 and connector B4 are completely fitted together. Then, as... Figure 2 and Figure 6 As shown, fold the sealing gasket B8 back to its original position, at which point the sealing gasket B8 is in contact with the connector A3; then, use bolts to pre-fix the retaining ring 502 to the outer shell 501, and then fit the outer shell 501 onto the outer surface of the connector B4. The outer shell 501 should move from the position near the connector A3 towards the position of the connector B4. During this process, several arc-shaped plates 903 will preferentially touch the sealing gasket B8. Since the sealing gasket B8 is in contact with the connector A3, the connector A3 can provide a support point for the arc-shaped plates 903 and cause the arc-shaped plates 903 to rotate. After rotation, the arc-shaped plates 903 continue to move along the left end of the sealing gasket A7. The spring 10 reaches the groove 6. Since the outer shell 501 is fixed to the fixing ring 502, the two can move synchronously until the fixing ring 502 moves to fit the sealing gasket B8, at which point the movement stops. At this time, the elastic deformation force of the spring 10 causes the two ends of the spring 10 to apply opposite thrusts to the connector B4 and the pusher 11 respectively. The pusher 11 drives the connector A3 to squeeze the sealing gasket B8. This squeezing force is transmitted to the outer shell 501 of the connector C5, causing the outer shell 501 to drive several sealing components 9 to move closer to the inner wall of the groove 6. At this time, several arc-shaped plates 903 should squeeze towards the inner wall of the groove 6. The sealing gasket A7, and the annular ring formed by the closing of several arc-shaped plates 903, can create an annular compression point on the sealing gasket A7, thereby achieving an automatic sealing effect. Installation is quick and saves time and effort. It should be noted that because the arc-shaped plates 903 are arc-shaped, when they are subjected to force and move towards the connector A3, they will compress the sealing gasket A7 and lock it in the groove 6, achieving both sealing and automatic locking. When the water pressure flowing from pipes A1 and B2 increases, some water will flow along the gap between connectors A3 and B4. The water flows and reaches the inside of the sealing gasket A7. Some of the water that reaches the inside of the sealing gasket A7 tends to flow along the connector A3, while the other part tends to move along the connector B4. Under the action of the spring 10, the sealing gasket B8 is squeezed between the connector A3 and the fixing ring 502, and several arc-shaped plates 903 form annular compression points on the sealing gasket A7 to prevent water leakage and play an automatic sealing role. When disassembly is required, simply remove the bolts connecting the outer shell 501 and the fixing ring 502, and push the outer shell 501 towards the pipe B2. The disassembly work is convenient and quick.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-sealing water pipe interface, comprising pipe A (1) and pipe B (2), characterized in that: The pipes A (1) and B (2) are respectively fixedly connected to connector A (3) and connector B (4) at their close ends. Connector A (3) and connector B (4) are slidably connected. Connector B (4) is slidably connected to a detachable connector C (5). Connector B (4) has an annular groove (6) on its outer surface. A sealing gasket A (7) is fixedly connected inside the groove (6). A sealing gasket B (8) for folding is fixedly connected to the end of sealing gasket A (7) near connector A (3). Sealing gasket B (8) contacts connector A (3). An elastic component for providing thrust is installed between connector B (4) and connector A (3). Several sealing components (9) for squeezing the sealing gasket are installed inside connector C (5). Several sealing components (9) are used to form an annular surrounding structure.

2. The self-sealing water pipe interface according to claim 1, characterized in that: There is a gap between the connector C (5) and the connector A (3), and the end of the sealing gasket A (7) near the connector A (3) is located in the gap.

3. The self-sealing water pipe interface according to claim 1, characterized in that: The connector C(5) includes a housing (501) and a retaining ring (502), and the housing (501) and the retaining ring (502) are fixed together by a number of bolts.

4. The self-sealing water pipe interface according to claim 1, characterized in that: The two sides of the sealing gasket B (8) are in close contact with the connector A (3) and the outer shell (501), respectively.

5. A self-sealing water pipe interface according to claim 1, characterized in that: The elastic component includes a spring (10) and a pusher (11). The pusher (11) is slidably connected to the connector B (4). The connector A (3) has an annular groove inside. One end of the pusher (11) is slidably connected to the groove.

6. A self-sealing water pipe interface according to claim 3, characterized in that: The sealing assembly (9) includes a fixing member (901), a protrusion (902) and an arc plate (903). The fixing member (901) is fixedly connected to the inner wall of the outer shell (501). The protrusion (902) is elastically hinged to the fixing member (901) and fixedly connected to the arc plate (903). There is tight contact between every two arc plates (903).

7. A self-sealing water pipe interface according to claim 6, characterized in that: The cross-section of the arc plate (903) is arc-shaped, and the end of the arc plate (903) that contacts the sealing gasket of the arc plate (903) is rounded.

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