A multi-pipe diameter adapted PERT pipe connection structure

Abstract

This utility model relates to the field of pipe connection structure technology, and discloses a multi-diameter adaptable PERT pipe connection structure, including a connecting pipe with a conical cavity on its inner wall, a fixing structure at one end of the connecting pipe, an adaptive sealing structure inside the connecting pipe, and a fixing structure at the end of the connecting pipe. In this utility model, by setting an adaptive sealing structure, the arc-shaped sealing strip and the spring work together to allow the connection structure to automatically adapt to pipes of different diameters. When the pipe is inserted into the conical cavity, the arc-shaped sealing strip tightly adheres to the outer wall of the pipe under the elastic force of the spring, achieving a reliable sealing effect. This improves the adaptability of the connection structure to pipes of different diameters, enhances sealing performance, effectively solves the problem of poor sealing caused by pipe diameter mismatch in traditional connection structures, reduces the risk of leakage, and improves the stability and service life of the pipeline system.

Description

Technical Field

[0001] This utility model relates to the field of pipe connection structure technology, and in particular to a PERT pipe connection structure that adapts to multiple pipe diameters. Background Technology

[0002] A multi-diameter adaptable PERT pipe connection structure is a device for connecting pipes of different diameters. Its unique design aims to achieve compatibility with various pipe diameters while ensuring a robust and airtight connection. This connection structure is widely used in building water supply and drainage systems, home renovations, and industrial piping systems. It effectively solves problems such as poor pipe diameter compatibility and inadequate sealing found in traditional connection methods, improving the overall performance and reliability of the piping system.

[0003] In existing pipe connection technologies, fixed-diameter connectors are typically used to connect pipes. The process begins with selecting a suitable connector based on the pipe's diameter. Then, the pipe is inserted into the connector and secured tightly using threads, clamps, or other methods. During the connection process, sealant or sealing rings may be used to ensure a tight seal at the joint. Connecting pipes of different diameters requires different connector specifications, increasing the complexity and cost of the installation.

[0004] While existing pipe connection technologies can meet basic pipe connection requirements to a certain extent, they still have some limitations in practical applications. For example, existing sealing structures typically only adapt to a single pipe diameter and are difficult to automatically adjust to minor changes in pipe diameter, thus affecting the reliability of the seal. Therefore, a multi-diameter adaptable PERT pipe connection structure is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a multi-diameter adaptable PERT pipe connection structure, which aims to improve the problems of poor sealing and low construction efficiency caused by pipe diameter mismatch during pipe connection in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a multi-diameter adaptable PERT pipe connection structure, including a connecting pipe, the inner wall of the connecting pipe having a tapered cavity, one end of the connecting pipe having a fixing structure, the interior of the connecting pipe having an adaptive sealing structure, and the end of the connecting pipe having a fixing structure.

[0007] The adaptive sealing structure includes an arc-shaped sealing strip, and the inner wall of the conical cavity is provided with an arc-shaped groove. The arc-shaped sealing strip is elastically connected to the inner wall of the arc-shaped groove by two springs.

[0008] As a further description of the above technical solution: the fixing structure includes a fixing ring, the end face of the fixing ring contacts a rotating ring, the end face of the rotating ring contacts the surface of the sliding rod through an arc-shaped hole, the end face of the fixing ring is fixedly connected to the end face of the connecting pipe, the end face of the fixing ring is provided with a sliding groove, the inner wall of the sliding groove is slidably connected to a stop plate, the front side of the stop plate is fixedly connected to a sliding rod, the end of the sliding rod is fixedly connected to a stud, the surface of the stud is threaded with a nut, and the back side of the nut contacts the end face of the rotating ring through a rubber ring.

[0009] As a further description of the above technical solution: the number of arc-shaped holes in the rotating ring is two, and the number of sliding rods is two.

[0010] As a further description of the above technical solution: the end face of the rubber ring is fixedly connected to the back of the nut, and the rubber ring is in the shape of a ring.

[0011] As a further description of the above technical solution: one end of the spring is fixedly connected to the outer surface of the arc-shaped sealing strip, and the other end of the spring is fixedly connected to the inner wall of the arc-shaped groove.

[0012] As a further description of the above technical solution: the end of the connecting pipe is fixedly connected to a mounting ring, and the end face of the mounting ring is provided with a threaded hole.

[0013] As a further description of the above technical solution: the number of the abutments is two, and the bottoms of the two abutments are conical.

[0014] As a further description of the above technical solution: the inner edge of the arc-shaped sealing strip is set with a bevel.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, by setting an adaptive sealing structure, the arc-shaped sealing strip and the spring work together to enable the connection structure to automatically adapt to pipes of different diameters. When the pipe is inserted into the conical cavity, the arc-shaped sealing strip fits tightly against the outer wall of the pipe under the elastic force of the spring, achieving a reliable sealing effect. This improves the adaptability of the connection structure to pipes of different diameters and enhances the sealing performance. It effectively solves the problem of poor sealing caused by pipe diameter mismatch in traditional connection structures, reduces the risk of water leakage, and improves the stability and service life of the pipeline system.

[0017] 2. In this utility model, the pipe is firmly clamped by the cooperation of the fixed ring, rotating ring, sliding rod, abutment plate, stud, and nut. The abutment plate is made of rubber and has a conical bottom, which can better clamp the pipe and ensure the connection is firm. At the same time, after the nut is loosened, the rotating ring can be rotated, and the sliding rod can be moved by the arc hole to adjust the position of the abutment plate and position the inserted pipe. After the nut is tightened, the friction generated by the contact between the rubber ring and the end face of the rotating ring restricts the movement of the rotating ring, ensuring the stability of the connection and enhancing the firmness of the pipe connection. Attached Figure Description

[0018] Figure 1 This is a front view of a multi-diameter adaptable PERT pipe connection structure proposed in this utility model.

[0019] Figure 2 This is a cross-sectional schematic diagram of a multi-diameter adaptable PERT pipe connection structure proposed in this utility model.

[0020] Figure 3 This utility model proposes a multi-diameter adaptable PERT pipe connection structure. Figure 2 Enlarged view of point A;

[0021] Figure 4 This is a schematic diagram of the separation structure of the fixing structure in a multi-diameter adaptable PERT pipe connection structure proposed in this utility model.

[0022] Legend:

[0023] 1. Connecting pipe; 2. Fixing structure; 201. Rotary ring; 202. Fixing ring; 203. Arc-shaped hole; 204. Support plate; 205. Sliding rod; 206. Stud; 207. Sliding groove; 208. Nut; 3. Conical cavity; 4. Mounting ring; 5. Self-adaptive sealing structure; 501. Arc-shaped sealing strip; 502. Arc-shaped groove; 503. Spring; 6. Threaded hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figure 1This utility model provides an embodiment of a multi-diameter adaptable PERT pipe connection structure, including a connecting pipe 1. An installation ring 4 is fixedly connected to the end of the connecting pipe 1. The end face of the installation ring 4 has a threaded hole 6 for threaded connection with an external pipe, ensuring the stability and reliability of the connection. A tapered cavity 3 is formed on the inner wall of the connecting pipe 1. The tapered cavity 3 is designed to guide pipe insertion and provide a preliminary sealing effect, while also providing installation space for an adaptive sealing structure 5. A fixing structure 2 is provided at one end of the connecting pipe 1. The fixing structure 2 is used to fix the pipe and ensure the firmness of the connection, preventing the pipe from loosening during use. An adaptive sealing structure 5 is provided inside the connecting pipe 1. The adaptive sealing structure 5 can automatically adjust the sealing effect according to the pipe diameter, ensuring the reliability of the seal.

[0026] Reference Figure 2 , Figure 3 The adaptive sealing structure 5 includes an arc-shaped sealing strip 501. The inner edge of the arc-shaped sealing strip 501 is beveled. This design allows the arc-shaped sealing strip 501 to automatically adjust its shape and fit tightly against the outer wall of the pipe when the pipe is inserted. The inner wall of the conical cavity 3 is provided with an arc-shaped groove 502. The arc-shaped sealing strip 501 is elastically connected to the inner wall of the arc-shaped groove 502 by two springs 503. One end of the spring 503 is fixedly connected to the outer surface of the arc-shaped sealing strip 501, and the other end of the spring 503 is fixedly connected to the inner wall of the arc-shaped groove 502. The elastic force of the spring 503 allows the arc-shaped sealing strip 501 to fit tightly against the pipe, thereby achieving a seal.

[0027] Reference Figure 1 , Figure 2 , Figure 4A fixing structure 2 is provided at the end of the connecting pipe 1. The fixing structure 2 includes a fixing ring 202. The end face of the fixing ring 202 is fixedly connected to the end face of the connecting pipe 1. The end face of the fixing ring 202 contacts a rotating ring 201. The end face of the rotating ring 201 contacts the surface of the sliding rod 205 through an arc-shaped hole 203. The design of the arc-shaped hole 203 allows the sliding rod 205 to slide within the rotating ring 201, thereby realizing the rotation function of the rotating ring 201. A sliding groove 207 is provided on the end face of the fixing ring 202. A stop plate 204 is slidably connected to the inner wall of the sliding groove 207. The front side of the stop plate 204 is fixedly connected to the sliding rod 205. The end of the sliding rod 205 is fixedly connected to... There is a stud 206, and a nut 208 is threadedly connected to the surface of the stud 206. The back of the nut 208 contacts the end face of the swivel ring 201 through a rubber ring. The end face of the rubber ring is fixedly connected to the back of the nut 208. The rubber ring is ring-shaped. The design of the rubber ring can increase the friction between the nut 208 and the swivel ring 201 and prevent the nut 208 from loosening. There are two arc-shaped holes 203 in the swivel ring 201, two slide rods 205, and two abutment plates 204. The bottom of the two abutment plates 204 is conical. The conical design allows the abutment plates 204 to better clamp the pipe and ensure the connection is firm.

[0028] Working Principle: When connecting pipes of different diameters, the pipe is first inserted into the conical cavity 3 of the connecting pipe 1. Because the inner edge of the arc-shaped sealing strip 501 is beveled, the pipe compresses the arc-shaped sealing strip 501 during insertion, causing it to compress the spring 503 within the arc-shaped groove 502. The elastic force of the spring 503 ensures that the arc-shaped sealing strip 501 fits tightly against the outer wall of the pipe, thus achieving a seal. After the pipe is inserted, rotating the nut 208 pushes the abutment plate 204 and the slide rod 205 inward. The abutment plate 204, made of rubber, has good elasticity and can fit tightly against the outer wall of the pipe, further enhancing the sealing effect. The movement of the slide rod 205 positions the inserted pipe using the abutment plate 204, ensuring the pipe remains stable during connection. If the pipe position needs adjustment, the nut 208 can be loosened. At this time, due to the loosening of the nut 208, the clamping force of the abutment plate 204 and the slide rod 205 disappears, allowing the rotating ring 201 to be rotated. The arc-shaped hole 203 on the swivel 201 can drive the slide rod 205 to move, thereby adjusting the position of the abutment plate 204 and repositioning the inserted pipe. After adjustment, the nut 208 is tightened again. The nut 208 generates sufficient friction by contacting the rubber ring on the end face of the swivel 201, limiting the movement of the swivel 201 and ensuring the firmness and stability of the connection.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-diameter adaptable PERT pipe connection structure, comprising a connecting pipe (1), characterized in that: The inner wall of the connecting pipe (1) is provided with a conical cavity (3), one end of the connecting pipe (1) is provided with a fixing structure (2), the interior of the connecting pipe (1) is provided with an adaptive sealing structure (5), and the end of the connecting pipe (1) is provided with a fixing structure (2). The adaptive sealing structure (5) includes an arc-shaped sealing strip (501), and the inner wall of the conical cavity (3) is provided with an arc-shaped groove (502). The arc-shaped sealing strip (501) is elastically connected to the inner wall of the arc-shaped groove (502) by two springs (503).

2. The PERT pipe connection structure with multi-diameter adaptability according to claim 1, characterized in that: The fixing structure (2) includes a fixing ring (202), the end face of the fixing ring (202) contacts a rotating ring (201), the end face of the rotating ring (201) contacts the surface of the sliding rod (205) through an arc-shaped hole (203), the end face of the fixing ring (202) is fixedly connected to the end face of the connecting pipe (1), the end face of the fixing ring (202) is provided with a sliding groove (207), the inner wall of the sliding groove (207) is slidably connected to a stop plate (204), the front side of the stop plate (204) is fixedly connected to the sliding rod (205), the end of the sliding rod (205) is fixedly connected to a stud (206), the surface of the stud (206) is threadedly connected to a nut (208), the back side of the nut (208) contacts the end face of the rotating ring (201) through a rubber ring.

3. The PERT pipe connection structure for multi-diameter adaptation according to claim 2, characterized in that: The number of arc-shaped holes (203) on the rotating ring (201) is two, and the number of slide rods (205) is two.

4. The PERT pipe connection structure for multi-diameter adaptation according to claim 2, characterized in that: The end face of the rubber ring is fixedly connected to the back of the nut (208), and the rubber ring is in the shape of a ring.

5. The PERT pipe connection structure for multi-diameter adaptation according to claim 1, characterized in that: One end of the spring (503) is fixedly connected to the outer surface of the arc-shaped sealing strip (501), and the other end of the spring (503) is fixedly connected to the inner wall of the arc-shaped groove (502).

6. The PERT pipe connection structure for multi-diameter adaptation according to claim 1, characterized in that: The end of the connecting pipe (1) is fixedly connected to a mounting ring (4), and the end face of the mounting ring (4) is provided with a threaded hole (6).

7. The PERT pipe connection structure for multi-diameter adaptation according to claim 2, characterized in that: The number of the abutments (204) is two, and the bottom of the two abutments (204) is conical.

8. The PERT pipe connection structure for multi-diameter adaptation according to claim 1, characterized in that: The inner edge of the arc-shaped sealing strip (501) is beveled.

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