CN220379104U - Waterproof ring for pipeline clamping connection - Google Patents

Abstract

The utility model discloses a waterproof ring for pipeline clamping connection, which includes a body (2) for connecting to the insertion end of the clamping connector (1), and the body (2) extends along the axis of the clamping connector (1). An axial through hole (3) is provided in the direction, and the axial through hole (3) is used for the pipe (4) to be sleeved and inserted. The inner circumference of the axial through hole (3) is provided with a continuous circle of elastic skirts (5). The inner diameter of the elastic skirt (5) is smaller than the outer diameter of the pipe (4). When the pipe (4) is sleeved and inserted, the elastic skirt (5) fits the outer peripheral wall of the pipe (4); the waterproof ring is conducive to It solves the problem of corrosion and is also suitable for pipe compression connections.

Description

A waterproof ring used for pipe clamping connection

Technical field

The utility model relates to the technical field of pipeline connection, and more specifically to a waterproof ring used for pipeline clamping connection.

Background technique

Pipes are devices connected by pipes, valves, etc. for transporting gases, liquids or fluids with solid particles. Pressure-type pipe fittings are one of the pressure-connected pipeline systems, that is, two pipes that need to be connected are pressed together. The connector is clamped and connected. During the clamping connection, the clamping tool is used to clamp and deform the connector, thereby connecting and fixing the two pipes to be connected together. The two pipes can withstand the internal fluid pressure. Under the design pressure case, they will not separate from each other, and at the same time, a seal must be achieved so that the fluid will not leak. Pipe clamping connection is a purely mechanical connection structure, which has the advantages of high efficiency and reliability.

However, the applicant found that in actual applications, the compression connection part was corroded. After further analysis, it was found that due to the deformation caused by the compression connection, the sealing ring of the compression connection part reached the insertion port of the compression connection part. There is a certain gap between the parts where the pipe is inserted into the clamping connector from the insertion port. The distribution of the gaps is random, and the severity of the corrosion varies.

The applicant proposes a waterproof ring for pipe clamping connections, which is beneficial to solving the problem of corrosion and is suitable for pipe clamping connections.

Utility model content

The technical problem to be solved by the utility model is to provide a waterproof ring for pipeline clamping connection, which is beneficial to solving the problem of corrosion and is suitable for pipeline clamping connection.

The utility model provides a waterproof ring for pipe clamping connection, which includes a body for connecting to the insertion end of the clamping connector. The body is provided with an axial through hole along the axial direction of the clamping connector. The axial through hole For pipe sleeve insertion, a continuous circle of elastic skirt is provided on the inner circumference of the axial through hole. The inner diameter of the elastic skirt is smaller than the outer diameter of the pipe. When the pipe sleeve is inserted, the elastic skirt fits the outer peripheral wall of the pipe.

In this technical solution, when the waterproof ring is used for pipe clamping connection, the waterproof ring is first connected to the insertion end of the clamping connector, that is, the body is connected to the insertion end of the clamping connector, and then the pipe is sleeved and inserted. Insert it into the waterproof ring and the clamping connector in sequence, and then clamp it with a clamping tool. When clamping, the clamping connector is deformed by the clamping tool to form a clamping connection structure. Since the inner diameter of the elastic skirt is smaller than The outer diameter of the pipe. When the pipe sleeve is inserted, the elastic skirt is carried by the outer peripheral wall of the pipe to form a trumpet or sleeve shape and fits the outer peripheral wall of the pipe. Then, although the clamping connector is deformed by the clamping tool, , but the elastic skirt is elastic and soft, so after the compression connector is deformed, the elastic skirt can still fit well on the outer peripheral wall of the pipe. Among them, the inner wall of the compression connector generated after the compression connector is deformed and the The elastic skirt can automatically fill the gap between the outer walls of the pipe to ensure a certain seal.

It can be seen from the above that before clamping, the waterproof ring is connected to the insertion end of the clamping connector, and can be inserted into the sleeve of the pipe, and the elastic skirt is carried by the outer peripheral wall of the pipe to form a horn-shaped or sleeve-shaped patch. Closed on the outer peripheral wall of the pipe, and then during and after compression, the waterproof ring can automatically fill the gap according to the deformation, thereby ensuring a certain sealing and blocking the continuous entry of external water vapor, condensation water, etc., thus protecting the The internal ring gear helps to avoid the hidden dangers caused by corrosion and failure of the ring gear, so it is helpful to solve the problem of corrosion and is also suitable for pipe clamping connections.

In short, this waterproof ring is a special waterproof ring, specially designed for pipe clamping connections.

As an improvement, an annular groove is provided on the side of the body facing the insertion end, and the annular groove is used to be sleeved with the insertion end to connect the waterproof ring to the insertion end.

As an improvement, an elastic skirt is provided on the outside of the axial through hole.

As an improvement, the outer surface of the elastic skirt is flush with the outer end surface of the body.

As an improvement, the outer end surface of the body is provided with a circumferential convex ring, and the circumferential convex ring is arranged around the outer periphery of the outer surface of the elastic skirt.

As an improvement, the inner circumference of the axial through hole is also provided with a radial positioning ring. When the pipe is inserted into the socket, the radial positioning ring is used to fit with the outer peripheral wall of the pipe. The elastic skirt and the radial positioning ring are along the The pipe insertion directions are set in sequence, and the inner diameter of the radial positioning ring is smaller than the inner diameter of the ring gear in the clamping connector.

As an improvement, the inner peripheral wall of the axial through hole serves as the radial positioning ring.

As an improvement, the body and elastic skirt are integrated into a whole body using rubber molding technology.

Description of the drawings

Figure 1 is a schematic three-dimensional view of a waterproof ring used for pipeline clamping connection according to the present disclosure.

Figure 2 is a schematic half-section view of a waterproof ring used for pipeline clamping connection according to the present disclosure.

Figure 3 is an enlarged view of A.

Figure 4 is a half-section schematic diagram before crimping connection.

Figure 5 is a half-section schematic diagram after compression connection.

Figure 6 is a cross-sectional view along A-A.

Figure 7 is an enlarged view of B.

Shown in the figure: 1. Pressure connector; 2. Body; 3. Axial through hole; 4. Pipe; 5. Elastic skirt; 6. Annular groove; 7. Circumferential convex ring; 8. Radial positioning Ring; 9. Ring gear; 10. Sealing ring; 11. Stop; 12. Clearance.

Detailed ways

For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely descriptions of exemplary embodiments of the present application and are not intended to limit the scope of the present application in any way. Throughout this specification, the same reference numbers refer to the same elements.

In the drawings, the thickness, size and shape of objects have been slightly exaggerated for convenience of illustration. The drawings are examples only and are not strictly to scale.

It will also be understood that the terms "comprises," "includes," "having," "includes," and "comprised of," when used in this specification, mean the presence of stated features, integers, steps, operations, elements, and /or parts, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and/or combinations thereof.

As shown in Figures 1 to 3, this embodiment discloses a waterproof ring used for pipeline clamping connection. The waterproof ring is used for pipeline clamping connection. The pipeline clamping connection is used to clamp the connector 1 through the clamped The pipe 4 is connected in the form of a connection. The compression connector 1 and the pipe 4 are all made of copper pipes, for example. Both ends of the compression connector 1 are insertion ends. The structure is symmetrically arranged left and right. There is a stop 11 in the compression connector 1. When When the tube 4 is inserted from the insertion end, it can rely on the stopper 11 for axial positioning.

As shown in Figures 4 and 5, a ring gear 9 and a sealing ring 10 are installed inside the compression connector 1 in sequence along the insertion direction of the pipe 4. When the pipe 4 is inserted, the pipe 4 will be connected to the ring gear 9 and the sealing ring 10 in sequence. Fit the sleeve and insert it into the stop 11 for axial positioning.

The radial arrows shown in FIG. 5 indicate the location and direction of the compression applied by the compression tool on the outer wall of the compression connector 1 .

As shown in Figures 1 to 3, the waterproof ring of the present disclosure includes a body 2 for connecting to the insertion end of the compression connector 1. The body 2 is provided with an axial through hole 3 along the axial direction of the compression connector 1. The pipe 4 is sleeved and inserted into the through hole 3. The inner circumference of the axial through hole 3 is provided with a continuous circle of elastic skirt 5. The inner diameter of the elastic skirt 5 is smaller than the outer diameter of the pipe 4. When the pipe 4 is sleeved and inserted, The elastic skirt 5 is attached to the outer peripheral wall of the pipe 4 . During clamping, the clamping connector 1 will deform to create a gap 12 between the inner wall of the clamping connector 1 and the outer wall of the pipe 4, and the elastic skirt can automatically fill it, thereby ensuring that a certain sealing can be achieved.

In some embodiments, as shown in Figures 2 and 3, an annular groove 6 is provided on the side of the body 2 facing the insertion end. The annular groove 6 is used to be sleeved with the insertion end to connect the waterproof ring to the insertion end. In this way, it is convenient to connect the body 2 to the insertion end, that is, it is convenient to connect the waterproof ring to the insertion end.

In order to further facilitate the connection, the cross-section of the annular groove 6 is set in a figure-eight shape with a large opening and a narrow bottom. This facilitates the annular groove 6 to be socketed at the insertion end. As the socket is deepened, the narrow part can be close to the insertion end. Keep the waterproof ring axially motionless.

In some embodiments, as shown in Figures 2 and 3, an elastic skirt 5 is provided on the outside of the axial through hole 3. In this way, the elastic skirt 5 can fit with the outer wall when the tube 4 is inserted.

In some embodiments, as shown in Figures 2 and 3, the outer surface of the elastic skirt 5 is flush with the outer end surface of the body 2. After this design, the inner peripheral wall of the axial through hole 3 can be flat, and there will be no hard protrusions inward due to the arrangement of the elastic skirt 5. In addition, this improvement also facilitates the production of the elastic skirt 5 and reduces manufacturing. Difficulty.

In some embodiments, as shown in FIGS. 2 and 3 , the outer end surface of the body 2 is provided with a circumferential convex ring 7 , and the circumferential convex ring 7 is arranged around the outer periphery of the outer surface of the elastic skirt 5 . The circumferential convex ring 7 may or may not be provided. For example, the waterproof ring in Figures 4 and 5 does not have the circumferential convex ring 7.

In some embodiments, as shown in Figures 2, 3, 4, and 5, the inner circumference of the axial through hole 3 is also provided with a radial positioning ring 8. When the pipe 4 is sleeved and inserted, the radial positioning ring 8 is used for The elastic skirt 5 and the radial positioning ring 8 are arranged sequentially along the insertion direction of the pipe 4. The inner diameter of the radial positioning ring 8 is smaller than the inner diameter of the ring gear 9 in the compression connector 1. . After this design, when the tube 4 is inserted, the tube 4 is positioned in a certain radial direction, and the outer wall of the tube 4 is not easily rubbed against the teeth on the ring gear 9, thereby reducing the risk of damage to the outer wall of the tube 4 during insertion.

In some embodiments, as shown in Figures 2, 3, 4, and 5, the inner peripheral wall of the axial through hole 3 serves as the radial positioning ring 8. In this way, manufacturing is simplified.

In some embodiments, as shown in Figures 1 and 2, the body 2 and the elastic skirt 5 are integrally formed into a whole body using a rubber molding process. In this way, production and manufacturing are convenient, and the rubber molding process is an existing technology and will not be described in detail.

When understanding the present invention, if necessary, the above structure can be understood with reference to other embodiments/drawings, and will not be described again here.

The above are only illustrative embodiments of the present utility model. Therefore, any equivalent changes or modifications made in accordance with the structure, features and principles described in the protection scope of the present utility model patent are included in the present utility model patent. within the scope of protection.

Claims (8)

1. A waterproof ring for pipe clamping connection, characterized in that it includes a body (2) for connecting to the insertion end of the clamping connector (1), and the body (2) extends along the clamping connector (1) An axial through hole (3) is provided in the axial direction, and the axial through hole (3) is used for sleeve insertion of the pipe (4). A continuous circle of elastic skirts (5) is provided on the inner circumference of the axial through hole (3). , the inner diameter of the elastic skirt (5) is smaller than the outer diameter of the pipe (4), and when the pipe (4) is sleeved and inserted, the elastic skirt (5) fits the outer peripheral wall of the pipe (4). 2. A waterproof ring for pipe clamping connection according to claim 1, characterized in that an annular groove (6) is provided on the side of the body (2) facing the insertion end, and the annular groove (6) is It is socketed with the insertion end to connect the waterproof ring to the insertion end. 3. A waterproof ring for pipe clamping connection according to claim 1 or 2, characterized in that an elastic skirt (5) is provided outside the axial through hole (3). 4. A waterproof ring for pipe clamping connection according to claim 3, characterized in that the outer surface of the elastic skirt (5) is flush with the outer end surface of the body (2). 5. A waterproof ring for pipe clamping connection according to claim 4, characterized in that the outer end surface of the body (2) is provided with a circumferential convex ring (7), and the circumferential convex ring (7) It is arranged around the outer circumference of the outer side of the elastic skirt (5). 6. A waterproof ring for pipe clamping connection according to claim 1 or 2, characterized in that the inner circumference of the axial through hole (3) is also provided with a radial positioning ring (8), which is installed on the pipe. (4) When the socket is inserted, the radial positioning ring (8) is used to fit in close proximity with the outer peripheral wall of the pipe (4), and the elastic skirt (5) and the radial positioning ring (8) are inserted along the pipe (4) The directions are arranged in sequence, and the inner diameter of the radial positioning ring (8) is smaller than the inner diameter of the ring gear (9) in the clamping connector (1). 7. A waterproof ring for pipe clamping connection according to claim 6, characterized in that the inner peripheral wall of the axial through hole (3) serves as the radial positioning ring (8). 8. A waterproof ring for pipeline clamping connection according to claim 1, characterized in that the body (2) and the elastic skirt (5) are integrally formed into a whole body using a rubber molding process.