Clamp self-sealing type connector

Abstract

The utility model discloses a clamp self-sealing type connector. The clamp self-sealing type connector comprises a fixing assembly and a pair of pipe ends. The peripheries of the opposite ends of the two pipe ends are provided with limiting ring bulges which are circumferentially arranged and have inclination; the fixing assembly comprises a pair of pipe clamps of semicircular structures, limiting grooves surrounding the pipe clamps are formed in the inner circumferential walls of the two pipe clamps, and the limiting ring protrusions at the opposite ends of the two pipe ends can be clamped into the limiting grooves. According to the pipeline connector, the welding ends of the pipe ends are welded and fixed to a pipeline to be connected, the pipe ends are clamped into the limiting grooves of the two pipe clamps through the limiting ring protrusions on the peripheries of the pipe ends after being arranged oppositely, and the two pipe clamps are pre-tightened through the bolt pieces to clamp the pipe ends so that the fixing purpose can be achieved; and compared with a traditional connection mode of connecting pieces such as flanges, the installation size is smaller, the connection efficiency is high, the good stability is achieved, and the high practical value is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to a clamp self-sealing connector. Background Art

[0002] During the pipeline laying or maintenance process, it is usually necessary to connect pipelines. In the connection process, flange plates are generally used for connection. For pipelines without flanges at the connection ends, flanges are generally welded. Flange connection is cumbersome to install (with many bolts) under high pressure and large pipe diameters, and the flange is relatively heavy, affecting the installation efficiency. At the same time, the installation of the flange structure does not allow axial angular deviation, which is not conducive to improving the installation and connection efficiency. Content of the Utility Model

[0003] Aiming at the defects in the prior art, the purpose of the utility model is to provide a clamp self-sealing connector, which has a small installation size and high connection stability.

[0004] The technical solution adopted by the utility model is: a clamp self-sealing connector, which includes a fixing component and a pair of pipe ends arranged opposite to each other; circumferentially arranged limiting ring protrusions are provided on the outer peripheries of the opposite ends of the two pipe ends, and welding ends are provided at the opposite ends of the two pipe ends; the fixing component includes a pair of semi-circular pipe clamps, one ends of the two pipe clamps are hinged to each other, and bolt members for fixing the pipe ends are provided at the other ends. Limiting grooves are provided on the inner peripheral walls of the two pipe clamps and are arranged around the pipe clamps. The limiting ring protrusions at the opposite ends of the two pipe ends can be clamped into the limiting grooves.

[0005] In this technical solution, the pipeline connector is fixed to the pipeline to be connected through the welding ends of the pipe ends. After the pipe ends are arranged opposite to each other, the limiting ring protrusions on their outer peripheries are clamped into the limiting grooves of the two pipe clamps. The two pipe clamps are pre-tightened through bolt members. During the process of tightening the bolts, the inclined limiting grooves on the inner peripheral walls of the pipe clamps cooperate with the inclined surfaces of the limiting convex rings of the pipe ends to axially tension the two pipe ends, and the sealing ring therein is wrapped tightly and extruded, so that the sealing ring is in close contact with the inner cavities of the two pipe ends on both sides, thereby achieving the purpose of sealing and fastening. Compared with the connection method of traditional flange and other connectors, its installation size is smaller, the connection efficiency is higher, and it has good stability.

[0006] Preferably, a fixing platform is provided at one end of the pipe clamp far from its hinged end, and a fixing hole for the bolt member to pass through is provided on the fixing platform.

[0007] Preferably, a sealing ring is provided between the two pipe ends, and a sealing groove for installing the sealing ring is provided on the end face of one of the pipe ends.

[0008] Preferably, the sealing ring is arranged in a hollow manner, and the cross-section of the internal cavity is in a C-shaped structure.

[0009] Preferably, pipe end female mouths and pipe end male mouths for connecting pipelines are respectively provided on the welding ends of the two pipe ends.

[0010] Preferably, the limiting groove and the limiting ring convex on the outer periphery of the pipe end are in inclined surface fit.

[0011] The beneficial effects of the present utility model are as follows: The pipeline connector provided by the present utility model is fixedly welded to the pipeline to be connected through the welding end of the pipe end. After the pipe ends are arranged opposite to each other, the limiting ring convex on their outer peripheries are clamped into the limiting grooves of the two pipe clamps, and the two pipe clamps are pre-tightened by bolt members to clamp the pipe ends to achieve the fixing purpose. Compared with the connection methods of traditional flange and other connectors, its installation size is smaller, the connection efficiency is high, and it has good stability, and has high practical value. Description of the Drawings

[0012] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0013] Figure 1 For the three-dimensional view of the clip self-sealing connector provided in the embodiment of the present utility model Figure 1 .

[0014] Figure 2 For the three-dimensional view of the clip self-sealing connector provided in the embodiment of the present utility model Figure 2 .

[0015] Reference numerals: pipe end 100, limiting ring convex 110, welding end 120, sealing groove 130, pipe clamp 200, limiting groove 210, fixing platform 220, fixing hole 221, bolt member 300, sealing ring 400. Detailed Embodiments

[0016] The following will describe in detail the embodiments of the technical solutions of the present utility model with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model, so they are only examples and cannot be used to limit the protection scope of the present utility model.

[0017] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meanings understood by those skilled in the art to which the present utility model belongs.

[0018] Such as Figure 1 and Figure 2As shown in the figure, a specific embodiment of the present utility model provides a clip self-sealing connector. This device is used for pipeline connection, which can reduce the installation connection size and ensure connection stability at the same time. Specifically, it includes a fixing component and a pair of pipe ends 100 arranged opposite to each other. On the outer periphery of the opposite ends of the two pipe ends 100, there are circumferentially arranged limiting ring protrusions 110, and on the opposite ends of the two pipe ends 100, there are welding ends 120. The fixing component includes a pair of pipe clamps 200 with a semi-circular structure. One ends of the two pipe clamps 200 are hinged to each other, and the other ends are provided with bolt members 300 for fixing the pipe ends 100. On the inner peripheral walls of the two pipe clamps 200, there are limiting grooves 210 arranged around the pipe clamps 200. The limiting ring protrusions 110 at the opposite ends of the two pipe ends 100 can be snapped into the limiting grooves 210.

[0019] Through the above settings, the pipeline connector provided in this embodiment has a pair of pipe ends 100 arranged opposite to each other. The two pipe ends 100 are fixed to the pipeline to be connected by welding through the welding ends 120. After the two pipe ends 100 are arranged opposite to each other, the limiting ring protrusions 110 on their outer peripheries are snapped into the limiting grooves 210 of the two pipe clamps 200. The pipe clamps 200 rotate relatively and surround the outside of the pipe ends 100. The two pipe clamps 200 are pre-tightened by the bolt members 300 to simultaneously tighten the radial and axial directions of the pipe ends 100, so as to achieve the fixing purpose. Compared with the connection method of traditional flange and other connectors, the above fixing method has a smaller installation size, and only needs to fix the pipe clamps 200, with fewer fasteners, which is beneficial to improving the connection efficiency and has good stability. Since the pipe ends 100 need to be welded and fixed to the pipeline to be connected, in practical applications, the pipe ends 100 are made of carbon steel materials or materials with the same material as the steel pipe. In this embodiment, a pipe end female port and a pipe end male port for connecting the pipeline are respectively provided on the welding ends of the two pipe ends 100. In this way, after the pipeline to be connected is inserted into the pipe end female port and the pipe end male port and preliminarily positioned, the welding operation can be carried out immediately, which is beneficial to improving the welding operation efficiency.

[0020] As mentioned above, the pipe clamps 200 of the fixing component are fixed by the bolt members 300 when fastening the pipe ends 100. In this embodiment, a fixing platform 220 is provided at the end of the pipe clamp 200 away from its hinged end, and a fixing hole 221 for the bolt member 300 to pass through is provided on the fixing platform 220. In this way, after the pipe clamps 200 rotate relatively and surround the outside of the pipe ends 100, the bolt members 300 can be quickly fixed by passing through the fixing holes 221, and the operation convenience is higher.

[0021] As Figure 1 and Figure 2As shown in the figure, in order to improve the sealing performance of the pipeline connection, a sealing ring 400 is further provided between the two pipe ends 100 in this embodiment, and a sealing groove 130 for installing the sealing ring 400 is provided on the end face of one of the pipe ends 100; in this embodiment, the sealing ring is arranged in a hollow manner, and the cross-section of the internal cavity is in a C-shaped structure; due to the C-shaped cavity of the sealing ring, when there is medium pressure in the middle of the pipeline, the lips on both sides of the sealing ring 400 are pressed tightly against the female and male pipe ends that are in contact with it, and the sealing performance is better compared with the flat solid seal of the flange connection. When installing the pipeline, it is necessary to butt the pipe ends 100 and then snap them into the limiting groove 210. In this embodiment, the limiting groove 210 and the limiting ring protrusion 110 on the outer periphery of the pipe end 100 are in an inclined surface fit. The inclined surface fit is more conducive to snapping the limiting ring protrusion 110 on the outer periphery of the pipe end 100 into the limiting groove 210 inside the pipe clamp 200; and during the process of tightening the bolts, the inclined limiting groove on the inner peripheral wall of the pipe clamp 200 and the inclined surface of the limiting convex ring of the pipe end 100 cooperate with each other to axially tension the two pipe ends 100, and wrap and squeeze the sealing ring 400 therein, so that the sealing ring 400 is tightly attached to the inner cavities of the two pipe ends 100 on both sides, further improving the connection sealing performance.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

Claims

1. A clip self-sealing connector, characterized in that: It comprises a fixing assembly and a pair of pipe ends (100) arranged opposite to each other; The outer periphery of the opposite ends of the two pipe ends (100) is provided with a circumferentially arranged limiting annular protrusion (110), and the ends of the two pipe ends (100) that are separated from each other are provided with a welding end (120); The fixing assembly comprises a pair of semicircular pipe clamps (200), one end of the two pipe clamps (200) being hinged to each other, and the other end being provided with a bolt member (300) for fixing the pipe end (100), the inner circumferential wall of the two pipe clamps (200) being provided with a limiting groove (210) arranged around the pipe clamps (200), and the limiting ring protrusion (110) at the opposite end of the two pipe ends (100) being able to be clamped into the limiting groove (210).

2. The clip self-sealing connector according to claim 1, characterized in that: A fixing platform (220) is provided at one end of the pipe clamp (200) away from the hinged end thereof, and a fixing hole (221) is provided on the fixing platform (220) for the bolt member (300) to pass through.

3. The clip self-sealing connector according to claim 1, characterized in that: A sealing ring (400) is provided between the two pipe ends (100), and a sealing groove (130) for installing the sealing ring (400) is provided on the end surface of one of the pipe ends (100).

4. The clip self-sealing connector according to claim 3, characterized in that: The sealing ring (400) is hollow, and the cross section of the internal cavity is in a C-shaped structure.

5. The clip self-sealing connector according to claim 1, characterized in that: The welding ends (120) of the two pipe ends (100) are respectively provided with a pipe end female opening and a pipe end male opening for connecting the pipe.

6. The clip self-sealing connector according to claim 1, characterized in that: The limiting groove (210) is matched with the limiting annular protrusion (110) on the outer periphery of the pipe end (100) in an inclined plane.

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