CN220337703U - Pipeline connecting joint with high temperature resistance and leakage prevention functions - Google Patents

Abstract

The utility model discloses a pipeline connecting joint with high temperature resistance and leakage prevention functions, which comprises a joint body, wherein a sealing ring and a clamping ring are sequentially embedded from inside to outside at the inner side of at least one connecting port of the joint body; the pipeline connecting joint also comprises a leakage-proof ring made of high-temperature resistant materials, the leakage-proof ring is embedded between the sealing ring and the clamping ring, one end of the leakage-proof ring is used for allowing one end of a pipeline to pass through, and after the connecting port is extruded by the clamping tool, the inner peripheral wall of the leakage-proof ring is used for tightly sealing with the outer peripheral wall of the pipeline, and the outer peripheral wall of the leakage-proof ring is used for tightly sealing with the inner peripheral wall of the connecting port; by adopting the structure, even when the sealing ring is melted due to high temperature, the pipeline connecting joint and the pipeline can be guaranteed to be in a sealed connection state under the action of the leakage-proof ring, so that the leakage of fluid in the pipeline connecting joint and the pipeline can be avoided, for example, the leakage of combustible fluid such as fuel gas can be prevented, and potential safety hazards can be eliminated.

Description

Pipeline connecting joint with high temperature resistance and leakage prevention functions

Technical Field

The utility model relates to the technical field of pipeline connecting joints, in particular to a pipeline connecting joint with high-temperature-resistant and leakage-proof functions.

Background

The pipeline connecting joint is a device for connecting pipelines, and at present, chinese patent publication number: CN216344471U discloses a clamping-pressing type pipe connecting piece with a toothed ring, the clamping-pressing type pipe connecting piece adopts a common thick-wall steel pipe, a pipe blank is formed after mechanical processing, then the pipe blank is extruded into a pipe fitting joint, an inner cavity of the pipe fitting joint is provided with a sealing ring, a toothed snap ring and a bushing, during installation, a pipe is inserted into the sealing ring, the toothed snap ring and the inner diameter of the bushing assembled in the inner cavity of the pipe fitting joint, a clamping-pressing clamp is used for radially pressing the outer diameter of the pipe fitting joint, deformation occurs under the action of pressure, two ends of the pipe fitting joint are extruded into a neck shape by a tubular shape, the sealing ring tightly seals the inner diameter of the pipe fitting joint and a gap of the outer diameter of the pipe, and a ratchet is arranged on the toothed snap ring to tightly engage and tightly clamp the outer diameter of the pipe, so that the tensile strength is greatly improved, and the requirements of gas, fire protection and thermal strength indexes and safety of high-rise buildings can be met.

However, when the clamping and pressing type pipeline connecting piece is actually used, for example, when the clamping and pressing type pipeline connecting piece is in a high-temperature environment, for example, when a fire disaster occurs, the sealing ring positioned in the clamping and pressing type pipeline connecting piece can be melted, namely, the sealing between the clamping and pressing type pipeline connecting piece and the pipeline can be invalid, and when the fluid in the pipeline is combustible fluid such as fuel gas, the combustible fluid such as fuel gas can flow out from a gap between the clamping and pressing type pipeline connecting piece and the pipeline, thereby further increasing fire, even causing explosion accidents, and further having great potential safety hazards.

Disclosure of Invention

The utility model provides a pipeline connecting joint with high temperature resistant and leakage resistant functions, which can ensure that the pipeline connecting joint and a pipeline are in a sealed connection state under the action of a leakage resistant ring through the arrangement of the leakage resistant ring made of high temperature resistant materials even if the sealing ring is melted due to high temperature.

The utility model relates to a pipeline connecting joint with high temperature resistance and leakage prevention functions, which comprises a joint body, wherein a sealing ring and a clamping ring are sequentially embedded from inside to outside at the inner side of at least one connecting port of the joint body; when one end of the pipeline sequentially passes through the clamping ring and the sealing ring and is inserted into the joint body, and after the connecting port is extruded by the clamping tool, the clamping ring is used for clamping the pipeline to prevent the pipeline from being separated from the joint body, and the sealing ring is used for sealing a gap between the joint body and the pipeline to prevent leakage of fluid in the joint body and the pipeline; the pipeline connecting joint further comprises a leakage-proof ring made of high-temperature-resistant materials, the leakage-proof ring is embedded between the sealing ring and the clamping ring, one end of the leakage-proof ring is used for allowing a pipeline to pass through, and after the connecting port is extruded by the clamping tool, the inner peripheral wall of the leakage-proof ring is used for tightly sealing with the outer peripheral wall of the pipeline, and the outer peripheral wall of the leakage-proof ring is used for tightly sealing with the inner peripheral wall of the connecting port.

By adopting the structure, even when the sealing ring is melted due to high temperature, the pipeline connecting joint and the pipeline can be guaranteed to be in a sealed connection state under the action of the leakage-proof ring, so that the leakage of fluid in the pipeline connecting joint and the pipeline can be avoided, for example, the leakage of combustible fluid such as fuel gas can be prevented, and potential safety hazards can be eliminated.

The utility model relates to a pipeline connecting joint with high temperature resistance and leakage prevention functions, wherein the pipeline connecting joint further comprises a check ring, the check ring is embedded at the inner side of a connecting port, the check ring is positioned at one side of a clamping ring away from a sealing ring, and the check ring is used for allowing one end of a pipeline to pass through; when the connecting port is extruded by the clamping tool, the inner peripheral wall of the retainer ring is used for tightly sealing with the outer peripheral wall of the pipeline, and the outer peripheral wall of the retainer ring is used for tightly sealing with the inner peripheral wall of the connecting port; through the setting of retaining ring, and the retaining ring is located the retaining ring and keep away from one side of sealing washer, after the connector receives the extrusion of card pressure instrument, the inner peripheral wall of retaining ring is used for hugging closely sealedly with the outer peripheral wall of pipeline, the outer peripheral wall of retaining ring is used for hugging closely sealedly with the inner peripheral wall of connector to after the one end card of connector and pipeline is pressed, the retaining ring can block the rainwater and enter into the connector, and then can avoid card pressure ring and leak protection circle to appear by the circumstances of rainwater corruption, can ensure stability and reliability after pipeline and the joint body coupling.

The utility model relates to a pipeline connecting joint with high temperature resistance and leakage prevention functions, wherein an annular step is arranged on the inner wall of a connecting port, one side of a sealing ring, which is far away from a clamping ring, is propped against the annular step, an annular closing-up which is bent inwards towards the radial direction of the connecting port is arranged at the outer end part of the connecting port, and one side of a retainer ring, which is far away from the clamping ring, is propped against the annular closing-up; after the structure is adopted, the sealing ring, the leakage-proof ring, the clamping ring and the check ring can be reliably limited on the inner side of the connecting port, namely, the sealing ring, the leakage-proof ring, the clamping ring and the check ring can be reliably embedded on the inner side of the connecting port.

The utility model relates to a pipeline connecting joint with high temperature resistance and leakage prevention functions, wherein a leakage-proof ring is made of a high temperature resistant metal material, and a retainer ring is made of a plastic material; after the anti-leakage ring is made of high-temperature-resistant metal materials, the anti-leakage ring has the advantages of good high-temperature-resistant effect and high reliability, for example, the anti-leakage ring can be made of stainless steel materials or copper materials; after the retainer ring is made of plastic materials, the retainer ring has the advantage of good anti-corrosion effect, for example, the retainer ring can be made of polytetrafluoroethylene.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

FIG. 1 is a schematic cross-sectional view of the present utility model;

FIG. 2 is a schematic cross-sectional view of an end of a conduit inserted into a connection port of the present utility model;

fig. 3 is an enlarged schematic view of the structure of fig. 2 at a.

Detailed Description

Various embodiments of the utility model are disclosed in the following drawings, in which details of the practice are set forth in the following description for the purpose of clarity. However, it should be understood that these practical details are not to be taken as limiting the utility model. That is, in some embodiments of the utility model, these practical details are unnecessary. Moreover, for the purpose of simplifying the drawings, some conventional structures and components are shown in the drawings in a simplified schematic manner.

In addition, the descriptions of the "first," "second," and the like, herein are for descriptive purposes only and are not intended to be specifically construed as order or sequence, nor are they intended to limit the utility model solely for distinguishing between components or operations described in the same technical term, but are not to be construed as indicating or implying any relative importance or order of such features. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

As shown in fig. 1-3, the pipeline connecting joint with the high temperature resistant and leakage resistant functions comprises a joint body 1, wherein a sealing ring 2 and a clamping ring 3 are sequentially embedded inside at least one connecting port 11 of the joint body 1 from inside to outside; when one end of the pipe 4 sequentially passes through the clamping ring 3 and the sealing ring 2 and is inserted into the joint body 1, and after the connecting port 11 is extruded by the clamping tool, the clamping ring 3 is used for clamping the pipe 4 to prevent the pipe 4 from being separated from the joint body 1, and the sealing ring 2 is used for sealing a gap between the joint body 1 and the pipe 4 to prevent fluid in the joint body 1 and the pipe 4 from leaking; the pipeline connecting joint further comprises a leakage-proof ring 5 made of high-temperature-resistant materials, the leakage-proof ring 5 is embedded between the sealing ring 2 and the clamping ring 3, the leakage-proof ring 5 is used for enabling one end of the pipeline 4 to pass through, when the connecting port 11 is extruded by the clamping tool, the inner peripheral wall of the leakage-proof ring 5 is used for tightly sealing with the outer peripheral wall of the pipeline 4, and the outer peripheral wall of the leakage-proof ring 5 is used for tightly sealing with the inner peripheral wall of the connecting port 11.

The pipeline connecting joint further comprises a check ring 6, the check ring 6 is embedded in the inner side of the connecting port 11, the check ring 6 is positioned on one side of the clamping ring 3 away from the sealing ring 2, and the check ring 6 is used for allowing one end of the pipeline 4 to pass through; when the connecting port 11 is extruded by the clamping tool, the inner peripheral wall of the retainer ring 6 is used for tightly sealing with the outer peripheral wall of the pipeline 4, and the outer peripheral wall of the retainer ring 6 is used for tightly sealing with the inner peripheral wall of the connecting port 11; through the setting of retaining ring, and the retaining ring is located the retaining ring and keep away from one side of sealing washer, after the connector receives the extrusion of card pressure instrument, the inner peripheral wall of retaining ring is used for hugging closely sealedly with the outer peripheral wall of pipeline, the outer peripheral wall of retaining ring is used for hugging closely sealedly with the inner peripheral wall of connector to after the one end card of connector and pipeline is pressed, the retaining ring can block the rainwater and enter into the connector, and then can avoid card pressure ring and leak protection circle to appear by the circumstances of rainwater corruption, can ensure stability and reliability after pipeline and the joint body coupling.

An annular step 111 is arranged on the inner wall of the connecting port 11, one side of the sealing ring 2 away from the clamping ring 3 is abutted against the annular step 111, an annular closing-in 112 which is bent inwards towards the radial direction of the connecting port 11 is arranged at the outer end part of the connecting port 11, and one side of the retainer ring 6 away from the clamping ring 3 is abutted against the annular closing-in 112; after the structure is adopted, the sealing ring, the leakage-proof ring, the clamping ring and the check ring can be reliably limited on the inner side of the connecting port, namely, the sealing ring, the leakage-proof ring, the clamping ring and the check ring can be reliably embedded on the inner side of the connecting port.

The leakage preventing ring 5 is made of high temperature resistant metal material, and the retainer ring 6 is made of plastic material; after the anti-leakage ring is made of high-temperature-resistant metal materials, the anti-leakage ring has the advantages of good high-temperature-resistant effect and high reliability, for example, the anti-leakage ring can be made of stainless steel materials or copper materials; after the retainer ring is made of plastic materials, the retainer ring has the advantage of good anti-corrosion effect, for example, the retainer ring can be made of polytetrafluoroethylene.

When the anti-leakage joint is connected with a pipeline, firstly, one end of the pipeline sequentially passes through the check ring, the clamping ring, the anti-leakage ring and the sealing ring and then is inserted into the connecting port on the joint body, then the clamping tool clamps and presses the connecting port on the joint body, after the connecting port is extruded by the clamping tool, the clamping ring can clamp the pipeline so as to prevent the pipeline from being separated from the joint body, the inner peripheral wall of the anti-leakage ring can be tightly sealed with the outer peripheral wall of the pipeline, the outer peripheral wall of the anti-leakage ring can be tightly sealed with the inner peripheral wall of the connecting port, and meanwhile, the inner peripheral wall of the check ring can be tightly sealed with the outer peripheral wall of the pipeline; by adopting the structure, when the pipeline connecting joint and the pipeline are in a high-temperature environment, such as a fire disaster, even if the sealing ring is melted due to high temperature, the pipeline connecting joint and the pipeline can be ensured to be in a sealed connection state under the action of the leakage-proof ring, thereby avoiding the leakage of fluid in the pipeline connecting joint and the pipeline, for example, the leakage of combustible fluid such as fuel gas and the like, and further eliminating the potential safety hazard; through the setting of retaining ring, the retaining ring can block in the rainwater enters into the connector, and then can avoid clamping ring and leak protection circle to appear by the circumstances of rainwater corruption, can ensure stability and reliability after pipeline and joint body are connected.

The foregoing description is only illustrative of the utility model and is not to be construed as limiting the utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principles of the present utility model, should be included in the scope of the claims of the present utility model.

Claims (4)

1. The pipeline connecting joint with the high-temperature-resistant and leakage-resistant functions comprises a joint body (1), wherein a sealing ring (2) and a clamping ring (3) are sequentially embedded into the inner side of at least one connecting port (11) of the joint body (1) from inside to outside; when one end of the pipeline (4) sequentially passes through the clamping ring (3) and the sealing ring (2) and is inserted into the joint body (1), and after the connecting port (11) is extruded by the clamping tool, the clamping ring (3) is used for clamping the pipeline (4) to prevent the pipeline (4) from being separated from the joint body (1), and the sealing ring (2) is used for sealing a gap between the joint body (1) and the pipeline (4) to prevent fluid in the joint body (1) and the pipeline (4) from leaking; the method is characterized in that: the pipeline connecting joint further comprises a leakage-proof ring (5) made of high-temperature-resistant materials, the leakage-proof ring (5) is embedded between the sealing ring (2) and the clamping ring (3), the leakage-proof ring (5) is used for allowing one end of the pipeline (4) to pass through, after the connecting port (11) is extruded by the clamping tool, the inner peripheral wall of the leakage-proof ring (5) is used for tightly adhering and sealing with the outer peripheral wall of the pipeline (4), and the outer peripheral wall of the leakage-proof ring (5) is used for tightly adhering and sealing with the inner peripheral wall of the connecting port (11).

2. The pipeline connecting joint with the high-temperature-resistant and leakage-resistant functions according to claim 1, further comprising a retainer ring (6), wherein the retainer ring (6) is embedded in the inner side of the connecting port (11), the retainer ring (6) is positioned on one side, away from the sealing ring (2), of the clamping ring (3), and the retainer ring (6) is used for allowing one end of the pipeline (4) to pass through; when the connecting port (11) is extruded by the clamping tool, the inner peripheral wall of the retainer ring (6) is used for tightly sealing with the outer peripheral wall of the pipeline (4), and the outer peripheral wall of the retainer ring (6) is used for tightly sealing with the inner peripheral wall of the connecting port (11).

3. The pipeline connecting joint with the high-temperature-resistant and leakage-proof functions according to claim 2, wherein an annular step (111) is arranged on the inner wall of the connecting port (11), one side, away from the clamping ring (3), of the sealing ring (2) abuts against the annular step (111), an annular closing-in (112) which is bent inwards in the radial direction of the connecting port (11) is arranged at the outer end part of the connecting port (11), and one side, away from the clamping ring (3), of the retaining ring (6) abuts against the annular closing-in (112).

4. A pipe connection joint with high temperature resistant and leakage proof function according to claim 2 or 3, characterized in that the leakage preventing ring (5) is made of high temperature resistant metal material and the retainer ring (6) is made of plastic material.