Pipe fitting and pipe connecting structure with water retaining function

By embedding a retaining ring inside the press-fit socket and utilizing the corrosion resistance of polytetrafluoroethylene (PTFE), the corrosion problem of the clamping components caused by rainwater ingress was solved, achieving reliable connection and sealing between the pipe and fittings.

CN223909039UActive Publication Date: 2026-02-13ZHEJIANG BANNINGER PIPING SYST LTD
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Patent Information

Application Number
CN202521014582.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-22
Publication Date
2026-02-13
Estimated Expiration
2035-05-22

AI Technical Summary

Technical Problem

When existing pipe and fitting connection structures are installed vertically, rainwater can easily enter the clamping socket through gaps, causing corrosion of the clamping components and affecting the reliability of the fastening.

Method used

A retaining ring is installed inside the press-fit socket. The inner circumferential wall of the retaining ring is in close contact with the outer circumferential wall of the pipe, and the outer circumferential wall is in close contact with the inner circumferential wall of the open end of the press-fit socket. This prevents rainwater from entering the press-fit socket. Combined with the corrosion resistance of polytetrafluoroethylene material, the sealing effect is enhanced.

Benefits of technology

It effectively prevents rainwater from entering the clamping socket, prevents corrosion of the clamping components, and ensures the reliability and sealing of the pipe and fitting fasteners.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a pipe fitting and pipe connecting structure with a water retaining function. The pipe fitting and pipe connecting structure comprises a pipe fitting and a pipe, at least one connecting port of the pipe fitting forms a clamping and pressing bell mouth, a clamping assembly and a sealing assembly are sequentially arranged on the inner side of the clamping and pressing bell mouth from outside to inside in the axial direction of the clamping and pressing bell mouth, and one end of the pipe is inserted into the clamping and pressing bell mouth. A check ring is embedded in the inner side of the outer end part of the clamping and pressing bell mouth; after the clamping and pressing bell mouth is clamped and pressed by a clamping and pressing tool, the clamping assembly is used for clamping a pipe, the sealing assembly is used for sealing a gap between the pipe and the clamping and pressing bell mouth, and the check ring is used for preventing rainwater from entering the clamping and pressing bell mouth; under the action of the check ring, when the pipe and the pipe fitting are vertically installed, the check ring can prevent rainwater from entering the clamping and pressing bell mouth, so that the situation that the clamping assembly is corroded by the rainwater can be effectively avoided, and the fastening reliability of the pipe and the pipe fitting can be ensured.
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Description

TECHNICAL FIELD

[0001] The utility model relates to pipe fitting and pipe material connecting structure technical field, specifically, relate to a pipe fitting and pipe material connecting structure with water blocking function. BACKGROUND

[0002] In order to facilitate the connection of pipe material and pipe fitting, the connecting port of the pipe fitting on the market is provided with a clamping pressure socket, the inner side of the clamping pressure socket and along the axial direction of the clamping pressure socket are sequentially provided with a clamping assembly and a sealing assembly from outside to inside, one end of the pipe material is inserted in the clamping pressure socket;When the clamping pressure socket is clamped by the clamping tool, the clamping assembly can bite the pipe material, and the sealing assembly can seal the gap between the pipe material and the clamping pressure socket, so that the pipe material and the pipe fitting can be fastened and circumferentially sealed;However, the above-mentioned pipe material and pipe fitting connecting structure exists certain gap between the pipe material and the pipe fitting clamping pressure socket when the pipe material and the pipe fitting are clamped and fastened in actual use, when the pipe material and the pipe fitting are vertically installed, rainwater will enter the clamping pressure socket through the gap between the pipe material and the clamping pressure socket and accumulate in the clamping pressure socket, that is, rainwater will cause corrosion to the clamping assembly located on the inner side of the clamping pressure socket, and after the clamping assembly is corroded, the reliability of the pipe material and the pipe fitting fastening will be affected. SUMMARY

[0003] The utility model wants to solve the technical problem to provide a pipe fitting and pipe material connecting structure with water blocking function, under the action of the blocking ring, when the pipe material and the pipe fitting are vertically installed, the blocking ring can block rainwater from entering the clamping pressure socket, so that the corrosion of the clamping assembly by rainwater can be effectively avoided, and the reliability of the pipe material and the pipe fitting fastening can be ensured.

[0004] The utility model provides a pipe fitting and pipe material connecting structure with water blocking function, it includes pipe fitting and pipe material, at least one connecting port of pipe fitting forms clamping pressure socket, the inner side of clamping pressure socket and along the axial direction of clamping pressure socket are sequentially provided with clamping assembly and sealing assembly from outside to inside, one end of pipe material is inserted in clamping pressure socket, the inner side of clamping pressure socket outer end portion is embedded with blocking ring, when clamping pressure socket is clamped by clamping tool, clamping assembly is used for biting pipe material, sealing assembly is used for sealing the gap between pipe material and clamping pressure socket, and blocking ring is used for blocking rainwater from entering clamping pressure socket.

[0005] The utility model passes through adopting above-mentioned structure, under the action of the blocking ring, when the pipe material and the pipe fitting are vertically installed, the blocking ring can block rainwater from entering the clamping pressure socket, so that the corrosion of the clamping assembly by rainwater can be effectively avoided, and the reliability of the pipe material and the pipe fitting fastening can be ensured.

[0006] In a possible implementation, the inner circumferential wall of the retaining ring is tightly sealed against the outer circumferential wall of the pipe, and the outer circumferential wall of the retaining ring is tightly sealed against the inner circumferential wall of the open end of the compression socket; after the structure is adopted, the retaining ring can reliably seal the gap between the pipe and the open end of the compression socket, that is, the retaining ring can reliably prevent rainwater from entering the compression socket to avoid rainwater accumulation in the open end of the compression socket and corrosion of the compression assembly.

[0007] In a possible implementation, after the retaining ring is extruded by the compression socket, the outer end of the retaining ring protrudes axially out of the compression socket; after the structure is adopted, the outer end of the retaining ring can protrude axially out of the compression socket after the retaining ring is extruded by the compression socket, so that the retaining ring can further prevent rainwater from entering the compression socket, that is, rainwater can be further prevented from accumulating in the compression socket.

[0008] In a possible implementation, the inner wall of the compression socket is provided with a first annular clamping groove, the outer wall of the inner end of the retaining ring is provided with an annular boss, and the annular boss and the clamping assembly are coaxially limited in the first annular clamping groove; after the structure is adopted, the annular boss and the clamping assembly are coaxially limited in the first annular clamping groove, so that the retaining ring can be effectively prevented from separating from the compression socket, and the retaining ring can be prevented from moving in the axial direction when the compression socket extrudes the retaining ring, that is, the retaining ring can be reliably extruded to tightly seal against the outer circumferential wall of the pipe and the inner circumferential wall of the open end of the compression socket, so that the retaining ring can further reliably seal the gap between the pipe and the open end of the compression socket, that is, the retaining ring can further reliably prevent rainwater from entering the compression socket to avoid rainwater accumulation in the open end of the compression socket and corrosion of the compression assembly.

[0009] In a possible implementation, the retaining ring is made of polytetrafluoroethylene material; after the retaining ring is made of polytetrafluoroethylene, the retaining ring made of polytetrafluoroethylene can further reliably seal the gap between the pipe and the open end of the compression socket when the retaining ring is extruded, that is, the retaining ring can further reliably prevent rainwater from entering the compression socket, and the retaining ring made of polytetrafluoroethylene has the advantage of good corrosion resistance.

[0010] In a possible implementation, the clamping assembly comprises a tooth ring; the tooth ring and the annular boss are coaxially limited in the first annular clamping groove, the inner wall of the tooth ring is provided with a plurality of clamping teeth which are spaced along the circumferential direction of the tooth ring, and the plurality of clamping teeth are engaged on the outer wall of the pipe; after the clamping socket is clamped by the clamping tool, the tooth ring can be extruded by the clamping socket so that the clamping teeth are engaged on the outer wall of the pipe, thereby reliably clamping the pipe fitting and the pipe to avoid the pipe from separating from the pipe fitting.

[0011] In a possible implementation, the inner wall of the clamping socket is provided with a second annular clamping groove, the sealing assembly comprises a sealing ring, the outer peripheral wall of the sealing ring is clamped and tightly sealed with the second annular clamping groove, and the inner peripheral wall of the sealing ring is tightly sealed with the outer peripheral wall of the pipe; after the clamping socket is clamped by the clamping tool, the clamping socket can apply radial extrusion force to the sealing ring, thereby reliably sealing the gap between the pipe and the pipe fitting to avoid leakage of the fluid flowing through the pipe and the pipe fitting.

[0012] In a possible implementation, the inner peripheral wall of the sealing ring is provided with a plurality of annular beads which are spaced along the axial direction of the sealing ring, and each annular bead is tightly sealed with the outer peripheral wall of the pipe fitting; after the sealing ring is subjected to the radial extrusion force of the clamping socket, the annular bead can be deformed more easily and tightly sealed with the outer peripheral wall of the pipe, thereby improving the sealing effect of the sealing ring on the gap between the pipe and the pipe fitting. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a sectional view of the structure of the utility model;

[0014] Figure 2 is Figure 1 is an enlarged structure schematic view of position A in FIG. 4. DETAILED DESCRIPTION

[0015] Firstly, those skilled in the art should understand that the embodiments are only used for explaining the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments according to the needs in order to adapt to specific application occasions.

[0016] In the description of the embodiments of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0017] In the embodiments of the present application, unless specifically defined and limited otherwise, a first feature is "on" or "under" a second feature can mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "over", "above" and "on top of" the second feature can mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. The first feature is "under", "below" and "underneath" the second feature can mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature.

[0018] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Referring to Figures 1-2 It is shown that the embodiments of the present application disclose a pipe fitting and pipe material connecting structure with a water blocking function, comprising a pipe fitting 1 and a pipe material 2; at least one connecting port of the pipe fitting 1 forms a clamping socket 11, the inner side of the clamping socket 11 and along the axial direction of the clamping socket 11 is sequentially provided with a clamping assembly and a sealing assembly from outside to inside, one end of the pipe material 2 is inserted into the clamping socket 11; the inner side of the outer end of the clamping socket 11 is embedded with a blocking ring 3; after the clamping socket 11 is clamped by a clamping tool, the clamping assembly is used to bite the pipe material 2, the sealing assembly is used to seal the gap between the pipe material 2 and the clamping socket 11, and the blocking ring 3 is used to block rainwater from entering the clamping socket 11.

[0020] The inner peripheral wall of the blocking ring 3 is tightly sealed with the outer peripheral wall of the pipe material 2, and the outer peripheral wall of the blocking ring 3 is tightly sealed with the inner peripheral wall of the opening end of the clamping socket 11; after adopting this structure, since the inner peripheral wall of the blocking ring is tightly sealed with the outer peripheral wall of the pipe material, and the outer peripheral wall of the blocking ring is tightly sealed with the inner peripheral wall of the opening end of the clamping socket, the blocking ring can reliably seal the gap between the pipe material and the opening end of the clamping socket, i.e. the blocking ring can reliably block rainwater from entering the clamping socket, so as to avoid rainwater from accumulating in the opening end of the clamping socket and causing corrosion to the clamping assembly.

[0021] After the blocking ring 3 is extruded by the clamping socket 11, the outer end of the blocking ring 3 protrudes axially out of the clamping socket 11; after adopting this structure, since the outer end of the blocking ring protrudes axially out of the clamping socket after being extruded by the clamping socket, the blocking ring can further block rainwater from entering the clamping socket, i.e. rainwater can be further avoided from accumulating in the clamping socket.

[0022] The inner wall of the clamping socket 11 is provided with a first annular clamping groove 12, the outer wall of the inner end of the check ring 3 is provided with an annular boss 31, and the annular boss 31 and the clamping assembly are coaxially limited in the first annular clamping groove 12. After the structure is adopted, the annular boss and the clamping assembly are coaxially limited in the first annular clamping groove, so that the check ring can be effectively prevented from being separated from the clamping socket. When the clamping socket extrudes the check ring, the check ring can be prevented from moving in the axial direction, that is, the check ring can be reliably extruded to tightly seal the outer peripheral wall of the pipe and the inner peripheral wall of the open end of the clamping socket, so that the check ring can further reliably seal the gap between the pipe and the open end of the clamping socket, that is, the check ring can further reliably prevent rainwater from entering the clamping socket to avoid rainwater accumulating in the open end of the clamping socket and corroding the clamping assembly.

[0023] The check ring 3 is made of polytetrafluoroethylene material. After the check ring is made of polytetrafluoroethylene, the check ring made of polytetrafluoroethylene can further reliably seal the gap between the pipe and the open end of the clamping socket when the check ring is extruded, that is, the check ring can further reliably prevent rainwater from entering the clamping socket, and the check ring made of polytetrafluoroethylene has the advantage of good corrosion resistance.

[0024] The clamping assembly includes a tooth ring 4. The annular boss 31 and the tooth ring 4 are coaxially limited in the first annular clamping groove 12. The inner wall of the tooth ring 4 is provided with a plurality of clamping teeth 41 spaced apart along the circumferential direction of the tooth ring 4, and the plurality of clamping teeth 41 are engaged on the outer wall of the pipe 2. After the clamping socket is clamped by the clamping tool, the tooth ring can be extruded by the clamping socket to make the clamping teeth engage the outer wall of the pipe, so that the pipe and the pipe fitting can be reliably clamped to prevent the pipe from being separated from the pipe fitting.

[0025] The inner wall of the clamping socket 11 is provided with a second annular clamping groove 13. The sealing assembly includes a sealing ring 5. The outer peripheral wall of the sealing ring 5 is clamped and tightly sealed with the second annular clamping groove 13, and the inner peripheral wall of the sealing ring 5 is tightly sealed with the outer peripheral wall of the pipe 2. After the clamping socket is clamped by the clamping tool, the clamping socket can apply a radial extrusion force to the sealing ring, so that the sealing ring can reliably seal the gap between the pipe and the pipe fitting to prevent leakage of the fluid flowing through the pipe and the pipe fitting.

[0026] The inner peripheral wall of the sealing ring 5 is provided with a plurality of annular ribs 51 which are spaced apart along the axial direction of the sealing ring 5, and each annular rib 51 is tightly sealed with the outer peripheral wall of the pipe fitting 1. By using this structure, when the sealing ring is pressed by the radial extrusion force of the clamping socket, the annular ribs can be deformed more easily and tightly sealed with the outer peripheral wall of the pipe fitting, thereby improving the sealing effect of the sealing ring on the gap between the pipe fitting and the pipe.

[0027] The above merely provides a specific implementation of the present application, but the protection scope of the present application is not limited to this. Any changes or replacements that can be easily thought of by those skilled in the art within the technical scope disclosed by the present application shall be encompassed within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A pipe fitting and pipe material connecting structure with a water blocking function, comprising a pipe fitting (1) and a pipe material (2); at least one connecting port of the pipe fitting (1) forms a clamping socket (11), the inner side of the clamping socket (11) and along the axial direction of the clamping socket (11) are sequentially provided with a clamping assembly and a sealing assembly from outside to inside, and one end of the pipe material (2) is inserted into the clamping socket (11); characterized in that: The inner side of the outer end of the clamping socket (11) is embedded with a check ring (3); when the clamping socket (11) is clamped by a clamping tool, the clamping assembly is used to clamp the pipe (2), the sealing assembly is used to seal the gap between the pipe (2) and the clamping socket (11), and the check ring (3) is used to prevent rainwater from entering the clamping socket (11). ​ 2. The pipe and tube connection structure with a water blocking function according to claim 1, characterized in that: The inner peripheral wall of the check ring (3) is tightly sealed with the outer peripheral wall of the pipe (2), and the outer peripheral wall of the check ring (3) is tightly sealed with the inner peripheral wall of the opening end of the clamping socket (11).

3. The pipe and tube connection structure with a water blocking function according to claim 2, characterized in that: After the check ring (3) is extruded by the clamping socket (11), the outer end of the check ring (3) protrudes axially from the clamping socket (11).

4. The pipe and tube connection structure with a water blocking function according to any one of claims 1 to 3, characterized in that: The inner wall of the clamping socket (11) is provided with a first annular clamping groove (12), and the outer wall of the inner end of the check ring (3) is provided with an annular boss (31), the annular boss (31) and the clamping assembly are coaxially limited in the first annular clamping groove (12).

5. The pipe and tube connection structure with a water-blocking function according to claim 4, characterized by: The check ring (3) is made of polytetrafluoroethylene material.

6. The pipe and tube connection structure with a water-blocking function according to claim 4, characterized by: The clamping assembly includes a tooth ring (4); the annular boss (31) and the tooth ring (4) are coaxially limited in the first annular clamping groove (12), and the inner wall of the tooth ring (4) is provided with a plurality of clamping teeth (41) distributed along the circumferential direction of the tooth ring (4), and a plurality of clamping teeth (41) are engaged on the outer wall of the pipe (2).

7. The pipe and tube connection structure with a water-blocking function according to any one of claims 1 to 3 or any one of claims 5 to 6, characterized by: The inner wall of the clamping socket (11) is provided with a second annular clamping groove (13), and the sealing assembly includes a sealing ring (5), the outer peripheral wall of the sealing ring (5) is matched and clamped with the second annular clamping groove (13) and tightly sealed, and the inner peripheral wall of the sealing ring (5) is tightly sealed with the outer peripheral wall of the pipe (2).

8. The pipe and tube connection structure with a water-blocking function according to claim 7, characterized by: The inner peripheral wall of the sealing ring (5) is provided with a plurality of annular convex ribs (51) distributed along the axial direction of the sealing ring (5), and each annular convex rib (51) is tightly sealed with the outer peripheral wall of the pipe (1).