Leak-proof pipeline sealing structure

Abstract

The utility model discloses a leakproof pipeline sealing structure which is characterized in that a first connecting piece is sleeved on the periphery of a first pipeline and is fixedly connected with the first pipeline, a second connecting piece is sleeved on the periphery of a second pipeline and is fixedly connected with the second pipeline, and the first connecting piece and the second connecting piece are fixedly connected through a bolt and nut pair. The sealing ring is arranged between the first connecting piece and the second connecting piece, an inner ring convex rib and an outer ring convex rib are arranged on the sealing ring, the inner ring convex rib and the outer ring convex rib both protrude out of the surface of the sealing ring, and a first groove matched with the sealing ring is formed in the end, facing the second connecting piece, of the first connecting piece; a second groove matched with the sealing ring is formed in the position, corresponding to the first groove, of the second connecting piece. By the adoption of the double-sealing protection device, double-sealing protection can be achieved, fluid in the pipe is prevented from leaking, sealing components of a pipeline system are safe and reliable, and safety accidents are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline connection, and in particular relates to a leakage-proof pipeline sealing structure. Background Art

[0002] Sealing components are indispensable parts in the pipeline system, and gaskets and O-rings are all part of the sealing components. However, in some pipeline systems, especially high-pressure pipelines, the sealing effect of the pipeline system is often poor. The fundamental reason is that the contact surface of the connector is uneven, and simple flat gaskets or connectors using O-rings only have grooves on one side, which are prone to leakage risks and cannot achieve complete sealing function. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a leakage-proof pipeline sealing structure, which can effectively solve the problem that the existing technology has leakage risks for the pipeline system and cannot achieve a complete sealing function.

[0004] In order to solve the above technical problems, the technical solutions adopted by the utility model are as follows:

[0005] A leak-proof pipeline sealing structure comprises a first pipeline, a second pipeline, a first connecting piece, a second connecting piece, a bolt and nut pair and a sealing ring, wherein the first connecting piece is sleeved on the outer circumference of the first pipeline and fixedly connected to the first pipeline, the second connecting piece is sleeved on the outer circumference of the second pipeline and fixedly connected to the second pipeline, the first connecting piece and the second connecting piece are fixedly connected by the bolt and nut pair, the sealing ring is arranged between the first connecting piece and the second connecting piece, the sealing ring is provided with an inner ring convex rib and an outer ring convex rib, the inner ring convex rib and the outer ring convex rib both protrude from the surface of the sealing ring, the first connecting piece is provided with a first groove cooperating with the sealing ring at one end facing the second connecting piece, and the second connecting piece is provided with a second groove cooperating with the sealing ring at a position corresponding to the first groove.

[0006] As a preferred embodiment of the present invention, the width of the first groove is consistent with the width of the second groove, the width of the inner ring rib is consistent with the width of the outer ring rib, and the width of the first groove and the width of the second groove are both greater than the width of the inner ring rib and the width of the outer ring rib.

[0007] As a preferred solution of the present invention, both sides of the groove bottom of the first groove and both sides of the groove bottom of the second groove are provided with chamfered corners.

[0008] As a preferred solution of the utility model, the compression rate of the sealing ring is 20%.

[0009] As a preferred solution of the utility model, a first through hole is provided on the first connecting member, and a second through hole is provided on the second connecting member corresponding to the first through hole. The bolts of the bolt and nut pair pass through the first through hole and the second through hole in sequence and are threadedly connected with the nuts of the bolt and nut pair.

[0010] As a preferred solution of the utility model, a gasket is provided between the nut of the bolt-nut pair and the second connecting member.

[0011] The anti-leakage pipeline sealing structure provided by the utility model has the following beneficial effects compared with the prior art:

[0012] In the pipeline system, the inner ring convex rib and the outer ring convex rib of the sealing ring are embedded in the first groove and the second groove. Under the action of the bolt and nut pair, the upper and lower ends of the ring convex rib and the outer ring convex rib are tightly fitted with the first groove and the second groove respectively, thereby realizing the sealing function; under the action of the fluid pressure in the pipe, the ring convex rib and the outer ring convex rib can be tightly fitted with the side wall of the first groove and the side wall of the second groove, thereby preventing the fluid in the pipe from leaking; in addition, since the inner ring convex rib and the outer ring convex rib are respectively arranged at the inner and outer ends of the sealing ring, double sealing effects can be achieved, further ensuring the sealing and leak-proof effects of the pipeline; adopting the utility model, double sealing protection can be achieved to prevent leakage of the fluid in the pipe, ensure the safety and reliability of the sealing components of the pipeline system, and avoid causing safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0014] Figure 1 It is a structural schematic diagram of a leakage-proof pipeline sealing structure provided by an embodiment of the utility model;

[0015] Figure 2 For Figure 1 A partial enlarged view of point A;

[0016] Figure 3 It is a structural schematic diagram of the sealing ring;

[0017] Figure 4 A cross-sectional view of the sealing ring.

[0018] Markings in the figure:

[0019] The first pipe 1; the second pipe 2; the first connecting member 3; the first groove 301; the first through hole 302; the second connecting member 4; the second groove 401; the second through hole 402; the bolt and nut pair 5; the sealing ring 6; the inner ring rib 601; the outer ring rib 602. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. It should be understood that the terms "first", "second", etc. are used in the present utility model to describe various information, but such information should not be limited to these terms, which are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present utility model, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information.

[0022] like Figures 1 to 4 As shown, a preferred embodiment of the utility model provides a leak-proof pipeline sealing structure, which includes a first pipeline 1, a second pipeline 2, a first connecting member 3, a second connecting member 4, a bolt and nut pair 5 and a sealing ring 6, wherein the first connecting member 3 is sleeved on the outer periphery of the first pipeline 1 and is fixedly connected to the first pipeline 1, the second connecting member 4 is sleeved on the outer periphery of the second pipeline 2 and is fixedly connected to the second pipeline 2, the first connecting member 3 and the second connecting member 4 are fixedly connected by the bolt and nut pair 5, the sealing ring 6 is arranged between the first connecting member 3 and the second connecting member 4, an inner ring convex rib 601 and an outer ring convex rib 602 are provided on the sealing ring 6, the inner ring convex rib 601 and the outer ring convex rib 602 both protrude from the surface of the sealing ring 6, the first connecting member 3 is provided with a first groove 301 matched with the sealing ring 6 at one end facing the second connecting member 4, and a second groove 401 matched with the sealing ring 6 is provided at a position corresponding to the first groove 301 on the second connecting member 4; specifically, the compression rate of the sealing ring 6 is 20%.

[0023] In the pipeline system, the inner ring convex rib 601 and the outer ring convex rib 602 of the sealing ring 6 are embedded in the first groove 301 and the second groove 401. Under the action of the bolt and nut pair 5, the upper and lower ends of the ring convex rib and the outer ring convex rib 602 are tightly fitted with the first groove 301 and the second groove 401 respectively, thereby achieving a sealing function; under the action of the fluid pressure in the pipe, the ring convex rib and the outer ring convex rib 602 can be tightly fitted with the side wall of the first groove 301 and the side wall of the second groove 401, thereby preventing the fluid in the pipe from leaking; in addition, since the inner ring convex rib 601 and the outer ring convex rib 602 are respectively arranged at the inner and outer ends of the sealing ring 6, double sealing effects can be achieved, further ensuring the sealing and leak-proof effects of the pipeline; the use of the utility model can achieve double sealing protection, prevent leakage of the fluid in the pipe, ensure the safety and reliability of the sealing components of the pipeline system, and avoid safety accidents.

[0024] Exemplarily, the width of the first groove 301 is consistent with the width of the second groove 401, the width of the inner ring rib 601 is consistent with the width of the outer ring rib 602, and the width of the first groove 301 and the width of the second groove 401 are both greater than the width of the inner ring rib 601 and the width of the outer ring rib 602. In this embodiment, the width of the first groove 301 and the width of the second groove 401 are approximately 1 mm greater than the width of the inner ring rib 601 and the width of the outer ring rib 602. In this way, the deviation problem caused by the centering of the pipeline can be effectively solved, and the sealing effect of the sealing ring 6 can be ensured.

[0025] Exemplarily, both sides of the bottom of the first groove 301 and both sides of the bottom of the second groove 401 are provided with rounded corners, thereby preventing the sealing ring 6 from being scratched and ensuring the service life of the sealing ring 6.

[0026] Exemplarily, a first through hole 302 is provided on the first connecting member 3, and a second through hole 402 is provided on the second connecting member 4 at a position corresponding to the first through hole 302, and the bolts of the bolt and nut pair 5 pass through the first through hole 302 and the second through hole 402 in sequence to be threadedly connected with the nuts of the bolt and nut pair 5.

[0027] Exemplarily, in order to ensure the connection between the bolt-nut pair 5 , the first connecting member 3 , and the second connecting member 4 , a gasket is provided between the nut of the bolt-nut pair 5 and the second connecting member 4 .

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A leak-proof pipeline sealing structure, characterized in that: The invention comprises a first pipe, a second pipe, a first connecting piece, a second connecting piece, a bolt and nut pair and a sealing ring, wherein the first connecting piece is sleeved on the outer circumference of the first pipe and fixedly connected to the first pipe, the second connecting piece is sleeved on the outer circumference of the second pipe and fixedly connected to the second pipe, the first connecting piece and the second connecting piece are fixedly connected by the bolt and nut pair, the sealing ring is arranged between the first connecting piece and the second connecting piece, an inner ring convex rib and an outer ring convex rib are arranged on the sealing ring, the inner ring convex rib and the outer ring convex rib both protrude from the surface of the sealing ring, a first groove cooperating with the sealing ring is arranged on one end of the first connecting piece facing the second connecting piece, and a second groove cooperating with the sealing ring is arranged at a position corresponding to the first groove on the second connecting piece.

2. The anti-leakage pipeline sealing structure according to claim 1, characterized in that: The width of the first groove is consistent with the width of the second groove, the width of the inner ring rib is consistent with the width of the outer ring rib, and the width of the first groove and the width of the second groove are both greater than the width of the inner ring rib and the outer ring rib.

3. The anti-leakage pipeline sealing structure according to claim 1, characterized in that: Both sides of the bottom of the first groove and both sides of the bottom of the second groove are provided with rounded corners.

4. The anti-leakage pipeline sealing structure according to claim 1, characterized in that: The compression rate of the sealing ring is 20%.

5. The anti-leakage pipeline sealing structure according to claim 1, characterized in that: The first connecting member is provided with a first through hole, the second connecting member is provided with a second through hole at a position corresponding to the first through hole, and the bolts of the bolt and nut pair pass through the first through hole and the second through hole in sequence and are threadedly connected with the nuts of the bolt and nut pair.

6. The anti-leakage pipeline sealing structure according to claim 5, characterized in that: A gasket is provided between the nut of the bolt-nut pair and the second connecting member.

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