High-pressure pipeline seal

Abstract

The utility model discloses a high-pressure pipeline seal in the technical field of pipeline seal, which comprises a seal body, a groove is arranged on the periphery of the right side wall of the seal body, an arc-shaped groove is arranged on the periphery of the inner side wall of the seal body, a positioning slope is arranged on the periphery of the right side of an inner cavity of the arc-shaped groove, and a chamfer is arranged on the periphery of the right side of the outer side wall of the seal body. An inner sealing lip is fixedly connected to the periphery of the left side wall of the sealing body, a first annular groove is formed in the periphery of the left side of the outer side wall of the sealing body, and a second annular groove is formed in the periphery of the outer side wall of the sealing body and located on the right side of the first annular groove. After the sealing body is subjected to pressure, the sealing body deforms to be sealed with the pipeline, so that the sealing body and the inner sealing lip can be tightly attached to the pipeline, the sealing effect can be improved, and the situation that the sealing performance is affected due to local leakage caused by excessive deformation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline sealing, in particular to a high-pressure pipeline seal. Background Art

[0002] Hydraulic cylinders are widely used in forging, engineering machinery, steel and metallurgy industries. Their pressure-bearing performance and life directly affect the use effect of the assembly, and the sealing effect of the sealing ring directly affects the pressure-bearing performance and service life of the assembly.

[0003] The sealing performance of traditional sealing rings is mostly provided by the deformation of the elastomer itself. It can be used normally in a relatively pressure-balanced environment. However, it will deform excessively when used in a high-pressure environment, which can easily cause local leakage and lead to sealing failure. For this reason, we have proposed a high-pressure pipeline seal. Utility Model Content

[0004] The utility model aims to provide a high-pressure pipeline seal to solve the problem in the above background technology that excessive deformation may occur when used in a high-pressure environment, which may easily cause local leakage and lead to seal failure.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-pressure pipeline seal, including a sealing body, a groove is formed around the right side wall of the sealing body, an arc-shaped groove is formed around the inner side wall of the sealing body, a positioning slope is formed around the right side of the inner cavity of the arc-shaped groove, a chamfer is formed around the right side of the outer side wall of the sealing body, an inner sealing lip is fixedly connected around the left side wall of the sealing body, a first annular groove is formed around the left side of the outer side wall of the sealing body, and a second annular groove is formed around the outer side wall of the sealing body and located on the right side of the first annular groove.

[0006] As a further description of the above technical solution:

[0007] The sealing body and the inner sealing lip are an integrally formed structure, and the sealing body and the inner sealing lip are made of fluororubber material.

[0008] As a further description of the above technical solution:

[0009] The end surface structure of the sealing body is in a K-shape.

[0010] As a further description of the above technical solution:

[0011] The end surface structure of the groove is trapezoidal.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the high-pressure pipeline seal, the sealing body and the inner sealing lip are an integrally formed structure, and are made of fluororubber material, an angle is formed between the sealing body and the inner sealing lip on the left, and at the same time, a groove is opened on the right side of the sealing body, and an arc groove is opened around the inner side of the sealing body, so that the sealing body has a certain amount of deformation. After the sealing body is subjected to pressure, the sealing body deforms to seal with the pipeline, so that the sealing body and the inner sealing lip can fit tightly with the pipeline, thereby improving the sealing effect and avoiding local leakage caused by excessive deformation, which affects the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a high-pressure pipeline seal proposed by the utility model;

[0014] Figure 2 This is a schematic diagram of the main cross-sectional structure of a high-pressure pipeline seal proposed by the utility model.

[0015] In the figure: 100, sealing body; 110, groove; 120, arc groove; 121, positioning slope; 130, chamfer; 140, inner sealing lip; 150, first annular groove; 160, second annular groove. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" 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. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" 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 indirectly connected 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.

[0019] The utility model provides a high-pressure pipeline seal, which can improve the sealing effect and avoid local leakage caused by excessive deformation, which affects the sealing performance. Figure 1-2 , comprising a sealing body 100;

[0020] Please refer again Figure 1-2 A groove 110 is formed around the right side wall of the sealing body 100, and an arc groove 120 is formed around the inner side wall of the sealing body 100. The arc groove 120 is used to control the deformation of the right side of the sealing body 100. A positioning slope 121 is formed around the right side of the inner cavity of the arc groove 120. The positioning slope 121 is used to position and install the pipeline. A chamfer 130 is formed around the right side of the outer side wall of the sealing body 100. The chamfer 130 is used to position and install the sealing body 100. An inner sealing lip 140 is fixedly connected to the left side wall of the sealing body 100. The inner sealing lip 140 is used to cooperate with the sealing body 100 to seal the pipeline. A first annular groove 150 is formed around the left side of the outer side wall of the sealing body 100. The first annular groove 150 is used to cooperate with the second annular groove 160 to install and fix the sealing body 100. The outer side wall of the sealing body 100 is formed around and is located on the right side of the first annular groove 150. A second annular groove 160 is opened on the side, the sealing body 100 and the inner sealing lip 140 are an integrally formed structure, the sealing body 100 and the inner sealing lip 140 are made of fluororubber material, the end face structure of the sealing body 100 is K-shaped, the end face structure of the groove 110 is trapezoidal, the sealing body 100 and the inner sealing lip 140 are an integrally formed structure, and are made of fluororubber material, an angle is formed between the sealing body 100 and the left inner sealing lip 140, and at the same time, the groove 110 is opened on the right side of the sealing body 100, and an arc groove 120 is opened around the inner side of the sealing body 100, so that the sealing body 100 has a certain amount of deformation. After the sealing body 100 is subjected to pressure, the sealing body 100 is deformed to seal with the pipeline, so that the sealing body 100 and the inner sealing lip 140 can fit tightly with the pipeline.

[0021] In summary, the sealing effect can be improved, and local leakage caused by excessive deformation can be avoided, which affects the sealing performance.

[0022] During specific use, when a person skilled in the art uses a sealing ring to seal a high-pressure pipeline, the sealing body 100 is placed between two pipelines and installed and connected through pipe fittings. When the high-pressure pipeline is in operation, a relatively large pressure is generated inside, and an angle is formed between the sealing body 100 and the inner sealing lip 140 on the left. At the same time, a groove 110 is provided on the right side of the sealing body 100, and an arc groove 120 is provided around the inner side of the sealing body 100, so that the sealing body 100 has a certain amount of deformation. The sealing body 100 is deformed to seal between the pipeline and the pipe fitting, so that the sealing body 100 and the inner sealing lip 140 can fit tightly between the pipeline and the pipe fitting.

[0023] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0024] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A high pressure pipeline seal, characterized in that: The invention comprises a sealing body (100), wherein a groove (110) is formed around the right side wall of the sealing body (100), an arc-shaped groove (120) is formed around the inner side wall of the sealing body (100), a positioning slope (121) is formed around the right side of the inner cavity of the arc-shaped groove (120), a chamfer (130) is formed around the right side of the outer side wall of the sealing body (100), an inner sealing lip (140) is fixedly connected around the left side wall of the sealing body (100), a first annular groove (150) is formed around the left side of the outer side wall of the sealing body (100), and a second annular groove (160) is formed around the outer side wall of the sealing body (100) and is located on the right side of the first annular groove (150).

2. A high pressure pipeline seal according to claim 1, characterized in that: The sealing body (100) and the inner sealing lip (140) are an integrally formed structure, and the sealing body (100) and the inner sealing lip (140) are made of fluororubber material.

3. A high pressure pipeline seal according to claim 1, characterized in that: The end surface structure of the sealing body (100) is in a K-shape.

4. A high pressure pipeline seal according to claim 1, characterized in that: The end surface structure of the groove (110) is in a trapezoidal shape.

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