V-shaped non-metal sealing element

Abstract

The utility model relates to the technical field of oil exploitation, and discloses a V-shaped nonmetal sealing element which comprises a first sealing element, a groove and a protruding block, a second sealing element is connected to the outer side of the first sealing element in a sleeved mode, the first sealing element and the second sealing element are both rubber sealing elements, and the protruding block is arranged in the groove. The cross section of the first sealing piece and the cross section of the second sealing piece are integrally of a V-shaped structure, and the first sealing piece comprises a first ring body. According to the V-shaped non-metal sealing element, the first sealing ring and the second sealing ring are arranged, when the second ring body is arranged on the outer side of the first ring body in a sleeving mode, the second sealing ring abuts against the first sealing ring, and the first sealing ring is matched with the second sealing ring, the sealing effect of the first sealing ring is improved; the protruding block is aligned with the groove, the protruding block is installed in the groove in a screwing-in mode, in the process that the protruding block is installed in the groove, the limiting ring is inserted into the ring groove, the connecting effect is improved, the friction force between the protruding block and the groove is large, the protruding block and the groove are not prone to disengagement, the assembling mode is simple, and the operation difficulty is small.

Description

Technical Field

[0001] The utility model relates to the technical field of oil extraction, and particularly relates to a V-shaped non-metallic seal. Background Art

[0002] Oil extraction refers to the process of transporting oil from oil production areas, oil fields or oil wells to processing plants, refineries or consumption areas. It is a complex system involving various facilities and technologies, covering the entire process from crude oil extraction to the distribution of final products. When the oil extraction system is deployed and installed, the joints of pipelines need to be sealed, and usually, a V-shaped non-metallic seal is required.

[0003] Referring to the Chinese utility model patent with the publication number CN213685717U, it specifically discloses a V-shaped seal. A sleeve is installed on the rear end face of the V-shaped sealing ring. A V-shaped groove is arranged on the front end face of the V-shaped sealing ring. A fixing ring is arranged inside the V-shaped groove. A through hole is arranged inside the fixing ring. A connecting pipe is installed in the through hole, and the connecting pipe passes through the sleeve. A fixing sleeve is installed on the inner wall of the fixing ring. A limiting block is installed on the fixing sleeve, and six limiting blocks are provided. A spring is installed inside the limiting block. A sealing ring is installed on one side of the fixing sleeve. The V-shaped sealing ring with such a structure is provided with limiting blocks inside the V-shaped sealing ring, and springs are arranged inside the limiting blocks. During installation, when the limiting block is above the limiting groove, the spring makes the limiting block fixedly connected to the limiting groove. At the same time, an anti-slip pad is installed inside the sleeve of the V-shaped sealing ring, which improves its stability during use and avoids the phenomenon of displacement. The V-shaped seal with such a structure needs to be composed of multiple independent components cooperating with each other. The overall composition structure is complex, and such a matching structure brings certain troubles to assembly and use, and the overall practicability is poor. Summary of the Invention

[0004] The purpose of the utility model is to provide a V-shaped non-metallic seal solution with a simple structure and convenient use, so as to effectively solve the problems in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A V-shaped non-metallic seal includes a first seal, a groove and a convex block. A second seal is sleeved outside the first seal. Both the first seal and the second seal are rubber seals. The cross-sections of the first seal and the second seal are integrally in a "V" shape. The first seal includes a first ring body, and a groove is opened on the outside of the first ring body. The second seal includes a second ring body, and a convex block is fixedly connected to the inner wall of the second ring body.

[0007] Preferably, the first seal further includes a first sealing ring, a limiting edge, a groove and a ring groove. A first sealing ring is provided at the front end of the first ring body, a limiting edge is provided on the outer side of the first ring body, and a limiting edge is defined by the groove opened on the outer side of the first ring body.

[0008] Through the above technical solution, the first seal is provided and cooperates with the second seal, resulting in a good sealing effect.

[0009] Preferably, the second seal further includes a second sealing ring, a convex block and a limiting ring. A second sealing ring is provided at the front end of the second ring body, and a limiting ring is provided inside the second ring body.

[0010] Through the above technical solution, the second seal is provided and sleeved outside the first seal, enhancing the sealing effect in combination.

[0011] Preferably, the outer diameter of the first ring body is equal to the inner diameter of the second ring body, and both the first seal and the second seal are made of fluorosilicone rubber.

[0012] Through the above technical solution, the second ring body is sleeved outside the first ring body, making the installation relatively simple.

[0013] Preferably, the included angle between the first ring body and the first sealing ring is 120° - 130°. Further, the included angle between the second ring body and the second sealing ring is 145° - 160°.

[0014] Through the above technical solution, the first sealing ring and the second sealing ring are provided. When the second ring body is sleeved outside the first ring body, the second sealing ring abuts against the first sealing ring, and the first sealing ring and the second sealing ring cooperate to enhance the sealing effect of the first sealing ring.

[0015] Preferably, the same number of grooves and convex blocks are provided, and the multiple grooves and convex blocks are adapted to each other. Further, the included angle between the convex block and the axis of the second ring body is 8° - 15°.

[0016] Through the above technical solution, the grooves and convex blocks are provided. When installing the first seal and the second seal, align the convex block with the groove and screw the convex block into the groove. The friction between the convex block and the groove is relatively large, making it not easy to separate.

[0017] Preferably, the limiting ring is adapted to the ring groove, and the cross-section of the limiting ring is in a circular structure.

[0018] Through the above technical solution, the limiting ring and the ring groove are provided. During the process of inserting the convex block into the groove, the limiting ring is inserted into the ring groove, enhancing the connection effect.

[0019] Compared with the prior art, the V-shaped non-metallic seal provided by the present utility model has the following beneficial effects:

[0020] 1. This V-shaped non-metallic seal is provided with a first sealing ring and a second sealing ring. When the second ring body is sleeved outside the first ring body, the second sealing ring abuts against the first sealing ring, and the first sealing ring and the second sealing ring cooperate with each other to improve the sealing effect of the first sealing ring.

[0021] 2. This V-shaped non-metallic seal is provided with a groove and a protrusion. When the first seal and the second seal are installed, the protrusion is aligned with the groove, and the protrusion is screwed into the groove. During the process of the protrusion being inserted into the groove, the limiting ring is inserted into the ring groove, which improves the connection effect. The friction between the protrusion and the groove is relatively large, so they are not easy to separate. The assembly method is simple, the operation difficulty is small, and the practicability is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a first perspective three-dimensional structural schematic diagram of the V-shaped non-metallic seal in the present utility model;

[0023] Figure 2 is a second perspective three-dimensional structural schematic diagram of the V-shaped non-metallic seal in the present utility model;

[0024] Figure 3 is a first perspective schematic diagram of the split structure of the first seal and the second seal in the present utility model;

[0025] Figure 4 is a second perspective schematic diagram of the split structure of the first seal and the second seal in the present utility model;

[0026] Figure 5 is a three-dimensional sectional structural schematic diagram of the V-shaped non-metallic seal in the present utility model;

[0027] Figure 6 is a three-dimensional sectional exploded structural schematic diagram of the V-shaped non-metallic seal in the present utility model.

[0028] Wherein: 1. First seal; 101. First ring body; 102. First sealing ring; 103. Limiting edge; 104. Groove; 105. Ring groove; 2. Second seal; 201. Second ring body; 202. Second sealing ring; 203. Protrusion; 204. Limiting ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] Embodiment 1:

[0031] As shown Figures 1-6 in the figure, this example provides a V-shaped non-metallic seal. The V-shaped non-metallic seal mainly includes a first seal 1 and a second seal 2 that cooperate with each other. Among them, a number of grooves 104 are provided on the first seal 1, and a number of protrusions 203 are provided on the second seal 2. The first seal 1 cooperates with the protrusions 203 on the second seal 2 through the grooves 104 thereon, so as to realize the organic combination between the first seal 1 and the second seal 2.

[0032] Specifically, the second seal 2 is sleeved outside the first seal 1. Both the first seal 1 and the second seal 2 are rubber seals. The cross-sections of the first seal 1 and the second seal 2 as a whole are in a "V" shape. The first seal 1 includes a first ring body 101, and grooves 104 are provided on the outside of the first ring body 101. The second seal 2 includes a second ring body 201, and protrusions 203 are fixedly connected to the inner wall of the second ring body 201. The grooves 104 and the protrusions 203 correspond and cooperate here.

[0033] As a further explanation, the first seal 1 in this example further includes a first sealing ring 102, a limiting edge 103, grooves 104 and a ring groove 105. A first sealing ring 102 is provided at the front end of the first ring body 101, and a limiting edge 103 is provided on the outside of the first ring body 101. The first seal 1 is set in this way and can cooperate with the second seal 2, and the sealing effect is good.

[0034] As a further explanation, the second seal 2 in this example further includes a second sealing ring 202, protrusions 203 and a limiting ring 204. A second sealing ring 202 is provided at the front end of the second ring body 201, and a limiting ring 204 is provided inside the second ring body 201. The second seal 2 set in this way is sleeved outside the first seal 1, and the combined sealing effect is improved.

[0035] As a further explanation, the outer diameter of the first ring body 101 in this example is equal to the inner diameter of the second ring body 201. Both the first seal 1 and the second seal 2 are made of fluorosilicone rubber. With such a structure, the second ring body 201 can be effectively sleeved outside the first ring body 101, and the installation is relatively simple.

[0036] Example Two:

[0037] As shown Figures 2-6 in the figure, on the basis of the V-shaped non-metallic seal composition scheme provided in Example One, this example further gives an optimized scheme.

[0038] In this embodiment, the included angle between the first annular body 101 and the first sealing ring 102 is set to be 120° - 130°, and the included angle between the second annular body 201 and the second sealing ring 202 is 145° - 160°. With such a setting, the cooperation structure between the first sealing ring 102 and the second sealing ring 202 is stable and reliable. When the second annular body 201 is sleeved outside the first annular body 101, the second sealing ring 202 abuts against the first sealing ring 102, and the first sealing ring 102 cooperates with the second sealing ring 202 to improve the sealing effect of the first sealing ring 102.

[0039] In this embodiment, a plurality of grooves 104 and protrusions 203 are provided and have the same structure. The plurality of grooves 104 are evenly distributed along the circumferential direction of the first annular body 101, and at the same time, the plurality of protrusions 203 are evenly distributed along the circumferential direction of the second annular body 201. At the same time, the plurality of grooves 104 are adapted to the protrusions 203, and the included angle between the protrusion 203 and the axis of the second annular body 201 is 8° - 15°. With such grooves 104 and protrusions 203, when the first seal 1 and the second seal 2 are installed, the protrusion 203 is aligned with the groove 104, and the protrusion 203 is screwed into the groove 104. The friction between the protrusion 203 and the groove 104 is large and it is not easy to separate.

[0040] In this embodiment, the limiting ring 204 is adapted to the annular groove 105, and the cross-section of the limiting ring 204 is circular. The advantage is that the limiting ring 204 and the annular groove 105 are provided. During the process of the protrusion 203 being inserted into the groove 104, the limiting ring 204 is inserted into the annular groove 105 to improve the connection effect.

[0041] For the V-shaped non-metallic seal formed by the above-mentioned example solution, the following is an example to illustrate its operation process.

[0042] Combined Figures 1 to 6 As shown, when this V-shaped non-metallic seal is applied, as a whole, it is composed of two components, the first seal 1 and the second seal 2, and the overall structure is simple and the operation is convenient.

[0043] Among them, when the first seal 1 and the second seal 2 are installed, the protrusion 203 is aligned with the groove 104, and the protrusion 203 is screwed into the groove 104. During the process of the protrusion 203 being inserted into the groove 104, the limiting ring 204 is inserted into the annular groove 105 to improve the connection effect. The friction between the protrusion 203 and the groove 104 is large and it is not easy to separate. The assembly method is simple. When the second annular body 201 is sleeved outside the first annular body 101, the second sealing ring 202 abuts against the first sealing ring 102, and the first sealing ring 102 cooperates with the second sealing ring 202 to improve the sealing effect of the first sealing ring 102.

[0044] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A V-shaped non-metallic seal, comprising a first seal (1), a groove (104) and a protrusion (203), characterized in that: The first sealing member (1) is sleeved with a second sealing member (2) on the outside. Both the first sealing member (1) and the second sealing member (2) are rubber sealing members. The cross-sections of the first sealing member (1) and the second sealing member (2) are of a "V"-shaped structure as a whole. The first sealing member (1) comprises a first ring body (101). A groove (104) is provided on the outside of the first ring body (101). The second sealing member (2) comprises a second ring body (201). A protrusion (203) is fixedly connected to the inner wall of the second ring body (201). The groove (104) and the protrusion (203) are both provided in a plurality of the same number. The plurality of grooves (104) and the protrusion (203) are matched with each other.

2. A V-shaped non-metallic seal according to claim 1, characterized in that: The first sealing member (1) further comprises a first sealing ring (102), a limiting edge (103), a groove (104) and an annular groove (105); the first sealing ring (102) is arranged at the front end of the first ring body (101); and the limiting edge (103) is arranged on the outer side of the first ring body (101).

3. A V-shaped non-metallic seal according to claim 2, characterized in that: The second sealing member (2) further comprises a second sealing ring (202), a protrusion (203) and a limiting ring (204); the second sealing ring (202) is arranged at the front end of the second ring body (201), and the limiting ring (204) is arranged inside the second ring body (201).

4. A V-shaped non-metallic seal according to claim 1, characterized in that: The outer diameter of the first ring body (101) is equal to the inner diameter of the second ring body (201), and the first sealing component (1) and the second sealing component (2) are both made of fluorosilicone rubber.

5. A V-shaped non-metallic seal according to claim 1, characterized in that: The included angle between the first ring body (101) and the first sealing ring (102) is 120° to 130°.

6. A V-shaped non-metallic seal according to claim 5, characterized in that: An included angle 2 between the second ring body (201) and the second sealing ring (202) is 145° to 160°.

7. A V-shaped non-metallic seal according to claim 1, characterized in that: The included angle between the protrusion (203) and the axis of the second ring body (201) is 8° to 15°.

8. A V-shaped non-metallic seal according to claim 3, characterized in that: The limiting ring (204) is matched with the annular groove (105), and the cross section of the limiting ring (204) is a circular structure.

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