Flange for valve with high sealing performance

Abstract

The utility model belongs to the technical field of flanges, and particularly relates to a high-sealing-performance flange for a valve, which comprises a first flange and a second flange, and the first flange and the second flange are provided with connecting structures. The connecting structure comprises a first groove, the first groove is formed in the middle of the outer side of the first flange, a second groove is formed in the inner wall of the first groove, a boss is fixedly installed in the middle of the inner wall of the second groove, and a conical sleeve is fixedly connected to the outer side of the boss. An annular protrusion on the left side of a second flange is inserted into a first groove, an annular inserting plate is inserted into an annular inserting groove, a first annular rubber ring is extruded, meanwhile, a conical sleeve is inserted into a conical connecting sleeve of the second flange, an annular plate penetrates through the conical connecting sleeve and is in threaded connection with the conical connecting sleeve through a second connecting sleeve to be fixed, and meanwhile a second annular rubber ring is extruded; due to multiple sealing, the sealing performance is improved, and the sealing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flanges, in particular to a flange for a high-sealing valve. Background Technique

[0002] The high-pressure seal of a valve means that under the action of high-pressure fluid, the valve can effectively cut off the fluid and ensure the sealing performance. Under the action of high-pressure fluid, the force and pressure inside the valve will increase. If the seal is not tight, dangerous situations such as leakage or pipe explosion will occur;

[0003] The principle of the high-pressure seal of a valve is achieved through the elastic deformation of materials. Under the action of high-pressure fluid, the sealing surface of the valve will be subjected to a certain force, causing the material to produce a certain deformation. When the fluid stops flowing, the material will return to its original state, thus achieving the seal.

[0004] The two sides of the existing valve are used to connect pipes, and flanges are required to connect them at the connection with the pipes. The conventional flange is sealed by installing an annular gasket between two flanges. The channel docking surface is a plane, which is prone to gaps and leakage, affecting the use efficiency.

[0005] Therefore, we invented a flange for a high-sealing valve. Content of the Utility Model

[0006] In view of the above and / or problems existing in an existing flange for a high-sealing valve, the present utility model is proposed.

[0007] Therefore, the purpose of the present utility model is to provide a flange for a high-sealing valve, which can solve the above-mentioned existing problems.

[0008] To solve the above technical problems, according to one aspect of the present utility model, the following technical solutions are provided:

[0009] A flange for a high-sealing valve, which includes: flange one and flange two, and the flange one and flange two are provided with a connection structure;

[0010] The connection structure includes:

[0011] A first groove, which is opened in the middle of the outer side of flange one. A second groove is opened on the inner wall of the first groove. A boss is fixedly installed in the middle of the inner wall of the second groove. A conical sleeve is fixedly connected to the outer side of the boss. One end of the conical sleeve away from the boss is fixedly connected to an annular plate, and an external thread is opened on the outer wall of the annular plate.

[0012] As a preferred embodiment of the flange for a highly sealed valve of the present utility model, wherein: on one side of the second flange close to the first flange, there is a fixedly connected annular protrusion, and the outer wall of the annular protrusion is slidably connected to the inner wall of the first groove.

[0013] As a preferred embodiment of the flange for a highly sealed valve of the present utility model, wherein: on the outer side of the second flange, there is a fixedly connected conical connecting sleeve, and on the outer wall of the conical connecting sleeve, there is a third annular groove, and on the inner wall of the third annular groove, there is a second annular rubber ring installed.

[0014] As a preferred embodiment of the flange for a highly sealed valve of the present utility model, wherein: on the outer wall of the annular plate, there is a second connecting sleeve threadedly connected.

[0015] As a preferred embodiment of the flange for a highly sealed valve of the present utility model, wherein: on the outer side of the inner wall of the second groove, there are two fixedly installed annular insertion plates.

[0016] As a preferred embodiment of the flange for a highly sealed valve of the present utility model, wherein: on the outer side of the annular protrusion, there are fixedly installed an annular plate one, an annular plate two, and an annular plate three in sequence from inside to outside. Between the annular plate one and the annular plate two and between the annular plate two and the annular plate three, there are annular slots, and the inner wall of the annular slots is slidably connected to the outer wall of the annular insertion plate.

[0017] As a preferred embodiment of the flange for a highly sealed valve of the present utility model, wherein: on the outer side of the annular insertion plate, there is a first annular groove, on the inner wall of the annular slot, there is a second annular groove, and on the inner wall of the second annular groove, there is a first annular rubber ring installed.

[0018] As a preferred embodiment of the flange for a highly sealed valve of the present utility model, wherein: on the outer side of the first flange, there are first positioning holes distributed in an annular array, and on the outer side of the second flange, there are second positioning holes distributed in an annular array.

[0019] Compared with the prior art:

[0020] Fix the outer side of the first flange to one end of the valve, insert the annular protrusion on the left side of the second flange into the first groove, insert the annular insertion plate into the annular slot, squeeze the first annular rubber ring, and at the same time insert the conical sleeve into the conical connecting sleeve of the second flange, pass the annular plate through the conical connecting sleeve and threadedly connect it with the second connecting sleeve to fix it. At the same time, it will squeeze the second annular rubber ring, achieving multiple seals, improving the sealing performance, and enhancing the sealing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the front view of the present utility model;

[0022] Figure 2 is a cross-sectional view of the present utility model Figure 1 ;

[0023] Figure 3 is an exploded front view of the present utility model Figure 1 ;

[0024] Figure 4 is a side view of the present utility model Figure 3 ;

[0025] In the figure: Flange 1, Groove 101, Groove 102, Ring-shaped Insert Plate 103, Ring-shaped Groove 104, Boss 105, Tapered Sleeve 106, Ring-shaped Plate 107, Connecting Sleeve 2 108, Flange 2, Ring-shaped Protrusion 201, Ring-shaped Plate 1 202, Ring-shaped Plate 2 203, Ring-shaped Plate 3 204, Ring-shaped Slot 205, Ring-shaped Groove 206, Tapered Connecting Sleeve 207, Ring-shaped Groove 3 208, Ring-shaped Rubber Ring 1 3, Ring-shaped Rubber Ring 2 4, Positioning Hole 1 5, Positioning Hole 2 6. Specific Embodiment

[0026] To make the objectives, technical solutions and advantages of the present utility model clearer, the following will further describe the embodiments of the present utility model in detail with reference to the drawings. Embodiment 1

[0027] The present utility model provides a flange for a high-sealing valve, which has the advantages of convenient use and improved efficiency. Please refer to Figures 1-4 , which includes Flange 1 and Flange 2, and the Flange 1 and Flange 2 are provided with a connection structure;

[0028] The connection structure includes:

[0029] Groove 101, which is opened in the middle of the outer side of Flange 1. The inner wall of Groove 101 is provided with Groove 102. The middle of the inner wall of Groove 102 is fixedly installed with Boss 105. The outer side of Boss 105 is fixedly connected with Tapered Sleeve 106. One end of Tapered Sleeve 106 away from Boss 105 is fixedly connected with Ring-shaped Plate 107. The outer wall of Ring-shaped Plate 107 is provided with external threads.

[0030] The side of Flange 2 close to Flange 1 is fixedly connected with Ring-shaped Protrusion 201, and the outer wall of Ring-shaped Protrusion 201 is slidably connected with the inner wall of Groove 101.

[0031] The outer side of Flange 2 is fixedly connected with Tapered Connecting Sleeve 207. The outer wall of Tapered Connecting Sleeve 207 is provided with Ring-shaped Groove 3 208, and the inner wall of Ring-shaped Groove 3 208 is installed with Ring-shaped Rubber Ring 2 4.

[0032] The outer wall of the annular plate 107 is threadedly connected with a second connecting sleeve 108.

[0033] A first set of positioning holes 5 are arranged in an annular array on the outer side of the first flange 1, and a second set of positioning holes 6 are arranged in an annular array on the outer side of the second flange 2.

[0034] In specific use, those skilled in the art fixedly connect the outer side of the first flange 1 to one end of the valve, insert the annular protrusion 201 on the left side of the second flange 2 into the first groove 101, and at the same time insert the tapered sleeve 106 into the tapered connecting sleeve 207 of the second flange 2. The annular plate 107 passes through the tapered connecting sleeve 207 and is threadedly connected with it through the second connecting sleeve 108 for fixation. At the same time, the second annular rubber ring 4 will be squeezed, and the first set of positioning holes 5 and the second set of positioning holes 6 are aligned and fixed with bolts. Then, the pipeline is fixedly connected to the outer side of the tapered connecting sleeve 207 on the outer side of the second flange 2. Embodiment 2

[0035] The present utility model provides a flange for a high-sealing valve. Please refer to Figures 1-4 On the outer side of the inner wall of the second groove 102, an annular insertion plate 103 is fixedly installed, and there are two sets of the annular insertion plates 103.

[0036] On the outer side of the annular protrusion 201, an annular plate one 202, an annular plate two 203, and an annular plate three 204 are fixedly installed in sequence from inside to outside. Annular slots 205 are provided between the annular plate one 202 and the annular plate two 203 and between the annular plate two 203 and the annular plate three 204. The inner wall of the annular slot 205 is slidably connected to the outer wall of the annular insertion plate 103.

[0037] On the outer side of the annular insertion plate 103, a first annular groove 104 is provided, and on the inner wall of the annular slot 205, a second annular groove 206 is provided. An annular rubber ring one 3 is installed on the inner wall of the second annular groove 206.

[0038] In specific use, those skilled in the art fixedly connect the outer side of the first flange 1 to one end of the valve, insert the annular protrusion 201 on the left side of the second flange 2 into the first groove 101, insert the annular insertion plate 103 into the annular slot 205, squeeze the annular rubber ring one 3, and at the same time insert the tapered sleeve 106 into the tapered connecting sleeve 207 of the second flange 2. The annular plate 107 passes through the tapered connecting sleeve 207 and is threadedly connected with it through the second connecting sleeve 108 for fixation. At the same time, the second annular rubber ring 4 will be squeezed, and the first set of positioning holes 5 and the second set of positioning holes 6 are aligned and fixed with bolts. Then, the pipeline is fixedly connected to the outer side of the tapered connecting sleeve 207 on the outer side of the second flange 2.

[0039] Although the present utility model has been described above with reference to the embodiments, various improvements can be made thereto and components thereof can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the features in the embodiments disclosed by the present utility model can be combined with each other in any way. The exhaustive description of these combinations is not given in this specification only for the consideration of saving space and resources. Therefore, the present utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A flange for a high-sealing valve, comprising a flange 1 (1) and a flange 2 (2), characterized in that: The flange 1 (1) and the flange 2 (2) are provided with a connection structure; The connection structure comprises: A groove one (101), wherein the groove one (101) is provided in the middle of the outer side of the flange one (1), and a groove two (102) is provided on the inner wall of the groove one (101), and a boss (105) is fixedly installed in the middle of the inner wall of the groove two (102), and a conical sleeve (106) is fixedly connected to the outer side of the boss (105), and an annular plate (107) is fixedly connected to one end of the conical sleeve (106) away from the boss (105), and an outer wall of the annular plate (107) is provided with an external thread.

2. A flange for a high sealing valve according to claim 1, characterized in that: A side of the flange 2 (2) close to the flange 1 (1) is fixedly connected with an annular protrusion (201), and the outer wall of the annular protrusion (201) is slidably connected to the inner wall of the groove 1 (101).

3. A flange for a high sealing valve according to claim 2, characterized in that: A conical connecting sleeve (207) is fixedly connected to the outer side of the second flange (2), an annular groove three (208) is formed on the outer wall of the conical connecting sleeve (207), and an annular rubber ring two (4) is installed on the inner wall of the annular groove three (208).

4. A flange for a valve with high sealing performance according to claim 3, characterized in that: The outer wall of the annular plate (107) is threadedly connected to a second connecting sleeve (108).

5. A flange for a valve with high sealing performance according to claim 4, characterized in that: An annular insert plate (103) is fixedly mounted on the outer side of the inner wall of the second groove (102), and two groups of the annular insert plates (103) are provided.

6. A flange for a valve with high sealing performance according to claim 5, characterized in that: An annular plate 1 (202), an annular plate 2 (203), and an annular plate 3 (204) are fixedly mounted on the outer side of the annular protrusion (201) in order from the inside to the outside, and an annular slot (205) is provided between the annular plate 1 (202) and the annular plate 2 (203) and between the annular plate 2 (203) and the annular plate 3 (204), and the inner wall of the annular slot (205) is slidably connected to the outer wall of the annular plug plate (103).

7. A flange for a valve with high sealing performance according to claim 6, characterized in that: The outer side of the annular plug plate (103) is provided with an annular groove 1 (104), the inner wall of the annular slot (205) is provided with an annular groove 2 (206), and the inner wall of the annular groove 2 (206) is provided with an annular rubber ring 1 (3).

8. A flange for a valve with high sealing performance according to claim 7, characterized in that: The outer side of the flange one (1) is provided with positioning holes one (5) distributed in a circular array, and the outer side of the flange two (2) is provided with positioning holes two (6) distributed in a circular array.

Images