Valve flange with high sealing performance

Abstract

The utility model discloses a valve flange with strong sealing performance, which comprises a connecting pipe, a valve is mounted at one end of the connecting pipe, a turntable is arranged on the valve, flanges are arranged at the joints of the connecting pipe and the outer wall of the valve, and connecting holes I are formed in the flanges in a penetrating manner. The utility model has the beneficial effects that the protective components are arranged, the grooves III are arranged at the joints between the protective components, the grooves I and the grooves II are respectively arranged on the protective components, the outer wall of the connecting pipe and the outer wall of the valve, the adaptive sealing rubber strips III are arranged in the grooves III, and the adaptive sealing rubber strips II are arranged in the grooves I and the grooves II; the connecting part of the connecting pipe and the valve is protected, leakage of the connecting part is prevented, meanwhile, corrosion and oxidation of air and rainwater to the connecting part are isolated, the connecting part is high in sealing performance, the connecting part cannot be corroded or damaged, leakage cannot occur, and the using requirements of people can be well met.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve flange with strong sealing performance. Background Art

[0002] Valves can effectively open pipelines and become important parts in transmission equipment. Relevant industrial valves are used in various industrial productions. Industrial valves are used to control and transport the flow of media transmitted in production pipelines. In the process of connecting valves and pipelines, the valve flange is often used to tighten the connection with the flange on the pipeline. However, when the liquid is transmitted in the pipeline, there is liquid pressure, and efficient sealing is required.

[0003] The Chinese patent with announcement number CN21722195U discloses an industrial valve with flange seal, which relates to the field of valve technology, including a valve body, a connecting pipe, a flange and a connecting plate. The valve body and the flange are fixedly connected, and the number of the flanges is set to two. The connecting pipe and the connecting plate are fixedly connected. A first sealing groove is provided on one side of the flange, and a second sealing groove is provided on one side of the connecting plate. A sealing ring is placed on the inner wall of the first sealing groove, and the inner wall of the sealing ring matches the outer wall of the sealing ring. A first mounting groove is provided on one side of the flange, and a first sealing member is fixedly connected to the inner wall of the first mounting groove. A second mounting groove is provided on one side of the connecting plate, and a second sealing member is fixedly connected to the inner wall of the second mounting groove. One side of the first seal and one side of the second seal match each other.

[0004] The industrial valve with flange seal described in the above patent, when in use, water flows through the flange to squeeze the first seal and the second seal, and the first seal will be close to the inside of the second seal, thereby effectively enhancing the sealing performance. However, after long-term use, the device will have poor sealing performance at the flange connection due to long-term excessive internal pressure, and the flange connection will be corroded and damaged, resulting in leakage, which cannot well meet people's usage needs. Utility Model Content

[0005] (1) Technical issues to be resolved

[0006] The technical problem to be solved by the utility model is to provide a valve flange with strong sealing performance in response to the current status of the existing technology, which will not be corroded or damaged and will not leak, and can well meet people's usage needs.

[0007] (2) Technical solution

[0008] The utility model is achieved through the following technical solution: it includes a connecting pipe, a valve is installed at one end of the connecting pipe, a turntable is provided on the valve, a flange is provided at the connection between the connecting pipe and the outer wall of the valve, a connecting hole 1 is penetrated through the flange, a protective component is installed on the outside of the flange, a connecting hole 2 is penetrated through the protective component, a groove 1 and a groove 2 are provided at the connection between the protective component, the connecting pipe and the valve, the groove 1 is formed on the protective component, and the groove 2 is formed on the valve, a groove 3 is provided on the side of the protective component close to the flange, a sealing strip 2 is installed in each of the groove 1 and the groove 2, and a sealing strip 3 is installed in the groove 3.

[0009] Furthermore, an inner-tube groove is provided at the connection between the connecting pipe and the inner wall of the valve, and a sealing strip is installed in the inner-tube groove.

[0010] By adopting the above technical solution, the sealing strip can be made to seal the groove in the pipe.

[0011] Furthermore, the connecting pipe is connected to the valve flange, and the valve is rotatably connected to the turntable.

[0012] By adopting the above technical solution, the connecting pipe and the valve can be connected together.

[0013] Furthermore, thickened edges are provided at the connection points between the protection component, the connecting pipe and the valve.

[0014] By adopting the above technical solution, the contact surface between the protection component, the connecting pipe and the valve can be made larger.

[0015] Furthermore, the connecting pipe is welded to the flange, and the valve is welded to the flange.

[0016] By adopting the above technical solution, the contact surface between the connecting pipe and the valve can be made larger.

[0017] Furthermore, there are two groups of protective components, which are symmetrical structures.

[0018] By adopting the above technical solution, the protective component isolates the flange from air and rainwater.

[0019] Furthermore, the two groups of protection components are connected by bolts, and both groups of protection components are provided with through holes for installing bolts.

[0020] By adopting the above technical solution, the two groups of protection components can be connected together.

[0021] (3) Beneficial effects

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] In order to solve the problem that traditional valve flanges with strong sealing performance will have poor sealing performance at the flange connection after long-term use due to long-term excessive internal pressure, and the flange connection will be corroded and damaged, resulting in leakage, which cannot well meet people's usage needs, the utility model provides a protective component, and provides a groove three at the connection between the protective components, and provides a groove one and a groove two on the protective component and the outer wall of the connecting pipe and the outer wall of the valve respectively, and provides an adaptive sealing strip three in the groove three, and provides an adaptive sealing strip two in the groove one and the groove two, so as to protect the connection between the connecting pipe and the valve to prevent leakage at the connection, and at the same time isolate the connection from corrosion and oxidation of air and rainwater, so that the connection has strong sealing performance, will not be corroded and damaged, and will not leak, which can well meet people's usage needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of a valve flange with strong sealing performance described in the utility model;

[0025] Figure 2 This is a side sectional view of a valve flange with strong sealing performance described in the utility model;

[0026] Figure 3 This is a valve flange with strong sealing performance described in this utility model. Figure 2 Enlarged view of point A in the middle.

[0027] The following are the descriptions of the reference numerals:

[0028] Connecting pipe; 2. Valve; 3. Turntable; 4. Groove in the pipe; 5. Sealing strip 1; 6. Flange; 7. Connecting hole 1; 8. Protective component; 9. Connecting hole 2; 10. Thickened edge; 11. Groove 1; 12. Groove 2; 13. Groove 3; 14. Sealing strip 2; 15. Sealing strip 3. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] like Figure 1-Figure 3As shown, a valve flange with strong sealing performance in this embodiment includes a connecting pipe 1, a valve 2 is installed at one end of the connecting pipe 1, a turntable 3 is provided on the valve 2, a flange 6 is provided at the connection between the connecting pipe 1 and the outer wall of the valve 2, a connecting hole 1 7 is penetrated on the flange 6, a protective member 8 is installed on the outside of the flange 6, a connecting hole 2 9 is penetrated on the protective member 8, a groove 11 and a groove 2 12 are provided at the connection between the protective member 8 and the connecting pipe 1 and the valve 2, the groove 11 is formed on the protective member 8, and the groove 2 12 is formed on the valve 2, a groove 3 13 is provided on the side of the protective member 8 close to the flange 6, a sealing strip 2 14 is installed in the groove 11 and the groove 2 12, and a sealing strip 3 15 is installed in the groove 3 13, the thickened edge 10 realizes enhanced protection and sealing of the side walls of the connecting pipe 1 and the valve 2, the sealing strip 3 15 seals the connection between the protective member 8, and the sealing strip 2 14 seals the connection between the protective member 8 and the connecting pipe 1 and the valve 2.

[0031] like Figure 1-Figure 3 As shown, in this embodiment, a groove 4 is provided at the connection between the connecting pipe 1 and the inner wall of the valve 2, and a sealing strip 5 is installed in the groove 4 to seal the groove 4. The connecting pipe 1 is flange-connected to the valve 2, and the valve 2 is rotatably connected to the turntable 3, so that the connecting pipe 1 and the valve 2 can be connected together. A thickened edge 10 is provided at the connection between the protective component 8 and the connecting pipe 1 and the valve 2, so that the contact surface between the protective component 8 and the connecting pipe 1 and the valve 2 can be larger. The connecting pipe 1 is welded to the flange 6, and the valve 2 is welded to the flange 6, so that the contact surface between the connecting pipe 1 and the valve 2 can be larger. There are two groups of protective components 8, which are symmetrical structures. The protective components 8 isolate the flange 6 from air and rainwater. The two groups of protective components 8 are connected by bolts, and the two groups of protective components 8 are provided with through holes for installing bolts, so that the two groups of protective components 8 can be connected together.

[0032] The specific implementation process of this embodiment is as follows: when in use, the sealing strip 1 5 is placed in the groove 4 in the pipe, the flange 6 of the connecting pipe 1 and the valve 2 are adapted and fit tightly, the connecting pipe 1 and the valve 2 are bolted together, the sealing strip 2 14 is placed in the groove 2 12, the protective component 8 is installed, the sealing strip 3 15 is placed in the groove 3 13, and the protective components 8 are bolted together to protect the flange 6 to prevent leakage at the flange 6. At the same time, the flange 6 is isolated from corrosion and oxidation by air and rainwater. The flange 6 connection has strong sealing performance, and the flange 6 connection will not be corroded or damaged, and no leakage will occur, which can well meet people's usage needs.

[0033] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A valve flange with strong sealing performance, characterized by: The invention comprises a connecting pipe (1), wherein a valve (2) is installed at one end of the connecting pipe (1), a rotary disk (3) is provided on the valve (2), a flange (6) is provided at the connection between the connecting pipe (1) and the outer wall of the valve (2), a connecting hole (7) is provided through the flange (6), a protective component (8) is provided on the outside of the flange (6), a connecting hole (9) is provided through the protective component (8), a groove (11) and a groove (12) are provided at the connection between the protective component (8), the connecting pipe (1) and the valve (2), the groove (11) is formed on the protective component (8), and the groove (12) is formed on the valve (2), a groove (3) is provided on the side of the protective component (8) close to the flange (6), a sealing strip (2) (14) is provided in the groove (11) and the groove (12), and a sealing strip (3) (15) is provided in the groove (13).

2. A valve flange with strong sealing performance according to claim 1, characterized in that: An inner pipe groove (4) is provided at the connection point between the connecting pipe (1) and the inner wall of the valve (2), and a sealing strip (5) is installed in the inner pipe groove (4).

3. The valve flange with strong sealing performance according to claim 1, characterized in that: The connecting pipe (1) is flange-connected to the valve (2), and the valve (2) is rotationally connected to the turntable (3).

4. The valve flange with strong sealing performance according to claim 1, characterized in that: Thickened edges (10) are provided at the connection points between the protective component (8), the connecting pipe (1) and the valve (2).

5. The valve flange with strong sealing performance according to claim 1, characterized in that: The connecting pipe (1) is welded to the flange (6), and the valve (2) is welded to the flange (6).

6. The valve flange with strong sealing performance according to claim 1, characterized in that: There are two groups of protective components (8) in total, which are symmetrical structures.

7. The valve flange with strong sealing performance according to claim 6, characterized in that: The two groups of protective components (8) are connected by bolts, and through holes for installing the bolts are provided on the two groups of protective components (8).

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