Valve with high sealing performance

Abstract

The utility model discloses a valve with high sealing performance, which structurally comprises a valve body, a handle, a connecting port, a limiting hole and a sealing structure, the sealing structure is arranged on the outer side of the connecting port, and a first limiting groove and a second limiting groove which are arranged on the inner side of the sealing structure can enable an external connecting pipe to achieve a better sealing fit effect. The smooth layer is arranged on the inner side of the inner ring, the smoothness of the sealing face is improved, external pipe fittings can be more conveniently connected in a sealed mode, meanwhile, the sealing performance of the pipe fittings is effectively improved, the protective layer and the abrasion-resistant smooth layer are arranged on the inner side of the inner ring, the anti-corrosion performance of the inner ring is effectively improved through the protective layer, and the service life of the inner ring is prolonged. And due to the arrangement of the wear-resistant smooth layer, the flow of the valve body is increased, and the service life of the inner ring is further prolonged.

Description

Technical Field

[0001] The utility model discloses a valve with high sealing performance, belonging to the field of valves. Background Art

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure and flow) of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. Valves are control components in fluid conveying systems and have functions such as shut-off, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief. Valves used in fluid control systems have a wide variety of varieties and specifications, from the simplest shut-off valves to various valves used in extremely complex automatic control systems. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media.

[0003] A Chinese patent discloses a high-sealing valve (publication number: CN219263478U), including a valve body, the outer rings at both ends of the valve body are fixedly connected with connecting flanges, the inner cavity of the connecting flange is fixedly connected with a sealing air cushion 1, the outer surfaces at both ends of the valve body are provided with external sealing structures, the inner cavities at both ends of the valve body are provided with sealing grooves, and the inner cavity of the sealing groove is provided with an internal sealing structure. This high-sealing valve, through the setting of the external sealing structure, can seal the valve connection from the outside to improve the sealing of the valve, and the sealing air cushion 2 is located in the inner cavity of the connecting flange, reducing the impact of the external environment on the sealing air cushion 2, extending the service life of the sealing air cushion 2, and through the setting of the internal sealing structure, the spring's rebound force enables the connection between the sealing ring and the valve to always be in a tightly fitted state, reducing the impact of rubber aging on the fit between the sealing ring and the valve connection.

[0004] When the pipe fittings connected to the valve body connection port are connected and fixed, a gap will be left at the connection, resulting in a certain amount of dripping. In addition, the connection surface is relatively rough and the sealing surface has poor finish, making it difficult to achieve a better airtight connection with the pipe fittings and affecting the sealing performance. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a valve with high sealing performance, so as to solve the problem that when the pipe fittings connected to the valve body connection port are connected and fixed in the prior art, a gap will be left at the connection, there will be a certain amount of dripping, and the connection surface is relatively rough, the sealing surface has poor finish, it is not easy to better achieve a closed connection with the pipe fitting, and the sealing performance is affected.

[0006] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: a valve with high sealing performance, including a valve body, a handle, a connecting port, a limiting hole and a closed structure, the top of the valve body is connected to the handle, the left and right ends of the valve body are fixed to the connecting port as a whole, a limiting hole is provided on the outer side of the connecting port, and the middle part of the outer side of the connecting port is fixed to the closed structure; the closed structure includes an outer ring, a closed ring, a limiting structure and an inner ring, the inner side wall of the outer ring is provided with a closed ring, and the outer side of the inner ring is fixed to the closed ring, a limiting structure is provided in the middle of the connection position between the outer ring and the inner ring, and the rear end of the outer ring is fixed to the connecting port as a whole.

[0007] Furthermore, the limiting structure includes a first limiting groove, a second limiting groove and a smooth layer, the left end of the first limiting groove is connected to the second limiting groove, the smooth layer is arranged on the outer surfaces of the first limiting groove and the second limiting groove, and the first limiting groove and the second limiting groove are opened in the middle of the connection position between the outer ring and the inner ring.

[0008] Furthermore, the inner ring includes a base layer, a protective layer and a wear-resistant smooth layer, the top of the base layer is sequentially provided with a protective layer and a wear-resistant smooth layer, and the outer side wall of the wear-resistant smooth layer is fixed to the closed ring as a whole.

[0009] Furthermore, the first limiting groove and the second limiting groove are in a "convex" shape as a whole, and the middle part of the first limiting groove is hollow.

[0010] Furthermore, the protective layer and the wear-resistant smooth layer are arranged to have the same thickness.

[0011] Advantage 1: The utility model is a valve with high sealing performance. A sealing structure is arranged on the outer side of the connection port. The first and second limit grooves arranged on the inner side of the sealing structure can achieve a better sealing fit effect for the external connecting pipe. The setting of the smooth layer improves the smoothness of the sealing surface, which is more convenient for the external pipe fittings to be sealed connected, and at the same time effectively improves the sealing performance of the pipe fittings.

[0012] Advantage 2: The utility model is a valve with high sealing performance. A protective layer and a wear-resistant smooth layer are arranged on the inner side of the inner ring. The setting of the protective layer not only effectively improves the anti-corrosion performance of the inner ring, but also increases the service life of the inner ring. The setting of the wear-resistant smooth layer not only improves the flow rate of the valve body, but also further enhances the service life of the inner ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a side view schematic diagram of the enclosed structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the partial structure of the closed ring side section of the utility model;

[0017] Figure 4 It is a schematic diagram of the partial structure of the inner ring of the utility model from a main view.

[0018] In the figure: valve body 1, handle 2, connection port 3, limiting hole 4, sealing structure 5, outer ring 51, sealing ring 52, limiting structure 53, inner ring 54, first limiting groove 531, second limiting groove 532, smooth layer 533, base layer 541, protective layer 542, wear-resistant smooth layer 543. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] See also Figure 1 The utility model provides a valve with high sealing performance through improvement, including a valve body 1, a handle 2, a connecting port 3, a limiting hole 4 and a sealing structure 5. The top of the valve body 1 is connected to the handle 2, the left and right ends of the valve body 1 are fixed to the connecting port 3 as a whole, the limiting hole 4 is provided on the outer side of the connecting port 3, and the middle part of the outer side of the connecting port 3 is fixed to the sealing structure 5. The setting of the handle 2 is more convenient for users to operate.

[0021] See also Figure 2 The utility model provides a valve with high sealing performance through improvement. The sealing structure 5 includes an outer ring 51, a sealing ring 52, a limiting structure 53 and an inner ring 54. The inner wall of the outer ring 51 is provided with the sealing ring 52, and the outer side of the inner ring 54 is fixed to the sealing ring 52. The limiting structure 53 is provided in the middle of the connection position between the outer ring 51 and the inner ring 54. The rear end of the outer ring 51 is fixed to the connecting port 3 as a whole. The setting of the sealing ring 52 can effectively improve the sealing effect of the connection.

[0022] See also Figure 3The utility model provides a valve with high sealing performance through improvement. The limiting structure 53 includes a first limiting groove 531, a second limiting groove 532 and a smooth layer 533. The left end of the first limiting groove 531 is connected to the second limiting groove 532. The first limiting groove 531 and the second limiting groove 532 are in a "convex" shape as a whole, and the middle part of the first limiting groove 531 is hollow. The smooth layer 533 is arranged on the outer surfaces of the first limiting groove 531 and the second limiting groove 532. The first limiting groove 531 and the second limiting groove 532 are opened in the middle of the connection position between the outer ring 51 and the inner ring 54. The setting of the smooth layer 533 effectively improves the smoothness of the sealing surface.

[0023] See also Figure 4 The utility model provides a valve with high sealing performance through improvement. The inner ring 54 includes a base layer 541, a protective layer 542 and a wear-resistant smooth layer 543. The protective layer 542 and the wear-resistant smooth layer 543 are arranged on the top of the base layer 541 in sequence. The protective layer 542 and the wear-resistant smooth layer 543 are arranged with the same thickness. The outer wall of the wear-resistant smooth layer 543 is fixed to the closed ring 52 as a whole. The setting of the protective layer 542 increases the service life of the inner ring 54.

[0024] The working process is as follows:

[0025] 1. The staff can first install and fix the valve body 1 at the location where it is needed, and then connect and fix the external connecting pipe that needs to be connected to the valve body 1 to the valve body 1. Then the user can control the opening and closing of the valve body 1 by controlling the handle 2;

[0026] 2. When the external connecting tube is connected and fixed to the valve body 1, it is necessary to pass the external connecting tube into the first limiting groove 531 and then fit the external connecting tube with the second limiting groove 532. Because the outer surface of the second limiting groove 532 is provided with a smooth layer 533, it can improve the smoothness of the sealing surface, thereby achieving a better sealing effect. In addition, the inner wall of the outer ring 51 and the outer wall of the inner ring 54 are both provided with sealing rings 52. The two sealing rings 52 are made of rubber material, which can further improve the sealing effect of the external connecting tube.

[0027] 3. A protective layer 542 and a wear-resistant smooth layer 543 are provided on the inner side of the inner ring 54. The provision of the protective layer 542 not only effectively improves the anti-corrosion performance of the inner ring 54, but also improves the service life of the inner ring 54. The provision of the wear-resistant smooth layer 543 not only improves the flow rate of the valve body 1, but also further enhances the service life of the inner ring 54.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model, and the standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A valve with high sealing performance, characterized in that: The valve body (1) comprises a valve body (1), a handle (2), a connection port (3), a limiting hole (4) and a sealing structure (5), wherein the top of the valve body (1) is connected to the handle (2), the left and right ends of the valve body (1) are fixed to the connection port (3) as a whole, the outer side of the connection port (3) is provided with a limiting hole (4), and the middle part of the outer side of the connection port (3) is fixed to the sealing structure (5); The sealed structure (5) comprises an outer ring (51), a sealed ring (52), a limiting structure (53) and an inner ring (54); the inner side wall of the outer ring (51) is provided with a sealed ring (52), and the outer side of the inner ring (54) is fixed to the sealed ring (52); a limiting structure (53) is provided in the middle of the connection position between the outer ring (51) and the inner ring (54); and the rear end of the outer ring (51) is fixed to the connection port (3) as a whole.

2. A valve with high sealing performance according to claim 1, characterized in that: The limiting structure (53) comprises a first limiting groove (531), a second limiting groove (532) and a smooth layer (533); the left end of the first limiting groove (531) is connected to the second limiting groove (532); the smooth layer (533) is arranged on the outer surfaces of the first limiting groove (531) and the second limiting groove (532); the first limiting groove (531) and the second limiting groove (532) are provided in the middle of the connection position between the outer ring (51) and the inner ring (54).

3. A valve with high sealing performance according to claim 1, characterized in that: The inner ring (54) comprises a base layer (541), a protective layer (542) and a wear-resistant smooth layer (543); the top of the base layer (541) is provided with the protective layer (542) and the wear-resistant smooth layer (543) in sequence; the outer side wall of the wear-resistant smooth layer (543) is fixed to the closed ring (52) as a whole.

4. A valve with high sealing performance according to claim 2, characterized in that: The first limiting groove (531) and the second limiting groove (532) are in a "convex" shape as a whole, and the middle part of the first limiting groove (531) is hollow.

5. A valve with high sealing performance according to claim 3, characterized in that: The protective layer (542) and the wear-resistant smooth layer (543) are arranged to have the same thickness.

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