Exhaust valve for pressure vessel

Abstract

The exhaust valve comprises a valve body and a tip cone piece, the tip cone piece is installed in the valve body, the valve body comprises a shell and an inner sleeve, the top of the shell extends towards the inner side to be provided with a fixing ring, the inner sleeve is installed in the space formed by the fixing ring and the inner wall of the shell, and the tip cone piece is installed on the inner wall of the shell. An exhaust channel is formed between the inner sleeve and the fixing ring and communicated with the outside of the shell, and a sealing piece is installed at the bottom of the inner sleeve. A mounting groove is formed in the middle of the fixing ring, a clamping groove is annularly formed in the side wall of the mounting groove, a clamping block is annularly arranged on the side wall of the tip cone piece, and the clamping block is connected to the clamping groove in a clamped mode so that the tip cone piece can be fixed to the fixing ring; the exhaust valve element provided by the utility model has the advantages that the assembly process is simple and convenient, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of exhaust valves, and in particular to an exhaust valve for a pressure vessel. Background Art

[0002] Cooking appliances such as pressure cookers usually have a constant cooking pressure. By setting an exhaust valve, the pressure of the pressure cooker can be kept within a safe range during operation, and the overpressure gas can be discharged in time to ensure the safety of the pressure cooker.

[0003] The exhaust valve generally comprises a valve body and a top cone member forming a valve core. During the manufacture of the existing exhaust valve, the valve core is generally fixed by injection molding in a valve body injection mold or by direct welding to the valve body. The process is complex, the manufacturing cost is high, the efficiency is low, and the overall scrap rate is high. Utility Model Content

[0004] The utility model aims to solve the above technical problems and provides an exhaust valve for a pressure vessel. The exhaust valve core of the present invention has a simple assembly process and improves production efficiency.

[0005] In order to achieve the above purpose, the technical solutions of the utility model include:

[0006] A kind of exhaust valve for pressure vessel comprises a valve body and a top cone, wherein the top cone is installed in the valve body, the valve body comprises a shell and an inner sleeve, a fixing ring is provided on the top of the shell extending inward, the inner sleeve is installed in the gap formed by the fixing ring and the inner wall of the shell, an exhaust channel is formed between the inner sleeve and the fixing ring and communicated to the outside of the shell, a sealing member is installed at the bottom of the inner sleeve; a mounting groove is provided in the middle of the fixing ring, a clamping groove is provided on the side wall ring of the mounting groove, a clamping block is provided on the side wall ring of the top cone, the clamping block is clamped in the clamping groove to fix the top cone to the fixing ring; the bottom of the top cone is located outside the fixing ring.

[0007] In the present application, the inner sleeve is arranged in the shell body, and forms an exhaust channel with the fixing ring extending from the inside of the shell body, and the clamping groove formed by the inner wall of the mounting groove of the fixing ring is clamped with the outer wall clamping block of the top cone part, so that the top cone part can be quickly installed and clamped in the valve body without the need for fixing by other fixing methods, which effectively simplifies the production process, and the overall assembly of the exhaust valve is simple, thereby improving production efficiency.

[0008] In one embodiment, the valve body further includes a limiting member, which is disposed inside the shell and limits the inner sleeve.

[0009] In one embodiment, the main body of the inner sleeve is a hollow cylinder, and the top and bottom edges extend outward in a circumferential direction; the two ends of the limiting member are adapted to the inner sleeve.

[0010] In one embodiment, the top cone member includes a top cone shell and a top cone, the outer wall of the top cone shell is provided with a clamping block, and the top cone shell is clamped to the fixing ring.

[0011] In one embodiment, the top cone shell is provided with an arc-shaped groove, and the top cone is a sphere and is embedded in the arc-shaped groove.

[0012] In one embodiment, the top cone shell is a hollow annular sleeve, the top cone is embedded in the middle of the top cone shell, and the bottom of the top cone extends out of the top cone shell.

[0013] In one of the embodiments, a gasket is further included. The gasket is fixed to the bottom of the shell and forms a sealing groove with the bottom of the inner sleeve. The sealing member is disposed in the sealing groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the overall structure of the exhaust valve provided by the utility model;

[0015] Figure 2 A structural cross-sectional view of the exhaust valve provided by the utility model;

[0016] Figure 3 A schematic diagram of the structure of the exhaust valve provided by the utility model;

[0017] Figure 4 A structural cross-sectional view of the installation groove provided by the utility model;

[0018] Figure 5 A schematic diagram of the structural decomposition of the top cone provided by the utility model;

[0019] Figure 6 A structural cross-sectional view of another embodiment provided by the utility model;

[0020] Figure 7 A structural cross-sectional view of a top cone member of another embodiment provided by the utility model;

[0021] Figure 8 This is an exploded view of the top cone structure of another embodiment provided by the utility model. DETAILED DESCRIPTION

[0022] An embodiment of the present application provides an exhaust valve for a pressure vessel, which is used to solve the technical problem that during the manufacture of existing exhaust valves, the valve core is generally fixed by injection molding in a valve body injection mold or by direct welding to the valve body, which results in complex process, high manufacturing cost, low efficiency and high overall scrap rate.

[0023] In order to make the purpose, features, and advantages of the invention of this application more obvious and easy to understand, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described below are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] See also Figures 1 to 8 The embodiment of the present application provides an exhaust valve for a pressure vessel, comprising a valve body 100 and a top cone 200, wherein the top cone 200 is installed in the valve body 100, the valve body 100 comprises a shell 110 and an inner sleeve 120, a fixing ring 130 is provided extending inward from the top of the shell 110, and the inner sleeve 120 is installed in the gap formed by the fixing ring 130 and the inner wall of the shell 110, and an exhaust valve is formed between the inner sleeve 120 and the fixing ring 130. The air passage 140 is connected to the outside of the shell 110, and a sealing member 300 is installed at the bottom of the inner sleeve 120; a mounting groove 131 is provided in the middle of the fixing ring 130, and a clamping groove 1311 is provided on the side wall ring of the mounting groove 131, and a clamping block 210 is provided on the side wall ring of the top cone member 200, and the clamping block 210 is clamped in the clamping groove 1311 to fix the top cone member 200 to the fixing ring 130; the bottom of the top cone member 200 is located outside the fixing ring.

[0025] Specifically, the shell 110 is hollow, with multiple exhaust positions on the top, and the middle part extends downward to form an annular fixed ring 130. There is a gap between the outer wall of the fixed ring 130 and the inner wall of the shell 110. The inner sleeve 120 is installed in the gap and forms an exhaust channel 140 with the fixed ring 130. The exhaust channel 140 is connected with the exhaust hole; a mounting groove 131 begins to be provided in the middle of the fixed ring 130, and the size of the mounting groove 131 is adapted to the size of the top cone 200. A clamping groove 1311 is provided in the middle ring of the mounting groove 131, and the corresponding position of the outer wall of the top cone 200 is raised to form an annular clamping block 210. During installation, the top cone 200 is fixed in the fixing ring 130 by being clamped in the clamping groove 1311 by the clamping block 210, so as to form a fixed connection with the valve body 100; the process is simple during production and assembly, and it is easy to install.

[0026] Furthermore, the valve body 100 further includes a stopper 150, which is disposed inside the housing 110 and stops the inner sleeve 120. The main body of the inner sleeve 120 is a hollow cylinder, with the top and bottom edges extending outward in the circumferential direction; the two ends of the stopper 150 are adapted to the inner sleeve 120. The stopper 150 is in the shape of a hollow ring, with the upper and lower ends adapted to the two ends of the inner sleeve 120. During installation, a space for stopping the inner sleeve 120 is formed between the stopper 150 and the fixing ring 130, and the assembly process is simple.

[0027] Furthermore, it also includes a gasket 400, which is fixed to the bottom of the housing 110 and forms a sealing groove 410 with the bottom of the inner sleeve 120, and the sealing member 300 is arranged in the sealing groove 410. The gasket 400 is installed at the bottom of the housing 110, the upper end surface of the gasket 400 abuts against the bottom of the inner sleeve 120, and the upper end surface of the gasket 400 is concave, and forms a sealing groove 410 with the bottom of the inner sleeve 120, and the sealing member 300 is arranged in the sealing groove 410, which is easy to install.

[0028] See also Figure 5 The top cone 200 includes a top cone shell 220 and a top cone 230. The outer wall of the top cone shell 220 is provided with a clamping block 210. The top cone shell 220 is clamped to the fixing ring 130. The top cone shell 220 is provided with an arc groove 221. The top cone 230 is a sphere and is embedded in the arc groove 221. The top cone 200 is composed of the top cone shell 220 and the top cone 230. In this embodiment, the arc groove 221 at the bottom of the top cone shell 220 is used to embed the top cone 230. The top cone 230 is fixed to the top cone shell 220 through interference fit, and the top cone shell 220 is directly clamped in the fixing ring 130. Then, the top cone 200 as a whole can be quickly fixedly connected to the valve body 100, which simplifies the manufacturing process.

[0029] See also Figures 6 to 8 In another embodiment, the top cone shell 220 is a hollow annular sleeve, the top cone 230 is embedded in the middle of the top cone shell 220, and the bottom of the top cone 230 extends out of the top cone shell 220. In this embodiment, the bottom of the top cone 230 is preferably in an arc shape. Of course, the bottom of the top cone 230 can also be in other shapes, such as a cone. The middle part of the top cone shell 220 is hollow, and the top cone 230 is embedded in the middle part of the top cone shell 220 by interference fit, and the outer wall of the top cone shell 220 is clamped in the fixing ring 130, so that it can be quickly assembled.

[0030] According to the disclosure and teaching of the above description, the technical personnel in the field to which the utility model belongs can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. An exhaust valve for a pressure vessel, comprising a valve body and a top cone, wherein the top cone is installed in the valve body, characterized in that: The valve body includes a shell and an inner sleeve, a fixing ring is extended inward from the top of the shell, the inner sleeve is installed in the gap formed by the fixing ring and the inner wall of the shell, an exhaust channel is formed between the inner sleeve and the fixing ring and connected to the outside of the shell, and a sealing member is installed at the bottom of the inner sleeve; a mounting groove is provided in the middle of the fixing ring, a clamping groove is provided on the side wall ring of the mounting groove, a clamping block is provided on the side wall ring of the top cone, and the clamping block is clamped in the clamping groove to fix the top cone to the fixing ring; the bottom of the top cone is located outside the fixing ring.

2. The exhaust valve for a pressure vessel according to claim 1, characterized in that: The valve body further comprises a limiting member, which is arranged inside the shell and limits the inner sleeve.

3. The exhaust valve for a pressure vessel according to claim 2, characterized in that: The main body of the inner sleeve is a hollow cylinder, and the top and bottom edges extend outward in the circumferential direction; the two ends of the limit member are adapted to the inner sleeve.

4. The exhaust valve for a pressure vessel according to claim 1, characterized in that: The top cone member comprises a top cone shell and a top cone, a clamping block is arranged on the outer wall of the top cone shell, and the top cone shell is clamped on the fixing ring.

5. The exhaust valve for a pressure vessel according to claim 4, characterized in that: The top cone shell is provided with an arc groove, and the top cone is a sphere and is embedded in the arc groove.

6. The exhaust valve for a pressure vessel according to claim 4, characterized in that: The top cone shell is a hollow annular sleeve, the top cone is embedded in the middle of the top cone shell, and the bottom of the top cone extends out of the top cone shell.

7. The exhaust valve for a pressure vessel according to claim 1, characterized in that: It also includes a gasket, which is fixed to the bottom of the shell and forms a sealing groove with the bottom of the inner sleeve. The sealing member is arranged in the sealing groove.

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