Quick switching sealing device for pressurizing gas chamber cavity

Abstract

The utility model discloses a quick switching sealing device for pressurizing a gas chamber cavity, which comprises a main body placed in a central cavity enclosed by an upper annular cylinder cavity of a gas chamber, the main body can rotate in the central cavity, a water inlet is arranged on the top wall of the main body, and a water outlet is arranged on the top wall of the main body. A first water outlet capable of being communicated with a first cooling water inlet through hole in the side wall of an annular cylinder cavity on the gas chamber is formed in the main body in the circumferential direction, an arc-shaped groove is formed in the bottom wall of the center cavity, and a second cooling water inlet through hole formed in the bottom wall of the center cavity is located in the arc-shaped groove. And a second water outlet which can rotate along the arc-shaped groove and can be communicated with the second cooling water inlet through hole in the arc-shaped groove is formed in the bottom surface of the main body. The tool does not need to be replaced, and use is fast and convenient.

Description

Technical Field

[0001] This utility model relates to a quick-switching sealing device, and more particularly to a quick-switching sealing fixture for pressurizing a gas chamber. Background Technology

[0002] The combustion chamber is a crucial component of the engine. During engine operation, the combustion chamber reaches high temperatures and requires cooling to ensure the engine operates within a suitable temperature range. Therefore, a cooling water passage is installed near the combustion chamber gas passage to cool the gas. A schematic diagram of the combustion chamber structure can be found here. Figure 1 , Figure 2 As shown, it includes an upper annular cylindrical chamber 1-1 and a lower cylindrical chamber 2-2. The central cavity 1-2 formed by the upper annular cylindrical chamber is used to house the pressure-pressurizing sealing device. The top wall of the lower cylindrical chamber is the bottom wall of the central cavity. A first cooling water inlet through hole a is opened on the side wall of the upper annular cylindrical chamber, and a second cooling water inlet through hole b is opened on the bottom wall of the central cavity. In order to ensure the sealing performance of the two cavities, the upper annular cylindrical chamber 1-1 and the lower cylindrical chamber 2-2, a pressure test is required. The traditional method is to use two sealing fixtures to pressurize the air passage and the water passage respectively, which is inconvenient to use, has low working efficiency, and cannot achieve rapid switching. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a quick-switching sealing device for pressurizing gas chambers that can achieve rapid switching.

[0004] To achieve the objectives of this utility model, the technical solution adopted by this utility model is as follows:

[0005] This utility model discloses a quick-switching sealing device for pressurizing a gas chamber cavity, comprising a main body for placement within a central cavity formed by an upper annular cylindrical chamber of the gas chamber. The main body is a cylindrical structure capable of rotating within the central cavity. A water inlet is located on the top wall of the main body, and a first water outlet is provided on the circumference of the main body, communicating with a first cooling water inlet through-hole on the side wall of the upper annular cylindrical chamber of the gas chamber. An arc-shaped groove is formed on the bottom wall of the central cavity, and a second cooling water inlet through-hole on the bottom wall of the central cavity is located within the arc-shaped groove. The bottom surface of the body is provided with a second water outlet that can rotate along the arc-shaped groove and communicate with the second cooling water inlet through hole on the arc-shaped groove. The second water outlet is annular cylindrical. The positions between the first water outlet and the second water outlet are set as follows: when the first water outlet is in a position communicating with the first cooling water inlet through hole, the second water outlet is in the arc-shaped groove and is not communicating with the second cooling water inlet through hole; when the second water outlet is in the arc-shaped groove and the second water outlet is communicating with the second cooling water inlet through hole, the first water outlet is in a position not communicating with the first cooling water inlet through hole.

[0006] The advantages of this utility model are: simple structure, convenient operation, no need to change tooling during pressure testing, the sealing effect can be quickly switched by rotation, and pressure testing of two cavities can be quickly achieved with one tooling, making it quick and convenient to use. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the existing gas chamber structure;

[0008] Figure 2 yes Figure 1 The diagram shows a cross-sectional view of the gas chamber structure.

[0009] Figure 3 This is a structural schematic diagram of the quick-switching sealing device for pressurizing a gas chamber according to this utility model;

[0010] Figure 4 yes Figure 3 Cross-sectional view of the structure shown. Detailed Implementation

[0011] The structure of this utility model will be described below with reference to the accompanying drawings.

[0012] As shown in the attached diagram, this utility model discloses a quick-switching sealing device for pressurizing a gas chamber cavity. It includes a main body placed within a central cavity formed by an upper annular cylindrical chamber of the gas chamber. The main body is a cylindrical structure capable of rotating within the central cavity. An inlet 2-1 is located on the top wall of the main body, and a first outlet 2-2 is provided on the circumference of the main body, communicating with a first cooling water inlet through-hole a on the side wall of the upper annular cylindrical chamber of the gas chamber. An arc-shaped groove is formed on the bottom wall of the central cavity, and a second cooling water inlet through-hole b on the bottom wall of the central cavity is located within the arc-shaped groove. The bottom surface of the main body is provided with a second outlet 2-3 that can rotate along the arc-shaped groove 1-3 and communicate with the second cooling water inlet through hole b on the arc-shaped groove. The second outlet is annular cylindrical. The position between the first outlet 2-2 and the second outlet is set as follows: when the first outlet is in a position communicating with the first cooling water inlet through hole a, the second outlet is in the arc-shaped groove and is not communicating with the second cooling water inlet through hole; when the second outlet is in the arc-shaped groove and the second outlet is communicating with the second cooling water inlet through hole, the first outlet is in a position not communicating with the first cooling water inlet through hole a.

[0013] Two sealing rings 2-4 are provided on the outer wall of the main body in the circumferential direction, and the two sealing rings are respectively located above and below the first water outlet. The sealing rings 2-4 are mainly used to assist in sealing between the main body of the sealing device and the central cavity for quick switching.

[0014] The working principle of this structure is as follows:

[0015] Place the quick-switching sealing device into the central cavity 1-2 of the gas chamber, and place the second outlet 2-3 in the arc-shaped groove of the gas chamber. Rotate the quick-switching sealing device. When the first outlet 2-2 coincides with the first cooling water inlet through hole a on the gas chamber, the second outlet 2-3 does not coincide with the second cooling water inlet through hole b in the gas chamber. Cooling water cannot enter the lower cylindrical cavity 2-2. Cooling water is supplied and pressurized to the upper annular cylindrical cavity 1-1 through the inlet 2-1, the first outlet 2-2, and the first cooling water inlet through hole a. Rotate the quick-switching sealing device. When the second outlet 2-3 and the second cooling water inlet through hole b coincide, the first outlet 2-2 and the first cooling water inlet through hole a do not coincide. Cooling water cannot enter the upper annular cylindrical cavity 1-1. Cooling water is supplied to the lower cylindrical cavity 2-2 through the inlet 2-1, the second outlet 2-3 and the second cooling water inlet through hole b.

Claims

1. A quick-switching sealing device for pressurizing a gas chamber, characterized in that: The device includes a main body for placement within a central cavity formed by an upper annular cylindrical chamber of a gas chamber. The main body is a cylindrical structure capable of rotating within the central cavity. A water inlet is located on the top wall of the main body, and a first water outlet is provided on the circumference of the main body, communicating with a first cooling water inlet through-hole on the side wall of the upper annular cylindrical chamber of the gas chamber. An arc-shaped groove is formed on the bottom wall of the central cavity, and a second cooling water inlet through-hole on the bottom wall of the central cavity is located within the arc-shaped groove. A spacer is provided on the bottom surface of the main body that allows water to circulate within the central cavity. The arc-shaped groove rotates and is able to communicate with the second cooling water inlet through hole on the arc-shaped groove. The second water outlet is annular cylindrical. The positions between the first water outlet and the second water outlet are set as follows: when the first water outlet is in a position communicating with the first cooling water inlet through hole, the second water outlet is in the arc-shaped groove and is not communicating with the second cooling water inlet through hole; when the second water outlet is in the arc-shaped groove and the second water outlet is communicating with the second cooling water inlet through hole, the first water outlet is in a position not communicating with the first cooling water inlet through hole.

2. The quick-switching sealing device for pressurizing a gas chamber cavity according to claim 1, characterized in that: Two sealing rings are provided on the outer wall of the main body in the circumferential direction, and the two sealing rings are respectively located above and below the first water outlet.

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