A high-low concentration gas switching device

Abstract

The application discloses a high-low concentration gas switching device and belongs to the technical field of gas valves. The device comprises a gas exchange chamber, a gas outlet is formed on one side of the gas exchange chamber, a gas inlet pipe is installed on the gas outlet, a plurality of gas inlets are formed on other positions of the gas exchange chamber, a gas exchange assembly is installed on the gas inlets, a gas connecting assembly is threadedly connected to the gas exchange assembly, and a supporting frame is installed on the gas inlet pipe. The gas exchange chamber and the plurality of gas exchange assemblies installed thereon can effectively improve the convenience of gas exchange. Different concentration input gas connecting assemblies can be plugged in according to needs during gas exchange, and then disinfection gas or to-be-detected gas can be conveyed according to actual needs. The gas exchange chamber and the gas exchange assembly greatly facilitate the replacement of the gas connecting assembly and improve work efficiency.

Description

TECHNICAL FIELD

[0001] The application relates to a gas switching device, in particular to a high-low concentration gas switching device, and belongs to the technical field of gas valves. BACKGROUND

[0002] Gas sterilization is a method for killing microorganisms by using a gas formed by a chemical sterilizing agent. Common chemical sterilizing agents include ethylene oxide, gaseous hydrogen peroxide, formaldehyde, ozone (O3), etc. The method is suitable for sterilizing articles in a gas; when different sterilizing gases are used to kill bacteria, different gas concentrations can be used according to different use conditions to sterilize the articles, which can reduce the consumption of the gas and the damage of the sterilizing gas to the articles; when different concentrations are used or multiple gases are used in combination, the replacement of the gases is relatively complicated. SUMMARY

[0003] The main purpose of the application is to solve the problem of inconvenience in replacing different concentrations or different types of sterilizing gases, and provide a high-low concentration gas switching device.

[0004] The purpose of the application can be achieved by adopting the following technical scheme.

[0005] A high-low concentration gas switching device comprises a gas exchange chamber, one side of the gas exchange chamber is provided with a gas outlet, an air inlet pipe is installed on the gas outlet, a plurality of air inlets are provided on other positions of the gas exchange chamber, a gas exchange assembly is installed on the air inlets, the gas exchange assembly is connected with a gas connection assembly through threads, and a supporting frame is installed on the air inlet pipe.

[0006] Preferably, the gas exchange chamber is in a spherical shape.

[0007] Preferably, the gas exchange assembly comprises a gas exchange cylinder in sealing connection with the air inlets, a closing screw is installed on one end of the gas exchange cylinder inserted into the gas exchange chamber, and a square groove is installed on one end of the closing screw facing the gas exchange cylinder.

[0008] Preferably, the closing screw is hollow.

[0009] Preferably, an end plate is installed on one end of the closing screw, the end plate is in communication with the square groove, a through hole is provided on one side of the closing screw facing the gas exchange cylinder, a first sealing gasket is installed on this side, and a gas channel is provided on the first sealing gasket in communication with the through hole.

[0010] Preferably, a gas connection assembly is installed on the other end of the gas exchange assembly, the gas connection assembly comprises a gas connection screw in thread connection with the gas exchange cylinder, a square clamping piece is installed on one end of the gas connection screw facing the gas exchange cylinder, and the square clamping piece is matched with the square groove.

[0011] Preferably, the other end of the air receiving screw is also provided with an end plate, and a second sealing gasket is arranged on one side of the end plate.

[0012] Preferably, the other end of the air receiving assembly is connected to a gas conveying device through an air guide pipe.

[0013] Preferably, the support frame comprises a clamping ring connected to the air inlet pipe, a support frame is fixedly arranged at the bottom of the clamping ring, a side plate is connected to the bottom end of the support frame through a connecting column, an anti-skid column is fixedly arranged at the bottom end of the side plate, a wing plate is arranged at the bottom of the support frame, and a tightening bolt is arranged on the wing plate.

[0014] Preferably, the connecting column comprises a rotating shaft arranged at the bottom end of the support frame, and a rotating sleeve fixed to the top of the side plate is arranged on the rotating shaft.

[0015] The high and low concentration gas switching device provided by the application can effectively improve the convenience of gas exchange, can plug in air receiving assemblies of different concentrations as required during gas exchange, and then can convey sterilization gas or detection gas according to actual required concentration. The arrangement of the gas exchange chamber and the gas exchange assembly greatly facilitates replacement of the air receiving assembly and improves work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the application;

[0017] Figure 2 It is a schematic diagram of the connection between the gas exchange chamber and the gas exchange assembly of the application;

[0018] Figure 3 It is a schematic diagram of the structure of the gas exchange chamber of the application;

[0019] Figure 4 It is an exploded view of the gas exchange assembly of the application;

[0020] Figure 5 It is a schematic diagram of the structure of the air receiving assembly of the application;

[0021] Figure 6 It is a schematic diagram of the structure of the support frame of the application.

[0022] In the drawings: 1, support frame; 2, air inlet pipe; 3, gas exchange chamber; 4, gas exchange assembly; 5, air receiving assembly; 6, air guide pipe; 7, air outlet; 8, sealing screw; 9, first sealing gasket; 10, second sealing gasket; 11, square groove; 12, square clasp; 13, clamping ring; 14, wing plate; 15, tightening bolt; 16, side plate; 17, anti-skid column; 18, connecting column; 19, air receiving screw; 20, gas exchange cylinder. DETAILED DESCRIPTION

[0023] In order to make the technical solution of the present application more clear and explicit for those skilled in the art, the present application is described in further detail below in combination with embodiments and drawings, but the embodiments of the present application are not limited thereto.

[0024] As Figures 1-3 shown, the high and low concentration gas switching device provided by the embodiment includes a gas exchange chamber 3, one side of the gas exchange chamber 3 is provided with a gas outlet 7, the gas inlet pipe 2 is installed on the gas outlet 7, the gas is introduced into the detection instrument or the gas with sterilization is introduced into the working chamber through the gas inlet pipe 2, and the sterilization and disinfection of the articles are performed; a plurality of gas inlets are provided on other positions of the gas exchange chamber 3, the gas exchange assembly is installed on the gas inlets, the gas inlets are connected with a plurality of gas inlets with different concentrations through the gas exchange assembly, and then a plurality of or different interfaces can be plugged according to the needs of detection and sterilization and disinfection, which is convenient and fast; the gas exchange assembly 4 can be connected with the gas connection assembly 5 through threads; the support frame 1 is installed on the gas inlet pipe 2, which can conveniently support the gas inlet pipe 2 and is more convenient to use; the gas exchange chamber 3 is spherical, and a plurality of gas exchange assemblies 4 can be conveniently installed.

[0025] In the embodiment, as Figure 4 and Figure 5As shown in the drawings, the air exchange assembly 4 comprises an air exchange cylinder 20 connected with the air inlet, the air exchange cylinder 20 is inserted into the air exchange chamber 3, a closing screw 8 is installed on one end of the air exchange cylinder 20, a square groove 11 is installed on the end of the closing screw 8 facing the air exchange cylinder 20, and the closing screw 8 is hollow inside, which is an air passage for facilitating the flow of gas; an end plate is installed on one end of the closing screw 8, the end plate is communicated with the square groove 11, a through hole is formed on the side of the closing screw 8 facing the air exchange cylinder 20, and a first sealing gasket 9 is installed on this side, and the first sealing gasket 9 is provided with an air passage communicated with the through hole; the other end of the air exchange assembly 4 is provided with a gas connecting assembly 5, the gas connecting assembly 5 comprises a gas connecting screw 19 threadedly connected with the air exchange cylinder 20, a square clamping piece 12 is installed on the end of the gas connecting screw 19 facing the air exchange cylinder 20, the square clamping piece 12 is matched with the square groove 11, and after being inserted, the air passage can be exposed by rotating, which is convenient for injecting gas into the air exchange chamber 3; an end plate is also installed on the other end of the gas connecting screw 19, and a second sealing gasket 10 is installed on one side of the end plate, which can effectively improve the sealing performance when connected with the air exchange cylinder 20; by arranging the closing screw 8 and the gas connecting screw 19, the air passage can be exposed when rotating through the cooperation of the square groove 11 and the square clamping piece 12, and the closing screw 8 can also be rotated when the gas connecting assembly 5 is removed, which can be tightened again, thereby sealing the air passage, and the convenience of installation can be effectively improved when replacing the gas connecting assembly 5, and the gas valve does not need to be closed and opened again; when gas is delivered, the gas connecting assembly 5 of multiple concentrations is replaced or connected, the other end of the gas connecting assembly 5 is connected with a gas delivery device through a gas guide pipe 6, and the gas delivery device is started to deliver gas into the air exchange chamber 3.

[0026] In this embodiment, as Figure 6 As shown in the drawings, the support frame 1 comprises a clamping ring 13 connected with the air inlet pipe 2, the bottom of the clamping ring 13 is fixedly installed with the support frame 1, the bottom ends of the two side plates 16 are connected with the support frame 1 through connecting columns 18, and the bottom ends of the side plates 16 are fixedly installed with anti-skid columns 17; the bottom of the support frame 1 is installed with a wing plate 14, and the wing plate 14 is installed with a tightening bolt 15, when installed, the length of the tightening bolt 15 extending downward can be adjusted by rotating the tightening bolt 15, thereby the angle between the two side plates 16 can be adjusted when installed, and the overall height can be conveniently adjusted; the connecting column 18 comprises a rotating shaft installed at the bottom end of the support frame 1, and a rotating sleeve fixedly installed at the top of the side plate 16 is installed on the rotating shaft, the rotating sleeve is connected with the rotating shaft, and the angle between the two side plates 16 can be conveniently adjusted.

[0027] In summary, in the present embodiment, the high and low concentration gas switching device according to the present embodiment can effectively improve the convenience during gas exchange by providing the gas exchange chamber 3 and the plurality of gas exchange assemblies 4 mounted thereon. During gas exchange, different concentration input gas exchange assemblies 5 can be plugged in as needed, and then the disinfectant gas or the gas to be detected can be delivered according to the actual required concentration. The provision of the gas exchange chamber 3 and the gas exchange assemblies 4 greatly facilitates the replacement of the gas exchange assemblies 5 and improves work efficiency.

[0028] The above is only further embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent replacements or changes within the scope disclosed by the present application according to the technical solutions and concepts of the present application, which shall all fall within the protection scope of the present application.

Claims

1. A high-concentration gas switching device, characterized in that, The system includes a ventilation chamber (3), with an air outlet (7) on one side. An air inlet pipe (2) is installed on the air outlet (7). Multiple air inlets are located at other positions in the ventilation chamber (3). A ventilation assembly (4) is installed on each air inlet. An air receiving assembly (5) is connected to the ventilation assembly (4) via a thread. A support frame (1) is installed on the air inlet pipe (2). The ventilation assembly (4) includes a ventilation cylinder (20) that is sealed to the air inlet. A sealing screw (8) is installed on one end of the ventilation cylinder (20) that is inserted into the ventilation chamber (3). A square groove (11) is installed on the end of the sealing screw (8) facing the ventilation cylinder (20). The sealing screw (8) is hollow inside. An end plate is installed at one end, and the end plate communicates with the square groove (11). The sealing screw (8) has a through hole on the side facing the air exchange cylinder (20), and a first sealing gasket (9) is installed on this side. The first sealing gasket (9) has an air passage that communicates with the through hole. An air receiving component (5) is installed at the other end of the air exchange assembly (4). The air receiving component (5) includes an air receiving screw (19) that is threadedly connected to the air exchange cylinder (20). A square clip (12) is installed at one end of the air receiving screw (19) facing the air exchange cylinder (20). The square clip (12) cooperates with the square groove (11). An end plate is also installed at the other end of the air receiving screw (19). A second sealing gasket (10) is installed on one side of the end plate.

2. The high-concentration gas switching device according to claim 1, characterized in that, The ventilation chamber (3) is spherical.

3. The high-concentration gas switching device according to claim 1, characterized in that, The other end of the gas receiving component (5) is connected to the gas transmission equipment via a gas guide pipe (6).

4. The high-concentration gas switching device according to claim 1, characterized in that, The support frame (1) includes a retaining ring (13) connected to the air intake pipe (2). The support frame (1) is fixedly installed at the bottom of the retaining ring (13). Side plates (16) are connected to the bottom edges of the support frame (1) via connecting columns (18). Anti-slip columns (17) are fixedly installed at the bottom of the side plates (16). A wing plate (14) is installed at the bottom of the support frame (1). Tightening bolts (15) are installed on the wing plate (14).

5. A high-concentration gas switching device according to claim 4, characterized in that, The connecting column (18) includes a rotating shaft installed at the bottom of the support frame (1), and a rotating sleeve fixed to the top of the side plate (16) is installed on the rotating shaft.

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