Test gas circuit conversion device

Abstract

The utility model provides a test gas circuit conversion device. The test gas circuit conversion device comprises a bottom plate; the test board is installed at the top of the bottom plate, a first circulation frame is installed at the position, close to one side, of the top of the test board, a second circulation frame is installed at the top of the first circulation frame, and two installation bins are arranged in the second circulation frame; wherein a first butt joint pipe is mounted in one mounting bin through a sealing ring, a second butt joint pipe is mounted in the other mounting bin through a sealing ring, and a cylinder body is mounted at the top of the second circulation frame. And the two pistons are installed in the first circulation frame, and gas channels are formed in the pistons. According to the test gas circuit switching device provided by the utility model, test gas circuit switching is realized through a single function module and a replacement tool, different products can be tested, the module use efficiency is greatly improved, and the cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of test gas path conversion technology, and in particular to a test gas path conversion device. Background Technology

[0002] Gas circuits refer to laboratory gas engineering, which is the pipeline connecting gas cylinders to instrument terminals. It generally consists of gas switching devices, pressure reducing devices, valves, pipelines, filters, alarms, terminal boxes, regulating valves, etc.

[0003] The working principle of the gas-electric converter is to convert the change in gas quantity into a change in voltage. Specifically, the gas-electric converter uses the change in the input gas signal to cause the displacement of the movable part to connect or disconnect the circuit, thereby outputting an electrical signal.

[0004] Existing test gas path conversion devices have different pipe directions for different products, and the test fixtures need to switch between different modules, which is complicated, difficult to operate, and the pipelines are complex and difficult to maintain.

[0005] Therefore, it is necessary to provide a test gas path switching device to solve the above-mentioned technical problems. Utility Model Content

[0006] This invention provides a test gas path conversion device, which solves the problems of existing test gas path converters, which are difficult to operate and have complex pipelines that are inconvenient to maintain when switching between different modules for different product test fixtures.

[0007] To solve the above-mentioned technical problems, the test gas path conversion device provided by this utility model includes: a base plate;

[0008] A test stand is installed on the top of a base plate. A first flow frame is installed on the top of the test stand near one side. A second flow frame is installed on top of the first flow frame. The second flow frame has two installation chambers inside. One installation chamber has a first pair of connecting pipes installed inside through a sealing ring. The other installation chamber has a second pair of connecting pipes installed inside through a sealing ring. A cylinder is installed on top of the second flow frame.

[0009] Two pistons are installed inside the first flow frame. Each piston has a gas passage inside. An installation frame is installed on one side of the first flow frame. A first air inlet pipe is installed on one side of the inner wall of the installation frame, and an air outlet pipe is installed on one side of the inner wall of the installation frame. A second air inlet pipe is installed on the other side of the first flow frame through a docking box. An exhaust pipe is installed at the bottom of the docking box.

[0010] The cylinder's inlet and outlet are connected to the first pair of connecting pipes and the second pair of connecting pipes, respectively. The first pair of connecting pipes and the second pair of connecting pipes are gas passages inserted into the two pistons. The installation chamber is located at the connection between the second flow frame and the first flow frame. The interior of the first flow frame also has multiple gas flow channels.

[0011] Preferably, an installation base is mounted on the front of the first flow frame, and an operation screen is mounted on the front of the installation base.

[0012] Preferably, a control box is installed on one side of the test bench, and a door is rotatably connected to the other side of the control box;

[0013] The control box contains power switches and controllers for operating the equipment.

[0014] Preferably, a filter assembly is installed at the other end of both the first and second air intake pipes, and the filter assembly includes a retaining ring.

[0015] The filtration unit can filter the gas entering the testing equipment.

[0016] Preferably, one end of the fixing ring is fixedly connected to a connecting bucket, and the other end of the connecting bucket is fixedly connected to a flow pipe;

[0017] The flow tube is a hollow cylinder.

[0018] Preferably, a filter disc is installed inside the flow tube via a fixing buckle, and a valve is installed at the other end of the flow tube via a connecting pipe;

[0019] The valve can be opened manually or automatically, and the filter disc provides the filtration effect.

[0020] Compared with related technologies, the test gas path conversion device provided by this utility model has the following beneficial effects:

[0021] This utility model provides a test gas path switching device. To improve the efficiency of the test gas path switching module, a second flow frame is installed on the test bench through a first flow frame, making the first and second flow frames an integral whole. Then, the first and second pairs of connecting pipes are installed in the mounting chamber of the second flow frame through sealing rings, thereby ensuring the sealing of the connection between the first and second pairs of connecting pipes. Then, the first inlet pipe, the outlet pipe, the second inlet pipe, and the exhaust pipe are installed in opposite directions of the first flow frame, so that the piston can be adjusted in the second flow frame by gas from different directions. Through a single-function module, the test gas path can be switched by changing the tooling, which can test different products, greatly improving the efficiency of the module and saving costs. Attached Figure Description

[0022] Figure 1 A schematic diagram of a preferred embodiment of the test gas path conversion device provided by this utility model;

[0023] Figure 2 This invention provides a structural schematic diagram of the second air intake pipe.

[0024] Figure 3 A schematic diagram of the flow head is provided for this utility model;

[0025] Figure 4 This utility model provides a structural schematic diagram of the exhaust pipe;

[0026] Figure 5 A schematic diagram of the filter disc is provided for this utility model.

[0027] The following are the labels in the diagram: 1. Base plate, 2. Test bench, 3. Exhaust pipe, 4. Control panel, 5. Mounting base, 6. Docking box, 7. First flow frame, 8. Second flow frame, 9. Cylinder block, 10. Mounting frame, 11. First intake pipe, 12. Filter assembly, 121. Fixing ring, 122. Connecting bucket, 123. Fixing buckle, 124. Connecting pipe, 125. Valve, 126. Filter disc, 127. Flow pipe, 13. Exhaust pipe, 14. Box door, 15. Control box, 16. Second intake pipe, 17. Flow head, 18. Piston, 19. Gas passage, 20. First connecting pipe, 21. Second connecting pipe, 22. Mounting chamber, 23. Sealing ring. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic diagram of a preferred embodiment of the test gas path conversion device provided by this utility model; Figure 2 This invention provides a structural schematic diagram of the second air intake pipe. Figure 3 A schematic diagram of the flow tube is provided for this utility model; Figure 4 This utility model provides a structural schematic diagram of the exhaust pipe; Figure 5 A schematic diagram of the filter disc is provided for this utility model. The test gas path conversion device includes: a base plate 1;

[0030] Test bench 2 is installed on the top of base plate 1. A first flow frame 7 is installed on the top of the test bench 2 near one side. A second flow frame 8 is installed on the top of the first flow frame 7. The second flow frame 8 has two installation chambers 22 inside. A first pair of connecting pipes 20 is installed inside one of the installation chambers 22 through a sealing ring 23. A second pair of connecting pipes 21 is installed inside the other installation chamber 22 through a sealing ring 23. A cylinder 9 is installed on the top of the second flow frame 8.

[0031] Two pistons 18 are installed inside the first flow frame 7. Each piston 18 has a gas passage 19 inside. A mounting frame 10 is installed on one side of the first flow frame 7. A first air inlet pipe 11 is installed on one side of the inner wall of the mounting frame 10. An air outlet pipe is installed on one side of the inner wall of the mounting frame 10. A second air inlet pipe 16 is installed on the other side of the first flow frame 7 through a docking box 6. An exhaust pipe 3 is installed at the bottom of the docking box 6.

[0032] The inlet and outlet of the cylinder 9 are connected to the first pair of pipes 20 and the second pair of pipes 21, respectively. The first pair of pipes 20 and the second pair of pipes 21 are gas passages 19 inserted into the two pistons 18. The mounting chamber 22 is opened at the connection between the second flow frame 8 and the first flow frame 7. The first flow frame 7 also has multiple gas flow passages. The first intake pipe 11, the exhaust pipe 13, the second intake pipe 16 and the exhaust pipe 3 are respectively connected to the gas flow passages inside the first flow frame 7.

[0033] An installation base 5 is mounted on the front of the first flow frame 7, and an operation screen 4 is mounted on the front of the installation base 5.

[0034] The operation panel 4 can set the operating parameters of the equipment on the base plate 1.

[0035] A control box 15 is installed on one side of the test bench 2, and a door 14 is rotatably connected to the other side of the control box 15.

[0036] The door 14 is equipped with a lock, and the control box 15 contains a power switch and a controller for controlling the operation of the equipment.

[0037] The other end of the first air intake pipe 11 and the second air intake pipe 16 is equipped with a filter assembly 12, and the filter assembly 12 includes a retaining ring 121.

[0038] The filter assembly 12 can filter the gas entering the test equipment and reduce the dust content.

[0039] One end of the fixed ring 121 is fixedly connected to the connecting bucket 122, and the other end of the connecting bucket 122 is fixedly connected to the flow pipe 127;

[0040] The flow tube 127 is a hollow cylinder, and the connecting hopper 122 is conical.

[0041] A filter disc 126 is installed inside the flow pipe 127 via a fixing buckle 123, and a valve 125 is installed at the other end of the flow pipe 127 via a connecting pipe 124;

[0042] Valve 125 can be opened manually or automatically. Filter disc 126 performs the filtering effect. The flow pipe 127 can be disassembled for cleaning.

[0043] The working principle of the test gas path conversion device provided by this utility model is as follows:

[0044] A second flow frame 8 is installed on the test bench 2 via the first flow frame 7, forming a single unit. Then, the first and second connecting pipes 20 and 21 are installed in the mounting chamber 22 within the second flow frame 8 using sealing rings 23, ensuring a tight seal at the connection between the first and second connecting pipes 20 and 21. The first intake pipe 11, exhaust pipe 13, second intake pipe 16, and exhaust pipe 3 are then installed in opposite directions on the first flow frame 7, facilitating the adjustment of the piston 18's position within the second flow frame 8 by gas flowing from different directions. In actual use, gas entering through the second intake pipe 16 flows into the first connecting pipe 20 via gas channel 19, then exits through the cylinder 9 and the second connecting pipe 21, allowing the gas to flow in reverse within the two gas channels 19 before finally exiting through the exhaust pipe 3. Meanwhile, the second intake pipe 16 pushes the piston to move and compress the sealing ring to seal the product. Air entering through the first intake pipe 11 is used to test the product's performance. Figure 3 and Figure 4 The arrows in the diagram indicate the direction of gas flow.

[0045] Compared with related technologies, the test gas path conversion device provided by this utility model has the following beneficial effects:

[0046] To improve the efficiency of the test gas path switching module, a second flow frame 8 is installed on the test bench 2 through the first flow frame 7, so that the first flow frame 7 and the second flow frame 8 form a whole. Then, the first pair of connecting pipes 20 and the second pair of connecting pipes 21 are installed in the installation chamber 22 in the second flow frame 8 through the sealing ring 23, thereby ensuring the sealing of the connection between the first pair of connecting pipes 20 and the second pair of connecting pipes 21. Then, the first air inlet pipe 11, the air outlet pipe 13, the second air inlet pipe 16, and the exhaust pipe 3 are installed in opposite directions to the first flow frame 7, so that the piston 18 can be pushed by gas from different directions to adjust its position inside the second flow frame 8. Through a single-function module, the test gas path can be switched by changing the tooling, which can test different products, greatly improve the efficiency of the module and save costs.

[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A test gas path switching device, characterized in that, include: Base plate; A test stand is installed on the top of a base plate. A first flow frame is installed on the top of the test stand near one side. A second flow frame is installed on top of the first flow frame. The second flow frame has two installation chambers inside. One installation chamber has a first pair of connecting pipes installed inside through a sealing ring. The other installation chamber has a second pair of connecting pipes installed inside through a sealing ring. A cylinder is installed on top of the second flow frame. Two pistons are installed inside the first flow frame. Each piston has a gas passage inside. A mounting frame is installed on one side of the first flow frame. A first air inlet pipe is installed on one side of the inner wall of the mounting frame, and an air outlet pipe is installed on one side of the inner wall of the mounting frame. A second air inlet pipe is installed on the other side of the first flow frame through a docking box. An exhaust pipe is installed at the bottom of the docking box.

2. The test gas path switching device according to claim 1, characterized in that, An installation base is mounted on the front of the first flow frame, and an operation screen is mounted on the front of the installation base.

3. The test gas path switching device according to claim 1, characterized in that, A control box is installed on one side of the test bench, and a door is rotatably connected to the other side of the control box.

4. The test gas path switching device according to claim 1, characterized in that, The other end of the first and second air intake pipes is equipped with a filter assembly, which includes a retaining ring.

5. The test gas path switching device according to claim 4, characterized in that, One end of the fixed ring is fixedly connected to a connecting bucket, and the other end of the connecting bucket is fixedly connected to a flow pipe.

6. The test gas path switching device according to claim 5, characterized in that, A filter disc is installed inside the flow tube via a fixing buckle, and a valve is installed at the other end of the flow tube via a connecting pipe.

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