Calibration gas generator

Abstract

The utility model relates to the technical field of gas generators, and discloses a calibration gas generator which comprises a calibration gas generator shell, a handle is fixedly connected to the upper surface of the calibration gas generator shell, a gas conveying pipe is fixedly connected to the interior of the calibration gas generator shell, and a quick release assembly is arranged on the outer wall of the gas conveying pipe. And the quick release assembly comprises a first connecting block, a first connecting pipe, a limiting block and a second connecting plate, the inner wall of the first connecting block is fixedly connected to the outer wall of the gas conveying pipe, the inner wall of the first connecting pipe is slidably connected to the outer wall of the first connecting block, and the outer wall of the limiting block is rotatably connected to the inner walls of the first connecting block and the first connecting pipe. According to the gas conveying pipe, the third connecting plate is shifted to enable the limiting block to rotate with the first connecting rod as the circle center, the limiting block rotates to the position where the first connecting block enters the groove for limiting, and when quick replacement is needed, the third connecting plate is shifted to the position above the first connecting block, so that the gas conveying pipe and the first connecting block can slide out.

Description

Technical Field

[0001] This utility model relates to the field of gas generator technology, and in particular to a calibration gas generator. Background Technology

[0002] A calibration gas generator is a device used to produce standard gases of precise concentrations, widely used in environmental monitoring, industrial safety, and laboratory analysis. Its core function is to provide a traceable reference gas for gas detectors, analytical instruments, or sensors, ensuring the accuracy and reliability of measurement data. Traditional gas generators typically use cylinder-based gas sources or have a built-in gas generation module, connected to the target device via piping for calibration.

[0003] Currently, the gas source connection for calibration gas generators typically uses threaded joints or flange connections. Threaded joints achieve pipeline sealing through rotational tightening, relying on the mechanical interlocking force of the threads and the sealing ring to prevent gas leakage. In addition, some generators use a fixed pipeline design, requiring the removal of multiple sets of bolts or joints for gas source replacement, making the operation process complex.

[0004] However, the above connection method has problems in practical applications. When changing the gas source or connecting to different equipment, it is necessary to repeatedly loosen and tighten the pipe joints, which is time-consuming and prone to seal failure due to thread wear. When different gas sources need to be frequently switched at the environmental monitoring site, technicians often need to carry multiple sizes of tools and spend a lot of time disassembling and reassembling the pipeline, which greatly reduces work efficiency. Therefore, a calibration gas generator is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a calibration gas generator, which aims to improve the problem that when changing the gas source or connecting to different equipment, it is necessary to repeatedly loosen and tighten the pipe joints, which is time-consuming and prone to sealing failure due to thread wear.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a calibration gas generator, comprising a calibration gas generator housing, a handle fixedly connected to the upper surface of the calibration gas generator housing, a gas supply pipe fixedly connected inside the calibration gas generator housing, and a quick-release assembly provided on the outer wall of the gas supply pipe;

[0007] The quick-release assembly includes a first connecting block, a first connecting pipe, a limiting block, and a second connecting plate. The inner wall of the first connecting block is fixedly connected to the outer wall of the gas supply pipe, the inner wall of the first connecting pipe is slidably connected to the outer wall of the first connecting block, the outer wall of the limiting block is rotatably connected to the inner wall of the first connecting block and the first connecting pipe, the lower surface of the second connecting plate is fixedly connected to the outer wall of the first connecting pipe, the inner wall of the second connecting plate is fixedly connected to a first connecting rod, the inner wall of the limiting block is rotatably connected to the outer wall of the first connecting rod, the outer wall of the limiting block is fixedly connected to a third connecting plate, and the inner wall of the first connecting pipe is fixedly connected to the second connecting pipe and a sealing ring.

[0008] Furthermore, a connecting plate is fixedly connected to the outer wall of the calibration gas generator housing, and a fixing block and a fixing block are fixedly connected to the outer wall of the connecting plate.

[0009] Furthermore, a rotating block is rotatably connected to the inner wall of the fixed block, a hydraulic rod is fixedly connected to the outer wall of the rotating block, and a rotating block is fixedly connected to the output end of the hydraulic rod.

[0010] Furthermore, a connecting block three is rotatably connected to the outer wall of the rotating block two, and a connecting rod two is rotatably connected to the inner wall of the connecting block three.

[0011] Furthermore, a fixing block three is fixedly connected to the outer wall of the connecting rod two, and a connecting plate four is fixedly connected to the lower surface of the fixing block three.

[0012] Furthermore, a fixing block four is fixedly connected to the upper surface of the connecting plate four, a connecting rod three is fixedly connected to the inner wall of the fixing block four, and a spring is fixedly connected to the outer wall of the connecting rod three.

[0013] Furthermore, a connecting rod four is fixedly connected to one end of the spring, and a connecting block four is fixedly connected to the outer wall of the connecting rod four.

[0014] Furthermore, a second connecting block is fixedly connected to the inner wall of the fourth connecting block, and the outer wall of the second connecting block is rotatably connected to the inner wall of the second fixed block.

[0015] This utility model has the following beneficial effects:

[0016] In this utility model, by moving the connecting plate three, the limiting block rotates around the connecting rod one as the center, so that the limiting block rotates into the groove of the connecting block one for limiting. When a quick replacement is needed, the connecting plate three is moved to the top of the connecting block one, so that the air supply pipe and the connecting block one can slide out. The connection port of the connecting pipe two is sealed with a sealing ring to prevent air leakage during the delivery process. This enables quick replacement of air sources of different specifications or connection of different equipment, reduces the time required to repeatedly loosen and tighten the pipe joints, and thus improves the practicality of the device.

[0017] In this invention, a hydraulic rod fixed on rotating block one pushes rotating block two, causing connecting block three to rotate at a certain angle around connecting rod two on fixed block three. Fixed block one on connecting plate one ensures stable rotation of rotating block one. When the hydraulic rod retracts and extends, connecting rod four on connecting block four, in conjunction with connecting rod three on fixed block four, stretches the spring, causing connecting plate four to rotate at an angle. This increases the contact area with the ground, improves stability, and prevents swaying or tipping on uneven ground, thereby improving the practicality of the device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a calibration gas generator proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the gas delivery pipe section of a calibration gas generator proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of a cross-sectional view of the connecting pipe of a calibration gas generator proposed in this utility model.

[0021] Figure 4 This is a schematic diagram of the sealing ring structure of a calibration gas generator proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of the two-part structure of the connecting block of a calibration gas generator proposed in this utility model;

[0023] Figure 6 for Figure 5 Enlarged view of point A in the image.

[0024] Legend:

[0025] 1. Calibration gas generator housing; 2. Handle; 3. Gas delivery pipe; 4. Connecting block one; 5. Connecting pipe one; 6. Connecting pipe two; 7. Connecting plate one; 8. Fixing block one; 9. Connecting plate two; 10. Connecting rod one; 11. Limiting block; 12. Connecting plate three; 13. Sealing ring; 14. Rotating block one; 15. Hydraulic rod; 16. Fixing block two; 17. Connecting block two; 18. Rotating block two; 19. Connecting block three; 20. Connecting rod two; 21. Fixing block three; 22. Fixing block four; 23. Connecting rod three; 24. Spring; 25. Connecting rod four; 26. Connecting block four; 27. Connecting plate four. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figures 1-5 The present invention provides an embodiment of a calibration gas generator, comprising a calibration gas generator housing 1. Existing calibration gas generator housing 1 typically consists of a gas mixing chamber, a mass flow controller, a sealing assembly, a control circuit, a display screen, a bracket, and other components, used for calibrating gases. This is prior art and will not be described in detail here. A handle 2 is fixedly connected to the upper surface of the calibration gas generator housing 1 for convenient carrying. A gas delivery pipe 3 is fixedly connected inside the calibration gas generator housing 1, and a quick-release assembly is provided on the outer wall of the gas delivery pipe 3.

[0028] The quick-release assembly includes a connecting block 4, a connecting pipe 5, a limiting block 11, and a connecting plate 9. The inner wall of the connecting block 4 is fixedly connected to the outer wall of the gas pipe 3. The inner wall of the connecting pipe 5 is slidably connected to the outer wall of the connecting block 4. The outer wall of the limiting block 11 is rotatably connected to the inner walls of the connecting block 4 and the connecting pipe 5. By rotating the limiting block 11 around the connecting rod 10, the limiting block 11 rotates into the groove of the connecting block 4 for limiting. The lower surface of the connecting plate 9 is fixedly connected to the outer wall of the connecting pipe 5. The connecting rod 10 is fixedly connected to the inner wall of the connecting plate 9. The inner wall of the limiting block 11 rotates... Connecting to the outer wall of connecting rod 10, a connecting plate 3 12 is fixedly connected to the outer wall of limiting block 11. The connecting plate 3 12 cooperates with connecting block 4 to allow the gas pipe 3 and connecting block 4 to slide out, achieving the effect of quickly changing gas sources of different specifications or connecting different equipment. A sealing ring 13 is fixedly connected to the inner wall of connecting pipe 5 and connecting pipe 6. The sealing ring 13 is sealed to prevent gas leakage during the delivery process. A connecting plate 7 is fixedly connected to the outer wall of the calibration gas generator housing 1. A fixing block 1 8 and fixing block 2 16 are fixedly connected to the outer wall of connecting plate 7.

[0029] Reference Figures 1-6A rotating block 14 is rotatably connected to the inner wall of a fixed block 18. A hydraulic rod 15 is fixedly connected to the outer wall of a rotating block 14. Through the cooperation of the hydraulic rod 15 and a rotating block 28, a connecting block 39 rotates at a certain angle around a connecting rod 20, thereby driving a connecting block 27 to rotate. The output end of the hydraulic rod 15 is fixedly connected to a rotating block 28. A connecting block 39 is rotatably connected to the outer wall of a rotating block 28. A connecting rod 20 is rotatably connected to the inner wall of a connecting block 39. A fixed block 31 is fixedly connected to the outer wall of a connecting rod 20. A connecting plate 4 27 is fixedly connected to the lower surface of a fixed block 31. A fixing block 22 is fixedly connected to the upper surface of plate 4 27. A connecting rod 23 is fixedly connected to the inner wall of fixing block 4 22. A spring 24 is fixedly connected to the outer wall of connecting rod 3 23. The spring 24 is stretched by connecting rod 25 on connecting block 4 26 in conjunction with connecting rod 3 23 on fixing block 4 22, thereby rotating connecting plate 4 27 at an angle and increasing the contact area with the ground. One end of spring 24 is fixedly connected to connecting rod 4 25. Connecting block 4 26 is fixedly connected to the outer wall of connecting rod 4 25. Connecting block 2 17 is fixedly connected to the inner wall of connecting block 4 26. The outer wall of connecting block 2 17 is rotatably connected to the inner wall of fixing block 2 16.

[0030] Working principle: When the calibration gas generator needs to calibrate the gas, the gas is delivered through connecting pipe 5 to the gas supply pipe 3, and then to the calibration gas generator housing 1 for calibration. By moving connecting plate 3 12, the limiting block 11 rotates around connecting rod 10, causing the limiting block 11 to rotate into the groove of connecting block 4 for limiting. When quick replacement is needed, connecting plate 3 12 is moved to the top of connecting block 4, allowing the gas supply pipe 3 and connecting block 4 to slide out. The connection port of connecting pipe 2 6 is sealed with sealing ring 13 to prevent air leakage during delivery. Connecting plate 2 9 is used to fix connecting rod 10 to ensure stable rotation of limiting block 11, achieving quick replacement without... For gas sources of the same specifications or connecting different devices, the hydraulic rod 15 fixed on the rotating block 14 pushes the rotating block 2 18, causing the connecting block 3 19 to rotate at a certain angle with the connecting rod 20 on the fixed block 3 21 as the center. This causes the connecting block 2 17 to rotate within the fixed block 2 16. The fixed block 1 8 fixed on the connecting plate 1 7 ensures the stable rotation of the rotating block 1 14. When the hydraulic rod 15 retracts and extends, the connecting rod 25 on the connecting block 4 26, in conjunction with the connecting rod 23 on the fixed block 4 22, stretches the spring 24, causing the connecting plate 4 27 to rotate at an angle, increasing the contact area with the ground and improving stability. The handle 2 is used for convenient carrying of the calibration gas generator housing 1.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A calibration gas generator, comprising a calibration gas generator housing (1), characterized in that: A handle (2) is fixedly connected to the upper surface of the calibration gas generator housing (1), and a gas supply pipe (3) is fixedly connected inside the calibration gas generator housing (1). A quick-release assembly is provided on the outer wall of the gas supply pipe (3). The quick-release assembly includes a connecting block (4), a connecting pipe (5), a limiting block (11), and a connecting plate (9). The inner wall of the connecting block (4) is fixedly connected to the outer wall of the gas pipe (3). The inner wall of the connecting pipe (5) is slidably connected to the outer wall of the connecting block (4). The outer wall of the limiting block (11) is rotatably connected to the inner wall of the connecting block (4) and the connecting pipe (5). The lower surface of the connecting plate (9) is fixedly connected to the outer wall of the connecting pipe (5). The inner wall of the connecting plate (9) is fixedly connected to a connecting rod (10). The inner wall of the limiting block (11) is rotatably connected to the outer wall of the connecting rod (10). The outer wall of the limiting block (11) is fixedly connected to a connecting plate (12). The inner wall of the connecting pipe (5) is fixedly connected to a sealing ring (13) and the connecting pipe (6).

2. A calibration gas generator according to claim 1, characterized in that: The outer wall of the calibration gas generator housing (1) is fixedly connected to a connecting plate 1 (7), and the outer wall of the connecting plate 1 (7) is fixedly connected to a fixing block 1 (8) and a fixing block 2 (16).

3. A calibration gas generator according to claim 2, characterized in that: The inner wall of the fixed block 1 (8) is rotatably connected to the rotating block 1 (14), the outer wall of the rotating block 1 (14) is fixedly connected to the hydraulic rod (15), and the output end of the hydraulic rod (15) is fixedly connected to the rotating block 2 (18).

4. A calibration gas generator according to claim 3, characterized in that: The outer wall of the rotating block 2 (18) is rotatably connected to the connecting block 3 (19), and the inner wall of the connecting block 3 (19) is rotatably connected to the connecting rod 2 (20).

5. A calibration gas generator according to claim 4, characterized in that: The outer wall of the connecting rod 2 (20) is fixedly connected to the fixing block 3 (21), and the lower surface of the fixing block 3 (21) is fixedly connected to the connecting plate 4 (27).

6. A calibration gas generator according to claim 5, characterized in that: A fixing block four (22) is fixedly connected to the upper surface of the connecting plate four (27), a connecting rod three (23) is fixedly connected to the inner wall of the fixing block four (22), and a spring (24) is fixedly connected to the outer wall of the connecting rod three (23).

7. A calibration gas generator according to claim 6, characterized in that: One end of the spring (24) is fixedly connected to a connecting rod four (25), and a connecting block four (26) is fixedly connected to the outer wall of the connecting rod four (25).

8. A calibration gas generator according to claim 7, characterized in that: The inner wall of the connecting block four (26) is fixedly connected to the connecting block two (17), and the outer wall of the connecting block two (17) is rotatably connected to the inner wall of the fixed block two (16).

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