Gas cylinder sealing performance testing device

Abstract

The utility model discloses a gas cylinder sealing performance testing device, and belongs to the field of gas cylinder testing. The technical scheme adopted by the utility model is as follows: the gas cylinder leakproofness testing device comprises a fixed rack, and a gas cylinder leakproofness testing part is arranged above the fixed rack and can be used for testing the leakproofness of a gas cylinder; the device optimizes and improves the structure of an existing gas cylinder leakproofness testing device, performs multi-angle testing on a gas cylinder by arranging the outer wall testing component and the side wall testing component, effectively improves the quality and precision of gas cylinder leakproofness testing, can realize automatic testing of the gas cylinder, reduces the complexity of manual assistance, and improves the working efficiency. Therefore, labor loss is reduced.

Description

Technical Field

[0001] This utility model relates to the field of gas cylinder inspection, and in particular to a gas cylinder sealing inspection device. Background Technology

[0002] A gas cylinder is a portable pressure vessel with a bottle-shaped main structure, typically filled with gas (compressed gas, liquefied gas, dissolved or adsorbed gas, etc.). During use, gas cylinders require regular inspection and maintenance, including visual inspection, pressure testing, and leak detection, to ensure their safety and reliability.

[0003] During the production process, gas cylinders typically undergo a tightness test to ensure their performance during use. Currently, the tightness test is mainly conducted by injecting gas with a pump and then manually assisting with the process. However, this method requires a significant amount of manual labor, and human judgment is subject to a certain degree of error. Therefore, optimization and improvement are needed. Utility Model Content

[0004] This invention addresses the problems existing in the prior art by providing a gas cylinder sealing inspection device, which optimizes the original equipment and effectively improves the quality of gas cylinder sealing inspection.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A gas cylinder sealing test device, comprising:

[0007] Fixed frame;

[0008] A hydraulic gas injection component is installed at the bottom of the fixed frame, and the hydraulic gas injection component can perform gas injection into the gas cylinder.

[0009] A workbench is positioned above the hydraulic injection component, and the workbench provides a limiting and fixing function for the gas cylinder.

[0010] An outer wall inspection component is installed on the outer side of the workbench, and the outer wall inspection component can provide an outer wall pressure inspection function for the gas cylinder.

[0011] The rear fixing bracket is fitted to the rear side of the worktable;

[0012] The side wall inspection component is installed above the rear fixing frame and is capable of inspecting the side wall of the gas cylinder for leaks.

[0013] Preferably, the hydraulic air injection component includes a hydraulic cylinder, a position limiting bracket, a miniature air pump, and a rotary interface. The hydraulic cylinder is positioned at the lowest point of the hydraulic air injection component. The output end of the hydraulic cylinder is equipped with a miniature air pump, and the position limiting bracket is positioned on the outer side of the hydraulic cylinder. The upper output end of the miniature air pump is equipped with a rotary interface, which is positioned above the worktable.

[0014] Preferably, the outer wall inspection component includes a mounting bracket, a position correction cylinder, an output rod, and a pressure sensor. The mounting bracket is fixedly installed on the outer side of the workbench. The mounting bracket is provided with multiple sliding rails, and multiple position correction cylinders are slidably arranged on the mounting bracket at equal intervals. An output rod is fitted on each position correction cylinder, and a pressure sensor is fitted at the end of each output rod.

[0015] Preferably, the sidewall inspection component includes a mounting side plate, independent inspection units, independent mating shafts, and annular blades. The mounting side plate is vertically arranged on the rear side of the workbench. Multiple evenly distributed independent inspection units are arranged on the inner side of the mounting side plate. Each independent inspection unit is provided with an independent mating shaft. Annular blades are arranged on the outer side of the independent mating shafts. The direction of the annular blades is perpendicular to that of the mounting side plate.

[0016] Preferably, the pressure sensor is a Keller PA-21Y.

[0017] Compared with the prior art, the present invention provides a gas cylinder sealing test device, which has the following beneficial effects: the device optimizes and improves the structure of the existing gas cylinder sealing test device, and by setting the outer wall test component and the side wall test component, the gas cylinder is tested from multiple angles, which effectively improves the quality and accuracy of the gas cylinder sealing test; at the same time, the device can realize automatic gas cylinder inspection, reduce the complexity of manual assistance, and thus save labor costs. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a specific embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the outer wall inspection component in a specific embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of the sidewall inspection component in a specific embodiment of the present invention.

[0021] In the diagram: 1. Fixed frame; 2. Hydraulic injection component; 3. Workbench; 4. Outer wall inspection component; 5. Side wall inspection component; 6. Rear fixed frame; 101. Hydraulic cylinder; 102. Position limit bracket; 103. Miniature air pump; 104. Rotary interface; 201. Mounting bracket; 202. Position correction cylinder; 203. Output rod; 204. Pressure sensor; 301. Mounting side plate; 302. Independent inspection unit; 303. Independent mating shaft; 304. Annular blade. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Example 1:

[0025] Reference Figure 1-3 A gas cylinder sealing test device, comprising:

[0026] Fixed frame 1;

[0027] The hydraulic air injection component 2 is installed at the bottom of the fixed frame 1, and the hydraulic air injection component 2 can perform air injection into the gas cylinder.

[0028] The workbench 3 is positioned above the hydraulic air injection component 2, and the workbench 3 provides a limiting and fixing function for the gas cylinder.

[0029] The outer wall inspection component 4 is installed on the outer side of the workbench 3. The outer wall inspection component 4 can provide the outer wall pressure inspection function for the gas cylinder.

[0030] The rear fixing bracket 6 is configured to be positioned at the rear side of the workbench 3;

[0031] The side wall inspection component 5 is installed above the rear fixing frame 6, and the side wall inspection component 5 can perform leakage inspection on the side wall of the gas cylinder.

[0032] The hydraulic air injection component 2 includes a hydraulic cylinder 101, a position limiting bracket 102, a micro air pump 103, and a rotating interface 104. The hydraulic cylinder 101 is positioned at the lowest point of the hydraulic air injection component 2. The micro air pump 103 is mounted on the output end of the hydraulic cylinder 101, and the position limiting bracket 102 is mounted on the outer side of the hydraulic cylinder 101. The rotating interface 104 is mounted on the upper output end of the micro air pump 103 and is positioned above the worktable 3. The hydraulic air injection component 2 uses the micro air pump 103 to inflate the gas cylinder. Simultaneously, the rotating interface 104 can rotate the gas cylinder along a fixed axis according to testing requirements, thereby assisting the testing component in performing a sealing test.

[0033] The outer wall inspection component 4 includes a mounting bracket 201, a position correction cylinder 202, an output rod 203, and a pressure sensor 204. The mounting bracket 201 is fixedly installed on the outer side of the workbench 3. Multiple sliding rails are provided on the mounting bracket 201, and multiple equidistantly distributed position correction cylinders 202 are slidably mounted on the mounting bracket 201. An output rod 203 is mounted on each position correction cylinder 202, and a pressure sensor 204 is mounted at the end of each output rod 203. The position correction cylinder 202 adjusts its actual position on the mounting bracket 201, and the position of the pressure sensor 204 is adjusted via the output rod 203. This, in conjunction with the hydraulic injection component 2, performs an outer wall sealing test on the gas cylinder.

[0034] The pressure sensor 204 is a Keller PA-21Y model. The Keller PA-21Y pressure sensor is a capacitive pressure sensor, which measures pressure by changing the capacitance of a capacitor during operation. When detecting pressure changes on the outer wall of a gas cylinder, the spacing or area of ​​the capacitor plates changes, resulting in a change in capacitance, thus achieving the purpose of detecting the gas cylinder's airtightness.

[0035] Example 2:

[0036] Reference Figure 1-3Similar to Embodiment 1, but further, the sidewall inspection component 5 includes a mounting side plate 301, independent inspection units 302, independent mating shafts 303, and annular blades 304. The mounting side plate 301 is vertically positioned on the rear side of the workbench 3. Multiple evenly distributed independent inspection units 302 are fitted inside the mounting side plate 301, each with an independent mating shaft 303. Annular blades 304 are fitted outside the independent mating shafts 303, with the direction of the annular blades 304 perpendicular to the mounting side plate 301. The annular blades 304 are positioned on the outer side of the gas cylinder to be inspected. When the gas cylinder's sealing is poor, leakage will occur, causing the annular blades 304 to rotate, which transmits the signal to the independent inspection units 302, thus achieving the function of inspecting the gas cylinder's sealing.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A gas cylinder sealing test device, characterized in that, include: Fixed frame (1); A hydraulic gas injection component (2) is installed at the bottom of the fixed frame (1), and the hydraulic gas injection component (2) can inject gas into the gas cylinder. The workbench (3) is positioned above the hydraulic injection component (2), and the workbench (3) provides a limiting and fixing function for the gas cylinder; The outer wall inspection component (4) is installed on the outside of the workbench (3). The outer wall inspection component (4) can provide the outer wall pressure inspection function for the gas cylinder. The rear fixing bracket (6) is fitted to the rear side of the workbench (3); The side wall inspection component (5) is installed above the rear fixing bracket (6) and can perform leak inspection on the side wall of the gas cylinder.

2. The gas cylinder sealing test device according to claim 1, characterized in that, The hydraulic air injection component (2) includes a hydraulic cylinder (101), a position limiting bracket (102), a micro air pump (103), and a rotary interface (104). The hydraulic cylinder (101) is located at the lowest position of the hydraulic air injection component (2). The output end of the hydraulic cylinder (101) is equipped with a micro air pump (103), and the position limiting bracket (102) is located on the outer side of the hydraulic cylinder (101). The upper output end of the micro air pump (103) is equipped with a rotary interface (104), and the rotary interface (104) is located above the worktable (3).

3. The gas cylinder sealing test device according to claim 1, characterized in that, The outer wall inspection component (4) includes a mounting bracket (201), a position correction cylinder (202), an output rod (203), and a pressure sensor (204). The mounting bracket (201) is fixedly installed on the outer side of the workbench (3). The mounting bracket (201) is provided with multiple sliding rails, and multiple equidistantly distributed position correction cylinders (202) are slidably arranged on the mounting bracket (201). The position correction cylinder (202) is provided with an output rod (203), and a pressure sensor (204) is provided at the end of each output rod (203).

4. The gas cylinder sealing test device according to claim 1, characterized in that, The side wall inspection component (5) includes a mounting side plate (301), an independent inspection unit (302), an independent mating shaft (303), and an annular blade (304). The mounting side plate (301) is vertically arranged on the rear side of the workbench (3). Multiple evenly distributed independent inspection units (302) are arranged on the inner side of the mounting side plate (301). Each independent inspection unit (302) is provided with an independent mating shaft (303). An annular blade (304) is arranged on the outer side of the independent mating shaft (303). The direction of the annular blade (304) is perpendicular to that of the mounting side plate (301).

5. The gas cylinder sealing test device according to claim 3, characterized in that, The pressure sensor (204) is model Keller PA-21Y.

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