Gas tank sealing test fixture

Abstract

This utility model relates to the field of testing fixtures, and in particular to a gas cylinder sealing test fixture. The gas cylinder sealing test fixture includes: a water tank, an immersion mechanism, and a testing mechanism. The water tank has a water tank. The immersion mechanism includes a mounting frame, a lifting drive assembly, and a clamping assembly. The mounting frame is connected to the lifting drive assembly and has a detection area and a water-avoiding area. The lifting drive assembly drives the detection area of ​​the mounting frame to immerse or detach from the test liquid. The clamping assembly is positioned at the detection area. The testing mechanism includes an injection drive assembly and an injection assembly. The injection drive assembly drives the injection assembly to engage or disengage from the gas cylinder's injection port. This utility model's gas cylinder sealing test fixture offers simple operation and a high degree of automation throughout the testing process, effectively reducing the gas cylinder testing time and improving testing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of inspection tool technology, and in particular to an inspection tool for testing the sealing performance of gas cylinders. Background Technology

[0002] As containers for storing gases, the airtightness of gas cylinders directly affects their safety and performance. During the production process, gas cylinders need to undergo airtightness testing to ensure they meet quality standards. Traditionally, soapy water is applied to the surface of the gas cylinder, and air is injected into the inlet. The airtightness is then judged by observing whether bubbles emerge from the surface. However, this method of applying soapy water to the surface of the gas cylinder, injecting air into the inlet, and observing whether bubbles emerge is time-consuming and inefficient. Utility Model Content

[0003] Therefore, it is necessary to provide a gas cylinder sealing test fixture to address the technical problem of poor gas cylinder airtightness testing efficiency.

[0004] A gas cylinder sealing performance testing fixture is used to test the sealing performance of a gas cylinder. The gas cylinder has an injection port. The gas cylinder sealing performance testing fixture includes a water tank, an immersion mechanism, and a testing mechanism. The water tank has a water trough filled with test liquid. The immersion mechanism includes a mounting frame, a lifting drive assembly, and a clamping assembly. The mounting frame is connected to the lifting drive assembly and has a detection area and a water-avoiding area. The lifting drive assembly drives the detection area of ​​the mounting frame to immerse or detach from the test liquid. The clamping assembly is used to clamp the gas cylinder. The clamping assembly is connected to the mounting frame and is positioned at the detection area. The testing mechanism includes an injection drive assembly and an injection assembly. The injection assembly receives air supplied by a gas source and injects it into the gas cylinder through the injection port. The injection drive assembly is connected to the mounting frame and positioned at the water-avoiding area. The injection drive assembly drives the injection assembly to engage or disengage from the gas cylinder's injection port.

[0005] In one embodiment, the clamping assembly includes a bottle carrier, a bottle pressing component, and a locking assembly. The bottle carrier has a bottle slot. The bottle pressing component is rotatably connected to the bottle carrier and rotates around the bottle carrier to move closer to or away from the bottle slot. The locking assembly engages with the bottle pressing component and is mounted on the bottle carrier.

[0006] In one embodiment, the bottle carrier includes two bottle holders and a connecting frame. Each bottle holder is provided with a bottle slot. The connecting frame connects each bottle holder and is rotatably connected to the bottle pressing component.

[0007] In one embodiment, the mounting bracket is provided with the same number of limiting grooves as the bottle holders, and each bottle holder is respectively disposed in each of the limiting grooves.

[0008] In one embodiment, the bottle holder is provided with a slot, and the locking assembly is installed inside the bottle holder and engages with the portion of the bottle pressing component that enters the slot.

[0009] In one embodiment, the locking assembly includes an adapter block, a locking tongue, and an elastic element. The adapter block is slidably disposed within the bottle holder in a first direction. The locking tongue is connected to the adapter block and reciprocates in the first direction to enter or disengage from the slot. The elastic element provides elastic force for the locking tongue to enter or disengage from the slot.

[0010] The locking tongue has a first working position and a second working position. When the locking tongue is in the first working position, the locking tongue enters the slot and forms a locking space with the bottom of the slot to lock with the bottle pressing component. When the locking tongue is in the second working position, the locking tongue disengages from the slot.

[0011] In one embodiment, the locking assembly further includes a push rod connected to the adapter block.

[0012] In one embodiment, the bottle carrier groove is arranged in a V shape.

[0013] In one embodiment, the bottle pressing component includes a rotating section, an elastic section, and a snap-fit ​​section. The rotating section is rotatably connected to the bottle carrier, the elastic section has a contact groove, the contact groove is positioned corresponding to the bottle carrier groove, and the snap-fit ​​section snaps into the locking assembly.

[0014] In one embodiment, the gas injection assembly includes a connecting plate, a mounting plate, and a gas inlet. The connecting plate is connected to the slider of the gas injection drive assembly, the mounting plate is connected to the connecting plate and is located within the detection area, and the gas inlet is used to receive an external gas source and communicates with the gas injection port of the gas tank.

[0015] In one embodiment, the rotating segment, the elastic segment, and the snap-fit ​​segment are integrally formed by bending a metal rod.

[0016] In one embodiment, the lifting drive assembly includes a fixed frame and a lifting drive component, the fixed frame is connected to the water tank, the lifting drive component is connected to the fixed frame, and the mounting frame is slidably connected to the fixed frame.

[0017] In one embodiment, the gas injection drive assembly includes a gas injection drive component, a guide rail, and a slider. The guide rail is mounted on the mounting bracket, the slider slides along the guide rail and is connected to the gas injection assembly, and the gas injection drive component drives the slider to slide along the guide rail.

[0018] The beneficial effects of the gas tank sealing test fixture provided in this application are as follows: by clamping the gas tank on the clamping assembly of the test area, using the lifting drive assembly to immerse the test area in the test liquid in the water tank, and at the same time, the gas injection assembly of the test mechanism injects gas into the gas tank through the gas injection port. If there is a leak in the gas tank, the gas will generate bubbles in the test liquid, thereby directly detecting the sealing performance of the gas tank. This facilitates a quick determination of whether the sealing performance of the gas tank meets the requirements. The entire testing process is simple to operate, highly automated, and effectively reduces the testing time of the gas tank, thereby improving the testing efficiency of the gas tank. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the gas tank installation for the gas tank sealing test fixture shown in this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of the gas tank tested by the gas tank sealing test fixture shown in this utility model.

[0021] Figure 3 for Figure 1 The diagram shows the connection between the immersion mechanism and the testing mechanism of the gas tank sealing test fixture.

[0022] Figure 4 for Figure 3 A schematic diagram of the clamping assembly of the soaking mechanism shown;

[0023] Figure 5 for Figure 4 A cross-sectional schematic diagram of the clamping assembly shown;

[0024] Figure 6 for Figure 5 An enlarged schematic diagram of part A of the clamping assembly shown.

[0025] The meanings of the numbers in the attached diagram are as follows:

[0026] 100. Gas cylinder sealing test fixture;

[0027] 10. Water tank; 11. Water trough;

[0028] 20. Soaking mechanism; 21. Mounting frame; 211. Detection area; 212. Water-avoiding area; 213. Limiting groove; 22. Lifting drive assembly; 221. Fixing frame; 222. Lifting drive component; 23. Clamping assembly; 25. Bottle rack; 251. Bottle tray; 252. Bottle support component; 253. Connecting frame; 254. Slot; 26. Bottle pressing component; 261. Rotating section; 262. Elastic section; 263. Snap-fit ​​section; 264. Contact groove; 27. Locking assembly; 271. Adapter block; 272. Locking tongue; 273. Elastic component; 274. Push rod;

[0029] 40. Testing mechanism; 41. Gas injection drive assembly; 411. Gas injection drive component; 412. Guide rail; 413. Slider; 42. Gas injection assembly; 421. Connecting plate; 422. Mounting plate; 423. Gas inlet;

[0030] 200. Gas cylinder; 201. Gas inlet. Detailed Implementation

[0031] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0037] like Figure 1 As shown, it is the gas tank sealing test fixture 100 of this utility model, used to test the sealing performance of the gas tank 200, such as... Figure 2 As shown, the gas tank 200 is provided with a gas injection port 201.

[0038] like Figure 1As shown, the gas tank sealing test fixture 100 includes: a water tank 10, an immersion mechanism 20, and a test mechanism 40. The water tank 10 has a water trough 11 filled with test liquid. The immersion mechanism 20 includes a mounting frame 21, a lifting drive assembly 22, and a clamping assembly 23. The mounting frame 21 is connected to the lifting drive assembly 22 and has a detection area 211 and a water-avoiding area 212. The lifting drive assembly 22 drives the detection area 211 of the mounting frame 21 to immerse or detach from the test liquid. The clamping assembly 23 is used to clamp the gas tank 200 and is connected to the mounting frame 21, positioned at the detection area 211. The test mechanism 40 includes an air injection drive assembly 41 and an air injection assembly 42. The air injection assembly 42 receives air from a gas source and injects it into the gas tank 200 through an air injection port 201. 41 is connected to the mounting bracket 21 and set in the water-avoiding area 212. The air injection drive component 41 drives the air injection component 42 to engage or disengage with the air injection port 201 of the gas tank 200. The gas tank 200 is clamped on the clamping component 23 of the detection area 211. The lifting drive component 22 is used to immerse the detection area 211 in the test liquid in the water tank 11. At the same time, the air injection component 42 of the testing mechanism 40 injects air into the gas tank 200 through the air injection port 201. If there is a leak in the gas tank 200, the gas will generate bubbles in the test liquid, thereby directly detecting the sealing performance of the gas tank 200. This facilitates a quick judgment on whether the sealing performance of the gas tank 200 meets the requirements. The entire testing process is simple to operate and highly automated, effectively reducing the testing time of the gas tank 200 and achieving the goal of improving the testing efficiency of the gas tank 200.

[0039] The following text, combined with Figures 1 to 6 Further explanation is provided regarding the aforementioned gas tank sealing test fixture 100.

[0040] like Figure 1 As shown, the lifting drive assembly 22 includes a fixed frame 221 and a lifting drive component 222. The fixed frame 221 is connected to the water tank 10, the lifting drive component 222 is connected to the fixed frame 221, and the mounting frame 21 is slidably connected to the fixed frame 221. The lifting drive component 222 is a cylinder.

[0041] To improve the clamping efficiency of gas cylinder 200, such as Figures 3 to 4As shown, the clamping assembly 23 includes a bottle holder 25, a bottle pressing component 26, and a locking assembly 27. The bottle holder 25 has a bottle slot 251. The bottle pressing component 26 is rotatably connected to the bottle holder 25 and rotates around the bottle holder 25 to approach or move away from the bottle slot 251. The locking assembly 27 engages with the bottle pressing component 26 and is installed on the bottle holder 25. The clamping assembly 23, using the combination of the bottle holder 25, the bottle pressing component 26, and the locking assembly 27, can securely clamp the gas canister 200. The bottle slot 251 of the bottle holder 25 is used to place the gas canister 200. When the bottle pressing component 26 rotates around the bottle holder 25 to approach the bottle slot 251, it can press the gas canister 200 tightly. The locking assembly 27 engages with the bottle pressing component 26, further ensuring that the gas canister 200 will not shake or fall off during the test, thereby improving the clamping efficiency of the gas canister 200.

[0042] Specifically, such as Figure 4 As shown, the bottle rack 25 includes a bottle support 252 and a connecting frame 253. There are two bottle support 252s, and each bottle support 252 is provided with a bottle slot 251. The connecting frame 253 connects each bottle support 252 and is rotatably connected to the bottle pressing component 26.

[0043] Among them, such as Figure 3 As shown, in order to improve the installation accuracy and clamping stability of the gas tank 200 in the inspection area 211, the mounting frame 21 is provided with the same number of limiting grooves 213 as the bottle support 252. Each bottle support 252 is respectively set in the limiting groove 213. Through the cooperation between the limiting groove 213 on the mounting frame 21 and the bottle support 252, the bottle support 252 can be accurately installed on the mounting frame 21. At the same time, the limiting groove 213 also plays a role in positioning and fixing the bottle support 252, preventing the bottle support 252 from shifting during the inspection process, thereby achieving the purpose of improving the installation accuracy and clamping stability of the gas tank 200 in the inspection area 211.

[0044] To improve the clamping stability of gas tank 200 during testing, such as Figures 4 to 5 As shown, the bottle support 252 is provided with a slot 254, and the locking assembly 27 is installed in the bottle support 252 and engages with the portion of the bottle pressing part 26 that enters the slot 254. The slot 254 on the bottle support 252 cooperates with the locking assembly 27, so that the locking assembly 27 can engage with the bottle pressing part 26 more stably, further enhancing the fixing effect of the clamping assembly 23 on the gas tank 200. When the bottle pressing part 26 enters the slot 254, the locking assembly 27 can effectively lock the bottle pressing part 26 to prevent it from loosening, thereby improving the clamping stability of the gas tank 200 during the test.

[0045] To improve the efficiency of clamping and disassembling the gas tank 200, such as Figure 6As shown, the locking assembly 27 includes an adapter block 271, a locking tongue 272, and an elastic member 273. The adapter block 271 is slidably disposed within the bottle holder 252 along a first direction. The locking tongue 272 is connected to the adapter block 271 and reciprocates along the first direction to enter or disengage from the slot 254. The elastic member 273 provides elastic force for the locking tongue 272 to enter or disengage from the slot 254. The locking tongue 272 has a first working position and a second working position. When the locking tongue 272 is in the first working position, it enters the slot 254 and forms a groove with the bottom of the slot 254. The locking space of the bottle pressing component 26 allows the locking tongue 272 to disengage from the slot 254 when it is in the second working position. When it is necessary to clamp the gas canister 200, the locking tongue 272 is in the first working position under the elastic force of the elastic element 273, enters the slot 254 and forms a locking space with the bottom of the slot 254, thus locking the bottle pressing component 26. When it is necessary to remove the gas canister 200, the adapter block 271 is pushed so that the locking tongue 272 overcomes the elastic force of the elastic element 273 and enters the second working position, disengaging from the slot 254, thereby improving the clamping and disassembly efficiency of the gas canister 200.

[0046] Furthermore, in order to improve the ease of operation of the locking assembly 27, such as... Figure 6 As shown, the locking assembly 27 also includes a push rod 274, which is connected to the adapter block 271. By pushing the push rod 274, the movement of the adapter block 271 can be controlled more conveniently, thereby controlling the position of the latch 272. Compared with directly operating the adapter block 271, using the push rod 274 is more labor-saving and convenient, thereby improving the ease of operation of the locking assembly 27.

[0047] To improve the clamping stability of gas tank 200, such as Figures 4 to 5 As shown, the bottle carrier groove 251 is V-shaped. The V-shaped bottle carrier groove 251 can better adapt to the shape of the gas tank 200, and play a good role in positioning and supporting the gas tank 200. The two side walls of the V-shaped groove can make close contact with the outer surface of the gas tank 200, preventing the gas tank 200 from rolling or shaking in the bottle carrier groove 251, thereby improving the clamping stability of the gas tank 200.

[0048] To improve the inspection yield of gas cylinder 200, such as Figures 4 to 5As shown, the bottle pressing component 26 includes a rotating section 261, an elastic section 262, and a snap-fit ​​section 263. The rotating section 261, elastic section 262, and snap-fit ​​section 263 are integrally formed by bending a metal rod. The rotating section 261 is rotatably connected to the bottle carrier 25. The elastic section 262 has a contact groove 264, which is positioned corresponding to the bottle carrier groove 251. The snap-fit ​​section 263 snaps into the locking assembly 27. The elastic section 262 makes close contact with the gas tank 200 through the contact groove 264, applying appropriate pressure to the gas tank 200. Simultaneously, the snap-fit ​​section 263 snaps into the locking assembly 27, effectively ensuring the pressing effect of the bottle pressing component 26 on the gas tank 200. The elastic section 262 also prevents the bottle pressing component 26 from applying excessive pressure to the gas tank 200, thus avoiding damage to the gas tank 200 and improving the inspection yield of the gas tank 200.

[0049] like Figure 3 As shown, the air injection drive assembly 41 includes an air injection drive component 411, a guide rail 412, and a slider 413. The guide rail 412 is mounted on the mounting bracket 21. The slider 413 slides along the guide rail 412 and is connected to the air injection assembly 42. The air injection drive component 411 drives the slider 413 to slide along the guide rail 412. The air injection drive component 411 is a cylinder.

[0050] like Figure 3 As shown, the air injection assembly 42 includes a connecting plate 421, a mounting plate 422, and an air inlet 423. The connecting plate 421 is connected to the slider 413 of the air injection drive assembly 41. The mounting plate 422 is connected to the connecting plate 421 and is located within the detection area 211. The air inlet 423 is used to receive an external air source and is connected to the air injection port 201 of the air tank 200. The air inlet 423 can be connected to an air compressor through the cooperation of an air pipe and a solenoid valve, so that the air inlet 423 can input air into the air tank 200 at a predetermined time.

[0051] When using the gas cylinder sealing test fixture 100 provided in this application:

[0052] First, place the gas canister 200 in the bottle slot 251 of the bottle holder 25. Then, rotate the bottle pressing component 26 so that the locking section 263 of the bottle pressing component 26 enters the locking slot 254 of the bottle support component 252. At this time, the locking tongue 272 enters the locking slot 254 under the action of the elastic component 273, forming a locking space with the bottom of the slot 254, locking the bottle pressing component 26 onto the bottle support component 252, thereby firmly clamping the gas canister 200 onto the bottle holder 25.

[0053] Next, the lifting drive assembly 22 drives the mounting bracket 21 to descend, immersing the detection area 211 of the mounting bracket 21 into the test liquid, and the gas tank 200 is also completely immersed in the test liquid. Then, the gas injection drive assembly 41 drives the gas injection assembly 42 to approach the gas tank 200, so that the gas inlet 423 is connected to the gas port of the gas tank 200.

[0054] Observe whether there are bubbles around the gas cylinder 200. If bubbles are generated, it means that the gas cylinder 200 is leaking and the sealing is not up to standard. If no bubbles are generated, it means that the gas cylinder 200 is well sealed and up to standard.

[0055] After the test is completed, the lifting drive assembly 22 drives the mounting bracket 21 to rise, so that the detection area 211 of the mounting bracket 21 is separated from the test liquid. Then, the gas injection drive assembly 41 drives the gas injection assembly 42 away from the gas tank 200, so that the gas inlet 423 is separated from the gas port of the gas tank 200. Finally, the push rod 274 is pushed so that the locking tongue 272 is disengaged from the slot 254, releasing the locking of the pressure bottle component 26. By rotating the pressure bottle component 26, the gas tank 200 can be removed.

[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A gas tank tightness test gauge for testing the tightness of a gas tank provided with a gas injection port, characterized by, The gas tank sealing test fixture includes a water tank, an immersion mechanism, and a test mechanism. The water tank has a water tank filled with test liquid. The immersion mechanism includes a mounting frame, a lifting drive assembly, and a clamping assembly. The mounting frame is connected to the lifting drive assembly and has a detection area and a water-avoiding area. The lifting drive assembly drives the detection area of ​​the mounting frame to immerse or detach from the test liquid. The clamping assembly is used to clamp the gas tank. The clamping assembly is connected to the mounting frame and is located at the detection area. The test mechanism includes an air injection drive assembly and an air injection assembly. The air injection assembly receives air from a gas source and injects it into the gas tank through an air injection port. The air injection drive assembly is connected to the mounting frame and is located at the water-avoiding area. The air injection drive assembly drives the air injection assembly to engage or disengage from the air injection port of the gas tank.

2. The gas tank tightness test gauge according to claim 1, wherein The clamping assembly includes a bottle carrier, a bottle pressing component, and a locking assembly. The bottle carrier has a bottle slot. The bottle pressing component is rotatably connected to the bottle carrier and rotates around the bottle carrier to move closer to or away from the bottle slot. The locking assembly engages with the bottle pressing component and is installed on the bottle carrier.

3. The gas tank sealing test fixture according to claim 2, characterized in that, The bottle carrier includes two bottle support components and a connecting frame. Each bottle support component is provided with a bottle slot. The connecting frame connects each bottle support component and is rotatably connected to the bottle pressing component.

4. The gas tank sealing test fixture according to claim 3, characterized in that, The mounting bracket has the same number of limiting grooves as the bottle holders, and each bottle holder is respectively disposed in each limiting groove.

5. The gas tank sealing test fixture according to claim 3, characterized in that, The bottle holder is provided with a slot, and the locking assembly is installed inside the bottle holder and engages with the portion of the bottle pressing component that enters the slot.

6. The gas tank sealing test fixture according to claim 5, characterized in that, The locking assembly includes an adapter block, a locking tongue, and an elastic element. The adapter block is slidably disposed within the bottle holder in a first direction. The locking tongue is connected to the adapter block and reciprocates in the first direction to enter or disengage from the slot. The elastic element provides elastic force for the locking tongue to enter or disengage from the slot.

7. The gas tank sealing test fixture according to claim 6, characterized in that, The locking assembly also includes a push rod, which is connected to the adapter block.

8. The gas tank sealing test fixture according to claim 2, characterized in that, The bottle pressing component includes a rotating section, an elastic section, and a snap-fit ​​section. The rotating section is rotatably connected to the bottle carrier, the elastic section has a contact groove, and the contact groove is positioned corresponding to the bottle carrier groove. The snap-fit ​​section snaps into the locking assembly.

9. The gas tank sealing test fixture according to claim 1, characterized in that, The lifting drive assembly includes a fixed frame and a lifting drive component. The fixed frame is connected to the water tank, the lifting drive component is connected to the fixed frame, and the mounting frame is slidably connected to the fixed frame.

10. The gas tank sealing test fixture according to claim 1, characterized in that, The gas injection assembly includes a connecting plate, a mounting plate, and a gas inlet. The connecting plate is connected to the slider of the gas injection drive assembly. The mounting plate is connected to the connecting plate and is located within the detection area. The gas inlet is used to receive an external gas source and is connected to the gas injection port of the gas tank.

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