Air spring bag skin airtightness detection device

Abstract

The utility model provides an air spring bag skin airtightness detection device which comprises a water tank, a pressing device is arranged above the water tank, the pressing device is used for pressing and fixing a bag skin, the pressing device is connected with a moving device, and the moving device is used for pressing the pressed bag skin into the water tank. Automatic operation of air spring bag skin detection is achieved, manual pressing is not needed, the workload and the body burden of workers are relieved, the detection efficiency is greatly improved, meanwhile, impact of explosion on the workers can be prevented, and the personal safety of detection personnel is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of air spring testing technology, and in particular to an air spring bladder air tightness testing device. Background Technology

[0002] After assembly, air spring products require an overall airtightness test to check if their airtightness meets usage requirements. Generally, the airtightness test uses a water test method. The air spring is completely immersed in water, and gas is injected into it at a certain pressure. The airtightness is determined by observing whether air bubbles escape from the surface of the air spring. If the air spring leaks, gas will escape from the leak point and form bubbles in the water.

[0003] The aforementioned water testing method typically involves manually pressing the air spring bladder directly into the water to observe the overflow of air bubbles from its surface. This significantly increases the workload and physical burden on workers, resulting in low testing efficiency. Furthermore, if the bladder has a serious defect (such as a large-area rupture), it will cause a sharp increase in pressure inside the water tank, generating a strong impact force. If the gas being filled is flammable, a leak could easily trigger an explosion. Therefore, manually pressing the bladder into the water for testing carries the risk of severe impact on workers and could even endanger their lives if an explosion occurs. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the above-mentioned technology and provide an air spring bladder air tightness detection device.

[0005] Therefore, this utility model provides an air spring bladder airtightness detection device, including a water tank, a pressing device is provided above the water tank, the pressing device is used to press and fix the bladder, and a moving device is connected to the pressing device, the moving device is used to press the pressed bladder into the water tank.

[0006] Preferably, the moving device includes a cylinder, a mounting plate, a guide rod, and a fixing plate. Support frames are fixedly installed on both sides of the water tank. The fixing plate is fixedly installed on the top of the support frame. The cylinder body of the cylinder is fixedly installed on the mounting plate. The piston rod of the cylinder is fixedly connected to the fixing plate. The guide rod passes through the mounting plate, the fixing plate, the support frame, and the pressing device from top to bottom.

[0007] Preferably, the clamping device includes an electric cylinder, a guide column, a positioning seat, an upper pressing member, and a lower pressing member. The cylinder body of the electric cylinder is fixedly mounted on the mounting plate. The output end of the electric cylinder is fixedly connected to the top end of the guide column. The bottom end of the guide column passes through the fixed plate and the support frame and is fixedly connected to the upper pressing member. The positioning seat is fixedly mounted on the lower pressing member. The guide rod passes through the upper pressing member and the lower pressing member from top to bottom.

[0008] Preferably, the electric cylinder is installed in the middle of the mounting plate, and the pneumatic cylinders are respectively installed at both ends of the mounting plate.

[0009] Preferably, the upper pressure component has an inflation hole, which is connected to an air compressor via an inflation valve.

[0010] Preferably, an explosion-proof door is slidably installed on the top of the water tank.

[0011] Preferably, a connecting block is fixedly installed at the bottom of each explosion-proof door, and a second cylinder is fixedly installed at the top of the water tank, with the piston rod of the second cylinder fixedly connected to the connecting block.

[0012] Preferably, the water tank has an observation window on its side.

[0013] Preferably, a high-level overflow valve is installed on the upper part of the water tank.

[0014] The beneficial effects of this utility model are as follows: This utility model provides an air spring bladder airtightness detection device, which has the following beneficial effects.

[0015] The air spring bladder to be tested is placed on the positioning seat. The electric cylinder is activated, which drives the upper pressure plate to move downward and press the air spring bladder to be tested onto the lower pressure plate. Then, the first cylinder is activated, and the piston rod of the first cylinder retracts, thereby driving the first cylinder and the electric cylinder on the mounting plate to move downward synchronously. This causes the guide rod to move downward as a whole, and moves the air spring bladder pressed on the lower pressure plate downward together to be pressed into the water for testing. This realizes the automated operation of air spring bladder testing, eliminating the need for manual pressing, reducing the workload and physical burden on workers, greatly improving the efficiency of testing, and at the same time preventing the impact of explosion on workers and ensuring the personal safety of testing personnel.

[0016] The installation of explosion-proof doors can further reduce the impact of explosions on testing personnel, ensuring high safety.

[0017] The arrangement of multiple guide pillars and guide rods enhances the stability of the bladder skin as it moves downward, reducing offset and sway. Attached Figure Description

[0018] Figure 1 It is a schematic structural diagram of the air spring bladder airtight detection device in this embodiment;

[0019] Figure 2 It is a front view of the air spring bladder airtight detection device in this embodiment;

[0020] Figure 3 It is a schematic structural diagram of the second cylinder and the connecting block in this embodiment.

[0021] Markings in the figure: 1. Water tank; 2. Bladder; 3. First cylinder; 4. Mounting plate; 5. Guide rod; 6. Fixed plate; 7. Support frame; 8. Electric cylinder; 9. Guide post; 10. Positioning seat; 11. Upper pressing part; 111. Upper pressing plate; 112. Upper conical plate; 12. Lower pressing part; 121. Lower pressing plate; 122. Lower conical plate; 13. Inflation hole; 14. Inflation valve; 15. Explosion-proof door; 16. Connecting block; 17. Second cylinder; 18. Observation window; 19. High water level overflow valve; 20. Base; 21. Piston rod; 22. Connecting disc. Detailed implementation manners

[0022] The following further illustrates the present utility model in conjunction with the accompanying drawings and specific embodiments to facilitate understanding of the content of the present utility model. The methods used in the present utility model are all conventional methods unless otherwise specified; the raw materials and devices used are all conventional commercially available products unless otherwise specified.

[0023] Embodiment:

[0024] As Figures 1-3 shown, the present utility model provides an air spring bladder airtight detection device, including a water tank 1, a pressing device is arranged above the water tank 1, the pressing device is used to press and fix the bladder 2, and a moving device is connected to the pressing device, and the moving device is used to press the pressed bladder 2 into the water tank 1.

[0025] Furthermore, the moving device includes a first cylinder 3, a mounting plate 4, a guide rod 5 and a fixed plate 6, the first cylinder 3 is a stroke cylinder, support frames 7 are fixedly installed on both sides of the water tank 1, the support frames 7 are of a "冂"-shaped structure, the support frames 7 are fixedly installed on the base 20 by bolts, etc., the water tank 1 is placed or fixed on the base 20, the fixed plate 6 is fixedly installed on the top of the support frames 7, the cylinder block of the first cylinder 3 is fixedly installed on the mounting plate 4, the piston rod 21 of the first cylinder 3 is fixedly connected to the fixed plate 6, and the guide rod 5 sequentially penetrates through the mounting plate 4, the fixed plate 6, the support frames 7 and the pressing device from top to bottom.

[0026] Furthermore, the clamping device includes an electric cylinder 8, guide columns 9, a positioning seat 10, an upper pressing member 11, and a lower pressing member 12. The electric cylinder 8 is a heavy-duty electric cylinder capable of withstanding greater loads. The cylinder body of the electric cylinder 8 is fixedly mounted on the mounting plate 4. The output end of the electric cylinder 8 is fixedly connected to the connecting plate 22. Multiple guide columns 9 are fixedly mounted on the bottom of the connecting plate 22. The bottom ends of the guide columns 9 pass through the fixing plate 6 and the support frame 7 and are fixedly connected to the upper pressing member 11. The positioning seat 10 is fixedly mounted on the lower pressing member 12. The guide rod 5 passes through the upper pressing member 11 and the lower pressing member 12 from top to bottom.

[0027] Furthermore, the upper pressing member 11 includes an upper pressing plate 111 and an upper conical plate 112. The upper conical plate 112 is fixedly installed at the bottom of the upper pressing plate 111, and the top of the upper pressing plate 111 is fixedly connected to the guide post 9. The lower pressing member 12 includes a lower pressing plate 121 and a lower conical plate 122. The lower conical plate 122 is fixedly installed at the top of the lower pressing plate 121, and the bottom of the guide rod 5 passes through the lower pressing plate 121 and is fixedly connected to it.

[0028] The contact surfaces of the upper conical plate 112 and the lower conical plate 122 with the bladder 2 are conical in shape, which can provide a good sealing effect and prevent gas leakage or water ingress.

[0029] The upper cone plate 112 and the lower cone plate 122 are detachably connected to the upper pressure plate 111 and the lower pressure plate 121 respectively by bolts, etc., so as to facilitate replacement according to different specifications of the air spring bladder 2.

[0030] Furthermore, there are four guide rods 5, which pass through the four corners of the mounting plate 4, the fixing plate 6, the support frame 7, the upper pressure plate 111 and the lower pressure plate 121 respectively. The upper and lower ends of the guide rods 5 are fixedly installed on the mounting plate 4 and the lower pressure plate 121 respectively by bolts, so that the length of the guide rods 5 is a fixed length.

[0031] Furthermore, the electric cylinder 8 is installed in the middle of the mounting plate 4, and the two air cylinders 3 are respectively installed at both ends of the mounting plate 4, which satisfies the requirements of pressing the bladder skin 2 into the water tank 1.

[0032] Furthermore, the upper pressure member 11 is provided with an air inlet 13, which is connected to an air compressor through an air inlet valve 14, thereby filling the bladder 2 with compressed air.

[0033] Furthermore, an explosion-proof door 15 is slidably installed on the top of the water tank 1.

[0034] Furthermore, a connecting block 16 is fixedly installed at the bottom of each of the explosion-proof doors 15, and a cylinder 17 is fixedly installed at the top of the water tank 1, with the piston rod of the cylinder 17 being fixedly connected to the connecting block 16.

[0035] In this embodiment, two explosion-proof doors 15 are installed on each of the front and rear sides of the water tank 1. When the entire bladder 2 is pressed into the water, the two explosion-proof doors 15 move inward synchronously under the action of two cylinders 17, thereby closing the explosion-proof doors 15; after the test is completed, the two explosion-proof doors 15 move outward synchronously under the action of cylinders 17 and open.

[0036] In this embodiment, the explosion-proof door 15 does not need to cover the entire top of the water tank 1; it provides protection without affecting the testing results.

[0037] Furthermore, the side of the water tank 1 is provided with an observation window 18 to facilitate observation of whether air bubbles overflow from the surface of the capsule 2.

[0038] Furthermore, a high-level overflow valve 19 is installed on the upper part of the water tank 1. The high-level overflow valve 19 is designed to automatically open when the water level in the water tank 1 reaches the preset upper limit, thereby discharging excess water and preventing the water tank 1 from being overpressured or overloaded.

[0039] The working principle is as follows:

[0040] The test capsule 2 is placed on the positioning seat 10. The electric cylinder 8 is activated, causing the upper cone plate 112 to move downward, pressing the test capsule 2 onto the lower cone plate 122. Then, cylinder 3 is activated, and the piston rod 21 of cylinder 3 retracts, thereby causing cylinder 3 and electric cylinder 8 on the mounting plate 4 to move downward synchronously. This causes the guide rod 5 to move downward as a whole, moving the capsule 2 pressed on the lower pressure plate 121 downward together, pressing the capsule 2 into the water. Then, cylinder 17 is activated, and cylinder 17 retracts, closing the explosion-proof door 15 on the top of the water tank 1. Then, the inflation valve 14 is opened, and high-pressure compressed air is injected into the capsule 2 through the inflation hole 13 for testing.

[0041] After the test is completed, cylinder 2 17 extends to open the explosion-proof door 15, and then the piston rod 21 of cylinder 1 3 extends to pull out the entire bladder skin 2 to be tested.

[0042] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", 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.

[0043] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. An air spring bag skin air tightness detection device comprising a water tank (1), characterized in that, A pressing device is provided above the water tank (1). The pressing device is used to press and fix the bladder skin (2). A moving device is connected to the pressing device. The moving device is used to press the pressed bladder skin (2) into the water tank (1). The moving device includes a cylinder (3), a mounting plate (4), a guide rod (5), and a fixing plate (6). Support frames (7) are fixedly installed on both sides of the water tank (1). The fixing plate (6) is fixedly installed on the top of the support frame (7). The cylinder body of the cylinder (3) is fixedly installed on the mounting plate (4). The piston rod of the cylinder (3) is fixedly connected to the fixing plate (6). The guide rod (5) passes through the mounting plate (4), the fixing plate (6), the support frame (7), and the pressing device from top to bottom.

2. The air spring bag skin air tightness detection device of claim 1, wherein, The pressing device includes an electric cylinder (8), a guide column (9), a positioning seat (10), an upper pressing member (11), and a lower pressing member (12). The cylinder body of the electric cylinder (8) is fixedly installed on the mounting plate (4). The output end of the electric cylinder (8) is fixedly connected to the top end of the guide column (9). The bottom end of the guide column (9) passes through the fixing plate (6) and the support frame (7) and is fixedly connected to the upper pressing member (11). The positioning seat (10) is fixedly installed on the lower pressing member (12). The guide rod (5) passes through the upper pressing member (11) and the lower pressing member (12) from top to bottom.

3. An air spring bag skin air tightness detection device according to claim 2, wherein, The electric cylinder (8) is installed in the middle of the mounting plate (4), and the air cylinder (3) is installed at both ends of the mounting plate (4).

4. The air spring bag skin air tightness detection device of claim 2, wherein, The upper pressure component (11) is provided with an air inlet (13), which is connected to the air compressor through an air inlet valve (14).

5. The air spring bag skin air tightness detection device of claim 1, wherein, An explosion-proof door (15) is slidably installed on the top of the water tank (1).

6. An air spring bag skin air tightness detection device according to claim 5, wherein, Each of the explosion-proof doors (15) has a connecting block (16) fixedly installed at its bottom, and a cylinder two (17) is fixedly installed on the upper part of the water tank (1). The piston rod of the cylinder two (17) is fixedly connected to the connecting block (16).

7. The air spring bag skin air tightness detection device of claim 1, wherein, The water tank (1) has an observation window (18) on its side.

8. The air spring bag skin air tightness detection device of claim 1, wherein, A high-level overflow valve (19) is installed on the upper part of the water tank (1).

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