Detection limiting device adopting submerged bubble method

Abstract

The utility model relates to the technical field of submerged bubble method detection, in particular to a limiting device for submerged bubble method detection. The submerged bubble method detection limiting device comprises a suction cup fixator, the suction cup fixator is connected with a height adjusting sleeve through an inclined supporting rod, the height adjusting sleeve is provided with a height adjusting rod with a clamping groove, the height adjusting rod with the clamping groove is connected with a first-stage fixing clamp through a first-stage supporting frame, a limiting groove is formed in the lower portion of the first-stage fixing clamp, and the first-stage fixing clamp is connected with a second-stage fixing clamp through a second-stage supporting frame. A limiting piece is arranged above the first-stage supporting frame and located in the limiting groove. According to the device, the whole device is fixed at the bottom of a test tank through the suction cup fixer, the gas-containing plastic package product is fixed on the independent portable fixing clamp through the at least one fixing clamp, and a plurality of samples can be detected at the same time; and the problem of inaccurate observation caused by mutual blocking of the samples is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sub - liquid bubble method detection, in particular to a limit device for sub - liquid bubble method detection. Background Technique

[0002] The sub - liquid bubble method refers to placing an air - containing plastic - wrapped product in water to check its sealing condition. The following are the basic steps of this method: Prepare the air - containing plastic - wrapped product: Ensure that there is air inside the product; Slowly immerse the air - containing plastic - wrapped product in water. By evacuating the test tank, a certain pressure difference is formed between the inside and outside of the packaging system. If there is a leak, bubbles will appear in the test tank, thereby detecting the leak of the packaging system and determining the location where the leak occurs. If the air - containing plastic - wrapped product has a small hole, small bubbles may be seen escaping from these holes.

[0003] During the actual detection process, the air - containing plastic - wrapped product to be tested needs to be placed in the test tank. Generally, the air - containing plastic - wrapped product is directly immersed in the water in the test tank for testing. However, during the test, the air - containing plastic - wrapped product floats to the vicinity of the water surface, making it impossible to observe the leak location, and even small leaks may be ignored; In addition, if the method of tying with a rope is used to solve the problem of the floating of the air - containing plastic - wrapped product, there is also the problem of insecure fixation. Moreover, when multiple samples are detected simultaneously, the samples block and entangle each other, and the process of sample replacement is cumbersome, which not only affects the accuracy of observation but also affects the test efficiency. Content of the Utility Model

[0004] According to the above deficiencies in the prior art, the purpose of the utility model is to provide a limit device for sub - liquid bubble method detection. The whole device is fixed at the bottom of the test tank through a sucker fixator. At least one fixing clip is used to fix the air - containing plastic - wrapped product on an independent and portable fixing clip. Multiple samples can be detected simultaneously, avoiding the problem of inaccurate observation caused by mutual blocking between samples; The independent and portable fixing clip is convenient to disassemble and firmly holds the sample, improving the stability and test efficiency of the test; Through the cooperation of a height - adjusting sleeve and a height - adjusting rod with a card slot, the height of the fixing clip can be adjusted, facilitating the testing of air - containing plastic - wrapped products of different specifications and improving the versatility of the test.

[0005] The utility model is realized by adopting the following technical solutions:

[0006] The limit device for sub - liquid bubble method detection includes a sucker fixator. The sucker fixator is connected to a height - adjusting sleeve through an inclined support rod. A height - adjusting rod with a card slot is arranged on the height - adjusting sleeve. The height - adjusting rod with a card slot is connected with a first - level fixing clip through a first - level support frame. A limit groove is arranged below the first - level fixing clip, and a limit piece is arranged above the first - level support frame. The limit piece is located inside the limit groove.

[0007] Preferably, three sucker fixators are used for fixing the whole device. The sucker fixator is also provided with a sucker and a sucker pressure wrench. By pulling the sucker pressure wrench, the sucker can be more firmly adsorbed on the bottom of the test tank.

[0008] The height adjustment sleeve is provided with a slot blocking piece. The height adjustment rod with a slot passes through the height adjustment sleeve and its position is fixed by the slot blocking piece.

[0009] The slot blocking piece is placed on the height adjustment sleeve. There is an easy-pull handle outside the sleeve, and a spring is provided on the upper part inside the sleeve. In the natural state, it pops out to block the slot to fix the height adjustment rod with a slot; when adjusting the height, pull out the easy-pull handle, and the height adjustment rod with a slot can move.

[0010] The first-level fixing clip is provided with a fixed clamping block and a driven clamping block, and a driven nut is provided below the driven clamping block.

[0011] A threaded screw rod is provided inside the first-level fixing clip. A rotating head is provided on the threaded screw rod, and the threaded screw rod passes through the driven nut.

[0012] The threaded screw rod drives the driven nut to move axially along the threaded screw rod by rotation.

[0013] The height adjustment sleeve is provided with a slot blocking piece. The upper end is a height adjustment rod with a slot and a top bracket. The height adjustment rod can pass through the height adjustment sleeve and its position is fixed by the slot blocking piece to maintain the height. The height adjustment sleeve, the slot blocking piece, and the height adjustment rod with a slot and a top bracket together form the middle height adjuster.

[0014] The air-containing plastic package product is placed between the fixed clamping block and the driven clamping block for liquid bubble method detection.

[0015] The height adjustment rod with a slot is connected to the second-level fixing clip through a second-level support frame. The structure of the second-level fixing clip is the same as that of the first-level fixing clip. By rotating the rotating head, the driven nut is driven to move left and right, and then the distance between the fixed clamping block and the driven clamping block is controlled to realize the clamping and loosening of the air-containing plastic package product.

[0016] The fixing clips can be set to 4 - 6. The fixing clips can rotate along the limiting piece on the support frame. The fixing clips can be used alone or in combination to fix one or more air-containing plastic package products at the same time. The sucker fixator is provided with a sucker. The sucker is provided with a hemispherical connector. The hemispherical connector is provided with a limiting hole. A rotating shaft is provided on the oblique support rod, and the rotating shaft is arranged in the limiting hole and can rotate around the limiting hole.

[0017] The primary support frame is provided with a fixing pin. The primary support frame is divided into upper and lower parts. The inner diameter of the upper part is larger than the outer diameter of the lower part. During use, they are connected by the fixing pin. The suction cup holder is provided with a suction cup pressure wrench.

[0018] When it is necessary to replace and test the gas-containing plastic package product, the fixing pin can be pulled out, the upper part of the support frame and the fixing clip can be removed. After clamping the gas-containing plastic package product, then the upper part of the support frame is sleeved onto the lower part of the support frame, and the fixing pin is inserted for fixation. Water is added to submerge the gas-containing plastic package product, and the test tank is evacuated, then the test can be carried out again.

[0019] The working principle of the present utility model is as follows:

[0020] Take out the gas-containing plastic package product to be tested, rotate the primary fixing clip and the secondary fixing clip to make them on the same horizontal line. Then rotate the rotating head to fix the gas-containing plastic package product on the primary fixing clip and the secondary fixing clip; adjust the height of the height adjustment sleeve. Then place the whole device in the test tank, add water to submerge the gas-containing plastic package product, evacuate the test tank, and observe whether there is any bubbling. Among them, preferably 3 suction cup holders are used for fixing the whole device. The suction cup holder is also provided with a suction cup and a suction cup pressure wrench. Pulling the suction cup pressure wrench can make the suction cup suck more firmly on the bottom of the test tank. The height adjustment sleeve is provided with a slot blocking piece. The upper end is a height adjustment rod with a slot and a top bracket. The height adjustment rod can pass through the height adjustment sleeve and its position can be fixed by the slot blocking piece to maintain the height.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] By using the liquid-submerged bubble method detection limiting device of the present utility model, the whole device is fixed on the bottom of the test tank through the suction cup holder, and the gas-containing plastic package product is fixed on the independent and portable fixing clip by at least one fixing clip. Multiple specifications of samples can be detected simultaneously, avoiding the problem of inaccurate observation caused by mutual blocking between samples; the independent and portable fixing clip is convenient to disassemble and firmly clamps the sample, improving the stability and testing efficiency of the test; through the cooperation of the height adjustment sleeve, the slot blocking piece and the height adjustment rod with a slot, the height of the fixing clip can be adjusted, facilitating the testing of gas-containing plastic package products of different specifications and improving the versatility of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of the liquid-submerged bubble method detection limiting device of the present utility model;

[0024] Figure 2 It is a schematic structural diagram of the primary support frame of the present utility model;

[0025] Figure 3 It is a cross-sectional view of the primary support frame of the present utility model;

[0026] Figure 4 Structural schematic diagram of the first - stage fixing clip of the present utility model during use;

[0027] Figure 5 Structural schematic diagram of the sucker fixator of the present utility model;

[0028] Figure 6 Structural schematic diagram of the clamping - groove blocking piece of the present utility model during operation;

[0029] In the figure: 1. Sucker fixator; 2. Height - adjusting sleeve; 3. Clamping - groove blocking piece; 4. Height - adjusting rod with a clamping groove; 5. First - stage support frame; 6. First - stage fixing clip; 7. Oblique support rod; 8. Second - stage support frame; 9. Second - stage fixing clip; 10. Limit groove; 11. Limit piece; 12. Rotating head; 13. Rotating shaft; 14. Fixed clamping block; 15. Driven clamping block; 16. Threaded screw; 17. Driven nut; 18. Limit hole; 19. Gas - containing plastic - wrapped product; 20. Sucker; 21. Hemispherical connector; 22. Sucker pressure wrench; 23. Fixed pin. Detailed implementation manners

[0030] In order to make the purpose and technical solutions of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0031] Embodiment 1

[0032] As Figure 1 shown, the liquid - submerged bubble method detection limit device includes a sucker fixator 1. The sucker fixator 1 is connected to a height - adjusting sleeve 2 through an oblique support rod 7. The height - adjusting sleeve 2 is provided with a height - adjusting rod 4 with a clamping groove. The height - adjusting rod 4 with a clamping groove is connected to a first - stage fixing clip 6 through a first - stage support frame 5. As Figures 2 - 5As shown in the figure, a limiting groove 10 is provided below the first-level fixing clip 6, and a limiting piece 11 is provided above the first-level support frame 5. The limiting piece 11 is located inside the limiting groove 10. A clamping groove blocking piece 3 is provided on the height adjusting sleeve 2. The height adjusting rod 4 with a clamping groove passes through the height adjusting sleeve and its position is fixed by the clamping groove blocking piece 3. A clamping groove blocking piece 3 is provided on the height adjusting sleeve 2, and the upper end is the height adjusting rod 4 with a clamping groove. The height adjusting rod 4 with a clamping groove can pass through the height adjusting sleeve 2 and its position is fixed by the clamping groove blocking piece 3 to maintain the height. A fixed clamping block 14 and a driven clamping block 15 are provided on the first-level fixing clip 6, and a driven nut 17 is provided below the driven clamping block 15. A threaded screw rod 16 is provided inside the first-level fixing clip 6, a rotating head 12 is provided on the threaded screw rod 16, and the threaded screw rod 16 passes through the driven nut 17. The threaded screw rod 16 drives the driven nut 17 to move axially along the threaded screw rod 16 by rotation. The gas-containing plastic package product 19 is placed between the fixed clamping block 14 and the driven clamping block 15 for detection by the submerged bubble method. The height adjusting rod 4 with a clamping groove is connected to the second-level fixing clip 9 through the second-level support frame 8, and the structure of the second-level fixing clip 9 is the same as that of the first-level fixing clip 6. A suction cup 20 is provided on the suction cup holder 1, a hemispherical connector 21 is provided on the suction cup 20, a limiting hole 18 is provided on the hemispherical connector 21, a rotating shaft 13 is provided on the inclined support rod 7, and the rotating shaft 13 is arranged in the limiting hole 18 and the rotating shaft 13 can rotate around the limiting hole 18.

[0033] For the above-mentioned submerged bubble method detection limiting device, during operation, it includes the following steps:

[0034] (1) For the large-sized gas-containing plastic package product 19, rotate the first-level fixing clip 6 and the second-level fixing clip 9 to make them on the same horizontal line, and then rotate the rotating head 12 to fix the gas-containing plastic package product 19 on the first-level fixing clip 6 and the second-level fixing clip 9; for the small-sized gas-containing plastic package product 19, it can be fixed on the first-level fixing clip 6 and the second-level fixing clip 9 respectively; (2) Adjust the height of the height adjusting sleeve, and then place the whole device in the test tank, add water to submerge the gas-containing plastic package product 19, and evacuate the test tank to observe whether there is bubbling.

Claims

1. A submerged bubble method detection limit device, characterized in that: The invention comprises a suction cup holder (1), wherein the suction cup holder (1) is connected to a height adjustment sleeve (2) via an oblique support rod (7), a height adjustment rod (4) with a slot is provided on the height adjustment sleeve (2), the height adjustment rod (4) with the slot is connected to a primary fixing clamp (6) via a primary support frame (5), a limiting groove (10) is provided below the primary fixing clamp (6), a limiting plate (11) is provided above the primary support frame (5), and the limiting plate (11) is located inside the limiting groove (10).

2. The underwater bubble method detection limit device according to claim 1, characterized in that: The height adjustment sleeve (2) is provided with a slot blocking piece (3), and a height adjustment rod (4) with a slot passes through the height adjustment sleeve (2) and its position is fixed by the slot blocking piece (3).

3. The underwater bubble method detection limit device according to claim 1, characterized in that: The primary fixing clamp (6) is provided with a fixing clamping block (14) and a driven clamping block (15), and a driven nut (17) is provided below the driven clamping block (15).

4. The underwater bubble method detection limit device according to claim 3, characterized in that: The primary fixing clamp (6) is provided with a threaded screw (16) inside, the threaded screw (16) is provided with a rotating head (12), and the threaded screw (16) passes through a driven nut (17).

5. The underwater bubble method detection limit device according to claim 4, characterized in that: The threaded screw (16) drives the driven nut (17) to move along the axial direction of the threaded screw (16) by rotating.

6. The underwater bubble method detection limit device according to claim 3, characterized in that: A gas-containing plastic-wrapped product (19) is placed between the fixed clamping block (14) and the driven clamping block (15) for underwater bubble method detection.

7. The underwater bubble method detection limit device according to claim 3, characterized in that: The height adjustment rod (4) with a slot is connected to a secondary fixing clamp (9) via a secondary support frame (8), and the structure of the secondary fixing clamp (9) is the same as that of the primary fixing clamp (6).

8. The underwater bubble method detection limit device according to claim 1, characterized in that: The suction cup holder (1) is provided with a suction cup (20), the suction cup (20) is provided with a hemispherical connector (21), the hemispherical connector (21) is provided with a limiting hole (18), the oblique support rod (7) is provided with a rotating shaft (13), the rotating shaft (13) is arranged in the limiting hole (18), and the rotating shaft (13) can rotate around the limiting hole (18).

9. The underwater bubble method detection limit device according to claim 1, characterized in that: The primary support frame (5) is provided with a fixing pin (23), and the primary support frame (5) is divided into an upper and a lower part, the inner diameter of the upper part is larger than the outer diameter of the lower part, and they are connected by the fixing pin (23) when in use. The suction cup holder (1) is provided with a suction cup pressure wrench (22).

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