Air tightness detector capable of preventing air leakage

Abstract

The utility model relates to the field of air tightness detectors, in particular to an air leakage prevention air tightness detector which comprises a fixing frame, a first electric telescopic rod is fixedly connected to the top end of the fixing frame, an upper end cover is fixedly connected to the output end of the first electric telescopic rod, and a connecting block is fixedly connected to the output end of a second electric telescopic rod. A rubber elastic block adheres to the interior of the movable sleeve through glue, a second sealing gasket adheres to the interior of the rubber elastic block through sealant, a second pushing assembly is installed in the movable sleeve, and the second pushing assembly is located at the front end of the second sealing gasket and the front end of the rubber elastic block and used for pushing the second sealing gasket and the rubber elastic block to be separated from the movable sleeve. Under the mutual cooperation of the first push block assembly and the second push block assembly, the first sealing gasket and the second sealing gasket can be conveniently detached for replacement, and the sealing gaskets are regularly replaced, so that the whole equipment always keeps a good sealing effect.

Description

Technical Field

[0001] The utility model relates to the field of air tightness detectors, in particular to an air leakage-proof air tightness detector. Background Art

[0002] The traditional method of testing the sealing (also known as leakage) of gas tightness detector (also known as leak detector, airtightness detector, leak detector, dry detector, leak detector) is to use the water or oil immersion visual bubble method. Its equipment is simple and the results are intuitive, but the detection accuracy and efficiency are low, and it is greatly affected by human factors, and it is impossible to achieve automatic quantitative leak detection.

[0003] The existing air tightness tester includes a test tank and an end cover. In order to ensure the accuracy of the test, it is necessary to ensure that there is a good sealing effect between the test tank and the end cover before the test. The existing end cover relies on the sealing gasket inside it to achieve the seal between the test tank and the end cover. However, the existing sealing gasket is mostly glued to the end cover by glue or directly stuck in the sealing groove inside the end cover. Due to the thin thickness of the sealing gasket and the small size of the sealing groove, it is inconvenient for the staff to remove and replace the damaged sealing gasket after a long period of use. Therefore, it is necessary to design an airtightness tester that is leak-proof. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an airtightness detector for preventing air leakage.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an airtightness detector for preventing air leakage, comprising a fixing frame, the top end of the fixing frame is fixedly connected with a first electric telescopic rod, the output end of the first electric telescopic rod is fixedly connected with an upper end cover, the lower end surface of the upper end cover is provided with a sealing groove, a first sealing gasket is arranged inside the sealing groove, the first sealing gasket is adhered to the bottom end of the upper end cover by a sealing adhesive, a first pushing block assembly is installed inside the upper end cover, and the first pushing block assembly is located at the upper end of the first sealing gasket and is used to push the first sealing gasket away from the upper end cover; the inner surface of the fixing frame is provided with a ... the first pushing block assembly is installed inside the upper end cover, the first pushing block assembly is located at the upper end of the first sealing gasket and is used to push the first sealing gasket away from the upper end cover; the inner surface of the fixing frame is provided with a sealing groove, the first sealing gasket is adhered to the bottom end of the upper end cover by a sealing adhesive, the first pushing block assembly is adhered to the bottom end of the upper end cover by a sealing adhesive, the first pushing block assembly is adhered to the bottom end of the upper end cover The bottom end of the part is fixedly connected with a detection tank, and the detection tank is located at the lower end of the upper end cover. The interior of the fixed frame is fixedly connected with a second electric telescopic rod through a fixed block, and the output end of the second electric telescopic rod is fixedly connected with a connecting block. The front end of the connecting block is fixedly connected with a moving sleeve, and the interior of the moving sleeve is bonded with a rubber elastic block by glue, and the interior of the rubber elastic block is bonded with a second sealing gasket by sealing glue. A second pushing assembly is installed in the interior of the moving sleeve, and the second pushing assembly is located at the front ends of the second sealing gasket and the rubber elastic block, and is used to push the second sealing gasket and the rubber elastic block out of the moving sleeve.

[0006] Furthermore, a gas detector is fixedly connected to the circumferential surface of the detection tank, a detection head of the gas detector extends backward into the detection tank, and a sealing gasket is used to seal the detection head and the detection tank.

[0007] Furthermore, the first push block assembly includes a movable plate, a first spring, a first sliding rod and a first push block, a sliding groove is opened inside the upper end cover, the sliding groove is located at the upper end of the sealing groove, and the first push block is slidably connected inside the sliding groove, the upper end of the first push block is fixedly connected to a plurality of first sliding rods, the plurality of first sliding rods all penetrate the upper end cover upward and are slidably connected to the upper end cover, the circumferential surface of the upper end cover is slidably connected to the movable plate, the movable plate is fixedly installed on the top ends of the plurality of first sliding rods, the circumferential surfaces of the plurality of first sliding rods are all sleeved with a first spring, one end of the first spring is fixedly connected to the movable plate, and the other end of the first spring is fixedly connected to the upper end cover.

[0008] Furthermore, the second pushing assembly includes a second sliding rod, a support frame, a second spring and a second pushing block. The circumferential surface of the movable sleeve is provided with a sliding hole, and the second pushing block is slidably connected inside the sliding hole. The front end of the second pushing block is fixedly connected to the second sliding rod, and the circumferential surface of the movable sleeve is fixedly connected to the support frame. The second sliding rod penetrates the support frame and is slidably connected to the support frame. The circumferential surface of the second sliding rod is provided with a second spring, one end of the second spring is fixedly connected to the support frame, and the other end of the second spring is fixedly connected to the second pushing block.

[0009] Furthermore, a fixing bar is fixedly connected to the inner wall of the fixing frame, and an indicator rod is fixedly connected to the rear end of the connecting block, and the indicator rod points to the fixing bar.

[0010] Furthermore, a stopper is fixedly connected to the front end of the second sliding rod.

[0011] The utility model has the following beneficial effects:

[0012] 1. Compared with the prior art, this air-leakage-proof air-tightness detector can improve the sealing effect between the upper end cover and the detection tank through the mutual cooperation of the first sealing gasket, the second sealing gasket and the rubber elastic block. With the double cooperation of the two sealing gaskets, air leakage can be avoided during the detection process, thereby improving the accuracy of the detection of the entire equipment.

[0013] 2. Compared with the prior art, this air leakage-proof air tightness detector, under the action of the first push block assembly, facilitates the staff to provide force to the first sealing gasket to separate from the upper end cover, so that the first sealing gasket gradually protrudes downward at the point where it contacts the first push block assembly, and gradually separates from the upper end cover, so that the subsequent staff can remove and replace the first sealing gasket.

[0014] 3. Compared with the prior art, the air leakage-proof air tightness detector facilitates the staff to provide force to the second sealing gasket and the rubber elastic block to separate from the movable sleeve under the action of the second pushing assembly, so that the end of the second sealing gasket and the rubber elastic block that contacts the second pushing assembly gradually protrudes until a certain gap exists between the rubber elastic block and the movable sleeve, so that the staff can manually remove and replace the second sealing gasket and the rubber elastic block. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the main view of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model from the left side;

[0017] Figure 3 It is a structural schematic diagram of the utility model after partial section from the left side;

[0018] Figure 4 for Figure 3 A is a schematic diagram of the enlarged structure of the middle part;

[0019] Figure 5 for Figure 3 Schematic diagram of the enlarged structure of B.

[0020] Legend:

[0021] 1. Fixed frame; 2. First electric telescopic rod; 3. Upper end cover; 4. Detection tank; 5. Gas detector; 6. Moving sleeve; 7. Second electric telescopic rod; 8. Fixed bar; 9. Moving plate; 10. First spring; 11. First slide bar; 12. First push block; 13. Sealing groove; 14. Rubber elastic block; 15. Second sealing pad; 16. Second slide bar; 17. Second spring; 18. Second push block; 19. First sealing pad; 20. Indicator rod; 21. Connecting block; 22. Support frame. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0023] Reference Figure 1-5The utility model provides an airtightness detector for preventing air leakage, comprising a fixing frame 1, a first electric telescopic rod 2 is fixedly connected to the top of the fixing frame 1, an upper end cover 3 is fixedly connected to the output end of the first electric telescopic rod 2, a sealing groove 13 is provided on the lower end surface of the upper end cover 3, a first sealing gasket 19 is arranged inside the sealing groove 13, the first sealing gasket 19 is adhered to the bottom end of the upper end cover 3 by sealing glue, a first pushing block assembly is installed inside the upper end cover 3, and the first pushing block assembly is located at the upper end of the first sealing gasket 19, and is used to push the first sealing gasket 19 away from the upper end cover 3; a detection tank is fixedly connected to the bottom end of the fixing frame 1 4. The detection tank 4 is located at the lower end of the upper end cover 3. The interior of the fixed frame 1 is fixedly connected to the second electric telescopic rod 7 through a fixed block. The output end of the second electric telescopic rod 7 is fixedly connected to a connecting block 21. The front end of the connecting block 21 is fixedly connected to a moving sleeve 6. The interior of the moving sleeve 6 is adhered to a rubber elastic block 14 by glue. The interior of the rubber elastic block 14 is adhered to a second sealing gasket 15 by sealing glue. The interior of the moving sleeve 6 is installed with a second pushing assembly, and the second pushing assembly is located at the front ends of the second sealing gasket 15 and the rubber elastic block 14, and is used to push the second sealing gasket 15 and the rubber elastic block 14 out of the moving sleeve 6.

[0024] During operation, the utility model can improve the mutual cooperation of the first sealing gasket 19, the second sealing gasket 15 and the rubber elastic block 14, so that the sealing gasket 19 and the second sealing gasket 15 between the upper end cover 3 and the detection tank 4 can be disassembled and replaced. By regularly replacing the sealing gasket, the overall equipment always maintains a good sealing effect.

[0025] Further, if Figure 3 As shown, a gas detector 5 is fixedly connected to the circumferential surface of the detection tank 4, and the detection head of the gas detector 5 extends backward into the detection tank 4, and a sealing gasket is used to seal the detection head and the detection tank 4. The gas detector 5 cooperates with the detection head to detect the gas content inside the detection tank 4, so as to determine whether the detected item has a gas leak.

[0026] Further, if Figure 4 As shown, the first push block assembly includes a movable plate 9, a first spring 10, a first slide rod 11 and a first push block 12. A sliding groove is opened inside the upper end cover 3, the sliding groove is located at the upper end of the sealing groove 13, and the first push block 12 is slidably connected inside the sliding groove. The upper end of the first push block 12 is fixedly connected with multiple first slide rods 11, and the multiple first slide rods 11 all penetrate the upper end cover 3 upward and are slidably connected to the upper end cover 3. The circumferential surface of the upper end cover 3 is slidably connected with the movable plate 9, and the movable plate 9 is fixedly installed on the top of the multiple first slide rods 11. The circumferential surfaces of the multiple first slide rods 11 are all sleeved with first springs 10, one end of the first spring 10 is fixedly connected to the movable plate 9, and the other end of the first spring 10 is fixedly connected to the upper end cover 3.

[0027] During operation, the movable plate 9 is pressed downward to drive the first slide rod 11 and the first push block 12 to move downward, and at the same time the first spring 10 is compressed. As the first push block 12 moves downward, the first sealing gasket 19 can be pushed downward, so that the first sealing gasket 19 is gradually separated from the upper end cover 3, so that subsequent staff can remove and replace the first sealing gasket 19.

[0028] Further, if Figure 4 As shown, the second pushing assembly includes a second slide rod 16, a support frame 22, a second spring 17 and a second push block 18. A sliding hole is opened on the circumferential surface of the movable sleeve 6, and the second push block 18 is slidably connected inside the sliding hole. The front end of the second push block 18 is fixedly connected to the second slide rod 16, and the circumferential surface of the movable sleeve 6 is fixedly connected to the support frame 22. The second slide rod 16 penetrates the support frame 22 and is slidably connected to the support frame 22. The circumferential surface of the second slide rod 16 is sleeved with a second spring 17, one end of the second spring 17 is fixedly connected to the support frame 22, and the other end of the second spring 17 is fixedly connected to the second push block 18.

[0029] During operation, the second slide bar 16 is pushed backward, driving the second push block 18 to move backward, and at the same time the second spring 17 is stretched. As the second push block 18 gradually moves backward, the rubber elastic block 14 and the second sealing gasket 15 are close to one side of the second push block 18 and gradually move in the direction of separating from the movable sleeve 6 until there is a certain gap between the end of the rubber elastic block 14 that contacts the second push block 18 and the movable sleeve 6. It is convenient for the staff to manually operate, reach into the space between the rubber elastic block 14 and the movable sleeve 6 and into the second sealing gasket 15, remove the rubber elastic block 14 and the second sealing gasket 15 and replace them.

[0030] Further, if Figure 5 As shown, the inner wall of the fixing frame 1 is fixedly connected with a fixing bar 8, and the rear end of the connecting block 21 is fixedly connected with an indicating rod 20, and the indicating rod 20 points to the fixing bar 8. During operation, when the indicating rod 20 points to the fixing bar 8, the second sealing gasket 15 moves with the moving sleeve 6 to the contact end between the upper end cover 3 and the detection tank 4, so as to further seal the upper end cover 3 and the detection tank 4 by using the second sealing gasket 15.

[0031] Further, if Figure 4 As shown, a stopper is fixedly connected to the front end of the second slide bar 16. During operation, under the action of the stopper, the second slide bar 16 can be prevented from being separated from the support frame 22.

[0032] The working principle of this utility model:

[0033] When in use, the object to be inspected, such as a packaging bag, is placed into the inspection tank 4, and then the first electric telescopic rod 2 is controlled to drive the upper end cover 3 to move downward until the upper end cover 3 is tightly pressed against the upper end of the inspection tank 4, and under the action of the first sealing gasket 19, the upper end cover 3 and the inspection tank 4 can be sealed and matched, and then the second electric telescopic rod 7 is controlled to drive the connecting block 21 to move upward, and drive the second sealing gasket 15 and the rubber elastic block 14 to move upward, until the second sealing gasket 15 is tightly fitted with the upper end cover 3 and the inspection tank 4, and then the second electric telescopic rod 7 is closed. At this time, under the mutual cooperation of the first sealing gasket 19 and the second sealing gasket 15, air leakage can be avoided during the inspection process, so as to facilitate the subsequent accurate sealing inspection of the object;

[0034] When the inspection is completed, the first electric telescopic rod 2 is controlled in reverse to drive the upper end cover 3 to move up and reset. When the first sealing gasket 19 is damaged, the first pushing block assembly is controlled to operate so as to remove and replace the damaged first sealing gasket 19. When the second sealing gasket 15 has a problem, the second electric telescopic rod 7 is controlled to extend to drive the movable sleeve 6, the rubber elastic block 14 and the second sealing gasket 15 to move up and away from the inspection tank 4, and then the second pushing assembly is controlled to operate so as to remove and replace the second sealing gasket 15 and the rubber elastic block 14.

[0035] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An airtightness detector for preventing air leakage, comprising a fixing frame (1), characterized in that: The top end of the fixing frame (1) is fixedly connected to a first electric telescopic rod (2), the output end of the first electric telescopic rod (2) is fixedly connected to an upper end cover (3), a sealing groove (13) is provided on the lower end surface of the upper end cover (3), a first sealing gasket (19) is arranged inside the sealing groove (13), the first sealing gasket (19) is adhered to the bottom end of the upper end cover (3) by means of sealing glue, a first pushing block assembly is installed inside the upper end cover (3), and the first pushing block assembly is located at the upper end of the first sealing gasket (19) and is used to push the first sealing gasket (19) away from the upper end cover (3); the inner bottom end of the fixing frame (1) is fixedly connected to a detection tank (4), and the detection tank (4) is located at the upper end cover ( 3), the interior of the fixed frame (1) is fixedly connected to a second electric telescopic rod (7) via a fixed block, the output end of the second electric telescopic rod (7) is fixedly connected to a connecting block (21), the front end of the connecting block (21) is fixedly connected to a moving sleeve (6), the interior of the moving sleeve (6) is bonded to a rubber elastic block (14) via glue, the interior of the rubber elastic block (14) is bonded to a second sealing gasket (15) via sealing glue, the interior of the moving sleeve (6) is installed with a second pushing assembly, and the second pushing assembly is located at the front ends of the second sealing gasket (15) and the rubber elastic block (14), and is used to push the second sealing gasket (15) and the rubber elastic block (14) away from the moving sleeve (6).

2. The airtightness detector for preventing air leakage according to claim 1, characterized in that: A gas detector (5) is fixedly connected to the circumferential surface of the detection tank (4); a detection head of the gas detector (5) extends backward into the detection tank (4), and a sealing gasket is used to seal the detection head and the detection tank (4).

3. The airtightness detector for preventing air leakage according to claim 1, characterized in that: The first push block assembly comprises a movable plate (9), a first spring (10), a first sliding rod (11) and a first push block (12). A sliding groove is provided inside the upper end cover (3), the sliding groove is located at the upper end of the sealing groove, and the first push block (12) is slidably connected inside the sliding groove. The upper end of the first push block (12) is fixedly connected with a plurality of first sliding rods (11), and the plurality of first sliding rods (11) all penetrate the upper end cover (3) upward and are slidably connected to the upper end cover (3). The circumferential surface of the upper end cover (3) is slidably connected with the movable plate (9), and the movable plate (9) is fixedly mounted on the top ends of the plurality of first sliding rods (11). The circumferential surfaces of the plurality of first sliding rods (11) are all sleeved with the first spring (10), one end of the first spring (10) is fixedly connected to the movable plate (9), and the other end of the first spring (10) is fixedly connected to the upper end cover (3).

4. The airtightness detector for preventing air leakage according to claim 1, characterized in that: The second push assembly comprises a second slide bar (16), a support frame (22), a second spring (17) and a second push block (18); a sliding hole is provided on the circumferential surface of the movable sleeve (6); a second push block (18) is slidably connected inside the sliding hole; a front end of the second push block (18) is fixedly connected to the second slide bar (16); a circumferential surface of the movable sleeve (6) is fixedly connected to the support frame (22); the second slide bar (16) passes through the support frame (22) and is slidably connected to the support frame (22); a second spring (17) is sleeved on the circumferential surface of the second slide bar (16); one end of the second spring (17) is fixedly connected to the support frame (22); and the other end of the second spring (17) is fixedly connected to the second push block (18).

5. The airtightness detector for preventing air leakage according to claim 1, characterized in that: A fixing bar (8) is fixedly connected to the inner wall of the fixing frame (1), and an indicator rod (20) is fixedly connected to the rear end of the connecting block (21), and the indicator rod (20) points to the fixing bar (8).

6. The airtightness detector for preventing air leakage according to claim 4, characterized in that: A stopper is fixedly connected to the front end of the second sliding rod (16).

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