Air tightness detection equipment

Abstract

The utility model relates to the technical field of air tightness detection, in particular to air tightness detection equipment, which comprises an air tightness detection box. A group of air pumps are mounted at the top in the air tightness detection box, the air pumps are outwards communicated with a plurality of inflation pipes, the inflation pipes are communicated with a to-be-detected pipeline, pressure detection meters are arranged at the end parts of the inflation pipes, a box groove is formed in one side wall of the air tightness detection box, and a group of air leakage position detection boxes are mounted in the box groove in a drawing manner; the air leakage position detection box is used for detecting the air leakage position of a pipeline with an air tightness fault, the inflated pipeline moves by a circle along the interior of the air leakage position detection box, and the bubble position is observed, so that the air leakage point of the pipeline is accurately detected, that is, the equipment detects the air tightness of the pipeline through the air pump and the inflation pipe, and the equipment has the advantage of high speed; and then an electric leakage point is accurately searched through the air leakage position detection box, so that high-efficiency air tightness detection of the pipeline is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness detection, in particular to air tightness detection equipment. Background Art

[0002] An airtightness tester is a specialized device used to test the sealing performance of a product or system. It is primarily used to ensure that a product or system can effectively prevent gas or liquid leakage during design, manufacturing, and use, thereby ensuring its functionality and safety.

[0003] The existing patent authorization number is: CN212693178U, which discloses a handheld air tightness tester, including a shell, in which an air pump, a pressure differential sensor, ventilation line 1, ventilation line 2 and a ventilation branch pipe are arranged. The air inlet ends of ventilation line 1 and ventilation line 2 are both connected to the air outlet of the air pump, and the air outlet ends of ventilation line 1 and ventilation line 2 are respectively connected to the two air inlet connectors of the pressure differential sensor. One end of the ventilation branch pipe is connected to ventilation line 2, and the other end of the ventilation branch pipe extends out of the shell for connection to the product to be tested. After analyzing the detector, it can be found that although it can detect whether the pipeline is leaking during the test and use process, it cannot accurately find the specific leak location, and it needs to use other external tools for further detection. In this way, its usability is limited;

[0004] Therefore, in view of the above-mentioned problems, this technical solution proposes an airtightness detection device. Utility Model Content

[0005] The purpose of the present invention is to provide an airtightness detection device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an airtightness testing device, comprising an airtightness testing box; a group of air pumps are installed on the top of the airtightness testing box, the air pumps are connected to multiple air-filled pipes outwardly, the air-filled pipes are connected to the pipeline to be tested, and air is inflated toward the inside thereof to perform airtightness testing, and a pressure testing gauge is provided at the end of the air-filled pipe. After the inflation of the testing pipeline is completed, the air pressure change detected by the pressure testing gauge is used to accurately detect the airtightness of the pipeline. The airtightness testing box is A box slot is provided on the side wall, and a set of leakage position detection boxes are installed in the box slot in a pull-out manner. The leakage position detection box is used to detect the leakage position of the pipeline with air tightness failure. The inflated pipeline moves along the inside of the leakage position detection box for a circle, and the position of the bubble is observed to accurately detect the leakage point of the pipeline. That is, this equipment first detects the air tightness of the pipeline through the air pump and the inflation tube, which has the advantage of fast speed, and then accurately finds the leakage point through the leakage position detection box, thereby realizing efficient air tightness detection of the pipeline.

[0007] Compared with the existing technology, the beneficial effects of the present invention are: by connecting multiple groups of inflation tubes outside the air tightness detection box and connecting them with multiple detection pipelines, the function of simultaneously detecting the air tightness of multiple pipelines is realized; at the same time, a pressure detection gauge is set at the end of the inflation tube, and the air tightness of the pipeline is detected by using the air pressure change, so that the air tightness of the pipeline can be accurately detected;

[0008] By setting a leak position detection box on one side of the air tightness detection box, and then setting a U-shaped detection tube inside the air leak position detection box, and placing the pipeline inside the U-shaped detection tube to use bubbles to detect the leak point, the accuracy of the air tightness detection is further achieved, and the leak position detection box is set on the air tightness detection box, thereby expanding the scope of application of this detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the three-dimensional structure of the air tightness testing equipment.

[0010] Figure 2 This is a schematic diagram of the main internal structure of the air tightness testing equipment.

[0011] Figure 3 This is a schematic diagram of the rear view structure of the air tightness testing equipment.

[0012] Figure 4 It is a side view structural diagram of the air tightness detection equipment.

[0013] Figure 5 for Figure 2 Schematic diagram of the enlarged structure of A in the middle.

[0014] Figure 6 for Figure 1 Schematic diagram of the enlarged structure of B;

[0015] Among them: air tightness detection box 10, air leakage position detection box 11, air pump 12, inflation tube 13, external pipe connector 14, pressure detection gauge 15, pull rod groove 16, pull rod 17, operation button 18, air outlet valve 19, connecting pipe 20, storage rod groove 21, storage rod 22, U-shaped detection tube 23, tube cover 24, pulley 25, slide rod 26, slide rail 27. DETAILED DESCRIPTION

[0016] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0017] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0018] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0019] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0020] See also Figures 1-6 , air tightness testing equipment, including an air tightness testing box 10; a group of air pumps 12 are installed on the top of the air tightness testing box 10, and the air pumps 12 are connected to multiple inflation pipes 13 outwardly. The inflation pipes 13 are connected to the pipeline to be tested and inflate toward the inside thereof to perform air tightness testing. At the same time, a pressure detection gauge 15 is provided at the end of the inflation pipe 13. After the inflation of the detection pipeline is completed, the air pressure changes according to the air pressure detected by the pressure detection gauge 15, thereby accurately detecting the air tightness of the pipeline. A box is opened on one side wall of the air tightness testing box 10 The box slot has a set of leak position detection boxes 11 installed inside in a pull-out manner. The leak position detection box 11 is used to detect the leak position of the pipeline with air tightness failure. The inflated pipeline moves along the inside of the leak position detection box 11 for a circle, and the bubble position is observed to accurately detect the leak point of the pipeline. That is, the device first detects the air tightness of the pipeline through the air pump 12 and the inflation tube 13, which has the advantage of fast speed, and then accurately finds the leakage point through the leak position detection box 11, thereby realizing efficient air tightness detection of the pipeline.

[0021] In the embodiment of the present invention, a pull rod groove 16 is provided on the side wall of the air tightness detection box 10 relative to the air leakage position detection box 11, and a pull rod 17 is installed on the inner edge of the pull rod groove 16. The air tightness detection box 10 can be moved by holding the pull rod 17. At the same time, an operation button 18 is provided on the pull rod 17. The operation button 18 is internally connected to a control module provided inside the pull rod 17. The control module is connected to electrical components such as the air pump 12 and the pressure detection gauge 15, so that the operation of the electrical equipment on the air tightness detection box 10 can be controlled by operating the operation button 18;

[0022] A plurality of slide bars 26 are evenly installed on both side walls and the bottom of the air leakage position detection box 11. A slide rail 27 is provided on the inner wall of the box groove corresponding to the slide bar 26. The slide bar 26 moves along the slide rail 27 to maintain the pull-out connection between the air leakage position detection box 11 and the box groove. At the same time, a pull ring is installed on the top of the outer side wall of the air leakage position detection box 11, which facilitates the control of the movement of the air leakage position detection box 11.

[0023] The outer wall of the leak detection box 11 is provided with a transparent structure. The transparency facilitates the intuitive observation of the leak point of the bubble in the pipeline inside the leak detection box 11. At the same time, when the pipeline is placed inside the leak detection box 11 for detection, both ends of the pipeline must be sealed.

[0024] The airtightness detection box 10 has storage rod grooves 21 on both sides of the top, and storage rods 22 are installed inside the storage rod grooves 21. When the airtightness detection box 10 is not in use, it can be wrapped around the storage rods 22 for storage.

[0025] In one embodiment of the present invention, the top output end of the air pump 12 is connected to a plurality of air outlet valves 19 extending to the outside of the top of the air tightness detection box 10. The ends of the air outlet valves 19 are connected to the inflation tube 13 through the connecting tube 20. The air outlet valves 19 are used to control the flow of gas in the air pump 12. That is, by providing multiple inflation tubes 13, it is convenient to perform pressure detection-type air tightness testing on multiple pipelines at the same time.

[0026] An external pipe connector 14 is installed at the end of the inflation tube 13, and a pressure detection gauge 15 is set on the external pipe connector 14. The external pipe connector 14 is connected to the end of the pipeline to be tested. After a certain amount of air is input into the pipeline, the air intake is stopped. At this time, the pressure detection gauge 15 is used to monitor the air pressure changes in the pipeline in real time, so as to quickly measure the air tightness of the pipeline.

[0027] As a preferred embodiment of the present invention, a set of U-shaped detection tubes 23 are installed inside the leak position detection box 11. The tops of both ends of the U-shaped detection tubes 23 extend to the outside of the top of the leak position detection box 11. Detection liquid (generally clean water) is injected into the U-shaped detection tubes 23. The detection liquid is injected to the middle position of the vertical sections on both sides of the U-shaped detection tubes 23 to ensure that the detection liquid will not overflow after the pipeline to be detected is input into the U-shaped detection tubes 23. By passing the pipeline with sealed ends along one end of the U-shaped detection tube 23 and out of the other end, the gas discharged from the leak point generates bubbles when passing through the detection liquid, so that the leak point can be accurately observed;

[0028] A set of pulleys 25 are provided on the inner wall of the curved corner in the middle of the U-shaped detection tube 23. With the assistance of the pulleys 25, the pipeline can quickly turn and pass through, preventing the pipeline from being squeezed and damaged inside the U-shaped detection tube 23.

[0029] A tube cover 24 is hinged on the outer side of the openings at both ends of the U-shaped detection tube 23. The tube cover 24 is rotated to control the opening and closing of the U-shaped detection tube 23. A sealing ring is provided on the side of the tube cover 24 facing the U-shaped detection tube 23 to maintain the sealing of the cover.

[0030] As a preferred embodiment of the present invention, a magnetic strip is installed on the side wall of the leakage position detection box 11 facing the inner wall of the box slot, and a magnetic metal is installed on the inner wall of the box slot corresponding to the magnetic strip. Through the magnetic effect between the magnetic strip and the magnetic metal, the leakage position detection box 11 is kept stably fitted and stored in the box slot.

[0031] The working principle of the present utility model is: in the idle space of the device, all the above-mentioned driving parts, which refer to power elements, electrical components and adapted power supplies, are connected through wires, and the electrical connections are completed in a working order. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control. When in use, the handheld pull rod 17 controls the movement of the airtightness detection box 10, and then operates the operation button 18 to start the air pump 12. Before that, the external pipe joint 14 at the end of the inflation tube 13 is connected to the pipeline to be tested, and air is injected into the pipeline. After a certain amount is injected, the air intake is stopped, and then the air tightness status of the pipeline is detected by the changes in the pressure detection gauge 15. If a leak occurs, the pipeline is removed from the external pipe joint 14, and both ends are sealed. Then, it enters along one end of the U-shaped detection tube 23 and outputs at the other end. The specific leak position is detected by observing the bubble point.

[0032] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. Air tightness testing equipment, characterized in that, The invention comprises an airtightness detection box (10); a group of air pumps (12) are installed on the top of the airtightness detection box (10); the air pumps (12) are connected to multiple air-inflating pipes (13) outwardly; the air-inflating pipes (13) are connected to the pipeline to be detected; a pressure detection gauge (15) is provided at the end of the air-inflating pipe (13); a box slot is opened on one side wall of the airtightness detection box (10); a group of air leakage position detection boxes (11) are installed in a retractable manner inside the box slot.

2. The airtightness detection equipment according to claim 1, characterized in that: The air tightness detection box (10) is provided with a pull rod groove (16) on the side wall relative to the air leakage position detection box (11), and a pull rod (17) is installed on the inner edge of the pull rod groove (16). An operating button (18) is provided on the pull rod (17), and the operating button (18) is internally connected to a control module arranged inside the pull rod (17).

3. The airtightness detection equipment according to claim 2, characterized in that: A plurality of slide bars (26) are evenly installed on both side walls and the bottom of the air leakage position detection box (11), and a slide rail (27) is provided on the inner wall of the box groove corresponding to the slide bar (26). The slide bar (26) moves along the slide rail (27), and a pull ring is installed on the top of the outer side wall of the air leakage position detection box (11).

4. The airtightness detection equipment according to claim 3, characterized in that: The outer side wall of the air leakage position detection box (11) is provided with a transparent structure.

5. The airtightness detection equipment according to claim 4, characterized in that: The airtightness detection box (10) is provided with receiving rod grooves (21) on both sides of the top, and receiving rods (22) are installed inside the receiving rod grooves (21).

6. The airtightness detection equipment according to claim 5, characterized in that: The top output end of the air pump (12) is connected to a plurality of air outlet valves (19) extending to the outside of the top of the air tightness detection box (10), and the ends of the air outlet valves (19) are connected to the inflation pipe (13) through the connecting pipe (20).

7. The airtightness detection device according to claim 6, characterized in that: An external pipe joint (14) is installed at the end of the inflation pipe (13), the pressure detection gauge (15) is arranged on the external pipe joint (14), and the external pipe joint (14) is communicated with the end of the pipeline to be detected.

8. The airtightness detection device according to claim 7, characterized in that: A group of U-shaped detection tubes (23) are installed inside the gas leakage position detection box (11), the tops of both ends of the U-shaped detection tubes (23) extend to the outside of the top of the gas leakage position detection box (11), and detection liquid is injected into the U-shaped detection tubes (23).

9. The airtightness detection device according to claim 8, characterized in that: A group of pulleys (25) are provided on the inner wall of the arc-shaped corner in the middle of the U-shaped detection tube (23), and tube covers (24) are hingedly connected to the outer sides of the openings at both ends of the U-shaped detection tube (23).

10. The airtightness detection device according to claim 9, characterized in that: A magnetic strip is installed on the side wall of the gas leakage position detection box (11) facing the inner wall of the box slot, and a magnetic metal is installed on the inner wall of the box slot corresponding to the magnetic strip.

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