A leak detector

Abstract

The application provides a leak detection machine, which comprises a detection mechanism and a turnover mechanism. The detection mechanism comprises a power supply and a first electrode assembly, and the first electrode assembly comprises a first emitter and a first receiver. One end of the first emitter is electrically connected with the positive electrode of the power supply, and the other end of the first emitter is used for being detachably abutted with a container to be detected. One end of the first receiver is electrically connected with the negative electrode of the power supply. The other end of the first receiver is used for being detachably abutted with the container to be detected, and the first electrode assembly is used for abutting with the container to be detected to form a closed circuit. The detection mechanism is provided with two detection mechanisms, which are used for sequentially detecting different parts of the same container to be detected. The turnover mechanism is arranged between the two detection mechanisms, and is used for turning over the container to be detected after being detected by one detection mechanism and conveying the container to the next detection mechanism. Compared with the prior art, the leak detection machine has the function of detecting different key parts of the container to be detected to judge whether the container to be detected leaks liquid.

Description

Technical Field

[0001] This application relates to the field of container leak detection, and in particular to a leak detection machine. Background Technology

[0002] In industries such as pharmaceuticals and food, the sealing performance of packaging containers is crucial. Good container sealing ensures product quality, prevents the entry of external impurities and microorganisms, and thus guarantees product safety and stability. With the continuous development of these industries, the requirements for the accuracy and reliability of container sealing testing are increasing, prompting continuous progress and improvement of related testing technologies. Currently, several methods are commonly used in the field of container sealing testing. One is the pressure testing method, which applies pressure to the inside of the container and then monitors pressure changes to determine if a leak exists. Another is the vacuum testing method, which places the container in a vacuum environment and observes changes in the pressure difference between the inside and outside of the container to determine its sealing performance. There is also the visual inspection method, which uses manual or machine vision to inspect the container's appearance for obvious damage, cracks, etc. In addition, there is the helium mass spectrometry leak detection method, which utilizes the high permeability of helium gas and the high sensitivity of a helium mass spectrometer to detect minute leaks. However, existing detection methods all have certain limitations. Pressure testing and vacuum testing methods may not be sensitive enough for minute leaks, easily resulting in missed detections. Visual inspection methods can only detect obvious external defects and cannot effectively detect some minor internal leaks. While helium mass spectrometry (HMS) leak detection is highly sensitive, its equipment is expensive and the detection process is complex, making it unsuitable for large-scale, rapid detection. Furthermore, existing detection methods lack the ability to separately test different critical parts of a container to determine if it is leaking. Utility Model Content

[0003] To address the problems in the prior art, this application provides a leak detection machine.

[0004] This application provides a leak detector, including a detection mechanism and a flipping mechanism. The detection mechanism includes a power supply and a first electrode assembly. The first electrode assembly includes a first emitter and a first receiver. One end of the first emitter is electrically connected to the positive terminal of the power supply, and the other end is detachably abutted against the container to be tested. One end of the first receiver is electrically connected to the negative terminal of the power supply, and the other end is detachably abutted against the container to be tested. The first electrode assembly forms a closed circuit by abutting against the container to be tested. Two detection mechanisms are provided, used to sequentially detect different parts of the same container to be tested. The flipping mechanism is located between the two detection mechanisms and is used to flip the container to be tested after it has been tested by one detection mechanism and transfer it to the next detection mechanism.

[0005] Understandably, by setting up two detection mechanisms and a flipping mechanism, the top and bottom mold-fitting lines of the same container under test can be detected separately. The first electrode assembly of the detection mechanism abuts against the top mold-fitting line of the container under test, and the detection mechanism detects the current value at that position. The flipping mechanism rotates the container, which has passed through the first detection mechanism, 180° and conveys it to the next detection mechanism. The first electrode assembly of the next detection mechanism abuts against the top mold-fitting line of the container after its inversion, and the next detection mechanism detects the current value at that position. By comparing the current values ​​from the two detection mechanisms, it is possible to determine whether the container under test has leaked.

[0006] In one embodiment, the detection mechanism further includes a second electrode assembly, which is arranged in parallel with the first electrode assembly. The second electrode assembly includes a second emitter and a second receiver. One end of the second emitter is electrically connected to the positive terminal of the power supply, and the other end of the second emitter is used to detachably contact the container to be tested. One end of the second receiver is electrically connected to the negative terminal of the power supply, and the other end of the second receiver is used to detachably contact the container to be tested.

[0007] Understandably, the second electrode assembly is spaced apart from the first electrode assembly. The second electrode assembly is used to contact different positions on the same detection surface where the first electrode assembly contacts the container under test. The second electrode assembly is used to detect current values ​​at different detection positions than the first electrode assembly, thereby expanding the detection range of the container under test and improving the overall detection accuracy of the detection mechanism for the same container.

[0008] In one embodiment, the leak detector further includes a display for displaying the current values ​​flowing through the first electrode assembly and the second electrode assembly, respectively.

[0009] By visually comparing the current values ​​of the first and second electrode components on the display, it is possible to determine which electrode component the leak point is closer to, thus enabling preliminary location of the leak area and improving the accuracy of detection.

[0010] In one embodiment, the detection mechanism further includes a first motor, a drive wheel, and a clamping band. The first motor is used to output rotational torque, the drive wheel is driven and connected to the first motor, and the clamping band is sleeved on the outer circumferential surface of the drive wheel and driven and connected to the drive wheel.

[0011] Understandably, the first motor drives the clamping belt to hold and transport the container to be tested, ensuring that the container maintains a constant speed and stable position as it passes through the electrode assembly. This guarantees consistent contact time and pressure between the electrode and the container, avoiding fluctuations in the detection signal caused by manual operation or uneven conveying speed, and ensuring the stability of the detection results.

[0012] In one embodiment, the flipping mechanism includes at least two parallel flipping belts and at least two sets of rotating wheel assemblies with different rotational speeds. The flipping belts are sleeved on the outer circumferential surface of the rotating wheel assemblies, and the rotating wheel assemblies are driven to rotate the flipping belts.

[0013] Understandably, the speed difference generated by the two rotating belts driven by rollers at different speeds can smoothly and accurately achieve a 180° rotation of the container. This differential rotation design has the advantages of simpler structure, more stable operation, and easier maintenance, ensuring that the container's posture can be quickly and accurately adjusted between two inspections.

[0014] In one embodiment, the flipping mechanism further includes a support assembly and an adjustment assembly; the support assembly includes a nut and a support frame, the nut and the support frame are detachably connected, the support frame is detachably connected to a set of rotating wheels, the adjustment assembly includes an adjustment wheel and a screw, the nut has a threaded hole that mates with the screw, the end of the screw near the nut is helically connected to the nut, and the end of the screw away from the nut is driven to connect to the adjustment wheel.

[0015] Understandably, when it is necessary to inspect containers of different diameters or sizes, operators can precisely adjust the spacing between the two rotating belts by rotating the adjusting wheel and using the screw to adapt it to containers of different specifications.

[0016] In one embodiment, the flipping mechanism further includes a scale that is detachably connected to the side of the support frame near the adjusting wheel.

[0017] Understandably, the presence of the scale makes the adjustment process visible and standardized, allowing operators to quickly and accurately switch specifications based on preset parameters. This expands the applicability of the flipping mechanism, meaning the leak detector is no longer limited to a single specification.

[0018] In one embodiment, the leak detector further includes a feeding conveying mechanism, which includes a second motor, a second sprocket, and a chain. The second motor is used to output rotational torque, the second sprocket is driven and connected to the second motor, and the chain is sleeved on the outer circumferential surface of the second sprocket and driven and connected to the second sprocket.

[0019] Understandably, the feeding conveyor mechanism automates the front-end feeding of the inspection process, reduces manual intervention, and ensures the continuity and stability of feeding, thereby significantly improving the overall production efficiency and automation level of the machine.

[0020] In one embodiment, the feeding conveying mechanism further includes a cylinder striking assembly, which includes a sensor, a cylinder, a solenoid valve, and a controller. The sensor is spaced apart from the chain, the cylinder includes a piston rod for striking the container to be tested, the solenoid valve is driven by the cylinder, and the controller is communicatively connected to the sensor and the solenoid valve.

[0021] Understandably, the sensor transmits an electrical signal to the controller, which then opens the solenoid valve, thereby driving the piston rod of the cylinder to precisely tap the container being tested. This ensures that the liquid in each container is evenly distributed over its inner wall, improving the accuracy and reliability of the test.

[0022] In one embodiment, the gas handling mechanism includes a fan, a gas handling box, and a ventilation pipe, with one end of the fan connected to the gas handling box and the other end connected to the ventilation pipe.

[0023] Understandably, the power supply uses high voltage. During leak detection using high voltage, air ionization may produce gases such as ozone. Simultaneously, if the container being tested is damaged, its internal liquids or contents may evaporate into the air. Gas handling systems can promptly and effectively collect and centrally treat these waste gases, harmful gases, or volatiles generated during the process, purifying the working environment and ensuring the health and safety of operators. Attached Figure Description

[0024] Figure 1 This is a front view of the leak detector provided in the embodiments of this application.

[0025] Figure 2 This is a cross-sectional view of the leak detector provided in the embodiments of this application.

[0026] Figure 3 This is a schematic diagram of the testing institution provided in the embodiments of this application.

[0027] Figure 4 This is a schematic diagram of the flipping mechanism provided in the embodiments of this application.

[0028] Figure 5 yes Figure 1 A magnified view of part A in the middle.

[0029] Figure 6 yes Figure 2 A magnified view of part B in the middle section.

[0030] Figure 7 yes Figure 2 A magnified view of part C in the middle.

[0031] Figure 8 This is a schematic diagram of the gas processing mechanism provided in the embodiments of this application.

[0032] Figure 9 This is a schematic diagram of the testing mechanism provided in the embodiments of this application.

[0033] Figure 10 This is a schematic diagram of the principle of detecting no leakage provided in the embodiments of this application.

[0034] Figure 11 This is a schematic diagram of the principle of detecting leakage provided in the embodiments of this application.

[0035] Explanation of reference numerals in the attached drawings: 1. Detection mechanism; 11. Power supply; 12. First electrode assembly; 121. First emitter; 122. First receiver; 13. First motor; 14. Drive wheel; 15. Clamping belt; 16. Second electrode assembly; 161. Second emitter; 162. Second receiver; 2. Tilting mechanism; 21. Tilting belt; 22. Rotating wheel assembly; 23. Support assembly; 231. Nut; 2311. Threaded hole; 232. Support frame; 24. Adjustment. Components; 241, Adjusting wheel; 242, Screw; 25, Scale; 3, Display; 4, Feed conveyor mechanism; 41, Second motor; 42, Second sprocket; 43, Chain; 44, Cylinder striking assembly; 441, Sensor; 442, Cylinder; 4421, Piston rod; 443, Solenoid valve; 444, Controller; 5, Gas handling mechanism; 51, Blower; 52, Gas handling box; 53, Ventilation pipe; 6, Material distribution and clamping mechanism; 7, Rejection mechanism. Detailed Implementation

[0036] The following is in conjunction with the appendix Figures 1 to 11 This application will be described in further detail below.

[0037] The technical solutions in the embodiments of this application will be further described in detail below with reference to the accompanying drawings. The described embodiments are only possible technical implementations of this application, but are not limited thereto. Other embodiments obtained by those skilled in the art in conjunction with the embodiments of this application without creative effort are also within the protection scope of this application.

[0038] This application discloses a leak detector. (Refer to...) Figure 1 The leak detection machine includes a detection mechanism 1 and a flipping mechanism 2.

[0039] In one embodiment, the detection mechanism 1 includes a power supply 11 and a first electrode assembly 12. The first electrode assembly 12 includes a first emitter 121 and a first receiver 122. One end of the first emitter 121 is electrically connected to the positive terminal of the power supply 11, and the other end of the first emitter 121 is used to detachably abut against the container to be tested. One end of the first receiver 122 is electrically connected to the negative terminal of the power supply 11, and the other end of the first receiver 122 is used to detachably abut against the container to be tested. The first electrode assembly 12 is used to form a closed circuit by abutting against the container to be tested. Two detection mechanisms 1 are provided, which are used to sequentially detect different parts of the same container to be tested. A flipping mechanism 2 is provided between the two detection mechanisms 1. The flipping mechanism 2 is used to flip the container to be tested after it has been tested by one detection mechanism 1 and transfer it to the next detection mechanism 1.

[0040] In this embodiment, the container to be tested is placed at the position of the first electrode assembly 12 of the first detection mechanism 1. The first electrode assembly 12 abuts against the mold line position at the top of the container to be tested. The detection mechanism 1 detects the current value at the mold line position at the top of the container to be tested. The flipping mechanism 2 flips the container that has passed through the first detection mechanism 1 by 180° and conveys the container to the next detection mechanism 1. The first electrode assembly 12 of the next detection mechanism 1 abuts against the mold line position at the top of the container to be tested after the flip, and the next detection mechanism 1 is used to detect the current value at the mold line position at the top of the container to be tested after the flip. By detecting the current values ​​in the two detection mechanisms 1 respectively and comparing them with a preset threshold, it is possible to determine whether the container to be tested has leaked.

[0041] The power supply 11 uses a high-frequency power supply of 10 to 50 kHz, which improves the capacitive reactance sensitivity and can detect leaks of 0.1 μm level on the container under test.

[0042] The first receiving electrode 122 is detachably connected to the first transmitting electrode 121 above it along the direction of gravity, and the first receiving electrode 122 and the first transmitting electrode 121 are spaced apart.

[0043] See Figure 9 , Figure 10 and Figure 11 Its working principle is as follows: the insulating bottle wall prevents the electrodes from contacting the solution, thus generating capacitance. C1 and C2 are the capacitance values ​​between the electrodes and the solution, respectively, and R0 is the resistance value of the solution. When the container under test is leak-free, the closed circuit generates an induced micro-current; when the container leaks, the capacitance between the bottle wall and the electrodes disappears, the capacitive reactance generated by the capacitance becomes zero, and the closed circuit generates a larger micro-current. By simply comparing the current magnitudes in the first detection mechanism 1 and the second detection mechanism 1, it can be determined whether the container has leaked.

[0044] In one embodiment, the leak detector further includes a feeding conveying mechanism 4, which includes a second motor 41, a second sprocket 42, and a chain 43. The second motor 41 is used to output rotational torque, the second sprocket 42 is driven to the second motor 41, and the chain 43 is sleeved on the outer peripheral surface of the second sprocket 42 and driven to the second sprocket 42.

[0045] In this embodiment, the container to be tested is automatically and continuously fed into the first testing mechanism 1 via the feeding conveyor 4, seamlessly connecting with the subsequent testing, flipping, and second testing processes to form a complete automated testing production line. This setup achieves automated feeding at the front end of the testing process, reduces manual intervention, and ensures the continuity and stability of feeding, thereby significantly improving the overall production efficiency and automation level of the machine.

[0046] In one embodiment, the feeding conveying mechanism 4 further includes a cylinder tapping assembly 44, which includes a sensor 441, a cylinder 442, a solenoid valve 443, and a controller 444. The sensor 441 is spaced apart from the chain 43. The cylinder 442 includes a piston rod 4421, which is used to tap the container to be tested. The solenoid valve 443 is driven and connected to the cylinder 442. The controller 444 is communicatively connected to the sensor 441 and the solenoid valve 443.

[0047] In this embodiment, the leak detector includes four cylinder-operated striking assemblies 44, symmetrically arranged on both sides of the chain 43. When the container to be tested is transported to the cylinder-operated striking assembly 44 via the chain 43, the sensor 441 detects the position of the container. The sensor 441 transmits an electrical signal to the controller 444, which then opens the solenoid valve 443, thereby driving the piston rod 4421 of the cylinder 442 to precisely strike the container. This ensures that the liquid in each container is evenly distributed over the inner wall of the container, improving the accuracy and reliability of the detection.

[0048] This leak detector also includes a material distribution and clamping mechanism 6, which is detachably connected between the chain 43 and the clamping belt 15. The material distribution and clamping mechanism 6 is used to set the distance between the chain 43 and the container to be tested when it is conveyed to the material distribution and clamping mechanism 6. By setting the material distribution and clamping mechanism 6, the containers to be tested enter the clamping belt 15 at a fixed interval, which helps to reduce the error caused by the non-fixed interval of the containers to be tested and improves the accuracy of the detection by the first detection mechanism 1.

[0049] In one embodiment, the detection mechanism 1 further includes a first motor 13, a drive wheel 14, and a clamping strap 15. The first motor 13 is used to output rotational torque, the drive wheel 14 is drivenly connected to the first motor 13, and the clamping strap 15 is sleeved on the outer peripheral surface of the drive wheel 14 and is drivenly connected to the drive wheel 14.

[0050] In this embodiment, the clamping belt 15 is connected to the chain 43 for transmission. The first motor 13 drives the clamping belt 15 to clamp and transport the container to be tested, ensuring that the container maintains a constant speed and stable position as it passes through the electrode assembly. This ensures that the contact time and contact pressure between the electrode and the container remain consistent. It avoids fluctuations in the detection signal caused by manual operation or uneven conveying speed, thus guaranteeing the stability of the detection results.

[0051] In one embodiment, the detection mechanism 1 further includes a second electrode assembly 16, which is arranged in parallel with the first electrode assembly 12. The second electrode assembly 16 includes a second emitter 161 and a second receiver 162. One end of the second emitter 161 is electrically connected to the positive terminal of the power supply 11, and the other end of the second emitter 161 is used to detachably contact the container to be tested. One end of the second receiver 162 is electrically connected to the negative terminal of the power supply 11, and the other end of the second receiver 162 is used to detachably contact the container to be tested.

[0052] In one embodiment, the leak detector further includes a display 3 for displaying the current values ​​flowing through the first electrode assembly 12 and the second electrode assembly 16, respectively.

[0053] In this embodiment, the second electrode assembly 16 is disposed at a distance from the first electrode assembly 12. The second electrode assembly 16 is used to contact different positions on the same detection surface of the first electrode assembly 12 and the container to be tested. The second electrode assembly 16 is used to detect the current value at different detection positions than the first electrode assembly 12.

[0054] The current values ​​of the first electrode assembly 12 and the second electrode assembly 16 can be visually compared using the display 3. When there is a leak in the container, the current values ​​of the first electrode assembly 12 and the second electrode assembly 16 will differ. By using the display 3, it is possible to determine which electrode assembly the leak point is closer to, thereby achieving preliminary location of the leak area and improving the accuracy of the detection.

[0055] This leak detector also includes two rejection mechanisms 7. The first rejection mechanism 7 is sandwiched between the first detection mechanism 1 and the flipping mechanism 2. The first rejection mechanism 7 is used to reject unqualified containers that have been detected by the first detection mechanism 1.

[0056] In one embodiment, the flipping mechanism 2 includes at least two parallel flipping belts 21 and at least two sets of rotating wheel groups 22 with different rotation speeds. The flipping belts 21 are sleeved on the outer circumferential surface of the rotating wheel groups 22, and the rotating wheel groups 22 are driven to rotate the flipping belts 21.

[0057] In this embodiment, the flipping belt 21 is connected to the clamping belt 15 via a transmission. The speed difference generated by the two flipping belts 21 driven by the roller assembly 22 at different speeds can smoothly and accurately achieve a 180° flip of the container. This differential flipping design has the advantages of simpler structure, more stable operation, and easier maintenance, ensuring that the container can be quickly and accurately adjusted in attitude between two inspections.

[0058] In one embodiment, the flipping mechanism 2 further includes a support component 23 and an adjustment component 24; the support component 23 includes a nut 231 and a support frame 232, the nut 231 and the support frame 232 are detachably connected, the support frame 232 is detachably connected to a set of rotating wheels 22, the adjustment component 24 includes an adjustment wheel 241 and a screw 242, the nut 231 has a threaded hole 2311 that mates with the screw 242, one end of the screw 242 near the nut 231 is screwed to the nut 231, and the other end of the screw 242 away from the nut 231 is driven to the adjustment wheel 241.

[0059] Understandably, in this embodiment, when it is necessary to inspect containers of different diameters or sizes, the operator can precisely adjust the spacing between the two flipping belts 21 by rotating the adjusting wheel 241 and using the screw 242, so that it can adapt to containers of different specifications.

[0060] In one embodiment, the flipping mechanism 2 further includes a scale 25, which is detachably connected to the side of the support frame 232 near the adjusting wheel 241.

[0061] The presence of the scale 25 makes the adjustment process visible and standardized, allowing operators to quickly and accurately switch specifications based on preset parameters. This expands the applicability of the flipping mechanism 2, making the leak detector no longer limited to a single specification.

[0062] The next detection mechanism 1 is connected to the end of the flipping mechanism 2 away from the previous detection mechanism 1. The next detection mechanism 1 is used to detect the current value at the top mold-fitting line position after the container to be tested is flipped. The flipping mechanism 2 is located between the two detection mechanisms 1. One detection mechanism 1, the flipping mechanism 2, and the other detection mechanism 1 are arranged along the production line flow direction of this leak detector.

[0063] The second rejection mechanism 7 is located on the side of the second inspection mechanism 1 away from the flipping mechanism 2. The second rejection mechanism 7 is used to reject unqualified containers that have been inspected by the second inspection mechanism 1.

[0064] In one embodiment, the leak detector further includes a gas processing mechanism 5, which includes a fan 51, a gas processing box 52, and a ventilation pipe 53. One end of the fan 51 is connected to the gas processing box 52, and the other end is connected to the ventilation pipe 53.

[0065] In this embodiment, the air inlet of the ventilation pipe 53 is located between the first electrode assembly 12 and the second electrode assembly 16. During the leak detection process using the high-voltage power supply 11, air ionization may generate gases such as ozone. Simultaneously, if the container under test is damaged, its internal liquid or contents may evaporate into the air. The gas handling mechanism 5 can effectively collect and centrally treat these waste gases, harmful gases, or volatiles generated during the process, purifying the working environment, ensuring the health and safety of operators, and meeting modern clean production requirements, making the overall equipment safer and more environmentally friendly.

[0066] The implementation principle of this embodiment is as follows: The leak detector conveys the container to be tested to the cylinder striking assembly 44 via the feeding conveying mechanism 4. The cylinder striking assembly 44 strikes the container to be tested, ensuring that the liquid inside the container fully adheres to the inner wall of the container. Then, the material distribution and clamping mechanism 6 arranges the containers to be tested at equal intervals, and the containers are conveyed to the first detection mechanism 1. The first detection mechanism 1 detects the current at the top mold line position of the container to be tested and conveys the tested container to the flipping mechanism 2. The flipping mechanism 2 flips the container tested by the first detection mechanism 1 by 180° and conveys the container to the second detection mechanism 1. The second detection mechanism 1 detects the current at the top mold line position of the flipped container. The gas treatment mechanism 5 absorbs and treats any harmful gases that may be generated during the entire testing process. Compared with the prior art, the first detection mechanism 1, the flipping mechanism 2, and the second detection mechanism 1 can detect different positions of the container to be tested to determine whether the container is leaking.

[0067] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A leak detector, characterized in that, include: The detection mechanism (1) includes a power supply (11) and a first electrode assembly (12). The first electrode assembly (12) includes a first emitter (121) and a first receiver (122). One end of the first emitter (121) is electrically connected to the positive terminal of the power supply (11), and the other end of the first emitter (121) is used to detachably contact the container to be tested. One end of the first receiver (122) is electrically connected to the negative terminal of the power supply (11), and the other end of the first receiver (122) is used to detachably contact the container to be tested. The first electrode assembly (12) is used to contact the container to be tested to form a closed circuit. Two detection mechanisms (1) are provided to sequentially detect different parts of the same container to be tested. A flipping mechanism (2) is provided between two detection mechanisms (1). The flipping mechanism (2) is used to flip the container to be tested after it has been detected by one of the detection mechanisms (1) and transfer it to the next detection mechanism (1), so that the same container to be tested is in a different detection posture in the two detection mechanisms (1).

2. The leak detector according to claim 1, characterized in that, The detection mechanism (1) further includes a second electrode assembly (16), which is arranged in parallel with the first electrode assembly (12). The second electrode assembly (16) includes a second emitter (161) and a second receiver (162). One end of the second emitter (161) is electrically connected to the positive terminal of the power supply (11), and the other end of the second emitter (161) is used to detachably contact the container to be tested. One end of the second receiver (162) is electrically connected to the negative terminal of the power supply (11), and the other end of the second receiver (162) is used to detachably contact the container to be tested.

3. The leak detector according to claim 2, characterized in that, Also includes: The display (3) is used to display the current values ​​flowing through the first electrode assembly (12) and the second electrode assembly (16), respectively.

4. The leak detector according to claim 1, characterized in that, The detection mechanism (1) further includes a first motor (13), a drive wheel (14) and a clamping band (15). The first motor (13) is used to output rotational torque. The drive wheel (14) is driven to connect with the first motor (13). The clamping band (15) is sleeved on the outer circumferential surface of the drive wheel (14) and is driven to connect with the drive wheel (14).

5. The leak detector according to claim 1, characterized in that: The flipping mechanism (2) includes at least two parallel flipping belts (21) and at least two sets of rotating wheel groups (22) with different rotation speeds. The flipping belts (21) are sleeved on the outer circumferential surface of the rotating wheel groups (22), and the rotating wheel groups (22) are driven to rotate the flipping belts (21).

6. The leak detector according to claim 5, characterized in that, The flipping mechanism (2) further includes a support assembly (23) and an adjustment assembly (24); the support assembly (23) includes a nut (231) and a support frame (232), the nut (231) is detachably connected to the support frame (232), the support frame (232) is detachably connected to a set of the rotating wheel assembly (22), the adjustment assembly (24) includes an adjustment wheel (241) and a screw (242), the nut (231) has a threaded hole (2311) that mates with the screw (242), one end of the screw (242) near the nut (231) is helically connected to the nut (231), and the other end of the screw (242) away from the nut (231) is drivenly connected to the adjustment wheel (241).

7. The leak detector according to claim 6, characterized in that, The flipping mechanism (2) also includes a scale (25) which is detachably connected to the support frame (232) on the side near the adjusting wheel (241).

8. The leak detector according to claim 1, characterized in that, It also includes a feeding conveying mechanism (4), which includes a second motor (41), a second sprocket (42) and a chain (43). The second motor (41) is used to output rotational torque. The second sprocket (42) is driven to the second motor (41). The chain (43) is sleeved on the outer circumferential surface of the second sprocket (42) and is driven to the second sprocket (42).

9. The leak detector according to claim 8, characterized in that, The feeding conveying mechanism (4) further includes a cylinder tapping assembly (44), which includes a sensor (441), a cylinder (442), a solenoid valve (443), and a controller (444). The sensor (441) is spaced apart from the chain (43). The cylinder (442) includes a piston rod (4421) for tapping the container to be tested. The solenoid valve (443) is driven and connected to the cylinder (442). The controller (444) is communicatively connected to the sensor (441) and the solenoid valve (443).

10. The leak detector according to claim 1, characterized in that, It also includes a gas processing mechanism (5), which includes a fan (51), a gas processing box (52) and a ventilation pipe (53). One end of the fan (51) is connected to the gas processing box (52), and the other end is connected to the ventilation pipe (53).

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