An adaptively coupled radioactive gas sampling device

Abstract

The present invention relates to an adaptively coupled radioactive gas sampling device, comprising an outer box, a sampling steel cylinder and two second cylinders, a support seat is provided on the bottom of the outer box through a trigger assembly, first cylinders are provided on both sides of the outer box, a first piston is provided in the first cylinder, a piston rod is provided on the first piston, the end of the piston rod passes through the first cylinder and is provided with a male joint, the sampling steel cylinder is placed on the support seat, female joints are provided at both ends of the sampling steel cylinder, the two second cylinders are respectively provided on the top of the outer box, the two second cylinders are respectively connected to the two first cylinders, a second piston is provided in the second cylinder, a first slide bar is provided on the second piston, the first slide bar passes through the top of the outer box and is connected to an adaptive driving mechanism provided on the top of the outer box. The sampling device in the prior art effectively solves the problem that the sampling device needs to manually connect multiple pipe connectors when sampling, and also needs to manually switch multiple valves, resulting in cumbersome operation procedures, time-consuming and labor-intensive, and low sampling efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of sampling equipment, and in particular relates to an adaptively joined radioactive gas sampling equipment. Background Art

[0002] The nuclear island of a nuclear power plant is equipped with core cooling pipes. The coolant in the cooling pipes is easily decomposed into hydrogen and oxygen (2H20→2H2+O2) under high temperature and high pressure. Excessive oxygen is easy to cause oxidation corrosion of the cooling pipes and easily react with hydrogen to produce explosions. Therefore, hydrogen is added to the cooling pipes to inhibit the occurrence of decomposition reactions and reduce the amount of oxygen generated. However, in order to avoid excessive accumulation of oxygen, chemists need to regularly test the hydrogen and oxygen content of radioactive gases in the cooling pipes to ensure safe operation.

[0003] At present, the sampling equipment in the prior art mainly includes an air inlet pipe, a sampling steel cylinder and an exhaust pipe. Manual valves are arranged on the air inlet end of the sampling steel cylinder, the air outlet end of the sampling steel cylinder, the air inlet pipe and the exhaust pipe. The air inlet pipe is connected to the collection gas source, and the exhaust pipe is connected to the radioactive gas decay device. When sampling is required, the air inlet end and the air outlet end of the sampling steel cylinder are respectively connected to the air inlet pipe and the exhaust pipe through pipe connectors (such as quick connectors), and then each valve is manually opened to allow the gas sample to be injected into the sampling steel cylinder. The function of the exhaust pipe is to prevent the gas from flowing into the sampling steel cylinder due to excessive pressure in the bottle. However, the problem existing in the prior art is that multiple pipe connectors need to be manually connected during the sampling process, and multiple valves need to be manually opened and closed, resulting in cumbersome operation procedures, time-consuming and labor-intensive, and low sampling efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide an adaptively coupled radioactive gas sampling device to address the deficiencies in the prior art, thereby effectively solving the problem that the sampling device in the prior art needs to manually connect multiple pipe connectors during sampling, and also needs to manually open and close multiple valves, resulting in cumbersome operation procedures, time-consuming and labor-intensive, and low sampling efficiency.

[0005] The technical solution adopted by the present invention is:

[0006] A radioactive gas sampling device with adaptive coupling comprises an outer box, a sampling steel cylinder and two second cylinder bodies, a support seat is arranged on the bottom of the outer box through a trigger assembly, first cylinder bodies are arranged on the inner walls on both sides of the outer box, a first piston is arranged in the first cylinder body, a piston rod is arranged on the first piston, the end of the piston rod passes through the first cylinder body and is provided with a male joint, the sampling steel cylinder is placed on the support seat, female joints corresponding to the male joint are arranged at both ends of the sampling steel cylinder, the male joint and the female joint can be coupled to each other and conduct to each other when coupled, the two second cylinder bodies are respectively arranged on the top of the outer box, the two second cylinder bodies are respectively connected to the two first cylinder bodies through pipelines, a second piston is arranged in the second cylinder body, a first slide bar is arranged on the second piston, the first slide bar passes through the top of the outer box and is connected to an adaptive driving mechanism arranged on the top of the outer box, and the adaptive driving mechanism is electrically connected to the trigger assembly.

[0007] Furthermore, the adaptive driving mechanism includes a first U-shaped frame and a controller arranged on the top of the outer box, second sliding rods are slidably penetrated on both sides of the top of the first U-shaped frame, a rack is provided at the bottom of the second sliding rod, the bottom of the rack is connected to the top of the first sliding rod, the electric telescopic rod is arranged on the top of the first U-shaped frame and is located between the two racks, a second U-shaped frame is provided at the end of the electric telescopic rod, a rotating shaft is penetrated on the second U-shaped frame, a gear is rotatably provided on the rotating shaft, both sides of the gear are respectively meshed with the two racks, and the controller is electrically connected to the electric telescopic rod.

[0008] Furthermore, at least one of the first cylinders is provided with a pressure sensor, and the pressure sensor is electrically connected to the controller.

[0009] Furthermore, it also includes a manual switch arranged on the top of the outer box, and the manual switch is electrically connected to the controller.

[0010] Furthermore, the trigger assembly includes a plurality of first sleeves, an upper contact block and a lower contact block arranged on the bottom of the outer box, a third slide bar is slidably arranged in the first sleeve, the top of the third slide bar is connected to the support seat, a first spring is sleeved on the first sleeve, and the two ends of the first spring are respectively connected to the bottom of the support seat and the bottom of the outer box, the upper contact block and the lower contact block are respectively arranged on the bottom of the support seat and the bottom of the outer box, and the upper contact block and the lower contact block are electrically connected to the controller.

[0011] Furthermore, the male connector includes a male shell arranged on the end of the piston rod, a first air outlet is arranged at the front end of the male shell, a hose is connected to the side of the male shell away from the first air outlet, a first valve core matching with the first air outlet is arranged in the male shell, and the first valve core is connected to the rear wall of the male shell through a reset assembly; the female connector includes a female shell matching with the male shell, a push rod and a second spring, the female shell is an open structure at both ends, the female shell is arranged on the sampling cylinder, a valve seat is slidably arranged in the female shell, a second air inlet is arranged on the valve seat, the push rod is arranged in the female shell, the front end of the push rod passes through the second air inlet and is provided with a second valve core, the second spring is sleeved on the push rod and abuts between the valve seat and the side wall of the sampling cylinder, the female shell is connected to the sampling cylinder through a plurality of second air outlets, and the second air outlet is arranged on the sampling cylinder.

[0012] Furthermore, the reset assembly includes a third spring, a fourth slide rod arranged on the first valve core and a second sleeve arranged on the rear wall of the male housing, the fourth slide rod is slidably arranged in the second sleeve, the third spring is sleeved on the second sleeve and abuts between the first valve core and the rear wall of the male housing.

[0013] Furthermore, a sealing ring is provided at the connection between the valve seat and the female shell.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. When sampling is required, place the sampling cylinder on the support seat, the support seat acts on the contact component, the contact component transmits a contact signal to the adaptive driving mechanism, the adaptive driving mechanism drives the two first slide bars to slide downward on the top of the outer box, the first slide bar drives the second piston to slide in the second cylinder, the second piston drives the first piston to slide in the first cylinder by hydraulic pressure, the first piston drives the male joint toward the female joint through the piston rod, the two male joints move relatively close to the two female joints in the middle and engage; after the sampling is completed, the adaptive driving mechanism is used to drive the first slide bar to slide upward to separate the male joint from the female joint, so as to realize the automatic connection and disconnection of the male joint and the female joint, the operation is simple and convenient, which greatly reduces the labor of manual operation and improves the sampling efficiency.

[0016] 2. By utilizing the mutual coupling effect between the male connector and the female connector, the male connector and the female connector are automatically connected during the joining process and automatically blocked during the separation process. There is no need to manually switch the valve, thus achieving fully automatic sampling, simplifying the operation process, further reducing the labor of manual operation, and improving sampling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention in an unconnected state;

[0018] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0019] Figure 3 This is a schematic diagram of the control principle of the semi-connected state of the present invention;

[0020] Figure 4 for Figure 3 The enlarged view of point B in the middle;

[0021] Figure 5 It is a schematic diagram of the overall structure after connection of the present invention;

[0022] Figure 6 for Figure 5 Enlarged view of point C in the middle;

[0023] Figure 7 It is a schematic diagram of the matching structure of the electric telescopic rod and the gear of the present invention;

[0024] In the figure: 1, sampling cylinder; 2, support seat; 3, upper contact block; 4, lower contact block; 5, third slide bar; 6, first sleeve; 7, first spring; 8, piston rod; 9, first cylinder; 10, first piston; 11, pressure sensor; 12, pipeline; 13, hose; 14, outer box; 15, second cylinder; 16, second piston; 17, first slide bar; 18, rack; 19, gear; 20, second U-shaped frame; 21 , electric telescopic rod; 22, second slide bar; 23, first U-shaped frame; 24, controller; 25, manual switch; 26, male housing; 27, first air outlet; 28, second valve core; 29, valve seat; 30, push rod; 31, second air outlet; 32, second spring; 33, second air inlet; 34, female housing; 35, first valve core; 36, fourth slide bar; 37, third spring; 38, second sleeve; 39, rotating shaft. DETAILED DESCRIPTION

[0025] In order to better understand the technical content of the present invention, specific embodiments are provided below, and the present invention is further described in conjunction with the accompanying drawings.

[0026] See also Figures 1 to 7The present invention provides an adaptively joined radioactive gas sampling device, comprising an outer box 14, a sampling steel cylinder 1 and two second cylinder bodies 15. The front side of the outer box 14 is an open structure to facilitate the taking and placing operation of the sampling steel cylinder 1. A support seat 2 is arranged in the middle of the bottom of the outer box 14 through a trigger assembly. First cylinder bodies 9 are relatively arranged on the inner walls of both sides of the outer box 14. A first piston 10 is slidably arranged in the first cylinder body 9. A piston rod 8 is arranged on the first piston 10. The end of the piston rod 8 passes through the first cylinder body 9 and is provided with a male joint. The sampling steel cylinder 1 is placed on the support seat 2. The sampling steel cylinder 1 is a square structure, which is conducive to making the female joint and the male joint relatively aligned when placed on the support seat 2. The pre-engagement position is easy to operate. Female connectors corresponding to the male connectors are relatively arranged at both ends of the sampling cylinder 1. The male connector and the female connector are coupled to each other so that the male connector and the female connector are automatically connected during the engagement process and automatically blocked during the separation process. The two second cylinder bodies 15 are respectively arranged on the top of the outer box 14. The two second cylinder bodies 15 are respectively connected to the two first cylinder bodies 9 through the pipeline 12. A second piston 16 is slidably arranged in the second cylinder body 15. A first slide bar 17 is arranged on the second piston 16. The first slide bar 17 slides through the top of the outer box 14 and is connected to the adaptive driving mechanism arranged on the top of the outer box 14. The adaptive driving mechanism is electrically connected to the trigger component.

[0027] Specifically, the adaptive driving mechanism includes a first U-shaped frame 23 and a controller 24 arranged on the top of the outer box 14, and second slide bars 22 are slidably penetrated on both sides of the top of the first U-shaped frame 23, and the two second slide bars 22 are parallel. A rack 18 is provided at the bottom of the second slide bar 22, and the bottom of the rack 18 is connected to the top of the first slide bar 17. The electric telescopic rod 21 is arranged at the top of the first U-shaped frame 23 and is located between the two racks 18. A second U-shaped frame 20 is provided at the end of the electric telescopic rod 21, and a rotating shaft 39 is penetrated on the second U-shaped frame 20. A gear 19 is rotatably provided on the rotating shaft 39, and the two sides of the gear 19 are respectively meshed with the two racks 18, and the controller 24 is electrically connected to the electric telescopic rod 21. After receiving the contact signal, the controller 24 controls the electric telescopic rod 21 to drive the gear 19 to move downward, the gear 19 drives the two racks 18 to slide in the first U-shaped frame 23, the rack 18 drives the first slide bar 17 and the second slide bar 22 to slide on the top of the outer box 14 and the first U-shaped frame 23 respectively, the first slide bar 17 drives the second piston 16 to slide in the second cylinder 15, the second piston 16 drives the first piston 10 to slide in the first cylinder 9 by hydraulic action, the first piston 10 drives the male joint to move toward the female joint through the piston rod 8, the two male joints move relatively close to the two female joints in the middle, when the male joint on the left side contacts the female joint first, the male joint on the left side is subjected to resistance, and under the cooperation of the gear 19 and the two racks 18, the gear 19 rotates clockwise around the rotating shaft 39 driven by the electric telescopic rod 21 and moves to The gear 19 then moves downward, so that the rack 18 on the left side remains in the current position, thereby keeping the male connector on the left side in the current position, while the rack 18 on the right side slides downward driven by the gear 19, and the rack 18 on the right side drives the male connector on the right side to approach the female connector on the right side. When the male connectors on both sides are in contact with the female connector, the racks 18 on both sides are subjected to the same resistance, so that the gear 19 stops rotating and moves downward, and the gear 19 drives the two racks 18 to slide downward synchronously, so that the male connectors on both sides are squeezed toward the female connector for engagement synchronously, effectively avoiding the problem that when one of the male connectors on both sides contacts the female connector first, the sampling cylinder 1 is pushed to deviate, resulting in the relative position of the male connector and the female connector being misaligned, causing poor engagement or engagement failure, thereby improving the stability of automatic engagement, and the sampling cylinder 1 does not need to be placed in the middle of the two male connectors during sampling, making the operation more convenient.

[0028] Specifically, a pressure sensor 11 is provided in the first cylinder body 9 on the left side, and the pressure sensor 11 is electrically connected to the controller 24. The controller 24 has a preset pressure threshold. When the pressure sensor 11 detects that the hydraulic pressure in the first cylinder body 9 reaches the pressure threshold, it indicates that the male connector and the female connector are engaged. The controller 24 controls the electric telescopic rod 21 to stop extending, thereby achieving effective automatic control of the operation of the electric telescopic rod 21, ensuring good engagement of the male connector and the female connector, and improving the reliability of the engagement.

[0029] Specifically, it also includes a manual switch 25 disposed on the top of the outer box 14, and the manual switch 25 is electrically connected to the controller 24. The manual switch 25 provides a manual control mode. After sampling starts, the manual switch 25 can be operated to send a signal to the controller 24 to disconnect the male connector and the female connector to stop sampling. The sampling time can also be set in the controller 24. After 30 minutes after the pressure in the first cylinder 9 reaches the pressure threshold, the controller 24 controls the electric telescopic rod 21 to retract to disconnect the male connector and the female connector and stop sampling. The sampling operation is more flexible, convenient, and more suitable for specific use.

[0030] Specifically, the trigger assembly includes a plurality of first sleeves 6, an upper contact block 3 and a lower contact block 4 arranged on the bottom of the outer box 14, a third slide bar 5 is slidably arranged in the first sleeve 6, the top of the third slide bar 5 is connected to the support seat 2, a first spring 7 is sleeved on the first sleeve 6, the two ends of the first spring 7 are respectively connected to the bottom of the support seat 2 and the bottom of the outer box 14, the upper contact block 3 and the lower contact block 4 are respectively arranged on the bottom of the support seat 2 and the bottom of the outer box 14, and the upper contact block 3 and the lower contact block 4 are both electrically connected to the controller 24. After the sampling cylinder 1 is placed on the support seat 2, the support seat 2 overcomes the action of the first spring 7 and drives the upper contact block 3 to move down and contact with the lower contact block 4. After receiving the contact signal, the controller 24 controls the adaptive drive mechanism to work, thereby realizing rapid automatic engagement sampling, with a simple and reliable structure, sensitive response and high practicality.

[0031] Specifically, the male connector includes a male housing 26 disposed on the end of the piston rod 8, a first air outlet 27 is disposed at the front end of the male housing 26, a hose 13 is connected to the side of the male housing 26 away from the first air outlet 27, a first valve core 35 matching the first air outlet 27 is disposed in the male housing 26, and the first valve core 35 is connected to the rear wall of the male housing 26 through a reset assembly; the female connector includes a female housing 34 matching the male housing 26, a push rod 30 and a second spring 32, and the female housing 34 is open at both ends. The mother shell 34 is arranged on the sampling steel cylinder 1, and a valve seat 29 is slidably arranged in the mother shell 34, and a second air inlet 33 is arranged on the valve seat 29. The push rod 30 is arranged in the mother shell 34, and the front end of the push rod 30 passes through the second air inlet 33 and is provided with a second valve core 28. The second spring 32 is sleeved on the push rod 30 and abuts between the valve seat 29 and the side wall of the sampling steel cylinder 1. The mother shell 34 is connected with the sampling steel cylinder 1 through a plurality of second air outlets 31, and the second air outlets 31 are arranged on the sampling steel cylinder 1. During the process of the piston rod 8 driving the male housing 26 to insert into the female housing 34, the front end face of the male housing 26 first fits against the front end face of the valve seat 29 and overcomes the action of the second spring 32 and then pushes the valve seat 29 to move, so that the second valve core 28 is separated from the second air inlet 33 to realize the connection of the female connector. Under the action of overcoming the reset component, the second valve core 28 passes through the first air outlet 27 and drives the first valve core 35 to leave the first air outlet 27 to connect the male connector, so that the male connector and the female connector are connected first and then connected to each other, and the disconnection process is first blocked from each other and then separated, which effectively avoids the leakage of radioactive gas during the connection and disconnection of the pipe connector and improves operational safety.

[0032] Specifically, the reset assembly includes a third spring 37, a fourth slide bar 36 disposed on the first valve core 35, and a second sleeve 38 disposed on the rear wall of the male housing 26. The fourth slide bar 36 is slidably disposed in the second sleeve 38, and the third spring 37 is sleeved on the second sleeve 38 and abuts between the first valve core 35 and the rear wall of the male housing 26. In the process of the first valve core 35 being attached to the first gas outlet 27, the fourth slide bar 36 is used to slide in the second sleeve 6 for guidance, ensuring that the first valve core 35 can well block the first gas outlet 27 when the male connector is separated from the female connector, effectively avoiding the leakage of radioactive gas and improving the safety of operation.

[0033] Specifically, a sealing ring is provided at the connection between the valve seat 29 and the female housing 34 to increase the sealing performance between the valve seat 29 and the female housing 34 .

[0034] Working principle:

[0035] When sampling, the sampling cylinder 1 is placed on the support seat 2 and is in a pre-engagement position where the female connector and the male connector are aligned. Under the gravity of the sampling cylinder 1, the support seat 2 overcomes the action of the first spring 7, and under the guiding action of the third slide bar 5 and the first sleeve 6, the support seat 2 drives the upper contact block 3 to move downward and contact with the lower contact block 4. After receiving the contact signal, the controller 24 controls the electric telescopic rod 21 to drive the gear 19 to move downward, and the gear 19 drives the two racks 18 to slide in the first U-shaped frame 23. The rack 18 drives the first slide bar 17 and the second slide bar 22 to slide on the top of the outer box 14 and the top of the first U-shaped frame 23 respectively. The first slide bar 17 drives the second piston 16 to slide in the second cylinder body 15. The second piston 16 drives the first piston 10 to slide in the first cylinder body 9 by hydraulic action. The first piston 10 drives the male connector to move toward the female connector through the piston rod 8 and engages. The two male connectors move relatively close to the two female connectors in the middle. When the male connector on the left side contacts the female connector first, the male connector on the left side contacts the female connector first. The joint is subject to resistance, and under the cooperation of the gear 19 and the two racks 18, the gear 19 rotates clockwise around the rotating shaft 39 and moves downward at the same time under the drive of the electric telescopic rod 21, so that the rack 18 on the left side remains in the current position, thereby making the male joint on the left side remain in the current position, and the rack 18 on the right side slides downward under the drive of the gear 19, and the rack 18 on the right side drives the male joint on the right side to approach the female joint on the right side. When the male joints on both sides are in contact with the female joint, the racks 18 on both sides are subject to the same resistance, the gear 19 stops rotating and moves downward, the gear 19 drives the two racks 18 to slide downward synchronously, and the two racks 18 synchronously drive the male joints on both sides to squeeze and engage with the female joint through hydraulic action; when the male joint on the right side contacts the female joint first, the male joint on the right side remains stationary, and the male joint on the left side contacts the female joint on the left side and then engages synchronously. After the engagement is completed, the pressure sensor 11 in the first cylinder body 9 detects that the hydraulic value reaches the pressure threshold, and the controller 24 controls the electric telescopic rod 21 to stop working. This effectively avoids the problem that when one of the male connectors on both sides contacts the female connector first and then pushes the sampling cylinder 1 to deviate, the relative position of the male connector and the female connector deviates, resulting in poor connection or connection failure. It improves the stability of automatic connection, and when sampling, the sampling cylinder 1 does not need to be placed in the middle of the two male connectors, making the operation more convenient.

[0036] During the process of the male connector and the female connector being connected, the front end face of the male housing 26 is sealed and fitted with the front end face of the valve seat 29. Under the action of the second spring 32, the male housing 26 pushes the valve seat 29 to slide in the female housing 34. Under the action of the push rod 30, the second valve core 28 is separated from the second air inlet 33 and the female connector is connected. The male housing 26 is pushed continuously so that the second valve core 28 passes through the first air outlet 27 and abuts against the first valve core 35. Under the action of the third spring 37, the second valve core 28 pushes the first valve core 35 to leave the first air outlet 27 and the male connector is connected. The gas flows into the sampling cylinder 1 through the left hose 13, the first air outlet 27, the second air inlet 33 and the second air outlet 31 in sequence, and the original gas in the sampling cylinder 1 is pushed out through the female connector on the other side, the male connector and the hose 13 on the right side. After the sampling is finished, the controller 24 controls the electric telescopic rod 21 to shorten, so that the male connector and the female connector are first blocked and then separated from each other. The leakage of radioactive gas during the connection and disconnection of the connector is effectively avoided, thereby improving operational safety.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An adaptively coupled radioactive gas sampling device, characterized in that: It includes an outer box, a sampling steel cylinder and two second cylinder bodies. A support seat is arranged on the bottom of the outer box through a trigger assembly. First cylinder bodies are arranged relatively on the inner walls of both sides of the outer box. A first piston is arranged in the first cylinder body. A piston rod is arranged on the first piston. The end of the piston rod passes through the first cylinder body and is provided with a male joint. The sampling steel cylinder is placed on the support seat. Female joints corresponding to the male joint are arranged relatively at both ends of the sampling steel cylinder. When the male joint and the female joint are engaged, they can be coupled with each other to make them conductive. The two second cylinder bodies are respectively arranged on the top of the outer box. The two second cylinder bodies are connected with the two first cylinder bodies through pipelines. A second piston is arranged in the second cylinder body. A first slide bar is arranged on the second piston. The first slide bar passes through the top of the outer box and is connected to an adaptive driving mechanism arranged on the top of the outer box. The adaptive driving mechanism is electrically connected to the trigger assembly. The adaptive driving mechanism includes a first U-shaped frame and a controller arranged on the top of the outer box, second sliding rods are slidably penetrated on both sides of the top of the first U-shaped frame, a rack is arranged at the bottom of the second sliding rod, the bottom of the rack is connected to the top of the first sliding rod, the electric telescopic rod is arranged on the top of the first U-shaped frame and is located between the two racks, a second U-shaped frame is arranged at the end of the electric telescopic rod, a rotating shaft is penetrated on the second U-shaped frame, a gear is rotatably arranged on the rotating shaft, both sides of the gear are respectively meshed with the two racks, and the controller is electrically connected to the electric telescopic rod.

2. The adaptively coupled radioactive gas sampling device according to claim 1, characterized in that: A pressure sensor is disposed in at least one first cylinder, and the pressure sensor is electrically connected to the controller.

3. The adaptively coupled radioactive gas sampling device according to claim 1, characterized in that: It also includes a manual switch arranged on the top of the outer box, and the manual switch is electrically connected to the controller.

4. The adaptively coupled radioactive gas sampling device according to claim 1, characterized in that: The trigger assembly includes a plurality of first sleeves, an upper contact block and a lower contact block arranged on the bottom of the outer box, a third slide bar is slidably arranged in the first sleeve, the top of the third slide bar is connected to the support seat, a first spring is sleeved on the first sleeve, and the two ends of the first spring are respectively connected to the bottom of the support seat and the bottom of the outer box, the upper contact block and the lower contact block are respectively arranged on the bottom of the support seat and the bottom of the outer box, and the upper contact block and the lower contact block are both electrically connected to the controller.

5. The adaptively coupled radioactive gas sampling device according to claim 1, characterized in that: The male connector includes a male shell arranged on the end of the piston rod, a first air outlet is arranged at the front end of the male shell, a hose is connected to the side of the male shell away from the first air outlet, a first valve core matched with the first air outlet is arranged in the male shell, and the first valve core is connected to the rear wall of the male shell through a reset assembly; the female connector includes a female shell matched with the male shell, a push rod and a second spring, the female shell is an open structure at both ends, the female shell is arranged on the sampling cylinder, a valve seat is slidably arranged in the female shell, a second air inlet is arranged on the valve seat, the push rod is arranged in the female shell, the front end of the push rod passes through the second air inlet and is provided with a second valve core, the second spring is sleeved on the push rod and abuts between the valve seat and the side wall of the sampling cylinder, the female shell is connected to the sampling cylinder through a plurality of second air outlets, and the second air outlet is arranged on the sampling cylinder.

6. The adaptively coupled radioactive gas sampling device according to claim 5, characterized in that: The reset assembly includes a third spring, a fourth slide bar arranged on the first valve core and a second sleeve arranged on the rear wall of the male housing, the fourth slide bar is slidably arranged in the second sleeve, the third spring is sleeved on the second sleeve and abuts between the first valve core and the rear wall of the male housing.

7. The adaptively coupled radioactive gas sampling device according to claim 5, characterized in that: A sealing ring is arranged at the connection between the valve seat and the female housing.

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