CN113418744A

CN113418744A - Sampling device

Info

Publication number: CN113418744A
Application number: CN202110679658.XA
Authority: CN
Inventors: 刘亚光; 于沛; 李庆华; 李博; 房丽萍; 赵嘉明; 赵斌
Original assignee: China Nuclear Power Engineering Co Ltd
Current assignee: China Nuclear Power Engineering Co Ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2021-09-21
Anticipated expiration: 2041-06-18
Also published as: CN113418744B

Abstract

The invention discloses a sampling device, which is used for sampling and detecting samples after accidents, and comprises a TMI plate, a shielding bridge, a lifting sliding coupling mechanism and a glove box, wherein the TMI plate, the shielding bridge and the lifting sliding coupling mechanism are all arranged in the glove box, the TMI plate comprises a panel, a sampling pipeline joint and a measuring instrument joint are arranged on the panel, the lifting sliding coupling mechanism is arranged below the TMI plate and comprises a lifting assembly and a sliding rail assembly, and under the action of the lifting assembly and the sliding rail assembly, the shielding bridge is lifted to a height which is flush with the TMI plate, so that two connecting interfaces can be respectively connected with the sampling pipeline joint and the measuring instrument joint to communicate the sampling pipeline with the measuring instrument. The sampling device is simple to operate, effectively reduces the connection difficulty of the shielding bridge and the TMI, and accelerates the connection speed.

Description

Sampling device

Technical Field

The invention belongs to the technical field of nuclear industry, and particularly relates to a sampling device.

Background

After an accident occurs in a nuclear power station, in order to help to judge the accident process after the accident, samples in a containment vessel or a reactor cooler system need to be collected, a sampling device after the accident generally adopts a glove box arranged in a sampling room of a nuclear sampling system, and the sampling device is used for connecting sampling pipelines from different positions in the containment vessel or the reactor cooler system, extracting the samples and carrying out measurement and analysis.

In the prior art, the connection device generally communicates the sample with the measurement instrument by communicating the TMI plate and the shielding bridge arranged in the glove box, and because the TMI plate and the shielding bridge in the existing glove box are connected by an operator for manual butt joint, the butt joint difficulty is high, the time is long, and the operator needs to be in close contact with radioactive substances for a long time, which is not beneficial to the health of the operator.

Therefore, a need exists for a sampling device that facilitates the docking of a shield bridge to a TMI board.

Disclosure of Invention

The technical problem to be solved by the present invention is to provide a sampling device, which can rapidly and accurately realize the butt joint operation between the shielding bridge and the TMI plate, in view of the above-mentioned deficiencies in the prior art.

In order to solve the problems, the invention adopts the following technical scheme:

the utility model provides a sampling device for the sampling test of sample after the accident, includes TMI board, shielding bridge, lift slip coupling mechanism, glove box, the TMI board the shielding bridge lift slip coupling mechanism all installs in the glove box, the TMI board includes the panel, be equipped with sample pipeline on the panel and connect and measure meter connects, lift slip coupling mechanism sets up TMI board below, it includes lifting unit and slide rail set spare, lifting unit with slide rail set connects for the drive slide rail set is elevating movement, the shielding bridge is smooth to be established slide rail set is last to be horizontal motion on slide rail set, be equipped with two connection interface and manual sample interface on the shielding bridge lifting unit with slide rail set's effect down, the shielding bridge promote to with the level of TMI board, so that two connection interface can respectively with sample pipeline connects with measure meter connects the pipeline and connects Connected to communicate the sampling line with the measuring instrument.

Preferably, a flushing line joint is further arranged on the panel of the TMI board, one of the two connecting interfaces is connected with the measuring instrument joint, and the other connecting interface is connected with the sampling line joint or the flushing line joint.

Preferably, the measuring instrument joint is arranged in the middle of the panel, the sampling pipeline joint and the flushing pipeline joint are arranged on a circumference with the position of the measuring instrument joint as a circle center, and the distance between the sampling pipeline joint and the measuring instrument joint is kept within a certain tolerance range, so that the TMI board can be connected with the connecting interface on the shielding bridge.

Preferably, the sampling pipeline joint, the measuring instrument joint and the flushing pipeline joint are quick joints, and correspondingly, the connecting interface of the shielding bridge is provided with the quick joints.

Preferably, the shielding bridge comprises a shielding cover and a connecting unit, the shielding cover covers the outside of the connecting unit, and a pressing plate used for being connected with and disengaged from the quick connector is arranged on the shielding cover. The connecting unit comprises a communicating pipe, and the quick connectors on the connecting interfaces are connected to the communicating pipe through ball heads/corrugated pipes respectively.

Preferably, install the rubber buffer in the manual sampling interface, perhaps, be equipped with the sampling tube in the manual sampling interface, still install on the manual sampling interface and press the sample valve, through pressing press the sample valve, can follow sample in the sampling tube.

Preferably, the lifting assembly comprises a lifting base, a gas spring rod, a driving rod, a synchronizing rod and a connecting rod, the lifting base is arranged below the TMI plate, the gas spring rod is vertically arranged on the lifting base, the synchronizing rod is horizontally arranged on the lifting base, the driving rod is in an obtuse L shape and comprises a first end and a second end, the joint of the first end and the second end is sleeved on the synchronizing rod, the first end is fixedly connected with the free end of the gas spring rod, the second end is rotatably connected with the sliding rail assembly, the connecting rod is parallel to the second end of the driving rod, the two ends of the connecting rod are respectively hinged on the lifting base and the sliding rail assembly, under the pushing of the gas spring rod, the second end of the driving rod and the synchronizing rod respectively rotate around the fixed ends of the driving rod and are always parallel, thereby driving the slide rail assembly to keep a vertical state to do lifting movement.

Preferably, the lifting assemblies are two groups, and the two groups of lifting assemblies are symmetrically arranged on two sides of the sliding rail assembly.

Preferably, the slide rail assembly comprises a guide rail and a sliding block, the guide rail is arranged along the horizontal direction and extends towards the direction close to the TMI board, the sliding block is arranged on the guide rail in a sliding manner, and the shielding bridge is arranged on the sliding block.

Preferably, the glove box comprises a box body, one side face of the box body is a transparent panel, a hand hole is formed in the transparent panel, a glove is hermetically mounted on the hand hole, and a gate for enabling the sampling container to enter and exit is further formed in the transparent panel.

The shielding bridge in the sampling device can accurately reach the height aligned with the upper joint of the TMI under the driving of the lifting sliding coupling mechanism, so that the butt joint with the TMI plate can be quickly and accurately completed, the whole butt joint process is short in time and low in operation difficulty, and the safety of operators is effectively ensured.

Drawings

FIG. 1 is a schematic diagram of a sampling device according to an embodiment of the present invention;

FIG. 2 is a front view of a sampling device in an embodiment of the present invention;

FIG. 3a is a front view of a TMI board in an embodiment of the present invention;

FIG. 3b is a left side view of a TMI plate in an embodiment of the present invention;

FIG. 4a is a front view of a first embodiment of a shield according to an embodiment of the present invention;

FIG. 4b is a left side view of the first embodiment of the shield of the example embodiment of the present invention;

FIG. 4c is a front view of the first embodiment of the connection unit in an example of the invention;

FIG. 4d is a left side view of the first embodiment of the attachment unit of the example of the present invention;

FIG. 5a is a front view of a second embodiment of a shield according to an embodiment of the present invention;

FIG. 5b is a left side view of a second embodiment of a shield according to an embodiment of the present invention;

FIG. 5c is a front view of a second embodiment of a connection unit according to an embodiment of the present invention;

FIG. 5d is a left side view of a second embodiment of a connection unit in an example of the invention;

FIG. 6a is a front view of a lift slide coupling mechanism in an embodiment of the present invention;

FIG. 6b is a left side view of the elevator slide coupling mechanism in an embodiment of the present invention;

FIG. 7a is a front view of the elevator slide coupling mechanism shown prior to being lifted in an embodiment of the present invention;

FIG. 7b is a left side view of the elevator slide coupling mechanism shown prior to being lifted in an embodiment of the present invention;

FIG. 8a is a front view of the elevator slide coupling mechanism after being lifted in accordance with an embodiment of the present invention;

FIG. 8b is a left side view of the elevator slide coupling mechanism after being lifted in accordance with an embodiment of the present invention;

FIG. 9 is a schematic view of a downward position of the shielding bridge relative to the sliding mechanism according to the embodiment of the present invention;

FIG. 10 is a schematic structural view of a shielding bridge relative to a sliding mechanism in an upper position according to an embodiment of the present invention;

in the figure: 1-glove box, 11-transparent panel, 12-hand hole, 13-gate, 14-glove, 2-TM I plate, 20-sampling pipeline joint, 21-flushing pipeline joint, 22-measuring instrument joint, 3-shielding bridge, 31-shielding cover, 32-pressing plate, 33-bulb, 34-connecting interface, 35-rubber plug, 36-communicating pipe, 37-bellows, 38-pressing sampling valve, 381-valve, 382-sampling pipe, 4-lifting sliding coupling mechanism, 41-lifting base, 42-gas spring rod, 43-driving rod, 44-synchronizing rod, 45-sliding rail component, 46-sliding block, 47-guide rail and 48-connecting rod.

Detailed Description

The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of the present invention.

In the description of the present invention, it should be noted that the indication of orientation or positional relationship, such as "on" or the like, is based on the orientation or positional relationship shown in the drawings, and is only for convenience and simplicity of description, and does not indicate or imply that the device or element referred to must be provided with a specific orientation, constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected," "disposed," "mounted," "fixed," and the like are to be construed broadly, e.g., as being fixedly or removably connected, or integrally connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.

The invention provides a sampling device, which is used for sampling and detecting samples after accidents, and comprises a TMI plate, a shielding bridge, a lifting sliding coupling mechanism and a glove box, wherein the TMI plate, the shielding bridge and the lifting sliding coupling mechanism are all arranged in the glove box, the TMI plate comprises a panel, a sampling pipeline joint and a measuring instrument joint are arranged on the panel, the lifting sliding coupling mechanism is arranged below the TMI plate and comprises a lifting assembly and a slide rail assembly, the lifting assembly is connected with the slide rail assembly and is used for driving the slide rail assembly to do lifting motion, the shielding bridge is arranged on the slide rail assembly in a sliding manner so as to do horizontal motion on the slide rail assembly, two connecting interfaces and a manual sampling interface are arranged on the shielding bridge, and under the action of the lifting assembly and the slide rail assembly, the shielding bridge is lifted to the height which is flush with the TMI plate, so that the two connecting interfaces can be respectively connected with the sampling pipeline joint and the measuring instrument joint to communicate the sampling pipeline and the measuring instrument.

Examples

The invention provides a sampling device, which is used for sampling and detecting samples after accidents, and comprises a TMI plate 2, a shielding bridge 3, a lifting sliding coupling mechanism 4 and a glove box 1, wherein the TMI plate 2, the shielding bridge 3 and the lifting sliding coupling mechanism 4 are all arranged in the glove box 1, the TMI plate 2 comprises a panel, a sampling pipeline joint 20 and a measuring instrument joint 22 are arranged on the panel, the lifting sliding coupling mechanism 4 is arranged below the TMI plate 2 and comprises a lifting component and a slide rail component 45, the lifting component is connected with the slide rail component 45 and is used for driving the slide rail component 45 to do lifting motion, the shielding bridge 3 is arranged on the slide rail component 45 in a sliding way so as to do horizontal motion on the slide rail component 45, two connecting interfaces 34 and a manual sampling interface are arranged on the shielding bridge 3, under the action of the lifting component and the slide rail component 45, the shielding bridge 3 is lifted to be at the height level with the TMI plate 2, so that the two connecting interfaces 34 can be respectively connected with the sampling pipeline joint 20 and the measuring instrument joint 22, to communicate the sampling line with the measuring instrument.

In this embodiment, the shielding bridge 3 is arranged on the slide rail assembly 45, the slide rail assembly 45 is driven by the lifting assembly to move up and down, the shielding bridge 3 can be lifted to the position highly aligned with the connector on the TMI board 2, the connection interface 34 on the shielding bridge 3 can be quickly and accurately connected with the connector on the TMI board 2, the operation difficulty is reduced, and the contact time between the operator and the radioactive substance is reduced.

As shown in fig. 1, the glove box 1 is closed and communicates with a negative pressure ventilation or exhaust gas treatment system to establish a negative pressure state inside the glove box 1. The TMI panel 2 includes a panel that communicates with the terminals of each sampling line and measuring instrument line in the glove box 1.

In this embodiment, the TMI board 2 is further provided with a flush line connector 21 on the panel, one of the two connection interfaces 34 of the shielding bridge 3 is connected to the measuring instrument connector 22, and the other is connected to the sampling line connector 20 or the flush line connector 21, when the two connection interfaces 34 are respectively connected to the sampling line connector 20 and the measuring instrument connector 22, the sample in the sampling line enters the measuring instrument through the shielding bridge 3, so that the content of each element in the sample can be measured and analyzed. The flushing line joint 21 comprises a joint for flushing with demineralized water and purging with nitrogen, and when the two connecting interfaces 34 are respectively connected with the flushing line joint 21 and the measuring instrument joint 22, the flushing line joint 21 is used for flushing and purging the measuring instrument pipeline.

As shown in fig. 3a and 3b, the meter connector 22 is arranged in the middle of the panel, and the sampling line connector 20 and the flushing line connector 21 are arranged on the circumference of the circle with the center of the meter connector 22, and the distance from the meter connector 22 is kept within a certain tolerance range, so that the connectors on the TMI board 2 can be connected with the connecting interfaces 34 on the shielding bridge 3.

Optionally, the sampling line joint 20 and the flushing line joint 21 are both provided with two, the two sampling line joints 20 are respectively used for circulating different samples, and the two flushing line joints 21 are respectively joints for flushing the desalted water and purging the nitrogen.

Optionally, the sampling line connector 20, the measuring instrument connector 22, and the flushing line connector 21 are all quick connectors, each quick connector is provided with a self-locking device, and correspondingly, the connection interface 34 of the shielding bridge 3 is also provided with a quick connector. The connection interface 34 of the shielding bridge 3 is connected with the connector on the TMI board 2 through a quick connector, which can effectively improve the connection efficiency.

As shown in fig. 4a, 4b, 5a, and 5b, the shielding bridge 3 includes a shielding cover 31 and a connecting unit, the shielding cover 31 is made of lead, and covers the connecting unit, and a pressing plate 32 for connecting and releasing with the quick connector is disposed on the shielding cover 31.

As shown in fig. 4c and 4d, the connection unit includes a connection tube 36, and the quick connector on the connection interface 34 is connected to the connection tube 36 through a ball 33, and the ball 33 can make the quick connector perform a certain displacement offset to overcome the necessary tolerance to successfully connect the shielding bridge 3 and the TMI board 2.

Alternatively, as shown in fig. 5c and 5d, the quick connector on the connection interface 34 can be connected to the communication pipe 36 through a bellows 37, and similarly, the bellows 37 also has the function of making the quick connector perform a certain displacement offset, so as to ensure that the connection interface 34 can overcome the necessary tolerance to successfully connect the shield bridge 3 and the TMI board 2.

Specifically, the two connection interfaces 34 are disposed on the same side of the shielding bridge 3 close to the TMI board 2, and are located at two ends of the communication pipe 36.

As shown in fig. 4c, 4d, 5c and 5d, in the present embodiment, a manual sampling interface is provided on a side of the connecting rod 48 away from the connection interface 34, a rubber plug 35 is installed in the manual sampling interface, the rubber plug 35 is used for sealing the sample in the communication tube 36, and when manual sampling is required, the rubber plug 35 is pierced by a syringe, so as to extract the sample.

Alternatively, the manual sampling port includes a sampling tube 382 and a push sampling valve 38, a valve 381 is provided on the push sampling valve 38, the sampling tube 382 communicates with the communication pipe 36, sampling is controlled by pushing the sampling valve 38, and the push sampling valve 38 is opened after the valve 381 is pushed, so that a sample is taken from the sampling tube 382. Optionally, the push-to-sample valve 38 is a needle or stop valve with a self-locking mechanism that ensures that the valve 381 closes automatically when the valve 381 is released.

As shown in fig. 6a, 6b, 7a, and 7b, in this embodiment, the lifting assembly includes a lifting base 41, a gas spring rod 42, a driving rod 43, a synchronization rod 44, and a connection rod 48, the lifting base 41 is disposed below the TMI board 2, the gas spring rod 42 is vertically disposed on the lifting base 41, the synchronization rod 44 is horizontally disposed on the lifting base 41, the driving rod 43 is in an obtuse L shape and includes a first end and a second end, a joint of the first end and the second end is sleeved on the synchronization rod 44, the first end is fixedly connected to a free end of the gas spring rod 42, the second end is rotatably connected to the slide rail assembly 45, the connection rod 48 is disposed in parallel with the second end of the driving rod 43, two ends of the connection rod 48 are respectively hinged to the lifting base 41 and the slide rail assembly 45, under the pushing of the gas spring rod 42, the second end of the driving rod 43 and the connection rod 48 respectively rotate around their fixed ends, and are always kept parallel, thereby driving the sliding rail assembly 45 to keep vertical and do lifting movement.

In this embodiment, the lifting unit adopts two sets ofly, and two sets of lifting unit symmetries set up the both sides at sliding rail set 45, and two sets of lifting unit difference fixed mounting are at the both ends of TMI board 2, and the actuating lever 43 and the connecting rod 48 of both sides are connected with lifting base 41 and sliding rail set 45 respectively.

As shown in fig. 7b, in the present embodiment, the slide rail assembly 45 includes a guide rail 47 and a slider 46, the guide rail 47 is disposed in a horizontal direction and extends in a direction close to the TMI board 2, the slider 46 is slidably disposed on the guide rail 47, and the shield bridge 3 is mounted on the slider 46. When the slide rail assembly 45 reaches a height corresponding to the position of the connector on the TMI board 2 under the driving of the lifting assembly, the slide block 46 starts to slide on the guide rail 47 in a direction toward the TMI board 2 until the interface on the shielding bridge 3 is completely butted with the connector on the TMI board.

As shown in fig. 2, the glove box 1 includes a box body, one side of the box body is a transparent panel 11, a hand hole 12 is formed on the transparent panel 11, a rubber glove 14 is hermetically mounted on the hand hole 12, and a gate 13 for the sampling container to enter and exit is further formed on the transparent panel 11.

In the embodiment, the glove box 1 is made of stainless steel by welding, the support mode is that the glove box is hung on a wall or supported by a bracket without obvious welding or sharp edges, the gradient of the bottom plate of the glove box 1 is 5mm/m, and the glove box 1 is convenient to drain water after being cleaned. The transparent panel 11 of the glove box 1 is made of transparent lead glass, and the inclination of the transparent lead glass is 10 degrees to the vertical direction.

As shown in fig. 7a, 7b, 8a, 8b, 9, and 10, the operation of the sampling device is as follows:

when the sliding rail assembly 45 and the shielding bridge 3 are at the initial positions, the sliding rail assembly and the shielding bridge are positioned at the bottom of the TMI board 2, the second end of the driving rod 43 and the connecting rod 48 are at the horizontal position, the gas spring rod 42 is at the compressed state, the operator operates through the hand hole 12, the free end of the gas spring rod 42 extends to drive the driving rod 43 to rotate, the second end of the driving rod 43 and the connecting rod 48 respectively rotate around the fixed end thereof, the second end of the driving rod 43 is always parallel to the connecting rod 48 during the rotation, so that the sliding rail assembly 45 can be lifted in a vertical state, when the second end of the driving rod 43 and the connecting rod 48 reach the vertical position, the slide rail assembly 45 is lifted to the highest position of movement, at which time, the connecting interface 34 on the shielding bridge 3 corresponds in position to the joint on the TMI board 2, the slider 46 then slides the shielding bridge 3 along the rail 47, close to the TMI board 2, until the connection interface 34 on the shielding bridge 3 is connected with the contact on the TMI board 2.

There are two kinds of connected modes shield bridge 3 and TMI board 2, the first is that shield bridge 3 is in when transferring the position, and shield bridge 3's upper end connection interface 34 is placed on slider 46 to be connected with measuring instrument joint 22, lower extreme connection interface 34 is connected with the sample pipeline joint 20 on the TMI board 2, and at this moment, shield bridge 3 can go up end connection interface 34 and carry out the rotation about as the centre of a circle, switches the sample source. The operator may extract the sample through the manual sampling interface.

The second is that when the shield bridge 3 is at the upper position, the lower end connection interface 34 of the shield bridge 3 is placed on the slide block 46 and connected with the measuring instrument joint 22, the upper end connection interface 34 is connected with the flushing pipeline joint 21 on the TMI board 2, and the shield bridge 3 can rotate left and right with the lower end connection interface 34 as the center, so as to select different cleaning modes.

Alternatively, the positions of the flushing line connector 21 and the sampling line connector 20 may be adjusted according to the actual situation.

According to the invention, the shielding bridge 3 and the TMI plate 2 are matched with the lifting assembly through the sliding rail assembly 45, so that the purpose of accurate and quick connection is achieved, the operation difficulty is low, and the contact time between an operator and radioactive substances is effectively reduced.

It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims

1. A sampling device is used for sampling and detecting samples after accidents and is characterized by comprising a TMI plate (2), a shielding bridge (3), a lifting sliding coupling mechanism (4) and a glove box (1), wherein the TMI plate (2), the shielding bridge (3) and the lifting sliding coupling mechanism (4) are all arranged in the glove box (1),

the TMI board (2) comprises a panel, a sampling pipeline joint (20) and a measuring instrument joint (22) are arranged on the panel,

the lifting sliding coupling mechanism (4) is arranged below the TMI plate (2) and comprises a lifting component and a sliding rail component (45),

the lifting component is connected with the sliding rail component (45) and is used for driving the sliding rail component (45) to do lifting movement,

the shielding bridge (3) is arranged on the sliding rail component (45) in a sliding way so as to move horizontally on the sliding rail component (45), two connecting interfaces (34) and a manual sampling interface are arranged on the shielding bridge (3),

under the action of the lifting assembly and the sliding rail assembly (45), the shielding bridge (3) is lifted to the height which is flush with the TMI board (2), so that the two connecting interfaces (34) can be respectively connected with the sampling pipeline joint (20) and the measuring instrument joint (22) to communicate a sampling pipeline and a measuring instrument.

2. The sampling device according to claim 1, characterized in that the face plate of the TMI plate (2) is further provided with a flush line connection (21), one of the two connection interfaces (34) being connected to the gauge connection (22) and the other being connected to the sampling line connection (20) or the flush line connection (21).

3. The sampling device according to claim 2, characterized in that the measuring instrument connector (22) is arranged in the middle of the panel, the sampling line connector (20) and the flushing line connector (21) are arranged on a circumference with the position of the measuring instrument connector (22) as the center, and the distance from the measuring instrument connector (22) is kept within a certain tolerance range, so as to ensure that the TMI board (2) can be connected with the connecting interface (34) on the shielding bridge (3).

4. A sampling device according to claim 3, characterized in that the sampling line connection (20), the measuring instrument connection (22), the flushing line connection (21) are quick connections,

correspondingly, a quick connector is arranged on the connecting interface (34) of the shielding bridge (3).

5. A sampling device according to any one of claims 1-4, characterized in that the shielding bridge (3) comprises a shielding cap (31) and a connection unit,

the shielding cover (31) covers the outside of the connecting unit, and a pressing plate (32) used for being connected with and disengaged from the quick connector is arranged on the shielding cover (31).

The connecting unit comprises a communicating pipe (36), and quick connectors on the connecting interfaces (34) are connected to the communicating pipe (36) through a ball head (33)/a corrugated pipe (37) respectively.

6. A sampling device according to any of claims 1-4, characterized in that a rubber stopper (35) is mounted in the manual sampling interface,

alternatively, a sampling tube (382) is provided in the manual sampling interface, a push sampling valve (38) is further attached to the manual sampling interface, and sampling can be performed from the sampling tube (382) by pushing the push sampling valve (38).

7. A sampling device according to any one of claims 1-4, characterized in that the lifting assembly comprises a lifting base (41), a gas spring rod (42), a drive rod (43), a synchronization rod (44), and a connecting rod (48),

the lifting base (41) is arranged below the TMI plate (2), the gas spring rod (42) is vertically arranged on the lifting base (41),

the synchronous rod (44) is horizontally arranged on the lifting base (41), the driving rod (43) is in an obtuse L shape and comprises a first end and a second end, the joint of the first end and the second end is sleeved on the synchronous rod (44), the first end is fixedly connected with the free end of the air spring rod (42), and the second end is rotatably connected with the sliding rail component (45),

the connecting rod (48) is arranged in parallel with the second end of the driving rod (43), the two ends of the connecting rod (48) are respectively hinged on the lifting base (41) and the sliding rail component (45),

under the pushing of the gas spring rod (42), the second end of the driving rod (43) and the synchronous rod (44) respectively rotate around the fixed ends of the driving rod and the synchronous rod, and are always kept parallel, so that the sliding rail assembly (45) is driven to keep a vertical state to do lifting movement.

8. The sampling device according to claim 7, characterized in that the lifting assemblies are arranged in two groups, and the two groups of lifting assemblies are symmetrically arranged on two sides of the slide rail assembly (45).

9. A sampling device according to claim 8, characterized in that the slide assembly (45) comprises a guide rail (47) and a slider (46),

the guide rail (47) is arranged along the horizontal direction and extends towards the direction close to the TMI board (2), the sliding block (46) is arranged on the guide rail (47) in a sliding mode, and the shielding bridge (3) is arranged on the sliding block (46).

10. A sampling device according to claim 1, characterized in that the glove box (1) comprises a box,

one side of the box body is a transparent panel (11), a hand hole (12) is formed in the transparent panel (11), gloves (14) are hermetically installed on the hand hole (12), and a gate (13) used for enabling a sampling container to enter and exit is further formed in the transparent panel (11).