A radiation detector with sampling function

Abstract

The present invention discloses a radiation detector with a sampling function, which relates to the field of radiation sampling technology. In order to solve the problem of accuracy, it specifically includes a traveling trolley, a lifting mechanism, a lifting seat, a fixed-depth sampling unit and a detection unit. The lifting seat is coupled to the top of the traveling trolley through the lifting mechanism and is used to control the lifting of the lifting seat relative to the traveling trolley. The fixed-depth sampling unit is arranged below the middle of the lifting seat and is used for fixed-depth sampling. The present invention sets the fixed-depth sampling unit as a combination of a main shaft, a cylinder shell, a spiral blade and a fan-shaped cone head. When the required depth is not reached, the fan-shaped cone heads move together and close together and act as a "drill bit" to assist drilling. After reaching the required depth, the fan-shaped cone head opens, and the soil sample is lifted into the cylinder shell as the cylinder shell descends and the spiral blade rotates, thereby effectively preventing soil samples at other depths from contaminating the soil sample at the target depth, thereby increasing the accuracy of subsequent detection.

Description

Technical Field

[0001] The present invention relates to the field of radiation sampling technology, and in particular to a radiation detector with a sampling function. Background Art

[0002] Environmental radiation detection refers to the process of measuring and evaluating radioactive substances or radiation sources in the surrounding environment. The general means of environmental radiation detection is to detect radiation indicators in the environmental soil.

[0003] After searching, the Chinese patent publication number CN222824057U discloses a soil radiation detection device, including a detection support frame, an auxiliary bearing fixedly connected to one side of the inner wall of the detection support frame, a main screw fixedly connected to the surface of the auxiliary bearing, adjustment components are provided on both sides of the lower surface of the detection support frame, an assembly box is provided at the lower end of the detection support frame, grooves are provided on both sides of the inner wall of the assembly box, and a monitoring sensor is provided inside the groove.

[0004] The above patent has the following shortcomings: when sampling soil at a certain depth, soil from other layers may be mixed into the sample during the drilling process, which may cause inaccurate results of the final radiation detection.

[0005] To this end, the present invention proposes a radiation detector with a sampling function. Summary of the Invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a radiation detector with a sampling function.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A radiation detector with a sampling function, comprising a traveling trolley, a lifting mechanism, a lifting seat, a fixed-depth sampling part and a detection part;

[0009] The lifting seat is coupled to the upper portion of the traveling trolley via a lifting mechanism and is used to control the lifting seat relative to the traveling trolley; the fixed depth sampling portion is provided below the middle portion of the lifting seat and is used for fixed depth sampling;

[0010] The detection unit is arranged on the top outer wall of the traveling trolley and receives the sample from the fixed depth sampling unit and then performs radiation detection;

[0011] The fixed-depth sampling portion includes a main shaft, a cylindrical shell and a spiral blade. The main shaft is coaxially connected to the inner wall of the cylindrical shell, the spiral blade is fixed to the outer wall of the main shaft, the bottom of the cylindrical shell is rotatably connected to a plurality of fan-shaped cone heads, and the plurality of fan-shaped cone heads form a complete conical structure. The inner wall of the cylindrical shell is slidably connected to a plurality of driving rods that slide along the axial direction, the end of the driving rod is rotatably connected to a connecting rod, and the other end of the connecting rod is rotatably connected to the inner wall of the fan-shaped cone head.

[0012] Preferably, the outer wall of the cylindrical shell is provided with a first soil-breaking tooth, and the outer wall of the fan-shaped cone head is provided with a second crushing tooth.

[0013] Furthermore: the first soil-breaking tooth is a spiral blade soil-breaking tooth.

[0014] On the basis of the above-mentioned scheme: the fixed-depth sampling part also includes a lifting plate and a synchronous telescopic device, the top outer wall of the cylinder shell is provided with a discharge port, the outer wall of the cylinder shell located on the outer side of the soil-breaking tooth is rotatably connected to the flow-converging shell, the lifting plate is slidably fitted on the top of the flow-converging shell through a guide rod, the synchronous telescopic device is fixed to the top outer wall of the lifting plate by bolts, and the telescopic end of the synchronous telescopic device is fixed to the top outer wall of the flow-converging shell by bolts.

[0015] A better solution among the above solutions is: the outer wall of the bottom of the lifting plate is rotatably connected to multiple planetary gears, the outer wall of the main shaft is fixed with a sun gear, the inner wall of the cylinder shell is provided with teeth and grooves, and the teeth, sun gear and planetary gears cooperate with each other.

[0016] As a further solution of the present invention: a limiting ring groove is provided at the bottom of the lifting plate, the top of the driving rod is limitedly engaged with the inner wall of the limiting ring groove, and the driving rod can only slide along the contour of the limiting ring groove relative to the limiting ring groove, and cannot move relative to each other along the length direction of the driving rod.

[0017] At the same time, the converging shell is fixed to the inner wall of the lifting seat, and the top outer wall of the lifting seat is fixed with a motor by bolts. The output shaft of the motor passes through the lifting seat and is matched with the outer wall of the cylinder shell through a gear set.

[0018] As a preferred embodiment of the present invention: the detection part includes a detection mechanism and a box body, the box body is fixed to the top outer wall of the traveling trolley, the detection mechanism is fixed to the top outer wall of the box body by bolts, and the probe of the detection mechanism extends through the interior of the box body.

[0019] At the same time, the upper side of one side of the box body is connected to the interior of the flow-gathering shell through a corrugated hose, and a discharge door is provided on the other side of the box body.

[0020] As a better solution of the present invention: the lifting mechanism includes two groups of electric sliders, scissor arms and fixed blocks, and each group of electric sliders, scissor arms and fixed blocks has two, wherein the two fixed blocks are respectively fixed to the opposite sides of the traveling trolley and the lifting seat, the two electric sliders are respectively slidably connected to the opposite sides of the traveling trolley and the lifting seat, the four ends of the two scissor arms are respectively rotatably connected to the two electric sliders and the fixed blocks, and the middle parts of the two scissor arms are rotatably connected through a hinged rod.

[0021] The beneficial effects of the present invention are:

[0022] 1. The present invention provides a fixed-depth sampling portion as a combination of a main shaft, a cylindrical shell, spiral blades, and a fan-shaped cone head. When the desired depth is not reached, the fan-shaped cone heads move together and close, acting as a "drill bit" to assist drilling. After reaching the desired depth, the fan-shaped cone heads open, and the soil sample is lifted into the interior of the cylindrical shell as the cylindrical shell descends and the spiral blades rotate. This effectively prevents soil samples at other depths from contaminating the soil sample at the target depth, thereby increasing the accuracy of subsequent detection.

[0023] 2. The present invention, by providing a first breaking tooth and a second crushing tooth, can, on the one hand, increase the drilling efficiency of the entire shell and reduce the descent resistance; on the other hand, the second crushing tooth can also reduce the opening resistance of the fan-shaped cone head when the shell rotates to break the soil, thereby increasing the practical reliability of the device.

[0024] 3. The present invention, by providing components such as a lifting plate, a converging shell, and a synchronous expander, and combining them with the arrangement of the tooth grooves, the sun gear, and the planetary gears, can control the contraction of the fan-shaped cone head and the stoppage of the main shaft and spiral blades in the non-sampling state and the opening of the fan-shaped cone head and the rotation of the main shaft and spiral blades driven by the cylinder shell in the sampling state by simply using the expansion and contraction of the synchronous expander, thereby achieving synchronous control. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a radiation detector with sampling function proposed by the present invention;

[0026] Figure 2 This is a schematic diagram of the local structure of the fixed-depth sampling part of a radiation detector with sampling function proposed by the present invention. Figure 1 ;

[0027] Figure 3 This is a schematic diagram of the local structure of the fixed-depth sampling part of a radiation detector with sampling function proposed by the present invention. Figure 2 ;

[0028] Figure 4 This is a schematic diagram of the fan-shaped cone head structure of a radiation detector with sampling function proposed by the present invention;

[0029] Figure 5This is a schematic structural diagram of the driving part of a radiation detector with sampling function proposed by the present invention;

[0030] Figure 6 This is a schematic diagram of the lifting mechanism structure of a radiation detector with sampling function proposed by the present invention;

[0031] Figure 7 This is a structural schematic diagram of the detection part of a radiation detector with sampling function proposed by the present invention.

[0032] In the figure: 1. Traveling trolley; 2. Lifting mechanism; 3. Lifting seat; 4. Fixed-depth sampling unit; 5. Detection unit; 6. Main shaft; 7. Cylinder shell; 8. Crushing tooth 1; 9. Spiral blade; 10. Driving rod; 11. Connecting rod; 12. Fan-shaped cone head; 13. Crushing tooth 2; 14. Lifting plate; 15. Guide rod; 16. Converging shell; 17. Tooth groove; 18. Discharge port; 19. Sun gear; 20. Planetary gear; 21. Synchronous expansion joint; 22. Limiting ring groove; 23. Electric slide; 24. Articulated rod; 25. Scissor arm; 26. Fixed block; 27. Motor; 28. Gear set; 29. ​​Corrugated hose; 30. Detection mechanism; 31. Discharge door; 32. Box body. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be further described in detail below in conjunction with specific implementation methods.

[0034] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0035] Example 1: A radiation detector with a sampling function, such as Figure 1-Figure 7 As shown, the system comprises a trolley 1, a lifting mechanism 2, a lifting seat 3, a fixed-depth sampling unit 4, and a detection unit 5. The lifting seat 3 is coupled to the top of the trolley 1 via the lifting mechanism 2 and is used to control the lifting of the lifting seat 3 relative to the trolley 1. The fixed-depth sampling unit 4 is located below the center of the lifting seat 3 and is used for fixed-depth sampling. The detection unit 5 is located on the top outer wall of the trolley 1 and receives samples from the fixed-depth sampling unit 4 and performs radiation detection.

[0036] The fixed-depth sampling portion 4 includes a main shaft 6, a cylindrical shell 7 and a spiral blade 9. The main shaft 6 is coaxially connected to the inner wall of the cylindrical shell 7, and the spiral blade 9 is fixed to the outer wall of the main shaft 6. The bottom of the cylindrical shell 7 is rotatably connected to a plurality of fan-shaped cone heads 12, and the plurality of fan-shaped cone heads 12 form a complete conical structure. The inner wall of the cylindrical shell 7 is slidably connected to a plurality of axially sliding drive rods 10, and the end of the drive rod 10 is rotatably connected to a connecting rod 11, and the other end of the connecting rod 11 is rotatably connected to the inner wall of the fan-shaped cone head 12.

[0037] In this embodiment, the specific type of the walking cart 1 is not limited. It can be a manually propelled walking cart. However, for radiation detection, when manual access is impossible, an electric or other driven cart, such as an AGV cart, can also be used. The above are all existing technologies, and those skilled in the art can choose according to actual needs. This embodiment does not make creative work on it, so it will not be elaborated.

[0038] When the device is in use, the walking trolley 1 is moved to the sampling location, and then the lifting seat 3 is controlled to descend by the lifting mechanism 2, and the fixed depth sampling part 4 is started synchronously. When the sampling depth is not reached, the driving rod 10 is in the upper position. At this time, the connecting rod 11 causes the multiple fan-shaped cone heads 12 to retract and merge inward. The multiple fan-shaped cone heads 12 together form a conical "drill bit". After reaching the required depth, the driving rod 10 descends. At this time, the cylinder shell 7 is still in a rotating state. Until the multiple fan-shaped cone heads 12 are opened, the lifting mechanism 2 continues to control the overall descent. During the descent, the main shaft 6 drives the spiral blade 9 to rotate for sampling. After the sampling is completed, the whole device can be raised.

[0039] The device, by setting the fixed-depth sampling part 4 as a combination of the main shaft 6, the cylindrical shell 7, the spiral blades 9 and the fan-shaped cone head 12, can, when the required depth is not reached, the fan-shaped cone heads 12 move together and close and act as a "drill bit" to assist drilling. After reaching the required depth, the fan-shaped cone head 12 opens, and the soil sample is lifted into the interior of the cylindrical shell 7 as the cylindrical shell 7 descends and the spiral blades 9 rotate, thereby effectively preventing soil samples at other depths from contaminating the soil sample at the target depth, thereby increasing the accuracy of subsequent detection.

[0040] In order to solve the problem of drilling efficiency; Figure 2 、 3 As shown, the outer wall of the cylindrical shell 7 is provided with a soil breaking tooth 1 8, and the outer wall of the fan-shaped cone head 12 is provided with a crushing tooth 2 13.

[0041] In this embodiment, the preferred breaking tooth 8 is a spiral blade breaking tooth, and the crushing tooth 13 is a diamond-shaped breaking tooth.

[0042] This device, by providing the soil-breaking tooth 1 8 and the crushing tooth 2 13, can, on the one hand, increase the drilling efficiency of the entire cylindrical shell 7 and reduce the descent resistance; on the other hand, the crushing tooth 2 13 can also reduce the opening resistance of the fan-shaped cone head 12 when breaking the soil as the cylindrical shell 7 rotates, thereby increasing the practical reliability of the device.

[0043] To solve the driver problem; Figure 5 As shown, the fixed-depth sampling part 4 also includes a lifting plate 14 and a synchronous telescope 21. The top outer wall of the cylinder shell 7 is provided with a discharge port 18. The outer wall of the cylinder shell 7 located outside the soil-breaking tooth 8 is rotatably connected to the flow-converging shell 16. The lifting plate 14 is slidably fitted on the top of the flow-converging shell 16 through a guide rod 15. The synchronous telescope 21 is fixed to the top outer wall of the lifting plate 14 by bolts, and the telescopic end of the synchronous telescope 21 is fixed to the top outer wall of the flow-converging shell 16 by bolts.

[0044] The bottom outer wall of the lifting plate 14 is rotatably connected to a plurality of planetary gears 20, the outer wall of the main shaft 6 is fixed with a sun gear 19, the inner wall of the cylindrical shell 7 is provided with a tooth groove 17, and the tooth groove 17, the sun gear 19 and the planetary gears 20 cooperate with each other.

[0045] A limiting ring groove 22 is provided at the bottom of the lifting plate 14, and the top of the driving rod 10 is limitedly fitted in the inner wall of the limiting ring groove 22, and the driving rod 10 can only slide along the contour of the limiting ring groove 22 relative to the limiting ring groove 22, and cannot move relative to each other along the length direction of the driving rod 10.

[0046] The converging shell 16 is fixed to the inner wall of the lifting seat 3, and the top outer wall of the lifting seat 3 is fixed with a motor 27 by bolts. The output shaft of the motor 27 passes through the lifting seat 3 and is driven by a gear set 28 to fit the outer wall of the cylinder shell 7.

[0047] During the process of drilling down or rising after sampling, the motor 27 is started, which drives the cylinder shell 7 to rotate through the gear set 28. However, at this time, the synchronous expander 21 is in the extended state, and the planetary gear 20 is not engaged between the sun gear 19 and the tooth groove 17. At the same time, the driving rod 10 is pulled up by the lifting disk 14 so that the multiple fan-shaped cone heads 12 are closed. When the required depth is reached, the synchronous expander 21 contracts, so that the distance between the lifting disk 14 and the cylinder shell 7 is reduced. At this time, the planetary gear 20 is engaged between the tooth groove 17 and the sun gear 19. The rotation of the cylinder shell 7 can drive the sun gear 19 to rotate through the planetary gear 20, thereby driving the main shaft 6 and the cylinder shell 7 to rotate in the opposite direction relative to the cylinder shell 7. At the same time, the driving rod 10 moves relative to the cylinder shell 7, so that the fan-shaped cone head 12 opens. After sampling, the sample is transported to the top of the inner cavity of the cylinder shell 7 by the spiral blade 9, and then discharged into the converging shell 16 through the discharge port 18.

[0048] This device, by setting up components such as a lifting plate 14, a focusing shell 16, and a synchronous expander 21, and combining the arrangement of the tooth groove 17, the sun gear 19, and the planetary gear 20, can control the contraction of the fan-shaped cone head 12 in the non-sampling state, the stoppage of the main shaft 6 and the spiral blade 9, and the opening of the fan-shaped cone head 12 in the sampling state, and the rotation of the main shaft 6 and the spiral blade 9 driven by the cylinder shell 7 by only using the expansion and contraction of the synchronous expander 21, thereby realizing synchronous control.

[0049] In order to solve the detection problem; Figure 7 As shown, the detection part 5 includes a detection mechanism 30 and a box 32. The box 32 is fixed to the top outer wall of the traveling trolley 1. The detection mechanism 30 is fixed to the top outer wall of the box 32 by bolts, and the probe of the detection mechanism 30 extends into the interior of the box 32. The upper side of the box 32 is connected to the interior of the converging shell 16 through a corrugated hose 29, and a discharge door 31 is provided on the other side of the box 32.

[0050] When the soil sample enters the collecting shell 16, it enters the interior of the box 32 along the corrugated hose 29, and then the detection mechanism 30 performs radiation detection on the soil sample. After the detection is completed, the material discharge door 31 can be opened to clean the soil sample.

[0051] In this embodiment, the specific type of the detection mechanism 30 is not limited. It is related to the radiation particles to be detected. For example, a flow injection analyzer can be used for uranium detection; a thermal ionization mass spectrometer or an accelerator mass spectrometer can be used for plutonium detection; a gamma spectrometer or an X-ray fluorescence spectrometer can be used for multi-nuclide joint detection. All of them are existing technologies, and this embodiment does not make any creative work on them, so they will not be described in detail.

[0052] When the present embodiment is in use, the walking trolley 1 is moved to the sampling location, and then the lifting seat 3 is controlled to descend by the lifting mechanism 2, and the fixed depth sampling part 4 is started synchronously. When the sampling depth is not reached, the driving rod 10 is in the upper position. At this time, the connecting rod 11 causes the multiple fan-shaped cone heads 12 to retract and merge inward. The multiple fan-shaped cone heads 12 together form a conical "drill bit". After the required depth is reached, the driving rod 10 descends. At this time, the cylinder shell 7 is still in a rotating state. Until the multiple fan-shaped cone heads 12 are opened, the lifting mechanism 2 continues to control the overall descent. During the descent, the main shaft 6 drives the spiral blade 9 to rotate for sampling. After the sampling is completed, the whole body can be raised. During the drilling or sampling completion and rising process, the motor 27 is started, which drives the cylinder shell 7 to rotate through the gear set 28, but at this time the synchronous retractor 21 is in an extended state, and the planetary gear 20 is not engaged with the planetary gear. The positive gear 19 and the tooth groove 17 are connected, and the driving rod 10 is pulled up by the lifting plate 14 so that the multiple fan-shaped cone heads 12 are closed. When the required depth is reached, the synchronous telescoping device 21 contracts, so that the distance between the lifting plate 14 and the cylinder shell 7 is reduced. At this time, the planetary gear 20 is engaged between the tooth groove 17 and the sun gear 19. The rotation of the cylinder shell 7 can drive the sun gear 19 to rotate through the planetary gear 20, thereby driving the main shaft 6 and the cylinder shell 7 to rotate in the opposite direction relative to the cylinder shell 7. At the same time, the driving rod 10 moves relative to the cylinder shell 7, so that the fan-shaped cone head 12 opens. After sampling, the sample is transported to the top of the inner cavity of the cylinder shell 7 by the spiral blade 9, and then discharged into the convergent shell 16 through the discharge port 18. When the sampled soil sample enters the convergent shell 16, it enters the interior of the box 32 along the corrugated hose 29, and then the detection mechanism 30 performs radiation detection on the soil sample. After the detection is completed, the discharge door 31 can be opened to clean the soil sample.

[0053] Example 2: A radiation detector with a sampling function, such as Figure 6 As shown, in order to solve the lifting problem; this embodiment makes the following improvements on the basis of Example 1: the lifting mechanism 2 includes two groups of electric sliders 23, scissor arms 25 and fixed blocks 26, and each group of electric sliders 23, scissor arms 25 and fixed blocks 26 is two, wherein the two fixed blocks 26 are respectively fixed to the opposite sides of the traveling trolley 1 and the lifting seat 3, and the two electric sliders 23 are respectively slidably connected to the opposite sides of the traveling trolley 1 and the lifting seat 3, and the four ends of the two scissor arms 25 are respectively rotatably connected to the two electric sliders 23 and the fixed blocks 26, and the middle parts of the two scissor arms 25 are rotatably connected through the hinge rod 24.

[0054] When this embodiment is in use, when the electric slider 23 slides along the traveling trolley 1 and the lifting seat 3, the distance between the traveling trolley 1 and the lifting seat 3 can be changed by rotating the two scissor arms 25, thereby realizing the lifting of the lifting seat 3 relative to the traveling trolley 1.

[0055] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A radiation detector with a sampling function, comprising a traveling trolley (1), a lifting mechanism (2), a lifting seat (3), a fixed-depth sampling portion (4) and a detection portion (5), characterized in that: The lifting seat (3) is coupled to the upper portion of the traveling trolley (1) via a lifting mechanism (2) and is used to control the lifting seat (3) to rise and fall relative to the traveling trolley (1); the fixed-depth sampling portion (4) is provided below the middle portion of the lifting seat (3) and is used for fixed-depth sampling; The detection part (5) is arranged on the top outer wall of the walking trolley (1) and receives the sample from the fixed depth sampling part (4) and then performs radiation detection; The fixed-depth sampling portion (4) comprises a main shaft (6), a cylindrical shell (7) and a spiral blade (9), wherein the main shaft (6) is coaxially connected to the inner wall of the cylindrical shell (7), the spiral blade (9) is fixed to the outer wall of the main shaft (6), the bottom of the cylindrical shell (7) is rotatably connected to a plurality of fan-shaped cone heads (12), and the plurality of fan-shaped cone heads (12) form a complete conical structure, the inner wall of the cylindrical shell (7) is slidably connected to a plurality of driving rods (10) that slide in the axial direction, the end of the driving rod (10) is rotatably connected to a connecting rod (11), and the other end of the connecting rod (11) is rotatably connected to the inner wall of the fan-shaped cone head (12); The fixed-depth sampling portion (4) further includes a lifting plate (14) and a synchronous telescopic device (21), a discharge port (18) is provided on the top outer wall of the cylinder shell (7), the outer wall of the cylinder shell (7) located outside the soil-breaking tooth (8) is rotatably connected to the flow-gathering shell (16), the lifting plate (14) is slidably fitted on the top of the flow-gathering shell (16) through a guide rod (15), the synchronous telescopic device (21) is fixed to the top outer wall of the lifting plate (14) by bolts, and the telescopic end of the synchronous telescopic device (21) is fixed to the top outer wall of the flow-gathering shell (16) by bolts; The outer wall of the bottom of the lifting plate (14) is rotatably connected to a plurality of planetary gears (20), the outer wall of the main shaft (6) is fixed with a sun gear (19), the inner wall of the cylindrical shell (7) is provided with a tooth groove (17), and the tooth groove (17), the sun gear (19), and the planetary gears (20) cooperate with each other; A limiting ring groove (22) is provided at the bottom of the lifting plate (14), and the top of the driving rod (10) is limitedly fitted in the inner wall of the limiting ring groove (22), and the driving rod (10) can only slide along the contour of the limiting ring groove (22) relative to the limiting ring groove (22) and cannot move relative to the driving rod (10) along the length direction; The converging shell (16) is fixed to the inner wall of the lifting seat (3), and the top outer wall of the lifting seat (3) is fixed with an electric motor (27) by bolts. The output shaft of the electric motor (27) passes through the lifting seat (3) and is then driven by a gear set (28) to engage with the outer wall of the cylindrical shell (7).

2. The radiation detector with sampling function according to claim 1, characterized in that: The outer wall of the cylindrical shell (7) is provided with a soil-breaking tooth (8), and the outer wall of the fan-shaped cone head (12) is provided with a crushing tooth (13).

3. The radiation detector with sampling function according to claim 2, characterized in that: The first earth-breaking tooth (8) is a spiral blade earth-breaking tooth.

4. The radiation detector with sampling function according to claim 1, characterized in that: The detection part (5) includes a detection mechanism (30) and a box (32), wherein the box (32) is fixed to the top outer wall of the traveling trolley (1), the detection mechanism (30) is fixed to the top outer wall of the box (32) by bolts, and a probe of the detection mechanism (30) extends through the interior of the box (32).

5. The radiation detector with sampling function according to claim 4, characterized in that: The upper side of one side of the box body (32) is connected to the interior of the flow-gathering shell (16) through a corrugated hose (29), and a discharge door (31) is provided on the other side of the box body (32).

6. The radiation detector with sampling function according to claim 1, characterized in that: The lifting mechanism (2) comprises two groups of electric sliders (23), scissor arms (25) and fixed blocks (26), each group of electric sliders (23), scissor arms (25) and fixed blocks (26) is two, wherein the two fixed blocks (26) are respectively fixed to the opposite sides of the traveling trolley (1) and the lifting seat (3), the two electric sliders (23) are respectively slidably connected to the opposite sides of the traveling trolley (1) and the lifting seat (3), the four ends of the two scissor arms (25) are respectively rotatably connected to the two electric sliders (23) and the fixed blocks (26), and the middle parts of the two scissor arms (25) are rotatably connected via a hinged rod (24).

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