Radiation shielding verification test device

Abstract

The invention provides a radiation shielding verification test device. The radiation shielding verification test device comprises a first frame body, a movable grabbing assembly, a second frame body and a placing table assembly, the movable grabbing assembly is movably connected with the first frame body, the movable grabbing assembly is used for grabbing a shielding piece and driving the shielding piece to move relative to the first frame body, and the second frame body is located on one side of the first frame body and used for clamping the shielding piece. An instrument placing area used for placing a radiation measurer is formed on the placing table assembly, and the placing table assembly can move relative to the second frame body. Through the arrangement, the process automation of the shielding verification test is higher, and compared with manual operation, the efficiency is higher, the error is smaller, and the accuracy of the test result is better.

Description

Technical Field

[0001] The present invention relates to the field of radiation protection technology, and in particular to a radiation shielding verification test device. Background Art

[0002] Reactor shielding design is an important part of reactor engineering design. In order to ensure the normal operation of instruments and equipment in the radiation field and the safety and health of workers, the reactor needs to be designed for radiation shielding. Due to the need to consider factors such as reactor-related performance and personnel radiation safety, the reactor shielding design must be designed to be safe enough to reduce the radiation field dose to an acceptable level to ensure personnel radiation safety and normal operation of equipment. At the same time, the shielding design cannot be overly conservative and the weight of the shielding body must be reduced as much as possible to ensure the relevant performance of the reactor. Therefore, the reactor shielding design has extremely high requirements for the accuracy and high precision of the shielding.

[0003] Reactor shielding design can be carried out through shielding calculation software and shielding verification tests. In the current shielding verification tests, the placement of the shielding body is usually carried out manually, and the location information of the radiation source, shielding body, and measuring device is also obtained by manual measurement. The test has a low degree of automation and low efficiency, and the error in the measurement of key information parameters is large, and the accuracy of the test results is poor. Summary of the invention

[0004] In order to accurately obtain the results of the shielding test and solve the problems existing in the existing shielding test technology, according to one aspect of the present invention, a radiation shielding verification test device is provided. The radiation shielding verification test device includes: a first frame; a mobile grabbing assembly, the mobile grabbing assembly is movably connected to the first frame, and the mobile grabbing assembly is used to grab the shielding member and drive the shielding member to move relative to the first frame; a second frame, the second frame is located on one side of the first frame; and a placement table assembly, the placement table assembly is formed with an instrument placement area for placing a radiation measuring device and the placement table assembly is movable relative to the second frame.

[0005] The radiation shielding verification test device provided by the present application grasps and moves the shielding member by moving the grasping assembly, and aligns the radiation measuring device with the shielding member through the placement table assembly movable relative to the second frame, and obtains the shielding effect of the shielding member at different positions and the shielding effect of the shielding member on different rays. The shielding verification test process is more automated, and compared with manual operation, it is more efficient, has less error, and has better accuracy of test results.

[0006] Exemplarily, a radiation shielding area and a shielding component placement area which are spaced apart from each other are provided in the first frame, and the movable grabbing assembly drives the shielding component to move the shielding component between the radiation shielding area and the shielding component placement area.

[0007] Exemplarily, a plurality of installation limiting grooves for installing shielding components are arranged along the first direction in the radiation shielding area.

[0008] Exemplarily, a plurality of placement limiting grooves for placing the shielding element are arranged along the first direction in the shielding element placement area.

[0009] Exemplarily, there are multiple shielding component placement areas, and the multiple shielding component placement areas are arranged along the second direction, and the second direction and the first direction meet a perpendicular condition.

[0010] Exemplarily, a first transverse guide rail is disposed on the first frame, the first transverse guide rail extends along the second direction and penetrates the radiation shielding area and the plurality of shielding component placement areas, and the movable grabbing assembly is slidably connected to the first transverse guide rail.

[0011] Exemplarily, the movable grasping assembly includes a movable member and a grasping member, wherein the movable member is slidably connected to the first transverse guide rail, the grasping member is connected to the movable member and the grasping member has a retractable clamping claw, and the clamping claw is used to grasp the shielding member.

[0012] Exemplarily, the moving member includes a first sliding base and a first lifting member, the first sliding base is slidably connected to the first transverse guide rail, and the first sliding base is provided with a first longitudinal guide rail extending along the first direction, the first lifting member includes a fixed part and a lifting part, the fixed part is slidably connected to the first longitudinal guide rail, the lifting part is connected to the grasping member to drive the grasping member to move in a third direction relative to the first frame, and the third direction meets the vertical condition with the first direction and the second direction.

[0013] Exemplarily, a second longitudinal guide rail is disposed on the second frame, the second longitudinal guide rail extends along the first direction, and the placement table assembly is slidably connected to the second longitudinal guide rail.

[0014] Exemplarily, the placement table assembly includes a second sliding base, a second lifting member and a placement table, the second sliding base is slidably connected to the second longitudinal guide rail, and the second sliding base is provided with a second transverse guide rail extending along the second direction, the second lifting member is slidably connected to the second transverse guide rail, the moving end of the second lifting member is connected to the placement table to drive the placement table to move in a third direction, the instrument placement area is formed at the top of the placement table, and any two of the third direction, the second direction and the first direction meet the vertical condition.

[0015] A series of simplified concepts are introduced in the summary of the invention, which will be further described in detail in the detailed description. The summary of the invention is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0016] The advantages and features of the present invention are described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following drawings of the present invention are used as part of the present invention for understanding the present invention. The embodiments of the present invention and their description are shown in the drawings to explain the principle of the present invention. In the drawings:

[0018] Figure 1 A perspective view of a radiation shielding verification test device according to an exemplary embodiment of the present invention;

[0019] Figure 2 for Figure 1 A partial enlarged view of part A;

[0020] Figure 3 is a perspective view of a mobile gripping assembly and a shielding member according to an exemplary embodiment of the present invention;

[0021] Figure 4 FIG. 4 is a perspective view of a second frame and a placement table assembly according to an exemplary embodiment of the present invention.

[0022] The above drawings include the following reference numerals:

[0023] 10. Radiation shielding verification test device; 100. First frame; 110. Radiation shielding area; 1110. Installation limit groove; 120. Shielding component placement area; 1210. Placement limit groove; 130. First transverse guide rail; 200. Mobile grabbing assembly; 210. Moving part; 2110. First sliding base; 2111. First longitudinal guide rail; 2120. First lifting part; 220. Grabbing part; 2210. Clamp; 300. Second frame; 310. Second longitudinal guide rail; 400. Placement table assembly; 410. Instrument placement area; 420. Second sliding base; 4210. Second transverse guide rail; 430. Second lifting part; 440. Placement table; 500. Shielding component. DETAILED DESCRIPTION

[0024] In the following description, a large amount of details are provided so that the present invention can be thoroughly understood. However, it will be appreciated by those skilled in the art that the following description only illustrates a preferred embodiment of the present invention by way of example, and the present invention can be implemented without one or more such details. In addition, in order to avoid confusion with the present invention, some technical features well known in the art are not described in detail.

[0025] In order to fully understand the embodiments of the present invention, detailed structures will be presented in the following description. Obviously, the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other embodiments.

[0026] The embodiment of the present invention provides a radiation shielding verification test device, which can be used in shielding verification experiments. Figure 1 The radiation shielding verification test device 10 may include a first frame 100, a mobile grab assembly 200, a second frame 300 and a placement table assembly 400. The mobile grab assembly 200 is movably connected to the first frame 100, and the mobile grab assembly 200 is used to grab the shielding member 500 and drive the shielding member 500 to move relative to the first frame 100. That is, after the mobile grab assembly 200 grabs the shielding member 500, the mobile grab assembly 200 drives the shielding member 500 to move together. The movement of the shielding member 500 between different positions can be achieved by setting the moving path of the mobile grab assembly 200. The second frame 300 is located on one side of the first frame 100. In actual work, the radiation source can be on the other side of the first frame 100. Specifically, the second frame 300 and the first frame 100 can be spaced apart, or can be adjacent or connected, or the first frame 100 and the second frame 300 can be two parts of the same frame group. An instrument placement area 410 may be formed on the placement table assembly 400 and the placement table assembly 400 is movable relative to the second frame 300. The instrument placement area 410 may be used to place a radiation measuring device. In other words, the radiation measuring device is movable relative to the second frame 300. The radiation measuring device includes but is not limited to a neutron dose rate meter, a neutron spectrometer, a gamma dose rate meter, and a gamma spectrometer. The instrument placement area 410 may be divided into a plurality of sub-areas, and correspondingly, a plurality of radiation measuring devices may be arranged in the instrument placement area 410.

[0027] The working principle of the radiation shielding verification test device 10 can be understood as follows: the radiation source, the shielding member 500 and the radiation measuring device are arranged in sequence, and the arrangement is achieved through the cooperation between the first frame 100, the mobile grabbing assembly 200, the second frame 300 and the placement table assembly 400. Among them, the mobile grabbing assembly 200 grabs and moves the shielding member 500 to a predetermined position (which can be understood as the radiation shielding area 110 below), and the shielding member 500 can shield the radiation of the radiation source to a certain extent. The radiation measuring device is located on the side of the shielding member 500 away from the radiation source, and the radiation amount is detected, so that the shielding effect of the shielding member 500, that is, part of the test results of the shielding verification test, can be known.

[0028] The placement table assembly 400 moves relative to the second frame 300, and the purposes may include the following three. First, the placement table assembly 400 drives the radiation meter located thereon to align the radiation meter with the shielding member 500. Second, the placement table assembly 400 drives the radiation meter located thereon, and the radiation meter can measure the radiation amount at different positions (which may be the center of the corresponding shielding member 500 and different positions outside the center), that is, to obtain the shielding effect of the shielding member 500 at different positions when the position of the radiation source shielding member 500 remains unchanged. Third, multiple radiation meters are placed in the placement area, and through the movement of the placement table assembly 400, different radiation meters are moved to designated positions in turn (the designated position may be the center of the corresponding shielding member 500 or other positions) to measure the radiation, so as to obtain the shielding effect of the shielding member 500 on different rays.

[0029] The radiation shielding verification test device 10 provided by the present application grasps and moves the shielding member 500 by moving the grasping assembly 200, and aligns the radiation measuring device with the shielding member 500 through the placement table assembly 400 that is movable relative to the second frame 300, and obtains the shielding effect of the shielding member 500 at different positions and the shielding effect of the shielding member 500 on different rays. The process of the shielding verification test is more automated, and compared with manual operation, it is more efficient, has less error, and has better accuracy of the test results.

[0030] For example, continue to refer to Figure 1 The first frame 100 may be provided with a radiation shielding area 110 and a shielding component placement area 120 that are spaced apart from each other. The mobile grabbing assembly 200 drives the shielding component 500 to move the shielding component 500 between the radiation shielding area 110 and the shielding component placement area 120. The shielding component 500 may be placed in the shielding component placement area 120. The mobile grabbing assembly 200 grabs the shielding component 500 and moves it, and installs the shielding component 500 in the radiation shielding area 110. The shielding component 500 located in the radiation shielding area 110 shields the radiation source, and the radiation measuring device in the instrument placement area 410 measures the radiation amount. In this way, the shielding component 500 can be moved between the radiation shielding area 110 and the shielding component placement area 120, and the degree of automation is better.

[0031] For example, refer to Figure 1, a plurality of mounting limit grooves 1110 for mounting shielding members 500 may be provided in the radiation shielding area 110 along the first direction XX. That is, a plurality of shielding members 500 may be installed in the mounting limit groove 1110. Among them, the first direction XX may be the width direction of the first frame 100, and the plurality of shielding members 500 are arranged along the first direction XX. In this way, the shielding effect under different shielding conditions (i.e., the number and specifications of the shielding members 500 are different) may be obtained by installing different numbers of shielding members 500 in the mounting limit groove 1110. In an embodiment not shown, one mounting limit groove may be provided in the radiation shielding area or no mounting limit groove may be provided, and the test may be performed only by moving shielding members of different specifications to the radiation shielding area.

[0032] For example, refer to Figure 1 , a plurality of placement limiting grooves 1210 for placing the shielding member 500 may be provided in the shielding member placement area 120 along the first direction XX. That is to say, a plurality of shielding members 500 may be provided in the shielding member placement area 120. Among them, the plurality of shielding members 500 may be shielding members 500 of the same specifications (such as thickness, material, etc.), or may be shielding members 500 of different specifications. The shielding member placement area 120 configured in this way can provide more shielding members 500 for selection, more matching and combination methods of the shielding members 500, and richer test results obtained in the shielding verification test, which can meet more test requirements.

[0033] For example, refer to Figure 1 , there can be multiple shielding component placement areas 120, and multiple shielding component placement areas 120 can be arranged along the second direction YY, and the second direction YY and the first direction XX meet the vertical condition. Among them, the second direction YY can be the length direction of the first frame 100. The setting of multiple shielding component placement areas 120 can further increase the number of shielding components 500 in the radiation shielding verification test device 10. In this way, when conducting a shielding verification test, there can be more ways to match the shielding components 500, making the test results richer. The shielding component placement areas 120 arranged along the second direction YY make more efficient use of the internal space of the first frame 100. Exemplarily, each shielding component placement area 120 can be corresponding to a shielding component 500 of a certain specification. In this way, shielding components 500 of different specifications can be grabbed by grabbing the shielding components 500 in different shielding component placement areas 120, and the operation process is more convenient.

[0034] Exemplarily, a portion of the plurality of shielding member placement areas 120 is located on one side of the radiation shielding area 110 and another portion is located on the other side of the radiation shielding area 110. Specifically, the plurality of shielding member placement areas 120 and the radiation shielding area 110 may be arranged along the second direction YY. Further, there may be four shielding member placement areas 120 and one radiation shielding area 110, and in the second direction YY, two shielding member placement areas 120 are respectively arranged on both sides of the radiation shielding area 110. In this way, it is more convenient to move the grabbing assembly 200 between the radiation shielding area 110 and the shielding member placement area 120.

[0035] For example, the first frame 100 may be provided with a first transverse guide rail 130, which may extend along the second direction YY and penetrate the radiation shielding area 110 and the plurality of shielding component placement areas 120, and the mobile grab assembly 200 may be slidably connected to the first transverse guide rail 130. In other words, the mobile grab assembly 200 may drive the shielding component 500 to move between the radiation shielding area 110 and the plurality of shielding component placement areas 120. With this arrangement, the moving trajectory of the mobile grab assembly 200 is more certain and efficient.

[0036] For example, in conjunction with reference Figure 1 , Figure 2 and Figure 3 The mobile grabbing assembly 200 may include a moving member 210 and a grabbing member 220, wherein the moving member 210 may be slidably connected to the first transverse guide rail 130, and the grabbing member 220 may be connected to the moving member 210 and the grabbing member 220 may have a retractable clamping claw 2210, and the clamping claw 2210 is used to grab the shielding member 500. The shielding member 500 may be provided with a bayonet, and the clamping claw 2210 is retracted to extend into or out of the bayonet to achieve grabbing or detaching from the shielding member 500. When it is necessary to move the shielding member 500 from the shielding member placement area 120 to the radiation shielding area 110, the moving member 210 drives the grabbing member 220 to move to the shielding member 500 in the shielding member placement area 120, and the clamping claw 2210 of the grabbing member 220 is clamped into the bayonet of the shielding member 500. After that, the moving member 210 drives the shielding member 500 to move to the radiation shielding area 110, and the clamping claw 2210 exits the bayonet, that is, the shielding member 500 is installed in the radiation shielding area 110. The mobile grabbing assembly 200 set in this way has a simple structure and high working efficiency. In an embodiment not shown, the mobile grabbing assembly can realize the grabbing of the shielding member by any other method.

[0037] For example, in conjunction with reference Figure 1 and Figure 2The moving member 210 may include a first sliding base 2110 and a first lifting member 2120. The first sliding base 2110 may be slidably connected to the first transverse guide rail 130, and the first sliding base 2110 may be provided with a first longitudinal guide rail 2111 extending along the first direction XX. The first lifting member 2120 may include a fixing portion and a lifting portion. The fixing portion may be slidably connected to the first longitudinal guide rail 2111. The lifting portion may be connected to the grabbing member 220 to drive the grabbing member 220 to move in the third direction ZZ relative to the first frame 100. The third direction ZZ satisfies the vertical condition with the first direction XX and the second direction YY. The third direction ZZ may be understood as the height direction of the first frame 100. In this way, the moving member 210 as a whole may move in the second direction YY. Inside the moving member 210 as a whole, the first lifting member 2120 may move in the first direction XX. Further, inside the first lifting member 2120, the lifting portion may move in the third direction ZZ. That is to say, the grabbing member 220 and the shielding member 500 together realize movement in the first direction XX, the second direction YY, and the third direction ZZ under the drive of the lifting part. The moving path range is larger, which can better meet the needs of the shielding verification test.

[0038] For example, in conjunction with reference Figure 1 and Figure 4 , a second longitudinal guide rail 310 may be provided on the second frame 300, the second longitudinal guide rail 310 may extend along the second direction YY and the placement table assembly 400 may be slidably connected to the second longitudinal guide rail 310. In this way, the placement table assembly 400 may move along the second direction YY. Correspondingly, the radiation measuring device located in the instrument placement area 410 may move along the second direction YY, which includes the measurement of the same radiation measuring device at different positions and the measurement of different radiation measuring devices at the same position, and the results of the shielding verification test are richer and meet more test requirements.

[0039] For example, continue to combine with reference Figure 1 and Figure 4, the placement table assembly 400 may include a second sliding base 420, a second lifting member 430 and a placement table 440, the second sliding base 420 is slidably connected to the second longitudinal guide rail 310, and the second sliding base 420 is provided with a second transverse guide rail 4210 extending along the second direction YY. The second lifting member 430 can be slidably connected to the second transverse guide rail 4210, and the moving end of the second lifting member 430 is connected to the placement table 440 to drive the placement table 440 to move in the third direction ZZ, and the instrument placement area 410 is formed on the top of the placement table 440, and any two of the third direction ZZ, the second direction YY and the first direction XX meet the vertical condition. In this way, the placement table assembly 400 as a whole can move in the first direction XX, and inside the placement table assembly 400 as a whole, the second lifting member 430 can move in the second direction YY, and further, the placement table 440 can move in the third direction ZZ. That is to say, the radiation measuring device in the instrument placement area 410 can be driven by the placement table 440 to move in the first direction XX, the second direction YY, and the third direction ZZ, and the range of movement paths is rich. It can be understood that during the shielding verification test, it is necessary to measure the shielding effect at different positions when the shielding member 500 remains unchanged, which involves the movement of the radiation measuring device at different positions. In this embodiment, with the cooperation of the placement table assembly 400 and the second frame 300, the radiation measuring device can move in three directions, which can better meet the needs of the shielding effect test experiment.

[0040] It should be noted that in the present application, the relative movement between the mobile grasping assembly 200 and the first frame 100, the relative movement between the first lifting member 2120 and the first sliding base 2110, the lifting movement inside the first lifting member 2120, the relative movement between the placement table assembly 400 and the second frame 300, the relative movement between the second lifting member 430 and the second sliding base 420, and the relative movement between the placement table 440 and the second sliding base 420, one or more of the above movements can be realized by a ball screw, a drive gear and a drive motor. Specifically, the output end of the drive motor is connected to a drive gear, the drive motor drives the drive gear to rotate, and the drive gear cooperates with the ball screw to move. Further, a guide rail can also be provided to make the moving process more stable. Exemplarily, one or more of the above movements can be completed by a rack, a drive gear and a drive motor. Exemplarily, one or more of the above movements can be controlled by a controller, and the movement is more precise. Furthermore, each guide rail may be provided with a corresponding limiter to further improve the precision of movement, that is, to further improve the accuracy of the test result. Exemplarily, the drive motor may be connected to a reducer.

[0041] It is understandable that the movement process of the radiation shielding verification test device 10, the radiation measuring device and the shielding member 500 provided in the present application are all completed by instrument control, and the various positioning positions involved can be more accurate than manual operation, which can reduce the influence of uncertainty in the test results. In addition, in the existing manually operated shielding effect test experiments, each time manual operation is involved, the radiation intensity of the radiation source is required to be lower than a certain value, and the radiation source is raised and lowered multiple times, which will undoubtedly affect the efficiency of the test. In the present application, the radiation shielding verification test device 10 does not require manual operation during the working process, which improves the efficiency of the test.

[0042] Exemplarily, the operation process of the radiation shielding verification test device 10 can be as follows: install multiple radiation meters into the instrument placement area 410; control the mobile grabbing assembly 200 to grab shielding components 500 of corresponding specifications and quantity from the shielding component placement area 120 and install them into the radiation shielding area 110; control the placement table assembly 400 to move so that the first radiation meter is centered with the shielding component 500, and the first radiation meter measures the radiation amount at the centered position; control the placement table assembly 400 to move to obtain the radiation amount at other positions; control the placement table assembly 400 to move so that the second radiation meter is centered with the shielding component 500, and the second radiation meter measures the radiation amount at the centered position; control the placement table assembly 400 to move to obtain the radiation amount at other positions; and then perform measurements on the third, fourth, and up to the Nth radiation meter, that is, to achieve the measurement of various radiation parameters at various positions when the shielding component 500 remains unchanged. It is understandable that the shielding members 500 of different numbers and specifications can be grabbed by the mobile grabbing assembly 200 and installed in the radiation shielding area 110 to perform radiation measurement, which will not be described in detail here.

[0043] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by directional words such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "vertical", "horizontal", "top", "bottom", etc. is usually based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside" and "outside" refer to the inside and outside relative to the contour of each component itself.

[0044] For ease of description, regional relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the regional positional relationship between one or more components or features shown in the figure and other components or features. It should be understood that regional relative terms include not only the orientation of the components as described in the figure, but also different orientations in use or operation. For example, if the components in the accompanying drawings are inverted as a whole, the components "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Therefore, the exemplary term "above" may include both "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this article is intended to include all of these situations.

[0045] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, parts, components and / or combinations thereof.

[0046] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0047] The present invention has been described by the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the present invention to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the present invention is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope of the protection claimed by the present invention. The protection scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A radiation shielding verification test device, characterized in that: include: The first frame; A mobile grabbing assembly, the mobile grabbing assembly is movably connected to the first frame, and the mobile grabbing assembly is used to grab the shielding member and drive the shielding member to move relative to the first frame; a second frame, the second frame being located on one side of the first frame; as well as A placement table assembly is formed with an instrument placement area for placing the radiation measuring device and the placement table assembly is movable relative to the second frame.

2. The radiation shielding verification test device according to claim 1, characterized in that: The first frame is provided with a radiation shielding area and a shielding component placement area which are spaced apart from each other, and the movable grabbing assembly drives the shielding component to move the shielding component between the radiation shielding area and the shielding component placement area.

3. The radiation shielding verification test device according to claim 2, characterized in that: A plurality of installation limiting grooves for installing the shielding component are arranged along a first direction in the radiation shielding area.

4. The radiation shielding verification test device according to claim 2, characterized in that: A plurality of placement limiting grooves for placing the shielding element are arranged along a first direction in the shielding element placement area.

5. The radiation shielding verification test device according to claim 4, characterized in that: There are a plurality of shielding component placement areas, and the plurality of shielding component placement areas are arranged along a second direction, and the second direction and the first direction meet a perpendicular condition.

6. The radiation shielding verification test device according to claim 5, characterized in that: The first frame is provided with a first transverse guide rail, which extends along the second direction and passes through the radiation shielding area and the plurality of shielding component placement areas, and the movable grabbing assembly is slidably connected to the first transverse guide rail.

7. The radiation shielding verification test device according to claim 6, characterized in that: The movable grabbing assembly comprises a movable member and a grabbing member, wherein the movable member is slidably connected to the first transverse guide rail, the grabbing member is connected to the movable member and has a retractable clamping claw, and the clamping claw is used to grab the shielding member.

8. The radiation shielding verification test device according to claim 7, characterized in that: The moving member includes a first sliding base and a first lifting member, the first sliding base is slidably connected to the first transverse guide rail, and the first sliding base is provided with a first longitudinal guide rail extending along the first direction, The first lifting member includes a fixed portion and a lifting portion, the fixed portion is slidably connected to the first longitudinal guide rail, and the lifting portion is connected to the grabbing member to drive the grabbing member to move in a third direction relative to the first frame, and the third direction meets the vertical condition with the first direction and the second direction.

9. The radiation shielding verification test device according to claim 1, characterized in that: The second frame is provided with a second longitudinal guide rail, the second longitudinal guide rail extends along a first direction and the placement table assembly is slidably connected to the second longitudinal guide rail.

10. The radiation shielding verification test device according to claim 9, characterized in that: The placement table assembly includes a second sliding base, a second lifting member and a placement table, the second sliding base is slidably connected to the second longitudinal guide rail, and the second sliding base is provided with a second transverse guide rail extending along the second direction, The second lifting member is slidably connected to the second transverse guide rail, and the moving end of the second lifting member is connected to the placement table to drive the placement table to move in a third direction. The instrument placement area is formed on the top of the placement table, and any two of the third direction, the second direction and the first direction meet the vertical condition.

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