CN218826220U

CN218826220U - Activity detects with radiation protection shielded cell

Info

Publication number: CN218826220U
Application number: CN202223425994.0U
Authority: CN
Inventors: 崔杰; 张磊; 杨卫兵
Original assignee: Taiyuan Atomic High Tech Pharmaceutical Co ltd
Current assignee: Taiyuan Atomic High Tech Pharmaceutical Co ltd
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-04-07
Anticipated expiration: 2032-12-19

Abstract

The utility model relates to a radiation protection shielding case for activity detection, which relates to the technical field of radiation protection and comprises a cabinet body, wherein the cabinet body is a hollow shell with one side open, a partition board is fixedly arranged in the cabinet body, a first accommodating cavity is formed between the partition board and the top of the cabinet body, a second accommodating cavity is formed between the partition board and the bottom of the cabinet body, a shielding component is arranged on the cabinet body, and the shielding component comprises a shielding part which is arranged in the first accommodating cavity and used for shielding rays and an observation part which is arranged at the top of the cabinet body and is convenient for activity measurement operation; the observation piece includes with the cabinet body rotates the installing frame of connecting and installs in the installing frame with installing frame fixed connection's observation board. This application uses the ray in the shielding testing process through the cooperation of shielding part and observation piece, reduces the radiation injury to the operator among the radioactive substance measurement operation process.

Description

Activity detects with radiation protection shielded cell

Technical Field

The application relates to the technical field of radiation protection, in particular to a radiation protection shielding box for activity detection.

Background

The ray that produces can cause radiation injury to operating personnel among the radioactive material activity measurement process, consequently, when measuring radioactive material, will detect and place in the shielded cell of protecting against radiation with the activity meter measuring well to the radiation is shielded to protect operating personnel.

At present, the cabinet body is drawn together to radiation protection shielding case commonly used, and the cabinet body is one side open-ended hollow cuboid, and the opening part of the cabinet body is provided with the cabinet door, fixes being provided with the shielding layer on the inner wall of the cabinet body, and the bottom of the cabinet body is fixed and is provided with the support. In the use, will detect and place at the cabinet internal with activity measurement well, under the effect of shielding layer, can avoid the radiation to spread the external world and cause the injury to the operator.

Aiming at the related technologies, the inventor thinks that the activity measuring well for detection is placed in the cabinet body, but when the activity measuring operation of radioactive substances is carried out, the cabinet door needs to be opened for operation, so that the rays generated in the measurement process of the radioactive substances cause radiation damage to operators.

SUMMERY OF THE UTILITY MODEL

In order to protect operating personnel to reduce radiation injury, this application provides a radiation protection shielding case is used in activity detection.

The application provides a radiation protection shielding case for activity detection adopts following technical scheme:

an anti-radiation shielding box for activity detection comprises a cabinet body, wherein the cabinet body is a hollow shell with an opening at one side, an isolation plate is fixedly arranged in the cabinet body, a first accommodating cavity is formed between the isolation plate and the top of the cabinet body, a second accommodating cavity is formed between the isolation plate and the bottom of the cabinet body, a shielding assembly is arranged on the cabinet body, and the shielding assembly comprises a shielding part which is arranged in the first accommodating cavity and used for shielding rays and an observation part which is arranged at the top of the cabinet body and used for facilitating activity measurement operation; the observation piece includes with the cabinet body rotates the installing frame of connecting and installs in the installing frame with installing frame fixed connection's observation board.

Through adopting above-mentioned technical scheme, first chamber and the second of holding holds the chamber and all is used for depositing laboratory paraphernalia, and the shielding subassembly is used for forming the shielding to the ray, reduces operating personnel's radiation injury, and wherein, the shielding is installed and is held the intracavity first, shields the ray among the measuring device, and the observation panel has the radiation protection function, also can form the protection to the operator, reduces the radiation injury, simultaneously, the radioactive substance activity measurement operation of also being convenient for. The shielding piece and the observation piece are matched for use, so that rays can be shielded in the operation process of an operator, the radiation damage to the operator in the measurement operation process of radioactive substances is reduced, and the body health of the operator is facilitated.

Optionally, a moving groove is formed in the cabinet body, a fixing assembly for fixing the observation plate is arranged on the mounting frame, the fixing assembly includes a moving block which is embedded in the moving groove and is slidably connected with the moving groove, and a connecting pipe hinged to the moving block, an airbag is fixedly arranged on the moving block, and the connecting pipe is hinged to the mounting frame; the mounting frame is provided with a telescopic piece for filling gas into the air bag and a conveying piece for conveying gas.

Through adopting above-mentioned technical scheme, the installing frame rotates with the cabinet body to be connected, can adjust the angle of observation piece according to operator's height, and the observation frame is at rotatory in-process, and the movable block takes place to slide along the direction of shifting chute, when rotatory during the angle, carries the piece to fill the gas in the gasbag, the increase in size of gasbag, and the lateral wall of shifting chute forms the extrusion to the gasbag, and the gasbag takes place deformation and acts on the lateral wall of shifting chute, has improved the frictional force between gasbag and the shifting chute lateral wall, makes the movable block fix in the shifting chute to fixed observation board avoids the observation board to take place to rotate.

Optionally, a matching groove is formed in the mounting frame, the telescopic piece comprises a fixed pipe fixedly connected with the bottom of the matching groove and a sliding rod arranged on the fixed pipe in a penetrating mode and slidably connected with the fixed pipe, the conveying piece comprises a conveying pipe and gas distributing pipes, the number of the gas distributing pipes is the same as that of the moving blocks, the gas distributing pipes are communicated with the conveying pipe, the gas distributing pipes are arranged in the connecting pipe in a penetrating mode, one end of each gas distributing pipe is communicated with the air bag, and the conveying pipe is communicated with the fixed pipe.

By adopting the technical scheme, the matching groove is used for installing the telescopic piece, the sliding rod moves towards the direction close to the bottom of the fixed pipe, and the sliding rod extrudes the gas in the fixed pipe, so that the gas in the fixed pipe enters the air bag along the conveying pipe and the gas distribution pipe, the volume of the air bag is increased, and the observation plate is fixed; when the slide bar moved to the direction of keeping away from fixed socle portion, gas in the gasbag flowed into in to the fixed pipe, made the volume of gasbag diminish to make the sliding block take place to remove along the direction of sliding tray, easy operation is convenient.

Optionally, a yielding groove is formed in the side wall of the matching groove, a first positioning groove and a second positioning groove which are matched with the yielding groove in use are formed in the sliding rod, a limiting component for limiting the sliding rod to move is arranged in the yielding groove, and the limiting component comprises a spring and a clamping block fixedly connected with the spring.

By adopting the technical scheme, the limiting assembly limits the sliding rod to move along the inner wall of the fixed pipe, when the clamping block is embedded in the first positioning groove, no gas is filled in the air bag, and the moving block can move along the direction of the moving groove; when the fixture block is embedded in the second positioning groove, the air bag is filled with air, so that the moving block is fixed, the moving block is prevented from moving, and the limiting assembly is convenient to rotate and fix the observation plate.

Optionally, the shielding part include with cabinet body fixed connection's protective housing, the protective housing is one side open-ended hollow shell, be provided with the installation piece on the protective housing, set up the holding tank of depositing activity meter measuring well on the installation piece, the top of the cabinet body seted up with the just right groove of accomodating of holding tank.

Through adopting above-mentioned technical scheme, the activity meter measuring well can produce the radiation in the use, and the shielding part is from all around to the lateral wall and the bottom shielding radiation of activity meter measuring well, avoids the radiation to cause the radiation influence in the operation.

Optionally, a hand basket for placing the activity meter measurement well in the receiving slot is also included.

Through adopting above-mentioned technical scheme, the operator places the activity meter measuring well on hand-held basket, places the activity meter measuring well in the holding tank through hand-held basket, and easy operation is convenient.

Optionally, a sliding groove is formed in the hand basket, and a sliding block which is embedded in the sliding groove and is connected with the sliding groove in a sliding mode is fixedly arranged on the side wall of the accommodating groove.

Through adopting above-mentioned technical scheme, the sliding block uses with the cooperation of sliding tray and can avoid hand basket to take place the rotation when removing to holding tank bottom direction, causes the mouth that charges of activity meter measuring well and the hole dislocation that charges on the cabinet body, influences the normal use of activity meter measuring well.

Optionally, the hand basket includes the hand (hold), set up on the cabinet body and hold the mounting groove of hand (hold), the mounting groove with accomodate the coaxial seting up in groove.

Through adopting above-mentioned technical scheme, the operator mentions hand-basket through the hand (hold), and when hand-basket was located the holding tank, the hand (hold) was located the mounting groove, took out the time with hand-basket when needs, rotated hand (hold) and upwards moved, was convenient for with taking out of hand-basket.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the shielding piece and the observation piece are matched for use, so that rays can be shielded in the operation process of an operator, the radiation damage to the operator in the measurement operation process of radioactive substances is reduced, and the physical health of the operator is facilitated;

2. the fixing assembly is used for fixing the observation plate, the observation plate is prevented from rotating, after the height of an operator adjusts the angle of the observation piece, the conveying piece fills gas in the gas bag, the volume of the gas bag is increased, the side wall of the moving groove extrudes the gas bag, the gas bag deforms and acts on the side wall of the moving groove, the friction force between the gas bag and the side wall of the moving groove is improved, the moving block is fixed in the moving groove, and therefore the observation plate is fixed;

3. the use of hand-held basket is convenient for place the activity meter measuring well in the holding tank or take out from holding the inslot, and easy operation is convenient.

Drawings

Fig. 1 is a schematic structural view of a radiation-proof shielding box for activity detection according to an embodiment of the present application;

fig. 2 is a sectional view of a radiation-proof shield case for activity detection according to an embodiment of the present application;

fig. 3 is a cross-sectional view of an exploded view of a radiation-proof shield box for activity detection according to an embodiment of the present application;

FIG. 4 is an enlarged view of the embodiment of the present application at A in FIG. 3;

FIG. 5 is a cross-sectional view of an embodiment of the present application showing a securing assembly;

FIG. 6 is an enlarged view of the embodiment of the present application at B in FIG. 5;

FIG. 7 is an enlarged view of FIG. 5 at C;

FIG. 8 is an enlarged view of the embodiment of the present application at D in FIG. 5;

fig. 9 is a schematic structural view of a slide bar according to an embodiment of the present application.

Description of reference numerals: 1. a cabinet body; 11. a separator plate; 12. a first accommodating chamber; 13. a second accommodating cavity; 14. a receiving groove; 15. a moving groove; 16. mounting grooves; 2. a shielding assembly; 21. a shield; 211. a protective box; 2111. a storage tank; 212. mounting blocks; 2121. accommodating a tank; 22. an observation member; 221. installing a frame; 2211. a mating groove; 2212. a yielding groove; 222. an observation plate; 3. a fixing assembly; 31. a moving block; 32. a connecting pipe; 33. an air bag; 34. a telescoping member; 341. a fixed tube; 342. a slide bar; 3421. a first positioning groove; 3422. a second positioning groove; 35. a conveying member; 351. a delivery pipe; 352. a gas distributing pipe; 4. a limiting component; 41. a clamping block; 42. a spring; 5. a hand basket; 51. a tray; 52. a clamping plate; 521. a sliding groove; 53. a slider; 54. and (4) carrying out handle.

Detailed Description

The present application is described in further detail below with reference to figures 1-9.

The embodiment of the application discloses activity detects with protecting against radiation shielded cell. Referring to fig. 1 and 2, an activity detects with radiation protection shielding case includes the cabinet body 1, and the cabinet body 1 is the hollow cuboid of one side opening, is provided with division board 11 in the cabinet body 1, forms the first chamber 12 that holds between division board 11 and the cabinet body 1 top, forms the second between division board 11 and the cabinet body 1 bottom and holds chamber 13, is provided with the shielding component 2 that is used for shielding radiation on the cabinet body 1.

The cabinet body 1 and the division board 11 all adopt stainless steel material, and the shape of division board 11 is the cuboid, and division board 11 is the horizontal direction, and the lateral wall of division board 11 passes through welding mode fixed connection with 1 inner wall of the cabinet body, and division board 11 is located the lower part of solid. The partition board 11 forms a first accommodating cavity 12 and a second accommodating cavity 13 in the cabinet body 1, and can be used for storing articles such as laboratory equipment and laboratory medicines.

Referring to fig. 3 and 4, the shielding assembly 2 includes a shielding member 21 disposed in the first accommodating cavity 12 for shielding rays and a viewing member 22 disposed at the top of the cabinet 1 for facilitating the activity measuring operation of the radioactive substance. The shielding member 21 comprises a protective box 211 and a mounting block 212, wherein the protective box 211 and the mounting block 212 are made of lead plates; the protection box 211 is a hollow cuboid with an opening on the side surface, the protection box 211 is positioned in the first accommodating cavity 12, the side wall and the top of the protection box 211 are fixedly connected with the inner wall of the cabinet body 1 in a gluing mode, the bottom of the protection box 211 is fixedly connected with the top of the isolation plate 11 in a gluing mode, and a storage groove 2111 for storing an activity meter measuring well is formed in the top of the protection box 211; the cross-sectional shape of installation piece 212 is the cuboid, and installation piece 212 wears to establish in protective housing 211 and passes through sticky mode fixed connection with protective housing 211's inside. The top of the mounting block 212 is provided with an accommodating groove 2121 for accommodating the activity meter measuring well, the sectional shape of the accommodating groove 2121 is circular, the diameter of the accommodating groove 2121 is equal to that of the accommodating groove 2111, the top of the cabinet 1 is provided with an accommodating groove 14 opposite to the accommodating groove 2121, the accommodating groove 14 penetrates from the outer wall of the cabinet 1 to the inner wall of the cabinet 1, the sectional shape of the accommodating groove 14 is circular, and the diameter of the accommodating groove 14 is the same as that of the accommodating groove 2121. When the device is used, the activity meter measuring well is placed in the accommodating groove 14, the shielding piece 21 is made of lead plate materials, radiation generated in the operation process of the activity meter measuring well can be shielded, radiation damage to operators is reduced, and the health of the operators is protected.

Place the in-process at holding tank 2121 with the activity meter measurement well, adopt hand basket 5 to place the activity meter measurement well in holding tank 2121, hand basket 5 includes tray 51 and two grip blocks 52, and grip block 52 all is vertical direction setting, is parallel to each other between the grip block 52, and grip block 52's bottom and tray 51 pass through welding mode fixed connection. All seted up sliding tray 521 on the lateral wall of grip block 52, sliding tray 521 is seted up to grip block 52's top from grip block 52's top, it inlays the sliding tray 521 in and with sliding tray 521 sliding connection's sliding block 53 to be provided with on the lateral wall of accomodating groove 14, sliding block 53 and sliding tray 521 one-to-one, sliding block 53 passes through sticky mode fixed connection with installation piece 212, sliding block 53 uses the cooperation that can avoid hand basket 5 to take place rotatoryly when removing to holding tank 2121 bottom direction, cause the charging hole dislocation on the charging mouth of activity meter measuring well and the cabinet body 1, influence the normal use of activity meter measuring well.

The hand basket 5 further comprises a handle 54, two ends of the handle 54 are rotatably connected with the clamping plate 52 respectively, the top of the cabinet body 1 is provided with an installation groove 16, the cross section of the installation groove 16 is circular, the diameter of the installation groove 16 is larger than that of the accommodating groove 14, and the installation groove 16 and the accommodating groove 14 are coaxially arranged. When the hand basket 5 is placed in the receiving groove 2121, the handle 54 is located in the mounting groove 16, and when the hand basket 5 needs to be taken out, the handle 54 is rotated and the hand basket 5 is pulled upwards, so that the hand basket 5 can be taken out conveniently by using the handle 54.

The observation piece 22 comprises a mounting frame 221 rotatably connected with the cabinet body 1 and an observation plate 222 which is arranged in the mounting frame 221 in a penetrating manner and fixedly connected with the mounting frame 221 in a sticking manner, the observation piece 22 is positioned at the top of the cabinet body 1, and the mounting frame 221 is made of a lead plate material; the cross-sectional shape of the observation plate 222 is rectangular, and the observation plate 222 is made of lead glass and can be used for activity detection through the observation plate 222, and can shield rays in the operation process, so that radiation damage to operators is reduced. The mounting frame 221 rotates with the cabinet body 1 to be connected, and the operator can adjust the angle of mounting frame 221 according to the height of self, and the operator of being convenient for operates.

Referring to fig. 5 and 6, two moving grooves 15 are formed in the bottom of the cabinet 1, the moving grooves 15 are respectively located on two sides of the cabinet 1, the mounting frame 221 is provided with two fixing assemblies 3 for fixing the observation plate 222, the fixing assemblies 3 include two moving blocks 31 and two connecting pipes 32, the moving blocks 31 are rectangular in shape, the width of the moving blocks 31 is smaller than that of the moving grooves 15, the moving blocks 31 are embedded in the moving grooves 15 and slidably connected with the moving grooves 15, one ends of the connecting pipes 32 are hinged to the mounting frame 221, and the other ends of the connecting pipes 32 are hinged to the tops of the moving blocks 31. An air bag 33 is fixedly arranged on the side wall of the moving block 31 in an adhering mode, the air bag 33 is U-shaped, and the moving block 31 penetrates through the air bag 33. The mounting frame 221 is provided with a bellows 34 for filling the airbag 33 with gas and a carrier 35 for carrying gas.

Cooperation groove 2211 has been seted up at the top of installing frame 221, cooperation groove 2211 is close to the lateral wall of installing frame 221, extensible member 34 wears to establish in cooperation groove 2211, extensible member 34 is including being the fixed pipe 341 that vertical direction set up and the slide bar 342 that is vertical direction setting, fixed pipe 341 is the hollow cylinder of bottom confined, the shape of slide bar 342 is cylindrical, slide bar 342 wears to establish in fixed pipe 341 and with fixed pipe 341 sliding connection, sealing connection between fixed pipe 341 and the slide bar 342, welding mode fixed connection is passed through to the bottom of fixed pipe 341 and the bottom of cooperation groove 2211.

Referring to fig. 5 and 7, the conveying member 35 includes a conveying pipe 351 and two air distribution pipes 352, the conveying pipe 351 and the air distribution pipes 352 are soft water pipes, one end of the conveying pipe 351 is communicated with the two air distribution pipes 352, the other end of the conveying pipe 351 is arranged inside the fixing pipe 341 from the bottom of the fixing pipe 341 in a penetrating manner, one end of the air distribution pipe 352 far away from the conveying pipe 351 is communicated with the top of the air bag 33, and the air distribution pipes 352 are arranged in the mounting frame 221 and the connecting pipe 32 in a penetrating manner.

When the observation plate 222 is moved to a required angle, the sliding rod 342 moves towards the direction close to the bottom of the fixed tube 341, the sliding rod 342 presses the gas in the fixed tube 341, so that the gas in the fixed tube 341 enters the air bag 33 along the delivery tube 351 and the gas distribution tube 352, the volume of the air bag 33 is increased, the side wall of the moving groove 15 presses the air bag 33, the air bag 33 deforms and acts on the side wall of the moving groove 15, the friction force between the air bag 33 and the side wall of the moving groove 15 is improved, and the observation plate 222 is fixed; when the angle of the observation plate 222 needs to be rotated, the sliding rod 342 moves in a direction away from the bottom of the fixed tube 341, the gas in the air bag 33 flows into the fixed tube 341, the volume of the air bag 33 is reduced, and the sliding block 53 can move in the direction of the sliding groove 521, so that the operation is simple and convenient.

Referring to fig. 5, 8 and 9, two abdicating grooves 2212 are formed in the side wall of the fitting groove 2211, the cross-sectional shape of the abdicating groove 2212 is circular, an included angle formed in the extending direction of the abdicating groove 2212 is one hundred eighty degrees, two first positioning grooves 3421 and two second positioning grooves 3422 are formed in the sliding rod 342, the shape and size of the first positioning grooves 3421 are the same as those of the second positioning grooves 3422, the included angle formed in the depth direction of the first positioning grooves 3421 is one hundred eighty degrees, the first positioning grooves 3421 are located at the upper portion of the sliding rod 342, the included angle formed in the depth direction of the second positioning grooves 3422 is one hundred eighty degrees, the second positioning grooves 3422 are located at the lower portion of the sliding groove 521, and the shape and size of the first positioning grooves 3421 are the same as those of the second positioning grooves 3422.

All be provided with spacing subassembly 4 that restriction slide bar 342 removed in the groove of stepping down 2212, spacing subassembly 4 includes fixture block 41, the cross sectional shape of fixture block 41 is circular, fixture block 41 inlays to be established in the groove of stepping down 2212 and along the groove of stepping down 2212 sliding connection, one side that the groove of stepping down 2212 bottom was kept away from to fixture block 41 is the arc, fixture block 41 and stepping down be provided with spring 42 between the groove 2212 bottom, welding mode fixed connection is passed through with the diapire of the groove of stepping down 2212 to spring 42's one end, welding mode fixed connection is passed through with fixture block 41 to spring 42's the other end.

When the fixture block 41 is embedded in the first positioning groove 3421, no gas is filled in the air bag 33, the moving block 31 can move along the direction of the moving groove 15, when the observation plate 222 needs to be fixed, the sliding rod 342 moves towards the direction close to the bottom of the fixed tube 341, the side wall of the first positioning groove 3421 presses the fixture block 41, so that the fixture block 41 moves towards the direction close to the bottom of the receding groove 2212, and the fixture block 41 presses the spring 42 to enable the spring 42 to be in a compressed state; when the second positioning groove 3422 is aligned with the fixture block 41, the spring 42 is compressed to generate elastic force, the elastic force acts on the fixture block 41, so that when the fixture block 41 is embedded in the second positioning groove 3422, the air bag 33 is filled with air, thereby fixing the moving block 31, preventing the moving block 31 from moving, and the limiting component 4 is convenient to rotate and fix the observation plate 222.

The utility model provides an activity detects with radiation protection shielding case's implementation principle does: the activity meter measuring well is placed in the accommodating groove 2121 through the hand basket 5, the shielding element 21 shields the radiation generated by the activity meter measuring well in the operation process, then an operator adjusts the angle of the observation element 22 according to the condition of the operator, at the moment, the clamping block 41 is embedded in the first positioning groove 3421, when the observation plate 222 is adjusted to a required angle, the sliding rod 342 moves towards the direction close to the bottom of the fixed pipe 341, at the moment, the gas in the fixed pipe 341 is conveyed into the air bag 33 through the conveying element 35, so that the observation element 22 is fixed, and when the observation element 22 needs to be moved again, the sliding rod 342 is moved towards the direction far away from the bottom of the fixed pipe 341, so that the clamping block 41 is embedded in the second positioning groove 3422. The cooperation of the shielding member 21 and the observation member 22 can shield rays during the operation of an operator, reduce the radiation injury to the operator during the measurement operation of radioactive substances, and is beneficial to the health of the operator.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an activity detects with protecting against radiation shielded cell which characterized in that: the radiation-proof cabinet comprises a cabinet body (1), wherein the cabinet body (1) is a hollow shell with an opening at one side, a partition plate (11) is fixedly arranged in the cabinet body (1), a first accommodating cavity (12) is formed between the partition plate (11) and the top of the cabinet body (1), a second accommodating cavity (13) is formed between the partition plate (11) and the bottom of the cabinet body (1), a shielding assembly (2) is arranged on the cabinet body (1), and the shielding assembly (2) comprises a shielding piece (21) which is arranged in the first accommodating cavity (12) and used for shielding rays and an observation piece (22) which is arranged at the top of the cabinet body (1) and used for facilitating the measurement operation of radioactivity activity; the observation piece (22) comprises a mounting frame (221) rotatably connected with the cabinet body (1) and an observation plate (222) fixedly connected with the mounting frame (221) and mounted in the mounting frame (221).

2. The radiation-proof shielding box for activity detection according to claim 1, characterized in that: a moving groove (15) is formed in the cabinet body (1), a fixing component (3) for fixing the observation plate (222) is arranged on the mounting frame (221), the fixing component (3) comprises a moving block (31) which is embedded in the moving groove (15) and is in sliding connection with the moving groove (15) and a connecting pipe (32) hinged to the moving block (31), an air bag (33) is fixedly arranged on the moving block (31), and the connecting pipe (32) is hinged to the mounting frame (221); the mounting frame (221) is provided with a telescopic member (34) for filling the air bag (33) with gas and a conveying member (35) for conveying the gas.

3. The radiation-proof shielding box for activity detection according to claim 2, characterized in that: the mounting frame (221) is provided with a matching groove (2211), the telescopic piece (34) comprises a fixed pipe (341) fixedly connected with the bottom of the matching groove (2211) and a sliding rod (342) penetrating through the fixed pipe (341) and slidably connected with the fixed pipe (341), the conveying piece (35) comprises a conveying pipe (351) and gas distribution pipes (352) the number of which is the same as that of the moving blocks (31), the gas distribution pipes (352) are communicated with the conveying pipe (351), the gas distribution pipes (352) are penetrating through the connecting pipe (32), one end of each gas distribution pipe (352) is communicated with the air bag (33), and the conveying pipe (351) is communicated with the fixed pipe (341).

4. The radiation-proof shielding box for activity detection according to claim 3, characterized in that: seted up on the lateral wall of cooperation groove (2211) and stepped down groove (2212), seted up on slide bar (342) with first constant head tank (3421) and second constant head tank (3422) that stepped down groove (2212) cooperation was used, be provided with the restriction in stepped down groove (2212) spacing subassembly (4) that slide bar (342) removed, spacing subassembly (4) including spring (42) and with spring (42) fixed connection's fixture block (41).

5. The radiation-proof shielding box for activity detection according to claim 1, characterized in that: the utility model discloses a cabinet activity meter measuring well, including shielding part (21) including with the cabinet body (1) fixed connection's protective housing (211), protective housing (211) is one side open-ended hollow shell, be provided with installation piece (212) on protective housing (211), set up holding tank (2121) of depositing the activity meter measuring well on installation piece (212), the top of the cabinet body (1) seted up with holding tank (2121) just to accomodate groove (14).

6. The radiation-proof shielding box for activity detection according to claim 5, characterized in that: further comprising a hand basket (5) for placing the activity meter measurement well in the receiving pocket (2121).

7. The radiation-proof shielding box for activity detection according to claim 6, characterized in that: a sliding groove (521) is formed in the hand basket (5), and a sliding block (53) which is embedded in the sliding groove (521) and is in sliding connection with the sliding groove (521) is fixedly arranged on the side wall of the accommodating groove (14).

8. The radiation-proof shielding box for activity detection according to claim 7, characterized in that: the portable basket (5) comprises a handle (54), a mounting groove (16) for accommodating the handle (54) is formed in the cabinet body (1), and the mounting groove (16) and the accommodating groove (14) are coaxially formed.