Sample bearing disc structure for irradiation

The slide rail and clamping plate structure quickly fixes the sample, and the locking column and ball bearing mechanism lock the disk cover, which solves the problem of easy sample displacement in the existing bearing disk, realizes stable sample fixation and safety of the irradiation process, and improves operation efficiency and irradiation effect.

CN223911424UActive Publication Date: 2026-02-13TIANJIN JPY ION TECH
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Patent Information

Application Number
CN202520379024.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-02-13
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

The existing sample carriers for irradiation lack effective fixing devices during transportation and irradiation, which makes the samples prone to displacement and collision, affecting the irradiation effect and product quality.

Method used

The system employs a slide rail and clamping plate structure, using threaded posts and rotating handles to quickly fix the sample, and a locking post and ball bearing mechanism to quickly lock the cover, ensuring sample stability and the safety of the irradiation environment.

Benefits of technology

It improves the stability and ease of operation of the sample fixation, ensures the uniformity of the irradiation process and the safety of the sample, and enhances the efficiency of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of bearing discs, and discloses an irradiation sample bearing disc structure which comprises a disc body, a fixing assembly is arranged in the disc body, the fixing assembly comprises a plurality of sliding rails, sliding grooves are formed in the tops of the sliding rails, a plurality of sliding blocks are connected to the inner walls of the sliding grooves in a sliding mode, and the sliding blocks are arranged on the sliding rails. Clamping plates are fixedly connected between the side walls of the sliding blocks, threaded columns are slidably connected to the inner walls of the sliding blocks, rotating handles are fixedly connected to the tops of the threaded columns, protruding balls are fixedly connected to the bottoms of the threaded columns, and sliding columns are arranged on the left sides and the right sides of the protruding balls. According to the sample device, a sample is placed between the clamping plates, then the rotating handle is rotated, the protruding ball is promoted to extrude the sliding column to move, the sliding plate is tightly attached to the inner wall of the sliding groove, and the positions of the sliding block and the clamping plates are fixed, so that the effect of rapidly fixing the position of the sample is achieved, and the problem that the sample is damaged due to the fact that the sample device is not fixed is solved; and the sample fixing stability is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bearing disc, especially to sample bearing disc structure for irradiation. BACKGROUND

[0002] Under the background of the wide application of modern irradiation technology, the structure design of sample bearing disc for irradiation plays a key role in irradiation effect. Whether it is food irradiation to extend shelf life, medical product irradiation for sterilization, or irradiation modification of materials in material science research, the bearing disc is indispensable. The sample needs to be accurately positioned on the bearing disc and stably receive irradiation, which requires a reasonable bearing disc structure that can adapt to various samples and irradiation environments to ensure smooth irradiation process. Its importance is self-evident.

[0003] The existing sample bearing disc for irradiation, some of which are simple flat structures, rely only on the friction between the sample and the disc surface to maintain the placement state, without any additional fixing mechanism. Some have simple grooves or protrusions on the edge of the disc body, which can achieve preliminary fixation by embedding the sample edge. The principle is to prevent the sample from moving within a small range by physical obstruction. In terms of disc cover fixation, the common method is to use ordinary clasp design to connect the disc cover and disc body by opening and closing the clasp, or to use simple bolts and nuts to tighten and fix the disc cover and disc body.

[0004] However, these existing bearing discs have the problem of sample fixation. Due to the lack of effective fixing devices, when the bearing disc is shaken during transportation or moves in the irradiation equipment, the sample is easily displaced and collided in the disc. This not only may cause damage to the appearance of the sample, but also may cause uneven irradiation dose, seriously affecting the irradiation effect and further affecting the quality of subsequent products or research results. Therefore, a sample bearing disc structure for irradiation is proposed to solve the above problems. SUMMARY

[0005] To overcome the above shortcomings, the utility model provides a sample bearing disc structure for irradiation, which aims to improve the problem of sample damage caused by the lack of fixed sample devices in the prior art.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The sample bearing disc structure for irradiation includes a disc body, a fixing assembly is arranged inside the disc body, and the fixing assembly is used to fix the position of the sample.

[0008] The fixed assembly includes a plurality of slide rails symmetrically distributed on the inner wall of the disc body, the bottom of each slide rail is fixedly connected to the bottom of the inner wall of the disc body, the top of each slide rail is provided with a sliding groove, a plurality of sliding blocks are slidably connected to the inner wall of each sliding groove, a clamping plate is fixedly connected between the side walls of each sliding block, a threaded column is slidably connected to the inner wall of each sliding block, a rotating handle is fixedly connected to the top of the threaded column, a protruding ball is fixedly connected to the bottom of the threaded column, a sliding column is arranged on the left and right sides of the protruding ball, the sliding column is slidably connected to the inner wall of the sliding block, and a sliding plate is fixedly connected to the side wall of the sliding column and slidably connected to the outer wall of the sliding block on the left and right sides.

[0009] As a further description of the above technical scheme:

[0010] A plurality of handles are arranged on the side edges of the disc body and symmetrically distributed on the outer wall of the disc body, and the side wall of each handle is fixedly connected to the side wall of the disc body.

[0011] As a further description of the above technical scheme:

[0012] A plurality of fixed blocks are arranged on the inner wall of the disc body and distributed at the four corners of the inner wall of the disc body, and the bottom of each fixed block is fixedly connected to the bottom of the inner wall of the disc body.

[0013] As a further description of the above technical scheme:

[0014] A disc cover is slidably connected to the top of the disc body, and left and right symmetric handles are fixedly connected to the top of the disc cover.

[0015] As a further description of the above technical scheme:

[0016] A plurality of locking columns are arranged in the disc cover and distributed at the four corners of the disc cover, and the outer wall of each locking column is fixedly connected to the disc cover.

[0017] As a further description of the above technical scheme:

[0018] A plurality of balls are arranged on the inner wall of each locking column and distributed in a circumferential manner, and the balls are slidably connected to the bottom of the inner wall of the locking column.

[0019] As a further description of the above technical scheme:

[0020] A movable inner column is slidably connected to the inner wall of the locking column, an accommodating groove is arranged at the bottom of the movable inner column, a top column is fixedly connected to the top of the movable inner column, a rotating knob is fixedly connected to the top of the top column, and a limiting hole ring is fixedly connected to the top of the locking column.

[0021] As a further description of the above technical scheme:

[0022] The top column outer wall is fixedly connected with a plurality of limiting blocks, the limiting blocks are distributed in a circumferential shape, the bottom of the top column is provided with a reset spring, the reset spring is sleeved on the movable inner column outer wall, one end of the reset spring is fixedly connected to the bottom of the top column inner wall, and the other end of the reset spring is fixedly connected to the locking column inner wall.

[0023] The utility model has the advantages of the following beneficial effects:

[0024] 1、 the utility model discloses a staff places the irradiation sample between two clamping plates, and manually slides the clamping plate and makes it close to the sample lateral wall, then rotates the rotating handle, drives the threaded column to go down and pushes the protruding ball extrusion sliding column and displaces outward, makes the sliding plate close to the sliding slot inner wall, fixes the position of the sliding block and clamping plate, and the effect of quick fixing sample position is achieved, the problem of sample damage caused by the lack of sample fixing device of traditional bearing disc is solved, and the stability and operation convenience of sample fixing are improved.

[0025] 2、 the utility model discloses that the manual downward press and rotate the rotating knob, drive the top column outer wall limiting block to pass through the limiting hole ring, compress reset spring, and the top column rotates and makes the limiting block shift to the bottom of the limiting hole ring, pushes the movable inner column and goes down, and the ball in the accommodating groove displaces outward to the fixed block hole position, and the ball is locked, so that the effect of quick locking disc cover is achieved, the problem of disc cover fixing is complicated and not firm is solved, and the operation efficiency and sample safety are improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the three-dimensional view of the sample bearing disc structure for irradiation provided by the utility model;

[0027] Figure 2 It is the slide rail structure schematic view of the sample bearing disc structure for irradiation provided by the utility model;

[0028] Figure 3 It is Figure 2 The enlarged view of A in the middle;

[0029] Figure 4 It is the locking column structure schematic view of the sample bearing disc structure for irradiation provided by the utility model;

[0030] Figure 5 It is Figure 4 The enlarged view of B in the middle.

[0031] LEGEND:

[0032] 1, disc body; 2, handle; 3, disc cover; 4, handle; 5, slide rail; 6, sliding groove; 7, sliding block; 8, rotating handle; 9, threaded column; 10, protruding ball; 11, sliding column; 12, sliding plate; 13, clamping plate; 14, fixed block; 15, locking column; 16, ball; 17, movable inner column; 18, containing groove; 19, top column; 20, rotating knob; 21, limit hole ring; 22, limit block; 23, return spring. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] Referring to Figure 1 Figure 3 An embodiment provided by the present application: a sample carrying disc structure for irradiation, comprising a disc body 1, the disc body 1 is made of stainless steel material, the stainless steel material can effectively resist the erosion of the irradiation environment, ensure the stability of the carrying disc in the long-term use process, and will not be deformed or damaged due to irradiation, provide a solid and reliable foundation support for the whole carrying disc, a fixing assembly is arranged in the disc body 1, the fixing assembly is used for fixing the position of the sample;

[0035] ​The fixed assembly comprises a plurality of slide rails 5 made of aluminum alloy, which mainly provides precise sliding tracks for the sliding blocks 7 and the clamping plates 13, ensures that the sliding blocks 7 and the clamping plates 13 keep stable and smooth during movement, and will not shake or deviate. The slide rails 5 are symmetrically distributed on the inner wall of the disc body 1, the bottom of the slide rails 5 is fixedly connected to the inner wall of the disc body 1, the top of the slide rails 5 is provided with a sliding groove 6, the inner wall of the sliding groove 6 is slidably connected with a plurality of sliding blocks 7, the sliding blocks 7 are made of engineering plastic, which has good wear resistance and self-lubricating property, can freely slide in the sliding groove 6, and reduces the friction resistance. At the same time, its texture is relatively soft, which can avoid damage to the slide rails 5 during sliding. The side walls of the sliding blocks 7 are fixedly connected with clamping plates 13, the side walls of the clamping plates 13 are made of rubber material, which is soft and elastic. When fixing the sample, it can tightly fit the side wall of the sample, play a buffering role, effectively prevent the sample from being scratched, collided and damaged due to direct contact with hard components, so as to realize flexible fixing of the sample. The inner wall of the sliding block 7 is slidably connected with a threaded column 9, the top of the threaded column 9 is fixedly connected with a rotating handle 8, the rotating handle 8 is made of plastic material surface texture, which is convenient for staff to hold and operate. The bottom of the threaded column 9 is fixedly connected with a protruding ball 10 made of metal. When the threaded column 9 moves downward, the protruding ball 10 moves downward, and the spherical structure is used to exert extrusion force on the sliding columns 11 on the left and right sides. The protruding ball 10 is provided with sliding columns 11 on the left and right sides, which are slidably connected to the inner wall of the sliding block 7. The side wall of the sliding column 11 is fixedly connected with a sliding plate 12, which is mainly made of metal material, and the side wall has rubber balls. When the sliding column 11 moves outward, it drives the sliding plate 12 to slide synchronously on the outer wall of the sliding block 7 on the left and right sides until the sliding plate 12 tightly fits the inner wall of the sliding groove. By increasing the friction, the position of the sliding block 7 and the clamping plate 13 is fixed. The sliding plate 12 is slidably connected to the outer wall of the sliding block 7 on the left and right sides. The disc body 1 is provided with a plurality of handles 2 made of plastic and rubber, which has good anti-skid property and comfortable grip, and is convenient for staff to grasp when carrying the disc. The handles 2 are symmetrically distributed on the outer wall of the disc body 1, and the side wall of the handle 2 is fixedly connected to the side wall of the disc body 1. The inner wall of the disc body 1 is provided with a plurality of fixed blocks 14 made of metal, which mainly cooperates with the disc cover 3 to realize precise positioning and stable locking of the disc cover 3 through the locking mechanism. The fixed blocks 14 are distributed at the four corners of the inner wall of the disc body 1, and the bottom of the fixed blocks 14 is fixedly connected to the inner wall of the disc body 1. The top of the disc body 1 is slidably connected with a disc cover 3 made of metal, which can effectively protect the sample from being polluted by dust, impurities and the like. The top of the disc cover 3 is fixedly connected with left and right symmetrical handles 4 made of plastic, which is convenient for staff to easily lift and put down the disc cover 3 through the handles 4.

[0036] Specifically, in the use of the sample irradiation sample carrier plate structure, the staff first places the sample between the two clamping plates 13 inside the plate body 1, then the staff manually slides the clamping plate 13 until the side wall of the clamping plate 13 is tightly attached to the side wall of the sample, the preliminary positioning of the sample is completed, then the staff rotates the rotating handle 8 above the sliding block 7, the rotation of the rotating handle 8 drives the threaded column 9 fixedly connected with it to rotate, under the action of the threads on the outer wall of the threaded column 9, with the continuous rotation of the rotating handle 8, the threaded column 9 will displace downward along its axis, the downward displacement of the threaded column 9 will make the protruding ball 10 at the bottom of it also move downward, with the continuous downward displacement of the protruding ball 10, its outer wall will gradually extrude the sliding columns 11 on the left and right sides inside the sliding block 7, after being extruded by the protruding ball 10, the sliding columns 11 will move laterally along the slide designed in advance inside the sliding block 7, the lateral displacement of the sliding columns 11 will drive the sliding plate 12 fixedly connected with it to also move to the left and right sides, when the side wall of the sliding plate 12 is extruded on the inner wall of the sliding groove 6, a large friction will be generated, this friction is enough to make the position of the sliding block 7 be fixed, since the clamping plate 13 is fixedly connected with the sliding block 7, the fixation of the position of the sliding block 7 also makes the position of the clamping plate 13 be fixed, thus achieving the effect of quickly fixing samples of different sizes.

[0037] Referring to Figure 4 and Figure 5The inside of the disc cover 3 is provided with a plurality of locking columns 15, which are also made of metal material, and the outer wall thereof is fixedly connected with the inside of the disc cover 3. This connection mode provides a stable basis for the entire locking structure, and ensures that the locking column 15 will not be displaced or loosened in subsequent operation, and bears the key positioning and locking function. The locking column 15 is distributed at four corners inside the disc cover 3, and the outer wall of the locking column 15 is fixedly connected inside the disc cover 3. A plurality of balls 16 are arranged on the inner wall of the locking column 15. The balls 16 are made of stainless steel material with high hardness and strong wear resistance. The main function thereof is to change the position in the locking and unlocking process, and then rely on the friction force between the outer wall and the lock hole to ensure the locking of the entire locking mechanism. The balls 16 are distributed in a circumferential shape, and the balls 16 are slidingly connected at the bottom of the inner wall of the locking column 15. The inner wall of the locking column 15 is slidingly connected with a movable inner column 17. The bottom of the movable inner column 17 is provided with a containing groove 18 for placing the balls 16. In the process of moving the movable inner column 17 up and down, the containing groove 18 will drive the balls 16 to move together. The different state switching of locking and unlocking is realized by changing the position of the balls 16. The top of the movable inner column 17 is fixedly connected with a top column 19. The top of the top column 19 is fixedly connected with a rotating knob 20 made of plastic material, which is convenient for the staff to hold and rotate. By rotating the rotating knob 20, the top column 19 and the movable inner column 17 can be driven to move correspondingly, so as to realize the control of locking and unlocking of the disc cover 3. The inner wall of the locking column 15 is fixedly connected with a limiting hole ring 21 made of metal. The function thereof is to limit the position of the top column 19, and then limit the positions of the movable inner column 17 and the balls 16. The outer wall of the top column 19 is fixedly connected with a plurality of limiting blocks 22 which are also made of metal. They cooperate with the limiting hole ring 21. In the process of rotating and moving of the top column 19, the positions of the limiting blocks 22 and the limiting hole ring 21 are changed, so as to realize the locking and adjustment of the positions of the top column 19 and the movable inner column 17. The limiting blocks 22 are distributed in a circumferential shape. The bottom of the top column 19 is provided with a reset spring 23. The reset spring 23 is sleeved on the outer wall of the movable inner column 17. One end of the reset spring 23 is fixedly connected with the inner wall of the top column 19. The other end of the reset spring 23 is fixedly connected with the inner wall of the locking column 15. When the locking is released, the reset spring 23 will provide a reverse elastic force, so that the top column 19 and the movable inner column 17 can return to the initial position, and prepare for the next locking operation;

[0038] Specifically, after the sample is fixed between the two clamping plates 13, the worker starts the installation operation of the cover 3. First, the worker places the cover 3 directly above the disc body 1 by the handle 4 at the top of the cover 3. In this process, the worker aligns the bottom of the locking column 15 at the four corners of the cover 3 with the preset hole position of the fixed block 14 at the four corners of the inner wall of the disc body 1, ensures that the positions of the two correspond completely, and then the worker places the cover 3 vertically downward until the bottom of the cover 3 completely matches the top of the disc body 1, and the cover 3 is placed in position, completing the preliminary installation of the cover 3. After closing the cover 3, the worker manually operates the rotating knob 20. First, downward pressure is applied to make the rotating knob 20 displace in the vertical direction, and at the same time the rotating knob 20 is rotated, the displacement of the rotating knob 20 directly drives the top column 19 connected thereto to move downward in the vertical direction at the same time. The plurality of limiting blocks 22 on the outer wall of the top column 19 displace downward in the vertical direction and pass through the limiting hole ring 21 along with the downward movement of the top column 19. In the process of the limiting blocks 22 passing through the limiting hole ring 21, the limiting blocks 22 come into contact with the return spring 23 and apply pressure thereto, so that the return spring 23 is compressed under stress and stores elastic potential energy. At the same time, since the worker continues to rotate the rotating knob 20, the top column 19 also rotates, and under the action of the rotation of the top column 19, the position of the limiting block 22 changes after passing through the limiting hole ring 21 and moves to the bottom of the limiting hole ring 21. The limiting block 22 is clamped at the bottom of the limiting hole ring 21 and cannot return to the original position after moving to the bottom of the limiting hole ring 21, thereby achieving the position locking of the top column 19 in the vertical direction. At this time, since the top column 19 displaces downward, the movable inner column 17 also displaces downward in the vertical direction. The accommodating groove 18 at the bottom of the movable inner column 17 also displaces downward in the vertical direction along with the downward movement of the movable inner column 17. In the process of the displacement of the accommodating groove 18, the ball 16 on the inner wall thereof is guided by the inner wall of the accommodating groove 18 and displaces radially outward along the inner wall of the accommodating groove 18 until the ball 16 moves into the hole position pre-set in the fixed block 14. When the ball 16 enters the hole position of the fixed block 14, the displacement of the ball 16 is limited, the quick locking between the cover 3 and the disc body 1 is achieved, and the stability and safety of the sample irradiation environment are ensured.

[0039] Working principle: when using the sample carrying plate structure for irradiation, the worker first places the sample inside the disc body 1, places the sample between the two clamping plates 13, then manually slides the clamping plate 13, drives the sliding block 7 on both sides thereof to slide in the sliding groove 6 inside the slide rail 5, tightly abuts the side wall of the clamping plate 13 against the side wall of the sample, then rotates the rotating handle 8 above the sliding block 7, the rotation of the rotating handle 8 drives the threaded column 9 to rotate, under the action of the threads on the outer wall of the threaded column 9, the displacement of the threaded column 9 is also downward, the displacement of the threaded column 9 also makes the protruding ball 10 at the bottom thereof also downward, the continuous displacement of the protruding ball 10 makes the outer wall thereof extrude the sliding columns 11 inside the sliding block 7 to outwardly displace, the displacement of the sliding columns 11 drives the sliding plate 12 to also displace, makes the side wall of the sliding plate 12 extrude the inner wall of the sliding groove 6, makes the position of the sliding block 7 fixed, and further makes the position of the clamping plate 13 also fixed, so as to achieve the effect of quickly fixing samples of different sizes, after fixing the sample, the worker immediately places the disc cover 3 above the disc body 1 through the handle 4, and simultaneously aligns the locking columns 15 at the bottom of the four corners of the disc cover 3 with the hole positions of the fixing blocks 14 inside the disc body 1, then places downward to the position, after closing the disc cover 3, the worker manually presses and rotates the rotating knob 20 downward, the displacement of the rotating knob 20 drives the plurality of limiting blocks 22 on the outer wall of the top column 19 to pass through the limiting hole ring 21, and makes the return spring 23 forcedly compressed, at the same time, the rotation of the top column 19 makes the limiting blocks 22 move to the bottom of the limiting hole ring 21 after passing through the limiting hole ring 21, and cannot restore to the original position, at this time, since the displacement of the top column 19 pushes the movable inner column 17 to also displace downward, the accommodating groove 18 originally at the bottom of the movable inner column 17 also displaces downward, and the ball 16 inside the accommodating groove 18 also displaces outwardly and moves to the hole positions inside the fixing blocks 14, so as to complete the displacement limitation of the ball 16, thereby achieving the effect of quickly locking the disc cover 3.

[0040] Finally, it should be noted that: the above only for preferred embodiments of the present application, and not for limiting the present application, although the foregoing has been described in detail, for the skilled in the art, it still can be modified, or equivalent replacement, for the technical solutions recorded in the foregoing embodiments, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the protection scope of the present application.

Claims

1. An irradiation sample carrier disk structure comprising a disk body (1), characterized in that: The disc body (1) is internally provided with a fixing assembly for fixing the position of the sample; The fixing assembly comprises a plurality of sliding rails (5) symmetrically distributed on the inner wall of the disc body (1), the bottom of the sliding rail (5) is fixedly connected to the inner wall bottom of the disc body (1), the top of the sliding rail (5) is provided with a sliding groove (6), the inner wall of the sliding groove (6) is slidably connected with a plurality of sliding blocks (7), the sliding blocks (7) are fixedly connected with clamping plates (13) between the side walls, the inner wall of the sliding block (7) is slidably connected with a threaded column (9), the top of the threaded column (9) is fixedly connected with a rotating handle (8), the bottom of the threaded column (9) is fixedly connected with a protruding ball (10), the left and right sides of the protruding ball (10) are provided with sliding columns (11), the sliding columns (11) are slidably connected to the inner wall of the sliding block (7), and the sliding plates (12) are fixedly connected to the side walls of the sliding columns (11) and slidably connected to the left and right outer walls of the sliding block (7).

2. The sample carrier disc structure for irradiation according to claim 1, characterized by: The disc body (1) is provided with a plurality of handles (2) symmetrically distributed on the outer wall of the disc body (1), and the side wall of the handle (2) is fixedly connected to the side wall of the disc body (1).

3. The sample carrier disc structure for irradiation according to claim 2, characterized by: The inner wall of the disc body (1) is provided with a plurality of fixed blocks (14), which are distributed at the four corners of the inner wall of the disc body (1), and the bottom of the fixed block (14) is fixedly connected to the inner wall bottom of the disc body (1).

4. The sample carrier disc structure for irradiation according to claim 3, characterized by: The top of the disc body (1) is slidably connected with a disc cover (3), and the top of the disc cover (3) is fixedly connected with left and right symmetric handles (4).

5. The sample carrier disc structure for irradiation according to claim 4, characterized by: The disc cover (3) is internally provided with a plurality of locking columns (15), which are distributed at the four corners of the disc cover (3) interior, and the outer wall of the locking column (15) is fixedly connected to the disc cover (3) interior.

6. The sample carrier disc structure for irradiation according to claim 5, characterized by: The inner wall of the locking column (15) is provided with a plurality of balls (16), which are circumferentially distributed, and the balls (16) are slidably connected to the inner wall bottom of the locking column (15).

7. The sample carrier disc structure for irradiation according to claim 6, characterized by: The inner wall of the locking column (15) is slidably connected with a movable inner column (17), the bottom of the movable inner column (17) is provided with an accommodating groove (18), the top of the movable inner column (17) is fixedly connected with a top column (19), the top of the top column (19) is fixedly connected with a rotating knob (20), and the inner wall of the locking column (15) is fixedly connected with a limiting hole ring (21).

8. The sample carrier disc structure for irradiation according to claim 7, characterized by: The outer wall of the top column (19) is fixedly connected with a plurality of limiting blocks (22), which are circumferentially distributed, the bottom of the top column (19) is provided with a reset spring (23), the reset spring (23) is sleeved on the outer wall of the movable inner column (17), one end of the reset spring (23) is fixedly connected to the inner wall bottom of the top column (19), and the other end of the reset spring (23) is fixedly connected to the inner wall of the locking column (15).