Electron linear accelerator rack with self-shielding device

Abstract

The utility model discloses an electron linear accelerator frame with a self-shielding device, which comprises a base, a sliding rail is arranged at the upper end of the base, a sliding seat is connected in the sliding rail in a sliding manner, and a moving mechanism for moving the sliding seat is arranged on the base; a bed body is fixedly mounted at the upper end of the sliding seat, a sliding cavity is formed in the upper end of the bed body, two protection plates are symmetrically arranged in the sliding cavity, and a rotating mechanism used for rotating the two protection plates is arranged in the bed body. According to the utility model, the stable and accurate rotation of the protection plate is realized, so that the radiation generated by the electron linear accelerator can be quickly and effectively shielded, and meanwhile, the rack is also provided with a flexible sliding seat design, so that the bed body can horizontally move to a required position, and accurate experiment or treatment operation can be conveniently carried out. The design not only improves the shielding efficiency and the cost effectiveness, but also enhances the flexibility and the operation convenience of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of electron linear accelerator technology, and in particular to an electron linear accelerator frame with a self-shielding device. Background Technology

[0002] In the application of electron linear accelerators, ensuring the safety of experimental or therapeutic processes is paramount. Electron linear accelerators generate high-intensity radiation during operation, which, if not effectively shielded, can pose serious radiation hazards to the surrounding environment and personnel. Traditional shielding methods typically rely on thick shielding materials requiring the construction of very thick machine rooms. This not only consumes large amounts of reinforced concrete but also involves lengthy construction periods, increasing costs and potentially limiting the equipment's flexibility and ease of operation.

[0003] A search revealed that patent publication number CN216934476U describes a medical linear accelerator frame with a self-shielding device that can align two protective plates in a circular motion to achieve a shielding effect. However, due to the design of the transmission system, the protective plates need to close during the movement of the bed. This means that the position of the bed must be fixed, otherwise the protective plates cannot be completely closed. Furthermore, the protective plates cannot completely shield the radiation generated by the linear accelerator during the movement of the bed, leading to radiation leakage and posing a potential threat to the surrounding environment and personnel. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an electron linear accelerator frame with a self-shielding device. This device enables smooth and precise rotation of the protective plate, thereby quickly and effectively shielding the radiation generated by the electron linear accelerator. Furthermore, the frame features a flexible sliding seat design, allowing the bed to be moved horizontally to the desired position for precise experimental or therapeutic procedures. This design not only improves shielding efficiency and cost-effectiveness but also enhances the flexibility and ease of operation of the equipment.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An electron linear accelerator frame with a self-shielding device includes a base, a slide rail at the upper end of the base, a sliding seat slidably connected inside the slide rail, and a moving mechanism for moving the sliding seat on the base.

[0007] The upper end of the sliding seat is fixedly installed with a bed body. The upper end of the bed body has a sliding cavity. Two protective plates are symmetrically arranged inside the sliding cavity. The bed body has a rotating mechanism for rotating the two protective plates.

[0008] Preferably, the moving mechanism includes a first motor fixedly mounted on the side wall of the base, the output shaft of the first motor extending into the interior of the slide rail and fixedly mounted with a screw, the other end of the screw passing through the sliding seat and rotatably connected to the inner side of the slide rail, and the screw being threadedly connected to the sliding seat.

[0009] Preferably, the bed body is a hollow structure and the sliding cavity is an arc-shaped structure.

[0010] Preferably, the rotating mechanism includes two gears symmetrically arranged on the inner side of the bed body, the two gears meshing with each other, and telescopic plates fixedly installed on the side walls of the two gears. The other end of the telescopic plates is rotatably connected to a rotating seat, and the rotating seat is fixedly installed on the side wall of the protective plate.

[0011] Preferably, an installation plate is fixedly installed on the inner side of the bed, and a second motor is fixedly installed on the side wall of the installation plate. The output shaft of the second motor is coaxially fixed with one of the gears.

[0012] Preferably, the telescopic plate consists of a hollow plate and a square plate located in the inner cavity of the hollow plate. The hollow plate is fixedly connected to a gear, and the end of the square plate away from the gear is rotatably connected to a rotating seat.

[0013] This utility model has the following beneficial effects:

[0014] 1. The gear is driven to rotate by the second motor. The meshing relationship between the gears enables the two gears to rotate synchronously and in opposite directions, ensuring that the protective plate can slide smoothly and accurately along the slide cavity, thereby adjusting its position and angle. During the rotation of the telescopic plate, the rotational motion of the gear is effectively transmitted to the protective plate, so that the protective plate can be accurately aligned and closed to form the required shielding effect.

[0015] 2. By aligning and closing the two protective plates, the radiation generated by the electron linear accelerator can be quickly and effectively shielded, protecting the surrounding environment and personnel from radiation hazards. The shielding effect does not depend on complex mechanical structures or additional shielding materials, thereby improving shielding efficiency and cost-effectiveness.

[0016] 3. After the first motor is turned on, its output shaft drives the screw to rotate, thereby enabling the sliding seat to slide smoothly in the slide rail. This design allows the bed to move horizontally to the required position, facilitating precise experimental or treatment operations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an electron linear accelerator frame with a self-shielding device proposed in this utility model;

[0018] Figure 2This is a side cross-sectional view of an electron linear accelerator frame with a self-shielding device proposed in this utility model;

[0019] Figure 3 This is a cross-sectional view of an electron linear accelerator frame with a self-shielding device proposed in this utility model.

[0020] In the diagram: 1. Base, 2. First motor, 3. Slide rail, 4. Screw, 5. Sliding seat, 6. Bed, 7. Protective plate, 8. Rotating seat, 9. Telescopic plate, 10. Gear, 11. Mounting plate, 12. Second motor, 13. Opening, 14. Sliding cavity. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0023] Reference Figure 1-Figure 3 An electron linear accelerator frame with a self-shielding device includes a base 1, a slide rail 3 at the upper end of the base 1, a sliding seat 5 slidably connected inside the slide rail 3, the sliding seat 5 sliding inside the slide rail 3 to achieve horizontal movement, and a moving mechanism for moving the sliding seat 5 is provided on the base 1. The moving mechanism includes a first motor 2 fixedly installed on the side wall of the base 1, the output shaft end of the first motor 2 extending into the interior of the slide rail 3 and fixedly installed with a screw 4, the other end of the screw 4 passing through the sliding seat 5 and rotatably connected to the inner side of the slide rail 3, and the screw 4 threadedly connected to the sliding seat 5.

[0024] A bed 6 is fixedly installed on the upper end of the sliding seat 5. A sliding cavity 14 is opened on the upper end of the bed 6. The bed 6 is a hollow structure, and the sliding cavity 14 is an arc-shaped structure. Two protective plates 7 are symmetrically arranged inside the sliding cavity 14. A rotating mechanism for rotating the two protective plates 7 is provided inside the bed 6. The rotating mechanism includes two gears 10 symmetrically arranged on the inner side of the bed 6. The two gears 10 mesh with each other. A telescopic plate 9 is fixedly installed on the side wall of the two gears 10. A rotating seat 8 is rotatably connected to the other end of the telescopic plate 9. The rotating seat 8 is fixedly installed on the side wall of the protective plate 7. An installation plate 11 is fixedly installed on the inner side of the bed 6. A second motor 12 is fixedly installed on the side wall of the installation plate 11. The output shaft of the second motor 12 is coaxially fixed with one of the gears 10. The telescopic plate 9 consists of a hollow plate and a square plate located in the inner cavity of the hollow plate. The hollow plate is fixedly connected to the gear 10. The end of the square plate away from the gear 10 is rotatably connected to the rotating seat 8.

[0025] Working principle:

[0026] When shielding of the electronic linear accelerator is required, the second motor 12 drives the gear 10 to rotate. Through the meshing relationship between the gears, the two gears 10 rotate synchronously in opposite directions. At the same time, during the rotation of the telescopic plate 9, the protective plate 7 slides along the slide cavity 14, thereby adjusting the position and angle of the protective plate 7. The two protective plates 7 are aligned and closed to achieve the required shielding effect.

[0027] Next, the first motor 2 is turned on. The output shaft of the first motor 2 drives the screw 4 to rotate. The rotation of the screw 4 realizes the movement of the sliding seat 5, which in turn drives the sliding seat 5 to slide within the slide rail 3, thus realizing the horizontal movement of the bed 6.

[0028] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An electron linear accelerator frame with a self-shielding device, characterized in that: Includes a base (1), the upper end of which is provided with a slide rail (3), and a sliding seat (5) is slidably connected inside the slide rail (3). The base (1) is provided with a moving mechanism for moving the sliding seat (5). The upper end of the sliding seat (5) is fixedly installed with a bed body (6). The upper end of the bed body (6) is provided with a sliding cavity (14). Two protective plates (7) are symmetrically arranged inside the sliding cavity (14). The bed body (6) is provided with a rotating mechanism for rotating the two protective plates (7).

2. The electron linear accelerator rack with self-shielding device according to claim 1, characterized in that, The moving mechanism includes a first motor (2) fixedly installed on the side wall of the base (1). The output shaft of the first motor (2) extends into the interior of the slide rail (3) and is fixedly installed with a screw (4). The other end of the screw (4) passes through the sliding seat (5) and is rotatably connected to the inner side of the slide rail (3). The screw (4) is threadedly connected to the sliding seat (5).

3. The electron linear accelerator rack with a self-shielding device according to claim 1, characterized in that, The bed body (6) is a hollow structure, and the sliding cavity (14) is an arc-shaped structure.

4. The electron linear accelerator rack with a self-shielding device according to claim 1, characterized in that, The rotating mechanism includes two gears (10) symmetrically arranged on the inner side of the bed (6). The two gears (10) mesh with each other. A telescopic plate (9) is fixedly installed on the side wall of the two gears (10). A rotating seat (8) is rotatably connected to the other end of the telescopic plate (9). The rotating seat (8) is fixedly installed on the side wall of the protective plate (7).

5. The electron linear accelerator rack with a self-shielding device according to claim 4, characterized in that, An installation plate (11) is fixedly installed on the inner side of the bed (6), and a second motor (12) is fixedly installed on the side wall of the installation plate (11). The output shaft of the second motor (12) is coaxially fixed with one of the gears (10).

6. The electron linear accelerator rack with a self-shielding device according to claim 4, characterized in that, The telescopic plate (9) consists of a hollow plate and a square plate located in the inner cavity of the hollow plate. The hollow plate is fixedly connected to the gear (10), and the end of the square plate away from the gear (10) is rotatably connected to the rotating seat (8).

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