A linear accelerator anti-collision protection ring balancing device

Abstract

The utility model relates to accelerator auxiliary device technical field discloses a linear accelerator anti -collision protection ring balancing device, including linear accelerator main part, rotating disc, the rotating disc fixed mounting is at the front side outer wall of linear accelerator main part, the front side outer wall fixed connection of rotating disc has the rack, be provided with anti -collision mechanism on the rack, be provided with the protection mechanism on the linear accelerator main part, the anti -collision mechanism includes the adjusting head frame, the adjusting head frame fixed connection is at the bottom outer wall of rack, the front and rear two side outer walls fixed connection of adjusting head frame have the mounting panel, the bottom inner wall of mounting panel is opened and has the positioning hole, the side inner wall insertion of positioning hole has the plug -in post, the bottom inner wall fixed connection of plug -in post has the compression spring. In the utility model, through the elastic force effect of compression spring, can make protection ring main part after being pressed by outside contact automatic reset and keep balance, ensure the timeliness and accuracy of subsequent anti -collision detection.

Description

Technical Field

[0001] This utility model relates to the field of accelerator auxiliary device technology, and in particular to a balancing device for a collision protection ring of a linear accelerator. Background Technology

[0002] The high-energy linear accelerator (commonly known as "Nollek" or "Nollek") includes one of the world-class Elekta Precise medical linear accelerators from Sweden, which is a world-class tumor radiotherapy device. It also includes a Siemens 6 / 15MV dual-speed electron beam linear accelerator, which can be used to carry out the most advanced three-dimensional conformal intensity-modulated radiotherapy and conventional radiotherapy planning, as well as other planning and positioning scans.

[0003] Linear accelerators are equipped with photon beams and electron beams, with electron beam energy ranging from 4MeV to 18MeV, offering at least six selectable levels and a maximum of 18MeV. This allows for precise mixing and adjustment of the radiation energy, accurately controlling the irradiation dose. In addition to conventional radiotherapy, it can also achieve precise radiotherapy techniques such as three-dimensional conformal radiotherapy, intensity-modulated radiotherapy, and volumetric rotational therapy, effectively killing tumor cells while avoiding normal human tissues near the tumor, thus reducing radiotherapy reactions.

[0004] Linear accelerators have the following drawbacks: during rotation, they are prone to hitting the treatment bed or the patient. However, the protective ring on the machine is usually tilted, which can lead to the machine head hitting the treatment bed without triggering the anti-collision device. If the collision is not stopped in time, it can cause secondary injury to the patient and damage to the equipment. Therefore, a linear accelerator anti-collision protection ring balancing device is proposed to solve the above problems. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a linear accelerator anti-collision protection ring balancing device, which aims to improve the existing technology where the machine head is prone to hitting the treatment bed or patient during rotation operation. However, the protection ring set on the machine is generally in an inclined state, which may cause the anti-collision assembly to be triggered even if the machine head hits the treatment bed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a linear accelerator anti-collision protection ring balancing device, comprising a linear accelerator body and a rotating disk, the rotating disk being fixedly installed on the front outer wall of the linear accelerator body, a frame being fixedly connected to the front outer wall of the rotating disk, an anti-collision mechanism being provided on the frame, and a protective mechanism being provided on the linear accelerator body, the anti-collision mechanism comprising an adjusting head frame, the adjusting head frame being fixedly connected to the bottom outer wall of the frame, mounting plates being fixedly connected to the front and rear outer walls of the adjusting head frame, a positioning hole being provided on the bottom inner wall of the mounting plate, a pin being inserted into the side inner wall of the positioning hole, a compression spring being fixedly connected to the bottom inner wall of the pin, a movable column being slidably connected to the bottom inner wall of the pin, a protective ring body being fixedly connected to the bottom outer wall of the movable column, a movable plate being slidably connected to the bottom inner wall of the mounting plate, a limit rod being fixedly connected to the front outer wall of the movable plate, and a telescopic spring being fixedly connected to the rear outer wall of the movable plate.

[0007] As a further description of the above technical solution: there are four positioning holes, and the four positioning holes are symmetrical to each other.

[0008] As a further description of the above technical solution: the end of the compression spring away from the insertion post is fixedly connected to the top outer wall of the movable post.

[0009] As a further description of the above technical solution: the positioning hole and the outer side wall of the insertion post are both fixedly connected with steel sleeves.

[0010] As a further description of the above technical solution: there are four movable plates in total, and the two ends of the telescopic spring are respectively fixedly connected to the left and right outer walls of the movable plates.

[0011] As a further description of the above technical solution: frosted pads are fixedly connected to the outer walls of the left and right sides of the movable plate.

[0012] This utility model has the following beneficial effects: 1. In this utility model, the elastic force of the compression spring enables the main body of the protective ring to automatically reset and maintain balance after being pressed by external contact, ensuring the timeliness and accuracy of subsequent anti-collision detection.

[0013] 2. In this utility model, by using the combination of the movable plate, the limiting rod and the telescopic spring, the main body of the protective ring can be easily disassembled and assembled without the need for cumbersome tools, which effectively simplifies the inspection and maintenance process and improves maintenance efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic front view of the overall anti-collision protection ring balancing device for a linear accelerator proposed in this utility model; Figure 2This is a schematic diagram showing the disassembled design of a collision protection ring balancing device for a linear accelerator proposed in this utility model. Figure 3 A schematic diagram of the anti-collision mechanism of the anti-collision protection ring balancing device for a linear accelerator proposed in this utility model. Figure 1 ; Figure 4 A schematic diagram of the anti-collision mechanism of the anti-collision protection ring balancing device for a linear accelerator proposed in this utility model. Figure 2 .

[0015] Legend: 1. Linear accelerator body; 2. Rotating disk; 3. Frame; 4. Anti-collision mechanism; 41. Adjusting head frame; 42. Mounting plate; 44. Positioning hole; 45. Insertion column; 46. Compression spring; 47. Movable column; 48. Protective ring body; 49. Movable plate; 410. Limiting rod; 411. Telescopic spring. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Reference Figures 1-3 This utility model provides an embodiment of a linear accelerator anti-collision protection ring balancing device, comprising a linear accelerator body 1 and a rotating disk 2. The rotating disk 2 is fixedly installed on the front outer wall of the linear accelerator body 1. A frame 3 is fixedly connected to the front outer wall of the rotating disk 2. An anti-collision mechanism 4 is provided on the frame 3. A protective mechanism 5 is provided on the linear accelerator body 1. The anti-collision mechanism 4 includes an adjusting head frame 41, which is the mounting base of the anti-collision mechanism 4 and is used to connect the frame 3 and other anti-collision components. The adjusting head frame 41 is fixedly connected to the bottom outer wall of the frame 3. Mounting plates 42 are fixedly connected to the front and rear outer walls of the adjusting head frame 41. The bottom inner wall of the mounting plate 42 is open. A positioning hole 44 is provided for inserting a plug 45 to achieve initial positioning and installation of the plug 45. The plug 45 is inserted into the inner side wall of the positioning hole 44. A compression spring 46 is fixedly connected to the inner bottom wall of the plug 45. A movable column 47 is slidably connected to the inner bottom wall of the plug 45. A protective ring body 48 is fixedly connected to the outer bottom wall of the movable column 47. The protective ring body 48 is in direct contact with the outside and is a key component for collision detection. Collision detection is triggered by its displacement. A movable plate 49 is slidably connected to the inner bottom wall of the mounting plate 42. A limit rod 410 is fixedly connected to the outer front wall of the movable plate 49. A telescopic spring 411 is fixedly connected to the outer rear wall of the movable plate 49.

[0018] Reference Figures 2-4 The end of the compression spring 46 away from the insertion post 45 is fixedly connected to the top outer wall of the movable post 47. There are four positioning holes 44, which are symmetrically arranged. The four symmetrically arranged positioning holes 44 can make the insertion post 45 evenly distributed, ensuring the force balance of the protective ring body 48 and improving the stability of the anti-collision mechanism 4. The positioning holes 44 and the side outer walls of the insertion post 45 are fixedly connected with steel sleeves. The steel sleeves can enhance the wear resistance of the contact parts between the positioning holes 44 and the insertion post 45, extend the service life of both, and avoid wear caused by frequent insertion and removal.

[0019] Reference Figures 3-4 The movable plate 49 has frosted pads fixedly connected to the outer walls on both sides. The frosted pads can increase the friction between the movable plate 49 and the mounting plate 42, making it convenient for personnel to operate and adjust. There are four movable plates 49 in total. The two ends of the telescopic spring 411 are fixedly connected to the outer walls on both sides of the movable plate 49 respectively.

[0020] Working principle: By inserting the pin 45 into the corresponding positioning hole 44, the compression spring 46 on both ends of the pin 45 pushes the protective ring body 48 to automatically reset and rebalance after being pressed by external contact. This prevents the protective ring body 48 from being touched and detected in time during subsequent collisions. When it is necessary to perform positioning inspection and maintenance on the protective ring body 48, the limiting rod 410 is moved by pulling the movable plate 49. The limiting rod 410 moves and separates from the inner wall of one side of the pin 45. Then, the pin 45 is pulled out from the positioning hole 44, allowing for convenient disassembly and assembly of the protective ring body 48, reducing the need for personnel to use cumbersome tools for maintenance.

[0021] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A balancing device for a collision protection ring of a linear accelerator, comprising a linear accelerator body (1) and a rotating disk (2), characterized in that: The rotating disk (2) is fixedly installed on the front outer wall of the linear accelerator body (1), and the front outer wall of the rotating disk (2) is fixedly connected to the frame (3), and the frame (3) is provided with an anti-collision mechanism (4). The anti-collision mechanism (4) includes an adjustable head frame (41), which is fixedly connected to the bottom outer wall of the frame (3). The front and rear outer walls of the adjustable head frame (41) are fixedly connected to mounting plates (42). The bottom inner wall of the mounting plate (42) is provided with a positioning hole (44). A pin (45) is inserted into the side inner wall of the positioning hole (44). A compression spring (46) is fixedly connected to the bottom inner wall of the pin (45). A movable column (47) is slidably connected to the bottom inner wall of the pin (45). A protective ring body (48) is fixedly connected to the bottom outer wall of the movable column (47). A movable plate (49) is slidably connected to the bottom inner wall of the mounting plate (42). A limit rod (410) is fixedly connected to the front outer wall of the movable plate (49). A telescopic spring (411) is fixedly connected to the rear outer wall of the movable plate (49).

2. The anti-collision protection ring balancing device for a linear accelerator according to claim 1, characterized in that: There are four positioning holes (44), and the four positioning holes (44) are symmetrical to each other.

3. The anti-collision protection ring balancing device for a linear accelerator according to claim 1, characterized in that: The end of the compression spring (46) away from the insert (45) is fixedly connected to the top outer wall of the movable column (47).

4. The anti-collision protection ring balancing device for a linear accelerator according to claim 1, characterized in that: The positioning hole (44) and the outer side wall of the insertion post (45) are both fixedly connected with steel sleeves.

5. The anti-collision protection ring balancing device for a linear accelerator according to claim 1, characterized in that: There are four movable plates (49), and the two ends of the telescopic spring (411) are respectively fixedly connected to the outer walls of the left and right sides of the movable plate (49).

6. The balancing device for a linear accelerator anti-collision protection ring according to claim 1, characterized in that: The outer walls on the left and right sides of the movable plate (49) are fixedly connected with frosted pads.

Images