Radiotherapy quality control one-dimensional water tank and fixing device

Abstract

The utility model discloses a radiotherapy quality control one -dimensional water tank and fixing device relates to radiotherapy technical field, including box and platen, the top of box is provided with the liquid adding mouth, the surface of box has drawn upper crosshair, the bottom of box inner chamber has drawn lower crosshair with upper crosshair cooperation, the side of box is fixedly connected with switch valve, the inside fixedly connected with the entering pipe of box, the one end of entering pipe extends to the outside of box, the top of platen places the box, this radiotherapy quality control one -dimensional water tank and fixing device, through being provided with box, locating plate and first fixed block, can through two locating plate and first fixed block, the left and right position of telescopic cylinder is limited, thereby limiting the position of box, prevents when adjusting the level of box, the position of box appears left and right deviation, influences the positioning accuracy.

Description

Technical Field

[0001] This utility model relates to the field of radiotherapy technology, specifically to a one-dimensional water tank and fixation device for radiotherapy quality control. Background Technology

[0002] Existing water tanks used for absolute dose measurement require placement on the treatment bed and positioning. The tank has a crosshair at its bottom. The process involves moving the tank and treatment bed to align the projection of the crosshair of the accelerator's small head with the crosshair below the tank. Then, the four nuts at the bottom of the tank are adjusted, and a spirit level is used to ensure all four sides are level. However, in actual clinical practice, leveling is difficult, and the tank's position on the bed is not fixed. Even after adjusting the leveling nuts, the tank often shifts after initial alignment, requiring repeated readjustment, which is time-consuming and inefficient. Furthermore, the detector column in the center of the tank obstructs the projection of the crosshair during alignment, affecting positioning and alignment. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a one-dimensional water tank and fixation device for radiotherapy quality control, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a one-dimensional water tank and fixing device for radiotherapy quality control, comprising a tank body and a platform. The top of the tank body has a liquid inlet. An upper crosshair is drawn on the surface of the tank body. A lower crosshair, corresponding to the upper crosshair, is drawn on the bottom of the inner cavity of the tank body. A switch valve is fixedly connected to the side of the tank body. An inlet pipe is fixedly connected inside the tank body, with one end extending to the outside of the tank body. The tank body is placed on top of the platform. Several telescopic cylinders are installed at the bottom of the tank body. Nuts are placed below each telescopic cylinder. A sliding screw is fixedly connected inside each nut. The top end of each sliding screw extends into the telescopic cylinder. A slider is installed on the outside of the sliding screw. The outside of the slider is fixedly connected to the inside of the telescopic cylinder. A base is rotatably connected to the bottom end of the sliding screw, located below the nut, via a bearing.

[0005] Preferably, the fixing device of the radiotherapy quality control one-dimensional water tank includes positioning grooves. Several positioning grooves are provided on both sides of the platform. Positioning plates are placed on the top of the platform and on both sides of the tank. Limiting plates are fixedly connected to the top of the positioning plates. Limiting grooves are provided on the inner side of the limiting plates. The inner side of the limiting grooves is in contact with the outer side of the telescopic cylinder.

[0006] Preferably, a second fixing block is fixedly connected to the bottom of one end of each positioning plate, and one end of each second fixing block is inserted into the corresponding positioning groove.

[0007] Preferably, two first fixing blocks are fixedly connected to the top of the other end of the positioning plate. A rotating shaft is rotatably connected between the two first fixing blocks via a bearing. A push handle is fixedly sleeved on the outer side of the rotating shaft. A spring is fixedly connected to one side of the inner cavity of the positioning plate. A push post is fixedly connected to one end of each spring. One end of each push post extends to the outer side of the positioning plate and contacts the outer side of the push handle through the arc end of one end of the push post. The bottom end of each push post extends to the bottom of the positioning plate and is fixedly connected to a positioning block. One end of each positioning block is inserted into the corresponding positioning groove.

[0008] Preferably, friction rings are fixedly connected to the inner side of the first fixing block and the outer side of the rotating shaft, and friction sleeves that cooperate with the friction rings are fixedly connected to the outer sides of both ends of the rotating shaft.

[0009] Preferably, a spirit level is fixedly connected to each of the four corners of the top of the box.

[0010] This utility model provides a one-dimensional water tank and fixation device for radiotherapy quality control, which has the following beneficial effects: 1. The radiotherapy quality control one-dimensional water tank and fixing device, by setting up a tank body, positioning plates and a first fixing block, can limit the left and right positions of the telescopic cylinder through two sets of positioning plates and the first fixing block, thereby limiting the position of the tank body and preventing the position of the tank body from shifting left and right when adjusting the level of the tank body, which would affect the positioning accuracy.

[0011] 2. The radiotherapy quality control one-dimensional water tank and fixing device, by being equipped with a level and an upper crosshair, can easily adjust the level of the tank, and the upper crosshair prevents the crosshair from being affected by the detector projection. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a schematic diagram of the rear view structure of this utility model; Figure 4 This is a top view of the first fixing block of this utility model; Figure 5 This is a schematic diagram of the internal structure of the telescopic cylinder of this utility model; Figure 6 This is a schematic diagram of the internal structure of the positioning plate of this utility model; Figure 7 This is a top view of the internal structure of the box body of this utility model; Figure 8This is a schematic diagram of a set of positioning plates and limiting plates of this utility model.

[0013] In the diagram: 1. Box body; 2. Telescopic cylinder; 3. Slider; 4. Sliding screw; 7. Nut; 8. Liquid inlet; 9. Upper crosshair; 10. Inlet pipe; 11. Switch valve; 12. Platform; 13. Limit plate; 14. Positioning plate; 15. First fixing block; 16. Push column; 17. Spring; 18. Positioning block; 19. Rotating shaft; 20. Push handle; 21. Friction ring; 22. Positioning groove; 23. Second fixing block; 24. Lower crosshair; 25. Level; 26. Limit groove; 28. Base. Detailed Implementation

[0014] 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.

[0015] Example 1 Please see Figures 1 to 8 This utility model provides a technical solution: a one-dimensional water tank and fixing device for radiotherapy quality control, including a tank body 1 and a platform 12. The top of the tank body 1 is provided with a liquid inlet 8. The surface of the tank body 1 is marked with an upper cross mark 9. The bottom of the inner cavity of the tank body 1 is marked with a lower cross mark 24 that matches the upper cross mark 9. A switch valve 11 is fixedly connected to the side of the tank body 1. An inlet pipe 10 is fixedly connected to the inside of the tank body 1. One end of the inlet pipe 10 extends to the outside of the tank body 1. The tank body 1 is placed on the top of the platform 12. Several telescopic cylinders 2 are installed at the bottom of the tank body 1. Nuts 7 are placed below each telescopic cylinder 2. A sliding screw 4 is fixedly connected inside each nut 7. The top of each sliding screw 4 extends into the inside of the telescopic cylinder 2. A slider 3 is installed and connected to the outside of the sliding screw 4. The inside of the slider 3 and the surface of the sliding screw 4 are threaded together to form a screw drive assembly. The outside of the slider 3 is fixedly connected to the inside of the telescopic cylinder 2. A base 28 is rotatably connected to the bottom end of the sliding screw 4 and located below the nut 7.

[0016] The fixing device of the radiotherapy quality control one-dimensional water tank includes positioning grooves 22. Several positioning grooves 22 are opened on both sides of the platform 12. Positioning plates 14 are placed on the top of the platform 12 and on both sides of the tank body 1. Limiting plates 13 are fixedly connected to the top of the positioning plates 14. Limiting grooves 26 are opened on the inner side of the limiting plates 13. The inner side of the limiting grooves 26 is in contact with the outer side of the telescopic cylinder 2. The position of the telescopic cylinder 2 and the tank body 1 is limited by the limiting grooves 26.

[0017] Each of the bottom ends of the positioning plate 14 is fixedly connected to a second fixing block 23. One end of each second fixing block 23 is inserted into the corresponding positioning groove 22. The positioning plate 14 is positioned by the second fixing block 23 and the positioning groove 22.

[0018] Two first fixing blocks 15 are fixedly connected to the top of the other end of the positioning plate 14. A rotating shaft 19 is rotatably connected between the two first fixing blocks 15. A push handle 20 is fixedly sleeved on the outer side of the rotating shaft 19. A spring 17 is fixedly connected to one side of the inner cavity of the positioning plate 14. A push post 16 is fixedly connected to one end of each spring 17. One end of each push post 16 extends to the outer side of the positioning plate 14 and contacts the outer side of the push handle 20 through the arc end of one end of the push post 16. The bottom end of each push post 16 extends to the bottom of the positioning plate 14 and is fixedly connected to a positioning block 18. One end of each positioning block 18 is inserted into the corresponding positioning groove 22. The positioning plate 14 is positioned by the positioning block 18 and the positioning groove 22.

[0019] Friction rings 21 are fixedly connected to the inner side of the first fixing block 15 and the outer side of the rotating shaft 19. Friction sleeves that cooperate with the friction rings 21 are fixedly connected to the outer sides of both ends of the rotating shaft 19. When it is necessary to unlock the positioning plate 14, the user rotates the push handle 20, which causes the push handle 20 to drive the rotating shaft 19 to reset and rotate, so that the spring 17 pushes the push column 16 and the positioning block 18 to move, so that one end of the positioning block 18 moves out of the limiting groove 26, thereby releasing the limiting fixation of the positioning plate 14.

[0020] Example 2 Please see Figures 1 to 3 This utility model provides a technical solution: a level 25 is fixedly connected to each of the four corners of the top of the box 1, and the level of the box 1 is adjusted by the level 25.

[0021] In summary, when using this one-dimensional water tank and fixing device for radiotherapy quality control, the tank body 1 is placed on top of the platform 12 of the radiotherapy table. Then, a positioning plate 14 is placed on top of the platform 12, and the second fixing block 23 is moved into the positioning groove 22. Then, the user pulls the push handle 20, causing the push handle 20 to drive the rotating shaft 19 to rotate, which in turn pushes the push column 16 and the positioning block 18 to move, so that one end of the positioning block 18 is inserted into the positioning groove 22. Then, another positioning plate 14 is placed on top of the platform 12, so that the limiting plate 13 on this positioning plate 14 is positioned on the other positioning plate. Above 14, the user pulls the push handle 20, causing the push handle 20 to drive the rotating shaft 19 to rotate, causing the push handle 20 to push the push column 16 and the positioning block 18 to move, so that one end of the positioning block 18 is inserted into the positioning groove 22. At this time, the limiting groove 26 covers the outside of the telescopic cylinder 2, limiting the position of the box 1. Then, the nut 7 is rotated, causing the nut 7 to drive the sliding screw 4 to rotate, causing the sliding screw 4 to drive the slider 3 to move the telescopic cylinder 2 upward. By observing the level displayed by the level ruler 25, the level of the box 1 is adjusted to prevent the cross from being affected by the detector projection.

[0022] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The installation methods between equipment are also the same as conventional installation methods in the prior art. For example, the two ends of the shaft-shaped parts are connected by bearings, the connection position of the valve component is provided with anti-leakage rubber strips, the outside of the threaded rod or screw is provided with dust cover, and the equipment can be driven by either built-in battery or external power supply. The control method is automatic control by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, this utility model will not explain the control method and circuit connection in detail. The external controller mentioned in the specification can play a control role for the electrical components mentioned in this article, and the external controller is a conventional known device.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A one-dimensional water tank for radiotherapy quality control, comprising a tank body (1) and a platform (12), characterized in that: The top of the box (1) is provided with a liquid filling port (8). The surface of the box (1) is marked with an upper crosshair (9). The bottom of the inner cavity of the box (1) is marked with a lower crosshair (24) that matches the upper crosshair (9). A switch valve (11) is fixedly connected to the side of the box (1). An inlet pipe (10) is fixedly connected inside the box (1). One end of the inlet pipe (10) extends to the outside of the box (1). The box (1) is placed on the top of the platform (12). (1) has several telescopic cylinders (2) installed at the bottom. Nuts (7) are placed below each telescopic cylinder (2). Sliding screws (4) are fixedly connected inside each nut (7). The top of each sliding screw (4) extends into the telescopic cylinder (2). A slider (3) is installed on the outside of the sliding screw (4). The outside of the slider (3) is fixedly connected to the inside of the telescopic cylinder (2). A base (28) is rotatably connected to the bottom of the sliding screw (4) and below the nut (7).

2. The one-dimensional water tank for radiotherapy quality control according to claim 1, characterized in that: The fixing device of the radiotherapy quality control one-dimensional water tank includes a positioning groove (22). Several positioning grooves (22) are provided on both sides of the platform (12). Positioning plates (14) are placed on the top of the platform (12) and on both sides of the tank (1). Limiting plates (13) are fixedly connected to the top of the positioning plates (14). Limiting grooves (26) are provided on the inner side of the limiting plates (13). The inner side of the limiting grooves (26) is in contact with the outer side of the telescopic cylinder (2).

3. The one-dimensional water tank for radiotherapy quality control according to claim 2, characterized in that: The bottom of one end of each positioning plate (14) is fixedly connected to a second fixing block (23), and one end of each second fixing block (23) is inserted into the corresponding positioning groove (22).

4. The one-dimensional water tank for radiotherapy quality control according to claim 3, characterized in that: Two first fixing blocks (15) are fixedly connected to the top of the other end of the positioning plate (14). A rotating shaft (19) is rotatably connected between the two first fixing blocks (15). A push handle (20) is fixedly sleeved on the outside of the rotating shaft (19). A spring (17) is fixedly connected to one side of the inner cavity of the positioning plate (14). A push column (16) is fixedly connected to one end of each spring (17). One end of each push column (16) extends to the outside of the positioning plate (14) and contacts the outside of the push handle (20) through the arc end of one end of the push column (16). The bottom end of each push column (16) extends to the bottom of the positioning plate (14) and is fixedly connected to a positioning block (18). One end of each positioning block (18) is inserted into the corresponding positioning groove (22).

5. A one-dimensional water tank for radiotherapy quality control according to claim 4, characterized in that: Friction rings (21) are fixedly connected to the inner side of the first fixing block (15) and the outer side of the rotating shaft (19), and friction sleeves that cooperate with the friction rings (21) are fixedly connected to the outer sides of both ends of the rotating shaft (19).

6. The one-dimensional water tank for radiotherapy quality control according to claim 1, characterized in that: A level (25) is fixedly connected to each of the four corners of the top of the box (1).

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