Protective escalator structure for maintaining beam therapy equipment
By installing a protective escalator structure with sliding components and safety bars, the risk of falls during the maintenance of beam therapy equipment is eliminated, ensuring the safety of staff and guaranteeing the safety and convenience of the maintenance process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2026-03-13
AI Technical Summary
When repairing the beam therapy equipment, the staff were standing at an angle on the escalator, with the angle between their body and the length of the step greater than 90 degrees, posing a risk of falling and lacking effective safety protection measures.
A safety escalator structure was designed. By setting mounting plates and sliding grooves on the side wall of the handrail, a sliding component is slidably installed. The position of the sliding component is fixed by positioning components and mounting holes. The safety bar can rotate 180 degrees to the top of the step to provide safety protection.
It effectively prevents workers from falling during maintenance, ensures that the safety bar can be adjusted in height as needed, is simple and convenient to use, and improves the safety of the maintenance process.
Smart Images
Figure CN223991720U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of escalator technology, and in particular to a protective escalator structure for maintaining a beam therapy device. Background Technology
[0002] Particle therapy equipment is a high-end radiotherapy device used for cancer treatment. It precisely irradiates tumors using high-energy particle beams, minimizing damage to surrounding healthy tissues. The 180-degree rotating beam therapy utilizes a semi-circular rotating gantry and treatment bed to irradiate tumors from multiple angles. The 180-degree rotating beam therapy system includes a proton accelerator, beam transport lines, a 180-degree rotating gantry, a scanning treatment head, and a robotic treatment bed. The 180-degree rotating gantry is 13 meters long, has a rotation radius of 5.5 meters, and the rotating parts weigh 96 tons. Its isocentric rotation accuracy is better than 1 mm. A dedicated maintenance ladder is provided above the 180-degree rotating gantry for easy equipment maintenance.
[0003] It was found that when the beam therapy equipment malfunctions and needs repair, staff members climb the escalator to inspect the equipment. The staff members are in an inclined standing position on the escalator and the angle between the staff members' bodies and the length of the steps is greater than 90 degrees. Due to the height of the escalator and the lack of any protective measures during the repair, the staff members are at risk of falling at any time, which can easily lead to safety accidents. Utility Model Content
[0004] To address the risk of falls when workers are standing at an angle on escalators while maintaining beam therapy equipment, with the angle between their body and the length of the step exceeding 90 degrees, this application provides a protective escalator structure for maintaining beam therapy equipment.
[0005] The protective ladder structure for maintaining a beam therapy device provided in this application adopts the following technical solution:
[0006] A protective escalator structure for maintaining a beam therapy device includes a mounting plate disposed on the side wall of the handrail. The mounting plate is arranged parallel to the upward trajectory of the handrail. A sliding groove is formed on the mounting plate, and a plurality of mounting holes are evenly spaced on the mounting plate. A sliding component is slidably disposed in the sliding groove. A safety rod for safety protection is rotatably connected to one side of the sliding component. The rotation angle of the safety rod is 0-180 degrees. A positioning component for cooperating with the mounting holes is provided on the other side of the sliding component. The positioning component is used to limit the sliding of the sliding component.
[0007] By adopting the above technical solution, when the beam therapy equipment malfunctions and needs repair, the staff can climb the steps, slide the sliding component along the slide groove to the corresponding position, and fix the position of the sliding component by using the positioning component and the mounting hole. At the same time, the safety bar is rotated 180 degrees so that the safety bar is above the steps, thereby protecting the staff's body. This solves the problem that when repairing the beam therapy equipment, the staff are in an inclined standing position on the escalator and the angle between the staff's body and the length direction of the steps is greater than 90 degrees, which is prone to falling.
[0008] Optionally, the sliding assembly includes a slider that slides within the slide groove, a rotating column rotatably connected to the slider, and a positioning block slidably connected to the slider to limit the rotation of the rotating column. The slider is hollow, and one end of the rotating column is fixedly connected to the safety rod. The end of the rotating column extending into the inner cavity of the slider has a plurality of positioning holes evenly spaced upward in the axial direction. The end of the positioning block extending into the inner cavity of the slider can be inserted into the positioning holes. The slider is also provided with a reset assembly for driving the positioning block to reset.
[0009] By adopting the above technical solution, when the beam therapy equipment malfunctions and needs maintenance, the sliding slider is moved to the corresponding position and the positioning block is pulled out. Then, the safety rod is rotated 180 degrees so that it is above the step. At this time, the rotating column also rotates 180 degrees. Then, the positioning block is inserted into the matching positioning hole to restrict the rotation of the rotating column and ensure the fixation of the safety rod. Therefore, the sliding component can adjust the safety rod to different heights as needed, which is simple and convenient to use.
[0010] Optionally, the reset assembly includes a reset block that slides on the slider and a reset spring that is fixed on the reset block. The reset block is fixedly connected to the positioning block. A guide groove is provided on the slider. The reset block slides in the guide groove. The reset spring is disposed in the guide groove. One end of the reset spring away from the reset block is fixed to the bottom wall of the guide groove.
[0011] By adopting the above technical solution, when the positioning block is pulled out, the return spring is stretched and has elastic potential energy. After the safety rod is rotated 180 degrees and the positioning block is released, the return spring quickly restores its elastic deformation, thereby driving the positioning block back to its original position. This enables the positioning block to be accurately inserted into the positioning hole and achieves rapid reset of the positioning block.
[0012] Optionally, the positioning component includes a fixing block disposed on the slider and a pin that slides on the fixing block, the pin being insertable into the mounting hole.
[0013] By adopting the above technical solution, when in use, the pin is pulled out, the slider is moved to the desired position, and then the pin is inserted into the mounting hole to limit the sliding of the slider and thus fix the position of the slider.
[0014] Optionally, the safety bar is a telescopic bar, which includes a first tube fixedly connected to the rotating column and a second tube sliding in the inner cavity of the first tube.
[0015] By adopting the above technical solution, when the safety bar is not in use, the second tube is located inside the cavity of the first tube, thereby reducing the space occupied by the safety bar. When the safety bar is in use, the second tube is pulled outward so that the safety bar reaches its maximum length, thus blocking the worker's body and protecting the worker's personal safety.
[0016] Optionally, a baffle is provided on one side of the safety bar. The baffle is a telescopic plate. The baffle includes a first plate fixed to the first tube and a second plate sliding on the first plate. A connecting block is provided on the second tube, and the second plate is fixedly connected to the connecting block.
[0017] By adopting the above technical solution, when the safety bar is stretched, the baffle is also stretched. At this time, the second plate is pulled out. The baffle can increase the contact area with the worker's body, thereby blocking most of the worker's body and enhancing the safety of the maintenance process.
[0018] Optionally, the end of the positioning block away from the slide groove is provided with a pull ring for pulling out the positioning block.
[0019] By adopting the above technical solution, the pull ring design makes it easy for workers to pull the positioning block out of the slider cavity, making it simple and convenient to use.
[0020] In summary, this application includes at least one of the following beneficial technical effects:
[0021] 1. When the beam therapy equipment malfunctions and needs repair, the staff climbs the steps, slides the sliding component along the slide groove to the corresponding position, and uses the positioning component and mounting hole to fix the position of the sliding component. At the same time, the safety bar is rotated 180 degrees so that the safety bar is above the steps, thus providing safety protection for the staff. This solves the problem that when repairing beam therapy equipment, staff are in an inclined standing position on the escalator and the angle between the staff's body and the length of the steps is greater than 90 degrees, which easily leads to the risk of falling.
[0022] 2. When the beam therapy equipment malfunctions and needs maintenance, slide the slider to the corresponding position, pull out the positioning block, and then rotate the safety rod 180 degrees so that the safety rod is above the step. At this time, the rotating column also rotates 180 degrees. Then insert the positioning block into the matching positioning hole to limit the rotation of the rotating column and ensure the fixation of the safety rod. Therefore, the sliding component allows the safety rod to be adjusted to different heights as needed, which is simple and convenient to use.
[0023] 3. When the positioning block is pulled out, the return spring is stretched and has elastic potential energy. After the safety rod is rotated 180 degrees and the positioning block is released, the return spring quickly restores its elastic deformation, thereby driving the positioning block back to its original position. This allows the positioning block to be accurately inserted into the positioning hole and achieves rapid reset of the positioning block. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.
[0026] Figure 2 yes Figure 1 A magnified view of part A in the middle.
[0027] Figure 3 This is an exploded view of the sliding component and the positioning component in Embodiment 1 of this application.
[0028] Figure 4 This is a schematic diagram of the structure of the safety bar and baffle in Embodiment 1 of this application.
[0029] Figure 5 This is a schematic diagram of the pull ring structure in Embodiment 2 of this application.
[0030] Reference numerals: 1. Mounting plate; 2. Slide groove; 3. Mounting hole; 4. Sliding assembly; 5. Safety bar; 6. Positioning assembly; 7. Slider; 8. Rotating column; 9. Positioning block; 10. Positioning hole; 11. Reset assembly; 12. Reset block; 13. Reset spring; 14. Guide groove; 15. Fixing block; 16. Pin; 17. First tube; 18. Second tube; 19. Connecting block; 20. Baffle; 21. First plate; 22. Second plate; 23. Pull ring. Detailed Implementation
[0031] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0032] This application discloses a protective ladder structure for maintaining a beam therapy device.
[0033] Example 1
[0034] Reference Figure 1 The protective escalator structure for maintaining the beam therapy equipment includes a mounting plate 1, which is made of steel plate. The mounting plate 1 is fixed to the side wall of the handrail by bolts and is arranged parallel to the upward trajectory of the handrail. A sliding groove 2 is provided on the mounting plate 1, also parallel to the upward trajectory of the handrail. Several mounting holes 3 are also evenly spaced on the mounting plate 1.
[0035] Reference Figure 2 and Figure 3 In this embodiment, a sliding assembly 4 is slidably disposed within the slide groove 2. The sliding assembly 4 includes a slider 7, a rotating column 8, and a positioning block 9. The slider 7 slides within the slide groove 2 and is hollow, with a guide groove 14 formed on it. The rotating column 8 is cylindrical and rotatably connected to the inner cavity of the slider 7. One end of the rotating column 8 extends into the inner cavity of the slider 7, and several positioning holes 10 are evenly spaced axially upwards. The positioning block 9 is slidably connected to the slider 7, and one end of the positioning block 9 extending into the inner cavity of the slider 7 can be inserted into the positioning hole 10. By cooperating with the positioning hole 10, the position of the rotating column 8 can be fixed. When the beam therapy equipment malfunctions and needs maintenance, the staff climbs the steps, slides the slider 7 to the corresponding position, and then inserts the positioning block 9 into the positioning hole 10 to fix the rotating column 8.
[0036] Reference Figure 2 and Figure 3 To achieve rapid reset of the positioning block 9, this embodiment includes a reset assembly 11 on the slider 7. The reset assembly 11 includes a reset block 12 and a reset spring 13. The reset block 12 slides in the guide groove 14 and is bonded and fixed to the positioning block 9. The reset spring 13 is disposed in the guide groove 14, with one end fixed to the bottom end of the reset block 12 and the other end fixed to the bottom wall of the guide groove 14. When the positioning block 9 is pulled out, the reset spring 13 stretches and has elastic potential energy. After the positioning block 9 is released, the reset spring 13 quickly recovers its elastic deformation, thereby driving the positioning block 9 back to its original position, thus achieving precise insertion of the positioning block 9 into the positioning hole 10.
[0037] Reference Figure 3 and Figure 4Because the angle between the worker's body and the length of the step is greater than 90 degrees during maintenance, and there are no safety measures in place, there is a risk of workers falling off the escalator. Therefore, this embodiment includes a safety bar 5. To avoid occupying space on the escalator when the safety bar 5 is not in use, this embodiment rotatably connects the safety bar 5 to the rotating column 8. The safety bar 5 can rotate from 0 to 180 degrees. When not in use, the safety bar 5 is rotated to the outside of the handrail. When in use, the safety bar 5 is rotated 180 degrees so that it is positioned above the step, thus blocking the worker's body and providing safety protection. The safety bar 5 is designed as a telescopic bar, which reduces the space occupied by its length. The safety bar 5 includes a first tube 17 and a second tube 18. The first tube 17 is fixedly connected to the rotating column 8, and the second tube 18 slides inside the first tube 17 and is fixed inside the first tube 17 by bolts. When using the safety bar 5, the second tube 18 is pulled outward, extending the safety bar 5 to its maximum length.
[0038] Reference Figure 4 Because the contact area between the safety bar 5 and the worker is limited and cannot provide adequate protection, a baffle 20 is installed outside the safety bar 5 to increase the contact area with the worker's body and enhance the safety of the maintenance process. The baffle 20 is a telescopic plate, comprising a first plate 21 and a second plate 22. The first plate 21 is hollow, and the second plate 22 slides within the cavity of the first plate 21 and is fixed to the first plate 21 with bolts. Anti-slip textures are provided on the outer sides of both the first plate 21 and the second plate 22 to increase friction on the contact surfaces. The first plate 21 is bonded to the first tube 17, and a connecting block 19 is fixed to the side wall of the second plate 22. A second tube 18 is fixed to one side of the connecting block 19. When the safety bar 5 is stretched, the second plate 22 is pulled out, thus providing a shield for the worker.
[0039] Reference Figure 2 and Figure 3 In order to restrict the movement of the sliding component 4, a positioning component 6 is provided on one side of the sliding component 4 in this embodiment. The positioning component 6 includes a fixing block 15 and a pin 16. The fixing block 15 is fixedly connected to the slider 7. The pin 16 is slidably inserted into the fixing block 15 and inserted into the mounting hole 3. The pin 16 is threadedly connected to the mounting hole 3. The cooperation between the pin 16 and the mounting hole 3 can fix the position of the slider 7.
[0040] The implementation principle of a protective ladder structure for repairing a beam therapy device according to an embodiment of this application is as follows: When the beam therapy device malfunctions and needs repair, the worker climbs the steps, first pulls out the pin 16, moves the slider 7 to the corresponding position, then inserts the pin 16 into the mounting hole 3 to fix the position of the slider 7, then pulls out the positioning block 9, rotates the safety rod 5 180 degrees and then releases the positioning block 9. At this time, the positioning block 9 is inserted into the positioning hole 10, thereby fixing the position of the rotating column 8, and thus also fixing the position of the safety rod 5. Then, the safety rod 5 and the baffle 20 are stretched, the second tube 18 is stretched to its maximum length, and the second plate 22 is also stretched to its maximum length. The second plate 22 covers most of the worker's body, and at this time the worker can safely carry out the maintenance work.
[0041] Example 2
[0042] Reference Figure 3 and Figure 5 The difference between this embodiment and embodiment 1 is that, in order to facilitate the operator to pull the positioning block 9 out of the inner cavity of the slider 7, a pull ring 23 is also installed on the top of the positioning block 9. The pull ring 23 is made of plastic. The side of the pull ring 23 close to the positioning block 9 is bonded and fixed to the positioning block 9. When in use, pull the pull ring 23, and the positioning block 9 will be pulled out in the direction away from the positioning hole 10. The method of use is simple and convenient.
[0043] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A protective stairway structure for servicing a beam therapy apparatus, characterized by: The utility model provides a safety handrail, including the installation plate (1) set up on the handrail side wall, the installation plate (1) is arranged in parallel along the upper trajectory direction of handrail, is equipped with the sliding slot (2) on the installation plate (1), a plurality of installation holes (3) are evenly equipped with on the installation plate (1), the sliding component (4) is slidably arranged in the sliding slot (2), one side of the sliding component (4) is rotatably connected with the safety bar (5) for safety protection, the rotation angle of safety bar (5) is 0-180 degrees, the other side of the sliding component (4) is provided with the positioning assembly (6) for cooperating with the installation hole (3) and using, the positioning assembly (6) is used for limiting the sliding of sliding component (4).
2. A maintenance access ladder structure for a beam therapy apparatus as claimed in claim 1, wherein: The sliding component (4) includes a sliding block (7) sliding in the sliding slot (2), a rotating column (8) rotatably connected to the sliding block (7), and a positioning block (9) slidably connected to the sliding block (7) for limiting rotation of the rotating column (8). The sliding block (7) is hollow. One end of the rotating column (8) is fixedly connected to the safety bar (5). A plurality of positioning holes (10) are evenly arranged on the end of the rotating column (8) extending into the inner cavity of the sliding block (7) in an axial direction. The end of the positioning block (9) extending into the inner cavity of the sliding block (7) can be inserted into the positioning hole (10). The sliding block (7) further comprises a reset assembly (11) for resetting the positioning block (9).
3. A maintenance access ladder structure for a beam therapy apparatus as claimed in claim 2, wherein: The reset assembly (11) includes a reset block (12) sliding on the sliding block (7) and a reset spring (13) fixed to the reset block (12). The reset block (12) is fixedly connected to the positioning block (9). A guide groove (14) is formed in the sliding block (7). The reset block (12) slides in the guide groove (14). The reset spring (13) is arranged in the guide groove (14). One end of the reset spring (13) away from the reset block (12) is fixed to the bottom wall of the guide groove (14).
4. The stairway structure for servicing a beam therapy apparatus according to claim 2, wherein: The positioning assembly (6) includes a fixed block (15) arranged on the sliding block (7) and a bolt (16) sliding on the fixed block (15). The bolt (16) can be inserted into the installation hole (3).
5. The stairway structure for servicing a beam therapy apparatus according to claim 2, wherein: The safety bar (5) is a telescopic rod. The safety bar (5) includes a first tube (17) fixedly connected to the rotating column (8) and a second tube (18) sliding in the inner cavity of the first tube (17).
6. A maintenance access ladder structure for a beam therapy apparatus as claimed in claim 5, wherein: One side of the safety bar (5) is provided with a baffle (20). The baffle (20) is a telescopic plate. The baffle (20) includes a first plate (21) fixedly connected to the first tube (17) and a second plate (22) sliding on the first plate (21). The second tube (18) is provided with a connecting block (19). The second plate (22) is fixedly connected to the connecting block (19).
7. The stairway structure for servicing a beam therapy apparatus as defined in claim 2, wherein: One end of the positioning block (9) away from the sliding slot (2) is provided with a pull ring (23) for pulling out the positioning block (9).