Thread breaking prevention structure for treatment supporting equipment
By working together to guide, tension, and store the wire harnesses, the problems of tangling and breakage in the treatment equipment are solved, achieving stability and orderliness of the wire harnesses and ensuring the normal operation of the treatment equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-08
AI Technical Summary
During proton therapy, the wire harness is prone to tangling and breakage during adjustment between the treatment bed and the robotic arm, affecting the normal operation of the treatment equipment.
A guiding mechanism guides the wire harness, a tensioning mechanism adjusts the tension, and a storage mechanism automatically retracts and extends the wire harness to prevent tangling and breakage.
This effectively prevents the wire harness from getting tangled or broken with the robotic arm during bed adjustment, ensuring the stability and orderliness of the wire harness movement and guaranteeing the normal operation of the treatment equipment.
Smart Images
Figure CN224212197U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of wire harness protection, and in particular to a wire breakage prevention structure for a treatment support device. Background Technology
[0002] During proton therapy, to accurately locate the tumor site, the patient typically needs to lie on a treatment bed, which is adjusted by continuous oscillation between the bed and a robotic arm. This requires the treatment bed to be able to adjust at large angles, while the extension length and rotation angle of the robotic arm also need to be flexible.
[0003] Currently, to meet the wiring harness requirements during bed rotation, the conventional approach is to reserve extra length in the wiring harness and create wiring harness holes on the robotic arm to guide the wiring harness from the controller to the bed board. This ensures, to a certain extent, that the wiring harness has sufficient length for extension during bed movement.
[0004] However, because the wiring harness between the bed board and the robotic arm is exposed, it is easy for the harness to become tangled with the robotic arm during the adjustment of the bed board angle. Moreover, after repeated adjustments, the entire wiring harness is subjected to repeated pulling and friction, making it very prone to breakage. This can seriously affect the normal operation of the treatment support equipment and may even lead to interruption of the treatment process, adversely affecting the patient's treatment. Utility Model Content
[0005] To address the issue of exposed wiring harnesses easily becoming entangled with the robotic arm during bed adjustment, and even prone to breakage after multiple adjustments, this application provides a wire breakage prevention structure for a treatment support device.
[0006] The present application provides a wire breakage prevention structure for a treatment support device, which adopts the following technical solution:
[0007] A wire breakage prevention structure for a treatment support device includes a support frame fixed to the bottom of a bed board, and a storage box fixed to the bottom of the bed board. The support frame and the storage box are located on the same side. The treatment support device is provided with a guide mechanism for guiding the wire harness. The support frame is provided with a tensioning mechanism for adjusting the tension of the wire harness. The storage box is provided with a storage mechanism for automatically retracting and extending the wire harness.
[0008] By adopting the above technical solutions, the guiding mechanism guides the direction of the wire harness, ensuring it follows a preset path and guaranteeing the stability and orderliness of its movement. The tensioning mechanism adjusts the wire harness tension, maintaining a suitable level of tightness and preventing it from becoming entangled or broken by the robotic arm during bed adjustment due to improper tension. The storage mechanism automatically and promptly stores and releases excess or insufficient wire harness, further reducing the possibility of entanglement or breakage. This effectively improves the problems of exposed wire harnesses easily becoming entangled with the robotic arm during bed adjustment and the tendency for wire harnesses to break after multiple adjustments.
[0009] Optionally, the guiding mechanism includes two sets of guiding components and a limiting ring, with the two sets of guiding components fixed on the robotic arm and the limiting ring also fixed on the robotic arm.
[0010] By adopting the above technical solution, two sets of guiding components are fixed to the side wall of the robotic arm, which can guide the wire harness and make the wire harness arrangement more reasonable. The limiting ring is fixed to the robotic arm to further restrict the position of the wire harness.
[0011] Optionally, the guide assembly includes a mounting plate and two guide wheels, the shafts of the two guide wheels being fixed to the mounting plate, which is mounted on the robotic arm.
[0012] By adopting the above technical solution, the mounting plate is used to install the guide assembly on the robotic arm. The shafts of the two guide wheels are fixed to the mounting plate, and the wiring harness passes between the two guide wheels for better guidance and restraint of the wiring harness.
[0013] Optionally, the tensioning mechanism includes two limiting grooves formed on the support frame, two rollers disposed in the support frame, and two springs. The shaft of one of the rollers slides in the limiting groove, and the shaft of the other roller is fixed in the support frame. The two springs are hung on both ends of the shaft of the roller sliding in the limiting groove, and the bottom ends of the two springs are fixed inside the support frame.
[0014] By adopting the above technical solution, the limiting groove allows the roller's axis of rotation to slide along a specific trajectory, ensuring the stability of the movement. The two rollers allow the wire harness to move smoothly, reducing friction and preventing excessive wear. The two springs can automatically adjust their positions according to changes in the wire harness tension, thereby maintaining appropriate tension in the wire harness.
[0015] Optionally, the storage mechanism includes a connecting rod that rotates on the inner wall of the storage box, a roller coaxially fixed on the connecting rod, and two torsion springs sleeved on the connecting rod. One end of each torsion spring is fixed to the inner wall of the storage box, and the other end of each torsion spring is fixed to the rotating shaft of the roller. The storage box also has two through holes.
[0016] By adopting the above technical solution, the connecting rod can rotate inside the storage box, driving the roller coaxially fixed on the connecting rod to rotate accordingly. When the wire harness is pulled out or retracted, the roller can rotate smoothly. The elastic force of the torsion spring enables the roller to have the ability to automatically retract the wire, allowing the wire harness to automatically wind onto the roller after use, realizing the function of automatic wire harness retraction and unwinding.
[0017] Optionally, the storage mechanism further includes a collar fixed to the storage box, and a fixing clip is fixed to the roller.
[0018] By adopting the above technical solution, the collar fixed on the storage box can further constrain the wire harness, and the fixing clip on the roller can easily fix the wire harness, which can better cooperate with the storage mechanism to automatically retract and extend the wire.
[0019] Optionally, two limiting plates are fixed inside the support frame, and both limiting plates pass through the rotating shaft of the roller.
[0020] By adopting the above technical solution, the two limiting plates set in the bearing frame can prevent the wire harness from coming off the roller during the tension adjustment process, thus ensuring the stable operation of the tensioning mechanism.
[0021] Optionally, two baffles are fixed inside the storage box, and both baffles pass through the connecting rod.
[0022] By adopting the above technical solution, the two baffles fixed inside the storage box can protect the wire harness, prevent the wire harness from falling off the roller, and ensure the stable operation of the automatic wire harness storage function of the storage mechanism.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. By setting a guide component on the treatment support device, the direction of the wire harness can be guided, so that the wire harness is arranged along a preset path, ensuring the stability and orderliness of the wire harness movement;
[0025] 2. By incorporating a tensioning mechanism, the tension of the wire harness can be adjusted to maintain a suitable level of tightness. This prevents the wire harness from becoming entangled or breaking due to improper tension with the robotic arm.
[0026] 3. By setting up a storage mechanism, when the bed board angle is adjusted, excess or insufficient wires can be automatically stored and released in a timely manner, further reducing the possibility of wire tangling. Attached Figure Description
[0027] 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.
[0028] Figure 1 This is an overall schematic diagram of the anti-breakage structure provided in the embodiments of this application;
[0029] Figure 2 This is a partial schematic diagram of the bed board provided in the embodiments of this application, used to illustrate the positional relationship between the tensioning mechanism, the storage mechanism and the bed board;
[0030] Figure 3 This is provided in the embodiments of this application. Figure 1 A magnified view of a section at point A in the middle;
[0031] Figure 4 This is a schematic diagram of the tensioning mechanism provided in the embodiments of this application;
[0032] Figure 5 This is a cross-sectional view of the storage box provided in the embodiment of this application, used to show the storage mechanism.
[0033] Reference numerals: 1. Support frame; 2. Storage box; 3. Guide mechanism; 31. Guide assembly; 311. Mounting plate; 312. Guide wheel; 32. Limiting ring; 4. Tensioning mechanism; 41. Limiting groove; 42. Roller; 43. Spring; 5. Storage mechanism; 51. Connecting rod; 52. Roller; 53. Torsion spring; 54. Through hole; 55. Collar; 56. Fixing clamp; 6. Limiting plate; 7. Covering plate. Detailed Implementation
[0034] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0035] This application discloses a wire breakage prevention structure for a treatment support device.
[0036] Reference Figure 1 A wire breakage prevention structure for a therapeutic support device includes a support frame 1 and a storage box 2 located on the same side as the support frame 1, wherein both the support frame 1 and the storage box 2 are fixed to the bottom of the bed board.
[0037] Reference Figure 2 A guide mechanism 3 is provided on the treatment support device, a tensioning mechanism 4 is provided inside the support frame 1, and a storage mechanism 5 is provided inside the storage box 2.
[0038] Reference Figure 1 and Figure 2The wire harness first passes through two sets of guide components 31 set on the robotic arm, then passes through the limiting ring 32, guiding the wire harness to the tensioning mechanism 4. After being adjusted by the tensioning mechanism 4, the wire harness enters the storage mechanism 5 from the storage box 2.
[0039] The guiding mechanism 3 guides the wire harness along a preset path during the bed adjustment process. The tensioning mechanism 4 adjusts the tension of the wire harness, ensuring it remains at a suitable level to prevent tangling or breakage with the robotic arm due to improper tension. During bed adjustment, the wire harness is automatically extended and retracted by the storage mechanism 5, maintaining a suitable length that allows for robotic arm rotation without tangling or breakage. The coordinated operation of these three mechanisms ensures the stability and orderliness of the wire harness during bed adjustment, preventing tangling or breakage with the robotic arm.
[0040] Reference Figure 1 and Figure 3 The guiding mechanism 3 includes two sets of guiding components 31 and a limiting ring 32. The two sets of guiding components 31 are fixed to the robotic arm and are used to guide the wire harness on the robotic arm. The limiting ring 32 is also fixed to the robotic arm. The limiting ring 32 further restricts the position of the wire harness, preventing the exposed wire harness from getting tangled with the robotic arm during bed adjustment and preventing the wire harness from breaking after multiple adjustments.
[0041] Reference Figure 3 The guide assembly 31 includes a mounting plate 311 and two guide wheels 312. The mounting plate 311 is used to mount the guide assembly 31 onto the robotic arm. The axles of the two guide wheels 312 are fixed to the mounting plate 311. The wire harness passes between the two guide wheels 312, so that the guide wheels 312 can guide and limit the wire harness.
[0042] Reference Figure 4 The tensioning mechanism 4 includes two limiting grooves 41, two rollers 42, and two springs 43. The two rollers 42 are sequentially arranged within the support frame 1 along the length of the bed board, and the two limiting grooves 41 are symmetrically arranged on the support frame 1. The shaft of one roller 42 is embedded in the limiting groove 41, allowing it to slide within the groove. The width of the limiting groove 41 is the same as the diameter of the roller 42's shaft, preventing it from dislodging from the groove. The shaft of the other roller 42 is fixed within the support frame 1. The surfaces of both rollers 42 are covered with a soft rubber material to increase friction with the wire harness and reduce wear. The two springs 43 are hung at both ends of the roller 42's shaft within the limiting grooves 41, and the bottom ends of both springs 43 are fixed inside the support frame 1.
[0043] The wire harness passes over the roller 42 located in the limiting groove 41 and wraps around the bottom of another roller 42. When the wire harness tension is high, the spring 43 is compressed, causing the connecting rod 51 to move downward within the limiting groove 41, absorbing some of the tension and preventing the wire harness from breaking due to excessive tension. When the wire harness tension is low, the spring 43 is released, pulling the connecting rod 51 upward, keeping the wire harness at a suitable tension and preventing it from becoming entangled with the robotic arm during bed adjustment due to slack.
[0044] Reference Figure 4 Two limiting plates 6 are fixed inside the support frame 1, and both limiting plates 6 pass through the rotating shafts of the two rollers 42. The limiting plates 6 can prevent the wire harness from detaching from the rollers 42 during tension adjustment, ensuring the stable operation of the tensioning mechanism 4.
[0045] Reference Figure 5 The storage mechanism 5 includes a connecting rod 51, a roller 52, two torsion springs 53, two through holes 54, a collar 55, and a fixing clamp 56. The connecting rod 51 rotates on the inner wall of the storage box 2, and the roller 52 is coaxially fixed to the connecting rod 51. The two torsion springs 53 are respectively sleeved on both ends of the connecting rod 51, with one end of the torsion spring 53 fixed to the inner wall of the storage box 2 and the other end fixed to the connecting rod 51. The two through holes 54 are respectively opened on the front and rear sides of the storage box 2 to facilitate the entry and exit of the wire harness. The collar 55 is fixed to the storage box 2 to further constrain the wire harness. The fixing clamp 56 is fixed to the roller 52 to fix the wire harness.
[0046] Reference Figure 1 , Figure 2 and Figure 5 The wire harness enters the storage box 2 through the front through-hole 54, passes through the collar 55, and is wound around the roller 52. The length of the wound wire harness is sufficient to meet the maximum rotation range of the robotic arm. Then, the wire harness is fixed to the fixing clamp 56 to ensure that the wire harness will not loosen or fall off during storage and use. Then, leaving a slack in the wire harness, and the slack length must not be less than the winding length, the wire harness is fixed to the rear through-hole 54.
[0047] The storage box 2 contains a spare wire harness, which allows the spare wire harness to be rewound onto the roller 52 during the automatic release process, thus not affecting the normal operation of the storage mechanism 5.
[0048] Reference Figure 5 Two baffles 7 are fixed inside the storage box 2, and both baffles 7 pass through the connecting rod 51. The baffles 7 can play a protective role, preventing the wire harness from coming off the roller 52 during automatic winding and unwinding, and ensuring the stable operation of the storage mechanism 5.
[0049] Reference Figure 5When the robotic arm's rotation amplitude increases, it generates tension on the wiring harness. The harness then drives the roller 52, which is coaxially fixed to the connecting rod 51, to rotate. This causes the torsion springs 53, which are fitted at both ends of the connecting rod 51, to deform and store elastic potential energy. As the roller 52 rotates, the wiring harness overcomes the relatively small tension of the torsion springs 53, allowing the harness to unwind from the roller 52. The length of the released harness is adapted to the robotic arm's rotation amplitude. Furthermore, since there is slack in the wiring harness within the fixing clamp 56 and the rear through hole 54, it does not affect the unwinding and rewinding process. When the robotic arm's rotation amplitude decreases, the elastic potential energy of the torsion springs 53 is released, causing the roller 52 to reverse and rewind the harness. The harness is then re-wound orderly onto the roller 52, and the collar 55 and fixing clamp 56 continuously constrain the harness, ensuring that it remains neat and undisturbed throughout the release and retraction process, meeting the robotic arm's movement requirements.
[0050] The implementation principle of the anti-breakage structure for a treatment support device according to this application embodiment is as follows: Through the coordinated operation of the tensioning mechanism 4, the storage mechanism 5, and the guiding mechanism 3, the entanglement and breakage of the wire harness with the robotic arm are prevented during the adjustment of the bed board. Specifically, the guiding mechanism 3 guides the wire harness, ensuring its orderly direction. The tensioning mechanism 4 automatically adjusts according to the wire harness tension, maintaining a suitable level of tension. The storage mechanism 5 automatically retracts and extends the wire harness using the elasticity of the torsion spring 53, reducing exposed wires.
[0051] 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 "a" or "an," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising," "including," and similar terms mean that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including," and their equivalents, but 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.
[0052] 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 wire breakage prevention structure for a therapeutic support device, characterized in that: The device includes a support frame (1) fixed to the bottom of the bed board, and a storage box (2) fixed to the bottom of the bed board. The support frame (1) and the storage box (2) are located on the same side. The treatment support device is provided with a guide mechanism (3) for guiding the wire harness. The support frame (1) is provided with a tensioning mechanism (4) for adjusting the tension of the wire harness. The storage box (2) is provided with a storage mechanism (5) for automatically storing and retrieving the wire harness.
2. The anti-breakage wire structure for a treatment support device according to claim 1, characterized in that: The guiding mechanism (3) includes two sets of guiding components (31) and a limiting ring (32). The two sets of guiding components (31) are fixed on the robotic arm, and the limiting ring (32) is also fixed on the robotic arm.
3. The anti-breakage wire structure for a treatment support device according to claim 2, characterized in that: The guide assembly (31) includes a mounting plate (311) and two guide wheels (312), the shafts of which are fixed on the mounting plate (311), which is mounted on the robotic arm.
4. The anti-breakage wire structure for a treatment support device according to claim 1, characterized in that: The tensioning mechanism (4) includes two limiting grooves (41) opened on the support frame (1), two rollers (42) set in the support frame (1), and two springs (43). The shaft of one of the rollers (42) slides in the limiting groove (41), and the shaft of the other roller (42) is fixed in the support frame (1). The two springs (43) are hung on both ends of the shaft of the roller (42) that slides in the limiting groove (41), and the bottom ends of the two springs (43) are fixed inside the support frame (1).
5. The anti-breakage wire structure for a treatment support device according to claim 1, characterized in that: The storage mechanism (5) includes a connecting rod (51) that rotates on the inner wall of the storage box (2), a roller (52) that is coaxially fixed on the connecting rod (51), and two torsion springs (53) sleeved on the connecting rod (51). One end of each torsion spring (53) is fixed on the inner wall of the storage box (2), and the other end of each torsion spring (53) is fixed on the rotating shaft of the roller (52). The storage box (2) also has two through holes (54).
6. The anti-breakage wire structure for a treatment support device according to claim 5, characterized in that: The storage mechanism (5) also includes a collar (55) fixed on the storage box (2), and a fixing clip (56) is fixed on the roller (52).
7. The anti-breakage wire structure for a treatment support device according to claim 1, characterized in that: The support frame (1) has two limiting plates (6) fixed inside, and both limiting plates (6) pass through the rotating shaft of the roller (42).
8. The anti-breakage wire structure for a treatment support device according to claim 1, characterized in that: The storage box (2) has two baffles (7) fixed inside, and both baffles (7) pass through the connecting rod (51).