A radioactive source gripping instrument
By combining a gear adjuster and a wheel rope adjuster with a steel cable design, the problems of large weight and many parts in existing radiation source grasping instruments are solved, achieving easy operation and low-cost maintenance, and improving the convenience of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN NUCLEAR SAFETY TECH CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-06-12
AI Technical Summary
Existing radioactive source retrieval devices are heavy, have many parts, high maintenance costs, and are inconvenient to operate due to their complex linkage structure.
The design combines a gear adjuster and a wheel rope adjuster with a steel cable. Through the meshing of the gear and the traction of the steel cable, the gripper can be easily opened and closed, reducing the number of parts and improving operational flexibility.
The weight of the equipment was reduced, the operation process was simplified, maintenance costs were reduced, and the convenience and sustainability of operation were improved.
Smart Images
Figure CN224347828U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical auxiliary tools technology, specifically a radiation source clamping device. Background Technology
[0002] Radiotherapy, medical imaging, or flaw detection often involve the use and transfer of radioactive materials.
[0003] The existing radioactive source gripping devices mostly use a linkage structure of connecting rods and worm gears for telescopic adjustment of the long handles. As a result, there are many parts, the devices are heavy, which makes it inconvenient for operators to operate, and the repair costs are high when many parts need to be replaced after damage. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a radiation source grasping device, which solves the problems of heavy connecting rods, numerous rigid stress-bearing components, and high cost of replacing damaged parts in existing radiation source grasping devices.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a radioactive source grasping device, comprising a gear adjuster, a long handle, a wheel rope adjuster, and a steel cable. The gear adjuster and the wheel rope adjuster are respectively installed on the upper and lower sides of the long handle, and the steel cable is installed inside the long handle. The gear adjuster is mechanically connected to the wheel rope adjuster through the traction of the steel cable.
[0006] Preferably, the gear adjuster has a housing groove, a gear, and a rack. The gear meshes with the rack, the rack is vertically installed inside the housing groove, there are two gears and they are respectively installed on the left and right sides of the housing groove, and the bottom end of the rack is welded to the top end of the steel cable.
[0007] The gears create a meshing clamping action between the left and right ends of the rack, allowing the rack to rise and fall, which in turn drives other components of the radiation source gripping device to work. For example, the rack supports the spring tube to adapt to the opening and closing of the grippers, and the steel cable works in conjunction with the rack's rise and fall to control the opening and closing of the grippers.
[0008] Preferably, the toothed bar has a rod end, a spring tube, and a buckle. The top of the rod end is tightly attached to the spring tube, and the buckle is fastened together with the spring tube. The buckle is fixedly installed on the top of the rod end and is installed on the rear side of the spring tube, with the buckle end protruding from the top.
[0009] By wrapping the top of the spring tube from the rear with a fastener, the rod end and the spring tube can be matched with a certain degree of support and linkage for lateral and longitudinal vibration adjustment.
[0010] Preferably, the rope adjuster includes a housing, a guide wheel, a frame, a trigger handle, and a winding wheel. The winding wheel is fixed on the top of the frame, the guide wheel is installed at the center of the housing, the trigger handle is axially connected to the winding wheel via a rotating shaft, and the winding wheel is driven by the traction of the steel cable and the guide wheel.
[0011] By utilizing the pulley traction structure based on physics and engineering mechanics, the guide wheel and winding wheel can be easily built into the long shank to flexibly adjust the opening and closing of the clamps.
[0012] Preferably, the steel cable has a wire harness head, a spiral rope body, and a steel cable body. The spiral rope body and the steel cable body are twisted together. The top end of the spiral rope body is interference-fitted with the top end of the steel cable body through the wire harness head. The wire harness head is welded to the bottom of the toothed rod.
[0013] By twisting the rope ends together, connecting the ends to the spiral rope and steel cable, and then cooperating with separate spiral winding and vertical pull rope guidance, the purpose of traction gear linkage gripper opening and closing is achieved. The structure reduces the weight of the long handle and makes it easier to operate. The spiral rope and steel cable have high toughness and rigidity, are break-proof, wear-resistant, and durable, and can continuously and repeatedly perform gripping actions.
[0014] Preferably, grippers are assembled at the upper left and upper right corners of the gear adjuster, a spring wire is inserted between the two grippers, and a spring tube is fixed between the bottom ends of the two grippers.
[0015] Preferably, a palm rest is welded to the left side of the wheel rope adjuster, and a hand grip is inserted into the bottom of the long handle.
[0016] This utility model provides a radioactive source gripping device, which has the following beneficial effects:
[0017] This radioactive source gripping device involves assembling a spring wire and a jaw adapter gear adjuster at the end of a long handle. A rope adjuster and a hand grip are then assembled at the end of the long handle. A steel cable is introduced through the right side of the palm rest, tractioning the guide wheel and winding wheel inside the housing. When radioactive source gripping is required, pulling the trigger handle causes the winding wheel at the end of the pole to wind the steel cable, pulling the gear in the housing groove downwards. The anti-breakage traction helical rope connects to the bottom of the gear, causing the end of the gear to push against the spring tube, allowing the buckle to engage and retract, opening and closing the gripper. The built-in long handle of the steel cable allows for easy assembly, and the lightweight handle allows for continuous, flexible, and controllable gripping operation. Attached Figure Description
[0018] Figure 1This is a three-dimensional structural diagram of a radiation source grasping device according to the present invention;
[0019] Figure 2 This is a cross-sectional structural diagram of a radiation source grasping device according to the present invention;
[0020] Figure 3 This is an enlarged structural schematic diagram of part A of the cross-sectional view of a radioactive source grasping device of this utility model;
[0021] Figure 4 This is an enlarged structural schematic diagram of part B of the cross-sectional view of the radioactive source grasping device of this utility model.
[0022] In the diagram: 1. Spring wire; 2. Gripper; 3. Gear adjuster; 4. Long handle; 5. Rope adjuster; 6. Palm support plate; 7. Hand grip; 8. Steel cable; 31. Shell groove; 32. Gear; 33. Tooth bar; 51. Shell; 52. Guide wheel; 53. Frame rod; 54. Trigger handle; 55. Winding wheel; 81. Cable tie head; 82. Spiral rope body; 83. Steel cable body; 331. Rod end; 332. Spring tube; 333. Buckle. Detailed Implementation
[0023] 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.
[0024] Please see Figures 1-4 This utility model provides a radioactive source grasping device, including a gear adjuster 3, a long handle 4, a wheel rope adjuster 5, and a steel cable 8. The gear adjuster 3 and the wheel rope adjuster 5 are respectively installed at the upper and lower ends of the long handle 4. The steel cable 8 is installed inside the long handle 4. The gear adjuster 3 is coupled to the wheel rope adjuster 5 through the traction of the steel cable 8.
[0025] The gear adjuster 3 is provided with a housing groove 31, a gear 32, and a rack 33. The gear 32 meshes with the rack 33. The rack 33 is vertically installed inside the housing groove 31. There are two gears 32, which are respectively installed on the left and right sides of the housing groove 31. The bottom end of the rack 33 is welded to the top end of the steel cable 8.
[0026] It should be noted that the gear 32 forms a meshing clamping action on the left and right sides of the rack 33, allowing the rack 33 to rise and fall, which can pull other parts of the radiation source clamping device to work, such as: the rack 33 supporting the spring tube 332 to adapt to the opening and closing of the gripper 2, and the steel cable 8 cooperating with the rise and fall of the rack 33 to generate a linkage to control the opening and closing of the gripper 2.
[0027] The toothed rod 33 is provided with a rod end 331, a spring tube 332, and a fastener 333. The top of the rod end 331 is tightly attached to the spring tube 332. The fastener 333 is fastened together with the spring tube 332. The fastener 333 is fixedly installed on the top of the rod end 331 and is installed on the rear side of the spring tube 332, with the fastener end protruding from the top.
[0028] It should be noted that by wrapping the top of the spring tube 332 from the rear with the buckle 333, the rod end 331 and the spring tube 332 have a certain degree of top support and linkage for lateral and longitudinal vibration adjustment.
[0029] The rope adjuster 5 includes a housing 51, a guide wheel 52, a support rod 53, a trigger handle 54, and a winding wheel 55. The winding wheel 55 is fixed on the top of the support rod 53. The guide wheel 52 is installed at the center of the housing 51. The trigger handle 54 is axially connected to the winding wheel 55 via a rotating shaft. The winding wheel 55 is driven by the traction of the steel cable 8 and is coupled to the guide wheel 52.
[0030] It should be noted that, through the pulley traction structure of the steel cable 8, the guide wheel 52 and the winding wheel 55 can easily and flexibly adjust the opening and closing linkage of the clamp 2 within the long handle 4 to pull the steel cable 8.
[0031] The steel cable 8 is provided with a wire harness head 81, a spiral rope body 82, and a steel cable body 83. The spiral rope body 82 and the steel cable body 83 are twisted together. The top end of the spiral rope body 82 is interference-fitted with the top end of the steel cable body 83 through the convergence of the wire harness head 81. The wire harness head 81 is welded to the bottom of the toothed rod 33.
[0032] It should be noted that by twisting the cable ends 81 together, connecting the ends to the spiral rope body 82 and the steel cable body 83, and then cooperating with the separate spiral winding and vertical pull rope guidance operation, the purpose of the traction tooth rod 33 and the linkage gripper 2 opening and closing is achieved. This reduces the weight of the long handle rod 4 and makes it easier to operate the spiral rope body 82 and the steel cable body 83. It has high toughness and rigidity, is anti-breakage, wear-resistant, and durable, and can continuously and repeatedly perform clamping actions.
[0033] The gear adjuster 3 has a gripper 2 assembled at the upper left and upper right corners, a spring wire 1 inserted between the two grippers 2, and a spring tube 332 fixed between the bottom ends of the two grippers 2.
[0034] A palm rest plate 6 is welded to the left side of the wheel rope adjuster 5, and a hand grip 7 is inserted into the bottom of the long handle 4.
[0035] The operator assembles the spring wire 1 and the gripper 2 with the gear adjuster 3 at the head end of the long handle 4, and then assembles the wheel rope adjuster 5 and the hand handle 7 at the tail end of the long handle 4. The steel cable 8 is introduced through the palm support plate 6 on the right side to pull the guide wheel 52 and the winding wheel 55 inside the housing 51. When the radioactive source needs to be gripped, the trigger handle 54 is pulled to make the winding wheel 55 at the end of the support pole 53 wind up the steel cable 8, so that the steel cable 8 pulls the toothed rod 33 of the housing groove 31 to engage the gear 32 and descend. The anti-breakage traction spiral rope 82 of the cable head 81 connects with the bottom of the toothed rod 33 through the steel cable body 83, so that the rod end 331 of the toothed rod 33 pushes the spring tube 332, and the buckle 333 locks the spring tube 332 and retracts and bounces left and right, so that the gripper 2 can open and close. The long handle 4 has a built-in steel cable body 83, which makes the assembly simple and convenient. The long handle 4 is also lightweight, and the operator can easily and flexibly control the continuous gripping operation.
[0036] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.
Claims
1. A radioactive source gripping device, characterized in that: The device includes a gear adjuster (3), a long handle (4), a wheel rope adjuster (5), and a steel cable (8). The gear adjuster (3) and the wheel rope adjuster (5) are respectively installed on the upper and lower sides of the long handle (4). The steel cable (8) is installed inside the long handle (4). The gear adjuster (3) is mechanically connected to the wheel rope adjuster (5) through the traction of the steel cable (8).
2. The radioactive source grasping device according to claim 1, characterized in that: The gear adjuster (3) is provided with a housing groove (31), a gear (32) and a rack (33). The gear (32) meshes with the rack (33). The rack (33) is vertically installed inside the housing groove (31). There are two gears (32) and they are respectively installed on the left and right sides of the housing groove (31). The bottom end of the rack (33) is welded to the top end of the steel cable (8).
3. The radioactive source grasping device according to claim 2, characterized in that: The toothed rod (33) is provided with a rod end (331), a spring tube (332), and a fastener (333). The top of the rod end (331) is tightly attached to the spring tube (332). The fastener (333) is fastened together with the spring tube (332). The fastener (333) is fixedly installed on the top of the rod end (331) and is installed on the back side of the spring tube (332), with the fastener end protruding from the top.
4. The radioactive source grasping device according to claim 1, characterized in that: The wheel rope adjuster (5) is provided with a housing (51), a guide wheel (52), a frame rod (53), a trigger handle (54), and a winding wheel (55). The winding wheel (55) is fixed on the top of the frame rod (53). The guide wheel (52) is installed at the center of the housing (51). The trigger handle (54) is axially connected to the winding wheel (55) through a rotating shaft. The winding wheel (55) is driven by the traction of the steel cable (8) and the guide wheel (52) through a coupling.
5. A radioactive source grasping device according to claim 1 or 2, characterized in that: The steel cable (8) is provided with a wire rope head (81), a spiral rope body (82), and a steel cable body (83). The spiral rope body (82) and the steel cable body (83) are twisted together. The top end of the spiral rope body (82) is connected to the top end of the steel cable body (83) by the wire rope head (81) through an interference fit. The wire rope head (81) is welded to the bottom of the toothed rod (33).
6. A radioactive source grasping device according to claim 1 or 3, characterized in that: The gear adjuster (3) is equipped with grippers (2) at its upper left and right corners respectively. A spring wire (1) is inserted between the two grippers (2), and a spring tube (332) is fixed between the bottom ends of the two grippers (2).
7. A radioactive source grasping device according to claim 1, characterized in that: A palm rest plate (6) is welded to the left side of the wheel rope adjuster (5), and a hand grip (7) is inserted into the bottom of the long handle (4).