Multifunctional retracting and releasing device for switching operation safety tools and instruments
By designing a multifunctional winding and unwinding device that includes a U-shaped push rod, a winding reel, and a vertical pole, the problems of laborious manual winding and inconvenience in switching operations are solved, achieving mechanized winding and unwinding and portability.
Patent Information
- Application Number
- CN202520154854.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-23
AI Technical Summary
Existing switching operation auxiliary tools require manual winding of the safety grounding wire, which is time-consuming and labor-intensive, and is inconvenient to disassemble and fold, making them difficult to carry.
A multifunctional winding and unwinding device was designed, comprising a U-shaped push rod, a winding reel, a bushing, a loading platform, and a vertical pole. This device replaces manual winding and unwinding of the grounding wire with a mechanical structure and is detachable and foldable for easy carrying.
The mechanized deployment and retraction of the grounding wire reduces the workload of operators, and the device is detachable and foldable, making it easy to load and carry, saving space.
Smart Images

Figure CN223836819U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of power equipment, specifically relating to a multi-functional retractable device for safety tools during switching operations. Background Technology
[0002] In power systems, switching operations are a crucial step in ensuring the safe and reliable operation of the power grid. Personnel performing switching operations must use various safety tools and equipment, such as insulating rods, insulating gloves, safety grounding wires, and voltage detectors.
[0003] However, in actual operation, safety tools such as grounding wires and insulating rods are heavy and long in order to meet safety standards. This makes it difficult to pick up and put away the tools, and causes many inconveniences for operators.
[0004] For example, Chinese patent CN203974860U discloses a substation switching operation auxiliary tool, including a vehicle body, handrails, wheel brackets and wheels. Support legs are provided on both sides of the front end of the vehicle body, and a horizontal baffle is provided at the rear end of the vehicle body. Multiple layered partitions are provided on the upper part of the vehicle body from front to back. The layered partitions are fixedly installed on the vehicle body by the side brackets. The layered partitions divide the space enclosed by the upper surface of the vehicle body, the horizontal baffle and the side brackets into at least two layers.
[0005] Although this auxiliary tool can retract and extend safety tools, it still requires manual winding during the retraction and extension of the safety grounding wire. The winding process is time-consuming and labor-intensive. Furthermore, the auxiliary tool cannot be disassembled or folded, making it inconvenient to load and carry on a vehicle.
[0006] To address the aforementioned issues, this utility model patent proposes a multi-functional retraction and deployment device for safety tools used in switching operations. Utility Model Content
[0007] In view of the fact that although the auxiliary tool can retract and extend safety tools, it still requires manual winding during the retraction and extension of the safety grounding wire, which is time-consuming and labor-intensive, and the auxiliary tool cannot be disassembled or folded, making it inconvenient to load and carry on vehicles, this utility model provides a multi-functional retraction and extension device for safety tools in switching operations.
[0008] The solution adopted by this utility model to solve its technical problem is: a multi-functional winding and unwinding device for safety tools in switching operations, including a U-shaped push rod, a winding reel, a bushing, a loading platform and two parallel uprights, wherein the two bottom ends of the U-shaped push rod are respectively fixedly installed on the top ends of the two uprights;
[0009] Multiple connecting rods are fixedly installed between the two uprights, and N coarse storage tubes and M fine storage tubes are welded and fixed to the sides of the connecting rods.
[0010] A wheel seat is welded and fixed to the lower right side of the upright, and a wheel is installed on the wheel seat. The loading platform is detachably installed on the lower left side of the upright.
[0011] The bushing is fixedly installed between two adjacent connecting rods. A sleeve is welded and fixed at the center of the winding reel. The sleeve corresponds to the bushing. The same connecting shaft is provided inside the bushing and the sleeve. The left end of the connecting shaft is connected to the left end of the sleeve through a connector. Its right end passes through the bushing and is fixedly installed with a handle.
[0012] Preferably, the loading platform consists of a U-shaped rod and multiple support rods welded and fixed inside the U-shaped rod.
[0013] Preferably, L-shaped connectors are welded and fixed to the front and rear sides of the loading platform, and the L-shaped connectors and the uprights are connected by bolts.
[0014] Preferably, a handle is fixedly installed on the left side of the loading platform.
[0015] Preferably, the bottom of the loading platform is equipped with multiple support blocks.
[0016] Preferably, the left end of the sleeve has a through hole one, and the left end of the connecting shaft has a through hole two, with the same bolt installed in both through holes one and through holes two.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. This utility model uses a rotating handle to drive the rotation of the connecting shaft, sleeve and winding reel. Then, during the winding and unwinding of the safety grounding wire in the switching operation, the rotating mechanical structure replaces manual labor to complete the winding and unwinding of the grounding wire, reducing the workload of workers. In addition, the winding reel can be disassembled, which makes it easy to load separately and carry. On the other hand, when the winding reel is not needed, it can be disassembled and stored, thereby saving workspace.
[0019] 2. By loosening bolt two, the L-shaped connector is no longer secured by bolt two, and the platform can be flipped upwards to the left side of the upright, and the platform can be folded to facilitate loading and carrying of the device onto a vehicle. Attached Figure Description
[0020] Figure 1 This is a front view structural diagram of the present invention;
[0021] Figure 2 This is a frontal cross-sectional view of the present invention.
[0022] Figure 3This is a schematic diagram of the left-side structure of the winding reel of this utility model;
[0023] Figure 4 This is a top view of the cargo platform structure of this utility model.
[0024] In the diagram: 1 upright pole, 2 U-shaped push rod, 31 bushing, 32 connecting shaft, 33 bolt one, 34 handle, 41 winding reel, 42 sleeve, 51 loading platform, 52 support block, 53 handle, 54 bolt two, 55 L-shaped connector, 61 wheel seat, 62 wheel, 7 coarse storage tube, 8 fine storage tube, 9 connecting rod. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0026] Please see Figure 1-4 This utility model provides a technical solution for a multi-functional retraction and deployment device for safety tools during switching operations:
[0027] Example 1:
[0028] according to Figure 1-4 As shown, it includes a U-shaped push rod 2, a winding reel 41, a bushing 31, a loading platform 51, and two parallel uprights 1. The two bottom ends of the U-shaped push rod 2 are fixedly installed on the top ends of the two uprights 1, and a soft sleeve is provided on the top end of the U-shaped push rod 2.
[0029] Multiple connecting rods 9 are fixedly installed between the two uprights 1 to connect and fix the two uprights 1. N coarse storage cylinders 7 and M fine storage cylinders 8 are welded and fixed to the side of the connecting rods 9. The coarse storage cylinders 7 and fine storage cylinders 8 can classify and store safety tools and equipment, making them convenient to carry at one time and avoiding multiple handling of safety tools and equipment.
[0030] A wheel seat 61 is welded and fixed to the lower right side of the upright 1. A wheel 62 is installed on the wheel seat 61. The wheel 62 is a triangular wheel. The use of triangular wheels allows for transportation in complex terrain (such as steps) during the transportation of safety tools and equipment, thereby reducing the workload of workers.
[0031] The loading platform 51 consists of a U-shaped rod and multiple support rods welded and fixed inside the U-shaped rod. The loading platform 51 is located on the lower left side of the upright 1. L-shaped connectors 55 are welded and fixed on the front and rear sides of the loading platform 51. The L-shaped connectors 55 and the upright 1 are connected by bolts 54. When not in use, the loading platform can be removed by removing bolts 54. When carrying, the loading platform can be flipped upwards to the left side of the upright 1 by loosening bolts 54 so that bolts 54 are no longer tight to the L-shaped connectors 55, and the loading platform can be folded to facilitate loading and carrying of the device.
[0032] The bushing 31 is fixedly installed between two adjacent connecting rods 9. A sleeve 42 is welded and fixed at the center of the take-up reel 41. The sleeve 42 corresponds to the bushing 31. The same connecting shaft 32 is provided inside the bushing 31 and the sleeve 42. The connecting shaft 32 can be removed from the bushing 31 and the sleeve 42. A through hole 1 is opened at the left end of the sleeve 42, and a through hole 2 is opened at the left end of the connecting shaft 32. The connecting shaft 32 is connected to the sleeve 42 through a connecting piece, which is a bolt 33 set in the through hole 1 and the through hole 2, so that the connecting shaft 32 drives the sleeve 42 and the take-up reel 41 to rotate synchronously.
[0033] The right end of the connecting shaft 32 passes through the bushing 31 and is fixedly installed with a handle 34. By rotating the handle 34, the connecting shaft 32, the sleeve 42 and the winding reel 41 are rotated. Then, during the switching operation to reel in and release the safety grounding wire, the rotating mechanical structure replaces manual labor to complete the reeling and releasing of the grounding wire, reducing the workload of workers. In addition, the winding reel 41 can be disassembled, which makes it easy to load separately and carry. On the other hand, when the winding reel 41 is not needed, it can be disassembled and stored, thereby saving workspace.
[0034] In practical use, the multi-functional loading and unloading device for safety tools during switching operations of this utility model first flips and unfolds the loading platform 51 downwards, and uses bolt 2 54 to connect the L-shaped connector 55 and the upright 1 to ensure the stability of the loading platform during use. Then, the connecting shaft 32 is inserted into the bushing 31, the winding reel 41 is lifted, and the sleeve 42 is aligned with the connecting shaft 32. The winding reel 41 is then installed on the connecting shaft 32. Then, bolt 1 33 is used to connect the sleeve 42 and the connecting shaft 32. After that, the safety tools are sorted and inserted into the coarse storage cylinder 7 and the fine storage cylinder 8. Finally, the U-shaped push rod 2 is used to push the device to the working area.
[0035] Example 2:
[0036] Based on Example 1, such as Figure 1 As shown, a handle 53 is fixedly installed on the left side of the loading platform 51.
[0037] Multiple support blocks 52 are installed at the bottom of the loading platform 51.
Claims
1. A multi-functional retractable device for safety tools during switching operations, comprising a U-shaped push rod, a winding reel, a bushing, a loading platform, and two parallel uprights, characterized in that: The two bottom ends of the U-shaped push rod are respectively fixedly installed on the top of the two uprights; Multiple connecting rods are fixedly installed between the two uprights, and N coarse storage tubes and M fine storage tubes are welded and fixed to the sides of the connecting rods. A wheel seat is welded and fixed to the lower right side of the upright, and a wheel is installed on the wheel seat. The loading platform is detachably installed on the lower left side of the upright. The bushing is fixedly installed between two adjacent connecting rods. A sleeve is welded and fixed at the center of the winding reel. The sleeve corresponds to the bushing. The same connecting shaft is provided inside the bushing and the sleeve. The left end of the connecting shaft is connected to the left end of the sleeve through a connector. Its right end passes through the bushing and is fixedly installed with a handle.
2. The multi-functional retractable device for switching operation safety tools according to claim 1, characterized in that: The loading platform consists of a U-shaped rod and multiple support rods welded and fixed inside the U-shaped rod.
3. The multi-functional retractable device for switching operation safety tools according to claim 1, characterized in that: The front and rear sides of the loading platform are respectively welded and fixed with L-shaped connectors, and the L-shaped connectors and the uprights are connected by bolts.
4. The multi-functional retractable device for switching operation safety tools according to claim 1, characterized in that: A handle is fixedly installed on the left side of the loading platform.
5. The multi-functional retractable device for safety tools during switching operations according to claim 1, characterized in that: The bottom of the loading platform is equipped with multiple support blocks.
6. The multi-functional retractable device for switching operation safety tools according to claim 1, characterized in that: The sleeve has a through hole one on its left end, and the connecting shaft has a through hole two on its left end. The same bolt is installed in both through holes one and through holes two.
Citation Information
Patent Citations
Multi-functional operation facilitating dolly
CN203974860U