Relay protection test line auxiliary device
By combining the drive component and the limiting component, precise clamping and limiting of different types of test leads are achieved, solving the problems of unstable clamping and poor adaptability of existing devices, and improving the stability and safety of the test leads.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI YULIN ENERGY GRP HENGSHAN COAL & ELECTRICITY
- Filing Date
- 2025-05-23
- Publication Date
- 2026-05-12
AI Technical Summary
Existing relay protection test lead devices suffer from insecure clamping, cumbersome operation, and poor adaptability, making it difficult to accommodate test leads of different models and sizes, thus affecting the accuracy and safety of testing.
By combining drive and limit components, the test leads are precisely clamped and limited by a motor-driven gear and rack plate, adapting to different models of test leads.
It improves the clamping stability and operational safety of the test leads, enhances the applicability and flexibility of the device, and prevents the test leads from falling off.
Smart Images

Figure CN224231822U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of auxiliary device technology, specifically to an auxiliary device for relay protection test lines. Background Technology
[0002] Relay protection test lead auxiliary devices are widely used in the testing and maintenance of relay protection equipment. The relay protection system is an important component of the power system to ensure the safe operation of equipment, and the test leads play a key role in verifying whether the system can work normally and ensuring that the protection function is realized. In actual operation, relay protection test leads often need to be accurately and reliably clamped and positioned to ensure that they are not misoperated or fall off. In the existing technology, although there are some devices that can fix and clamp the test leads, most of them have problems such as low accuracy, unstable clamping, and cumbersome operation. Especially when facing test leads of different models and sizes, the existing devices have poor adaptability and cannot be flexibly adjusted, which can easily lead to the test leads falling off or unstable clamping, affecting the accuracy and safety of the test. Summary of the Invention
[0003] The purpose of this invention is to provide an auxiliary device for relay protection test leads to solve the problems mentioned in the background art. To achieve the above objective, this invention adopts the following technical solution: an auxiliary device for relay protection test leads, including a mounting base. Connecting grooves are provided on both the front and rear sides of the upper part of the mounting base. A connecting shaft is slidably connected inside the connecting grooves. A connecting plate is fixedly connected to the upper part of the connecting shaft. A mounting post is fixedly connected to the upper part of the connecting plate. Clamping claws are uniformly fixedly connected to opposite sides of the mounting post. A driving assembly is provided inside the mounting base for driving the connecting shaft. Fixing plates are uniformly fixedly connected to the left and right sides of the mounting base. Mounting rods are fixedly connected to the upper and lower parts of the fixing plates. Springs are sleeved on the front and rear sides of the mounting rods. A limit assembly is provided on the outer side of the mounting rods for limiting the test lead.
[0004] As a further description of the above technical solution:
[0005] The drive assembly includes a motor, which is fixedly connected to the top of the mounting base. A gear is fixedly connected to the output end of the motor, and a rack plate meshes with both the front and rear sides of the gear.
[0006] As a further description of the above technical solution:
[0007] The limiting component includes a fixing plate, which is slidably connected to the outside of the mounting rod. An L-shaped connector is fixedly connected to the side of the mounting rod away from the mounting seat. A limiting frame is fixedly connected to the side of the L-shaped connector away from the mounting seat. A wire outlet hole is opened on both the upper and lower sides of the limiting frame. A winding shaft is evenly fixedly connected to the opposite side of the limiting frame.
[0008] As a further description of the above technical solution:
[0009] The connecting plate is slidably connected to the upper part of the mounting base.
[0010] As a further description of the above technical solution:
[0011] The rack plate is fixedly connected to the connecting shaft, and the rack plate is slidably connected inside the mounting base.
[0012] As a further description of the above technical solution:
[0013] Each of the limiting frames has a handle fixedly connected to the side furthest from the other.
[0014] As a further description of the above technical solution:
[0015] One end of the spring is fixedly connected to the fixed plate, and the other end of the spring is fixedly connected to the sliding plate.
[0016] By adopting the above technical solution, the relay protection test line can be limited.
[0017] Compared with the prior art, the beneficial effects of the present invention are: this relay protection test lead auxiliary device,
[0018] Pulling the handle moves the limiting frame, which in turn moves the L-shaped connector. The L-shaped connector causes the sliding plate to slide outside the mounting rod. The sliding plate compresses the spring, and then pulling the test lead through the bottom outlet hole into the limiting frame, wrapping it around the outside of the winding shaft, and then through the top outlet hole. Releasing the handle releases the spring pressure, causing the sliding plate to reset. The sliding plate then resets the L-shaped connector, which in turn moves the limiting frame to fit against the mounting base. This allows the auxiliary device to limit the relay protection test lead, preventing it from falling off. Finally, moving the test lead to the opposite side of the gripper, the starter motor rotates the gear, which moves the rack plate. The rack plate causes the connecting shaft to slide inside the connecting groove, which in turn moves the connecting plate relative to the mounting column. The mounting column then moves the gripper relative to the test lead, clamping it. This allows the relay protection test lead auxiliary device to clamp different types of test leads, improving its applicability. Attached Figure Description
[0019] Figure 1 This is a perspective view of the present invention;
[0020] Figure 2 for Figure 1 Enlarged view of point A in the image;
[0021] Figure 3This is a cross-sectional view of the upper part of the mounting base of the present invention.
[0022] In the diagram: 1. Mounting base; 2. Winding shaft; 3. Connecting groove; 4. Motor; 5. Gear; 6. Rack plate; 7. Connecting shaft; 8. Connecting plate; 9. Mounting post; 10. Clamp; 11. Fixing plate; 12. Mounting rod; 13. Spring; 14. Handle; 15. Sliding plate; 16. Cable outlet hole; 17. L-shaped connector; 18. Limiting frame. Detailed Implementation
[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0024] Please see Figure 1-3 This invention provides a technical solution: an auxiliary device for relay protection test leads, including a mounting base 1. Fixing plates 11 are uniformly fixedly connected to the left and right sides of the mounting base 1. Mounting rods 12 are fixedly connected to the upper and lower parts of the fixing plates 11. Springs 13 are sleeved on the front and back of the outer sides of the mounting rods 12. A connecting plate 8 is slidably connected to the upper part of the mounting base 1. A limit component is provided on the outer side of the mounting rods 12 for limiting the test lead. The limit component includes the fixing plate 11, which is slidably connected to the outer side of the mounting rods 12. L-shaped connectors 17 are fixedly connected to the side of the mounting rods 12 away from the mounting base 1. Limit frames 18 are fixedly connected to the side of the L-shaped connectors 17 away from the mounting base 1. Outlet holes 16 are provided on the upper and lower sides of the limit frames 18. Winding shafts 2 are uniformly fixedly connected to the opposite side of the limit frames 18. Handles 14 are fixedly connected to the side of the limit frames 18 away from the mounting base 1. One end of the spring 13 is connected to the fixing plate. 11. A fixed connection is made, with the other end of the spring 13 fixedly connected to the sliding plate 15. Pulling the handle 14 moves the limiting frame 18, which in turn moves the L-shaped connector 17. The L-shaped connector 17 moves the sliding plate 15 to slide outside the mounting rod 12. The sliding plate 15 moves and compresses the spring 13. Then, the test wire is pulled through the bottom outlet hole 16 into the limiting frame 18, passes around the outside of the winding shaft 2, and then exits through the top outlet hole 16. Releasing the handle 14 causes the spring 13 to lose pressure, which in turn resets the sliding plate 15. The sliding plate 15 brings the L-shaped connector 17 back to its original position, which in turn moves the limiting frame 18 to fit tightly against the mounting base 1. This allows the auxiliary device to effectively limit the relay protection test wire, ensuring that the test wire will not fall off or loosen accidentally, thereby improving the safety and stability of the operation.
[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0026] Please see Figure 1-3 The present invention provides a technical solution: A connecting groove 3 is provided on both the front and rear sides of the upper part of the mounting base 1. A connecting shaft 7 is slidably connected inside the connecting groove 3. A connecting plate 8 is fixedly connected to the upper part of the connecting shaft 7. A mounting post 9 is fixedly connected to the upper part of the connecting plate 8. Clamping jaws 10 are evenly fixedly connected to opposite sides of the mounting post 9. A driving assembly is provided inside the mounting base 1 for driving the connecting shaft 7. The driving assembly includes a motor 4, which is fixedly connected to the top of the mounting base 1. A gear 5 is fixedly connected to the output end of the motor 4. A rack plate 6 meshes with both the front and rear sides of the gear 5. The rack plate 6 is fixedly connected to the connecting shaft 7 and slidably connected inside the mounting base 1. By moving the test lead to the opposite side of the gripper 10, the starter motor 4 is controlled to drive the gear 5 to rotate. The rotation of the gear 5 drives the rack plate 6 to move. The rack plate 6 drives the connecting shaft 7 to slide inside the connecting groove 3. The connecting shaft 7 drives the connecting plate 8 to move relative to the test lead. The connecting plate 8 then drives the mounting column 9 to move relative to the test lead through relative movement. Finally, the mounting column 9 drives the gripper 10 to move relative to the test lead, thereby completing the clamping operation of the test lead. This process can adjust the clamping force of the gripper 10 according to the size of the test lead, so that the relay protection test lead auxiliary device can adapt to test leads of different models and specifications, enhancing the flexibility and applicability of the equipment.
Claims
1. A relay protection test lead auxiliary device, including a mounting base (1), characterized in that: The mounting base (1) has connecting grooves (3) on both the front and rear sides of the upper part. A connecting shaft (7) is slidably connected inside the connecting groove (3). A connecting plate (8) is fixedly connected to the upper part of the connecting shaft (7). A mounting column (9) is fixedly connected to the upper part of the connecting plate (8). A clamp (10) is evenly fixedly connected to the opposite side of the mounting column (9). A driving component is provided inside the mounting base (1) for driving the connecting shaft (7). A fixing plate (11) is evenly fixedly connected to the left and right sides of the mounting base (1). A mounting rod (12) is fixedly connected to the upper and lower parts inside the fixing plate (11). A spring (13) is sleeved on the front and rear sides of the mounting rod (12). A limit component is provided on the outer side of the mounting rod (12) for limiting the test line.
2. The auxiliary device for relay protection test leads according to claim 1, characterized in that: The drive assembly includes a motor (4), which is fixedly connected to the top of the mounting base (1). A gear (5) is fixedly connected to the output end of the motor (4), and a rack plate (6) meshes with both the front and rear sides of the gear (5).
3. The relay protection test lead auxiliary device according to claim 1, characterized in that: The limiting component includes a fixing plate (11), which is slidably connected to the outside of the mounting rod (12). The mounting rod (12) is fixedly connected to an L-shaped connector (17) on the side away from the mounting base (1). The L-shaped connector (17) is fixedly connected to a limiting frame (18) on the side away from the mounting base (1). The limiting frame (18) has wire outlet holes (16) on both the upper and lower sides. The limiting frame (18) is evenly fixedly connected to a winding shaft (2) on the opposite side.
4. The auxiliary device for relay protection test leads according to claim 1, characterized in that: The connecting plate (8) is slidably connected to the upper part of the mounting base (1).
5. The auxiliary device for relay protection test leads according to claim 2, characterized in that: The rack plate (6) is fixedly connected to the connecting shaft (7), and the rack plate (6) is slidably connected inside the mounting base (1).
6. The relay protection test lead auxiliary device according to claim 3, characterized in that: Each of the limiting frames (18) has a handle (14) fixedly connected to the side furthest from the other.
7. The relay protection test lead auxiliary device according to claim 3, characterized in that: One end of the spring (13) is fixedly connected to the fixed plate (11), and the other end of the spring (13) is fixedly connected to the sliding plate (15).