An auxiliary test tool for a 6kV circuit breaker
By designing auxiliary testing tools and utilizing connecting cylinders and transition mechanisms, the accidental contact and short circuit phenomena of 6kV circuit breakers during the connection process were reduced, thereby improving the service life of the circuit breakers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI HUADIAN SHIJIAZHUANG THERMOELECTRICITY
- Filing Date
- 2025-05-23
- Publication Date
- 2026-06-02
AI Technical Summary
The existing 6kV circuit breakers are prone to connection errors during the connection process due to the large number of pins and small numbering of aviation plugs. This can lead to accidental contact of the test leads or alligator clips, causing short circuits and affecting the service life.
An auxiliary testing tool was designed, including a testing tool body, a connecting cylinder, a connecting plate, and a transition mechanism. Through the cooperation of the support mechanism and the transition mechanism, friction and accidental contact between pins are reduced, ensuring accurate connection.
It effectively prevents damage to 6kV circuit breakers and extends their service life.
Smart Images

Figure CN224317749U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circuit breaker auxiliary testing technology, specifically to an auxiliary testing tool for a 6kV circuit breaker. Background Technology
[0002] A 6kV circuit breaker is a switching device that can cut off or close the current in an electrical circuit. 6kV circuit breakers are classified into high-voltage circuit breakers and low-voltage circuit breakers according to their application range.
[0003] During the maintenance, testing, and troubleshooting of circuit breakers in large power plants, it is necessary to connect test leads or alligator clips to the corresponding pins of the circuit breaker's aviation connector. However, due to the large number of pins and small pin numbers on the aviation connector, incorrect connection is easy to occur during the connection process. Test leads or alligator clips may accidentally touch each other, causing a short circuit, which can easily damage the 6kV circuit breaker and affect its service life. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides an auxiliary testing tool for 6kV circuit breakers. This tool solves the problem mentioned in the background art that existing technologies, due to the large number of pins and small pin numbers of aviation plugs, are prone to connection errors during the connection process. The test leads or alligator clips are easily accidentally touched, leading to short circuits, which can easily damage the 6kV circuit breaker and affect its service life.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary testing tool for a 6kV circuit breaker, comprising a testing tool body, and further comprising: a connecting cylinder, a connecting plate, and a transition mechanism. Two connecting cylinders are provided, both of which are connected to the testing tool body. Two connecting plates are provided, both of which are set inside the connecting cylinders through a support mechanism for connecting pins. Each of the two connecting plates is provided with a transition mechanism to reduce friction between the plate and the pins.
[0008] To support the connecting plate and allow it to spring back, the support mechanism includes a through groove and support springs. The through groove is formed on the inner wall of the connecting cylinder, and multiple support springs are fixedly connected in the through groove. The connecting plate is fixedly connected to the other end of the multiple support springs.
[0009] To reduce friction between the connecting plate and the pins, the transition mechanism includes: a transition wheel and an elastic plate. Multiple transition wheels are provided, and all of the multiple transition wheels are rotatably connected to the bottom of the connecting plate. Multiple elastic plates are provided, and all of the multiple elastic plates are fixedly connected to the inner wall of the connecting cylinder. The other side of the connecting plate is in contact with the multiple elastic plates.
[0010] To increase the stability of the connecting plate sliding within the through groove, a sliding rod is fixedly connected to the connecting plate. The sliding rod is slidably connected within the through groove, and multiple support springs are fixedly connected to one side of the sliding rod.
[0011] To increase the stability of the transition wheel during rotation, the connecting plate is provided with multiple rotation slots, and a transition wheel is rotatably connected in each of the rotation slots.
[0012] To increase the support of the connecting plate, all of the elastic plates are arranged in an arc shape.
[0013] (III) Beneficial Effects
[0014] Compared with the prior art, this utility model provides an auxiliary testing tool for a 6kV circuit breaker, which has the following beneficial effects:
[0015] In this invention, the cooperation between the test tool body, connecting cylinder, connecting plate, support mechanism and transition mechanism enables the connecting cylinder to be inserted vertically into the pin, reducing accidental contact with other pins, reducing the occurrence of short circuits, effectively preventing damage to the 6kV circuit breaker, and improving the service life of the 6kV circuit breaker. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the entire application;
[0017] Figure 2 This is a three-dimensional structural diagram showing a cross-section of the present application;
[0018] Figure 3 This is a three-dimensional structural diagram of the supporting and transitional mechanisms in this application;
[0019] Figure 4 This is a three-dimensional structural diagram of the transitional mechanism in this application.
[0020] In the figure: 1. Test tool body; 2. Connecting cylinder; 3. Connecting plate; 4. Through groove; 5. Support spring; 6. Transition wheel; 7. Elastic sheet; 8. Slide rod. Detailed Implementation
[0021] 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 scope of protection of the present utility model.
[0022] Please see Figures 1 to 4An auxiliary testing tool for a 6kV circuit breaker includes a test tool body 1, and further includes: a connecting cylinder 2, a connecting plate 3, and a transition mechanism. Two connecting cylinders 2 are provided, both connected to the test tool body 1. Two connecting plates 3 are provided, both housed within the connecting cylinders 2 via a support mechanism, for connecting pins. Each connecting plate 3 is equipped with a transition mechanism to reduce friction with the pins. Through the cooperation of the test tool body 1, connecting cylinders 2, connecting plates 3, support mechanism, and transition mechanism, the connecting cylinders 2 can be vertically inserted into the pins, reducing accidental contact with other pins, reducing the occurrence of short circuits, effectively preventing damage to the 6kV circuit breaker, and improving the service life of the 6kV circuit breaker.
[0023] The support mechanism includes a through groove 4 and support springs 5. A slide rod 8 is fixedly connected to the connecting plate 3 and slides within the through groove 4. Multiple support springs 5 are fixedly connected to one side of the slide rod 8. The through groove 4 is opened on the inner wall of the connecting cylinder 2. Multiple support springs 5 are fixedly connected within the through groove 4. The connecting plate 3 is fixedly connected to the other end of the multiple support springs 5. The support springs 5 support the slide rod 8 and the connecting plate 3, thereby clamping the pin between the two connecting plates 3 and accurately connecting the pin.
[0024] The transition mechanism includes: a transition wheel 6 and elastic plates 7. The multiple elastic plates 7 are all arranged in an arc shape. The connecting plate 3 has multiple rotating grooves, and a transition wheel 6 is rotatably connected in each rotating groove. There are multiple transition wheels 6, and the multiple transition wheels 6 are rotatably connected to the bottom of the connecting plate 3. There are multiple elastic plates 7, and the multiple elastic plates 7 are fixedly connected to the inner wall of the connecting cylinder 2. The other side of the connecting plate 3 is in contact with the multiple elastic plates 7. When the needle is inserted into the connecting cylinder 2, the transition wheel 6 rolls on the needle, and the elastic plates 7 provide support, thereby reducing the friction when the needle is inserted between the two connecting plates 3.
[0025] Working principle: When connecting the pins, the operator holds the connecting cylinder 2 vertically and inserts it into the pin. During the insertion process, the transition wheel 6 rolls on the pin, and the elastic plate 7 provides support, thereby reducing the friction when the pin is inserted between the two connecting plates 3. The support spring 5 supports the sliding rod 8 and the connecting plate 3, thereby clamping the pin between the two connecting plates 3 and accurately connecting the pin.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An auxiliary testing tool for a 6kV circuit breaker, comprising a testing tool body, characterized in that, Also includes: Connecting cylinder (2), two connecting cylinders (2) are provided, and both connecting cylinders (2) are connected to the test tool body (1); Connecting plate (3), two connecting plates (3) are provided, and both connecting plates (3) are set in the connecting cylinder (2) through a support mechanism for connecting the pins; Transition mechanism: Both connecting plates (3) are provided with transition mechanism to reduce friction with the pins.
2. The auxiliary testing tool for a 6kV circuit breaker according to claim 1, characterized in that, The supporting structure includes: A through groove (4) is formed on the inner wall of the connecting cylinder (2); Support springs (5), multiple support springs (5) are fixedly connected in the through groove (4), and the connecting plate (3) is fixedly connected to the other end of the multiple support springs (5).
3. The auxiliary testing tool for a 6kV circuit breaker according to claim 2, characterized in that, The transition mechanism includes: Transition wheel (6), multiple transition wheels (6) are provided, and multiple transition wheels (6) are rotatably connected to the bottom of the connecting plate (3); Elastic sheet (7), multiple elastic sheets (7) are provided, and multiple elastic sheets (7) are fixedly connected to the inner wall of the connecting cylinder (2). The other side of the connecting plate (3) is in contact with multiple elastic sheets (7).
4. The auxiliary testing tool for a 6kV circuit breaker according to claim 3, characterized in that, A slide rod (8) is fixedly connected to the connecting plate (3). The slide rod (8) is slidably connected in the through groove (4). Multiple support springs (5) are fixedly connected to one side of the slide rod (8).
5. The auxiliary testing tool for a 6kV circuit breaker according to claim 4, characterized in that, The connecting plate (3) has multiple rotating slots, and each rotating slot is rotatably connected to the transition wheel (6).
6. The auxiliary testing tool for a 6kV circuit breaker according to claim 5, characterized in that, All of the elastic sheets (7) are arranged in an arc shape.