Mechanical counter device for circuit breaker

Abstract

The utility model discloses a mechanical counter device for a circuit breaker, which belongs to the technical field of high-voltage circuit breakers and comprises a connecting rod, a sector plate, a mechanical counter and a connecting plate. One end of the connecting rod is connected with an output rod of the circuit breaker; the other end of the connecting rod is connected with the fan-shaped plate; the mechanical counter is mounted on the connecting plate; the output rod drives the connecting rod to move so that the sector plate can drive the mechanical counter to count. Different from the mode that an electronic counter depends on electric power supply and a secondary circuit, the device adopts a full-mechanical structure and does not depend on an external power supply, and the influence of electrical faults on counting precision is avoided. In the operation process of the mechanical counter device, the action of the circuit breaker directly drives the counter to count through mechanical connection, so that the counting accuracy and reliability are ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to high voltage circuit breaker technical field especially a mechanical counter device for circuit breaker. BACKGROUND

[0002] High voltage circuit breaker is one of the most important switching devices in power system, and is widely used in substation and power network. Its main role in power system is to cut off and close the no-load current and load current in the circuit, to ensure that the system is cut off by protection device in time when fault occurs, so as to ensure the safe operation of power system. In addition, the circuit breaker can also perform automatic reclosing task to improve the reliability of power supply. However, with the frequent use of high voltage circuit breaker, its performance monitoring and reliability evaluation become particularly important, especially the record of circuit breaker opening and closing operation times.

[0003] At present, the action times of circuit breaker are usually recorded by electronic counter and secondary circuit composed of auxiliary contact. The secondary circuit is connected with the control circuit of circuit breaker through auxiliary contact, thereby indirectly recording the opening and closing times of circuit breaker. This electronic counting method is widely used in application, but also has some obvious defects. First of all, the secondary circuit composed of electronic counter and auxiliary contact often has long-term live problem, which is easy to cause excessive wear and even burnout of electrical components. Secondly, due to the complexity of electrical part of secondary circuit, auxiliary contact inaction, control power loss and other faults are easy to occur, which will directly affect the accuracy of counter and the reliability of system. In addition, the precision and stability of electronic counter are easily affected by environmental factors such as voltage fluctuation and temperature change, which further reduces the credibility of counting result. CONTENT OF THE UTILITY MODEL

[0004] To solve the above problems, the utility model provides a mechanical counter device for circuit breaker, which realizes the accurate record of circuit breaker action times through mechanical transmission mode. The core principle of the device is to convert the movement of circuit breaker into mechanical counting through the cooperation of connecting rod, sector plate and mechanical counter. Unlike the way of relying on power supply and secondary circuit of electronic counter, the device adopts all-mechanical structure, which does not depend on external power supply, avoiding the influence of electrical fault on counting accuracy. In the running process of mechanical counter device, the action of circuit breaker directly drives the counter to count through mechanical connection, ensuring the accuracy and reliability of counting.

[0005] The utility model discloses a technical scheme that solves its technical problem is: A mechanical counter device for circuit breaker, including connecting rod, sector plate, mechanical counter and connecting plate, one end of connecting rod is connected with the output stem of circuit breaker, the other end of connecting rod is connected with sector plate, mechanical counter is installed on connecting plate, mechanical counter is connected with spring, and the spring is connected with sector plate through fastener, and the output stem drives connecting rod to move to make sector plate drive mechanical counter count.

[0006] Preferably, it further comprises a base, and the circuit breaker is installed on the base through the fixing seat.

[0007] Preferably, the connecting plate is installed on the base through the fastener.

[0008] Preferably, the connecting rod and the sector plate are connected through the pin shaft.

[0009] Preferably, the output stem is connected with the connecting rod through the fastener.

[0010] Preferably, the connecting plate and the mechanical counter are connected through the fastener.

[0011] From the above technical scheme, the utility model has the advantages that: the utility model discloses a mechanical counter device for circuit breaker, through the cooperation of connecting rod, sector plate, mechanical counter and connecting plate, high-precision counting function is realized. One end of the connecting rod is connected with the output stem of the circuit breaker, and the other end is connected with the sector plate. The output stem drives the connecting rod to move, thereby driving the sector plate to rotate, and further driving the mechanical counter to count. The device has a simple structure, adopts a mechanical transmission mode, avoids the use of complex electronic circuits, and improves the reliability of the system. Through mechanical connection, the device does not rely on external power supply, avoids the influence of circuit failure, has higher stability and long-term reliability. At the same time, the mechanical structure of the device is easy to maintain, can be conveniently installed, disassembled and repaired, and reduces the maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme of the utility model, the drawings needed to be used in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0013] Figure 1 It is the whole structure schematic of the utility model Figure One .

[0014] Figure 2 It is the whole structure schematic of the utility model Figure Two .

[0015] Figure 3 is the connecting rod structure schematic diagram of the utility model.

[0016] Figure 4 is the fan-shaped plate structure schematic diagram of the utility model.

[0017] Figure 5 is the mechanical counter schematic diagram of the utility model Figure One .

[0018] Figure 6 is the mechanical counter schematic diagram of the utility model Figure Two .

[0019] Figure 7 is the connecting plate schematic diagram of the utility model Figure One .

[0020] Figure 8 is the connecting plate schematic diagram of the utility model Figure Two .

[0021] In the drawings, the component list represented by each mark is as follows: 1, connecting rod;2, fan-shaped plate;3, mechanical counter;4, connecting plate;5, output rod;6, base;7, fixed seat;8, spring. Specific embodiments

[0022] In order to make the purpose, features, advantages of the utility model more obvious and easy to understand, the technical scheme in the utility model will be described clearly and completely by combining the drawings in the specific embodiment below, obviously, the following described embodiment is only a part of the embodiment of the utility model, rather than all the embodiments. Based on the embodiment in the patent, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of the patent protection.

[0023] Reference Figures 1-8The utility model discloses a mechanical counter device for circuit breaker, including connecting rod 1, sector plate 2, mechanical counter 3 and connecting plate 4, one end of connecting rod 1 is connected with the output stem 5 of circuit breaker, the output stem 5 is connected with connecting rod through fastener, the other end of connecting rod 1 is connected with sector plate 2, mechanical counter 3 is installed on connecting plate 4, the output stem 5 drives connecting rod 1 to move to make sector plate 2 drive mechanical counter 3 count, the cooperation of connecting rod 1, sector plate 2, mechanical counter 3 and connecting plate 4 has realized the high-precision counting function, one end of connecting rod 1 is connected with the output stem 5 of circuit breaker, and the other end is connected with sector plate 2, and the output stem 5 drives connecting rod 1 to move, to drive sector plate 2 to rotate, and then drive mechanical counter 3 to count, the device structure is simple, adopts mechanical transmission mode, avoids the use of complex electronic circuit, improves the reliability of system, through mechanical connection, the device does not rely on external power supply, avoids the influence of circuit failure, has higher stability and long-time reliability, simultaneously, the mechanical structure of device is easy to maintain, can conveniently install, disassemble and repair, reduces maintenance cost.

[0024] Still include base 6, and circuit breaker is installed on base 6 through fixed seat 7, connecting plate 4 is installed on base 6 through fastener, this design provides stable support and fixed platform, ensures the stability and reliability of circuit breaker and its accessory device during use, through fixed seat 7, circuit breaker and connecting plate can be firmly installed on base 6, avoid the displacement of equipment due to vibration or external force interference, to further improve the accuracy and stability of counting device, the overall structure is more stable, enhances the durability of equipment, ensures the safety and reliability in long-term operation.

[0025] Connecting rod 1 and sector plate 2 are connected through pin shaft, and pin shaft connection makes the relative movement between connecting rod 1 and sector plate 2 more flexible, when circuit breaker acts, connecting rod 1 will drive sector plate 2 to rotate, and the connection mode of pin shaft avoids the rigid transmission caused by fixed connection, to adapt to the movement demand of different angles and ranges, enhances the applicability of device.

[0026] The mechanical counter 3 is connected with a spring 8, and the spring 8 is connected with the mechanical counter 3 and the sector plate 2 through connecting pieces respectively, wherein the connecting pieces can be in the form of connecting rods or connecting plates to realize the connection of the two; the spring 8 is connected with the sector plate 2 through a fastener; the main function of the spring 8 is to provide a restoring force for the sector plate 2. When the circuit breaker operates, the connecting rod 1 drives the sector plate 2 to rotate and resets the sector plate 2 through the spring 8. The restoring force of the spring ensures that the sector plate 2 can return to the initial position after counting, and prepares for the next operation. This restoring force helps the sector plate to return quickly and accurately after each counting, thereby maintaining the normal operation of the counter; at the same time, the elastic force provided by the spring 8 can also be used to adjust the rotating resistance of the sector plate 2. When the connecting rod 1 drives the sector plate 2 to rotate, the spring can control the rotating speed of the sector plate through appropriate resistance, so as to prevent the sector plate from rotating too fast or too slow, thereby ensuring the accuracy of the counting operation. The connecting plate 4 is connected with the mechanical counter 3 through a fastener. In the above embodiment, the fastener is a fixed bolt, and the connecting plate 4, the base 6, the connecting plate 4 and the mechanical counter 3, and the spring 8 and the sector plate 2 are connected through the fixed bolt. Through the form of the fixed bolt, the connecting plate 4 can be firmly installed on the base 6, so as to prevent the connecting plate from being displaced due to vibration or other external force interference, thereby ensuring the stability of the entire mechanical counter device; the fixed bolt connects the connecting plate 4 and the mechanical counter 3, so as to ensure that the position of the counter does not change during use, so that it can accurately record the number of operations of the circuit breaker; when the spring 8 is connected with the sector plate 2, the spring 8 can play its elastic role when the sector plate 2 rotates, thereby maintaining the accuracy of the counter; at the same time, the use of the fixed bolt as the connecting mode can simplify the installation process, and workers can complete the assembly through simple bolt operation. At the same time, if some parts need to be repaired or replaced, the fixed bolt can also be easily disassembled, thereby reducing the difficulty of maintenance.

[0027] The terms "upper", "lower", "outer", "inner" and the like in the description and claims of the utility model and the above drawings, if any, are used to distinguish the relative position, and do not have to be given the nature. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0028] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mechanical counter device for a circuit breaker, characterized by It includes connecting rod (1), sector plate (2), mechanical counter (3) and connecting plate (4), one end of connecting rod (1) is connected with output rod (5) of circuit breaker, the other end of connecting rod (1) is connected with sector plate (2), mechanical counter (3) is installed on connecting plate (4), spring (8) is connected with mechanical counter (3), spring (8) is connected with sector plate (2) through fastener, output rod (5) drives connecting rod (1) to move to make sector plate (2) drive mechanical counter (3) to count.

2. The mechanical counter device for circuit breakers according to claim 1, characterized in that, It also includes base (6), circuit breaker is installed on base (6) through fixing seat (7).

3. The mechanical counter device for circuit breakers according to claim 2, characterized in that, Connecting plate (4) is installed on base (6) through fastener.

4. The mechanical counter device for circuit breakers of claim 1, wherein, Output rod (5) is connected with connecting rod (1) through fastener.

5. The mechanical counter device for circuit breakers of claim 1, wherein, Connecting rod (1) is connected with sector plate (2) through pin shaft.

6. The mechanical counter device for circuit breakers of claim 1, wherein, Connecting plate (4) is connected with mechanical counter (3) through fastener.

Images