Improved circuit breaker spring operating mechanism

Abstract

The utility model discloses an improved breaker spring operation mechanism, comprising a left side plate and a right side plate, an installation space is installed between the left side plate and the right side plate, a spring operation assembly is installed in the installation space, and the spring operation assembly comprises a microswitch assembly. The microswitch assembly is characterized in that the microswitch assembly comprises a microswitch and a microswitch installation seat assembly, the microswitch installation seat assembly comprises a side installation piece fixedly installed on the left side plate, a driving support is arranged on the side installation piece, the driving support is provided with an inner fixing piece, a shaft rod and an outer fixing piece, and the inner fixing piece, the shaft rod and the outer fixing piece are installed on the side installation piece. The two ends of the shaft rod are installed on the inner fixing piece and the outer fixing piece respectively, a driving plate capable of being close to the microswitch under the action of external force is installed on the shaft rod, and the microswitch is installed between the inner fixing piece and the outer fixing piece. According to the scheme, the installation is convenient, the circuit is convenient to replace, and the contact is more reliable by changing the installation of the microswitch structure.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of circuit breaker technology, especially relates to an improved circuit breaker spring operating mechanism. BACKGROUND

[0002] The circuit breaker spring operating mechanism is a mechanism for closing control by using the energy stored by spring stretching and contraction.

[0003] The circuit breaker spring operating mechanism is one kind of operating mechanism, according to the different energy forms, the operating mechanism can be divided into manual operating mechanism, electromagnetic operating mechanism, spring operating mechanism and motor operating mechanism.

[0004] The spring operating mechanism uses the energy stored by spring to operate closing and opening. The energy storage process usually relies on the motor, and the opening operation is controlled by closing and opening coils.

[0005] After the energy storage is completed, the mechanism is kept in the energy storage state. If preparing to close, the closing coil is energized, the electromagnet acts, the energy storage keeping state is released, the closing spring releases energy quickly, and the closing action is completed. When opening, the opening coil is energized to make the electromagnet act, and the balance state of the connecting rod mechanism is released, and under the action of the circuit breaker load, the opening operation is completed.

[0006] The rated operation sequence of the circuit breaker spring operating mechanism usually includes that the circuit breaker is in the opening position, and the closing and opening springs are not stored energy; the motor is started or the closing spring is manually stored energy; the closing button is pressed to make the closing spring release energy, drive the circuit breaker to close and store energy for the opening spring through the mechanical transmission device; after the circuit breaker is closed, the motor is automatically started to store energy for the closing spring; the opening button is pressed to make the opening spring release energy to drive the circuit breaker to open. Thereafter, the operating mechanism circulates the action in the sequence.

[0007] A kind of spring operating mechanism of 10KV circuit breaker in Chinese application, application number 202321019558, discloses a kind of 10KV circuit breaker spring operating mechanism, it is characterized in that, including left side plate, right side plate, energy storage spring, energy storage motor, closing electromagnet, opening electromagnet, opening buckle plate, closing and opening button shaft, cam, pressing plate, transmission gear component, energy storage large gear, energy storage wheel, energy storage shaft, energy storage crank, energy storage signboard, opening half shaft, closing buckle plate, opening push plate, output shaft, wherein left side plate, right side plate are oppositely arranged, energy storage motor is installed on right side plate, the output gear of energy storage motor extends into right side plate, the output gear of energy storage motor is meshed with the tooth surface of energy storage large gear, energy storage shaft is installed on left side plate and right side plate by bearing, the both ends of energy storage shaft extend left side plate and right side plate, energy storage wheel is installed on energy storage shaft, and located the left side of energy storage large gear, energy storage large gear is installed on energy storage shaft by large gear shaft sleeve, gear catch is installed in energy storage large gear, and the clutch pin on gear catch extends out of energy storage large gear.

[0008] The application patent solves some current problems, but the design is still unreasonable in details, such as unreasonable component installation. Practical new type content

[0009] The utility model discloses an improved circuit breaker spring operating mechanism, solve above -mentioned technical problem.

[0010] To solve the above technical problem, the utility model is realized through the following technical schemes:

[0011] An improved circuit breaker spring operating mechanism, including left side plate and right side plate, install the installation space between left side plate and right side plate, install spring operating assembly in the installation space, spring operating assembly includes micro -switch subassembly, its characterized in that: the micro -switch subassembly includes micro -switch and micro -switch mounting seat subassembly, micro -switch mounting seat subassembly includes with the side mounting piece of fixed installation of left side plate, drive support on the side mounting piece, the drive support has the inner fixed sheet of installing on the side mounting piece, shaft and outer fixed sheet, the shaft both ends are installed on inner fixed sheet and outer fixed sheet, the spring piece of micro -switch installation is at the shaft below and under the action of external force can be to the micro -switch contact close, micro -switch is installed between inner fixed sheet and outer fixed sheet.

[0012] Preferably, the inner fixed sheet and outer fixed sheet are installed with first installation rod and second installation rod, the micro -switch is provided with through -hole, and the micro -switch is inserted on the first installation rod and second installation rod through the through -hole, and the tail section of the first installation rod and second installation rod is installed through the fastener.

[0013] Preferably, the tail section of the first installation rod and second installation rod is processed into a threaded section, and the threaded section of the tail section of the first installation rod and second installation rod is fixedly connected through the fastener.

[0014] Preferably, the lower end of the left side plate is provided with a mounting foot, and a mounting hole is formed in the mounting foot through a tap.

[0015] Preferably, the left upper corner of the left side plate is not provided with a welding mounting piece.

[0016] Preferably, the spring operating assembly includes a tripping small shaft, a plurality of mounting holes are formed in the tripping small shaft, and a tripping push plate is installed on the mounting hole through a fastener.

[0017] Preferably, the spring operating assembly includes a tripping retaining piece, and the tripping retaining piece is designed in the center.

[0018] The utility model has the following beneficial effects: the mechanism is accommodated with spring operation assembly between left side plate and right side plate, makes the whole structure more compact. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will introduce the drawing needed to be used in the embodiment briefly, obviously, the drawing in the following description is only some of the utility model, for the ordinary skilled in the art, under the premise of not creating the labor, can also obtain other drawings according to these drawings.

[0020] Figure 1 It is the overall structure schematic diagram of the utility model a kind of improved circuit breaker spring operation mechanism;

[0021] Figure 2 It is the utility model Figure 1 It is the structure schematic diagram of enlarged portion III;

[0022] Figure 3 It is the utility model Figure 1 It is the structure schematic diagram of enlarged portion IV;

[0023] Figure 4 It is the structure schematic diagram of micro switch mounting seat subassembly of the utility model;

[0024] Figure 5 It is the left side plate mounting hole installation schematic view of the utility model;

[0025] Figure 6 It is the structure schematic diagram of opening shaft;

[0026] Figure 7 It is the structure schematic diagram of opening holding piece. DETAILED DESCRIPTION

[0027] The following will combine the drawing in the embodiment of the utility model Figures 1-7 , the technical scheme in the embodiment of the utility model is described clearly and completely, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skilled in the art without creating the premise of labor, belong to the scope of the utility model protection.

[0028] Please refer to Figures 1-7The utility model discloses an improved circuit breaker spring operating mechanism, including left side plate 100 and right side plate 101, install the installation space between left side plate 100 and right side plate 101, install spring operating assembly in the installation space, and the working principle of spring operating assembly is prior art, and the present scheme is not detailed, and the working mode of the application for patent mentioned in background art can be referred to, and the present scheme is the improvement scheme for unreasonable position, and the specific improvement scheme is explained as follows:

[0029] The spring operating assembly includes a microswitch assembly, which includes a microswitch 102 and a microswitch mounting seat assembly. The microswitch mounting seat assembly includes a side mounting piece 108 fixedly installed on the left side plate 100. Specifically, a left side plate mounting hole 1001 is formed in the left side plate, and the present scheme uses an elongated hole. A driving bracket is provided on the side mounting piece. The driving bracket has an inner fixing piece 109, a shaft 106 and an outer fixing piece 110 installed on the side mounting piece. The shaft 106 is installed on the inner fixing piece and the outer fixing piece at both ends. The microswitch is installed on the shaft, and under the action of external force, the spring piece can be brought together to the microswitch contact. The microswitch 102 is installed between the inner fixing piece 109 and the outer fixing piece 110. The structure of the present scheme is modularly installed. The design of the microswitch mounting seat assembly allows the microswitch to be installed at a specified position without the need for tedious position testing. It is stable, easy to install, and preferred. The inner fixing piece 109 and the outer fixing piece 110 are installed with a first mounting rod 106 and a second mounting rod 115. The microswitch 102 is provided with a through hole 1021. The microswitch is inserted into the first mounting rod 106 and the second mounting rod 115 through the through hole 1021. The first mounting rod and the second mounting rod are installed by fasteners. Specifically, the first mounting rod 106 and the second mounting rod 115 are threaded segments at the end. The threaded segments of the first mounting rod and the second mounting rod are fixedly connected by fasteners. The fastener is a nut 107. This structure realizes quick installation. The working and effect of the microswitch are prior art and are not detailed. The spring piece is designed below the shaft to prevent loosening.

[0030] The installation method of the microswitch is changed, which is convenient for installation and replacement of the circuit, and the contact is more reliable.

[0031] The above scheme is explained in detail as follows:

[0032] First, the micro switch is stably mounted on the first and second mounting rods between the inner and outer fixing plates. This mounting method not only ensures the horizontal stability of the micro switch but also further enhances its vertical stability by securing the threaded sections of the first and second mounting rods together with fasteners. This dual-protection design makes the micro switch less prone to shaking or shifting after installation, thereby improving the stability and reliability of the entire circuit breaker spring operating mechanism.

[0033] Secondly, the two ends of the shaft are respectively mounted on the inner and outer fixing plates, and the drive plate is mounted on the shaft. This design allows the drive plate to smoothly approach the micro switch under external force, thereby triggering the switch action. The operating sensitivity of the micro switch is significantly improved. During the operation of the circuit breaker, this highly sensitive micro switch can quickly respond to external signals, ensuring timely circuit switching, thereby improving the safety and stability of the power system.

[0034] Finally, this microswitch assembly and its mounting method also facilitate maintenance. When the microswitch needs to be replaced or repaired, the operator can easily remove it from the first and second mounting rods simply by loosening the fasteners. This design not only simplifies the maintenance process but also reduces maintenance costs. Furthermore, because the microswitch mounting assembly has a clear structure and is easy to disassemble, operators can more conveniently inspect and maintain the entire circuit breaker spring operating mechanism, ensuring its long-term stable operation.

[0035] Preferably, the lower end of the left side plate is provided with a mounting foot 116, and the mounting foot has a mounting hole 1161 drilled by a tap. The installation method has been changed from the original use of a nut to direct installation with a tap, which makes assembly convenient and ensures stable and reliable performance.

[0036] The left side panel, specifically the upper left corner A, does not have a welded mounting plate. This structural change eliminates the need for welding in this area, reducing costs while ensuring a more secure installation.

[0037] The spring-operated assembly includes a tripping shaft 112 with several mounting holes. A tripping push plate 111 is mounted on the shaft using fasteners 113. The tripping push plate 111 of the tripping shaft is easy to install and maintain.

[0038] refer to Figure 7 The spring-operated assembly includes a trip holding latch 114, which is centrally located. Previously, it was eccentric, making installation and mechanism stability difficult.

[0039] In the description of the specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The preferred embodiments of the utility model disclosed above are only used for helping to explain the utility model. The preferred embodiments do not describe all the details exhaustively, and also do not limit the utility model to only the specific implementation manners described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited only by the claims and the entire scope and equivalents thereof.

Claims

1. An improved spring operating mechanism of a circuit breaker comprising a left side plate and a right side plate, between which a mounting space is installed, in which a spring operating assembly is installed, the spring operating assembly comprising a micro switch assembly, characterized in that: The micro switch assembly comprises a micro switch and a micro switch mounting seat assembly, the micro switch mounting seat assembly comprises a side mounting piece fixedly mounted with the left side plate, a driving support is arranged on the side mounting piece, the driving support has an inner fixing piece, a shaft rod and an outer fixing piece mounted on the side mounting piece, the shaft rod is mounted on the inner fixing piece and the outer fixing piece at two ends respectively, the micro switch is mounted on the inner fixing piece and the outer fixing piece and has an elastic piece arranged below the shaft rod and capable of being close to the micro switch contact under the action of external force.

2. The improved spring operating mechanism of a circuit breaker as claimed in claim 1, wherein: The first mounting rod and the second mounting rod are mounted between the inner fixing piece and the outer fixing piece, the micro switch is provided with a through hole, and the micro switch is inserted on the first mounting rod and the second mounting rod through the through hole.

3. An improved spring operated mechanism of a circuit breaker as claimed in claim 2 wherein: The end sections of the first mounting rod and the second mounting rod are processed into threaded sections, and the threaded sections of the end sections of the first mounting rod and the second mounting rod are fixedly connected through fasteners.

4. The improved spring operating mechanism of a circuit breaker according to claim 1, wherein: The left side plate is provided with a mounting foot at the lower end, and a mounting hole is arranged on the mounting foot and is tapped.

5. An improved spring operated mechanism of a circuit breaker as claimed in claim 1 or 4 wherein: The left upper corner of the left side plate is not provided with a welding mounting piece.

6. The improved spring operated mechanism of a circuit breaker as claimed in claim 1 wherein: The spring operating assembly comprises an opening shaft, a plurality of mounting holes are arranged on the opening shaft, and an opening push plate is mounted on the mounting holes through fasteners.

7. The improved spring operating mechanism of a circuit breaker according to claim 1, wherein: The spring operating assembly comprises an opening retaining spring, and the opening retaining spring is designed in the center.

Images