Closing interlocking mechanism of circuit breaker operating mechanism
Technical Field
The utility model relates to a circuit breaker technical field specifically says so and relates to a circuit breaker operating device combined floodgate interlocking device.
Background
The circuit breaker is an important part of a distribution electrical appliance, is mainly used for an industrial low-voltage power system, and is used for connecting and disconnecting current in a power grid circuit and protecting lines and power supply equipment from damage caused by faults of overload, undervoltage, short circuit, single-phase grounding and the like.
Circuit breakers are classified into high-voltage circuit breakers and low-voltage circuit breakers according to their range of use. The low-voltage circuit breaker is also called an automatic switch, commonly called an air switch and also called a low-voltage circuit breaker, and is an electric appliance which not only has the function of a manual switch, but also can automatically perform voltage loss, undervoltage, overload and short-circuit protection. It can be used for distributing electric energy, starting asynchronous motor infrequently, protecting power supply circuit and motor, etc., when they are seriously overloaded or short-circuited or under-voltage, etc. faults occur, it can automatically cut off circuit, its function is equivalent to the combination of fuse type switch and over-and under-heat relay, etc., and after breaking fault current, it does not need to change parts, so that it has been extensively used.
A closing electromagnet of a closing execution structure of a circuit breaker in the existing market is fixed above an operating mechanism and can provide a remote closing function for the circuit breaker, a cantilever is arranged on a closing lock catch of the operating mechanism, and an iron core of the closing electromagnet is positioned above the cantilever of the closing lock catch of the operating mechanism; when remote switching-on is needed, the iron core of the switching-on electromagnet can be controlled to be ejected out to touch the switching-on lock catch of the operating mechanism, and then the cantilever on the switching-on half shaft of the operating mechanism is pushed to enable the half shaft to rotate, so that the mechanism can carry out switching-on operation. When the circuit breaker is in the processes of factory detection and customer installation and maintenance, the operating mechanism button needs to be manually pressed to realize the closing of the circuit breaker.
When the button is pressed manually to present traditional circuit breaker, need great operating force, press and experience relatively poor, simultaneously because operating force is big, the button damages easily.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a big and fragile technical defect of breaker operating device button operating force to above-mentioned current, provide a breaker operating device combined floodgate interlocking device, reduce the operating force through interlocking device, reduce through the operating force simultaneously and improve button part life, the second grade motion transmission can make the motion transmission more stable, can automatic re-setting not interfere combined floodgate operation after combined floodgate operation begins.
Technical scheme
In order to realize the technical purpose, the utility model provides a circuit breaker operating device combined floodgate interlocking device, its characterized in that: the automatic switching-on device comprises an installation bottom plate, a driving piece is installed on the installation bottom plate and can move back and forth, a reset elastic piece is connected with the driving piece and can drive the driving piece to reset, the driving piece is installed on the installation bottom plate and can push a first-level rotating plate to rotate in the moving process, the first-level rotating plate can push a second-level linkage rod to move in the rotating process, and the second-level linkage rod can drive the switching-on half shaft to rotate in the moving process.
Preferably, the driving piece is a button, a sliding groove hole is formed in the button, one end of a button installation shaft is fixedly installed on the installation bottom plate, the other end of the button installation shaft penetrates out of the sliding groove hole, one end of the button installation shaft penetrates out of the sliding groove hole and is limited by a clamp spring, and the button is installed on the button installation shaft and can horizontally move back and forth. By adopting the structure, the button can be arranged at any position of the operating mechanism, and the aesthetic feeling of the appearance of the operating mechanism is ensured.
Preferably, the elastic component that resets is the extension spring that resets, extension spring one end that resets is connected on the button, and the other end dress is in button installation epaxial.
Furthermore, the first-level rotating plate extends out of the boss and the protruding plate, the first-level rotating plate is mounted on the mounting base plate through a shaft, the first-level rotating plate is linked with the protruding rod arranged on the button through the boss, the first-level rotating plate is linked with the second step at the upper end of the second-level linkage rod through the first step at the front end of the protruding plate in an overlapping mode, the lower end of the second-level linkage rod is in pivot connection with the closing half shaft, the second-level linkage rod can drive the closing half shaft to rotate in the downward movement process, and the closing half shaft can unlock the closing lock catch in the rotation process.
Further, a return torsion spring is mounted on the shaft to provide a return force to the primary pivotal plate.
Preferably, 2 sliding groove holes are formed in the button in a vertical side-by-side mode.
Preferably, the mounting bottom plate is a side plate.
Preferably, the second-level linkage rod is connected with a linkage rod tension spring to enable the second-level linkage rod to have a tendency of rotating around the lower end, so that the first step and the second step are in lap joint.
Advantageous effects
The utility model provides a pair of circuit breaker operating device combined floodgate interlocking device, through multipolar linkage transmission, the external force that needs when having reduced the operation has increased the comfort level of operation, the second grade motion transmission can make the motion transmission more stable, reduces through the operating force simultaneously and improves button part life, whole interlocking device locks to the state before closing a floodgate semi-axis, avoid the maloperation to lead to the incident, can automatic re-setting not interfere closing a floodgate operation after closing a floodgate operation begins.
Drawings
Fig. 1 is a schematic structural diagram of an operating mechanism in an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an interlocking mechanism according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a button in an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a one-level rotating plate according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a second-stage linkage rod in an embodiment of the present invention.
Fig. 6 is the structural schematic diagram of combined floodgate semi-axis in the embodiment of the utility model.
Fig. 7 is the embodiment of the utility model provides a be in the structural schematic diagram who waits to close a floodgate state.
Fig. 8 is a schematic structural diagram of the embodiment of the present invention in a closing state.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Example 1
Referring to fig. 1 and 2, a closing interlock mechanism for a circuit breaker operating mechanism includes a mounting base plate 1, and in this embodiment, the mounting base plate 1 is preferably a side plate. Drive piece 2 dress is in can back and forth movement on the mounting plate 1, reset elastic component 3 with drive piece 2 is connected and can be ordered about drive piece 2 resets, in this embodiment, the elastic component 3 that resets is the extension spring that resets, extension spring one end that resets is connected on the button, the other end dress is in on the installation axle 7 of button. The driving piece 2 is arranged on the mounting base plate 1 and can push the first-stage rotating plate 4 to rotate in the motion process, the first-stage rotating plate 4 can push the second-stage linkage rod 5 to move in the rotation process, and the second-stage linkage rod 5 can drive the closing half shaft 6 to rotate in the motion process.
In this embodiment, as shown in fig. 2 and 3, the driving member 2 is a button, the button is provided with a sliding slot 201, and in this embodiment, it is preferable that the button is provided with 2 sliding slots 201 side by side up and down. Button installation axle 7 one end is fixed to be adorned on mounting plate 1, and the other end is worn out slip slotted hole 201, button installation axle 7 is worn out the one end of slip slotted hole 201 is spacing with jump ring 8, the button dress is in can the horizontal back and forth movement on the button installation axle 7.
As shown in fig. 2, 3,4,5 and 6, boss 401 and boss 402 are stretched out to one-level rotor plate 4, one-level rotor plate 4 is in through axle 9 dress on mounting plate 1, and reset torsion spring 12 is adorned can be given on the axle 9 one-level rotor plate 4 provides the restoring force, and reset torsion spring 10 one end supports one-level rotor plate 4, and the other end supports the curb plate gives one-level rotor plate 4 anticlockwise pivoted restoring force.
As shown in fig. 2, 3,4,5 and 6, the first-level rotating plate 4 is linked with the protruding rod 202 arranged on the button through a boss 401, the first-level rotating plate 4 is linked with the second-level linkage rod 501 arranged at the upper end of the second-level linkage rod 5 through the first step 402a at the front end of the protruding plate 402 in an overlapping manner, specifically, the first step 402a and the second step 501 are ensured to be overlapped with each other by the linkage rod tension spring 11 connected to the second-level linkage rod 5, and the other end of the linkage rod tension spring 11 is installed on the side plate. The lower end of the second-stage linkage rod 5 is pivotally connected with the closing half shaft 6, the second-stage linkage rod 5 can drive the closing half shaft 6 to rotate in the downward movement process, and the closing half shaft 10 can unlock the closing lock catch 12 in the rotation process.
As shown in fig. 7, when a closing operation is required, after an external force is applied to the button, the button slides towards the inside of the operating mechanism in the sliding slot 201 against the resistance of the return tension spring, the button pushes the boss 401 through the protruding rod 202 to drive the first-stage rotating plate 4 to rotate clockwise, the first-stage linkage plate 4 pushes the step two 501 through the step one 402a during the clockwise rotation to drive the second-stage linkage rod 5 to move downwards, the second-stage linkage rod 5 pushes the closing half shaft 6 to rotate during the downward movement, the amount of the locking between the closing half shaft 6 and the opening latch 12 is gradually reduced, when the amount of the locking is reduced to zero, the locking between the closing half shaft and the closing latch of the operating mechanism is broken, and then the locking state between the cam 13, the closing latch 12 and the energy storage lever 14 is broken, the energy storage lever 14 rapidly acts under the action of the main spring 15 to push the connecting rod assembly 16 to act, thereby driving the main shaft of the operating mechanism to rotate, and enabling the operating mechanism to reach a closing state as shown in attached figure 8.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.