A circuit breaker anti-mislocking mechanism

Abstract

The invention discloses a circuit breaker anti-mislocking mechanism, which specifically relates to the technical field of circuit breakers, including a base, a locking assembly arranged on the base, the locking assembly including a support plate arranged on the top of the base, a center frame arranged on the top of the support plate, and a moving contact arranged on the top of the center frame. The invention uses the corresponding coordinated use of various structures, the guide rod is displaced on the center frame along the guide of the guide cylinder, and the top of the moving contact is easy to contact the fixed contact, and the second limit rod is threadedly connected in the thread hole cylinder by rotating the second limit rod, and then the opening and closing positioning function is realized, and the moving contact is prevented from falling off when closing. Each conductive pin can contact the corresponding wiring head of the wiring panel, and the corresponding wire can be connected to the conductive pin, which is easy to transmit current and avoid the situation of closing error. The hook teeth can be stuck on the outside of the nylon knob, and the nylon knob and the push rod are limited to ensure the stability of closing.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and more particularly to a circuit breaker anti-mislocking mechanism. Background Art

[0002] A circuit breaker is an electrical device used to disconnect the current in a circuit. Its main function is to quickly cut off the current when a fault, overload or short circuit occurs in the circuit to prevent dangers such as circuit overload, equipment damage or fire. It is a switching device that can close, carry and disconnect the current under normal circuit conditions, and close, carry and disconnect the current under abnormal circuit conditions within a specified time. The circuit breaker anti-mislocking mechanism is a device that prevents the circuit breaker from being opened or closed by mistake, and it mainly achieves anti-misoperation of high-voltage electrical equipment through a predetermined program locking function.

[0003] Among them, the patent with patent application number CN202123268675.9 discloses an anti-misoperation locking mechanism for a drawer-type circuit breaker, including a drawer seat cover plate, a locking control box, a rocker shaft and a gear. A rocker shaft with a gear is installed on the inner side of the drawer seat cover plate, and a locking control box capable of interference locking the gear on the rocker shaft is installed on the outer side; the locking control box includes an opening box, an inner lining plate, a lock core, a nut, a lock head, an axle pin and a connecting rod assembly; the connecting rod assembly includes a first connecting rod, a second connecting rod and a third connecting rod, a straight rod lock tongue is formed on the third connecting rod, and the gear is provided with a notch that cooperates with the straight rod lock tongue.

[0004] When the structure is in use, the gear on the locking control box matches the rocker shaft, and the straight rod lock tongue is used for collision interference limit when locking. When the straight rod lock tongue is in the locked position, the straight rod lock tongue is close to and can interfere with the notch opened by the gear, which plays a role in preventing rocking in when locking, preventing misoperation, and improving the safety of operation. However, when the structure is opened and closed, it is not easy to ensure the stability after locking, and it is easy to reset and cause misoperation, resulting in low safety performance. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a circuit breaker anti-mislocking mechanism, aiming to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a circuit breaker anti-mislocking mechanism, comprising a base, on which a locking assembly is provided;

[0007] The locking assembly includes a support plate arranged on the top of the base, a center frame is arranged on the top of the support plate, a moving contact is arranged on the top of the center frame, a first limiting rod is arranged on one side of the center frame, and a second limiting rod is arranged on the other side of the center frame, the first limiting rod and the second limiting rod are both threadedly connected to the support plate, and the bottoms of the first limiting rod and the second limiting rod extend to the bottom of the base;

[0008] A protective shell is provided at the bottom of the base, a wiring panel is provided on the outer side of the protective shell, a partition is provided on one side of the inner wall of the wiring panel, a central nylon plate is provided on one side of the partition, a plurality of conductive pins are provided on one side of the central nylon plate, a plurality of conductive pins are rotatably connected to the central nylon plate, and a card slot is provided at the bottom of each conductive pin, a reset rib is clamped in the card slot, a nylon knob is provided on the outer side of the wiring panel, one end of the nylon knob extends to one side of the conductive pin, a push rod extending to the side of the conductive pin is provided on the outer side of the nylon knob, and a plurality of mutually meshing traction teeth are provided on the outer sides of the conductive pin and the push rod, and each of the traction teeth is stacked, and the push rod is tilted toward the side of the conductive pin, and a plurality of wiring heads are provided on the wiring panel, and each of the wiring heads is located on one side of the corresponding conductive pin;

[0009] It can be seen that in the above technical solution, when the nylon knob rotates, the push rod is driven to rotate, so that each traction tooth on the push rod can mesh with the traction teeth on the corresponding conductive pin one by one, and the conductive pin is deflected, so that each conductive pin can contact the corresponding terminal head of the wiring panel, which is convenient for the corresponding wire to be connected to the conductive pin, and the current is convenient. When the nylon knob and the push rod rotate, the outer push disk is rotated, and the outer push disk rotates along the axis point of the connection between the outer push disk and the wiring panel, so that the hook teeth can be stuck on the outside of the nylon knob, the nylon knob and the push rod are limited, and then the corresponding conductive pin can be positioned after being deflected;

[0010] A center plate is provided between the protective shell and the base, a guide cylinder is provided at one end of the center plate, a rotating cylinder is provided on the top of the guide cylinder, the rotating cylinder is located in the center frame, the rotating cylinder is threadedly connected to the moving contact, the rotating cylinder is rotatably connected to the center frame, a gasket is provided at the bottom of the rotating cylinder, a plurality of vertical grooves are provided on the outer side of the gasket, a guide rod is provided at the bottom of the moving contact, the guide rod is located in the guide cylinder and is slidably connected to the guide cylinder, a docking block is provided on the outer side of the guide cylinder, the docking block extends into the vertical groove and is clamped with the vertical groove, a sliding pad is provided at the bottom of the center plate, the sliding pad is located at the top of the protective shell and is slidably connected to the protective shell, a ferrule is provided on the outer side of the center plate, a thread hole cylinder is clamped in the ferrule, the first limiting rod and the second limiting rod are both threadedly connected to the thread hole cylinder, an outer resisting disk is provided on the outer side of the nylon knob, the outer resisting disk is rotatably connected to the wiring panel, and a hook tooth is provided on the outer resisting disk, and the hook tooth is clamped with the nylon knob;

[0011] It can be seen that in the above technical scheme, the guide cylinder and the ferrule are driven to rotate by bending the center plate, and when the guide cylinder rotates, the rotating cylinder and the gasket are driven to rotate through the cooperation of the docking block and the vertical groove, which makes it easy for various structures to be linked. When the rotating cylinder rotates, the moving contact can be displaced on the center frame through the guide rod along the guide cylinder through the torque caused by the rotation of the rotating cylinder, which makes it easy for the top of the moving contact to contact the fixed contact, and then the second limit rod is rotated so that the second limit rod can be threadedly connected in the thread hole cylinder, thereby realizing the opening and closing positioning function, and preventing the moving contact from falling off when closing the switch.

[0012] Technical effects and advantages of the present invention:

[0013] 1. The present invention loosens the first limit rod and the wire hole cylinder, and drives the guide cylinder and the ferrule to rotate by bending the center plate. When the guide cylinder rotates, the docking block and the vertical groove cooperate with each other to drive the rotating cylinder and the gasket ring to rotate, which is easy for various structures to be linked and convenient for current transmission;

[0014] 2. When the drum rotates, the present invention enables the moving contact to move on the center frame through the guide rod along the guide cylinder under the torque of the rotating drum, so that the top of the moving contact is easy to contact the fixed contact, and then the second limiting rod is rotated so that the second limiting rod can be threadedly connected in the thread hole cylinder, thereby realizing the opening and closing positioning function, and preventing the moving contact from falling off when closing the switch;

[0015] 3. When the nylon knob of the present invention rotates, the lever is driven to rotate, so that each traction tooth on the lever can mesh with the traction teeth on the corresponding conductive pin one by one, and the conductive pin is deflected, so that each conductive pin can contact with the corresponding terminal of the wiring panel, making it easy for the corresponding wire to be connected to the conductive pin, and facilitating current transmission;

[0016] 4. In the present invention, when the nylon knob and the lever rotate, the outer lever rotates along the axis point of the connection between the outer lever and the wiring panel by rotating the outer lever, so that the hook teeth can be stuck on the outside of the nylon knob, limiting the position of the nylon knob and the lever, and then the corresponding conductive pin can be positioned after being deflected;

[0017] To sum up, the overall design is simple and the structure is reasonable. Through the corresponding coordination of various structures, the docking block and the vertical groove are used to drive the rotating drum and the gasket to rotate, which is easy for various structures to be linked and convenient for current transmission. The guide rod is displaced on the center frame along the guidance of the guide cylinder, which is easy for the top of the moving contact to contact the fixed contact. By rotating the second limit rod, the second limit rod can be threaded in the wire hole cylinder, and then the opening and closing positioning function is realized to avoid the moving contact from falling off when closing. Each traction tooth on the push rod can be engaged with the traction tooth on the corresponding conductive pin one by one, and the conductive pin is deflected, so that each conductive pin can contact the corresponding terminal head of the wiring panel, which is easy for the corresponding wire to be connected to the conductive pin, easy for current transmission, and avoid closing errors. The hook tooth can be stuck on the outside of the nylon knob to limit the nylon knob and the push rod to ensure the stability of closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required to be used in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can also be obtained based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not limitations on the actual size of the product involved in the embodiments of the present disclosure, the actual process of the method, the actual timing of the signal, etc.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a side view of the overall structure of the present invention.

[0021] Figure 3 For the present invention Figure 2 Schematic diagram of the structure on the right.

[0022] Figure 4 It is a stereoscopic view of the separator, nylon knob, guide cylinder, rotating cylinder, center plate and moving contact of the present invention.

[0023] Figure 5 It is a three-dimensional diagram of the protective shell, the wiring panel, the second limiting rod, the center frame and the outer abutment plate of the present invention.

[0024] Figure 6This is a perspective view of the nylon knob and the central nylon plate of the present invention installed on the protective shell.

[0025] Figure 7 It is a stereoscopic view of the center plate, guide rod, rotating cylinder, ferrule and guide cylinder of the present invention.

[0026] Figure 8 It is a three-dimensional diagram of the protective shell, separator, central nylon plate and conductive pins of the present invention.

[0027] Fig. 9 It is a three-dimensional diagram of the conductive pin, the reset rib and the stop rod of the present invention.

[0028] The reference numerals are: 1, base; 101, support plate; 102, center frame; 103, first limit rod; 104, second limit rod; 105, moving contact;

[0029] 2. Protective shell; 201. Wiring panel; 202. Central nylon plate; 203. Separator; 204. Conductive pin; 205. Card slot; 206. Reset rib; 207. Nylon knob; 208. Stop rod; 209. Traction tooth;

[0030] 3. Center plate; 301. Guide cylinder; 302. Rotating cylinder; 303. Gasket; 304. Vertical groove; 305. Guide rod; 306. Docking block; 307. Sliding pad; 308. Cardan; 309. Thread hole cylinder; 310. External abutment disk; 311. Hook tooth. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The terms "first", "second", "third" in the embodiments of the present application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second", "third" can expressly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0033] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0034] As attached Figure 1-9 The circuit breaker anti-mislocking mechanism shown in the figure, through the locking assembly arranged on the base 1, the docking block 306 and the vertical groove 304 cooperate with each other to drive the rotating drum 302 and the gasket 303 to rotate, which is easy for each structure to be linked and convenient for current transmission. The guide rod 305 moves on the center frame 102 along the guide of the guide cylinder 301, which is easy for the top of the moving contact 105 to contact the fixed contact. By rotating the second limiting rod 104, the second limiting rod 104 can be threadedly connected in the thread hole cylinder 309, thereby realizing the opening and closing positioning function, and preventing the moving contact 105 from being out of position when closing the switch. In the event of a fall-off, each traction tooth 209 on the push rod 208 can mesh with the traction tooth 209 on the corresponding conductive pin 204 one by one, and the conductive pin 204 is deflected, so that each conductive pin 204 can contact the corresponding terminal head of the wiring panel 201, making it easy for the corresponding wire to be connected to the conductive pin 204, making it easy for current to be transmitted, and avoiding the situation of closing error. The hook tooth 311 can be stuck on the outside of the nylon knob 207, limiting the nylon knob 207 and the push rod 208, ensuring the stability of closing, and the specific structure of the component is set as follows;

[0035] The locking assembly includes a support plate 101 arranged on the top of the base 1, a center frame 102 is arranged on the top of the support plate 101, a moving contact 105 is arranged on the top of the center frame 102, a first limiting rod 103 is arranged on one side of the center frame 102, and a second limiting rod 104 is arranged on the other side of the center frame 102, the first limiting rod 103 and the second limiting rod 104 are both threadedly connected to the support plate 101, and the bottoms of the first limiting rod 103 and the second limiting rod 104 extend to the bottom of the base 1.

[0036] A protective shell 2 is provided at the bottom of the base 1, and a wiring panel 201 is provided on the outer side of the protective shell 2. A separator 203 is provided on one side of the inner wall of the wiring panel 201, and a central nylon plate 202 is provided on one side of the separator 203. A plurality of conductive pins 204 are provided on one side of the central nylon plate 202. The plurality of conductive pins 204 are rotatably connected to the central nylon plate 202, and a card slot 205 is provided at the bottom of each conductive pin 204. A reset rib 206 is carded in the card slot 205. The outer side of the wiring panel 201 is provided with a separator 203. There is a nylon knob 207, one end of the nylon knob 207 extends to one side of the conductive pin 204, and a push rod 208 extending to the side of the conductive pin 204 is arranged on the outer side of the nylon knob 207, and a plurality of mutually meshing traction teeth 209 are provided on the outer sides of the conductive pin 204 and the push rod 208, and each traction tooth 209 is stacked, and the push rod 208 is tilted toward the side of the conductive pin 204, and a plurality of wiring heads are arranged on the wiring panel 201, and each wiring head is located on one side of the corresponding conductive pin 204.

[0037] A center plate 3 is provided between the protective shell 2 and the base 1, a guide cylinder 301 is provided at one end of the center plate 3, a rotating cylinder 302 is provided on the top of the guide cylinder 301, the rotating cylinder 302 is located in the center frame 102, the rotating cylinder 302 is threadedly connected to the moving contact 105, the rotating cylinder 302 is rotatably connected to the center frame 102, a gasket 303 is provided at the bottom of the rotating cylinder 302, a plurality of vertical grooves 304 are provided on the outer side of the gasket 303, a guide rod 305 is provided at the bottom of the moving contact 105, the guide rod 305 is located in the guide cylinder 301 and is slidably connected to the guide cylinder 301, and a docking block 303 is provided on the outer side of the guide cylinder 301 6. The docking block 306 extends into the vertical groove 304 and is engaged with the vertical groove 304. A sliding pad 307 is provided at the bottom of the center plate 3. The sliding pad 307 is located at the top of the protective shell 2 and is slidably connected to the protective shell 2. A clamping sleeve 308 is provided on the outer side of the center plate 3. A thread hole tube 309 is engaged in the clamping sleeve 308. The first limiting rod 103 and the second limiting rod 104 are both threadedly connected to the thread hole tube 309. An outer resistance disk 310 is provided on the outer side of the nylon knob 207. The outer resistance disk 310 is rotatably connected to the wiring panel 201. A hook tooth 311 is provided on the outer resistance disk 310, and the hook tooth 311 is engaged with the nylon knob 207.

[0038] According to the above structure, when in use, the staff installs the device at the designated position. When in use, the first limit rod 103 is rotated counterclockwise to loosen the first limit rod 103 and the thread hole tube 309. The guide tube 301 and the ferrule 308 are driven to rotate by bending the center plate 3. When the guide tube 301 rotates, the rotating tube 302 and the gasket 303 are driven to rotate through the cooperation of the docking block 306 and the vertical groove 304, which facilitates the linkage of various structures.

[0039] When the rotating drum 302 rotates, the moving contact 105 can be displaced on the center frame 102 along the guide of the guide cylinder 301 through the guide rod 305 due to the torque caused by the rotation of the rotating drum 302, so that the top of the moving contact 105 is easy to contact the fixed contact, and then the second limiting rod 104 is rotated so that the second limiting rod 104 can be threadedly connected in the thread hole cylinder 309, thereby realizing the opening and closing positioning function, and preventing the moving contact 105 from falling off when closing the switch.

[0040] At the same time, by rotating the nylon knob 207, the rotation of the nylon knob 207 drives the push rod 208 to rotate, and then each traction tooth 209 on the push rod 208 can be meshed with the traction teeth 209 on the corresponding conductive pin 204 one by one, and the conductive pin 204 is deflected, so that each conductive pin 204 can contact the corresponding terminal head of the wiring panel 201, which is convenient for the corresponding wire to be connected to the conductive pin 204, and easy to transmit current.

[0041] And when the nylon knob 207 and the push rod 208 rotate, by rotating the outer push disk 310, the outer push disk 310 rotates along the axis point of the connection between the outer push disk 310 and the wiring panel 201, so that the hook teeth 311 can be stuck on the outside of the nylon knob 207, limiting the nylon knob 207 and the push rod 208, and then the corresponding conductive pin 204 can be positioned after being deflected.

[0042] Different from the prior art, the present application discloses a circuit breaker anti-mislocking mechanism, which drives the rotating drum 302 and the gasket 303 to rotate through the cooperation of the docking block 306 and the vertical groove 304, which facilitates the linkage of various structures and facilitates current transmission. The guide rod 305 moves on the center frame 102 along the guide of the guide cylinder 301, which facilitates the top of the moving contact 105 to contact the fixed contact. By rotating the second limiting rod 104, the second limiting rod 104 can be threadedly connected in the thread hole cylinder 309, thereby realizing the opening and closing positioning function, avoiding the moving contact 105 If the switch falls off during closing, each traction tooth 209 on the push rod 208 can mesh with the traction teeth 209 on the corresponding conductive pin 204 one by one, and cause the conductive pin 204 to deflect, so that each conductive pin 204 can contact the corresponding terminal head of the wiring panel 201, making it easy for the corresponding wire to be connected to the conductive pin 204, facilitating current transmission and avoiding closing errors. The hook tooth 311 can be stuck on the outside of the nylon knob 207 to limit the nylon knob 207 and the push rod 208 to ensure the stability of closing.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A circuit breaker anti-mislocking mechanism, comprising a base, characterized in that: A locking assembly is provided on the base; The locking assembly comprises a support plate arranged on the top of the base, a center frame is arranged on the top of the support plate, and a moving contact is arranged on the top of the center frame; A protective shell is provided at the bottom of the base, a wiring panel is provided on the outer side of the protective shell, a separator is provided on one side of the inner wall of the wiring panel, a central nylon plate is provided on one side of the separator, and a plurality of conductive pins are provided on one side of the central nylon plate; A center plate is arranged between the protective shell and the base, and a guide cylinder is arranged at one end of the center plate; A first limiting rod is provided on one side of the central frame, and a second limiting rod is provided on the other side of the central frame, the first limiting rod and the second limiting rod are both threadedly connected to the support plate, and the bottoms of the first limiting rod and the second limiting rod extend to the bottom of the base; A nylon knob is provided on the outside of the wiring panel, one end of the nylon knob extends to one side of the conductive pin, a push rod is provided on the outside of the nylon knob and extends to the side of the conductive pin, and a plurality of mutually meshing traction teeth are provided on the outside of the conductive pin and the push rod, and each traction tooth is stacked, and the push rod is inclined to the side facing the conductive pin, and a plurality of wiring heads are provided on the wiring panel, and each wiring head is respectively located on one side of the corresponding conductive pin, a rotating cylinder is provided on the top of the guide cylinder, the rotating cylinder is located in the center frame, the rotating cylinder is threadedly connected to the moving contact, the rotating cylinder is rotatably connected to the center frame, a gasket is provided on the bottom of the rotating cylinder, a plurality of vertical grooves are provided on the outside of the gasket, a guide rod is provided at the bottom of the moving contact, the guide rod is located in the guide cylinder and is slidably connected to the guide cylinder, a docking block is provided on the outside of the guide cylinder, and the docking block extends into the vertical groove and is clamped with the vertical groove; The outer side of the central plate is provided with a ferrule, a thread hole cylinder is clamped in the ferrule, and the first limiting rod and the second limiting rod are both threadedly connected to the thread hole cylinder; An outer abutment disk is arranged on the outer side of the nylon knob, the outer abutment disk is rotatably connected with the wiring panel, and hook teeth are arranged on the outer abutment disk, and the hook teeth are clamped with the nylon knob.

2. The circuit breaker anti-mislocking mechanism according to claim 1, characterized in that: The plurality of conductive pins are all rotatably connected to the central nylon plate, and a clamping groove is provided at the bottom of each conductive pin, and a reset rib is clamped in the clamping groove.

3. The circuit breaker anti-mislocking mechanism according to claim 1, characterized in that: A sliding pad is arranged at the bottom of the central plate, and the sliding pad is located on the top of the protective shell and is slidably connected with the protective shell.

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