CN109712832B - Misoperation prevention system and plug box - Google Patents
Misoperation prevention system and plug box Download PDFInfo
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- CN109712832B CN109712832B CN201910166118.4A CN201910166118A CN109712832B CN 109712832 B CN109712832 B CN 109712832B CN 201910166118 A CN201910166118 A CN 201910166118A CN 109712832 B CN109712832 B CN 109712832B
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Abstract
The application discloses an anti-misoperation system, which comprises a rotating shaft device and a protection device, wherein the rotating shaft device is provided with a holding end, a connecting end and a blocking end, the blocking end is used for establishing connection with an external device, and the position of the rotating shaft device is changed by applying a rotating force to the holding end so as to change the connection relation between the blocking end and the external device. The protection device is connected with the working circuit, and a linkage relation is established with the connecting end of the rotating shaft device, so that the effect of switching the state of the protection device by changing the position of the rotating shaft device is realized, and the switching of the disconnection state of the working circuit and the operation of the rotating shaft device can be synchronously performed. When the illegal operation occurs, the working circuit can be passively disconnected based on the illegal operation behavior, so that the safety of the working process is ensured.
Description
Technical Field
The application relates to the technical field of power transmission devices, in particular to an anti-misoperation system and an inserting box.
Background
With the advent of modern industrial facilities and equipment, the power consumption of various industries is rapidly increased, and particularly, the occurrence of numerous high-rise buildings and large-scale factory workshops, the conventional cable serving as a power transmission wire cannot meet the requirements in a high-current transmission system, and the parallel connection use of multiple cables brings a plurality of inconveniences to field installation construction connection. The plug-in bus duct is a novel distribution wire, compared with the traditional cable, the bus duct fully shows the superiority when large current is conveyed, meanwhile, due to the adoption of a new technology and a new process, the contact resistance and the temperature rise of the connection part of two ends of the bus duct and the plug-in part of a branching port are greatly reduced, and a high-quality insulating material is used in the bus duct, so that the safety and the reliability of the bus duct are improved, and the whole system is more perfect.
The existing bus duct is provided with an open-ended strip-shaped cavity for the bottom surface, and comprises a top plate, two side plates and a bottom plate, wherein the top plate, the side plates and the bottom plate can be integrated, and the open-ended length is consistent with the length of the bus duct. The jack box is installed on the bottom plate of bus duct, and jack box top is equipped with outstanding wiring seat, and the wiring seat gets into in with the bus duct after the installation, is connected with the busbar. The top of the box body of the jack box is provided with a fixing structure which is detachably connected with the bus duct bottom plate, and the fixing structure is usually connected and fixed by bolts, and a plurality of hole sites are required to be arranged on the bus duct bottom plate, so that the dismounting operation of the jack box is not simple and fast enough, and the mounting position of the jack box is limited to a certain extent.
In order to solve the inconvenient problem of jack box dismouting among the prior art, current novel jack box fixed establishment, knob, connecting rod and stationary blade, the connecting rod runs through the jack box, and the knob is connected to the lower extreme, and the stationary blade is connected to the upper end, drives the stationary blade joint in the draw-in groove of the interior below of bus duct through rotating the knob, has realized that the jack box carries out quick assembly disassembly in the arbitrary non-connector position on the bus duct, and the structure is also comparatively simple. However, the above jack box fixing mechanism has no linkage relationship with the circuit in the jack box, in other words, when the jack box is in circuit communication with the bus duct, the jack box can be easily separated from the bus duct by operating the knob connecting rod, and the circuit is always kept in a channel state, so that a live operation phenomenon which should be avoided in line construction is generated, and serious potential safety hazards exist.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the application and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the application and in the title of the application, which may not be used to limit the scope of the application.
Therefore, the technical problem to be solved by the application is to overcome the defect that the plug box connected with the bus duct in a rotary fixing mode in the prior art can not be subjected to standard operation to generate hot plug when being disassembled, so as to provide an anti-misoperation system capable of automatically powering off when being disassembled and the plug box with the same.
In order to solve the technical problems, the application provides the following technical scheme:
an anti-misoperation system comprises the following components,
the rotating shaft device comprises a holding end, a connecting end and a blocking end, and rotation force is applied to the blocking end from the holding end so that the rotating shaft device rotates between a first position and a second position;
the protection device is connected with the working circuit, is arranged on one side of the rotating shaft device in a linkage way with the connecting end, and has a first state allowing the working circuit to be communicated and a second state disconnecting the working circuit;
when the rotating shaft device rotates from the first position to the second position, the protection device is triggered to switch from the first state to the second state.
As a preferable mode of the anti-misoperation system of the present application, the protection device comprises,
the circuit breaking module is connected with the working circuit and used for controlling the communicable state of the working circuit;
and the triggering structure is connected with the circuit breaking structure and the connecting end of the rotating shaft device, and the driving force generated when the rotating shaft device rotates from the first position to the second position triggers the circuit breaking module to switch from the first state to the second state.
As a preferable mode of the anti-misoperation system of the application, the circuit breaking module comprises
The circuit breaker is connected to the working circuit and used for controlling the on-off state of the working circuit;
the protection circuit is electrically connected with the circuit breaker and is connected with the trigger structure; the trigger structure controls the on-off state of the protection circuit, and when the protection circuit is communicated, the circuit breaker trips, so that the protection device is switched from the first state to the second state.
As a preferable scheme of the misoperation prevention system, the protection circuit comprises a micro switch connected with the trigger structure, and the micro switch is electrically connected with the circuit breaker; the triggering structure controls the on-off state of the micro switch through the driving force generated by the rotating shaft device; when the button of the micro switch is pressed by the trigger structure, the circuit breaker breaks the working circuit.
As a preferable mode of the misoperation prevention system, the triggering structure comprises
The elastic pressing piece is fixedly arranged above the micro switch and is separated from the button in a natural state;
the trigger piece is arranged on the connecting end of the rotating shaft device, and when the rotating shaft device rotates to the second position, the trigger piece drives the elastic pressing piece to press a button on the micro switch.
As a preferable mode of the misoperation prevention system, the triggering piece is a cam arranged on the connecting end along the radial direction, and when the rotating shaft device is in the second position, the cam rotates along with the rotating shaft to press down the elastic pressing piece; when the rotating shaft device is positioned at the first position, the cam enables the elastic pressing piece to restore to a natural state.
The application also provides an inserting box, which comprises the misoperation prevention system, wherein the box body of the inserting box is detachably connected to a bus duct through the blocking end of the rotating shaft device, and the working circuit and the misoperation prevention system are arranged in the inserting box; when the blocking end is fixedly connected with the bus duct, the rotating shaft device is positioned at the first position; when the blocking end is separated from the bus duct, the rotating shaft device is located at the second position.
As a preferable scheme of the plug-in box, the connecting end is a rotating shaft which is movably arranged on the box body along the axial direction of the connecting end, a compression spring is sleeved on the rotating shaft, two ends of the compression spring are respectively abutted against the inner wall of the box body and a boss on the rotating shaft, and the compression spring applies force to the rotating shaft to move in the direction away from the bus duct so that the blocking end is tightly attached to the bus duct.
As a preferable scheme of the jack box, the blocking end is a fixed plate fixedly connected to one end, close to the bus duct, of the rotating shaft, the fixed plate is suitable for being clamped in an opening of the bus duct, the maximum length of the fixed plate is larger than the width of the bus duct opening, and the minimum length of the fixed plate is smaller than the width of the bus duct opening.
As a preferable scheme of the jack box, the box body is provided with a limiting mechanism for limiting the rotation angle of the rotating shaft, the limiting mechanism comprises a first limiting part and a second limiting part, and when a limiting pin arranged on the rotating shaft is respectively abutted against the first limiting part and the second limiting part, the rotating shaft is respectively positioned at the first position and the second position.
As a preferable scheme of the plug box, the plug box also comprises an error warning device, a locking mechanism and a control device, wherein the error warning device comprises a mask covered outside the circuit breaker, and the locking mechanism is arranged between the rotating shaft and the mask; the visor is capable of fully covering the circuit breaker only when the rotating shaft is in the first position, and driving the locking mechanism to lock the rotating shaft.
As a preferred embodiment of the jack box of the present application, the locking mechanism includes,
the locking pin is movably arranged on the mounting frame along the radial direction of the rotating shaft,
the pin hole is formed in the rotating shaft in the radial direction, and when the rotating shaft is positioned at the first position, the pin hole is aligned with the locking pin;
the locking pin is sleeved with a reset spring, and a force for moving the locking pin in a direction away from the rotating shaft is applied to the locking pin;
one end of the locking pin, which is far away from the rotating shaft, protrudes out of the panel of the box body towards the mask; pushing the locking pin into the pin hole when the face shield is closed; when the face shield is opened, the return spring drives the locking pin out of the pin hole.
The application has the beneficial effects that:
1. the application provides an anti-misoperation system, which comprises a rotating shaft device and a protection device, wherein the rotating shaft device is provided with a holding end, a connecting end and a blocking end, the blocking end is used for establishing connection with an external device, and the position of the rotating shaft device is changed by applying a rotating force to the holding end so as to change the connection relation between the blocking end and the external device. The protection device is connected with the working circuit, and a linkage relation is established with the connecting end of the rotating shaft device, so that the effect of switching the state of the protection device by changing the position of the rotating shaft device is realized, and the switching of the disconnection state of the working circuit and the operation of the rotating shaft device can be synchronously performed. When the illegal operation occurs, the working circuit can be passively disconnected based on the illegal operation behavior, so that the safety of the working process is ensured.
2. According to the plug box provided by the application, the error warning device is arranged, the mode that the mask covered outside the circuit breaker is matched with the locking pin in the locking mechanism is adopted, and the position of the rotating shaft is displayed by utilizing the closing state of the mask, so that an operator can intuitively judge whether the rotating shaft rotates in place or not, and the connection stability of the plug box and the bus duct is ensured. When the face guard can be closed, the locking pin enters the pin hole in the rotating shaft to lock the rotating shaft, and misoperation caused by random rotation of the rotating shaft when the circuit breaker is closed can be effectively prevented.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
fig. 1 is a schematic diagram of the anti-misoperation system in the embodiment 1;
fig. 2 is a schematic diagram of the structure of the anti-misoperation system in the embodiment 2;
FIG. 3 is a schematic view of the spindle apparatus in the first position in the embodiments 2 and 3;
FIG. 4 is a schematic view of the second position of the spindle assembly according to embodiment 2;
fig. 5 is a schematic perspective view of the jack box in embodiment 2 and embodiment 3;
fig. 6 is a schematic structural diagram of connection between the jack box and the bus duct in embodiment 3;
FIG. 7 is a schematic structural diagram of the anti-error warning device in embodiment 3;
fig. 8 is a schematic structural view of a limiting mechanism in embodiment 3;
fig. 9 is a schematic structural diagram of an anti-error warning device in embodiment 4.
Description of the reference numerals
100. A spindle device; 101. a holding end, 102, a connecting end, 103 and a blocking end; 102a, a rotating shaft; 102b, compressing a spring; 102 c-a limiting pin; 103a, a fixing plate; 200. a protection device; 201. a circuit breaking module; 201a, a circuit breaker; 201b, a micro-switch; 202. a trigger structure; 202a, elastic tabletting; 202b, a trigger; 201b-1, buttons; 202b-1, cam; 300. a case; 301. a wire holder; 400. bus duct; 401. a bottom plate; 402. an opening; 500. a limiting mechanism; 501. a first limiting member; 502. a second limiting piece; 503. a first limit groove; 504-a second limit groove; 600. an error-proof warning device; 601. a face mask; 602. a locking mechanism; 601a, through holes; 602a, locking pins; 602b, pin holes; 602c, a return spring; 602d, mounting frame.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will become more readily apparent, a more particular description of the application will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present application is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the application. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
The structure of the anti-misoperation system is shown in fig. 1, and the anti-misoperation system comprises a rotating shaft device 100 and a protection device 200, wherein the rotating shaft device 100 is provided with a holding end 101, a connecting end 102 and a blocking end 103, and the blocking end 103 is used for connecting an external device. By applying a rotational force to the holding end 101, the spindle means is rotated between a first position and a second position. By changing the position of the rotating shaft device 100, the connection relationship between the blocking end 103 and the external device is further changed. The spindle device 100 in this embodiment is in the first position. The blocking end 103 is connected to an external device, and when the rotating shaft device 100 rotates to the second position, the blocking end 103 is separated from the external device.
The protection device 200 is connected with the working circuit, is arranged in linkage with the connecting end of the rotating shaft device, has a first state allowing the working circuit to be communicated and a second state disconnecting the working circuit, and triggers the protection device 200 to switch from the first state to the second state when the rotating shaft device 100 rotates from the first position to the second position.
The protection device 200 establishes a linkage relationship between the connection end 102 of the rotating shaft device 100 and the working circuit, and when the holding end 101 of the rotating shaft device 1010 rotates the rotating shaft device 100 to the second position, the protection device 200 automatically switches to the second state to cut off the working circuit, thereby realizing the effect of switching the state of the protection device 200 by changing the position of the rotating shaft device 100, so that the switching of the off state of the working circuit and the operation of the rotating shaft device 100 are synchronously performed. When the illegal operation occurs, the working circuit can be automatically disconnected based on the illegal operation behavior, so that the safety of the working process is ensured.
Example 2
The present embodiment provides an anti-misoperation system, which includes a rotating shaft device 100 and a protection device 200, wherein the rotating shaft device 100 has a holding end 101, a connecting end 102 and a blocking end 103, the blocking end 103 is used for establishing connection with an external device, and the position of the rotating shaft device 100 is changed by applying a rotation force to the holding end 101, so as to change the connection relationship between the blocking end 103 and the external device. The protection device 200 establishes a linkage relationship between the connection end 102 of the rotation shaft device 100 and the operation circuit, thereby achieving an effect of switching the state of the protection device 200 by changing the position of the rotation shaft device 100, so that the switching of the off state of the operation circuit and the operation of the rotation shaft device 100 are performed in synchronization.
Specifically, as shown in fig. 5, the anti-misoperation system in this embodiment is disposed in a box 300 of the jack box, a connection end 102 of the rotating shaft device 100 is a rotating shaft 102a penetrating through the box 300, and a holding end 101 and a blocking end 103 are respectively disposed at two ends of the rotating shaft 102a and are located outside the box 300. The protection device 200 is disposed in the case 300, located at one side of the rotating shaft 102a, and connected to the working circuit. When the blocking end 103 is fixedly connected with an external device, so that the case 300 is integrated with the external device, the rotating shaft 102a is at the first position; when the connection relationship between the blocking end 103 and the external device is lost, so that the case 300 can be separated from the external device, the rotation shaft 102a is in the second position. When the working circuit is connected, the rotating shaft device 100 is directly rotated to separate the box 300 from an external device, so that the danger of live operation is easily generated, and the box belongs to illegal operation. Therefore, by providing an anti-misoperation system, when the box 300 is dismantled in a live state, the circuit in the box 300 can be automatically cut off, and the risk of illegal operation is eliminated.
The protection device 200 in this embodiment includes a circuit breaking module 201 and a triggering structure 202, where the circuit breaking module 201 controls the communicable state of the working circuit, has a first state allowing the working circuit to communicate and a second state disconnecting the working circuit, and when the rotating shaft device 100 rotates from the first position to the second position, the triggering structure 202 is driven to trigger the circuit breaking module 201 to switch from the first state to the second state, so that the working circuit cannot communicate, and the risk possibly caused by misoperation is eliminated. The triggering structure 202 is arranged between the connecting end 102 and the circuit breaking module 201, and converts the driving force generated by the position change of the rotating shaft device 100 into a condition for triggering the state change of the circuit breaking module 201, so that the behavior of the illegal operation of the rotating shaft device 100 becomes a triggering condition for disconnecting a working circuit, and the function of preventing misoperation is realized.
The circuit breaking module 201 in this embodiment includes a circuit breaker 201a and a protection circuit, where the circuit breaker 201a is connected to the working circuit to control the on-off state of the working circuit. The protection circuit is electrically connected to the circuit breaker 201a, and when the protection circuit is connected, the circuit breaker 201a is triggered to trip open the operating circuit.
Specifically, as shown in fig. 2, the protection circuit in this embodiment has a micro switch 201b disposed near the rotating shaft 102a and electrically connected to the circuit breaker 201a, and when the button 201b-1 on the micro switch 201b is pressed, the protection circuit is connected to trigger the circuit breaker 201a to trip to cut off the working circuit in the box 300, so as to ensure that the plug box and the external device are in a power-off state, thereby improving operation safety.
As shown in fig. 2 and 3, the triggering structure 202 is connected between the rotating shaft 102a and the micro switch 201b, the triggering structure 202 is composed of an elastic pressing piece 202a and a triggering piece 202b, the elastic pressing piece 202a is arranged above a button 201b-1 of the micro switch 201b, one side of the elastic pressing piece 202a is fixed on the micro switch 201b, and in a natural state, the micro switch is turned up on the micro switch 201b, and the elastic pressing piece 202a and the button 201b-1 are separated. The trigger 202b is a cam 202b-1 fixedly disposed on the shaft 102a, and the cam 202b-1 rotates with the shaft 102a. As shown in fig. 3, when the rotating shaft 102a is located at the first position, the cam 202b-1 is located at a position that enables the elastic pressing piece 202a to be in a natural state, the button 201b-1 of the micro switch 201b is not pressed down, and the circuit breaker 201a can close to complete the working circuit in the case 300. As shown in fig. 4, when the rotation shaft 102a rotates from the first position to the second position, the cam 202b-1 pushes the elastic pressing piece 202a to press the button 201b-1, so that the circuit breaker 201a trips to close the operating circuit in the case 300.
By utilizing the characteristic that the radius of the cam 202b-1 can change during rotation, the elastic pressing piece 202a is released and pressed at the first position and the second position respectively, so that the function of triggering the tripping operation of the circuit breaker 201a by the micro switch 201b when the rotating shaft 102a is at the second position, namely the plug box can be removed, and the safety of operators is ensured. When the rotating shaft 102a is at the first position, the micro switch 201b is not triggered, so that the breaker 201a can normally realize closing.
Example 3
The present embodiment provides an jack box, as shown in fig. 5, in which a misoperation preventing system and a working circuit in embodiment 2 are provided in a box 300, and a circuit breaker 201a in the misoperation preventing system controls the on-off state of the working circuit in the box 300. As shown in fig. 5 and 6, the port of the working circuit is arranged on the wire holder 301, and the wire holder 301 is inserted into the bus duct 400 to be connected with the bus, so that the functions of electricity taking and intelligent detection are realized. The blocking end 103 of the rotating shaft device 100 can enter the bus duct 400 and is clamped with the bus duct 400, so that the box 300 and the bus duct 400 are connected into a whole. By applying a rotational force to the holding end 101 of the rotating shaft device 100, the direction of the blocking end 103 on the rotating shaft 102a is changed, and the box 300 and the bus duct 400 are quickly assembled and disassembled. When the case 300 can be fixedly connected with the bus duct 400, the rotating shaft device 100 is at the first position; when the case 300 can be separated from the bus duct 400, the rotating shaft device 100 is in the second position.
The anti-misoperation system establishes a linkage relation between the circuit breaker 201a and the rotating shaft 102a, and when the rotating shaft 102a rotates to a second position where the box 300 is separated from the bus duct 400, the anti-misoperation system triggers the circuit breaker 201a to cut off a working circuit in the box 300. The anti-misoperation system utilizes the driving force generated by rotation of the rotating shaft 102a to trigger the connection of the protection circuit, so that the circuit breaker 201a passively cuts off the working circuit when the rotating shaft 102a rotates, and even if an operator forgets to close the circuit breaker 201a and directly dismount the plug-in box, the working circuit in the box 300 can be ensured to be in a cut-off state, thereby avoiding the occurrence of the operation of live plug-in and improving the safety of construction.
As shown in fig. 6, the bus duct 400 in this embodiment is an overhead bus duct 400, and adopts a circuitous U-shaped structure, the bus duct 400 is composed of two side plates, a top plate and a bottom plate 401, an opening 402 is formed on the bottom plate 401, and the jack box is installed at the bottom of the bus duct 400 through a rotation fixing structure. The blocking end 103 in this embodiment is a fixing plate 103a, and is rectangular in shape, the length of the long side of the rectangle is greater than the width of the opening 402, and the length of the short side is less than the length of the opening 402. When the rotating shaft 102a is at the second position, the long side of the rectangle is parallel to the length direction of the bus duct 400, the fixing plate 103a can enter the opening 402, then the rotating shaft 102a is rotated to the first position, and the fixing plate 103a is rotated by 90 degrees, so that two ends of the long side of the fixing plate 103a are abutted against the inner wall of the bottom plate 401, and the fixing of the jack box and the bus duct 400 is completed.
As shown in fig. 5, in this embodiment, the rotating shaft 102a is movably disposed on the box 300 along the axial direction thereof, the rotating shaft 102a is sleeved with a compression spring 102b, two ends of the compression spring are respectively abutted against the inner wall of the box 300 and the side wall of the cam 202b-1 on the rotating shaft 102a, and the compression spring 102b applies a force to the rotating shaft 102a moving in a direction away from the bus duct 400, so that the fixing plate 103a is closely attached to the bus duct 400. The handle is arranged on the rotating shaft 102a in a holding manner, when the position of the fixing plate 103a needs to be adjusted, the handle needs to be pushed upwards, the fixing plate 103a moves upwards for a certain distance, when the fixing plate 103a adjusts the preset position, the handle is released, and the elastic force generated by the compression spring 102b clings the fixing plate 103a to the inner wall of the bottom plate 401 of the bus duct 400, so that connection is more stable.
As shown in fig. 3, the micro switch 201b in the present embodiment is fixedly disposed near the rotating shaft 102a and electrically connected to the circuit breaker 201a, when the button 201b-1 of the micro switch 201b is pressed, the circuit breaker 201a trips to cut off the circuit in the box 300, so that the jack box is electrically disconnected from the bus duct 400, ensuring that the jack box is in a power-off state when being detached from the bus duct 400, and improving the operation safety.
In this embodiment, an anti-error warning device 600 is also provided. When the rotating shaft 102a does not rotate to the first position completely, the anti-error warning device 600 will remind the operator, so as to ensure the stability of the connection. As shown in fig. 5 and 7, the anti-false alarm device 600 includes a cover 601 covering the exterior of the circuit breaker 201a, and a locking mechanism 602 disposed between the rotating shaft 102a and the cover 601, wherein the cover 601 can completely cover the circuit breaker 201a only when the rotating shaft 102a is in the first position, and drives the locking mechanism 602 to lock the rotating shaft 102a.
Specifically, as shown in fig. 5 and 7, the upper part of the mask 601 in this embodiment is hinged to the panel of the case 300, and when the mask 601 is completely closed, the padlock holes (not shown) on the mask 601 can be overlapped with the padlock holes (not shown) on the panel of the case 300, so that the padlock can be performed. Locking mechanism 602 includes a locking pin 602a and a pin hole 602b mated therewith. The lock pin 602a is provided in the housing 300 by a mounting bracket 602d, the axial direction is along the radial direction of the rotation shaft 102a, and is movable on the mounting bracket 602d in the axial direction. The locking pin 602a is sleeved with a return spring 602c, two ends of the return spring 602c are respectively abutted against the mounting frame 602d and the support arm perpendicular to the axial direction, a force moving away from the rotating shaft 102a is applied to the locking pin 602a, and in a natural state, one end of the locking pin 602a away from the rotating shaft 102a penetrates through the through hole 601a in the panel of the box 300. The pin hole 602b is formed in the shaft 102a along a radial direction of the shaft 102a, and when the shaft 102a is located at the first position, the pin hole 602b faces the locking pin 602a. When the cover 601 is closed, the locking pin 602a is pushed into the pin hole 602b, so that the rotating shaft 102a cannot rotate, and the rotating shaft 102a is kept at the first position, so that the position accuracy of the fixing plate 103a is ensured. If the rotating shaft 102a does not rotate in place, the pin holes 602b are not aligned with the locking pins 602a, and then the cover 601 cannot push the locking pins 602a into the pin holes 602b in the closing process, the cover 601 cannot be completely closed, so that an operator can be reminded that the fixing plate 103a on the jack box is not rotated to the correct fixing position, and the effect of error warning prevention is achieved.
The position of the rotating shaft 102a is displayed by using the closing state of the face shield 601, so that an operator can intuitively judge whether the rotating shaft 102a rotates in place, and the stability of connection between the jack box and the bus duct 400 is ensured. When the cover 601 can be closed, the locking pin 602a enters the pin hole 602b on the rotating shaft 102a to lock the rotating shaft 102a, so that misoperation of the rotating shaft 102a caused by random rotation when the circuit breaker 201a is closed can be effectively prevented.
In order to make it easier for an operator to determine whether the rotating shaft 102a rotates in place, a limiting mechanism 500 for limiting the rotation angle of the rotating shaft 102a is further disposed in the box 300 in the embodiment, as shown in fig. 8, and includes a first limiting member 501 and a second limiting member 502, a limiting pin 102c is disposed on the rotating shaft along a radial direction, and when the limiting pin 102c abuts against the first limiting member 501 and the second limiting member 502, the rotating shaft is located at a first position and a second position, respectively.
Specifically, as shown in fig. 8, the first limiting member 501 and the second limiting member 502 are two end side walls of a fan-shaped groove formed on the base of the limiting mechanism, the fan-shaped groove is symmetrically formed on the base, and a 90-degree rotation space is reserved for the limiting pin 102 c. The base is provided with a first limit groove 503 and a second limit groove 504 at positions adjacent to the first limit piece 501 and the second limit piece 502, and after the limit pin 102c reaches the first position or the second position, the base enters the first limit groove 503 or the second limit groove 504, so that the limit pin 102c can be prevented from rotating again. When the rotating shaft 102a is rotated, the rotating shaft 102a needs to be pushed upwards (in the direction indicated by D in the figure) to move the limiting pin 102c out of the first limiting groove 503 or the second limiting groove 504, so that the rotating shaft can rotate. The use of two stop members and two stop slots prevents the shaft 102a from over-rotating such that the trigger structure 202 fails.
The process of installing the jack box in the present embodiment in the bus duct 400 is as follows:
opening the cover 601 and adjusting the circuit breaker 201a to the open state;
inserting the plug wire seat into the bus duct 400 to be connected with the bus, and simultaneously rotating the rotating shaft 102a to a second position, wherein the long side of the fixing plate 103a is parallel to the opening 402 of the bus duct 400, so that the fixing plate 103a can enter the bus duct 400;
pushing the handle upwards, rotating the rotating shaft 102a to the first position, rotating the fixed plate 103a by 90 degrees, and releasing the handle, so that the two ends of the long side of the fixed plate 103a are abutted against the inner wall of the bottom plate 401 of the bus duct 400;
adjusting the circuit breaker 201a to a circuit communicating state to connect the circuit in the case 300;
closing the face shield 601, enabling the face shield 601 to be completely closed, enabling padlock holes on the face shield 601 to coincide with padlock holes on a panel of the box 300, performing padlock operation, if the face shield 601 cannot be completely closed, rotating the handle again, adjusting the position of the fixing plate 103a until the face shield 601 can be closed, and performing padlock operation;
to this end, the connection of the jack box with the bus duct 400 is completed.
The separation process of the jack box and the bus duct 400 in this embodiment is as follows:
removing the padlock between the face shield 601 and the case 300, and opening the face shield 601;
adjusting the circuit breaker 201a to a broken state;
pushing the handle upward, rotating the shaft 102a to the second position until the jack box can be separated from the bus duct 400;
to this end, the separation of the jack box from the bus duct 400 is completed.
As an alternative embodiment, the fixing plate 103a in this embodiment may be elliptical, or may be non-circular such as elongated, and is not particularly limited.
As an alternative implementation, the micro switch 201b in this embodiment may be replaced by an automatically resettable switch such as a push button switch, and when the rotating shaft 102a rotates to the second position, the push button switch is driven to trigger the circuit breaker 201a to power off.
As an alternative embodiment, the error warning device 600 may not be provided in this embodiment.
Example 4
The present embodiment provides an jack box, the structure of which is substantially the same as that of the jack box in embodiment 3, except that, as shown in fig. 9, a limiting mechanism is not provided on the rotating shaft 102a in this embodiment, the rotating shaft 102a can freely rotate 360 degrees, corresponding pin holes 602b are through holes penetrating through the rotating shaft 102a, and the cam 202b-1 of the triggering structure is a symmetrical cam. When the axial direction of the pin hole 602b coincides with the axial direction of the lock pin 602a, the rotation shaft 102a is in the first position; after rotating 90 degrees clockwise or counterclockwise from the first position, the shaft 102a is in the second position. Thereby simplifying the structure inside the jack box and reducing the cost.
It is important to note that the construction and arrangement of the application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present application. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present applications. Therefore, the application is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Furthermore, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the application, or those not associated with practicing the application).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.
It should be noted that the above embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present application may be modified or substituted without departing from the spirit and scope of the technical solution of the present application, which is intended to be covered in the scope of the claims of the present application.
Claims (8)
1. An anti-misoperation system is characterized by comprising,
a spindle device (100) comprising a holding end (101), a connecting end (102) and a blocking end (103), a rotation force being applied from the holding end (101) to the blocking end (103) such that the spindle device (100) rotates between a first position and a second position;
a protection device (200) which is connected with the working circuit, is arranged on one side of the rotating shaft device (100) in a linkage way with the connecting end (102), and has a first state allowing the working circuit to be communicated and a second state disconnecting the working circuit;
when the rotating shaft device (100) rotates from the first position to the second position, the protection device (200) is triggered to switch from a first state to a second state;
the protection device (200) comprises a protective device,
a circuit breaking module (201) connected with the working circuit and used for controlling the communicable state of the working circuit;
a trigger structure (202) connected to the circuit breaking module and connected to the connection end (102) of the rotating shaft device (100), wherein the circuit breaking module (201) is triggered to switch from the first state to the second state by a driving force generated when the rotating shaft device (100) rotates from the first position to the second position;
the circuit breaking module (201) comprises,
a circuit breaker (201 a) connected to the working circuit for controlling the on-off state of the working circuit;
a protection circuit electrically connected to the circuit breaker (201 a) and to the trigger structure (202); the trigger structure (202) controls the on-off state of the protection circuit, and when the protection circuit is communicated, the circuit breaker (201 a) trips, so that the protection device (200) is switched from the first state to the second state;
the misoperation prevention system is arranged in a box body (300) of the plug-in box, and a connecting end (102) of the rotating shaft device (100) is a rotating shaft (102 a) penetrating through the box body (300);
when the rotating shaft (102 a) is not completely rotated to the first position, the error warning device (600) reminds an operator to ensure the stability of connection,
the error warning device (600) comprises a mask (601) covered outside the circuit breaker (201 a), and a locking mechanism (602) arranged between the rotating shaft (102 a) and the mask (601); -the cover (601) is able to completely cover the circuit breaker (201 a) only when the shaft (102 a) is in the first position, and to actuate the locking mechanism (602) to lock the shaft (102 a);
the locking mechanism (602) includes,
a locking pin (602 a) movably arranged on the mounting frame (602 d) along the radial direction of the rotating shaft (102 a),
a pin hole (602 b) radially formed in the rotating shaft (102 a), wherein when the rotating shaft (102 a) is at the first position, the pin hole (602 b) is aligned with the locking pin (602 a);
a return spring (602 c) is sleeved on the locking pin (602 a), and a force for moving the locking pin (602 a) in a direction away from the rotating shaft (102 a) is applied;
one end of the locking pin (602 a) far away from the rotating shaft (102 a) protrudes out of the panel of the box body (300) towards the face shield (601); -pushing the locking pin (602 a) into the pin hole (602 b) when the cover (601) is closed; when the face shield (601) is opened, the return spring (602 c) drives the locking pin (602 a) out of the pin hole (602 b).
2. The anti-misoperation system of claim 1 characterized in that the protection circuit comprises a micro switch (201 b) connected to the triggering structure (202), the micro switch (201 b) being electrically connected to the circuit breaker (201 a); the triggering structure (202) controls the opening and closing states of the micro switch (201 b) through the driving force generated by the rotating shaft device (100); when a button (201 b-1) of the micro switch (201 b) is pressed by the trigger structure (202), the circuit breaker (201 a) opens the operating circuit.
3. The anti-misoperation system according to claim 2, characterized in that the triggering structure (202) comprises,
an elastic pressing piece (202 a) fixedly arranged above the micro switch (201 b) and separated from the button (201 b-1) in a natural state;
the trigger piece (202 b) is arranged on the connecting end (102) of the rotating shaft device (100), and when the rotating shaft device (100) rotates to the second position, the trigger piece (202 b) drives the elastic pressing piece (202 a) to press a button (201 b-1) on the micro switch (201 b).
4. A system according to claim 3, wherein the trigger (202 b) is a cam (202 b-1) radially arranged on the connection end (102), the cam (202 b-1) rotating with the shaft (102 a) to depress the resilient tab (202 a) when the shaft means (100) is in the second position; when the rotating shaft device (100) is in the first position, the cam (202 b-1) enables the elastic pressing piece (202 a) to restore to a natural state.
5. A jack box, characterized by comprising the anti-misoperation system of any one of claims 1-4, wherein a box body (300) is detachably connected to a bus duct (400) through a blocking end (103) of the rotating shaft device (100), and the working circuit and the anti-misoperation system are arranged inside; when the blocking end (103) is fixedly connected with the bus duct (400), the rotating shaft device (100) is positioned at the first position; when the blocking end (103) is separated from the bus duct (400), the spindle device (100) is in the second position.
6. The jack box of claim 5, wherein the connecting end (102) is a rotating shaft (102 a) movably arranged on the box body (300) along the axial direction of the connecting end, a compression spring (102 b) is sleeved on the rotating shaft (102 a), two ends of the compression spring are respectively abutted against the inner wall of the box body (300) and a boss on the rotating shaft (102 a), and the compression spring (102 b) applies a force for the rotating shaft (102 a) to move in a direction away from the bus duct (400) so that the blocking end (103) is tightly attached to the bus duct (400).
7. The jack box of claim 6, wherein the blocking end (103) is a fixed plate (103 a) fixedly connected to the rotating shaft (102 a) near one end of the bus duct (400), the fixed plate (103 a) is suitable for being clamped in an opening (402) of the bus duct (400), the maximum length of the fixed plate (103 a) is larger than the width of the opening (402) of the bus duct (400), and the minimum length of the fixed plate (103 a) is smaller than the width of the opening (402) of the bus duct (400).
8. The jack box of claim 7, wherein the box body (300) is provided with a limiting mechanism (500) for limiting the rotation angle of the rotating shaft (102 a), the limiting mechanism comprises a first limiting piece (501) and a second limiting piece (502), and when a stop block (503) arranged on the rotating shaft (102 a) is respectively abutted against the first limiting piece (501) and the second limiting piece (502), the rotating shaft (102 a) is respectively located at the first position and the second position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910166118.4A CN109712832B (en) | 2019-03-06 | 2019-03-06 | Misoperation prevention system and plug box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910166118.4A CN109712832B (en) | 2019-03-06 | 2019-03-06 | Misoperation prevention system and plug box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109712832A CN109712832A (en) | 2019-05-03 |
| CN109712832B true CN109712832B (en) | 2023-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910166118.4A Active CN109712832B (en) | 2019-03-06 | 2019-03-06 | Misoperation prevention system and plug box |
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| Country | Link |
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| CN (1) | CN109712832B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110649472B (en) * | 2019-10-08 | 2021-03-16 | 国网黑龙江省电力有限公司鹤岗供电公司 | Transformer substation secondary circuit rapid switching protection pressing plate |
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| DE10144106C1 (en) * | 2001-09-03 | 2003-01-30 | Siemens Ag | Electrical power switch has releasable coupling between switch contact device and switch operating drive |
| DE102007040163A1 (en) * | 2007-08-21 | 2009-02-26 | Siemens Ag | Switching device with a switching shaft for mounting a rotary contact bridge and multi-pole switching device arrangement |
| KR101087511B1 (en) * | 2009-05-21 | 2011-11-29 | 엘에스산전 주식회사 | Interlock apparatus for circuit breaker |
| KR102299858B1 (en) * | 2017-03-15 | 2021-09-08 | 엘에스일렉트릭 (주) | Magnetic trip mechanism for circuit breaker |
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| CN106449325A (en) * | 2016-08-29 | 2017-02-22 | 苏州未来电器股份有限公司 | Multi-phase linkage circuit breaker and power supply switching apparatus |
| CN206148890U (en) * | 2016-11-02 | 2017-05-03 | 广东昊宇电气自动化设备有限公司 | Area interlocking jack box that bus duct was used |
| CN107623296A (en) * | 2017-08-30 | 2018-01-23 | 扬中市扬子铝加工有限公司 | A kind of busway inserting case |
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| CN109712832A (en) | 2019-05-03 |
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