CN210073655U - Prevent maloperation system and jack box - Google Patents

Abstract

The utility model discloses a prevent mistake operating system, including pivot device and protection device, the pivot device has to hold puts end, link and separation end, and the separation end is used for establishing to be connected with external device, through holding to put the end and apply the revolving force, changes pivot device's position, and then changes the relation of connection of separation end and external device. The protective device connected with the working circuit establishes linkage relation with the connecting end of the rotating shaft device, so that the effect of switching the state of the protective device by changing the position of the rotating shaft device is realized, and the switching of the off state of the working circuit and the operation of the rotating shaft device are synchronously performed. When the illegal operation occurs, the working circuit can be passively disconnected based on the illegal operation behavior, and the safety of the working process is guaranteed.

Description

Prevent maloperation system and jack box

Technical Field

The utility model relates to a power transmission technical field, concretely relates to prevent mistake operating system and jack box.

Background

With the emergence of modern engineering facilities and equipment, the power consumption of various industries is increased rapidly, particularly, the appearance of numerous high-rise buildings and large-scale factory workshops, the traditional cable serving as a power transmission lead cannot meet the requirement in a large-current transmission system, and the parallel connection of multiple cables brings inconvenience to on-site installation, construction and connection. The plug-in type bus duct is produced as a novel distribution wire, compared with the traditional cable, the bus duct fully embodies the superiority of the novel bus duct in large current transmission, simultaneously, because of adopting a new technology and a new process, the contact resistance and the temperature rise of the joint of two end parts of the bus duct and the plug-in part of the branching port are greatly reduced, and high-quality insulating materials are used in the bus duct, thereby improving the safety and reliability of the bus duct and improving the whole system.

The existing bus duct is a strip-shaped cavity with an opening on 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 into a whole, and the length of the opening is consistent with that of the bus duct. The jack box is installed on the bottom plate of the bus duct, a protruding wiring seat is arranged at the top of the jack box body, and the wiring seat enters the bus duct and is connected with the bus after installation. The top of the box body of the jack box is provided with a fixing structure which is detachably connected with a bus duct bottom plate, bolts are usually adopted for connection and fixation, and a plurality of hole sites need to be arranged on the bus duct bottom plate, so that the jack box is not simple, convenient and quick to disassemble and assemble, and the installation position of the jack box is limited to a certain extent.

In order to solve the inconvenient problem of grafting box dismouting in prior art, current a neotype grafting box fixed establishment, knob, connecting rod and stationary blade, the connecting rod runs through the grafting 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 below in the bus duct through rotating the knob, has realized that arbitrary non-connector position of grafting box on the bus duct carries out quick assembly disassembly, and the structure is also comparatively simple. However, the above-mentioned jack box fixing mechanism has no linkage relation with the circuit in the jack box, in other words, when the jack box is communicated with the bus duct circuit, the jack box can be easily separated from the bus duct by operating the knob connecting rod, and the circuit always keeps the access state, so that the live operation phenomenon which should be avoided in the line construction is generated, and there is a serious potential safety hazard.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the jack box that adopts rotatory fixed mode to be connected with the bus duct among the prior art and can not standardize the operation and produce the defect of hot plug when dismantling to a prevent mistake operating system and the jack box that has it that can be when dismantling auto-power-off is provided.

In order to solve the technical problem, the utility model provides a following technical scheme:

an anti-misoperation system comprises a control unit,

the rotating shaft device comprises a holding end, a connecting end and a blocking end, and rotary power 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 linkage with the connecting end, and has a first state for allowing the working circuit to be communicated and a second state for disconnecting the working circuit;

when the rotating shaft device rotates from the first position to the second position, the protection device is triggered to be switched from the first state to the second state.

As a preferable solution of the anti-misoperation system of the present invention, the protection device comprises,

the circuit breaking module is connected with the working circuit and used for controlling the communication 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 circuit breaking module is triggered to be switched from the first state to the second state by the driving force generated when the rotating shaft device rotates from the first position to the second position.

As a preferred scheme of the anti-misoperation system, the circuit breaking module comprises

The circuit breaker is connected to the working circuit and controls the on-off state of the working circuit;

the protection circuit is electrically connected with the circuit breaker and is connected with the triggering structure; the trigger structure controls the on-off state of the protection circuit, and when the protection circuit is communicated, the circuit breaker trips to enable the protection device to be switched from the first state to the second state.

As a preferred scheme of the anti-misoperation system of the present invention, the protection circuit includes a micro switch connected to the trigger structure, and the micro switch is electrically connected to the circuit breaker; the trigger structure controls the on-off state of the microswitch through the driving force generated by the rotating shaft device; the circuit breaker breaks the operating circuit when a button of the microswitch is depressed by the trigger structure.

As the utility model discloses a prevent preferred scheme of maloperation system, trigger structure includes

The elastic pressing sheet is fixedly arranged above the microswitch and is separated from the button in a natural state;

and 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 the button on the microswitch.

As a preferable embodiment of the anti-misoperation system of the present invention, the triggering member is a cam radially disposed on the connecting end, and when the rotating shaft device is located at the second position, the cam rotates along with the rotating shaft to press down the elastic pressing sheet; when the rotating shaft device is in the first position, the cam enables the elastic pressing sheet to restore to the natural state.

The utility model also provides a jack box, which comprises the anti-misoperation system, wherein the box body of the jack box is detachably connected to the bus duct through the separation end of the rotating shaft device, and the working circuit and the anti-misoperation system are arranged inside the jack box; when the blocking end is fixedly connected with the bus duct, the rotating shaft device is located at the first position; when the blocking end is separated from the bus duct, the rotating shaft device is in the second position.

As an optimal selection scheme of jack box, the link is for being in along its axial movably pivot on the box, the cover is equipped with compression spring in the pivot, its both ends respectively in the box inner wall with the epaxial boss butt of commentaries on classics, compression spring is right the pivot is applyed to keeping away from the power of bus duct direction motion makes the separation end with the bus duct closely laminates.

As an optimal selection scheme of jack box, the separation end be fixed connection in the pivot is close to the fixed plate of bus duct one end, the fixed plate is suitable for the joint to be in the opening of bus duct, the maximum length of fixed plate is greater than bus duct open-ended width, the minimum length of fixed plate is less than bus duct open-ended width.

As an optimized scheme of jack box, be equipped with on the box and be used for the restriction pivot turned angle's stop gear, including first locating part and second locating part, when locating epaxial spacer pin respectively with first locating part with during the second locating part looks butt, the pivot is in respectively first position with the second position.

As a preferred scheme of the jack box of the utility model, the jack box further comprises an anti-misoperation warning device, which comprises a face shield covering the outside of the circuit breaker and a locking mechanism arranged between the rotating shaft and the face shield; only when the rotating shaft is in the first position, the face shield can completely cover the circuit breaker and drive the locking mechanism to lock the rotating shaft.

As a preferable solution of the jack box of the present invention, the locking mechanism includes,

the locking pin is movably arranged on the mounting rack along the radial direction of the rotating shaft,

the pin hole is arranged on the rotating shaft along the radial direction, and when the rotating shaft is positioned at the first position, the pin hole is aligned with the locking pin;

a return spring is sleeved on the locking pin and applies a force moving in the direction far away from the rotating shaft 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 and faces the mask; pushing the locking pin into the pin aperture when the mask is closed; when the face shield is opened, the return spring drives the locking pin to move out of the pin hole.

The utility model has the advantages that:

1. the utility model provides a prevent mistake operating system, including pivot device and protection device, the pivot device has to hold puts end, link and separation end, and the separation end is used for establishing to be connected with external device, through holding to put the end and apply the revolving force, changes the position of pivot device, and then changes the connection relation of separation end and external device. The protective device connected with the working circuit establishes linkage relation with the connecting end of the rotating shaft device, so that the effect of switching the state of the protective device by changing the position of the rotating shaft device is realized, and the switching of the off state of the working circuit and the operation of the rotating shaft device are 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. The utility model provides a jack box is equipped with and has prevented mistake warning device, has adopted the locking round pin matched with mode that the cover was located in outside face guard of circuit breaker and the locking mechanism, utilizes the closed state of face guard to show the position of pivot for whether operating personnel can audio-visual judgement pivot rotate to the position, guaranteed the stability that jack box and bus duct are connected. When the face guard can be closed, the locking round pin gets into in the epaxial pinhole of pivot, produces locking effect to the pivot, and the pivot is rotated at will and is produced the maloperation when can effectively preventing the circuit breaker combined floodgate.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein:

fig. 1 is a schematic structural diagram of an anti-misoperation system in embodiment 1;

fig. 2 is a schematic structural diagram of an anti-misoperation system in embodiment 2;

FIG. 3 is a schematic view of the spindle device in the first position according to the embodiment 2 and the embodiment 3;

FIG. 4 is a schematic view showing the rotating shaft device in a second position in embodiment 2;

fig. 5 is a schematic perspective view of the jack box of embodiment 2 and embodiment 3;

fig. 6 is a schematic structural view of connection between the jack box and the bus duct in embodiment 3;

fig. 7 is a schematic structural view of the error warning device in embodiment 3;

FIG. 8 is a schematic structural view of a stopper mechanism according to embodiment 3;

fig. 9 is a schematic structural diagram of the error warning device in embodiment 4.

Description of the reference numerals

100. A rotating shaft device; 101. a holding end, 102, a connecting end, 103 and a blocking end; 102a, a rotating shaft; 102b, a compression spring; 102 c-a spacing pin; 103a, a fixing plate; 200. a protection device; 201. a circuit breaking module; 201a, a circuit breaker; 201b, a microswitch; 202. a trigger structure; 202a, elastic pressing sheets; 202b, a trigger; 201b-1, a button; 202b-1, cam; 300. a box body; 301. a wire holder; 400. a bus duct; 401. a base plate; 402. an opening; 500. a limiting mechanism; 501. a first limit piece; 502. a second limiting member; 503. a first limit groove; 504-a second restraint slot; 600. an anti-error warning device; 601. a face mask; 602. A locking mechanism; 601a, a through hole; 602a, a locking pin; 602b, pin holes; 602c, a return spring; 602d, mounting.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying the present invention are described in detail below with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the invention. 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 embodiment provides an anti-misoperation system, which is structurally shown in fig. 1 and 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 the first position and the 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 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 to the working circuit, is linked with the connecting end of the rotating shaft device, has a first state allowing the working circuit to be connected 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 rotation shaft device 100 and the working circuit, and when the holding end 101 of the rotation shaft device 1010 rotates the rotation shaft device 100 to the second position, the protection device 200 automatically switches to the second state to cut off the working circuit, thereby achieving the effect of switching the state of the protection device 200 by changing the position of the rotation shaft device 100, and enabling the switching of the off state of the working circuit and the operation of the rotation shaft device 100 to be performed synchronously. 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 embodiment provides an anti-misoperation system, which 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, 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 rotating force to the holding end 101, so that the connection relation between the blocking end 103 and the external device is changed. The protection device 200 establishes a linkage relationship between the connection end 102 of the rotation shaft device 100 and the working 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 off-state switching of the working 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, the connecting end 102 of the rotating shaft device 100 is a rotating shaft 102a penetrating through the box 300, and the holding end 101 and the blocking end 103 are respectively disposed at two ends of the rotating shaft 102a and located outside the box 300. The protection device 200 is disposed in the case 300, located at one side of the rotation shaft 102a, and connected to the working circuit. When the blocking end 103 is fixedly connected with an external device, so that the box body 300 and the external device are integrated, the rotating shaft 102a is in a first position; when the connection relationship of the blocking end 103 with 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 communicated, the rotating shaft device 100 is directly rotated to separate the box body 300 from an external device, so that the danger of live operation is easily generated, and the illegal operation is easily caused. Therefore, the anti-misoperation system can automatically cut off the circuit in the box body 300 when the box body 300 is removed in a charged manner, and the danger of illegal operation is eliminated.

The protection device 200 in this embodiment includes a disconnection module 201 and a trigger structure 202, the disconnection module 201 controls a connectable state of the working circuit, and has a first state allowing the working circuit to be connected and a second state disconnecting the working circuit, when the rotating shaft device 100 rotates from the first position to the second position, the trigger structure 202 is driven to trigger the disconnection module 201 to switch from the first state to the second state, so that the working circuit cannot be connected, and a risk possibly brought by an erroneous operation is eliminated. The trigger structure 202 is arranged between the connecting end 102 and the disconnection module 201, and converts the driving force generated by the position change of the rotating shaft device 100 into the condition for triggering the state change of the disconnection module 201, so that the behavior of the illegal operation of the rotating shaft device 100 becomes the trigger condition for disconnecting the working circuit, and the function of preventing the misoperation is realized.

The circuit breaking module 201 in this embodiment includes a circuit breaker 201a and a protection circuit, and the circuit breaker 201a is connected to the working circuit and controls the on/off state of the working circuit. The protection circuit is electrically connected with the circuit breaker 201a, and when the protection circuit is connected, the circuit breaker 201a is triggered to trip open the working circuit.

Specifically, as shown in fig. 2, the protection circuit in this embodiment has a micro switch 201b, which is disposed near the rotating shaft 102a and electrically connected to the circuit breaker 201a, and when a button 201b-1 on the micro switch 201b is pressed, the protection circuit is connected to trigger the circuit breaker 201a to trip and cut off the working circuit in the box 300, so as to ensure that the jack box and the external device are in a power-off state, thereby improving the operation safety.

As shown in fig. 2 and 3, the trigger structure 202 is connected between the rotating shaft 102a and the micro switch 201b, the trigger structure 202 is composed of an elastic pressing piece 202a and a trigger piece 202b, the elastic pressing piece 202a is arranged above the button 201b-1 of the micro switch 201b, one side of the elastic pressing piece is fixed on the micro switch 201b, and the micro switch end tilts up on the micro switch 201b in a natural state and is separated from the button 201 b-1. The triggering member 202b is a cam 202b-1 fixedly disposed on the rotating shaft 102a, and the cam 202b-1 rotates with the rotating shaft 102 a. As shown in fig. 3, when the rotating shaft 102a is located at the first position, the cam 202b-1 is located to make the elastic pressing piece 202a in a natural state, the button 201b-1 of the microswitch 201b is not pressed, and the circuit breaker 201a can close and connect the working circuit in the box 300. As shown in fig. 4, when the rotating 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 working circuit in the box 300.

By utilizing the characteristic that the radius of the cam 202b-1 can be changed when the cam is rotated, the elastic pressing piece 202a is respectively released and pressed down at the first position and the second position, so that the function that the microswitch 201b triggers the tripping operation of the circuit breaker 201a when the rotating shaft 102a is at the second position, namely the jack box can be detached, is realized, and the safety of operators is ensured. When the rotating shaft 102a is in the first position, the micro switch 201b is not triggered, so that the circuit breaker 201a can normally realize closing.

Example 3

The embodiment provides a jack box, the structure of which is shown in fig. 5, an anti-misoperation system and a working circuit in embodiment 2 are arranged in a box body 300, and a circuit breaker 201a in the anti-misoperation system controls the on-off state of the working circuit in the box body 300. As shown in fig. 5 and 6, a 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 power supply and intelligent detection are realized. The blocking end 103 of the rotating shaft device 100 can enter the bus duct 400 and be clamped with the bus duct 400, so that the box body 300 and the bus duct 400 are connected into a whole. The direction of the blocking end 103 on the rotating shaft 102a is changed by applying a rotating force to the holding end 101 of the rotating shaft device 100, so that the quick assembly and disassembly of the box body 300 and the bus duct 400 are realized. When the box body 300 can be fixedly connected with the bus duct 400, the rotating shaft device 100 is in a first position; when the box 300 can be separated from the bus duct 400, the spindle device 100 is in the second position.

The anti-misoperation system establishes a linkage relation between the breaker 201a and the rotating shaft 102a, and when the rotating shaft 102a rotates to a second position where the box body 300 is separated from the bus duct 400, the anti-misoperation system triggers the breaker 201a to cut off a working circuit in the box body 300. The anti-misoperation system triggers the protection circuit to be communicated by utilizing the driving force generated by the rotation of the rotating shaft 102a, so that the working circuit is cut off passively when the rotating shaft 102a rotates by the breaker 201a, and even if an operator forgets to close the breaker 201a and directly detach the jack box, the working circuit in the box body 300 can be ensured to be in a cut-off state, the hot plugging operation is avoided, and the construction safety is improved.

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 rotary fixing structure. The blocking end 103 in this embodiment is a fixing plate 103a, which is rectangular, 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 located 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 the two ends of the long side of the fixing plate 103a are abutted to 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, the rotating shaft 102a in this embodiment is movably disposed on the box 300 along the axial direction thereof, the rotating shaft 102a is sleeved with a pressing spring 102b, two ends of the pressing spring 102b 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 pressing 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 tightly attached to the bus duct 400. The handle is arranged on the rotating shaft 102a in a supporting mode, when the position of the fixing plate 103a needs to be adjusted, the handle needs to be pushed upwards first, 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 fixing plate 103a is tightly attached to the inner wall of the bottom plate 401 of the bus duct 400 through elastic force generated by the pressing spring 102b, so that connection is more stable.

As shown in fig. 3, the microswitch 201b in this embodiment is fixedly arranged near the rotating shaft 102a and electrically connected with the breaker 201a, and when the button 201b-1 of the microswitch 201b is pressed, the breaker 201a trips to cut off a circuit in the box body 300, so that the jack box is electrically disconnected from the bus duct 400, and the jack box is ensured to be in a power-off state when being detached from the bus duct 400, thereby improving the operation safety.

In this embodiment, an anti-error warning device 600 is further provided. When the rotating shaft 102a is not completely rotated to the first position, the error-preventing warning device 600 will remind the operator, so as to ensure the stability of the connection. As shown in fig. 5 and 7, the error warning 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 the locking mechanism 602 is driven to lock the rotating shaft 102 a.

Specifically, as shown in fig. 5 and 7, the upper portion of the mask 601 in this embodiment is hinged to the panel of the box 300, and when the mask 601 is completely closed, the padlock hole (not shown) on the mask 601 can coincide with the padlock hole (not shown) on the panel of the box 300, so as to lock the padlock. The locking mechanism 602 includes a locking pin 602a and a pin hole 602b engaged therewith. The lock pin 602a is disposed in the case 300 through the mounting bracket 602d, and the axial direction is along the radial direction of the rotation shaft 102a, and is movable on the mounting bracket 602d along the axial direction. The locking pin 602a is sleeved with a return spring 602c, two ends of the return spring 602c are respectively abutted to the mounting frame 602d and the support arm perpendicular to the axial direction, a force moving in the direction 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 rotating shaft 102a along a radial direction of the rotating shaft 102a, and when the rotating shaft 102a is located at the first position, the pin hole 602b faces the locking pin 602 a. When the face mask 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, thereby ensuring the position correctness of the fixing plate 103 a. If the rotating shaft 102a does not rotate in place, the pin hole 602b is not aligned with the locking pin 602a, the locking pin 602a cannot be pushed into the pin hole 602b in the closing process of the mask 601, and the mask 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 a correct fixed position, and the function of preventing false alarm is realized.

The position of the rotating shaft 102a is displayed by utilizing 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 of the jack box and the bus duct 400 is ensured. When the mask 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 caused by random rotation of the rotating shaft 102a when the breaker 201a is closed can be effectively prevented.

In order to enable an operator to determine whether the rotating shaft 102a rotates in place more conveniently, the box 300 in this embodiment further includes a limiting mechanism 500 for limiting a rotating angle of the rotating shaft 102a, as shown in fig. 8, including a first limiting member 501 and a second limiting member 502, the rotating shaft is radially provided with a limiting pin 102c, 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 side walls of a fan-shaped groove formed on the base of the limiting mechanism, and the fan-shaped groove is symmetrically formed on the base, and a 90-degree rotation space is left for the limiting pin 102 c. The base is formed with a first limiting groove 503 and a second limiting groove 504 at positions adjacent to the first limiting member 501 and the second limiting member 502, and the limiting pin 102c enters the first limiting groove 503 or the second limiting groove 504 after reaching the first position or the second position, so that the limiting pin 102c can be prevented from rotating again. When the rotating shaft 102a is rotated, the rotating shaft 102a needs to be pushed upward (direction indicated by D in the figure) to move the stopper pin 102c out of the first stopper groove 503 or the second stopper groove 504, so as to rotate. The two limiting members and the two limiting grooves can prevent the rotating shaft 102a from rotating excessively to disable the triggering mechanism 202.

The process of installing the jack box in this embodiment in the bus duct 400 is as follows:

opening the mask 601 to adjust the breaker 201a to the open state;

inserting the plug wire seat into the bus duct 400 to be connected with the bus, rotating the rotating shaft 102a to a second position, and enabling the long edge of the fixing plate 103a to be parallel to the direction of the opening 402 of the bus duct 400, so that the fixing plate 103a can enter the bus duct 400;

pushing the handle upwards to rotate the rotating shaft 102a to the first position, rotating the fixing plate 103a by 90 degrees, and releasing the handle to enable two ends of the long edge of the fixing plate 103a to be abutted against the inner wall of the bottom plate 401 of the bus duct 400;

adjusting the circuit breaker 201a to a circuit communication state, and connecting a circuit in the box body 300;

closing the face mask 601 to enable the face mask 601 to be completely closed and enable padlock holes in the face mask 601 to be overlapped with padlock holes in the face plate of the box body 300, performing padlock operation, if the face mask 601 cannot be completely closed, rotating the handle again, adjusting the position of the fixing plate 103a until the face mask 601 can be closed, and then performing padlock operation;

so far, the connection of the jack box and the bus duct 400 is completed.

The separation process of the jack box and the bus duct 400 in the embodiment is as follows:

removing the padlock between the face cover 601 and the case body 300 and opening the face cover 601;

adjusting the circuit breaker 201a to a circuit breaking state;

pushing the handle upwards to rotate the rotating shaft 102a to the second position until the jack box can be separated from the bus duct 400;

so far, the separation of the jack box and the bus duct 400 is completed.

Alternatively, the fixing plate 103a in the present embodiment may have an elliptical shape, or may have a non-circular shape such as a long strip shape, and is not particularly limited herein.

As an alternative embodiment, the microswitch 201b in the present 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 breaker 201a to cut off the power.

As an alternative embodiment, the error warning device 600 may not be provided in this embodiment.

Example 4

This embodiment provides a jack box, which has a structure substantially the same as that of the jack box in embodiment 3, except that, as shown in fig. 9, the rotating shaft 102a in this embodiment is not provided with a limiting mechanism, the rotating shaft 102a can rotate freely in 360 degrees, correspondingly, the pin hole 602b is a through hole penetrating through the rotating shaft 102a, and the cam 202b-1 of the triggering mechanism is a symmetrical cam. When the axial direction of the pin hole 602b coincides with the axial direction of the lock pin 602a, the rotating shaft 102a is in the first position; after rotating 90 degrees clockwise or counterclockwise from the first position, the rotating 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 present 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., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited 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 this invention. 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 inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Moreover, 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 unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).

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, without undue experimentation.

It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims (12)

1. An anti-misoperation system is characterized by comprising,

the rotating shaft device (100) comprises a holding end (101), a connecting end (102) and a blocking end (103), and rotating force is applied to the blocking end (103) from the holding end (101) so that the rotating shaft device (100) rotates between a first position and a second position;

the protection device (200) is connected with a working circuit, is arranged on one side of the rotating shaft device (100) in linkage 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 be switched from the first state to the second state.

2. Anti-misoperation system according to claim 1, wherein the protection device (200) comprises,

a disconnection module (201) connected to the working circuit for controlling a connectable state of the working circuit;

and the triggering structure (202) is connected with the circuit breaking module (201) and the connecting end (102) of the rotating shaft device (100), and the circuit breaking module (201) is triggered to be switched from the first state to the second state by the driving force generated when the rotating shaft device (100) rotates from the first position to the second position.

3. Anti-misoperation system according to claim 2, wherein the disconnection module (201) comprises

The breaker (201a) is connected to the working circuit and controls the on-off state of the working circuit;

a protection circuit electrically connected to the circuit breaker (201a) and to the triggering structure (202); the trigger structure (202) controls the on-off state of the protection circuit, and when the protection circuit is connected, the circuit breaker (201a) trips to enable the protection device (200) to be switched from the first state to the second state.

4. A system for preventing incorrect operation according to claim 3, characterized in that the protection circuit comprises a microswitch (201b) connected to the triggering structure (202), the microswitch (201b) being electrically connected to the circuit breaker (201 a); the trigger structure (202) controls the on-off state of the microswitch (201b) through the driving force generated by the rotating shaft device (100); the circuit breaker (201a) opens the working circuit when a button (201b-1) of the microswitch (201b) is pressed by the trigger structure (202).

5. Anti-misoperation system according to claim 4, wherein the trigger structure (202) comprises

The elastic pressing sheet (202a) is fixedly arranged above the microswitch (201b) and is separated from the button (201b-1) in a natural state;

the trigger piece (202b) 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 (202b) drives the elastic pressing piece (202a) to press a button (201b-1) on the microswitch (201 b).

6. The misoperation prevention system according to claim 5, wherein the trigger (202b) is a cam (202b-1) radially disposed on the connecting end (102), and when the rotating shaft device (100) is in the second position, the cam (202b-1) rotates with the rotating shaft (102a) to press down the elastic pressing piece (202 a); when the rotating shaft device (100) is in the first position, the cam (202b-1) enables the elastic pressing sheet (202a) to restore to a natural state.

7. A jack box, comprising the misoperation prevention system of any one of claims 1 to 6, wherein a box body (300) of the jack box 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 misoperation prevention system are arranged inside the jack box; when the blocking end (103) is fixedly connected with the bus duct (400), the rotating shaft device (100) is in the first position; when the blocking end (103) is separated from the bus duct (400), the spindle device (100) is in the second position.

8. The jack box of claim 7, wherein the connecting end (102) is a rotating shaft (102a) movably arranged on the box body (300) along the axial direction of the connecting end, a pressing spring (102b) is sleeved on the rotating shaft (102a), two ends of the pressing spring are respectively abutted against the inner wall of the box body (300) and a boss on the rotating shaft (102a), and the pressing spring (102b) applies a force to the rotating shaft (102a) 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).

9. The jack box of claim 8, wherein the blocking end (103) is a fixing plate (103a) fixedly connected to one end of the rotating shaft (102a) close to the bus duct (400), the fixing plate (103a) is suitable for being clamped in an opening (402) of the bus duct (400), the maximum length of the fixing plate (103a) is larger than the width of the opening (402) of the bus duct (400), and the minimum length of the fixing plate (103a) is smaller than the width of the opening (402) of the bus duct (400).

10. The jack box of claim 9, wherein the box body (300) is provided with a limiting mechanism (500) for limiting a rotation angle of the rotating shaft (102a), the limiting mechanism comprises a first limiting member (501) and a second limiting member (502), and when a limiting pin (102c) arranged on the rotating shaft (102a) abuts against the first limiting member (501) and the second limiting member (502), the rotating shaft (102a) is located at the first position and the second position respectively.

11. The jack box of claim 10, further comprising an anti-misoperation device (600) including a cover (601) covering the exterior of the circuit breaker (201a) in the anti-misoperation system of claim 3, and a locking mechanism (602) disposed between the rotating shaft (102a) and the cover (601); the face shield (601) can completely cover the circuit breaker (201a) and drive the locking mechanism (602) to lock the rotating shaft (102a) only when the rotating shaft (102a) is in the first position.

12. A jack box according to claim 11, wherein the locking mechanism (602) comprises,

a locking pin (602a) movably arranged on the mounting frame (602d) along the radial direction of the rotating shaft (102a),

a pin hole (602b) radially opened on the rotating shaft (102a), wherein the pin hole (602b) is aligned with the locking pin (602a) when the rotating shaft (102a) is at the first position;

a return spring (602c) is sleeved on the locking pin (602a) and applies force to the locking pin (602a) to move in the direction away from the rotating shaft (102 a);

one end of the locking pin (602a), which is far away from the rotating shaft (102a), protrudes out of the panel of the box body (300) and faces the face mask (601); pushing the locking pin (602a) into the pin hole (602b) when the mask (601) is closed; when the face shield (601) is opened, the return spring (602c) drives the locking pin (602a) out of the pin hole (602 b).

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