CN211404434U - Safety locking mechanism of electric operating device - Google Patents

Abstract

The utility model discloses an electrically operated device's safe locking mechanical system, include: pressing structure and safety lock, pressing structure includes pivot, slide, lever, compression leg, be equipped with in the pivot and counterpoint the first arch that promotes the slide and remove, still be equipped with and counterpoint and block the second arch that the slider removed, the safety lock rotates and drives the pivot and rotate, works as when the safety lock is in the state of unblanking, first arch is counterpointed and is promoted the slide and remove, the slide promotes to shift up rather than the one end of the lever of contact, makes the other end of the lever that is fixed with the compression leg drive the compression leg and move down the press test switch, and the protruding counterpoint of second this moment blocks the slider and removes to closing a floodgate direction. The utility model discloses a by the press down structural design of safety lock control, press down the structure and have longer stroke of pressing, can ensure that test switch presses down and targets in place to can carry on spacingly to the slider when pushing down test switch and making the circuit breaker dropout, avoid the slider to remove to circuit breaker combined floodgate direction, improve the safety in utilization.

Description

Safety locking mechanism of electric operating device

Technical Field

The utility model relates to an electrically operated device field especially relates to an electrically operated device's safe locking mechanical system.

Background

At present, a low-voltage circuit breaker requires that the circuit breaker can automatically cut off a circuit and protect an electric appliance under the condition of abnormal working, so that an electric operating device needs to be additionally arranged to realize timely switching on and switching off operations.

The electric operating device is also provided with a pressing structure for pressing a test switch of the circuit breaker, the existing pressing structure generally adopts a screw thread pressing mode, the stroke is short, and safety accidents can be caused when the circuit breaker is not pressed in place; meanwhile, when the test switch is pressed, the existing pressing structure cannot limit the movement of a sliding block linked with the operating mechanism in the electric operating device, and when the test switch is pressed, the operating mechanism can be driven to act through a manual operation mode or a remote electric control operation mode, so that danger is easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides an electrically operated device's safe locking mechanical system, has the structure of pressing down of pushing down the stroke religion, can ensure that the push test switch targets in place to can carry on spacingly to the slider when pushing down the test switch and making the circuit breaker dropout, avoid the slider to move to circuit breaker combined floodgate direction, improve the safety in utilization.

In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a safe locking mechanical system of electrically operated device, set up in the side of the slider with the operating device linkage in the electrically operated device for push down the test switch on the circuit breaker and can lock the removal of slider, include: a press down structure and be used for control for pushing down circuit breaker test switch press down the safety lock of structure action, press down the structure and include pivot, slide, lever, compression leg, be equipped with in the pivot and to counterpoint the first arch that promotes the slide and remove, it is protruding to still be equipped with the second that can counterpoint and block the slider removal in the pivot, safety lock fixed connection is in the pivot, the safety lock rotates and drives the pivot and rotate, works as when the safety lock is in the state of unblanking, first arch counterpoints and promotes the slide and remove, the slide promotes to shift up rather than the one end of the lever of contact, makes the other end of the lever that is fixed with the compression leg drive the compression leg and move down press test switch and make the circuit breaker dropout, and the protruding counterpoint of second at this.

In a preferred embodiment of the present invention, the slide plate is in contact with the lever through a slope.

In a preferred embodiment of the present invention, the electric operating device includes a box, an operating mechanism installed in the box, and a slider linked with the operating mechanism, the slider is used for connecting with a handle of the circuit breaker, the operating mechanism drives the slider to move, and the slider moves to drive the handle to move so as to perform the opening and closing operation on the circuit breaker.

In a preferred embodiment of the present invention, the operating mechanism includes a driving shaft, a flange fixed on the upper end of the driving shaft, a large disc fixed on the shaft body of the driving shaft, a cam fixed on the lower end of the driving shaft, and a pulley fixed on the cam, wherein the pulley is rotated synchronously with the cam for pushing the slider in contact with the pulley to move, and then the handle is driven to move.

In a preferred embodiment of the present invention, the operating mechanism is driven by a manual drive lock or a remote electrically controlled drive mechanism.

In a preferred embodiment of the present invention, the manual drive lock is provided on the flange.

In a preferred embodiment of the present invention, the remote electrically controlled driving structure includes a remote control circuit, a motor connected to the remote control circuit, and a gear box connected to the motor, wherein a final transmission gear of the gear box is in contact with a large disk on the operating mechanism, and the motor is driven by the terminal controller through the remote control circuit.

In a preferred embodiment of the present invention, the box body has a partition plate in the middle and a fixing plate at the bottom, the motor is fixed on the fixing plate, and the gear box is fixed on the partition plate.

In a preferred embodiment of the present invention, the gear box is a three-stage transmission gear box.

In a preferred embodiment of the present invention, the housing of the gear box is a plastic housing integrally injection-molded by plastic material.

The utility model has the advantages that: the utility model discloses a by the structural design of pressing of safety lock control, first arch, slide, lever, compression leg through the linkage mutually support, make press the structure and have longer stroke of pressing, can ensure to press test switch on the circuit breaker and target in place to the second arch can carry on spacingly to the slider when pushing down test switch, avoids the slider to the direction removal of opening a floodgate, thereby improves the safety in utilization.

Drawings

Fig. 1 is a schematic view of the overall structure of an electric operation device;

FIG. 2 is a first schematic view of the internal structure of the electrically operated device;

FIG. 3 is a second schematic view of the internal structure of the electrically operated device;

FIG. 4 is a third schematic view of the internal structure of the electrically operated device;

FIG. 5 is a fourth schematic view of the internal structure of the electrically operated device;

FIG. 6 is a schematic view of the assembled structure of the partition and the gearbox housing;

FIG. 7 is a schematic structural view of the gearbox housing;

FIG. 8 is a schematic view of the structure of the separator;

the parts in the drawings are numbered as follows:

1. the device comprises a box body, 11, a fixing plate, 12, a partition plate, 121, guide rails, 122, positioning holes, 123, lock holes, 13 and a panel; 2. the device comprises an operating mechanism 21, a driving shaft 22, a flange plate 23, a large disk 24, a cam 25 and a pulley; 3. a slider; 4. a manual drive lock; 5. the remote electric control driving structure 51, the motor 511, the motor transmission gear 52, the gear box 521, the gear box shell 5211, the shell body 5212, the concave cavity 5213, the positioning end 5214, the lock rod 5215, the positioning boss 5216, the avoiding notch 5217 and the mounting hole; 6. a protective structure 61, a flip cover 62 and a microswitch; 7. safety locking mechanism, 71, safety lock, 72, pivot, 721, first arch, 722, second arch, 73, slide, 74, lever, 75, compression leg.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to fig. 1, an embodiment of the present invention includes:

an electric operating device can carry out reset operation and opening and closing operation on a circuit breaker in a manual operation mode and a remote electric control operation mode;

as shown in fig. 2 to 5, the electric operating device comprises a box body 1, an operating mechanism 2 installed in the box body 1, and a slider 3 linked with the operating mechanism 2, wherein a fixing plate 11 is arranged at the bottom of the box body 1, the electric operating device is connected with the circuit breaker through the fixing plate 11, a partition plate 12 is arranged in the middle of the box body 1, the slider 3 is slidably arranged on a guide rail 121 on the partition plate 12, the slider 3 is used for being connected with a handle of the circuit breaker, the operating mechanism 2 acts to drive the slider 3 to act, and the slider 3 acts to drive the handle of the circuit breaker to act to realize the opening and closing operation of;

the operating mechanism 2 can drive the lock 4 through manual control or drive the lock 5 through remote electric control to act;

in this embodiment, the operating mechanism 2 includes a driving shaft 21, a flange 22 fixed at the upper end of the driving shaft 21, a large disk 23 fixed at the shaft body of the driving shaft 21, a cam 24 fixed at the lower end of the driving shaft 21, and a pulley 25 fixed on the cam 24, wherein the pulley 25 rotates synchronously with the cam 24 to push the slider 3 in contact with the pulley 25 to move, and then drives the handle to move;

further, the manual control drive lock 4 is arranged on the flange plate 22, a key matched with the manual control drive lock 4 is inserted into the manual control drive lock 4, the key is rotated to drive the drive shaft 21 to rotate, the drive shaft 21 rotates to drive the cam 24 fixed on the drive shaft 21 to rotate, the pulley 25 fixed on the cam 24 rotates in place along with the cam 24 (the manual control drive lock 4 is in an unlocking state), the pulley 25 pushes the sliding block 3 in contact with the pulley 25 to move back and forth along the guide rail 121, and then the handle is driven to move to realize the opening and closing operation;

the remote electric control driving structure 5 comprises a remote control circuit, a motor 51 connected with the remote control circuit and a gear box 52 connected with the motor 51, wherein a final-stage transmission gear of the gear box 52 is in contact with a large disc 23 on the operating mechanism 2, the motor 51 is driven by a terminal controller through the remote control circuit to act, the motor 51 drives the gear box 52 to transmit, the gear box 52 drives the large disc 23 to rotate, the large disc 23 rotates to drive a driving shaft 21 and a cam 24 which are fixed together with the large disc 23 to rotate, a pulley 25 fixed on the cam 24 rotates together with the cam 24 to be in place at the moment, the pulley 25 pushes a sliding block 3 in contact with the pulley 25 to move back and forth along a guide rail 121, and then a handle is driven to;

in this embodiment, the gear box 52 is installed on the partition plate 12, the motor 51 is installed on the fixing plate 11, a motor transmission gear 511 is fixed on an output shaft of the motor 51, the motor transmission gear 511 is engaged with a first-stage transmission gear in the gear box 52, a last-stage transmission gear in the gear box 52 is in contact with the large disc 23, the motor 51 drives the gear box 52 to transmit and then drives the large disc 23 to rotate, the large disc 23 rotates to drive the driving shaft 21 fixed together with the large disc 23 to rotate, the driving shaft 21 rotates to drive the cam 24 to rotate, the pulley 25 synchronously rotates in place along with the cam 24 to push the slider 3 to move, and finally the handle is driven to act to realize the;

preferably, the gearbox 52 in this embodiment is a three-stage transmission gearbox.

With further reference to fig. 6 to 8, in this embodiment, in order to facilitate the installation of the gear box 52 and the positioning and supporting of the transmission gear in the gear box 52, the gear box 52 has a gear box positioning structure, the gear box positioning structure includes a gear box housing 521, the gear box housing 521 is fixed on the partition plate 12, the gear box housing 521 is formed by integral injection molding of a plastic material, and includes a housing body 5211 and a cavity 5212 located in the housing body 5211, the housing body 5211 is provided with three positioning ends 5213 and a lock rod 5214, a plurality of positioning bosses 5215 protruding from the upper end surface of the housing body 5211 are arranged in the cavity 5212, and the positioning bosses 5215 are used for limiting and supporting the transmission shaft of the gear located in the cavity 5212.

Specifically, the positioning ends 5213 are distributed along the edge of the housing body 5211 and are engaged with the positioning holes 122 on the partition 12; the latch 52 extends downwardly along the lower edge of the housing to engage a latch aperture 123 in the partition 12.

An escape notch 5216 is formed in the side wall of the housing body 5211 close to the motor 51, and is used for enabling a motor transmission gear 511 at the output shaft end of the motor 51 to be in contact engagement with a first-stage transmission gear in the gear box 52.

The housing body 5211 is further provided with a mounting hole 5217, and the mounting hole 5217 is used for mounting the driving shaft 21 of the operating mechanism 2.

With continued reference to fig. 3, in the present embodiment, the remote control circuit is turned on and off by a micro switch 62, and the micro switch 62 is disposed on the panel 13 at the upper end of the box 1 and below the edge of the flip 61.

Specifically, a panel 13 is arranged at the upper end of a box body 1 of the electric operating device, a protective structure 6 for protecting the manual control driving lock 4 is arranged on the panel 13, the protective structure 6 comprises a flip cover 61 and a micro switch 62 arranged below the edge of the flip cover 61, the micro switch 62 is used for controlling the on-off of a remote control circuit, when the electric operating device is in a manual operating mode, the flip cover 61 is opened, the micro switch 62 is triggered to cut off the power of the remote control circuit, and therefore the manual operating mode and the remote electric control operating mode are prevented from being used at the same time;

specifically, in a normal state, the flip cover 61 in the protection structure 6 is covered above the manual control drive lock 4, at this time, the flip cover 61 is in contact with the micro switch 62 to trigger the micro switch 62 to be powered on, so that the remote control circuit is controlled to be powered on, the remote control circuit can drive the motor 51 to act, the motor 51 acts to drive the gear box 52 to act, the gear box 52 acts to drive the large disc 23 to act, and then the drive shaft 21, the cam 24 and the pulley 25 are driven to act, and finally the slider 3 is driven to move and the handle acts, so that the opening and closing operation of the circuit breaker is realized;

when a manual operation mode is needed, the flip cover 61 is opened, the microswitch 62 is separated from the flip cover 61 at the moment, the microswitch 62 is reset and loses power, and the remote control circuit is disconnected, so that when the manual operation mode is in, the remote electric control operation mode cannot be started, and the situation that when a maintenance worker uses the manual operation mode to drive the operation mechanism 2 to drive the handle brake-off to perform maintenance, the motor 51 is remotely controlled and started by the terminal controller, and the operation mechanism 2 is driven to drive the handle brake-off to cause safety accidents to the maintenance worker is avoided.

With continuing reference to fig. 3 and 4, the electric operating device is further provided with a safety locking mechanism 7, a pressing structure for pressing down the circuit breaker test switch and a safety lock 71 for controlling the action of the pressing structure are arranged in the safety locking mechanism 7, the pressing structure includes a rotating shaft 72, a sliding plate 73 linked with the rotating shaft 72, a lever 74 contacted with the sliding plate 73, and a pressing column 75 fixedly connected below the end of the lever 74, the safety lock 71 is fixedly connected to the rotating shaft 72, the rotating shaft 72 is provided with a first protrusion 721 capable of aligning to push the sliding plate 73 to move, and the rotating shaft 72 is further provided with a second protrusion 722 capable of aligning to block the sliding block 3 from moving;

the safety lock 71 rotates to drive the rotating shaft 72 to rotate, when the safety lock 71 is in an unlocking state, the first protrusion 721 pushes the sliding plate 73 to move in an alignment mode, the sliding plate 73 pushes one end of the lever 74 in contact with the sliding plate to move upwards, the other end of the lever 74 fixed with the pressing column 75 drives the pressing column 75 to move downwards to press the test switch to enable the circuit breaker to be tripped, and at the moment, the second protrusion 722 aligns to block the sliding block 3 to move towards a closing direction;

through the mutual matched structural design of the first protrusion 721, the sliding plate 73, the lever 74 and the pressing column 75, the pressing structure has a long pressing stroke, a test switch on the circuit breaker can be pressed in place, the second protrusion 722 can limit the sliding block 3 when the test switch is pressed down, the sliding block 3 is prevented from moving towards the opening direction, and therefore the use safety is improved.

Specifically, during the use, a key matched with the safety lock 71 is inserted into the safety lock 71 to rotate to open the safety lock 71, at the moment, the key rotates to drive the safety lock 71 and the rotating shaft 72 to rotate, the first protrusion 721 is aligned to push the sliding plate 73 when the rotating shaft 72 rotates in place, the sliding plate 73 is in contact with the lever 74 through a slope surface, when the sliding block 73 moves, the lever 74 is pushed to move upwards from one end of the sliding block which is in contact with the lever 74, so that the other end of the sliding block 75 is moved downwards, namely, the sliding block 75 is driven to press downwards to push the test switch to be opened, at the moment, the second protrusion 722 rotates to be aligned to the end of the sliding block 3, the sliding block 3 can be locked to move towards the direction of the sliding block, and therefore, when the circuit breaker is tripped by pressing.

When the safety lock 71 is in a locked state, the first protrusion 721 is not aligned with the sliding plate 73, and the second protrusion 722 is not aligned with the sliding block 3, that is, when the test switch is not pressed, the operating mechanism 2 can be normally driven to perform an opening and closing operation.

In summary, the utility model adopts the safety protection structure and the safety locking mechanism, so that the remote electric control operation mode does not work when the operation mechanism is in the manual operation mode, and meanwhile, when the test switch is pressed down to release the circuit breaker, the operation mechanism can not be driven to act, thereby improving the operation safety;

specifically, a flip cover and a microswitch are matched with each other to form a safety protection structure, the flip cover is used for protecting a manual control drive lock, and simultaneously the flip cover is used for triggering the microswitch, when the flip cover is covered above the manual control drive lock, the flip cover is contacted with the microswitch, the microswitch is triggered to be powered on to enable a remote control circuit to be powered on, so that the device can be driven to act by a remote electric control drive structure, when the flip cover is separated from the manual control drive lock, the flip cover is simultaneously separated from the microswitch to reset and power off the microswitch, so that the remote control circuit is disconnected, therefore, when the flip cover is separated from the manual control drive lock to enable the device to be in a manual operation mode, the remote electric control drive structure cannot be started, and personal injury caused by the action of the remote electric control operation mode drive device can be avoided when maintenance;

the safety locking mechanism composed of a pressing structure is well adopted, the pressing structure is controlled to act through the safety lock, the pressing structure is matched with the sliding plate, the lever and the pressing column in a linkage mode, the pressing structure is enabled to have a long pressing stroke, the test switch on the circuit breaker can be pressed in place, the second protrusion can limit the sliding block when the test switch is pressed down to enable the circuit breaker to be tripped, the sliding block is prevented from moving towards the switching-off direction, and therefore the use safety is improved.

In addition, the gearbox shell is integrally injection-molded by plastic materials, and the positioning end and the lock rod are arranged on the shell, so that the shell is conveniently and fixedly connected with the partition plate, and the shell has the characteristic of convenient disassembly and assembly; meanwhile, the positioning boss capable of limiting and supporting the gear transmission shaft is arranged on the shell, so that the displacement of the gear can be limited, the reliability of limiting and fixing the gear transmission shaft is improved, meanwhile, the boss does not need to be machined on the gear transmission shaft, and the manufacturing cost can be reduced.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the products of the present invention are usually placed when used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes made by the contents of the specification and the drawings are utilized, or between or indirectly applied to other related technical fields, all the same are included in the patent protection scope of the present invention.

Claims (10)

1. A safety lock mechanism of an electric operation device, provided on a side of a slider that is interlocked with an operation mechanism in the electric operation device, characterized by comprising: the safety lock is used for controlling the pressing structure to act, when the safety lock is in an unlocking state, the pressing structure presses the test switch down to enable the circuit breaker to be tripped, and meanwhile the locking sliding block moves towards the closing direction.

2. The safety locking mechanism of an electric operating device according to claim 1, wherein the pressing structure comprises a rotating shaft, a sliding plate, a lever and a pressing post, a first protrusion capable of aligning to push the sliding plate to move is arranged on the rotating shaft, a second protrusion capable of aligning to block the sliding block to move is further arranged on the rotating shaft, the safety lock is fixedly connected to the rotating shaft, the safety lock rotates to drive the rotating shaft to rotate, when the safety lock is in an unlocking state, the first protrusion aligns to push the sliding plate to move, the sliding plate pushes one end of the lever in contact with the sliding plate to move upwards, the other end of the lever fixed with the pressing post drives the pressing post to move downwards to press the test switch to trip the circuit breaker, and at the moment, the second protrusion aligns to block the sliding block to move towards.

3. The safety lock mechanism of an electrically operated device according to claim 2, wherein the slide plate is in contact with the lever through a slope surface.

4. The safety locking mechanism of the electric operating device according to claim 1, wherein the electric operating device comprises a box body, an operating mechanism installed in the box body, and a slider linked with the operating mechanism, the slider is used for being connected with a handle of the circuit breaker, the operation of the operating mechanism drives the slider to act, and the slider acts to drive the handle to act so as to perform switching-on and switching-off operations on the circuit breaker.

5. The safety lock mechanism of an electrically operated device as claimed in claim 4, wherein the operating mechanism comprises a driving shaft, a flange fixed to an upper end of the driving shaft, a large disc fixed to a shaft body of the driving shaft, a cam fixed to a lower end portion of the driving shaft, and a pulley fixed to the cam, the pulley being rotated in synchronization with the cam for pushing a slider in contact with the pulley to move, thereby actuating the handle.

6. The safety locking mechanism for an electrically operated device according to claim 4 or 5, wherein the operating mechanism is actuated by a manually operated drive lock or a remotely controlled electrically operated drive mechanism.

7. The safety locking mechanism for an electrically operated device of claim 6, wherein the manual drive lock is provided on the flange.

8. The safety lock mechanism of an electric operating device according to claim 6, wherein the remote electrically controlled driving structure comprises a remote control circuit, a motor connected with the remote control circuit, and a gear box connected with the motor, wherein a final transmission gear of the gear box is in contact with a large disc on the operating mechanism, and the motor is driven by the terminal controller through the remote control circuit.

9. The safety lock mechanism of an electrically operated device according to claim 8, wherein the case has a partition plate at a middle portion thereof and a fixing plate at a bottom portion thereof, the motor is fixed to the fixing plate, and the gear case is fixed to the partition plate.

10. The safety lock mechanism of an electrically operated device according to claim 9, wherein the housing of the gear case is a plastic housing integrally injection-molded from a plastic material.

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