CN220933959U - Limiting device of automatic change-over switch, automatic change-over switch and electric equipment - Google Patents

Abstract

The application provides a limiting device of an automatic transfer switch, the automatic transfer switch and electric equipment, and relates to the technical field of low-voltage appliances. When the common power supply is switched on and the standby power supply is switched on, the knob cannot rotate towards the isolation position, and the problem that the normal work of the automatic transfer switch is affected due to misoperation of the knob is avoided.

Description

Limiting device of automatic change-over switch, automatic change-over switch and electric equipment

Technical Field

The application relates to the technical field of piezoelectric devices, in particular to a limiting device of an automatic transfer switch, the automatic transfer switch and electric equipment.

Background

The automatic change-over switch can switch among three operation modes, namely automatic operation mode, manual operation mode and isolation mode, through the knob so as to meet different scene requirements.

In the course of conception and implementation of the present application, the inventors found that at least the following problems exist: when the knob is switched among three operation modes, misoperation can be caused by touching the knob, especially when the automatic change-over switch is in a common power supply switching-on state and a standby power supply switching-on state, if the knob is carelessly operated by mistake, the normal operation of the automatic change-over switch can be influenced when the knob is rotated to an isolation mode, and the automatic change-over switch can be broken down when serious.

The foregoing description is provided for general background information and does not necessarily constitute prior art.

Disclosure of utility model

The application aims to solve the technical problems and provide a limiting device of an automatic transfer switch, the automatic transfer switch and electric equipment, which can limit a knob and avoid misoperation of the knob.

In order to solve the technical problems, the technical scheme adopted by the embodiment of the application is as follows:

In one aspect of the embodiments of the present application, a limiting device for an automatic transfer switch is provided, where the automatic transfer switch has at least three position states of normal closing, standby closing and double-split closing, and includes a knob and a knob limiting member that are mutually matched, where the knob is used for switching the automatic transfer switch between an automatic position, a manual position and an isolation position, and the knob limiting member is used for limiting the knob when the automatic transfer switch is in the normal power closing and the standby power closing, so as to limit the knob in the automatic position or the manual position.

Optionally, the knob limiting part comprises a manual part pivotally arranged in the shell, the manual part is linked with an operating mechanism of the automatic transfer switch, the operating mechanism is used for connecting the contact device, and the knob is pivotally arranged on the shell.

Optionally, the rotating surface of the manual operation piece and the rotating surface of the knob are perpendicular to each other.

Optionally, a limiting part is arranged on the manual operation piece, an extension shaft extending into the shell is arranged on the knob, and the knob is limited by the abutment of the extension shaft and the limiting part.

Optionally, the limiting part comprises a first limiting table and a second limiting table protruding from the first surface of the manual operation piece, and the extension shaft is limited through the first limiting table and the second limiting table respectively.

Optionally, when the automatic transfer switch is switched on by a common power supply, the inner wall of the first limiting table facing the second limiting table is propped against the extension shaft so as to limit the movement of the extension shaft towards the isolation position;

When the automatic transfer switch is in standby power supply closing, the outer wall, far away from the first limiting table, of the second limiting table is propped against the extension shaft so as to limit the extension shaft to move towards the isolation position.

Optionally, when the automatic transfer switch is in a double-split state, the motion track of the extension shaft is far away from the first limiting table and the second limiting table, so that the knob can be switched among the automatic position, the manual position and the isolation position at will.

In another aspect of the embodiments of the present application, an automatic transfer switch is provided, including a limiting device of the automatic transfer switch described above.

In yet another aspect of the embodiments of the present application, an electrical device is provided, where the electrical device includes the automatic transfer switch described above.

The beneficial effects of the application include:

The application provides a limiting device of an automatic transfer switch, the automatic transfer switch and electric equipment. When the common power supply is switched on and the standby power supply is switched on, the knob cannot rotate towards the isolation position, and the problem that the normal work of the automatic transfer switch is affected due to misoperation of the knob is avoided.

The electric equipment is provided with the automatic transfer switch, the automatic transfer switch is applied to the electric equipment, the electric equipment can be applied to the whole house intelligence, and the electric equipment can be applied to the intelligent home and the Internet of things industry so as to realize the intelligent management of the whole house.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an automatic transfer switch according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a mode switching device according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a partial structure of a mode switching device according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a knob structure of a mode switching device according to an embodiment of the present application;

FIG. 5 is a second schematic diagram of a knob structure of a mode switching device according to an embodiment of the present application;

Fig. 6 is a schematic diagram of a sliding member of a mode switching device according to an embodiment of the present application;

fig. 7 is a schematic view of a padlock member of a mode conversion device according to an embodiment of the present application;

FIG. 8a is a schematic view of a mode switching device according to an embodiment of the present application;

FIG. 8b is a schematic diagram showing a second state of the knob of the mode switching device according to the embodiment of the present application when the knob is at the automatic position;

FIG. 9a is a schematic view showing a knob of a mode switching device in a manual position according to an embodiment of the present application;

FIG. 9b is a schematic diagram showing a second mode switch device according to the embodiment of the present application when the knob is in the manual position;

FIG. 10a is a schematic view illustrating a state of a knob of a mode switching device in an isolated position according to an embodiment of the present application;

FIG. 10b is a schematic diagram showing a second state of the knob of the mode switching device in the isolated position according to the embodiment of the present application;

FIG. 11 is a schematic diagram of a limited structure of a knob of an automatic transfer switch according to an embodiment of the present application;

FIG. 12 is a second schematic view of a knob limiting structure of an automatic transfer switch according to an embodiment of the present application;

FIG. 13 is a schematic diagram of a knob switchable structure of an automatic transfer switch according to an embodiment of the present application;

Fig. 14 is a schematic structural diagram of a manual component of an automatic transfer switch according to an embodiment of the present application;

fig. 15 is a schematic view of a limiting structure of an indicator and a padlock of an automatic transfer switch according to an embodiment of the present application;

Fig. 16 is a schematic view of an indication member and a padlock member releasing limiting structure of an automatic transfer switch according to an embodiment of the present application;

Fig. 17 is a second schematic structural diagram of an automatic transfer switch according to an embodiment of the present application.

Icon: 10-an actuator; 11-a housing; 11 a-window; 11 b-handle aperture; 12-gear piece; 21-a handle; 22-manual operation piece; 22 a-a first stop; 22 b-a second limiting table; 220-indicator; 220 a-a first stop; 220 b-a chute; 223-manual hole; 23-a knob; 230-extending the shaft; 231-mounting part; 232-an indication part; 24-slide; 240-linkage groove; 241-an operation hole; 242-projecting bars; 25-padlock members; 250-hanging lock surface; 251-groove; 252-bump; 30-contact means.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. It should be noted that, under the condition of no conflict, the features of the embodiments of the present application may be combined with each other, and the combined embodiments still fall within the protection scope of the present application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the product of the application, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 and 2, in one aspect of the embodiment of the present application, a mode switching device is provided, which includes a housing 11, a knob 23, a slider 24, and a padlock member 25, where the knob 23 and the slider 24 are disposed in linkage, and the slider 24 can be moved closer to or further from the padlock member 25 by the knob 23; the knob 23 has at least one of a manual, automatic, and isolated position, and the slider 24 is slidably mounted to the housing 11 to assist in at least one of the manual, automatic, and isolated positions, and when the knob 23 is in the isolated position, the padlock member 25 is pulled out of the housing 11 to limit movement of the slider 24 and thereby limit the knob 23 to the isolated position. When knob 23 is in the manual or automatic position, slider 24 cooperates with housing 11 to place the mode switching device in the manual or automatic position for manual or automatic operation.

The knob 23, the sliding piece 24 and the padlock piece 25 are all arranged on the shell 11, wherein the sliding piece 24 can be a sliding cover plate; the knob 23 is rotatably arranged on the shell 11, and the rotation can rotate relative to the shell 11, so that the knob 23 has three position states of automatic, manual and isolated through rotation; the knob 23 is linked with the sliding part 24 when the three positions are switched automatically, manually and separately, so that the sliding part 24 is driven to slide to the first position or slide to the second position, and the sliding direction of the sliding part 24 is close to the padlock part 25 or far from the padlock part 25, so that the sliding part is locked or unlocked with the padlock part 25; when the knob 23 is in the automatic, manual and isolation positions, respectively, the slider 24 is also in different positions corresponding to the automatic, manual and isolation positions, respectively.

When the knob 23 is switched between the automatic, manual and isolated positions, the sliding member 24 can open or close the operation hole 241 according to the different positions of the sliding member 24, and the operation hole 241 is used for inserting the handle 21 so as to facilitate manual operation. Only when the knob 23 is in the manual position, the slider 24 is moved to the operation hole 241 open position, at which time manual operation is possible.

The padlock member 25 is only when the knob 23 is in the isolated position, the sliding member 24 releases the restriction of the padlock member 25, at this time, the padlock member 25 can be pulled out, which is called padlock operation, and when the padlock member 25 is pulled out, the knob 23 cannot be switched in position, that is, the knob 23 is limited in the isolated position and cannot be switched to the automatic or manual position, at this time, the automatic change-over switch cannot be operated automatically or manually.

The automatic transfer switch can be limited to an isolation mode by padlock operation, and the knob 23 cannot operate in other modes; when the automatic transfer switch is in the isolation position, the automatic transfer switch is in the double-split state, and the automatic transfer switch can be maintained at the time so as to ensure the safety of maintenance personnel.

Therefore, in the mode conversion device provided by the embodiment of the application, the knob 23 and the sliding piece 24 are arranged in a linkage way, and the sliding piece 24 can be driven to be close to or far away from the padlock piece 25 by rotating the knob 23 so as to be locked or unlocked with the padlock piece 25; the knob 23 has a manual, automatic, isolated position state, and when the knob 23 is in the manual position, the slider 24 is moved to the operation hole 241 open state, and the manual operation is performed by fitting the handle 21 into the operation hole 241; when the knob 23 is at the automatic position, the sliding member 24 moves to the state that the operation hole 241 is closed, and at this time, automatic operation can be performed; when the knob 23 is in the isolation position, the padlock member 25 is pulled out from the housing 11 to limit the movement of the sliding member 24, so that the knob 23 is limited in the isolation position, the knob 23 cannot be automatically or manually operated, and at the moment, the automatic change-over switch is in a double-split state, so that the automatic change-over switch can be maintained, and the safety of maintenance personnel can be ensured. The application adopts the knob 23, the sliding piece 24 and the padlock piece 25 to realize the switching among all modes and complex interlocking logic, thereby simplifying the structure, reducing the jamming feeling in the operation and improving the convenience of the operation; the functions of mode switching, padlock and the like are realized through the least parts, and the cost is reduced.

Further, a knob 23 is rotatably provided on the housing 11, and a first linkage part is formed on the knob 23; the sliding member 24 is slidably disposed in the housing 11, and a second linkage portion is formed on the sliding member 24, so that the sliding member 24 is driven to move horizontally by the rotation of the knob 23 through the cooperation of the first linkage portion and the second linkage portion, so that the sliding member 24 is in at least one of a manual, an automatic and an isolated state along with the knob 23. That is, when the knob 23 is in the manual, automatic, and isolation positions, respectively, the slider 24 is also in different positions, respectively.

As shown in fig. 4, the knob 23 has a flat cylindrical mounting portion 231, the mounting portion 231 is pivotally connected to the housing 11, the first linkage portion includes an extension shaft 230 disposed on the knob 23, the extension shaft 230 is located on one side of the mounting portion 231, and a cylindrical indication portion 232 is further disposed on the other side of the mounting portion 231, and the indication portion 232 is used for indicating the position state of the knob 23; the indicator 232 is located on the housing 11 and the extension shaft 230 extends into the housing 11. And for the sliding member 24, the second linkage part includes a linkage groove 240 disposed on the sliding member 24, the linkage groove 240 is an elongated groove, and the extension shaft 230 of the knob 23 extends into the linkage groove 240 of the sliding member 24 to be matched with the same.

As shown in fig. 3, the knob 23 is rotatably mounted on the housing 11, and the extension shaft 230 extends into the linkage groove 240 through the housing 11; when the knob 23 is turned, the extension shaft 230 is engaged by the linkage groove 240 to move the slider 24 horizontally in a direction parallel to the upper surface of the housing 11 so that the slider 24 is either close to the padlock member 25 or far from the padlock member 25.

Wherein, as shown in fig. 5, the central line of the extension shaft 230 and the mounting portion 231 is deviated from the center line of the indication portion 232. The mounting portion 231 is cylindrical, and an included angle exists between a connecting line between the axis of the extension shaft 230 and the center (circle center) of the circular section of the mounting portion 231 and the central axis of the indicating portion 232, that is, the connecting line and the central axis are not coincident. The arrangement is such that the extension shaft 230 is offset from the centre line of the knob 23 to facilitate a position match with the slider 24 to move the slider 24 horizontally and to co-act with the padlock member 25.

As shown in fig. 6, the operation hole 241 is provided in the slider 24, the housing 11 is provided with a window 11a for corresponding to the operation hole 241, and when the knob 23 is in the manual position, the operation hole 241 of the slider 24 is located in a position corresponding to the handle hole 11b in fig. 1, and the operation hole 241 is opened to allow the handle 21 to be inserted into the operation hole 241 through the handle hole 11b and to be interlocked with the manual operation device.

For example, the operation hole 241 is a long hole disposed on the sliding member 24, a circular window 11a is disposed on the housing 11, and when the knob 23 rotates to the manual position, the operation hole 241 of the sliding member 24 is driven to move to a position corresponding to the window 11a, meanwhile, the manual operation hole 223 is also disposed on the manual operation device in the housing 11, and the operation hole 241 of the sliding member 24 corresponds to the manual operation hole 223, so that the handle 21 can sequentially pass through the handle hole 11b of the housing 11, the operation hole 241 of the sliding member 24, and the manual operation hole 223 of the manual operation device to drive the manual operation device to perform the manual operation.

The padlock member 25 is slidably disposed within the housing 11 such that the padlock member 25 can be pulled out of the housing 11 when the knob 23 is in the isolated position; the padlock member 25 is provided with a first locking part, the sliding member 24 is provided with a second locking part, the first locking part is matched with the second locking part to realize the locking of the padlock member 25, and the sliding member 24 limits the padlock member 25 in a manual or automatic state; in the isolated state, the padlock member 25 is pulled out of the housing 11 to limit the movement of the slider 24, thereby limiting the knob 23 to the isolated position.

The padlock member 25 is slidable in a direction perpendicular to the upper surface of the housing 11, i.e. the sliding direction of the padlock member 25 is perpendicular to the moving direction of the slider 24.

When the sliding piece 24 moves horizontally by the driving of the knob 23 to approach the padlock piece 25, the first locking part of the padlock piece 25 is matched with the second locking part of the sliding piece 24, so that the padlock piece 25 can be locked, and the padlock piece 25 cannot move and cannot be pulled out of the shell 11; when the sliding member 24 is driven by the knob 23 to move away from the padlock member 25 by a certain distance, the sliding member 24 gradually releases the restriction of the padlock member 25, and when the restriction is completely released, the padlock member 25 can be pulled out from the housing 11 to restrict the movement of the sliding member 24, thereby restricting the knob 23 in the isolation position.

Specifically, as shown in fig. 7, the first locking portion includes a groove 251 provided on the padlock member 25, and the second locking portion includes a protrusion 242 provided on the slider 24, the protrusion 242 being provided along the moving direction of the slider 24, the protrusion 242 extending into the groove 251 to lock the padlock member 25.

In one embodiment, as shown in fig. 6 and 7, the padlock member 25 is a flat plate structure, and grooves 251 are formed on both sides of the flat plate structure. Two protruding rods 242 extend from the slide 24, the protruding rods 242 being arranged towards the padlock members 25. When the sliding member 24 moves toward the padlock member 25, the two protruding rods 242 of the sliding member 24 respectively extend into the two grooves 251 of the padlock member 25 to lock the padlock member 25, thereby restricting the movement of the padlock member 25, and the padlock member 25 cannot be pulled out and cannot be padlock-operated.

On the other hand, the padlock member 25 has a padlock surface 250 facing the slider 24, and the recess 251 penetrates the padlock member 25 from the padlock surface 250 to a side wall perpendicular to the padlock surface 250; when the knob 23 is in the isolation position, the sliding member 24 moves away from the padlock member 25, the protruding rod 242 is separated from the groove 251, the padlock member 25 can be pulled out from the housing 11, and the end of the protruding rod 242 is in a state of abutting against the hanging surface 250 to limit the movement of the sliding member 24, so as to limit the knob 23 in the isolation position.

The surface of the padlock member 25 facing the slider 24 is defined as the padlock face 250, and the notch of the recess 251 is located in the padlock face 250, the depth of the recess 251 being the thickness of the side wall perpendicular to the padlock face 250, i.e. the recess 251 extends through the side wall of the padlock member 25.

When the sliding member 24 moves toward the padlock member 25, the two protruding rods 242 of the sliding member 24 respectively extend into the two grooves 251 of the padlock member 25, so that the padlock member 25 is locked, and the padlock operation cannot be performed. When the sliding member 24 moves away from the padlock member 25, the protruding rod 242 is separated from the groove 251, after the protruding rod 242 is separated from the groove 251, the padlock member 25 can be pulled to move upwards for padlock operation, at this time, after the protruding rod 242 is just separated from the groove 251 and the padlock member 25 is pulled upwards, the end of the protruding rod 242 is still in a state of abutting against the padlock surface 250 of the padlock member 25, after the padlock member 25 is pulled out from the housing 11, the movement of the sliding member 24 is limited, and thus the knob 23 is limited in the isolation position, and the knob 23 is limited in the isolation position by padlock operation.

When unlocking is needed, the padlock member 25 is pressed down to the initial position, and at the moment, the knob 23 is turned to drive the sliding member 24 to move towards the padlock member 25 again, and when the protruding rod 242 stretches into the groove 251, the padlock member 25 is locked again.

At least one of the protruding rods 242 and the grooves 251 are correspondingly arranged, and in the application, two protruding rods 242 and grooves 251 are correspondingly arranged, and the two grooves 251 are respectively positioned on two opposite side walls of the padlock member 25, and the sliding member 24 clamps the padlock member 25 through the matching of the two protruding rods 242 and the two grooves 251.

When the two rods 242 extend into the two grooves 251, the sliding member 24 is equivalent to clamping the padlock member 25 to stably lock the padlock member 25.

In summary, the mode switching device provided by the embodiment of the application adopts the knob 23, the sliding piece 24 and the padlock piece 25, and the knob 23 has three positions of automatic, manual and isolation; the knob 23 is linked with the sliding piece 24 when the three positions are switched automatically, manually and separately, so that the sliding piece 24 is driven to slide to the first position or slide to the second position; when the knob 23 is in the automatic, manual and isolated three positions respectively, the sliding piece 24 is also in different positions respectively; the slider 24 can open or close the operation hole 241 when the knob 23 is switched between the automatic, manual, and isolated positions, and only when the knob 23 is in the manual position, the operation hole 241 is opened. The padlock member 25 can be pulled out only when the knob 23 is in the isolated position, and the knob 23 cannot be switched in position when in the pulled-out state.

The knob 23 is pivotally arranged on the shell 11, the knob 23 is linked with the sliding piece 24, and the sliding piece 24 is driven to slide under the action of external force; when the knob 23 rotates in the first direction, the slider 24 is driven to move in the first direction to reach the neutral point (the limit position of the movement of the slider 24 in the first direction), and then to move in the second direction, and when the knob 23 rotates in the second direction, the slider 24 is driven to move in the second direction to reach the neutral point (the limit position of the movement of the slider 24 in the second direction), and then to move in the first direction.

Illustratively, as shown in FIGS. 8 a-9 b, when knob 23 is rotated clockwise, through the automatic, manual and isolation positions in sequence, slider 24 moves toward padlock member 25 when knob 23 is in the automatic, manual position; when the knob 23 is in the automatic position as in fig. 8a, 8b, the projection 242 of the slider 24 protrudes into the recess 251 of the padlock member 25 to lock; with knob 23 in the manual position of fig. 9a, 9b, the projection 242 of the slider 24 extends deeper into the recess 251 of the padlock member 25 until the end of the projection 242 extends beyond the recess 251, at which point the slider 24 and padlock member 25 are locked deeper. At this time, the knob 23 is in the manual position, which is seen as the extreme position of the movement of the slider 24 in the first direction (the movement direction of the slider 24 toward the padlock member 25).

When the knob 23 is rotated from the manual position to the isolation position, as shown in fig. 10a and 10b, the sliding member 24 moves in the second direction in the opposite direction, that is, the sliding member 24 moves away from the padlock member 25, in the isolation position, the protruding rod 242 of the sliding member 24 just escapes from the groove 251 of the padlock member 25, at this time, the padlock member 25 can be pulled out, the padlock surface 250 abuts against the end of the protruding rod 242, and after the padlock member 25 is pulled out from the housing 11, the movement of the sliding member 24 is limited, so that the knob 23 is limited to the isolation position. After pressing the padlock member 25 back to the initial position, the protruding rod 242 of the slider 24 may gradually move in a direction approaching the padlock member 25 until it protrudes into the recess 251 of the padlock member 25, at which time the knob 23 may not continue to be rotated.

For the sliding member 24, the sliding member 24 is slidably mounted in the housing 11 horizontally, the protruding rod 242 provided on the sliding member 24 can limit the movement of the padlock member 25, when the protruding rod 242 of the sliding member 24 is out of the groove 251 of the padlock member 25, the padlock member 25 can be pulled out, and after the padlock member 25 is pulled out, the protruding rod 242 of the sliding member 24 abuts against the padlock surface 250 of the padlock member 25 to limit the sliding of the sliding member 24.

The padlock member 25 is vertically slidably mounted in the housing 11, and a first locking portion (groove 251) provided on the padlock member 25 may be locked by a second locking portion (projection 242) of the slider 24, thereby restricting movement of the padlock member 25, and after the projection 242 of the slider 24 is disengaged from the groove 251 of the padlock member 25, the padlock member 25 may be pulled out, and the padlock surface 250 of the padlock member 25 and the projection 242 of the slider 24 may abut against to restrict movement of the slider 24, thereby restricting the knob 23 in the isolated position.

When the male rod 242 of the slider 24 abuts against the padlock face 250 of the padlock member 25, the padlock member 25 is pulled out, the slider 24 is in a limit position of movement away from the padlock member 25, and the knob 23 is limited to the isolation position; after the padlock member 25 is pushed back, the knob 23 is gradually rotated to the manual and automatic positions in the process that the protruding rod 242 of the sliding member 24 extends into the groove 251, and when the knob 23 is at the manual position, the stroke of the protruding rod 242 extending into the groove 251 is maximum, and at this time, the sliding member 24 is at the limit position of moving close to the padlock member 25.

The knob 23, the sliding piece 24 and the padlock piece 25 are adopted, the mode switching and padlock functions are realized through the least parts, the padlock piece 25 is locked, and after the padlock piece 25 is pulled out of the shell 11, the movement of the sliding piece 24 is limited, the knob 23 is further limited in an isolation position, and the sliding piece 24 and the padlock piece 25 are provided with matched locking parts for positioning and limiting, so that complex interlocking logic is realized, and the cost is reduced; a design language consistent with the NDQ5 series products; the rotary friction resistance is small, the clamping stagnation is small, and the operation is convenient.

The above-mentioned mode switching device can be applied to an automatic change-over switch, and on the basis, please refer to fig. 3, the automatic change-over switch further comprises a manual device and an operating mechanism linked with the manual device, wherein the manual device comprises a manual piece 22, the manual device is linked with a gear piece 12 of the operating mechanism, and the operating mechanism is used for being connected with a contact device 30 to drive the contact device 30 to open and close. The manual operation device is provided with a manual operation hole 223, when the knob 23 rotates to the manual position, the operation hole 241 of the sliding piece 24 is driven to move to correspond to the handle hole 11b on the shell 11 and the three holes of the manual operation hole 223 of the manual operation device, the handle 21 sequentially penetrates through the handle hole 11b on the shell 11, the operation hole 241 of the sliding piece 24 and the manual operation hole 223 of the manual operation device, the manual operation device can be driven to rotate through the handle 21, and then the gear piece 12 is driven to rotate so as to drive the contact device 30 to open and close, and the function of manually operating the opening and closing is completed.

Further, the automatic transfer switch is further provided with a limiting device of the automatic transfer switch for limiting the knob 23.

The automatic change-over switch has at least three position states of common switch-on, standby switch-on and double-split, and the limiting device of the automatic change-over switch comprises a knob 23 and a knob limiting part which are matched with each other, wherein the knob 23 is used for switching the automatic change-over switch among an automatic position, a manual position and an isolation position, and the knob limiting part is used for limiting the knob 23 when the automatic change-over switch is in the common power switch-on and standby power switch-on so as to limit the knob 23 in the automatic position or the manual position.

The operating mechanism is used for being connected with the contact device 30, and the contact device 30 can be in three states of common closing, double-opening and standby closing respectively under the drive of external force; the manual operation device rotates by a certain angle when the contact device 30 is switched among the common switch-on state, the double switch-off state and the standby switch-on state, the manual operation device is positioned at different angles when the contact device 30 is in the common switch-on state, the double switch-on state and the standby switch-on state, the knob limiting piece limits the knob 23 when the common power supply is switched on and the standby power supply is switched on, and the knob 23 cannot rotate to the isolation position. When the knob stopper does not limit the knob 23, the knob 23 can be switched to the isolation position.

As shown in fig. 11 and 12, the knob limiter includes a manual operation member 22 pivotally disposed in the housing 11, the manual operation member 22 is linked with an operation mechanism of the automatic change-over switch, the operation mechanism is used for connecting the contact device 30, and the knob 23 is pivotally disposed on the housing 11.

The manual operation device comprises a manual operation piece 22, and the manual operation piece 22 can also serve as a knob limiting piece to limit a knob 23. The housing 11 is provided with a mounting hole through which the knob 23 is pivotally provided to the housing 11.

The knob 23 is arranged on the upper surface of the shell 11, and the knob 23 is arranged in parallel with the shell 11; the manual operation member 22 is arranged vertically to the housing 11, and the rotation surface of the manual operation member 22 and the rotation surface of the knob 23 are perpendicular to each other.

The hand-operated piece 22 is provided with a limiting part, the knob 23 is provided with an extension shaft 230 extending into the shell 11, and the hand-operated piece 22 limits the knob 23 through the abutting of the extension shaft 230 and the limiting part.

The extension shaft 230 of the knob 23 is further used for driving the sliding member 24 to slide, and after the extension shaft 230 extends into the housing 11, the knob 23 can be limited or released by matching with the limiting portion of the manual operation member 22.

The limiting part comprises a first limiting table 22a and a second limiting table 22b protruding 252 from the first surface of the manual operation piece 22, and the extension shaft 230 is limited by the first limiting table 22a and the second limiting table 22b respectively.

A protrusion 252 is formed on a first surface of the manual operation member 22 facing the extension shaft 230, and the protrusion 252 includes a first limit table 22a and a second limit table 22b; as shown in fig. 11, when the automatic transfer switch is switched on by the normal power supply, the inner wall of the first limiting table 22a facing the second limiting table 22b abuts against the extension shaft 230, so as to limit the movement of the extension shaft 230 toward the isolation position.

At this time, the clockwise rotation of the knob 23 can be switched between the automatic and manual positions, but the knob 23 cannot be rotated counterclockwise toward the isolation position due to the abutment of the inner wall of the first limit table 22 a.

As shown in fig. 12, when the automatic transfer switch is switched on by the standby power supply, the outer wall of the second limiting platform 22b far from the first limiting platform 22a abuts against the extension shaft 230 to limit the movement of the extension shaft 230 towards the isolation position.

Similarly, at this time, the clockwise rotation of the knob 23 can be switched between the automatic and manual positions, but the knob 23 cannot be rotated counterclockwise toward the isolation position due to the abutment of the outer wall of the second limit table 22 b.

As shown in fig. 13, when the automatic transfer switch is in the double-split state, the movement track of the extension shaft 230 is far away from the first limit table 22a and the second limit table 22b, so that the knob 23 can be switched at will between the automatic position, the manual position and the isolation position.

At this time, the movement track of the knob 23 avoids the first limit table 22a and the second limit table 22b, and the knob 23 may be any knob 23 to realize the switching among the automatic position, the manual position and the isolation position.

Through the arrangement, when the manual operation device is in the common power supply switching-on state and the standby power supply switching-on state, the knob 23 cannot rotate towards the isolation position, and the problem that the normal work of the automatic transfer switch is affected due to misoperation of the knob 23 is avoided.

On the other hand, as mentioned above, padlock operation is possible by the padlock member 25 to limit the automatic transfer switch to the isolation mode, and the knob 23 cannot be operated in the manual or automatic mode; when the automatic transfer switch is in the isolation position, the automatic transfer switch is in the double-split state, and the automatic transfer switch can be maintained at the moment so as to ensure the safety of maintenance personnel.

To further improve the safety of padlock operation, the automatic transfer switch further comprises a padlock locking device, wherein the padlock locking device comprises a padlock member 25 and a locking member matched with the padlock member 25, so as to limit the padlock member 25 when the automatic transfer switch is in a common power supply closing state and a standby power supply closing state; when the automatic transfer switch is in the double-split position, the limit of the padlock member 25 is released, and the padlock member 25 can be pulled out from the housing 11 to perform padlock operation.

In one embodiment of the application, as shown in FIG. 14, the locking member includes an indicator 220 for indicating the status of the actuator 10, the indicator 220 being in communication with the actuator 10.

In one embodiment, the indicator 220 and the manual operation member 22 are integrally disposed, when the manual operation member 22 rotates, the indicator 220 is driven to rotate synchronously, three indication areas are formed on the indicator 220, which are respectively a common closing area, a double-partition area or a standby closing area, and the three indication areas can be shown through a window 11a on the housing 11 to indicate the current state of the manual operation member 22.

Under the drive of external force, the actuating mechanism 10 corresponds to the contact device 30 and can be in three states of common closing, double-opening and standby closing respectively; the indicator 220 rotates by a certain angle when the driving mechanism performs switching among the normal closing, the double-opening and the standby closing, and the indicator 220 is positioned at different angles when the actuating mechanism 10 is in the normal closing, the double-opening and the standby closing states so as to indicate the corresponding states.

As shown in fig. 15, the padlock member 25 is slidably disposed in the housing 11 in a vertical direction perpendicular to the upper surface of the housing 11, and the padlock member 25 is slidably disposed in a direction perpendicular to the upper surface of the housing 11; the indicator 220 is pivotally disposed within the housing 11, and the padlock member 25 and the indicator 220 are disposed in parallel.

The padlock members 25 may be pulled or pushed back in a vertical direction perpendicular to the upper surface of the housing 11. The indicator 220 and the manual operation member 22 are integrally pivoted in the housing 11, and the manual operation member 22 and the indicator 220 can be driven to rotate by rotating the handle 21. The indicator 220 is rotatable within the housing 11, but the indicator 220 and the padlock 25 are parallel to each other.

The indication piece 220 is provided with a first limiting part 220a, the padlock piece 25 is provided with a second limiting part, and the padlock piece 25 is limited or released by the cooperation of the first limiting part 220a and the second limiting part.

As shown in fig. 15, the first limiting portion 220a is located at the bottom of the indicator 220 and below the indication area, the indicator 220 passes through the first limiting portion 220a and cooperates with the second limiting portion of the padlock member 25, and the indicator 220 can limit or release the movement of the padlock member 25 along the direction perpendicular to the upper surface of the housing 11.

The first limiting portion 220a on the indicator 220 does not limit the padlock member 25 in the middle position (i.e., when the indicator 220 rotates to an indication area of the middle position on the indicator 220 can be shown by the housing 11, i.e., when the actuator 10 is in the double-split state), and the padlock member 25 can be pulled out; the indicator 220 limits the padlock member 25 when the common power source is switched on and the standby power source is switched on, and the padlock member 25 cannot be pulled out of the padlock, in other words, the padlock cannot be operated when the common power source is switched on and the standby power source is switched on.

Specifically, the first limiting portion 220a is provided with a sliding slot 220b, the second limiting portion includes a protrusion 252, and the protrusion 252 is illustratively located at a bottom end of the padlock member 25, when the actuator 10 is in the double-split state, the indicator 220 rotates to a position where the sliding slot 220b cooperates with the protrusion 252, and pulling the padlock member 25 can move the protrusion 252 along the sliding slot 220b, so as to limit the operation mode of the automatic transfer switch to the isolation position, as shown in fig. 16.

When the indicator 220 is rotated to the position where the chute 220b is aligned with the protrusion 252 of the padlock member 25, the padlock member 25 is pulled to perform a padlock operation, the protrusion 252 of the padlock member 25 moves upward along the chute 220b, the indicator 220 cannot rotate because the protrusion 252 is restrained in the chute 220b, and at this time, the padlock operation can restrain the knob 23 in the isolated position, and the knob 23 cannot be manually and automatically operated.

The sliding groove 220b is arranged along the vertical direction when the actuator 10 is in the double-split state, the notch of the sliding groove 220b is positioned at the bottom of the indicating piece 220, and the bottom of the sliding groove 220b is used for limiting the sliding of the padlock piece 25 along the vertical direction.

The slot opening of the chute 220b is positioned below, the slot bottom is positioned above, and the protrusion 252 performs padlock operation when moving upwards along the chute 220 b; when the protrusion 252 slides up to the bottom of the chute 220b, the protrusion 252 cannot move upward, and the upward movement of the padlock 25 is limited.

When the padlock member 25 is pressed down, the protrusion 252 is separated from the chute 220b, and when the rotating manual member 22 drives the indicating member 220 to rotate, the protrusion 252 is not contacted with the chute 220b, the padlock member 25 does not influence the rotation of the indicating member 220, and the two are released from limit.

The manual operation member 22 drives the indicating member 220 to continue rotating, and when the actuating mechanism 10 is in a normal closing state and a standby closing state, the first limiting portion 220a and the second limiting portion abut against each other to limit the padlock member 25.

As shown in fig. 15, when the actuator 10 is in the normal closing state and the standby closing state, the indicator 220 rotates until the protrusion 252 is in a state of sliding out of the chute 220b, and when the padlock member 25 is to be pulled upwards, the protrusion 252 of the padlock member 25 abuts against the outer periphery of the indicator 220 (i.e., the outer periphery of the first limiting portion 220 a) to limit the sliding of the padlock member 25, i.e., the padlock member 25 cannot be pulled out, and thus the padlock operation cannot be performed.

After the protrusion 252 slides out of the chute 220b, the indicator 220 is driven to rotate by the manual operation member 22, and at this time, the chute 220b rotates to a position deviating from the protrusion 252, and the protrusion 252 cannot enter the chute 220b, so that the padlock member 25 is limited by the indicator 220, and the padlock member 25 cannot move upwards to perform padlock, thereby realizing the limitation of the padlock member 25; that is, in the normal closing state and the standby closing state, the padlock operation cannot be performed.

Only when the manual operation member 22 drives the indication member 220 to rotate to the double-split position, the protrusion 252 extends into the sliding slot 220b and moves upward along the sliding slot 220b after the sliding slot 220b is aligned with the protrusion 252, and the padlock member 25 is pulled out.

When the protrusion 252 of the indicator 220 slides out of the chute 220b, the height between the protrusion 252 and the horizontal plane is smaller than the height between the notch of the chute 220b and the horizontal plane.

That is, when the protrusion 252 slides out of the sliding slot 220b, the protrusion 252 is lower than the notch of the sliding slot 220b, so that the protrusion 252 and the sliding slot 220b are not contacted, there is no limit relationship between the padlock member 25 and the indicator 220, and the indicator 220 can be rotated by driving the manual operation member 22 without being limited by the padlock member 25.

On the basis of the foregoing, as shown in fig. 17, the embodiment of the application also discloses an automatic transfer switch, which comprises the mode conversion device according to any one of the above.

The automatic transfer switch includes the same structure and advantageous effects as those of the mode switching device in the foregoing embodiment. The structure and the advantages of the mode switching device have been described in detail in the foregoing embodiments, and are not described herein.

The embodiment of the application also provides electric equipment, wherein the electric equipment is provided with the automatic transfer switch, and the electric equipment can be at least one of the following: distribution box, cable, switch board, motor, switch socket, lamps and lanterns, air conditioner, electric water heater, ammeter, camera, phone, computer etc.. The electric equipment can use the related structure of the automatic transfer switch to realize intelligent management, but the electric equipment is not limited to the electric equipment with the intelligent management, and can also be used in the non-intelligent electric equipment in the traditional industry.

The embodiment of the application also provides electric equipment, the automatic transfer switch is applied to the electric equipment, the electric equipment can be applied to the whole house intelligence, and the electric equipment can be applied to the intelligent home and the Internet of things industry so as to realize the intelligent management of the whole house.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (9)

1. The utility model provides a stop device of automatic change-over switch, automatic change-over switch has at least often to close a floodgate, reserve to close a floodgate, two three kinds of position states of dividing, its characterized in that includes knob (23) and knob locating part that mutually support, knob (23) are used for automatic change-over switch switches between automatic position, manual position and isolation position, knob locating part is used for when automatic change-over switch is in often power closing a floodgate and reserve power closing a floodgate to knob (23) is spacing, in order to with knob (23) restriction is in automatic position or manual position.

2. The limit device of an automatic transfer switch according to claim 1, characterized in that the knob limit member comprises a manual member (22) pivotally arranged in a housing (11), the manual member (22) being linked with an operating mechanism of the automatic transfer switch for connecting a contact device (30), the knob (23) being pivotally arranged on the housing (11).

3. A limit device for an automatic transfer switch according to claim 2, characterized in that the rotation surface of the manual member (22) and the rotation surface of the knob (23) are perpendicular to each other.

4. A limit device for an automatic transfer switch according to claim 2 or 3, characterized in that a limit part is provided on the manual operation member (22), an extension shaft (230) extending into the housing (11) is provided on the knob (23), and the knob (23) is limited by the manual operation member (22) through the abutment of the extension shaft (230) and the limit part.

5. The limit device of an automatic transfer switch according to claim 4, wherein the limit portion includes a first limit stage (22 a) and a second limit stage (22 b) protruding from a first face of the manual operation member (22), and the extension shaft (230) is limited by the first limit stage (22 a) and the second limit stage (22 b), respectively.

6. The limiting device of an automatic transfer switch according to claim 5, wherein when the automatic transfer switch is closed by a common power supply, an inner wall of the first limiting table (22 a) facing the second limiting table (22 b) is abutted against the extension shaft (230) so as to limit the movement of the extension shaft (230) toward the isolation position;

when the automatic transfer switch is switched on by a standby power supply, the outer wall, far away from the first limiting table (22 a), of the second limiting table (22 b) is abutted against the extension shaft (230) so as to limit the extension shaft (230) to move towards the isolation position.

7. The limit device of an automatic transfer switch according to claim 5, wherein the movement locus of the extension shaft (230) is far from the first limit table (22 a) and the second limit table (22 b) when the automatic transfer switch is in a double-split state, so that the knob (23) can be switched at will between the automatic position, the manual position and the isolation position.

8. An automatic transfer switch comprising a limit device of an automatic transfer switch according to any one of claims 1 to 7.

9. A powered device comprising the automatic transfer switch of claim 8.