CN219321207U - Padlock structure for dual-power automatic transfer switch and dual-power automatic transfer switch - Google Patents

Abstract

A padlock mechanism for a dual-power automatic transfer switch and a dual-power automatic transfer switch, the dual-power automatic transfer switch including a housing and a mode selector, the padlock mechanism comprising: a permission member movably provided on the frame, capable of moving between a first position, a second position, and a third position together with the mode selection member under the driving of the mode selection member; and a lock movably disposed on the housing and movable between a concealed position in which the padlock of the lock is positioned within the housing and a padlock position in which at least a portion of the padlock of the lock member is exposed through an opening disposed on the housing, a portion of the license member blocking the lock from moving from the concealed position to the padlock position when the mode selector moves the license member to the first position or the second position, and a portion of the license member driving the lock to move the lock to the padlock position when the mode selector moves the license member to the third position.

Description

Padlock structure for dual-power automatic transfer switch and dual-power automatic transfer switch

Technical Field

The utility model relates to a padlock structure for a dual-power automatic transfer switch and a corresponding dual-power automatic transfer switch.

Background

The dual power automatic transfer switch has an automatic mode and a manual operation mode. When the dual power automatic transfer switch is in the automatic mode, the transfer operation of the dual power automatic transfer switch is automatically performed by its controller or remote control. When the dual-power automatic transfer switch is in a manual operation mode, the automatic operation control circuit is cut off, and a worker operates the dual-power automatic transfer switch through an operation handle.

The dual power automatic transfer switch is also provided with a padlock mode. The padlock function is typically set for equipment maintenance at the load end. That is, if and only if the dual-power automatic transfer switch is in the isolation position of the dual-branch (i.e., OFF state, load end is not associated with any power supply), the dual-power automatic transfer switch can be padlock-mounted, and all transfer operations are invalid before the padlock is removed, thereby ensuring that the load side and the power side of the dual-power automatic transfer switch are always in the electrical isolation state, and ensuring personal safety of maintenance personnel.

Thus, to achieve a safe padlock, it is generally required to have the padlock in a double-split position, depending on the state of the switch, so it is important to correctly indicate the contact position and to achieve the padlock function in conjunction therewith.

Therefore, there is a need for an indicator device that can correctly indicate the position of a contact and an indicator padlock mechanism that can ensure the personal safety of maintenance personnel and that is simpler and more reliable for a dual-power automatic transfer switch.

Disclosure of Invention

In view of the above-mentioned drawbacks and disadvantages, it is an object of the present utility model to at least solve the above-mentioned problems with the prior art. Accordingly, the present utility model provides a padlock arrangement for a dual-powered automatic transfer switch comprising a housing and a mode selection member disposed on the housing and movable between at least a first position, a second position and a third position to select an operational mode of the dual-powered automatic transfer switch, wherein the first position corresponds to a manual mode of the dual-powered automatic transfer switch, the second position corresponds to an automatic mode of the dual-powered automatic transfer switch, the third position corresponds to a padlock mode of the dual-powered automatic transfer switch,

the padlock mechanism includes: a permission member movably provided on the frame, capable of moving between a first position, a second position, and a third position together with the mode selection member under the driving of the mode selection member; and a lock movably disposed on the housing and movable between a concealed position in which the padlock of the lock is positioned within the housing and a padlock position in which at least a portion of the padlock of the locking member is exposed through an opening disposed on the housing, wherein a portion of the licensing member blocks the lock from moving from the concealed position to the padlock position when the mode selector moves the licensing member to the first position or the second position and a portion of the licensing member drives the lock to move to the padlock position when the mode selector moves the licensing member to the third position.

Advantageously, the locking member has a first opening and a second opening, the second opening having a width that is less than the width of the first opening such that a boss is formed between the first opening and the second opening, in either the first position or the second position, the base plate of the permitting member passes through the first opening of the locking member, a portion of the base plate abutting the boss to inhibit movement of the locking member from the concealed position to the padlock position.

Advantageously, the licence member has a drive block extending upwardly from the base plate and a notch provided on the base plate, the drive block of the licence member abutting against an edge of the first opening and the notch being aligned with the boss in the third position such that the drive block moves the lock up and the boss moves up within the notch so that the lock reaches the padlock position.

Advantageously, the lock is mounted to the housing via an elastic member, the driving block of the permitting member overcoming the elastic force of the elastic member when the driving block moves the lock upward, the elastic member being further configured to allow the lock to return from the padlock position to the hidden position when the permitting member moves to the first position or the second position with the mode selection member.

Advantageously, the permitting member further comprises an inclined plate, which connects the drive block and the base plate,

advantageously, the dual power automatic transfer switch includes an operating handle having an opening into which the permitting member is inserted when the operating handle operates the dual power automatic transfer switch to the dual position and the permitting member reaches the third position with the mode selector, thereby preventing operation of the operating handle.

Advantageously, the padlock structure further comprises a blocking member pivotally mounted within the housing of the dual automatic power switch, pivotable under actuation of the spindle of the dual automatic power switch between a blocking position in which the blocking member is in the blocking position when the dual automatic power switch is in the first or second power on position, and a release position in which the blocking member is in the release position in which the blocking member is located in the path of movement of the permitting member, such that the permitting member is blocked from movement with the mode selector member to the third position, and in which the blocking member is pivoted away from the path of movement of the permitting member.

Advantageously, the licence member has a blocked portion, in the blocking position of the blocking member, the blocking member abuts against the blocked portion of the licence member, thereby blocking movement of the licence member.

The utility model also provides a dual-power automatic transfer switch, which comprises the padlock structure.

Drawings

The above and other features and advantages of exemplary embodiments of the present utility model will become more apparent from the following detailed description in conjunction with the accompanying drawings, which are provided for illustrative purposes only and do not limit the scope of the present utility model in any way, wherein:

fig. 1 shows an external perspective view of the dual power automatic transfer switch in a manual mode.

Fig. 2 shows an external perspective view of the dual power automatic transfer switch in an automatic mode.

Fig. 3 shows an external perspective view of the dual power automatic transfer switch in padlock mode with the locking member in padlock position.

Fig. 4 shows an internal perspective view of the dual power automatic transfer switch in manual mode in the double-split position.

Fig. 5 shows an internal perspective view of the dual power automatic transfer switch in an automatic mode in a double-split position.

Fig. 6 shows an internal perspective view of the dual power automatic transfer switch in padlock mode in the double-split position.

Fig. 7 shows an internal perspective view of the locking part of the locking element, on the basis of fig. 6, completely pulled out of the housing of the dual-power automatic transfer switch.

Fig. 8 shows a perspective view of the licensing member of the padlock structure.

Fig. 9 shows a perspective view of the locking member of the padlock arrangement.

Fig. 10 shows an internal perspective view of the dual power automatic transfer switch in manual mode in the non-dual position.

Fig. 11 shows an internal perspective view of the dual power automatic transfer switch in an automatic mode in a non-dual position.

Fig. 12 shows an enlarged view of the blocking member blocked by the blocking member in the view of fig. 11.

Fig. 13 (a) -13 (d) are plan views showing the positional relationship of the stopper and the permitting member in the first power-on position, the second power-on position, the first power-off position, and the second power-off position, respectively.

Detailed Description

Exemplary embodiments of the present utility model will be described below with reference to the accompanying drawings.

The foregoing and other features, aspects and advantages of the present utility model will become more apparent from the following detailed description of the embodiments, read in conjunction with the accompanying drawings. The directional terms mentioned in the following embodiments are, for example: upper, lower, left, right, front or rear, etc., are merely references to the directions of the drawings. Thus, directional terminology is used for the purpose of illustration and is not intended to be limiting of the utility model, and furthermore, like reference numerals refer to like elements throughout the embodiments.

The padlock structure of the dual power automatic transfer switch according to the present utility model is described below with reference to the accompanying drawings.

Fig. 1 shows an external perspective view of the dual power automatic transfer switch in a manual mode. The dual-power automatic transfer switch comprises a shell 1 and a mode selection piece 2, wherein the mode selection piece 2 is arranged on the shell 1 and can move among a first position, a second position and a third position, the first position corresponds to the dual-power automatic transfer switch being in a manual mode, the second position corresponds to the dual-power automatic transfer switch being in an automatic mode, and the third position corresponds to the dual-power automatic transfer switch being in a padlock mode.

In the manual mode shown in fig. 1, the operator can directly pull out the handle 3 for operation. When the mode selector 2 is moved from left to right in the drawing to the second position, as shown in fig. 2, the mode selector 2 covers the handle so that the operator cannot pull out the handle to operate, and at this time, the dual power automatic transfer switch is in the automatic mode. Then, as the mode selector 2 continues to move from left to right in the drawing to the third position, as shown in fig. 3, the dual-power automatic transfer switch is in the padlock mode, at which time at least a portion of the locking portion 411 of the locking member 41 of the padlock structure 4 is exposed through the opening in the housing for being pulled out of the housing by the operator for padlock operation.

Fig. 4 shows an internal perspective view of the dual power automatic transfer switch in manual mode in the double-split position. In addition to the locking member 41, the padlock structure 4 of the dual-power automatic transfer switch also comprises a permit member 42, which is movably arranged on the housing, capable of moving together with the mode selection 2 under the drive of the mode selection member 2. For example, the permitting member 42 may be fixedly mounted to the mode selector 2 so as to be movable together with the mode selector 2. The locking member 41 is movably mounted to the housing, in this example the locking member 41 being vertically movable between a concealed position and a locked position. When the permitting member 42 is in either the first position (i.e., manual mode as shown in fig. 4) or the second position (i.e., automatic mode as shown in fig. 5) with the mode selector 2, a portion of the permitting member 42 abuts against a portion of the locking piece 41 such that the locking piece 41 cannot move upward from the hidden position to the locked position. When the permitting member 42 is in the third position with the mode selector (i.e. padlock mode as shown in fig. 6), the permitting member 42 does not block upward movement of the lock 41 and drives the lock 41 from the hidden position to the locked position.

Specifically, as shown in fig. 8, the permitting member 42 has a base plate 421 and a driving block 422 extending upward from the base plate 421, and the permitting member further includes an inclined plate 425 that connects the driving block 422 and the base plate 421, the inclined plate 425 functioning to guide the movement of the permitting member. As shown in fig. 9, the locking member 41 has a first opening 412 and a second opening 413, and a width W1 of the first opening 412 (i.e., a distance between both sidewalls of the first opening shown in fig. 9) is greater than a width W2 of the second opening 413 (i.e., a distance between both sidewalls of the second opening shown in fig. 9) such that a boss 414 is formed between the first opening and the second opening. In the first and second positions, the permitting member 42 passes through the first opening 412 and a portion of the base plate 421 abuts against the boss 414 so that the lock 41 cannot move upward. The permitting member 42 also includes a notch 423 provided on the base plate 421, in a third position the permitting member 42 is moved such that the boss 414 is aligned with the notch 423 and the drive block 422 abuts against the upper edge of the first opening 413 (as shown in fig. 6), which causes the lock 41 to move upwardly under the urging of the drive block 422 and the boss 414 to move within the notch 423 so that the lock 41 moves to the locked position, a portion of the lock 411 being exposed from the housing for an operator to pull out the lock (as shown in fig. 7) for padlock operation.

The locking member 41 further includes a hooking portion 415, and one end of the elastic member 43 is hooked on the hooking portion 415 and the other end is mounted into the housing such that the locking member 41 is mounted into the housing via the elastic member 43. In this example, the elastic member 43 is in the form of a spring, and the elastic member 43 is stretched when the locking member 41 is driven to move upward by the driving block 422. When a portion of the locking member 41 is exposed to the housing so that the operator further pulls the locking portion completely out of the housing, the elastic member 43 is further stretched. When the permitting member 42 is moved away from the third position, the locking piece 41 is returned to the hidden position by the elastic piece 43.

In addition, the operating handle 3 of the dual power automatic transfer switch has an opening 31, and when the dual power automatic transfer switch is in the dual position and the permitting member 42 reaches the third position with the mode selector, as shown in fig. 6, the permitting member 42 is inserted into the opening 31, thereby preventing the operation of the operating handle.

Fig. 10 and 11 show internal perspective views of the dual power automatic transfer switch in manual mode and in automatic mode, respectively, in a non-dual position (i.e., first power on position or second power on position).

The padlock structure 4 also includes a blocking member 44 pivotally mounted within the housing, capable of pivoting between a blocking position and a release position upon actuation of the main shaft of the dual power automatic transfer switch. In the non-bifurcating position, when the dual-power automatic transfer switch is in the manual mode or the automatic mode, the blocking member 44 is in the blocking position, and at this time, the blocking member 44 is on the moving path of the permitting member 42, so that the permitting member 42 can be blocked from moving to the third position under the driving of the mode selector. When the dual power automatic transfer switch is in the dual position (as shown in fig. 4-7), the blocking member 44 is in the release position, at which point the blocking member pivots away from the path of movement of the permitting member 42 so that the permitting member 42 can be moved to the third position by the mode selector. The licensing member 42 has a blocked portion 424 that advantageously extends downwardly from the base plate 421, a portion of which is capable of abutting the blocked portion 424 of the licensing member when the blocking position of the blocking member is preferably and the licensing member is moved to the second position, thereby blocking the licensing member from moving to the third position, as shown in fig. 11 and 12.

Fig. 4 to 7 show the process of moving the locking member 41 of the padlock structure from the hidden position to the padlock position and eventually pulled out by the operator when the dual power automatic transfer switch is in the double-split position.

As shown in fig. 4, the dual automatic power transfer switch is in the manual mode, and at this time, the operator can operate the operation handle 3 of the dual automatic power transfer switch to operate the dual automatic power transfer switch. At this time, the mode selector is in the first position along with the licensing member.

The mode selector is moved to the second position together with the permitting member, at which time the operating handle 3 is blocked by the mode selector and the dual power automatic transfer switch is in the automatic mode, as shown in fig. 5.

Since the dual power automatic transfer switch is in the dual position, the blocking member 44 is in the release position and does not block movement of the permitting member 42. At this time, as the mode selector moves to the third position together with the permitting member, the driving block 422 of the permitting member 42 abuts against the lock 41 and pushes the lock 41 upward to move a part of the locking portion 411 of the lock 41 from the hidden position to the padlock position, as shown in fig. 6. Subsequently, the operator pulls the locking portion 411 completely out of the housing against the action of the elastic member 43 to perform a padlock operation, as shown in fig. 7.

Fig. 13 (a) to 13 (d) are plan views showing the positional relationship between the stopper 44 and the permitting member 42 in the first power-on position, the second power-on position, the first power-off position, and the second power-off position, respectively. As can be seen in the figures, the blocking member 44 is in the blocking position in fig. 13 (a) and 13 (b), and the blocking member 44 is in the release position in fig. 13 (c) and 13 (d).

Through the padlock structure of this application, guaranteed to just can carry out the padlock in bipartite position, guaranteed maintenance personal's personal safety. The cooperation of the permitting component and the locking piece is adopted, so that the position of the padlock is irrelevant to the shell, and the reliability of the padlock is enhanced. The engagement of the permitting member and the locking member is such that the locking member can only be pulled out in the padlock position without affecting the function of the mode selector even if it is broken. The locking member can only be pulled out in the padlock position, which also makes the design of the mode selector more flexible.

Although the utility model has been described in the specification and illustrated in the accompanying drawings on the basis of various embodiments, it will be understood by those skilled in the art that the above embodiments are merely preferred implementations, and that certain technical features in the embodiments may not be necessary to solve a particular technical problem so that these technical features may be omitted or omitted without affecting the solution of the technical problem or the formation of the technical solution; furthermore, the features, elements, and/or functions of one embodiment may be combined, or otherwise matched as appropriate with the features, elements, and/or functions of other one or more embodiments, unless such combination, or match is clearly impractical.

Claims (9)

1. A padlock structure for a dual-power automatic transfer switch comprising a housing and a mode selection member disposed on the housing and movable between at least a first position corresponding to a manual mode of the dual-power automatic transfer switch, a second position corresponding to an automatic mode of the dual-power automatic transfer switch, and a third position corresponding to a padlock mode of the dual-power automatic transfer switch,

the padlock is characterized in that the padlock structure comprises:

a permission member movably provided on the frame, capable of moving between a first position, a second position, and a third position together with the mode selection member under the driving of the mode selection member;

a locking member movably disposed on the housing and movable between a concealed position in which the padlock portion of the locking member is positioned within the housing and a padlock position in which at least a portion of the padlock portion of the locking member is exposed through an opening disposed in the housing,

when the mode selector drives the permission member to the first position or the second position, a part of the permission member blocks the locking piece to enable the locking piece to be unable to move from the hiding position to the padlock position, and when the mode selector drives the permission member to the third position, a part of the permission member drives the locking piece to enable the locking piece to move to the padlock position.

2. The padlock structure of claim 1, wherein the locking member has a first opening and a second opening, the second opening having a width that is less than the width of the first opening such that a boss is formed between the first opening and the second opening, the base of the permitting member passing through the first opening of the locking member in either the first position or the second position, a portion of the base abutting the boss to prevent movement of the locking member from the concealed position to the padlock position.

3. The padlock arrangement of claim 2, wherein the permitting member has a drive block extending upwardly from the base plate and a notch disposed in the base plate, the drive block of the permitting member abutting an edge of the first opening and the notch being aligned with the boss in the third position such that the drive block moves the locking member upwardly and the boss moves upwardly within the notch such that the locking member reaches the padlock position.

4. The padlock structure of claim 3, wherein the locking member is mounted to the housing via an elastic member, the driving block of the permitting member overcoming an elastic force of the elastic member when the driving block moves the locking member upward, the elastic member further configured to allow the locking member to return from the padlock position to the hidden position when the permitting member moves to the first position or the second position with the mode selection member.

5. The padlock structure of claim 3, wherein the permit member further comprises a sloped plate connecting the drive block and the base plate.

6. The padlock structure of claim 1, wherein the dual power automatic transfer switch includes an operating handle having an opening, the permit member being inserted into the opening when the operating handle operates the dual power automatic transfer switch in the double-split position and the permit member reaches the third position with the mode selector, thereby preventing operation of the operating handle.

7. The padlock structure of claim 1, further comprising a blocking member pivotally mounted within the housing of the dual automatic power switch, the blocking member being pivotable between a blocking position and a release position upon actuation of the spindle of the dual automatic power switch, the blocking member being in the blocking position when the dual automatic power switch is in the first power on position or the second power on position, the blocking member being in the release position when the dual automatic power switch is in the dual position, the blocking member being in the path of movement of the permitting member such that the permitting member is blocked from moving with the mode selector to the third position, the blocking member being pivoted away from the path of movement of the permitting member in the release position.

8. The padlock structure of claim 7, wherein the permit member has a blocked portion, and in the blocking position of the blocking member, the blocking member abuts the blocked portion of the permit member to block movement of the permit member.

9. A dual-power automatic transfer switch, characterized in that it comprises a padlock structure according to any one of claims 1 to 8.

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