CN217468241U - Dual-power transfer switch capable of interlocking with unlocking and locking mechanism - Google Patents

Abstract

The utility model provides a double power transfer switch which can unlock and lock the mechanism in linkage, comprising a shell, a cover body connected with the shell, a bracket arranged in the shell, a motion conversion mechanism and a locking mechanism; the inner wall of the cover body is provided with a mandril; the motion conversion mechanism comprises a first annular body, and a lug is arranged on the outer side wall of the first annular body; the locking mechanism comprises a first limiting piece and a second limiting piece which are arranged on two sides of the protruding block and hinged to the support, and a trigger rod matched with the ejector rod extends from the middle of the first limiting piece to the direction far away from the protruding block; the end face of the first limiting part, which is close to the bump, is provided with a wane extending to the second limiting part, and the bottom of the second limiting part is provided with a fastening surface matched with the wane. Compare in current change over switch, the utility model discloses a change over switch is after the lid is closed to the casing, and it can drive first locating part unblock, and first locating part can link and drive the unblock of second locating part, and need not to set up other control switch, compact structure, and stability in use is strong.

Description

Dual-power transfer switch capable of interlocking with unlocking and locking mechanism

Technical Field

The utility model relates to a dual power switch technical field, concretely relates to can link dual power change over switch of unblock locking mechanical system.

Background

The dual-power switch electric appliance adopts a power supply mode that the main power supply and the standby power supply are operated in a split mode, so that when one path of power supply fails and is powered off, the other path of power supply can be immediately put into use, and the continuity of power supply is guaranteed. The existing dual-power transfer switch generally comprises an automatic driving mechanism, a manual driving mechanism, a motion conversion mechanism and a locking mechanism. The automatic driving mechanism can automatically switch a common power supply and a standby power supply, so that power supply conversion is realized; the manual drive mechanism may be used to switch power when the automatic drive mechanism fails. The automatic driving mechanism and the manual driving mechanism are used for switching the power supply by driving the motion conversion mechanism to rotate. The locking mechanism is used for locking or unlocking the motion conversion mechanism in the process of switching the power supply.

In the case of automatically switching the power supply, the dual power supply changeover switch having the lock mechanism first releases the lock of the motion conversion mechanism, so that the automatic drive mechanism can drive the motion conversion mechanism to rotate. For example, chinese patent "CN 101395685B" discloses an automatic control module for an electric circuit breaker and an electric circuit breaker equipped with the same, wherein the cover is further coupled to a microswitch controlled by a projecting pin, so that in an automatic mode, the control module is prevented from operating as long as the cover is opened. In the structure, the control module is controlled by controlling the micro switch, and compared with a mechanical transmission control mode, the control mode disclosed by the above method has delay and inaccuracy when the cover body is closed, the control process is more unstable than the mechanical transmission control mode, the use effect is poor, in addition, the number of parts is more, the structure is complex, and the reliability is poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the structure of the unlocking motion conversion mechanism is poor in stability when the existing dual-power transfer switch in the background technology is used for automatically switching power supplies, the utility model provides a dual-power transfer switch which can be used for interlocking the unlocking locking mechanism, the ejector rod and the trigger rod are matched with each other between the rocker and the buckling surface, so that after the cover body is closed on the shell, the cover body can drive the first limiting part to unlock, the first limiting part can drive the second limiting part to unlock in an interlocking manner, and other control switches are not needed to be arranged, thereby reducing the cost; in addition, the structure is compact, and the use stability is strong.

In order to achieve the above object, the technical solution of the present invention is as follows.

A dual-power transfer switch capable of unlocking and locking a mechanism in a linkage manner comprises a shell, a cover body connected with the shell, a bracket arranged in the shell, a motion conversion mechanism and a locking mechanism;

the inner wall of the cover body is provided with a mandril; the motion conversion mechanism comprises a first annular body, and a lug is arranged on the outer side wall of the first annular body; locking mechanical system is including articulating first locating part and the second locating part on the support, its characterized in that:

when the cover body is in an open state, the opposite end surfaces of the first limiting piece and the second limiting piece are respectively in locking fit with the left side and the right side of the lug;

the first limiting part extends from the middle part of the first limiting part to a direction far away from the convex block, and the ejector rod presses the trigger rod so as to tilt the end face of the first limiting part to enable the end face to be separated from locking the convex block in a state that the cover body is covered on the shell;

the end face, close to the convex block, of the first limiting part is provided with a warping plate, the bottom of the second limiting part is provided with a buckling face, the warping plate extends to the lower portion of the buckling face, and the end face of the second limiting part is lifted in a linkage mode under the pressing of the ejector rod to be separated from the locking of the convex block.

Further, still include an unlocking piece, unlocking piece includes transmission pole and pressure board face, covers under the state of casing at the lid, the ejector pin is leaned on in the top of transmission pole, the trigger lever top is leaned on the pressure board face.

Furthermore, a second through hole is formed in the top of the shell and matched with the transfer rod.

Further, the unlocking piece is provided with a first guide rail, the shell is provided with a second guide rail, and the first guide rail is matched with the second guide rail.

Further, still include an elasticity piece that resets, elasticity resets and is connected with unlocking piece and casing, and under the state of lid and casing separation, elasticity resets and makes the pressure plate face and the tendency that the trigger bar has mutual separation.

Furthermore, the bottom of the unlocking piece is provided with a connecting hole for connecting the elastic resetting piece.

The upper shell is hinged with the cover body.

The dual-power transfer switch further comprises a manual driving mechanism, wherein the manual driving mechanism comprises a first rotating part, a first inner cavity is formed in the middle of the first rotating part, and a second inner cavity is formed in the middle of the first annular body; the first rotating piece and the first annular body are coaxially arranged and are mutually connected, and the first inner cavity and the second inner cavity form an accommodating cavity; a first torsion spring is arranged in the accommodating cavity, and two ends of the first torsion spring are respectively connected with the first rotating piece and the first annular body;

a second annular body is arranged on the end face of the first rotating piece, and a first jacking block and a fourth jacking block which are arranged in a layered mode are arranged on the second annular body; the first top block is matched with the first limiting piece, and the fourth top block is matched with the second limiting piece; the bottom of the first limiting part is provided with a first yielding groove arranged on the same layer as the fourth top block, and the bottom of the second limiting part is provided with a second yielding groove arranged on the same layer as the first top block.

Furthermore, the bottom surface of the second receding groove is a buckling surface.

Compare with current dual supply change over switch's locking mechanical system, the utility model discloses a dual supply change over switch's beneficial effect does: when the anti-rotation device is used, the ejector rod of the cover body applies acting force to the trigger rod of the first limiting part, the first limiting part rotates, so that the bottom of the first limiting part ejects out of the top surface of the lug, and the rotation limitation of the first limiting part on the lug is further removed; in the process of rotating the first limiting piece, the wane of the first limiting piece lifts the buckling surface of the second limiting piece, so that the bottom of the second limiting piece is ejected out of the top surface of the lug, and the rotation limitation of the second limiting piece on the lug is removed. In the structure, the ejector rod of the cover body is matched with the trigger rod of the first limiting part and the buckling surface of the wane of the first limiting part and the second limiting part, so that the cover body can drive the first limiting part to unlock after being closed on the shell, the first limiting part can drive the second limiting part to unlock in a linkage manner, other control switches are not needed, and the cost is reduced; in addition, the structure is compact, and the use stability is strong.

Drawings

Fig. 1 is an exploded perspective view of a dual power transfer switch according to the present invention;

FIG. 2 is a perspective view of a bracket;

FIG. 3 is an assembly view of the limiting member, the first annular body and the bracket;

FIG. 4 is a perspective view of a first stop;

FIG. 5 is a perspective view of the first limiting member from another direction;

FIG. 6 is a perspective view of a second stop;

FIG. 7 is a perspective view of another direction of the second limiting member;

FIG. 8 is a perspective view of the cover;

FIG. 9 is a perspective view of the unlocking member;

FIG. 10 is another perspective view of the unlocking member;

FIG. 11 is a perspective view of the upper shell;

FIG. 12 is a top view of the lower shell;

FIG. 13 is an exploded perspective view of the driven gear, motion conversion mechanism, limiting member and bracket;

FIG. 14 is a perspective view of the driven gear;

FIG. 15 is a top view of the driven gear;

FIGS. 16 a-16 c are schematic diagrams of the state when the power supply is at the 0 bit;

FIGS. 17 a-17 c are schematic diagrams of the power supply in the I-bit state;

FIGS. 18 a-18 c are schematic diagrams of the power supply in position II;

FIG. 19 is a front view of the linkage;

1. a manual drive mechanism; 11. a driving gear; 111. a shaft cylinder; 12. a driven gear; 121. a second annular body; 1211. top block; 1211a, a first top block; 1211b. a second top block; 1211. third top block; 1211d, a fourth top block; 122. a first lumen;

2. a motion conversion mechanism; 21. a first annular body; 211. a bump; 212. a limiting groove; 212a, a first retaining groove; 212b. a second limiting groove; 22. a motion conversion mechanism body;

3. an automatic drive mechanism;

4. a locking mechanism; 41. a limiting member; 42. a first limit piece; 421. a first hinge shaft; 422. a first escape block; 423. a first abdicating groove; 424. a first stopper; 425. a trigger lever; 426. a seesaw; 43 a second limiting piece; 431. a second hinge shaft; 432. a second abdicating groove; 433. a second escape block; 434. a second limiting block; 435. buckling surfaces; 44. a second torsion spring;

5. a housing; 51. an upper shell; 511. a second through hole; 52. a lower case; 521. a second guide rail; 53. a cover body; 531. a top rod;

6. a support; 61. a first through hole; 62. connecting columns; 63. a hinge hole;

7. unlocking the lock; 71. a transfer lever; 72. pressing the board surface; 73. a first guide rail; 74. connecting holes;

8. a first torsion spring;

a plane A; and a plane B.

Detailed Description

In the description of the present invention, it is to be understood that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The technical solution of the present invention will be further explained with reference to fig. 2-18.

Example 1

A dual power transfer switch capable of interlocking unlocking and locking a locking mechanism is shown in fig. 1, and comprises a housing 5, and a manual driving mechanism 1, a motion conversion mechanism 2, an automatic driving mechanism 3, a locking mechanism 4 and a circuit switching device (not shown) which are arranged in the housing. The manual driving mechanism 1 and the automatic driving mechanism 3 can both drive the motion conversion mechanism 2 to rotate, and further drive the circuit switching device to rotate so as to complete circuit switching, and the locking mechanism 4 can limit or unlock the rotation of the motion conversion mechanism 2. The housing 5 includes an upper housing 51 and a lower housing 52 that are screwed to each other, the upper housing 51 is hinged to a cover 53, the above connection relationship may be other common connection manners, and the structure of the automatic driving mechanism 3 for driving the motion conversion mechanism 2 to rotate may adopt a common structure in the art, which is not described herein again.

As with a conventional dual power transfer switch, the lock mechanism 4 of the dual power transfer switch of the present embodiment releases the rotation restriction of the motion conversion mechanism 2 when the power supply is automatically switched, which will be described below. After the motion conversion mechanism 2 releases the rotation restriction, the rotation process thereof can be divided into: when not rotating, it is at 0 bit; the power source can be in a first power position (i position) when rotated in a first direction (clockwise in fig. 1), and can be in a second power position (ii position) when rotated in a second direction (counterclockwise in fig. 1), i.e., the power source can be switched to a normal power source or a standby power source.

In the state of automatically switching the power supply, the lock mechanism 4 releases the rotation restriction of the motion conversion mechanism 2 more specifically:

fig. 2 is a structural schematic of the stent 6, which is disposed in the inner cavity of the inferior shell 52. The overall structure of the support 6 is square, a first through hole 61 is arranged in the middle of the support 6, a connecting column 62 is arranged in the middle of the support 6 close to the top of the support, and hinge holes 63 are respectively arranged on two sides of the connecting column 62. As shown in fig. 1, the motion conversion mechanism 2 includes a first ring body 21 and a motion conversion mechanism body 22, which are coaxially disposed and relatively fixed when assembled. The first ring 21 is disposed in the first through hole 61, and can rotate along the first through hole 61, and when the first ring 21 rotates, the motion conversion mechanism body 22 is driven to rotate in the same direction. The outer side wall of the first annular body 21 is provided with a protrusion 211. As shown in fig. 3 to 7, the locking mechanism 4 includes two limiting members 41, namely a first limiting member 42 and a second limiting member 43, and in the state where the power supply is at the 0 position, opposite end surfaces of the first limiting member 42 and the second limiting member 43 are located at left and right sides of the protruding block 211, so that the protruding block 211 can be locked to limit the rotation of the first annular body 21. The first limiting member 42 and the second limiting member 43 are both provided with a hinge shaft, which is a first hinge shaft 421 and a second hinge shaft 431, and the first hinge shaft 421 and the second hinge shaft 431 are hinged in the hinge hole 63, so that when the first limiting member 42 and/or the second limiting member 43 are rotated, the first limiting member 42 and/or the second limiting member 43 are/is pushed out of the top of the protrusion 211, so as to unlock the protrusion 211, and the rotation limitation of the first annular body 21 is removed.

As shown in fig. 4-7, the first position-limiting member 42 has a trigger bar 425 extending along a middle portion thereof in a direction away from the protrusion 211, in addition, a tilting plate 426 extending to the second position-limiting member 43 is disposed on an end surface of the first position-limiting member 42 close to the protrusion 211, and a fastening surface 435 engaged with the tilting plate 426 is disposed at a bottom portion of the second position-limiting member 43. As shown in fig. 1 and 8, a push rod 531 is provided on the inner wall of the lid 53, and the trigger lever 425 is provided corresponding to the push rod 531. An unlocking piece 7 is arranged between the trigger rod 425 and the top rod 531, and the unlocking piece 7 is slidably connected to the lower shell 52 and can slide up and down in the vertical direction. As shown in fig. 9-10, the unlocking member 7 includes a transfer rod 71 and a platen surface 72; the transfer rod 71 is vertically arranged, and the top surface of the transfer rod is matched with the top rod 531; the platen face 72 is horizontally disposed and cooperates with the trigger bar 425. In the process of closing the cover 53 on the upper shell 51, the top rod 531 of the cover 53 presses down the transmission rod 71 of the unlocking piece 7 to move the unlocking piece 7 downward, and in the process of moving the unlocking piece 7 downward, the pressing plate surface 72 presses down the trigger rod 425 of the first limiting piece 42, so that the first limiting piece 42 rotates to push the first limiting piece 42 out of the top surface of the protrusion 211, thereby unlocking the rotation limitation of the protrusion 211 by the first limiting piece 42. In the process of rotating the first position-limiting member 42, the tilting plate 426 lifts the fastening surface 435 of the second position-limiting member 43, so that the second position-limiting member 43 is pushed out of the top surface of the protrusion 211, so as to unlock the rotation limitation of the second position-limiting member 43 to the protrusion 211. In the above structure, the cover 53 is closed on the upper shell 51, the top rod 531 of the cover 53 drives the first limiting member 42 and the second limiting member 43 to rotate in a linkage manner through the unlocking member 7, so as to unlock the protrusion 211, and the automatic driving mechanism 3 can drive the motion conversion mechanism 2 to rotate to switch the power supply in the automatic driving process. Each structure is simple, the connection is compact, and the stability in the using process is ensured.

In the above structure, it can be understood that, in order to ensure that the transmission rod 71 of the unlocking member 7 can pass through the upper shell 51, the upper shell 51 is provided with a second through hole 511 (as shown in fig. 11) through which the transmission rod 71 passes, so that the transmission rod 71 can be exposed outside the upper shell 51, and after the cover 53 is closed on the upper shell 51, the top rod 531 of the cover 53 can drive the unlocking member 7 to move downward. The transfer rod 71 is not only vertically arranged, but also the press plate surface 72 is not only horizontally arranged, and the transmission function is not affected when the transfer rod is arranged. It should be noted that the cover 53 and the first limiting member 42 can be directly engaged with each other without providing the unlocking member 7, and if the triggering rod 425 of the first limiting member 42 is tilted upward, the top bar 531 of the cover can contact the triggering rod 425. When the cover 53 is closed to the upper shell 51, the first limiting member 42 can be pressed down.

As shown in fig. 9 to 10, the unlocking member 7 is provided with a first guide rail 73 arranged in a vertical direction, and as shown in fig. 11, the lower case 52 is provided with a second guide rail 521 engaged with the first guide rail 73, so that the unlocking member 7 can move up and down by the first guide rail 73 and the second guide rail 521.

In order to ensure that the stop 41 limits the movement of the projection 211 when the cover 53 is opened, the unlocking element 7 and the housing 5 are provided with a connecting elastic return element (not shown) having a tendency to separate the unlocking element 7 and the first stop 42 from each other, which may preferably be a tension spring. As shown in fig. 9, the bottom of the unlocking member 7 is provided with a coupling hole 74 to which the elastic restoring member is coupled. In addition, the connecting column 62 is provided with a second torsion spring 44 which makes the first limiting member 42 and the second limiting member 43 tend to lock the protrusion 211. When the cover 53 is closed on the upper shell 51, the unlocking member 7 moves downward, the first limiting member 42 and the second limiting member 43 release the movement limitation of the protrusion 211, and the elastic restoring member is in a stretching state. When the cover 53 is opened, the unlocking member 7 moves upward under the action of the elastic potential energy of the elastic resetting member, at this time, the pressing plate surface 72 of the unlocking member 7 is separated from the trigger lever 425, and under the action of the elastic resetting member, the first limiting member 42 and the second limiting member 43 are positioned on both sides of the protrusion 211 again, and the bottom of the first limiting member contacts with the outer side wall of the first annular body 21, so that the movement of the protrusion 211 is limited.

When the dual power supply changeover switch is used, the cover body 53 is closed on the upper shell 51 in an automatically driven state, the top rod 531 of the cover body 53 presses down the transmission rod 71 of the unlocking piece 7 to enable the unlocking piece 7 to move downwards, and in the process of downward movement of the unlocking piece 7, the pressing plate surface 72 presses down the trigger rod 425 of the first limiting piece 42, so that the first limiting piece 42 rotates to push the first limiting piece 42 out of the top surface of the lug 211, and the rotation limitation of the first limiting piece 42 on the lug 211 is unlocked. In the process of rotating the first limiting member 42, the tilting plate 426 lifts the fastening surface 435 of the second limiting member 43, so that the second limiting member 43 is pushed out of the top surface of the protrusion 211, so as to unlock the rotation limitation of the protrusion 211 by the second limiting member 42, i.e. to release the rotation limitation of the first ring body 21 (motion conversion mechanism 2). And then the automatic driving mechanism 3 is started to drive the motion conversion mechanism 2 to rotate, so that the switching of the power supply is realized. In the above process, the second torsion spring 44 is stretched. After the cover 53 is opened, the unlocking member 7 moves upward under the action of the elastic potential energy of the elastic resetting member, at this time, the pressing plate surface 72 of the unlocking member 7 is separated from the trigger rod 425, and under the action of the second torsion spring 44, the first limiting member 42 and the second limiting member 43 are positioned on both sides of the protrusion 211 again, and the bottoms thereof are in contact with the outer side wall of the first ring body 21, so that the movement of the protrusion 211, that is, the rotation of the first ring body 21 (the movement conversion mechanism 2) is limited.

Example 2

The present embodiment differs from embodiment 1 in comparison with embodiment 1 in that: embodiment 1 provides an unlocking structure in an automatic driving state, while the present embodiment provides an unlocking structure in a manual driving state, and the structure of the present embodiment is further explained on the basis of embodiment 1. It will be appreciated that in the manually actuated state, the cover 53 is opened at all times and the movement of the protrusion 211 is limited by the first and second limiting members 42, 43.

As shown in fig. 1 and 12, the manual driving mechanism 1 includes a first rotating member horizontally disposed and a second rotating member vertically disposed, the first rotating member is a driven gear 12, the second rotating member is a driving gear 11, and the driving gear 11 and the driven gear 12 are engaged with each other. The driving gear 11 is provided with a shaft tube 111. The user can use a wrench to engage the shaft tube 111 to rotate the driving gear 11 and thus the driven gear 12. In addition, the driven gear 12 is disposed coaxially with the first annular body 21, a first inner cavity 122 is further disposed at a middle position of the driven gear 12, a second inner cavity (not shown) is disposed at a middle position of the first annular body 21, when the driven gear 12 is connected with the first annular body 21, the first inner cavity 122 and the second inner cavity form a containing cavity, a first torsion spring 8 is disposed in the containing cavity, and two ends of the first torsion spring 8 are respectively connected with the driven gear 12 and the first annular body 21. When the device is used, a user rotates the driving gear 11 to drive the driven gear 12 to rotate, and the driven gear 12 drives the motion conversion mechanism 2 to rotate through the first torsion spring 8.

As shown in fig. 13-14, the driven gear 12 is provided with a second annular body 121 on an end surface thereof near the first annular body 21, and the second annular body 121 is provided with four top blocks 1211 arranged at intervals and in layers, namely a first top block 1211a, a second top block 1211b, a third top block 1211c and a fourth top block 1211d. Referring to fig. 2-3, the first top block 1211a and the second top block 1211b are disposed near the second position-limiting member 43, and the third top block 1211c and the fourth top block 1211d are disposed near the first position-limiting member 42. As shown in fig. 15, the first and third top blocks 1211a and 1211c are disposed on the side close to the end surface of the driven gear 12 and on the same plane a, and when in use, the first or third top block 1211a or 1211c engages with the first stopper 42, so as to lift the first stopper 42, and thus to release the restriction of the movement of the first ring body 21, i.e., the restriction of the rotation of the movement conversion mechanism 2. The second top block 1211B and the fourth top block 1211d are provided on the side of the end surface away from the driven gear 12 and are located on the same plane B, and when in use, the second top block 1211B or the fourth top block 1211d is engaged with the second stopper 43, so that the second stopper 43 can be lifted up, and the motion restriction of the first ring body 21, that is, the rotation restriction of the motion conversion mechanism 2, can be released. In the above structure, the first top block 1211a is disposed on the side of the second limiting member 43 (i.e., the side away from the first limiting member 42), and the fourth top block 1211d is disposed on the side of the first limiting member 42 (i.e., the side away from the second limiting member 43), so that the driven gear 12 has a larger rotation range to realize power switching.

The specific steps of lifting the stopper 41 by the top 1211 to release the motion restriction on the protrusion 211 are as follows: the bottom of the limiting member 41 crosses the outer sidewalls of the first annular body 21 and the second annular body 121, and more specifically, as shown in fig. 4 to 7, a first yielding block 422 and a first yielding groove 423 are disposed at a position of the bottom of the first limiting member 42 opposite to the second annular body 121, the first yielding block 422 and the first yielding groove 423 are sequentially disposed from the driven gear 12 to the first annular body 21, and when in use, the first yielding block 422 is matched with the first top block 1211a or the third top block 1211c. The bottom of the second limiting member 43 is provided with a second yielding groove 432 and a second yielding block 433 at a position opposite to the second annular body 121, the second yielding groove 432 and the second yielding block 433 are sequentially arranged from the driven gear 12 to the first annular body 21, and when the device is used, the second yielding block 433 is matched with the second top block 1211b or the fourth top block 1211d. During assembly, the center positions of the first yielding block 422 and the second yielding groove 432 are located on the surface a, and the first yielding groove 423 and the second yielding block 433 are located on the surface B. When the power supply is turned from 0 to i, as shown in fig. 16a-c, the first limiting member 42 and the second limiting member 43 lock the protrusion 211 to prevent the first ring 21 from rotating, and when the driving gear 11 is rotated clockwise, the driven gear 12 rotates counterclockwise, and due to the locking effect of the first limiting member 42 and the second limiting member 43, the first ring 21 does not rotate at this time; the driven gear 12 compresses the first torsion spring 8 during rotation, and at the same time, the first top block 1211a rotates through the second abdicating groove 432 to the first abdicating block 422, in this process, because the second abdicating groove 432 provides abdicating (avoiding interference) for the first top block 1211a, the first top block 1211a cannot lift the second limiting member 43 to remove the rotation limitation of the second limiting member 43 to the protruding block 211; when the first pushing block 1211a rotates to the first yielding block 422 and gradually lifts the first yielding block 422, so that the first yielding block 422 is higher than the protrusion 211, at this time, the first limiting member 42 releases the rotation limitation on the protrusion 211, i.e., the rotation limitation on the first annular body 21, and the first annular body 21 rotates counterclockwise under the action of the elastic potential energy of the first torsion spring 8, so as to drive the motion conversion mechanism body 22 to rotate until the power supply is at the i position (the state diagram when the power supply is at the i position is shown in fig. 17 a-c). Similarly, when the power supply is switched from 0 bit to II bit, the process is as follows: the driving gear 11 is rotated counterclockwise, the driven gear 12 rotates clockwise, and during the rotation, the first torsion spring 8 is compressed, and meanwhile, the fourth top block 1211d rotates through the first abdicating groove 423 to the second abdicating block 433; when the fourth top block 1211d rotates to the second clearance block 433 and gradually lifts the second clearance block 433, the second clearance block 433 is higher than the protrusion 211, at this time, the second limiting member 43 releases the rotation limitation on the protrusion 211, that is, the rotation limitation on the first annular body 21 is released, and the first annular body 21 rotates clockwise under the action of the first torsion spring elastic potential energy, so as to drive the transmission disc and the indicator wheel to rotate until the power source is located at position ii (the state diagram when the power source is located at position ii is shown in fig. 18 a-c).

In the above structure, the bottom surface of the second receding groove 432 is the fastening surface 435, when the first top block 1211a rotates through the second receding groove 432, the first limiting member 42 is ejected out of the top surface of the protrusion 211 under the action of the first top block 1211a, and in this process, the tilting plate 426 of the second limiting member 43 does not lift the fastening surface 435. It should be noted that the second avoiding groove 432 has a sufficient depth, and at the same time, in the manual operation state, the rotation angle of the tilting plate 426 along with the first limiting member 42 is smaller than that in the automatic operation state, so that the second avoiding groove 432 can avoid the first top block 1121a in the manual state and can be lifted by the tilting plate 426 in the automatic state.

As shown in fig. 19, the outer sidewall of the first annular body 21 and the two sides of the protrusion 211 are respectively provided with a first limiting groove 212a and a second limiting groove 212b, and the first limiting groove 212a and the second limiting groove 212b are symmetrically disposed about the protrusion 211. As shown in fig. 4-7, the first avoiding groove 423 extends toward a side close to the first annular body 21 to form a first limiting block 424 adapted to the first limiting groove 212a, and the second avoiding block 433 extends toward a side close to the first annular body 21 to form a second limiting block 434 adapted to the second limiting groove 212b. In the process of rotating the power supply from the 0 position to the i position, when the first limiting member 42 releases the limitation on the protrusion 211, the first annular body 21 rotates counterclockwise under the action of the first torsion spring 8, and in the process of rotating the first annular body 21, the first limiting member 42 and the second limiting member 43 abut against the outer side wall of the first annular body 21 under the action of the second torsion spring 44. When the first annular body 21 rotates by a certain angle, the second limit block 434 is clamped in the second limit groove 212b to stop the rotation of the first annular body 21 (see fig. 17b for a state diagram). When the power supply is restored to 0 position from the I position, the driving gear 11 is rotated clockwise, the driven gear 12 rotates counterclockwise, the first torsion spring 8 is compressed in the rotating process, and meanwhile, the second top block 1211b rotates to pass through the first abdicating groove 423 to reach the second abdicating block 433; when the second top block 1211b rotates to the second clearance block 433 and gradually lifts the second clearance block 433, so that the second limit block 434 is higher than the second limit groove 212b, the second limit block 434 releases the rotation limitation of the second limit groove 212b, that is, the second limit member 43 releases the rotation limitation of the first annular body 21, and the first annular body 21 rotates counterclockwise under the action of the elastic potential energy of the first torsion spring 8 until the protrusion 211 is clamped between the first limit member 42 and the second limit member 43. Similarly, when the power source rotates from the 0 position to the ii position, the second limiting member 43 releases the limitation on the protrusion 211, so that the first annular body 21 rotates until the first limiting member 424 is engaged in the first limiting groove 212a (see fig. 18 b). When the power supply rotates from the second position to the 0 position, the third top 1211c of the driven gear 12 rotates through the second yielding groove 432 to the second yielding block 433, and when the third top 1211c rotates to the first yielding block 422 and gradually lifts the first yielding block 422, the first limiting block 424 is higher than the first limiting groove 212a, at this time, the first limiting block 424 removes the rotation limitation on the first limiting groove 212a, that is, the first limiting member 42 removes the rotation limitation on the first annular body 21, and the first annular body 21 rotates clockwise under the action of the 5-degree potential energy of the first torsion spring until the protrusion 211 is clamped between the first limiting member 42 and the second limiting member 43.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (9)

1. A dual-power transfer switch capable of unlocking and locking a mechanism in a linkage manner comprises a shell, a cover body connected with the shell, a bracket arranged in the shell, a motion conversion mechanism and a locking mechanism;

the inner wall of the cover body is provided with a mandril; the motion conversion mechanism comprises a first annular body, and a lug is arranged on the outer side wall of the first annular body; locking mechanical system is including articulating first locating part and the second locating part on the support, its characterized in that:

when the cover body is in an open state, the opposite end surfaces of the first limiting piece and the second limiting piece are respectively in locking fit with the left side and the right side of the lug;

the first limiting part extends from the middle part of the first limiting part to a direction far away from the convex block, and the ejector rod presses the trigger rod so as to tilt the end face of the first limiting part to enable the end face to be separated from locking the convex block in a state that the cover body is covered on the shell;

the end face, close to the convex block, of the first limiting part is provided with a warping plate, the bottom of the second limiting part is provided with a buckling face, the warping plate extends to the lower portion of the buckling face, and the end face of the second limiting part is lifted in a linkage mode under the pressing of the ejector rod to be separated from the locking of the convex block.

2. The dual power transfer switch of claim 1, wherein: still include an unlocking piece, the unlocking piece includes transmission pole and pressure board face, covers under the state of casing at the lid, the top of transmission pole is by the ejector pin, the trigger lever top is by the pressure board face.

3. The dual power transfer switch of claim 2, wherein: the top of casing is equipped with the second through-hole, second through-hole and transfer bar looks adaptation.

4. The dual power transfer switch of claim 2, wherein: the unlocking piece is provided with a first guide rail, the shell is provided with a second guide rail, and the first guide rail is matched with the second guide rail.

5. The dual power transfer switch of claim 2, wherein: still include an elasticity piece that resets, elasticity resets and is connected with unlocking piece and casing, and under the state of lid and casing separation, elasticity resets and makes the pressure plate face and the tendency that the trigger bar has alternate segregation.

6. The dual power transfer switch of claim 5, wherein: the bottom of the unlocking piece is provided with a connecting hole for connecting the elastic resetting piece.

7. The dual power transfer switch of any of claims 1-6, wherein: the shell is hinged with the cover body.

8. The dual power transfer switch of any of claims 1-6, wherein: the manual driving mechanism comprises a first rotating part, a first inner cavity is formed in the middle position of the first rotating part, and a second inner cavity is formed in the middle position of the first annular body; the first rotating piece and the first annular body are coaxially arranged and are mutually connected, and the first inner cavity and the second inner cavity form an accommodating cavity; a first torsion spring is arranged in the accommodating cavity, and two ends of the first torsion spring are respectively connected with the first rotating piece and the first annular body;

a second annular body is arranged on the end face of the first rotating piece, and a first jacking block and a fourth jacking block which are arranged in a layered mode are arranged on the second annular body; the first top block is matched with the first limiting piece, and the fourth top block is matched with the second limiting piece; the bottom of the first limiting part is provided with a first yielding groove arranged on the same layer as the fourth top block, and the bottom of the second limiting part is provided with a second yielding groove arranged on the same layer as the first top block.

9. The dual power transfer switch of claim 8, wherein: the bottom surface of the second abdicating groove is a buckling surface.

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