CN114388283B

CN114388283B - Bypass type dual-power automatic transfer switch

Info

Publication number: CN114388283B
Application number: CN202210087404.3A
Authority: CN
Inventors: 管瑞良; 沈惠新; 顾怡文
Original assignee: Changshu Switchgear Manufacturing Co Ltd
Current assignee: Changshu Switchgear Manufacturing Co Ltd
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2023-11-17
Anticipated expiration: 2042-01-25
Also published as: CN114388283A

Abstract

The bypass type double-power automatic transfer switch comprises a drawing frame, a first switch body and a second switch body which are overlapped up and down, a transmission device used for driving the corresponding switch bodies to move in the drawing frame respectively is arranged between each switch body and the drawing frame, a locking device is further arranged between each switch body and the drawing frame and is associated with the opening and closing states of the corresponding switch bodies, the corresponding transmission device is locked to prevent the switch bodies from moving in the drawing frame when the corresponding switch bodies are in the closing states, the corresponding transmission device is unlocked when the corresponding switch bodies are in the opening states, a connecting mechanism is arranged between the two locking devices, and when one of the first switch body and the second switch body is in the opening state, the corresponding locking device of the switch body drives the other locking device to lock the transmission device of the other switch body through the connecting mechanism. Ensuring the accuracy and reliability of the switch action and improving the safety of the user operation.

Description

Bypass type dual-power automatic transfer switch

Technical Field

The invention belongs to the technical field of piezoelectric devices, and particularly relates to a bypass type double-power-supply automatic transfer switch.

Background

In the technical field of electrical appliances, automatic transfer switches (ATSE for short) are used for providing uninterrupted power supply for loads, so as to ensure the continuity of power supply. Although the known ATSE can realize the conversion between two paths of power supplies to meet the requirement of power supply stability, when the ATSE fails, the ATSE also has to carry out short power-off maintenance, thereby having a corresponding influence on the power supply continuity. In order to ensure the continuity of power supply, namely continuous power supply can be performed when ATSE fails, an alternating conversion system is formed by two sets of change-over switch appliances, so that when one set of change-over switch appliances fails, the alternating conversion system can be switched to the other set in time, namely the other set of change-over switch appliances can ensure the power supply, and the alternating conversion system has positive significance for ensuring uninterrupted continuous power supply of important loads. However, when two sets of automatic transfer switches are provided, the switch body, particularly the switch body of the bypass transfer switch, is pulled out to perform live operation in a self-closing state, and meanwhile, the situation that two sets of transfer switch appliances are simultaneously powered off often occurs, which is disadvantageous to the accuracy and reliability of the switching action and the safety of the user operation.

Disclosure of Invention

The invention aims to provide a bypass type double-power-supply automatic transfer switch which can prevent the two switches from being simultaneously powered off while preventing the switch body from being pulled out in a self-closing state, thereby ensuring the accuracy and reliability of the switching action and improving the safety of the user operation.

The invention aims to achieve the purpose, and the bypass type double-power-supply automatic transfer switch comprises a drawing frame, a first switch body and a second switch body which are overlapped up and down, wherein a transmission device for driving the corresponding switch bodies to move in the drawing frame respectively is arranged between each switch body and the drawing frame, a locking device is also arranged between each switch body and the drawing frame, the locking device is associated with the opening and closing state of the corresponding switch body, the corresponding transmission device is locked when the corresponding switch body is in the closing state, the switch body is prevented from moving in the drawing frame, the locking of the corresponding transmission device is released when the corresponding switch body is in the opening state, a connecting mechanism is arranged between the two locking devices, and the transmission device of the other switch body is locked by the locking device driven by the connecting mechanism when one of the first switch body and the second switch body is in the opening state.

In a specific embodiment of the invention, the transmission device comprises a handle transmission shaft which is arranged on the drawing frame along the moving direction of the switch body, and the switch body moves in the drawing frame through the rotation of the handle transmission shaft; the locking device comprises a driving sliding plate, an interlocking lever driving piece, a push plate and a locking plate, wherein the driving sliding plate is arranged on the drawing frame in a sliding manner along the stacking direction of the two switch bodies, the interlocking lever driving piece is rotatably arranged on the drawing frame, the push plate is provided with a driving plate and a pushing plate, the locking plate is arranged on the drawing frame in a sliding manner along the radial direction of a handle transmission shaft, the driving plate is rotatably arranged on the drawing frame in a horizontal state and is matched with the locking plate, the pushing plate stretches in a longitudinal state and is matched with the driving sliding plate and the interlocking lever driving piece, the driving sliding plate corresponding to the first switch body is connected with the interlocking lever driving piece corresponding to the second switch body through one interlocking lever in a connecting mechanism, the driving sliding plate is driven between a sliding plate driving position corresponding to the switching-on state of the switch body and a sliding plate driving position corresponding to the switching-off state of the switch body through the switching action of the corresponding switch body, and the driving sliding plate corresponding to the other interlocking lever driving piece is far away from the interlocking lever through the other interlocking lever in the connecting mechanism; when the interlocking lever driving piece is positioned at the lever far-away position, if the driving slide plate is positioned at the slide plate disengaging position, the action on the pushing plate is released, the driving plate acts on the locking plate, so that the locking plate is positioned at an unlocking position outside the rotating track of the handle transmission shaft of the switch body to release the rotation of the handle transmission shaft, and if the driving slide plate is positioned at the slide plate driving position, the driving slide plate acts on the pushing plate, and the driving plate acts on the locking plate to ensure that the locking plate is positioned at the locking position inside the rotating track of the handle transmission shaft of the switch body to block the rotation of the handle transmission shaft; when the interlocking lever driving piece is positioned at the lever pushing position, the interlocking lever driving piece acts on the pushing plate, and the driving plate acts on the locking plate, so that the locking plate is positioned at the locking position in the rotating track of the handle transmission shaft of the switch body to stop the handle transmission shaft from rotating.

In another specific embodiment of the present invention, the drawer frame includes a drawer seat corresponding to the first switch body, another drawer seat corresponding to the second switch body and having the same structure as the drawer seat, a pair of drawer frame side plates, the first switch body and the second switch body have the same structure, two drawer seats are stacked, a pair of side plates are respectively fixed to the two drawer seats and are separately disposed at two sides of the two drawer seats, the drawer seats include a bottom plate, a left side plate and a right side plate, the transmission device is disposed in each corresponding drawer seat, the driving slide plate is disposed at a side of the right side plate of each corresponding drawer seat facing the left side plate, the interlocking lever driving member is disposed at a side of the right side plate of each corresponding drawer seat facing the left side plate, the driving plate is disposed at an end of the bottom plate facing the right side plate, and the driving plate is formed by folding and unfolding an end of the driving plate facing the right side plate upward in a longitudinal state.

In another specific embodiment of the present invention, the locking plate includes a driving plate, a locking plate body and an elastic member, the driving plate is slidably matched with the locking plate body towards one end of the right side plate, the driving plate is matched with the driving plate, the elastic member is connected between the driving plate and the locking plate body, and in the process that the driving plate drives the locking plate to slide from the unlocking position to the locking position, the driving plate is driven by the driving plate, and then the locking plate body is pulled by the elastic member to act; in the process that the driving plate drives the locking plate to slide from the locking position to the unlocking position, the driving plate drives the driving plate, and the driving plate pushes the locking plate body to act.

In still another specific embodiment of the present invention, the transmission sheet includes a sliding sheet and a transmission bottom sheet, the sliding sheet and the transmission bottom sheet form an integral structure, the sliding sheet is parallel to the locking sheet body, the transmission bottom sheet is formed by folding and unfolding a bottom part of the sliding sheet towards a direction of the locking sheet body, a housing mounting surface is formed by folding and unfolding a side of the bottom plate towards the locking sheet body, a housing mounting surface guide post is arranged on the housing mounting surface and towards the bottom plate, a locking sheet body sliding groove is arranged on the locking sheet body, the sliding of the locking sheet body relative to the housing mounting surface is guided by the housing mounting surface guide post being accommodated in the locking sheet body sliding groove, a transmission sheet guide piece is arranged on the locking sheet body and towards one end of the transmission sheet, a transmission sheet guide piece sliding groove is arranged on the sliding sheet, the transmission sheet guide piece is positioned on the locking sheet body after passing through the transmission sheet guide piece sliding groove and guides the sliding of the transmission sheet, and a driving post is fixed on the transmission bottom sheet; a drive plate pivot is provided on the base plate and at a position corresponding to the drive plate; the driving plate is provided with a pivot hole and a driving chute, the pivot hole is in pivot fit with the pivot of the driving plate, and the driving chute is in fit with the driving column on the transmission bottom plate.

In a further specific embodiment of the present invention, a handle operation via hole is provided on the locking plate body, and a latch plate is provided on a side of the locking plate body facing away from the slider and at a position corresponding to the handle operation via hole, the latch plate having a latch tongue which is inserted into one end of the handle operation via hole; the handle transmission shaft is inserted with the handle operation through hole, limit grooves are uniformly distributed on the circumferential surface of the handle transmission shaft at intervals, the limit grooves extend in an axial state parallel to the handle transmission shaft, and when the locking plate body is located at the locking position, the handle transmission shaft is located at one end of the handle operation through hole, which is provided with the lock tongue, and the lock tongue is inserted into the limit grooves.

In a further specific embodiment of the present invention, a slide plate driving boss is disposed on the driving slide plate, and a driving end face and a disengaging end face are sequentially formed on a side surface of the pushing plate from top to bottom along the height direction of the automatic transfer switch, and the disengaging end face is concavely formed on the driving end face through a transition end face; when the switch body is switched on, the driving slide plate is in a slide plate driving position far away from the bottom plate, the slide plate driving boss acts on the driving end face, and when the switch body is switched off, the driving slide plate is in a slide plate disengaging position close to the bottom plate, and the slide plate driving boss acts on the disengaging end face.

In a further specific embodiment of the present invention, a driving slide chute is formed on the driving slide, a driving slide guiding post is disposed at the left side of the right side plate and at a position corresponding to the driving slide chute, the driving slide guiding post is accommodated in the driving slide chute to guide the driving slide, a driving slot is formed on the driving slide and at the upper part of the driving slide in a transverse state, an opening is formed at one end of the driving slot facing the mounting surface of the housing, and a limiting boss is protruded at the upper part corresponding to the opening; each switch body comprises an operating mechanism and a contact system, the operating mechanism comprises a main shaft, the contact system comprises a moving contact driven by the main shaft to rotate and a pair of fixed contacts symmetrically arranged on two sides of the moving contact, a rocker mechanism is arranged on the main shaft and comprises a first connecting rod and a second connecting rod, the first connecting rod is sleeved on the main shaft, one end of the second connecting rod is connected with one end of the first connecting rod, a connecting rod driving boss is arranged on the other end of the second connecting rod, when the first switch body is in a closing state, one of the moving contact of the contact system and one of the fixed contacts of the pair of fixed contacts is closed, the first connecting rod and the second connecting rod are in a zigzag state, the rocker mechanism is in a folding state, the connecting rod driving boss is stopped by the limiting boss, so that the switch body cannot enter the drawer seat from the outside, when the switch body is in a separating state, the first connecting rod and the second connecting rod form a straight line unfolding state with each other, so that the rocker mechanism is in an extending state, and the connecting rod driving boss and the switch body are matched with the drawer body to be separated from the drawer seat, and the drawer body is allowed to enter the drawer seat from the drawer seat to be driven by the driving boss, and the sliding plate is separated from the drawer seat to the driving seat.

In yet a further specific embodiment of the invention, the interlocking lever drive is provided with an interlocking boss at one end and a lever drive boss at the other end, the lever drive boss passing through the right side plate and extending to the left side of the right side plate; a slide plate interlocking boss extending to the right side of the right side plate is further arranged on the driving slide plate; the lever driving lug boss on each interlocking lever driving piece is matched with the pushing plate of the corresponding pushing plate, and the interlocking lug boss of the interlocking lever driving piece corresponding to one switch body is connected with the sliding plate interlocking lug boss of the driving sliding plate corresponding to the other switch body through one interlocking lever in the connecting mechanism.

In still another specific embodiment of the present invention, when one of the first switch body and the second switch body is in the closing position, the driving slide plate corresponding to the one of the first switch body and the second switch body is in the sliding plate driving position, and one interlocking lever in the connecting mechanism drives an interlocking boss of an interlocking lever driving member corresponding to the other switch body and keeps the lever driving boss away from a driving end surface on the pushing plate of the pushing plate corresponding to the other switch body; when one of the first switch body and the second switch body is at the opening position, the driving slide plate corresponding to the one of the switch bodies at the opening position is at the slide plate disengaging position, and one interlocking lever in the connecting mechanism drives the interlocking boss of the interlocking lever driving piece corresponding to the other switch body and enables the lever driving boss to push the driving end face on the pushing plate of the pushing plate corresponding to the other switch body.

According to the technical scheme provided by the invention, the locking device is additionally arranged, so that the situation that the first switch body and the second switch body are simultaneously powered off can be avoided while the switch body is pulled out in a closing state, the accuracy and reliability of the switching action are ensured, and the safety of user operation is improved.

Drawings

Fig. 1 is a schematic diagram of a bypass-type automatic transfer switch according to the present invention.

Fig. 2 is a schematic diagram of the cooperation of a switch body and a drawer seat thereof according to the present invention.

Fig. 3 is an overall structural view of the drawer base shown in fig. 2.

Fig. 4 is an exploded view of the drawer base shown in fig. 2 and 3.

Fig. 5 is a structural view of the bottom plate and the right side plate shown in fig. 2 and 3.

Fig. 6 is a detailed structural view of the right side plate shown in fig. 5.

Fig. 7 is a detailed structural view of the driving sled shown in fig. 5 and 6.

Fig. 8a is a perspective view of the restriction member shown in fig. 5 and 6.

Fig. 8b is a schematic front view of fig. 8 a.

Fig. 9 is a structural view of the interlocking lever driving member shown in fig. 6.

Fig. 10 is a schematic view of the interlock plate shown in fig. 5 and 6.

Fig. 11 is a right side view of the left side plate.

Fig. 12 is an exploded view of fig. 11.

Fig. 13 is a structural view of the bottom plate of the drawer base.

Fig. 14 is an exploded view of the bottom plate of the drawer base.

Fig. 15 is a detailed structural view of the locking plate shown in fig. 5, 13 and 14.

Fig. 16 is an exploded view of fig. 15.

Fig. 17 is a detailed structural view of the drive plate shown in fig. 14 to 16.

Figure 18a is a block diagram of one embodiment of the push plate of figures 5, 13 and 14.

Figure 18b is a block diagram of another embodiment of the push plate of figures 5, 13 and 14.

Fig. 19 is a schematic view of the cooperation of the drive sled, push plate and locking plate.

Fig. 20 is a perspective view of the switch body with the mask removed.

Fig. 21 is an exploded view of the operating mechanism of the switch body.

Fig. 22 is a schematic view of the handle receiving tube and handle.

Fig. 23 is a perspective view of the drawer frame.

Fig. 24 is a schematic view of the switch body after being pulled out from the pulling frame.

Detailed Description

In order to make the technical spirit and advantages of the present invention more clearly understood, the applicant will now make a detailed description by way of example, but the description of the examples is not intended to limit the scope of the invention, and any equivalent transformation made merely in form, not essentially, according to the inventive concept should be regarded as the scope of the technical solution of the present invention.

In the following description, unless otherwise noted, any concept relating to the directionality or azimuth of up, down, left, right, front and rear is based on the position state shown in fig. 1, and thus, it should not be construed as a specific limitation of the technical solution provided by the present invention.

The bypass type dual-power automatic transfer switch of the invention comprises a drawing frame 300, a first switch body 201 and a second switch body 202 which are overlapped up and down, and a transmission device 104 for driving the corresponding switch bodies to move in the drawing frame respectively is arranged between each switch body and the drawing frame 300, and the bypass type dual-power automatic transfer switch is characterized in that a locking device 1 is also arranged between each switch body and the drawing frame 300, the locking device 1 is associated with the opening and closing state of the corresponding switch body, the corresponding transmission device 104 is locked to prevent the switch body from moving in the drawing frame 300 when the corresponding switch body is in the closing state, the corresponding transmission device 104 is unlocked when the corresponding switch body is in the opening state, a connecting mechanism 301 is arranged between the two locking devices 1, so that when one of the first switch body 201 and the second switch body 202 is in the opening state, the corresponding locking device 1 drives the other locking device 1 to lock the transmission device 104 of the other switch body through the connecting mechanism 301.

When one of the switch bodies is in a closing state, the locking device 1 corresponding to the switch body drives the locking device 1 corresponding to the other switch body to act through the connecting mechanism 301, so that the action chain of the locking device 1 corresponding to the one switch body to the transmission device 104 of the other switch body is disconnected, that is, whether the locking device 1 corresponding to the one switch body is locked or not can not be determined by the connecting mechanism 301 and the locking device 1 corresponding to the other switch body, and whether the locking device 104 of the other switch body is locked or not is related to the opening and closing state of the other switch body.

Referring to fig. 1 to 6 and fig. 23 to 24, the bypass type automatic transfer switch shown in fig. 1 of the present embodiment, which is actually a bypass type, includes a drawer 300 and two switch bodies stacked up and down, namely, the first switch body 201 and the second switch body 202, the drawer 300 includes a drawer base 100 corresponding to the first switch body 201, another drawer base corresponding to the second switch body 202, and a pair of drawer side plates 302, the first switch body 201 and the second switch body 202 have the same structure, hereinafter collectively referred to as the switch body 200, the two drawer bases have the same structure, hereinafter collectively referred to as the drawer base 100, the two drawer bases are stacked up and down, and a pair of side plates are respectively fixed to the two drawer bases and are respectively disposed on two sides of the two drawer bases. The drawer base 100 includes a bottom plate 101, a left side plate 102, a right side plate 103, and a driving device 104 for driving the switch body 200 to move in the drawer base 100, the driving device 104 includes a handle driving shaft 105 (shown in fig. 5), the handle driving shaft 105 is disposed on the bottom plate 101 along the moving direction of the switch body 200, and the switch body 200 is moved in the drawer base 100 by rotating the handle driving shaft 105.

The technical key points of the technical scheme provided by the invention are as follows: a locking device 1 is provided on the drawer base 100, the locking device 1 includes a driving member 11, a locking plate 12 and a push plate 13, the driving member 11 is provided on one side of the right side plate 103 toward the left side plate 102, the locking plate 12 and the push plate 13 are provided on the bottom plate 101, the driving member 11 is driven by the switching action of the switch body 200 between the on state and the off state and has a first position corresponding to one state of the switch body 200, and has a second position corresponding to the other state of the switch body 200, when the driving member 11 is located at the first position, the driving member 11 acts on the push plate 13 and acts on the locking plate 12 by the push plate, so that the locking plate 12 is located at a locking position within the rotation locus of the handle transmission shaft 105, and when the driving member 11 is located at the second position, the driving member 11 acts on the push plate 13 and acts on the locking plate 12, so that the locking plate 12 is located at an unlocking position outside the rotation locus of the handle transmission shaft 105, so that the rotation of the handle transmission shaft 105 is released.

Fig. 1 shows a connection 301 for connecting the respective locking devices 1 of the first switch body 201 and the second switch body 202, which is formed by two interlocking levers, which may be rigid levers or cables; in fig. 2, an indication window 203 and a manual operation member 204 of the switch body 200 are shown (the first switch body 201 and the second switch body 202 each have the indication window 203 and the manual operation member 204 thereon).

The drawer base 100 of the present invention, as shown in fig. 4, includes a bottom plate assembly, a left side plate assembly, a right side plate assembly, a top cover 107, and a bottom frame assembly 108.

As shown in fig. 2 and 5, the base plate assembly includes a base plate 101, a transmission device 104, and a cover assembly 106, wherein the periphery of the base plate 101 is turned up to form a left side plate mounting surface, a right side plate mounting surface, a cover mounting surface 1011, and a chassis mounting surface, a handle operation hole 10111, a handle storage hole 10112, a three-position indication hole 10113, a padlock hole 10114, a three-position unlocking hole, and an interlocking shaft hole 10115 are provided in the cover assembly 106, a cover mounting surface guide post 1012 (fig. 14 and 19) to be mentioned below is provided in an inner side surface of the cover mounting surface, and a handle operation through hole 10116 is provided in the cover mounting surface 1011. A handle receiving tube 14 is fixed to the base plate 101, passes through the locking plate 12, and then extends into the housing assembly 106 to communicate with the handle storage hole 10112.

Referring to fig. 22, a rubber seal ring mounting groove 141 is formed on the circumferential side wall of the handle storage tube 14, a rubber seal ring 142 is elastically deformed (in an enlarged circumferential state) and then is clamped into the rubber seal ring mounting groove 141 from one end of the handle storage tube 14 to shrink, when the handle is stored, the handle is inserted into the handle storage tube 14 through the handle storage hole 10112, and the shrunk rubber seal ring 142 is clamped into a handle groove 143 on the handle to fix the handle in the storage tube.

The aforementioned transmission device 104 is disposed on the bottom plate 101, and comprises a screw transmission assembly 1041 disposed on the bottom plate 101 and a gear transmission assembly 1042 disposed between the left and right side plates 102, 103, wherein the screw transmission assembly 1041 comprises a carriage 10411 slidably disposed on the bottom plate 101, a handle transmission shaft 105 (i.e., screw handle transmission shaft) rotatably disposed on the bottom plate 101 and disposed along the moving direction of the switch body, and a rotation rod 10412 rotatably disposed on the bottom plate 101 and extending between the left and right side plates, one end of the aforementioned screw transmission assembly 1041 drives the sliding carriage 10411 to move, the other end extends into the handle operation through hole 10116 of the bottom plate housing mounting surface 1011, and limiting grooves 1051 are uniformly distributed on the circumferential surface of the other end of the screw transmission assembly 1041 (shown in fig. 19).

Referring to fig. 5, 18a and 18b, the push plate 13 is jointly formed by a driving plate 131 and a pushing plate 132, and has an L-shaped structure, the driving plate 131 is rotatably disposed at one end of the bottom plate 101 facing the right side plate 103 in a horizontal state and is engaged with the locking plate 12, and the pushing plate 132 is formed by folding and unfolding the driving plate 131 upward in a longitudinal state toward one end of the right side plate 103 and is engaged with the driving member 11; when the driving member 11 moves between the first position and the second position, the driving member 11 acts on the pushing plate 132, the driving plate 131 is driven to rotate by the pushing plate 132, and the locking plate 12 is driven to move radially along the handle transmission shaft 105 by the driving plate 131 between the locking position and the unlocking position.

Referring to fig. 14 to 17 and fig. 19 in combination with fig. 5, the locking plate 12 includes a driving plate 121, a locking plate body 122, and an elastic member 123, wherein the driving plate 121 is slidably engaged with the locking plate body 122 toward one end of the right side plate 103, the locking plate body 122 is engaged with the driving plate 131, the elastic member 123 is connected between the driving plate 121 and the locking plate body 122, and the driving plate 131 drives the driving plate 121 and then the elastic member 123 pulls the locking plate body 122 to move when the driving plate 131 drives the locking plate 12 to slide from the unlocking position to the locking position; while the driving plate 131 drives the locking plate 12 to slide from the locking position to the unlocking position, the driving plate 131 drives the driving plate 121, and the driving plate 121 pushes the locking plate body 122 to operate. The locking plate body 122 is provided with a spring mounting cavity 1229, one end of the elastic member 123 is hung on the transmission piece 121, and the other end is hung on the locking plate body 122 and is located in the spring mounting cavity 1229.

The lock plate 122 is provided with, for the housing mounting surface 1011 and the housing assembly 106: the handle operation via hole 1223 provided corresponding to the drawer base handle operation hole 10111 and the handle operation via hole 10116, the three-position unlocking shaft movement hole 1225 (see fig. 2 and 15) communicating with the handle operation via hole 1223, the handle storage via hole 10112 provided corresponding to the drawer base handle storage hole 10112, the three-position indication via hole 1224 provided corresponding to the three-position indication hole 10113 (shown in fig. 2) on the housing assembly 106, the three-position interlocking shaft via hole 1226, the padlock plate movement hole 1227 provided corresponding to the padlock hole 10114, and the locking plate body sliding groove 1221, the locking plate body sliding groove 1221 and the housing mounting surface guide column 1012 (shown in fig. 14) on the housing mounting surface 1011.

Referring to fig. 3, 5 and 10, in fig. 10, a specific structure of the interlocking plate 3 is shown, one end of the interlocking plate 3 is configured as an interlocking end 31, the other end is configured as a driving end 32, the middle part is configured as a pivoting section 33, and an interlocking boss 311 is further configured at the position of the interlocking end 31. The engagement of the interlock plate 3 with the limit 1033 is shown in fig. 3 and 5.

Referring to fig. 13 and in combination with fig. 14 to 17, the aforementioned transmission sheet 121 includes a slide 1211 and a transmission sheet 1212, the slide 1211 and the transmission sheet 1212 are integrally formed with each other, and the slide 1211 is parallel to the aforementioned lock plate body 122, the transmission sheet 1212 is formed by folding the bottom of the slide 1211 toward the direction of the aforementioned lock plate body 122, the aforementioned bottom plate 101 is folded upward toward the side of the aforementioned lock plate body 122 to form a housing mounting surface 1011 as mentioned above, housing mounting surface guide posts 1012 are provided on the housing mounting surface 1011 and toward the side of the bottom plate 101, locking plate body slide slots 1221 are provided on the aforementioned lock plate body 122, sliding of the aforementioned lock plate body 122 with respect to the aforementioned housing mounting surface 1011 is guided by the aforementioned housing mounting surface guide posts 1012 being accommodated in the locking plate body slide slots 1221, transmission sheet guide 1222 (fig. 16) are provided on the lock plate body 122 and toward one end of the aforementioned transmission sheet 122, transmission sheet guide slots 12111 are provided on the aforementioned slide 1211, and the aforementioned transmission sheet guide slots 12117 are provided on the aforementioned slide guide slots 121 and the transmission sheet guide 1222 is positioned on the aforementioned drive plate body 121.

As shown in fig. 18a, 18b and 19, a driving plate pivot 1015 is provided on the aforementioned bottom plate 101 and at a position corresponding to the driving plate 131; a pivot hole 1311 and a drive slide slot 1312 are formed in the drive plate 131, the pivot hole 1311 pivotally engages the drive plate pivot 1015, and the drive slide slot 1312 engages the drive post 12121 (shown in fig. 17) on the drive plate 1212.

As shown in fig. 16, a handle operation via hole 1223 is provided in the locking plate body 122, a latch plate 1228 is provided on a side of the locking plate body 122 facing away from the slide plate 1211 and at a position corresponding to the handle operation via hole 1223, the latch plate 1228 has a latch 12281, and the latch 12281 is inserted into one end of the handle operation via hole 1223; the handle driving shaft 105 is inserted into the handle operation through hole 1223, and the limit grooves 1051 (shown in fig. 9) are uniformly spaced on the circumferential surface of the handle driving shaft 105, which extend parallel to the axial direction of the handle driving shaft 105, and when the locking plate body 122 is positioned at the locking position, the handle driving shaft 105 is positioned at one end of the handle operation through hole 1223 having the locking tongue 12281, and the locking tongue 12281 is inserted into the limit groove 1051.

The action process is as follows:

referring to fig. 5 or 19, in the position state shown in fig. 5 or 19, when an external input drives the driving plate 121 to move through the driving shaft 12121, the driving plate 121 drives the latch plate 1228 and the latch 12281 on the latch plate 1228 to lock the handle driving shaft 105 through the elastic member 123 acting as a return spring, when the latch 12281 is not aligned with the limit groove 1051 on the handle driving shaft 105, the latch 12281 abuts against the outer circumferential surface of the handle driving shaft 105 under the action of the elastic member 123, when the handle driving shaft 105 rotates, the latch 12281 is aligned with the limit groove 1051 on the handle driving shaft 105, and the latch 12281 is inserted into the limit groove 1051 to lock the handle driving shaft 105 under the action of the elastic member 123. When the handle transmission shaft 105 is to be unlocked, the external input will drive the transmission plate 121 to move leftwards, and the transmission plate guide 1222 on the locking plate body 122 is directly pushed by the transmission plate guide sliding groove 12111 of the transmission plate 121, so that the locking plate body 122 unlocks the handle transmission shaft 105 to the position state shown in fig. 5 or 19.

Mention has been made above of: the bottom plate 101 is further pivoted with a push plate 13, the push plate 13 is in an L-shaped structure, the driving plate 131 is parallel to the bottom plate surface, the driving plate 132 extends along the right side plate 103, and the driving plate 131 is provided with a driving sliding groove 1312 matched with a driving post 12121 on a driving bottom plate 1212 on the driving plate 121, so as to form a rocker slider structure with the locking plate 12.

As shown in fig. 18a and 19, a stopper-engaging groove 1313 is further provided on the driving plate 131, and the stopper-engaging groove 1313 is engaged with the stopper-engaging column 1013 on the bottom surface of the bottom plate 101.

Referring to fig. 5 to 7, 18a, 18b and 19, the driving member 11 includes a driving slide 111, the driving slide 111 is slidably disposed on the left side of the right side plate 103 along the height direction of the automatic transfer switch, a slide driving boss 1111 is disposed on the driving slide 111, a driving end face 1321 and a disengaging end face 1323 are sequentially formed on one side surface of the driving plate 132 from top to bottom along the height direction of the automatic transfer switch, and the disengaging end face 1323 is concavely formed on the driving end face 1321 through a transition end face 1322; the switch body 200 includes a first switch body 201, the driving slide 111 is driven by the first switch body 201, and when the first switch body 201 is closed, the driving slide 111 is at a slide driving position away from the base plate 101, the slide driving boss 1111 acts on the driving end face 1321, and when the first switch body 201 is opened, the driving slide 111 is at a slide disengaging position close to the base plate 101, and the slide driving boss 1111 acts on the disengaging end face 1323.

A push plate return spring 1014 shown in fig. 19 is also provided between the push plate 13 and the bottom plate 101. When the cam surface on the push plate 132 is not under force (the lever drive boss 1122, which will be described below, is disengaged from the drive end face 1321 and the slide drive boss 1111 is at the disengaged end face 1323), the aforementioned push plate 13 is rotated counterclockwise (as viewed with reference to fig. 19) by the push plate return spring 1014, which moves the locking plate body 122 to the left to unlock the handle drive shaft 105.

Referring to fig. 5 and 11 to 12, a left side board rail 1021 is provided on a left side board 102 of the aforementioned structural system of the left side board assembly, a right side board rail 1031 is provided on a right side board 103 of the structural system of the right side board assembly, and a gear transmission assembly 1042, a driving member 11, and left and right side board shutter driving assemblies 1022 and 1032 are provided on the left and right side board assemblies, respectively. The guide rail is divided into an upper guide rail and a lower guide rail, the lower guide rail is used for sliding the switch body 200, the upper guide rail is used for preventing the switch body 200 from overturning in the sliding process, the upper guide rail and the lower guide rail are riveted on the side plates, and a space between the upper guide rail and the lower guide rail is formed into a guide column 2002 limiting groove for limiting the switch body 200. The gear assembly 1042 is linked with a rotating rod 10412 of the screw assembly 1041 on the upper bottom plate of the drawer seat, and cooperates with a driving shaft 2001 (see fig. 20) on the switch body through a guiding plate on the gear assembly 1042 to drive the switch body 200 to swing in and out along the guiding rail. The drawer locking member 1001 shown in fig. 11 (both the left side plate and the right side plate are provided with the driving end 10011 and the limiting end 10012) are arranged between the lower guide rail and the side plates, the driving end 10011 and the limiting end 10012 are arranged on two sides of the rotation center 10013 of the drawer locking member, and are matched with the guide posts 2002 (shown in fig. 20) on the switch body 200, when one guide post on the switch body presses the driving end 10011, the limiting end 10012 on the drawer locking member 1001 is tilted upwards, and by reasonably setting the distance of the guide posts on the switch body (when one guide post presses the driving end 10011 of the locking member, the other guide post is just blocked by the limiting end 10012 of the locking member), the switch body 200 can be restrained from being smoothly pulled out from the drawer seat 100, and the pressing of the driving end 10011 by the guide posts 2002 is released, so that the drawer locking member 1001 is reset under the action of the reset spring 10014 shown in fig. 12, and the switch body 200 can be pulled out from the drawer seat 100. The valve driving assembly is arranged at the rear side of the guide rail and comprises a sliding plate, a driving lever and a reset spring, wherein the sliding plate is matched with the front guide post on the switch body, so that the switch body can move upwards in the process of swinging into the drawer seat by the guide post, the driving lever is driven to lift the movable door plate upwards, the jack is opened, and the main loop of the switch body is smoothly butted with the main loop of the drawer seat. Two limiting shafts are respectively arranged on the left side plate and the right side plate of the drawer seat, and are an initial limiting column 1002 (matched with a limiting convex table top 104211 on a guide plate 10421 shown in fig. 4) and an action in-place limiting column 1003 (matched with a limiting groove matching surface 104212 of a gear transmission assembly 1042) of the gear guide plate, so that the screw rod locking device is prevented from continuously acting to cause mechanism damage after the guide plate is in an action position. The above-mentioned action in-place limiting post 1003 is also matched with a limiting groove 2003 on the switch body, and in the process of abutting joint of the switch body and the chassis assembly 108 of the drawer seat, the action in-place limiting shaft 1003 is inserted into the limiting groove 2003 on the switch body and matched with the guiding post 2002 on the switch body, so as to prevent the switch body from turning over in the inserting process.

Referring to fig. 8a, 8b and fig. 5, the right side plate 103 further includes limiting members 1033 symmetrically disposed on both sides of the right side plate rail 1031, an interlocking plate 3, and a driving member 11 located below the right side plate 103 and close to the bottom plate 101, and it has been mentioned that: the driving member 11 includes a driving slide plate 111 and an interlocking lever driving member 112, the driving slide plate 111 is located at the inner side of the right side plate 103, i.e., the side facing the left side plate 102, and the interlocking lever driving member 112 is located at the outer side of the right side plate 103 (i.e., the side facing away from the left side plate 102). The driving slide 111 is matched with the connecting rod driving boss 201121 serving as the third driving shaft on the switch body 200; a limiter, interlock plate, located below the guide rail, mates with the fourth drive shaft 2004; a limiter, interlock plate, located above the guide rail mates with the fifth drive shaft 2005.

Also shown in fig. 5 is a right side plate lower rail 1031a located below the right side plate rail 1031 of the right side plate 103; also shown in fig. 11 is a left side panel lower rail 1021a located below the left side panel rail 1021 of the left side panel 102, the concept of the aforementioned rail also being referred to as a guide plate.

Referring to fig. 7 and 20 to 21, a driving slide chute 1112 is formed on the driving slide 111, a driving slide guiding post 1113 is disposed at a position corresponding to the driving slide chute 1112 on the left side of the right side plate 103, the driving slide 111 is guided by the driving slide guiding post 1113 accommodated in the driving slide chute 1112, a driving slot 1114 is formed on the driving slide 111 and at the upper portion thereof in a lateral state, the driving slot 1114 is opened toward one end of the housing mounting surface 1011, and a limiting boss 1115 is protruded at the upper portion corresponding to the opening; the first switch body 201 includes an operation mechanism and a contact system, the operation mechanism includes a main shaft, the contact system includes a moving contact driven to rotate by the main shaft and a pair of fixed contacts symmetrically disposed at both sides of the moving contact, a rocker mechanism 2011 is disposed on the main shaft, the rocker mechanism 2011 includes a first link 20111 centrally sleeved on the main shaft and a second link 20112 having one end connected to one end of the first link 20111, a link driving boss 201121 is disposed at the other end of the second link 20112, when the first switch body 201 is closed, the moving contact of the contact system is closed with one of the pair of fixed contacts, the rocker mechanism 2011 is in a folded state by being bent between the first link 20111 and the second link 20112, the link driving boss 201121 is stopped by the limit boss 1115 so that the first switch body 201 cannot enter the drawer base 100 from the outside of the drawer base 100, when the first switch body 201 is in the opening state, the moving contact of the contact system is located at an intermediate position separated from the pair of fixed contacts, the first link 20111 and the second link 20112 are linearly unfolded from each other so that the rocker mechanism 2011 is in an extended state, the link driving boss 201121 cooperates with the driving groove 1114 to allow the first switch body 201 to enter the drawer base 100 from the outside of the drawer base 100, and when the first switch body 201 enters the drawer base 100, the link driving boss 201121 pushes the upper wall surface of the driving groove 1114 to move the driving slide 111 from the slide-off position to the slide-on driving position during the opening-closing operation of the first switch body 201.

The switch body 200 includes a second switch body 202, the second switch body 202 has the same structure as the first switch body 201, the driving member 11 of the locking device 1 further includes an interlocking lever driving member 112 as mentioned above, the interlocking lever driving member 112 is rotatably disposed on the right side surface of the right side plate 103, an interlocking boss 1121 is disposed at one end of the interlocking lever driving member 112, a lever driving boss 1122 is disposed at the other end thereof, and the lever driving boss 1122 penetrates the right side plate 103 and extends to the left side of the right side plate 103; a slide interlocking boss 1116 extending to the right side of the right side plate is further provided on the driving slide 111; the first switch body 201 and the second switch body 202 are respectively provided with the transmission device 104 and the locking device 1, the lever driving boss 1122 on each of the interlocking lever driving parts 112 is matched with the pushing plate 132 of the pushing plate 13 respectively corresponding to each of the interlocking lever driving parts 112, and the interlocking boss 1121 of the interlocking lever driving part 112 corresponding to the switch body 201 is connected with the slide plate interlocking boss 1116 of the driving slide plate 111 corresponding to the second switch body 202 through an interlocking steel cable; the interlocking boss 1121 of the interlocking lever driver 112 provided corresponding to the second switch body 202 is connected with the slide interlocking boss 1116 of the driving slide 111 provided corresponding to the first switch body 201.

When one of the first switch body 201 and the second switch body 202 is at the closing position, the driving slide plate 111 corresponding to the one of the first switch body and the second switch body is at the sliding plate driving position, and the lever driving boss 1122 of the interlocking lever driving member 112 corresponding to the other switch body is driven by the interlocking steel cable, and the lever driving boss 1122 is located at the driving end face 1321 of the pushing plate 132 of the pushing plate 13 corresponding to the other switch body; when one of the first switch body 201 and the second switch body 202 is in the opening position, the driving slide 111 corresponding to the one of the first switch body and the second switch body is in the slide-out position, and the lever driving boss 1122 of the interlocking lever driving member 112 corresponding to the other switch body is driven by the interlocking wire rope, so that the lever driving boss 1122 presses the driving end face 1321 of the pushing plate 132 of the pushing plate 13 corresponding to the other switch body.

The drive slide 111 is provided with a drive slide return spring 1117 (shown in fig. 6) in addition to the drive slide channel 1112, drive channel 1114, limit boss 1115, slide drive boss 1111, and slide interlock boss 1116. The driving slide 111 is mounted on the driving slide guide post 1113 through the driving slide chute 1112, so that the driving slide 111 can slide up and down freely, and the corresponding switch body is in the opening position (original position) when the driving slide 111 is located below; when the sliding plate is positioned above, the corresponding switch body is positioned at a closing position. The drive slide slots 1112 described above are arranged in three-point parallel with a cavity between the slots to accommodate the drive slide return spring 1117. The driving groove 1114 is engaged with the link driving boss 201121 of the switch body 200, which is a third driving shaft, and the driving groove 1114 is perpendicular to the sliding direction of the driving slider 111 (the same as the direction of inserting and extracting the switch body) and is opened toward the end of the inserting direction of the switch body, and the length of the driving groove 1114 is the distance from the separated position to the connected position of the switch body 200. A limit boss 1115 is provided above the opening end of the driving groove 1114, the limit boss 1115 is a plane extending along the sliding direction of the driving sliding plate 111, and the length of the limit boss 1115 is longer than the moving distance of the third driving shaft 201121 as the switch body. The slide plate driving boss 1111 and the slide plate interlocking boss 1116 are located at two sides of the plane of the driving slide plate 111, the slide plate driving boss 1111 faces the inside of the drawer base 100, and is close to the bottom plate 101 of the drawer base 100, and cooperates with the driving end face 1321, the transition end face 1322 and the disengaging end face 1323 of the pushing plate 132 to transform the up-and-down sliding of the driving slide plate 111 into the horizontal movement of the locking plate body 122. The slide interlocking boss 1116 faces the outside of the drawer 100 and extends out of the right side plate surface of the drawer 100, and a movement groove 1035 (shown in fig. 6) is correspondingly formed in the right side plate surface, and a steel cable is connected to the end of the slide interlocking boss 1116 extending out of the side plate.

When the driving slide 111 is located below, a cavity 1036 (shown in fig. 5) is formed between the upper end surface of the driving slide 111 and the stopper 1033 and the interlocking plate 3 located below the guide rail, so that the driving shaft 2001 on the switch body slides into the space when the switch body 200 is pushed in.

The interlocking lever driving member 112 is pivotally connected to the outer side of the right side plate 103 of the drawer seat 100, and includes an interlocking end and a driving end respectively disposed at two ends of the pivot shaft, the interlocking end is provided with an interlocking boss 1121 facing the outer side of the drawer seat, the interlocking boss 1121 and a slide plate interlocking boss 1116 on the driving slide plate 111 are located at the same side of an interlocking lever pivot shaft 1123 (shown in fig. 6), a steel cable (interlocking rod) is connected to an end of the interlocking boss 1121, the driving end is provided with a lever driving boss 1122, and the driving boss 1122 extends into an inner wall of the side plate of the drawer seat and is matched with a driving end face 1321 on the pushing plate 132 (also referred to as a "pushing and swinging assembly") of the push plate 13.

The slide plate driving boss 1111 on the driving slide plate 111 and the lever driving boss 1122 on the interlocking lever driver 112 both act on the same side of the push plate 132 of the push plate 13, and the slide plate driving boss 1111 on the driving slide plate 111 and the lever driving boss 1122 on the interlocking lever driver 112 are disposed up and down in the height direction of the same side of the push plate 132.

The action process is as follows:

in the bypass type automatic transfer switch in which two automatic transfer switch bodies are bypassed each other as shown in fig. 1, the locking device 1 of the present invention is to realize the functions of the first set of interlocking mechanisms.

The structure of the second switch body 202 is the same as that of the first switch body 201, the first switch body 201 and the drawer seat corresponding thereto are arranged below, the second switch body 202 and the drawer seat corresponding thereto are arranged above, the locking device 1 is provided with two sets, one set is arranged on the right side plate of the drawer seat corresponding to the first switch body 201, the other set is arranged on the right side plate of the drawer seat corresponding to the second switch body 202, the interlocking boss 1121 of the interlocking lever driving piece 112 corresponding to the first switch body 201 is connected with the sliding plate interlocking boss 1116 of the sliding plate driving piece 11 corresponding to the second switch body 202 through an interlocking steel cable, the interlocking boss 1121 of the interlocking lever driving piece 112 corresponding to the second switch body 202 is connected with the sliding plate interlocking boss 1116 of the driving sliding plate 111 corresponding to the driving piece 11 arranged corresponding to the first switch body 201 through an interlocking steel cable (interlocking lever), and the two interlocking steel cables are arranged in parallel on the outer side of the right side plate of the drawer seat.

The driving slide 111 on the drawer seat is at the lowest position (corresponding to the opening position of the switch body) under the action of the driving slide return spring 1117, at this time, the slide driving boss 1111 on the driving slide 111 is separated from the driving end face 1321 of the pushing plate 132 of the pushing plate 13, the pushing plate 13 rotates counterclockwise under the action of the pushing plate return spring 1014, referring to fig. 19, the locking plate 12 is driven to move leftwards by the driving chute 1312 thereon, the handle transmission shaft 105 is in the unlocked state, that is, the handle is allowed to be inserted into the end portion of the handle transmission shaft 105 through the handle operation hole 10111 on the housing assembly 106, and the handle is rotated, so that the handle transmission shaft 105 is rotated to drive the body switch 200 to move in the drawer seat.

When the second switch body 202 is in the normal closing state or the standby closing state, the connecting rod driving boss 201121 serving as the third driving shaft is driven by the operating mechanism, and the rocker mechanism 2011 is in a folded state, i.e. a state close to the rotation center of the output main shaft of the operating mechanism, and at this time, when the switch body 202 is pushed into the corresponding drawer seat 100, the connecting rod driving boss 201121 serving as the third driving shaft is limited by the limiting boss 1115 on the driving slide plate 111 in the drawer seat 100 and cannot be pushed into the drawer seat 100.

When the second switch body 202 is opened, the link driving boss 201121 serving as the third driving shaft is driven by the operating mechanism, and the rocker mechanism 2011 is in an extended state, i.e. the first link 20111 and the second link 20112 are substantially in a straight line, and at this time, the link driving boss 201121 is far away from the rotation center of the output main shaft of the operating mechanism. At this time, when the second switch body 202 is pushed into its corresponding drawer seat 100, the link driving boss 201121 on the second switch body 202 is just inserted into the driving groove 1114 of the drawer seat slide assembly.

When the second switch body 202 enters the drawer seat 100, if the closing operation is performed, the link driving boss 201121 as the third driving shaft drives the driving slide 111 to move upwards against the spring force, so that the slide driving boss 1111 on the driving slide 111 moves from the disengaging end face 1323 of the push plate 13 to the driving end face 1321, and drives the push plate 13 to rotate clockwise against the spring force, referring to fig. 19, so that the locking plate 12 locks the handle transmission shaft 105, and at this time, the shaking operation of the drawer seat handle is limited, thereby prohibiting the user from pulling out under the closing condition of the second switch body 202, and improving the operation installability.

Referring to fig. 9 and fig. 3 in combination with fig. 20 to 21, in the state that the second switch body 202 is switched on (the common power source is switched on or the standby power source is switched on), at this time, the driving slide plate 111 disposed corresponding to the second switch body 202 side is located at the upper position, and since the slide plate interlocking boss 1116 on the driving slide plate 111 is connected with the interlocking boss 1121 on the interlocking lever driving member 112 disposed corresponding to the first switch body 201 side through the interlocking wire rope (lever), the link driving boss 1122 on the interlocking lever 122 is located at the lower position within the driving boss circular arc groove 1037 (shown in fig. 6) on the right side plate 103 due to the pulling force of the slide plate interlocking boss 1116 on the driving slide plate 111 on the interlocking lever driving member 112, which is separated from the driving end face 1321 on the pushing plate 132, which is the lever away position of the interlocking lever driving member 112. Thus, in the closing state of the second switch body 202, the interlocking lever driving member 112 corresponding to the first switch body 201 does not interfere with the push plate 13 corresponding to the first switch body 201, and at this time, whether the first switch body 201 can be swung in or out in the drawer seat 100 needs to see whether the first switch body 201 is in the closing state or the opening state.

If the first switch body 201 is in the closing state at this time, the rocker mechanism 2011 in the body is in a folded state, the link driving boss 201121 drives the driving slide 111 to be in an upper position, and the slide driving boss 1111 on the driving slide 111 acts on the driving end face 1321 on the push plate 13 corresponding to the first switch body 201, so that the push plate 13 rotates clockwise in the position of fig. 19, thereby driving the driving plate 121 to move rightwards, the driving plate 121 drives the latch plate 1228 to slide rightwards through the elastic member 123 (tension spring), and the latch 12281 is detected in the limit groove 1051 on the handle transmission shaft 105, thereby locking the handle transmission shaft 105 and blocking rotation thereof, and achieving the purpose that the handle cannot be rocked into or out under the closing state.

When the first switch body 201 is opened, the rocker mechanism 2011 in the body is in an extended state, namely in an unfolding state, so as to drive the driving sliding plate 111 to move to a lower position, the sliding plate driving boss 1111 on the driving sliding plate 111 enters the disengaging end face 1323 from the driving end face 1321 through the transition end face 1322, so that the push plate 13 rotates anticlockwise, thereby driving the driving plate 121 to move leftwards, the driving plate 121 drives the driving plate guide piece 1222 on the locking plate body 122 through the chute end face on the driving plate 121, thereby driving the locking plate body 122 to move leftwards, the lock tongue 12281 withdraws from the limit groove 1051, locking of the handle transmission shaft 105 is released, the handle transmission shaft 105 is allowed to rotate, and the first switch body 201 is allowed to swing in and swing out in the drawer seat 100.

In the above-mentioned second switch body 202 is in the open state (the double-open position of the common power supply and the standby power supply for the equally-divided gate), at this time, the driving slide plate 111 provided corresponding to the second switch body 202 side is located at the lower position, and since the slide plate interlocking boss 1116 on the driving slide plate 111 is connected with the interlocking boss 1121 on the interlocking lever driver 112 provided corresponding to the first switch body 201 side through the interlocking wire rope (lever), the interlocking lever 122 is rotated due to the driving of the interlocking boss 1121 on the interlocking lever driver 112 by the slide plate interlocking boss 1116 on the driving slide plate 111, and the link driving boss 1122 thereon is located at the upper position in the driving boss circular arc groove 1037 (shown in fig. 6) on the right side plate 103, and in this position, the link driving boss 1122 acts on the driving end face 1321 on the pushing plate 132, which is the leverage position of the interlocking lever driver 112. The action of the link drive boss 1122 causes the drive plate 131 to rotate, ultimately actuating the locking plate 12 to a locked position within the rotational path of the handle drive shaft 105 to block rotation of the handle drive shaft 105. Thus, in the open state of the second switch body 202, the interlocking lever driving piece 112 provided corresponding to the first switch body 201 interferes with the push plate 13 provided corresponding to the first switch body 201, and at this time, no matter where the driving slide plate 111 corresponding to the first switch body 201 is located, the handle transmission shaft 105 is already locked, that is, when the second switch body 202 is in the open state, the first switch body 201 cannot be swung in and out.

In conclusion, the purpose that the first switch can swing in and out under the self-opening state on the basis of the closing of the second switch in the double-extraction type automatic transfer switch which is a bypass is achieved, and similarly, the second switch can swing in and out under the self-opening state only on the basis of the closing of the first switch because the two switches are the bypass is achieved. The locking device 1 prevents the switches from being pulled out during closing, and simultaneously prevents the two switches from being powered off at the same time.

The bypass type automatic transfer switch in which two automatic transfer switch bodies are bypass is an embodiment of the present invention, and of course, the locking device 1 provided by the present invention is not limited to the application in which two automatic transfer switch bodies are bypass, i.e., double extraction type, but may be: wherein the automatic transfer switch is a draw-out type, and the bypass switch is a fixed bypass type automatic transfer switch. The upper bypass switch is fixed, no drawer seat exists, the upper bypass switch cannot swing in and out, the lower automatic transfer switch is provided with a drawer seat, the lower automatic transfer switch can swing in and out in the drawer seat 100, the right side of the upper bypass switch is correspondingly provided with a driving sliding plate 111, an interlocking driving piece 112 is not arranged, a push plate 13 is not arranged, a locking plate 12 is not arranged, the lower extraction type automatic transfer switch is correspondingly provided with the driving sliding plate 111, the interlocking lever driving piece 112, the push plate 13 and the locking plate 12, only one interlocking lever (steel cable) is needed, namely one end is connected with a sliding plate interlocking boss 1116 on the driving sliding plate 111 corresponding to the upper bypass switch, the other end is connected with an interlocking boss 1121 on the interlocking lever driving piece 112 corresponding to the lower extraction type automatic transfer switch body, the lower automatic transfer switch can be ensured to swing in and out when the lower automatic transfer switch is opened, the functions of preventing the switches from being extracted during switching on and simultaneously preventing the two switches from being simultaneously powered off are also realized.

Of course, the locking of the transmission 104 is not limited to the form of blocking the rotation of the handle transmission shaft 105 by driving the locking plate 12 into the rotation locus of the handle transmission shaft 105 in the above-described embodiment, but may be a form of driving the locking plate 12 to a position shielding the handle operation hole 10111 and the handle operation through hole 10116 so that the handle cannot be docked with the handle transmission shaft 105 and the handle transmission shaft 105 cannot be driven to rotate.

According to the invention, the locking device is arranged on the drawer seat, so that the switch body is prevented from being pulled out during closing, and the bypass type automatic transfer switch has the function of preventing the two switches from being powered off simultaneously while preventing the switch body from being pulled out in a closing state. The accurate and reliable switch action is ensured, so that the operation safety of a user is improved.

Claims

1. The bypass type double-power-supply automatic transfer switch comprises a drawing frame (300), and a first switch body (201) and a second switch body (202) which are stacked up and down, and is characterized in that a transmission device (104) for driving the corresponding switch bodies to move in the drawing frame respectively is arranged between each switch body and the drawing frame (300), a locking device (1) is further arranged between each switch body and the drawing frame (300), the locking device (1) is associated with the opening and closing state of the corresponding switch body, the corresponding transmission device (104) is locked when the corresponding switch body is in the closing state, the switch body is prevented from moving in the drawing frame (300), the locking of the corresponding transmission device (104) is released when the corresponding switch body is in the opening state, a connecting mechanism (301) is arranged between the two locking devices (1), and when one of the two switch bodies of the first switch body (201) and the second switch body (202) is in the opening state, the corresponding locking device (1) is used for driving the other locking device (104) through the connecting mechanism (301).

2. A bypass type dual power automatic transfer switch according to claim 1, characterized in that the transmission means (104) comprises a handle transmission shaft (105), the handle transmission shaft (105) being provided on the drawer frame (300) in the moving direction of the switch body, and the switch body being moved in the drawer frame (300) by the rotation of the handle transmission shaft (105); the locking device (1) comprises a driving sliding plate (111) which is slidingly arranged on the drawing frame (300) along the stacking direction of the two switch bodies, an interlocking lever driving piece (112) which is rotationally arranged on the drawing frame (300), a push plate (13) which is provided with a driving plate (131) and a pushing plate (132) and a locking plate (12) which is radially slidingly arranged on the drawing frame (300) along a handle transmission shaft (105), wherein the driving plate (131) is rotationally arranged on the drawing frame (300) in a horizontal state and is matched with the locking plate (12), the pushing plate (132) extends in a longitudinal state and is matched with the driving sliding plate (111) and the interlocking lever driving piece (112), the interlocking lever driving piece (112) which corresponds to the first switch body (201) and the interlocking lever driving piece (112) which corresponds to the second switch body (202) are connected through one interlocking lever in a connecting mechanism (301), the interlocking driving plate (111) which corresponds to the first switch body (201) and the second switch body (202) are connected through one interlocking lever in the connecting mechanism (301), the driving slide plate (111) is driven to act between a slide plate driving position corresponding to the switch-on state of one switch body and a slide plate disengaging position corresponding to the switch-off state of the other switch body by the switching action of the corresponding switch body between the switch-on state and the switch-off state, and is transmitted to an interlocking lever driving piece (112) corresponding to the other switch body through an interlocking lever to act between a lever far position and a lever pushing position; when the interlocking lever driving piece (112) is at a lever far-away position corresponding to the same switch body, if the driving sliding plate (111) is at a sliding plate disengaging position, the action on the pushing plate (132) is released, the driving plate (131) acts on the locking plate (12), the locking plate (12) is positioned at an unlocking position outside the rotating track of the handle transmission shaft (105) of the switch body, the rotation of the handle transmission shaft (105) is released, if the driving sliding plate (111) is at a sliding plate driving position, the driving sliding plate (111) acts on the pushing plate (132), the driving plate (131) acts on the locking plate (12), and the locking plate (12) is positioned at a locking position in the rotating track of the handle transmission shaft (105) of the switch body, and the handle transmission shaft (105) is blocked from rotating; when the interlocking lever driving piece (112) is positioned at the lever pushing position corresponding to the same switch body, the interlocking lever driving piece (112) acts on the pushing plate (132), and the driving plate (131) acts on the locking plate (12) to enable the locking plate (12) to be positioned at the locking position in the rotating track of the handle transmission shaft (105) of the switch body so as to block the handle transmission shaft (105) from rotating.

3. A bypass-type dual-power automatic transfer switch according to claim 2, characterized in that the drawer frame (300) comprises a drawer seat (100) corresponding to the first switch body (201), another drawer seat corresponding to the second switch body (202) and having the same structure as the drawer seat (100), a pair of drawer frame side plates (302), the first switch body (201) and the second switch body (202) are identical in structure, two drawer seats are stacked, a pair of side plates are respectively fixed with the two drawer seats and are separately arranged at both sides of the two drawer seats, the drawer seat (100) comprises a bottom plate (101), a left side plate (102) and a right side plate (103), the transmission device (104) is arranged in the drawer seat (100) corresponding to each, the driving slide plate (111) is arranged at one side of the right side plate (103) of the drawer seat (100) corresponding to each, the interlocking lever driving piece (112) is arranged at one side of the right side plate (103) opposite to the left side plate (102) of the drawer seat (100) corresponding to each other, the driving slide plate (131) is arranged at one end of the driving slide plate (101) toward the right side plate (132) corresponding to each end.

4. A bypass type dual-power automatic transfer switch according to claim 3, wherein the locking plate (12) comprises a driving plate (121), a locking plate body (122) and an elastic member (123), the driving plate (121) is slidably matched with one end of the locking plate body (122) towards the right side plate (103), the driving plate (121) is matched with the driving plate (131), the elastic member (123) is connected between the driving plate (121) and the locking plate body (122), and the driving plate (131) drives the driving plate (121) and then the elastic member (123) pulls the locking plate body (122) to act in the process that the driving plate (131) drives the locking plate (12) to slide from the unlocking position to the locking position; while the driving plate (131) drives the locking plate (12) to slide from the locking position to the unlocking position, the driving plate (131) drives the driving plate (121), and the driving plate (121) pushes the locking plate body (122) to act.

5. The bypass type double power automatic transfer switch as claimed in claim 4, wherein the transmission sheet (121) comprises a slide sheet (1211) and a transmission sheet (1212), the slide sheet (1211) and the transmission sheet (1212) are formed as a single body structure with each other, and the slide sheet (1211) is parallel to the lock sheet body (122), the transmission sheet (1212) is formed by folding and unfolding a bottom portion of the slide sheet (1211) toward the lock sheet body (122), a housing mounting surface (1011) is formed on a side of the base plate (101) toward the lock sheet body (122), a housing guide post (1012) is provided on the housing mounting surface (1011) and on a side toward the base plate (101), a lock sheet body slide groove (1221) is provided on the lock sheet body (122), the slide sheet (122) is guided by the housing mounting surface guide post (1012) in the lock sheet body slide groove (1221) with respect to the lock sheet body (1011), and a transmission sheet guide (1222) is provided on the slide sheet (121) toward the slide sheet (1222) is provided on one end (121), the transmission piece guide (1222) passes through the transmission piece guide sliding groove (12111), is positioned on the locking plate body (122) and guides the sliding of the transmission piece (121), and a driving column (12121) is fixed on the transmission bottom piece (1212); a drive plate pivot (1015) is provided on the base plate (101) and at a position corresponding to the drive plate (131); a pivot hole (1311) and a drive sliding groove (1312) are formed in the drive plate (131), the pivot hole (1311) is in pivot fit with the drive plate pivot (1015), and the drive sliding groove (1312) is in fit with the drive column (12121) on the transmission bottom plate (1212).

6. A bypass type dual power automatic transfer switch as claimed in claim 5 wherein a handle operation via hole (1223) is provided in the locking plate body (122), a latch plate (1228) is provided at a side of the locking plate body (122) facing away from the slide plate (1211) and at a position corresponding to the handle operation via hole (1223), the latch plate (1228) has a latch tongue (12281), and the latch tongue (12281) is inserted into one end of the handle operation via hole (1223); the handle transmission shaft (105) is inserted with the handle operation through hole (1223) and limiting grooves (1051) are uniformly distributed on the circumferential surface of the handle transmission shaft (105) at intervals, the limiting grooves (1051) extend in an axial state parallel to the handle transmission shaft (105), when the locking plate body (122) is located at the locking position, the handle transmission shaft (105) is located at one end, with the lock tongue (12281), of the handle operation through hole (1223), and the lock tongue (12281) is inserted into the limiting grooves (1051).

7. The bypass type dual-power automatic transfer switch as claimed in claim 6, wherein a slide plate driving boss (1111) is provided on the driving slide plate (111), a driving end face (1321) and a disengaging end face (1323) are sequentially formed on a side surface of the pushing plate (132) from top to bottom along a height direction of the automatic transfer switch, and the disengaging end face (1323) is concavely formed on the driving end face (1321) through the transition end face (1322); when the switch body is closed, the driving slide plate (111) is in a slide plate driving position far away from the bottom plate (101), the slide plate driving boss (1111) acts on the driving end face (1321), and when the switch body is opened, the driving slide plate (111) is in a slide plate disengaging position close to the bottom plate (101), and the slide plate driving boss (1111) acts on the disengaging end face (1323).

8. A bypass type dual power automatic transfer switch according to claim 7, characterized in that a drive slide chute (1112) is provided on the drive slide (111), a drive slide guide post (1113) is provided on the left side of the right side plate (103) at a position corresponding to the drive slide chute (1112), the drive slide (111) is guided by the drive slide guide post (1113) accommodated in the drive slide chute (1112), a drive groove (1114) is provided on the drive slide (111) and at the upper portion thereof in a lateral state, an opening is formed toward one end of the housing mounting surface (1011), and a limit boss (1115) is provided at the upper portion corresponding to the opening; each switch body comprises an operating mechanism and a contact system, the operating mechanism comprises a main shaft, the contact system comprises a moving contact driven by the main shaft to rotate and a pair of fixed contacts symmetrically arranged on two sides of the moving contact, a rocker mechanism (2011) is arranged on the main shaft, the rocker mechanism (2011) comprises a first connecting rod (20111) and a second connecting rod (20111) with one end connected with one end of the first connecting rod (20111) which are sleeved on the main shaft in a central way, a connecting rod driving boss (201121) is arranged on the other end of the second connecting rod (20112), when the first switch body is in a closing state, the moving contact of the contact system and one of the pair of fixed contacts are closed, the first connecting rod (20111) and the second connecting rod (20112) are in a zigzag state to enable the rocker mechanism (2011) to be in a folded state, the connecting rod driving boss (201121) is stopped by the limiting boss (1115) to enable the switch body to enter the drawer seat (100) from the outside, when the switch body is in a separating state, a connecting rod driving boss (2011) is in a straight line state to enable the first connecting rod (2011) and the second connecting rod (2011) to be in a straight line state to be in which the connecting rod driving boss (1114) is in a separated state from the first connecting rod (2011) and the middle position to be in which the driving boss (2011) is in a straight state), and when the switch body enters the drawer seat (100), the connecting rod driving boss (201121) pushes the upper wall surface of the driving groove (1114) to enable the driving slide plate (111) to move from the slide plate disengaging position to the slide plate driving position in the process of switching-on and switching-off actions of the switch body from the switching-off mode.

9. A bypass type double power automatic transfer switch as claimed in claim 8 wherein an interlock boss (1121) is provided at one end of the interlock lever driving member (112), and a lever driving boss (1122) is provided at the other end, the lever driving boss (1122) passing through the right side plate (103) and extending to the left side of the right side plate (103); a slide plate interlocking boss (1116) extending to the right side of the right side plate is also arranged on the driving slide plate (111); the lever driving boss (1122) on each interlocking lever driving member (112) is engaged with the pushing plate (132) of the corresponding pushing plate (13), and the interlocking boss (1121) of the interlocking lever driving member (112) provided corresponding to one switch body is connected with the slide plate interlocking boss (1116) of the driving slide plate (111) provided corresponding to the other switch body through one interlocking lever in the connecting mechanism (301).

10. A bypass type double power automatic transfer switch according to claim 9, wherein when one of the first switch body (201) and the second switch body (202) is in a closing position, the driving slide plate (111) corresponding to the one of the switch bodies in the closing position is in a slide plate driving position, and one interlocking lever of the connecting mechanism (301) drives an interlocking boss (1121) of an interlocking lever driving member (112) provided corresponding to the other switch body and moves the lever driving boss (1122) away from a driving end face (1321) on a pushing plate (132) of the push plate (13) provided corresponding to the other switch body; when one of the first switch body (201) and the second switch body (202) is at the opening position, the driving slide plate (111) corresponding to the one of the switch bodies at the opening position is at the slide plate disengaging position, and one interlocking lever in the connecting mechanism (301) drives an interlocking boss (1121) of an interlocking lever driving piece (112) corresponding to the other switch body to push a driving end face (1321) on a pushing plate (132) of a pushing plate (13) corresponding to the other switch body through the lever driving boss (1122).