A locking device for a dual power transfer switch

Abstract

The utility model discloses a locking device of double power supply change-over switch, this locking device of double power supply change-over switch includes the casing, respectively installs on the closing assembly, micro -switch and locking assembly of casing, locking assembly includes the lock and the interlock piece of setting in the casing of rotation installation on the casing, and lock can be opposite the casing and rotate back and forth between a locking position and an unlocking position, the interlock piece includes the locking portion and trigger portion with the lock action, and lock is located the locking position, and the locking portion is opposite and meets with closing assembly, and trigger portion is opposite and meets on micro -switch, and lock is located the unlocking position, and the locking portion is opposite and meets with closing assembly, and trigger portion releases micro -switch, the utility model discloses through mechanical structure protection to the spacing of closing assembly, and, electrical structure protection to the cut-off of closing assembly circuit, double protection double power supply change-over switch opening locking state.

Description

Technical Field

[0001] This utility model relates to the field of electrical technology, and in particular to a locking device for a dual power supply changeover switch. Background Technology

[0002] Dual power transfer switches are widely used in industries, medical facilities, data centers, rail transportation, and other places with high power requirements. Any interruption of power switching can have serious consequences. Therefore, after a certain number of years of use, the circuit system needs to be periodically inspected and maintained. At this time, the dual power transfer switch needs to be locked to prevent accidental closing by non-professionals during the inspection and maintenance period, which could cause personal injury or death. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a locking device for a dual power supply changeover switch.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A locking device for a dual power supply transfer switch, comprising:

[0006] The housing, the closing assembly and the micro switch respectively mounted on the housing;

[0007] The locking assembly includes a rotary lock rotatably mounted on the housing and an interlocking element disposed within the housing;

[0008] The rotary lock can rotate back and forth between a locked position and an unlocked position relative to the housing;

[0009] The interlocking component includes a locking part and a triggering part that move in conjunction with the rotary lock;

[0010] When the rotary lock is in the locked position, the locking part abuts against the closing assembly to lock the closing assembly, and the triggering part abuts against the micro switch to trigger the micro switch; when the rotary lock is in the unlocked position, the locking part is misaligned with the closing assembly to release the locking of the closing assembly, and the triggering part releases the micro switch to release the triggering of the micro switch.

[0011] Furthermore, in the locking device of the dual power transfer switch, the closing assembly preferably includes a bracket rotatably mounted in the housing and a magnetic drive assembly mounted in the housing, the magnetic drive assembly being used to drive the bracket to rotate back and forth between an open position and a closed position relative to the housing;

[0012] The bracket includes a locking plate;

[0013] When the bracket is in the open position, the rotary lock is in the locked position, and the locking part abuts against the top of the locking plate to lock the locking plate; when the bracket is in the closed position, the rotary lock is in the unlocked position, and the locking part is misaligned with the locking plate.

[0014] Furthermore, in the locking device of the dual power supply changeover switch, preferably, the top of the locking plate is provided with an unclosed limiting groove;

[0015] When the bracket is in the open position, the rotary lock is in the locked position, and the locking part abuts against the groove wall of the limiting groove.

[0016] Furthermore, in the locking device of the dual power transfer switch, the magnetic drive assembly preferably includes a second rotating shaft, a connecting rod, a moving iron core, and a closing coil;

[0017] The second rotating shaft is mounted on the bracket. A sliding groove is provided at one end of the connecting rod near the bracket, and the vertical length of the sliding groove is greater than the diameter of the second rotating shaft. The connecting rod is movably mounted on the second rotating shaft through the sliding groove. The moving iron core is located at the end of the connecting rod away from the second rotating shaft. The moving iron core extends into the closing coil and can extend out of the housing. The closing coil is installed inside the housing.

[0018] Furthermore, in the locking device of the dual power transfer switch, the closing assembly preferably includes a first rotating shaft, and the bracket is rotatably mounted in the housing via the first rotating shaft.

[0019] Furthermore, in the locking device of the dual power supply transfer switch, the micro switch preferably includes a housing body, a trigger terminal, a common terminal, a normally closed terminal, and a normally open terminal;

[0020] The common terminal is disposed within the housing body, and the trigger terminal, normally closed terminal, and normally open terminal are all disposed on the housing body; the trigger terminal cooperates with the common terminal; the normally closed terminal is electrically connected to the closing coil;

[0021] When the rotary lock is in the locked position, the trigger part abuts against the trigger end; when the rotary lock is in the locked position, the trigger part releases the trigger end.

[0022] When the trigger terminal is triggered, the common terminal is electrically connected to the normally open terminal;

[0023] When the trigger terminal is de-triggered, the common terminal is electrically connected to the normally closed terminal.

[0024] Furthermore, in the locking device of the dual power transfer switch, preferably the locking part is arranged parallel to the axis of the rotary lock, and the triggering part is arranged perpendicular to the axis of the rotary lock;

[0025] When the bracket is in the open position and the rotary lock is in the locked position, the locking part and the locking plate form a cross structure, and the triggering part and the triggering end form a parallel structure.

[0026] When the bracket is in the closed position and the rotary lock is in the unlocked position, the locking part is arranged parallel to the locking plate, and the triggering part is perpendicular to the triggering end.

[0027] Furthermore, in the locking device of the dual power transfer switch, the locking component preferably further includes an unlocking member, which is inserted into the rotary lock to rotate the rotary lock back and forth between the locked position and the unlocked position.

[0028] The upper surface of the housing has a fixing groove, and the rotary lock is embedded in the fixing groove.

[0029] Furthermore, in the locking device of the dual power transfer switch, the interlocking component preferably includes a fixing part, the locking part, the triggering part and the fixing part are integrally formed, and the fixing part is installed at the bottom of the rotary lock.

[0030] Furthermore, in the locking device of the dual power supply changeover switch, the housing preferably includes a base plate and a face shield covering the base plate.

[0031] The present invention has the following advantages: it limits the closing component through mechanical structure protection and cuts off the circuit of the closing component through electrical structure protection, and locks the opening state of the dual protection dual power transfer switch to avoid personnel injury or death caused by unprofessional operation during maintenance. It is small in size, simple in structure, easy to operate, reliable and safe. Attached Figure Description

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0033] Figure 1 This is a three-dimensional structural schematic diagram of a dual power supply transfer switch in some embodiments of this utility model;

[0034] Figure 2 yes Figure 1 The diagram shows a three-dimensional structure with the closing component in the open position and the locking component in the unlocked position after part of the mask is removed.

[0035] Figure 3 yes Figure 2The diagram shows a three-dimensional structure with the closing component in the open position and the locking component in the locked position.

[0036] Figure 4 yes Figure 1 The diagram shows a three-dimensional structure with the closing component in the closed position and the locking component in the unlocked position.

[0037] Figure 5 yes Figure 3 The diagram shows a top view of the structure.

[0038] Figure 6 yes Figure 4 The diagram shows a top view of the structure.

[0039] Figure 7 yes Figure 2 A three-dimensional structural diagram of the closing assembly shown;

[0040] Figure 8 yes Figure 2 A three-dimensional structural diagram of the micro switch and closing coil is shown.

[0041] Figure 9 yes Figure 2 A three-dimensional structural diagram of the locking component shown;

[0042] Figure 10 yes Figure 9 A three-dimensional structural diagram of the interlocking component shown. Detailed Implementation

[0043] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0044] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0045] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0046] The technical solution adopted by this utility model to solve its technical problem is:

[0047] like Figures 1 to 2 As shown, some embodiments of this utility model disclose a locking device for a dual-power transfer switch. In some embodiments, this locking device may include: a housing 10, a closing assembly 20, a micro switch 30, and a locking assembly 40. The closing assembly 20, micro switch 30, and locking assembly 40 are respectively installed within the housing 10. The micro switch 30 is electrically connected to the closing assembly 20, energizing the closing assembly 20 to drive the main circuit structure of the dual-power transfer switch to perform closing or opening operations. The locking assembly 40 cooperates with the closing assembly 20 and the micro switch 30. It can be understood that the locking assembly 40 can rotate back and forth between a locked position and an unlocked position relative to the housing 10; when the locking assembly 40 is in the locked position (see reference...), Figure 3On the one hand, it abuts against the closing assembly 20 to lock the closing assembly 20, preventing it from moving, thereby mechanically preventing the closing assembly 20 from driving the main circuit structure of the dual power transfer switch to close or open. On the other hand, the locking assembly 40 abuts against the micro switch 30 to trigger the disconnection of the circuit between the micro switch 30 and the closing assembly 20, thereby electrically preventing the closing assembly 20 from driving the main circuit structure of the dual power transfer switch to close or open.

[0048] Continue to refer to Figure 2 When the locking component 40 is in the unlocked position, the locking component 40 is misaligned with the closing component 20 to release the mechanical locking of the closing component 20. The locking component 40 releases the micro switch 30, so that the circuit between the micro switch 30 and the closing component 20 is connected.

[0049] like Figure 1 Right now Figure 2 As shown, in some embodiments, the housing 10 may include a base plate 11 and a face shield 12 covering the base plate 11. The base plate 11 and the face shield 12 are combined to form a box structure. In other embodiments, the housing 10 may include a base plate with two side panels protruding upwards from the edges of two opposite sides (left and right sides in the figure). A side panel is disposed between one side of the two side panels, and another side panel is disposed between the other side of the side panels. This side panel is integrally formed with a top plate disposed between the top of the side panels. Of course, the structure of the housing 10 may be configured as a cuboid structure, an elliptical structure, etc., depending on the structure of the dual power supply switch.

[0050] like Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, the closing assembly 20 may include a bracket 21, a first rotating shaft 22, and a magnetic drive assembly 23. The bracket 21 is rotatably mounted within the housing 10 via the first rotating shaft 22, and the magnetic drive assembly 23 is movably connected to the bracket 21. Understandably, energizing the magnetic drive assembly 23 allows it to move, thereby driving the main circuit structure of the dual-power transfer switch to perform closing or opening operations. During its movement, the magnetic drive assembly 23 causes the bracket 21 to rotate, allowing the bracket 21 to rotate back and forth relative to the housing 10 between an open position and a closed position. It should be noted that when the magnetic drive assembly 23 drives the main circuit structure of the dual-power transfer switch to close, the bracket 21 is in the closed position; when the magnetic drive assembly 23 drives the main circuit structure of the dual-power transfer switch to open, the bracket 21 is in the open position.

[0051] When bracket 21 is in the open position (please refer to...) Figure 3When the locking component 40 is in the locked position and abuts against the top of the bracket 21, it locks the bracket 21, thereby restricting the movement of the magnetic drive component 23; when the bracket 21 is in the closed position (see reference...), Figure 4 The locking component 40 is in the unlocked position and is offset from the bracket 21. The magnetic drive component 23 can be moved after being powered on.

[0052] Continue to refer to Figure 2 and Figure 3 It should also be noted that the bracket 21 rotates around the axis of the first rotating shaft 22. When the bracket 21 is in the open position, the end of the bracket 21 near the magnetic drive assembly 23 rotates upward in an arc to the closed position; when the bracket 21 is in the closed position, the end of the bracket 21 near the magnetic drive assembly 23 rotates downward in an arc to the open position. In other words, when the bracket 21 is in the open position, the locking assembly 40 abuts against the top of the bracket 21, preventing the bracket 21 from rotating upward from the open position to the closed position. Therefore, the magnetic drive assembly 23 cannot move, meaning the main circuit structure of the dual-power transfer switch cannot be driven by the magnetic drive assembly 23 to perform closing or opening operations. Furthermore, when the bracket 21 is in the open position, the locking assembly 40 abuts against the top of the bracket 21, preventing the bracket 21 from rotating upward from the open position to the closed position. The bottom of the bracket 21 abuts against the inner bottom wall of the housing 10, preventing the bracket 21 from rotating downward from the open position.

[0053] For reference Figure 7 In some embodiments, the bracket 21 may include a locking plate 211, a base plate, a support plate 212, and a connecting plate 213. The locking plate 211 and the support plate 212 are respectively upwardly protruding from opposite edges of the base plate. The connecting plate 213 is disposed between the locking plate 211 and the support plate 212 and is upwardly protruding to connect to the edge of the base plate. A first rotating shaft 22 is installed through the locking plate 211 and the support plate 212, with one end passing through the support plate 212 rotatably mounted on the aforementioned enclosure of the housing 10.

[0054] In some embodiments, the distance from the axis of the first rotating shaft 22 to the end of the locking plate 211 near the micro switch 30 is longer than the distance from the axis of the first rotating shaft 22 to the end of the locking plate 211 away from the micro switch 30.

[0055] Refer again Figure 4 In some embodiments, the top of the locking plate 211 is provided with an unclosed limiting groove 2110. When the bracket 21 is in the open position and the locking component 40 is in the locked position, the locking component 40 abuts against the groove wall of the limiting groove 2110. Similarly, the side wall of the limiting groove 2110 can abut against the locking component 40 to reduce the movement of the bracket 21 after it is abutted.

[0056] In other embodiments, an end plate 214 is also provided on the side of the bracket 21 near the magnetic drive assembly 23. A fixing rod is provided on the end plate 214, and a pulling plate is vertically mounted on the fixing rod. A pulling rod is provided on the pulling plate, and the pulling rod is perpendicular to the pulling plate. A Y-shaped groove is provided on the side wall of the housing 10, and the pulling rod is movably disposed in the Y-shaped groove. Understandably, when the bracket 21 rotates back and forth between the open and closed positions, the pulling rod also moves along the Y-shaped groove. The groove wall at the top of the Y-shaped groove limits the pulling rod, thereby limiting the rotational critical point of the bracket 21 in the closed and open positions, so that after the bracket 21 rotates to a certain angle, the closed and open positions no longer change.

[0057] like Figure 4 , Figure 5 and Figure 7 As shown, in some embodiments, the magnetic drive assembly 23 may include a second rotating shaft 231, a connecting rod 232, a moving iron core 233, and a closing coil 234. The second rotating shaft 231 is mounted on the bracket 21. One end of the connecting rod 232 has a sliding groove, and the connecting rod 232 is connected to the second rotating shaft 231 through the sliding groove. The moving iron core 233 is located at the end of the connecting rod 232 opposite to the sliding groove, extends into the closing coil 234, and can extend out of the housing 10. The closing coil 234 is housed within the housing 10. Understandably, when the closing coil 234 is energized, it generates a magnetic field that drives the moving iron core 233. The moving iron core 233 pulls the bracket 21 through the connecting rod 232, causing the bracket 21 to rotate back and forth between the closed and open positions along the axis of the first rotating shaft 22.

[0058] It should be noted that the movement of the moving iron core 233 away from the bracket 21 drives the dual power supply transfer switch to open, and the movement of the moving iron core 233 towards the bracket 21 drives the dual power supply transfer switch to close.

[0059] In some embodiments, the length of the sliding groove is greater than the diameter of the second rotating shaft 231 (not shown in the figure). The second rotating shaft 231 can slide up and down within the sliding groove so that when the connecting rod 232 pushes the bracket 21 to rotate, the bracket 21 avoids causing the connecting rod 232 to rotate, thereby preventing the moving iron core 233 from tilting and touching the inner wall of the closing coil 234 within the closing coil 234. Of course, the moving iron core 233 can have a certain tilt angle within the closing coil 234, meaning that the connecting rod 232 can also rotate with a certain tendency following the bracket 21. These tolerances are permissible in product use.

[0060] like Figure 6 and Figure 8As shown, in some embodiments, the micro switch 30 may include a housing 31, a trigger terminal 32, a common terminal, a normally closed terminal, and a normally open terminal. The common terminal is located inside the housing 31, while the trigger terminal 32, the normally closed terminal, and the normally open terminal are all located on the housing 31. The trigger terminal 32 cooperates with the common terminal; the normally closed terminal is electrically connected to the closing coil 234.

[0061] For reference Figure 3 and Figure 5 When the locking component 40 is in the locked position, the locking component 40 is pressed to the trigger end 32, and then the trigger end 32 drives the common end to contact (electrically connect) to the normally open end, thereby disconnecting the circuit between the micro switch 30 and the closing coil 234; that is, when the circuit between the micro switch 30 and the closing coil 234 is disconnected, the closing coil 234 cannot be energized by the micro switch 30, and the closing coil 234 cannot generate a magnetic field to drive the moving iron core 233, so as to form electrical protection.

[0062] For reference Figure 2 and Figure 6 When the locking component 40 is in the unlocked position, the locking component 40 releases the trigger end 32, and then the trigger end 32 drives the common end to contact (electrically connect) to the normally closed end, thereby connecting the circuit between the micro switch 30 and the closing coil 234; that is, when the circuit between the micro switch 30 and the closing coil 234 is connected, the closing coil 234 is powered through the micro switch 30, and the closing coil 234 generates a magnetic field to drive the moving iron core 233.

[0063] like Figure 9 and Figure 10 As shown, in some embodiments, the locking assembly 40 may include a rotary lock 41, an interlocking member 42, and an unlocking member. The upper surface of the housing 10 has a fixing groove, the rotary lock 41 is embedded in the fixing groove, the lock opening of the rotary lock 41 is exposed, the lock body of the rotary lock 41 is inside the housing 10, the interlocking member 42 is installed at the bottom of the rotary lock 41 and rotates with the lock cylinder of the rotary lock 41; the unlocking member is inserted into the lock opening of the rotary lock 41 to rotate the lock cylinder of the rotary lock 41 back and forth between the locked position and the unlocked position.

[0064] Refer again Figure 3 and Figure 4 In some embodiments, the interlocking member 42 may include a fixing part 423, a locking part 421, and a triggering part 422. The fixing part 423 is mounted on the bottom of the lock cylinder of the rotary lock 41, the locking part 421 is vertically disposed at the bottom of the fixing part 423, and the triggering part 422 is horizontally disposed on one side of the fixing part 423. The locking part 421 is parallel to the axis of the rotary lock 41, and the triggering part 422 is perpendicular to the axis of the rotary lock 41.

[0065] Understandably, when the rotary lock 41 is in the locked position and the bracket 21 is in the open position, the locking part 421 abuts against the bottom groove wall of the limiting groove 2110 on the top of the locking plate 211 to prevent the locking plate 211 from rotating upward to the closed position; similarly, the trigger part 422 abuts against the trigger end 32 of the micro switch 30 so that the trigger end 32 drives the common end to move and contact the normally open end.

[0066] When the rotary lock 41 is in the unlocked position and the bracket 21 is in the closed position, the locking part 421 is misaligned with the locking plate 211, and the trigger part 422 releases the trigger end 32.

[0067] Refer again Figure 3 In some embodiments, when the rotary lock 41 is in the locked position and the bracket 21 is in the open position, the locking part 421 and the locking plate 211 form a cross structure, and the trigger part 422 and the trigger end 32 form a parallel structure. See also... Figure 4 When the rotary lock 41 is in the unlocked position and the bracket 21 is in the closed position, the locking part 421 is parallel to the locking plate, and the trigger part 422 is perpendicular to the trigger end 32.

[0068] In other words, when the bracket 21 is in the open position: the rotary lock 41 drives the locking part 421 and the trigger part 422 to rotate, and the parallel structure of the locking part 421 and the locking plate 211 rotates to the cross structure of the locking part 421 and the locking plate 211; similarly, the trigger part 422 rotates from the structure state perpendicular to the trigger end 32 to the structure state of the trigger part 422 parallel to the trigger end 32.

[0069] The locking device of this dual power supply transfer switch will be further explained below in conjunction with its usage.

[0070] When the locking device of the dual power transfer switch is in use: the bracket 21 can rotate downward from the closed position to the open position along the axis of the first rotating shaft 22. At this time, the rotary lock 41 can drive the interlocking member 42 to rotate, so that the parallel structure of the locking part 421 and the locking plate 211 rotates to a cross structure state, that is, the locking part 421 abuts against the top of the locking plate 211, so that the bracket 21 is kept in the open position, thereby ensuring that the moving iron core 233 cannot move to close the main circuit structure of the dual power transfer switch, so as to form mechanical structure protection.

[0071] Similarly, the vertical structure of the trigger part 422 and the trigger end 32 rotates to a parallel structure, so that the trigger part 422 presses against the trigger end 32, and then the trigger end 32 drives the common terminal to contact (electrically connect) to the normally open terminal, thereby disconnecting the circuit between the micro switch 30 and the closing coil 234; that is, when the circuit between the micro switch 30 and the closing coil 234 is disconnected, the micro switch 30 cannot energize the closing coil 234, and the closing coil 234 cannot generate a magnetic field to drive the moving iron core 233 to close the main circuit structure of the dual power supply transfer switch, so as to form electrical structure protection.

[0072] It should be noted that, for those skilled in the art, without departing from the concept of this utility model, the above-mentioned technical features can be freely combined, and several modifications and improvements can be made, all of which fall within the protection scope of this utility model.

Claims

1. A locking device for a dual-power transfer switch, characterized in that, include: Housing (10), closing assembly (20) and micro switch (30) respectively mounted on the housing (10); The locking assembly (40) includes a rotary lock (41) rotatably mounted on the housing (10) and an interlocking member (42) disposed within the housing (10); The rotary lock (41) can rotate back and forth between a locked position and an unlocked position relative to the housing (10); The interlocking member (42) includes a locking part (421) and a triggering part (422) that move with the rotary lock (41); When the rotary lock (41) is in the locked position, the locking part (421) abuts against the closing assembly (20) to lock the closing assembly (20), and the triggering part (422) abuts against the micro switch (30) to trigger the micro switch (30); when the rotary lock (41) is in the unlocked position, the locking part (421) is misaligned with the closing assembly (20) to release the locking of the closing assembly (20), and the triggering part (422) releases the micro switch (30) to release the triggering of the micro switch (30).

2. The locking device for the dual power supply transfer switch according to claim 1, characterized in that, The closing assembly (20) includes a bracket (21) rotatably mounted in the housing (10) and a magnetic drive assembly (23) mounted in the housing (10). The magnetic drive assembly (23) is used to drive the bracket (21) to rotate back and forth between an open position and a closed position relative to the housing (10). The bracket (21) includes a locking plate (211); When the bracket (21) is in the open position, the rotary lock (41) is in the locked position, and the locking part (421) abuts against the top of the locking plate (211) to lock the bracket; when the bracket (21) is in the closed position, the rotary lock (41) is in the unlocked position, and the locking part (421) is misaligned with the locking plate (211).

3. The locking device for the dual power supply transfer switch according to claim 2, characterized in that, The top of the locking plate (211) is provided with an unclosed limiting groove (2110); When the bracket (21) is in the open position, the rotary lock (41) is in the locked position, and the locking part (421) abuts against the groove wall of the limiting groove (2110).

4. The locking device for the dual power supply transfer switch according to claim 2, characterized in that, The magnetic drive assembly (23) includes a second rotating shaft (231), a connecting rod (232), a moving iron core (233), and a closing coil (234); The second rotating shaft (231) is mounted on the bracket (21). The connecting rod (232) has a sliding groove at one end near the bracket (21), and the vertical length of the sliding groove is greater than the diameter of the second rotating shaft (231). The connecting rod (232) is movably mounted on the second rotating shaft (231) through the sliding groove. The moving iron core (233) is located at the end of the connecting rod (232) away from the second rotating shaft (231). The moving iron core (233) extends into the closing coil (234) and can extend out of the housing (10). The closing coil (234) is installed inside the housing (10).

5. The locking device for the dual power supply transfer switch according to claim 2, characterized in that, The closing assembly (20) further includes a first rotating shaft (22), and the bracket (21) is rotatably mounted in the housing (10) via the first rotating shaft (22).

6. The locking device for the dual power supply transfer switch according to claim 4, characterized in that, The micro switch (30) includes a housing (31), a trigger terminal (32), a common terminal, a normally closed terminal, and a normally open terminal; The common terminal is located inside the housing body (31), and the trigger terminal (32), normally closed terminal and normally open terminal are all located on the housing body (31); the trigger terminal (32) cooperates with the common terminal; the normally closed terminal is electrically connected to the closing coil (234); When the rotary lock (41) is in the locked position, the trigger part (422) abuts against the trigger end (32); when the rotary lock (41) is in the locked position, the trigger part (422) releases the trigger end (32); When the trigger terminal (32) is triggered, the common terminal is electrically connected to the normally open terminal; When the trigger terminal (32) is de-triggered, the common terminal is electrically connected to the normally closed terminal.

7. The locking device for the dual power supply transfer switch according to claim 6, characterized in that, The locking part (421) is arranged parallel to the axis of the rotary lock (41), and the triggering part (422) is arranged perpendicular to the axis of the rotary lock (41). When the bracket (21) is in the open position and the rotary lock (41) is in the locked position, the locking part (421) and the locking plate (211) form a cross structure, and the trigger part (422) and the trigger end (32) form a parallel structure; When the bracket (21) is in the closed position and the rotary lock (41) is in the unlocked position, the locking part (421) is arranged parallel to the locking plate (211), and the trigger part (422) is perpendicular to the trigger end (32).

8. The locking device for the dual power supply transfer switch according to claim 1, characterized in that, The locking assembly (40) further includes an unlocking member that is inserted into the rotary lock (41) to rotate the rotary lock (41) back and forth between the locked position and the unlocked position; The upper surface of the housing (10) is provided with a fixing groove, and the rotary lock (41) is embedded in the fixing groove.

9. The locking device for the dual power supply transfer switch according to claim 1, characterized in that, The interlocking component (42) also includes a fixing part (423). The locking part (421), the triggering part (422) and the fixing part (423) are integrally formed. The fixing part (423) is installed at the bottom of the rotary lock (41).

10. The locking device for the dual power supply transfer switch according to claim 1, characterized in that, The housing (10) includes a base plate (11) and a face mask (12) covering the base plate (11).

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