Interlocking mechanism for cabinet door of switch cabinet, switch cabinet and switch cabinet group cabinet

Abstract

The utility model relates to an interlocking mechanism for a cabinet door of a switch cabinet, the switch cabinet and a switch cabinet group cabinet. The interlocking mechanism comprises a connecting plate which is fixed on a lock cylinder and can rotate along with the lock cylinder; the connecting plate rotates to drive the sliding piece to move between the blocking position and the avoiding position, and when the lock cylinder is located at the unlocking position, the sliding piece is located at the blocking position, and when the lock cylinder is located at the locking position, the sliding piece is located at the avoiding position. When the sliding part is located at the avoiding position, the first spring bolt plate can rotate, when the cabinet door is closed in place, the first spring bolt plate can extend into a groove of the cabinet door of the switch cabinet, and when the sliding part is located at the blocking position, the sliding part prevents the first spring bolt plate from exiting from the groove; the second spring bolt plate is located on the moving path of the cabinet door and can be pushed by the cabinet door to leave the moving path of the cabinet door.

Description

Technical Field

[0001] The utility model relates to the field of switch cabinets, in particular to an interlocking mechanism for a cabinet door of a switch cabinet, a switch cabinet and a switch cabinet assembly. Background Art

[0002] The main function of switchgear is to open and close, control and protect electrical equipment during the process of power generation, transmission, distribution and energy conversion in the power system.

[0003] To ensure the safety of personnel, the switch cabinet door must be fully closed when the switch cabinet is energized. Otherwise, other operations cannot be performed. How to ensure that the switch cabinet door is fully closed is a technical problem that needs to be solved urgently. Utility Model Content

[0004] In view of this, the present invention proposes an interlocking mechanism for a door of a switch cabinet, the switch cabinet comprising:

[0005] A key lock, comprising a lock body and a key, wherein the lock body comprises a housing and a lock core, wherein the lock core is rotatably disposed in the housing, wherein the key can be inserted into the lock core and drive the lock core to rotate between an unlocked position and a locked position, wherein when the lock core is in the unlocked position, the key can be pulled out of the lock core, and when the lock core leaves the unlocked position, the lock core prevents the key from being pulled out of the lock core;

[0006] The interlocking mechanism comprises:

[0007] a connecting plate, which is fixed to the lock core and can rotate with the lock core;

[0008] A sliding member, wherein the rotation of the connecting plate can drive the sliding member to move between a blocking position and an avoidance position, wherein when the lock core is in the unlocking position, the sliding member is in the blocking position, and when the lock core is in the locking position, the sliding member is in the avoidance position;

[0009] a first locking tongue plate, wherein when the sliding member is in the avoidance position, the first locking tongue plate can rotate, and when the cabinet door is fully closed, the first locking tongue plate can extend into a groove of the cabinet door of the switch cabinet; when the sliding member is in the blocking position, the sliding member prevents the first locking tongue plate from exiting the groove;

[0010] A second lock tongue plate is located on the moving path of the cabinet door. The second lock tongue plate can be pushed by the cabinet door to leave the moving path of the cabinet door. When the second lock tongue plate leaves the moving path of the cabinet door, the sliding member can move to the blocking position. When the second lock tongue plate does not leave the moving path of the cabinet door, the second lock tongue plate can prevent the sliding member from moving to the blocking position.

[0011] According to the interlocking mechanism for the cabinet door of the switch cabinet, through the mutual cooperation of the sliding member, the first lock tongue plate and the second lock tongue plate, the key can be pulled out from the lock core only when the cabinet door is fully closed, thereby ensuring the correct closure of the cabinet door and realizing the interlocking of the key with other components.

[0012] According to the interlocking mechanism as described above, optionally, the connecting plate includes:

[0013] a first body fixed to the lock core;

[0014] The first protrusion is fixed to the first body and is formed integrally with the first body. The first protrusion can drive the sliding member to slide.

[0015] Such a connecting plate has a simple structure and is easy to implement.

[0016] According to the interlocking mechanism described above, optionally, the sliding member includes:

[0017] a contact portion for contacting the connecting plate;

[0018] an accommodating portion connected to the contact portion and having a gap, wherein the first locking tongue plate can extend into the gap when the first locking tongue plate exits the groove;

[0019] a flat plate portion, wherein the receiving portion is located at one end of the flat plate portion;

[0020] The second protrusion is located at the other end of the flat plate portion, and the second protrusion is perpendicular to the flat plate portion.

[0021] The arrangement of such a sliding member has a simple structure and low cost.

[0022] According to the interlocking mechanism described above, optionally, the switch cabinet includes a frame plate, and the interlocking mechanism further includes: at least one limit assembly, each of which includes a fixed plate and a fixed member, the flat plate portion is located between the fixed plate and the frame plate, and the fixed member extends through the fixed plate toward the flat plate portion. The limit assembly is used to limit the sliding direction of the sliding member.

[0023] According to the interlocking mechanism described above, optionally, the first locking tongue plate includes:

[0024] a second body having a protruding portion, wherein the sliding member can block the rotation of the first bolt plate by contacting the protruding portion, and when the sliding member is in an avoidance position, the sliding member can avoid the protruding portion;

[0025] a handle fixed to the second body;

[0026] The first lock tongue portion is fixed on the second body. The first lock tongue portion can extend into a groove of the cabinet door of the switch cabinet. The handle can drive the first lock tongue portion to rotate and make the first lock tongue portion exit the groove.

[0027] Such a first locking tongue plate has a simple structure and is easy to implement.

[0028] According to the interlocking mechanism described above, optionally, the second locking bolt plate includes:

[0029] a third body having a notch, wherein the third body can be rotated so that the notch avoids the sliding member, so that the sliding member can move to the blocking position;

[0030] A second locking tongue portion is fixed to the third body, the locking tongue portion has a wedge-shaped surface, and the second locking tongue portion is located on the moving path of the cabinet door.

[0031] Such a second locking tongue plate has a simple structure and is easy to implement.

[0032] According to the interlocking mechanism described above, optionally, the key is the key of the upper switch cabinet, and when the three-position switch of the upper switch cabinet is grounded and closed, the key can be taken out from the upper switch cabinet; or,

[0033] The interlocking mechanism further comprises:

[0034] A key exchange box is used to place the key and another key. The other key is used for the three-position switch of the upper switch cabinet. When the three-position switch of the upper switch cabinet is grounded and closed, the other key can be taken out from the upper switch cabinet. When the other key is placed in the key exchange box, the key can be taken out from the key exchange box.

[0035] This can prevent workers from touching live parts after the cabinet door is opened.

[0036] The utility model also provides a switch cabinet, comprising the interlocking mechanism for the cabinet door of the switch cabinet as described in any one of the above items.

[0037] The present invention further provides a switch cabinet assembly, comprising a switch cabinet of this level, wherein the switch cabinet of this level is the switch cabinet as described above, and further comprising an upper-level switch cabinet, wherein the upper-level switch cabinet is interlocked with the switch cabinet of this level through the key. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that those skilled in the art will have a clearer understanding of the above and other features and advantages of the present invention. In the accompanying drawings:

[0039] Figure 1 This is a structural schematic diagram of an interlocking mechanism according to the present invention when the cabinet door is in an open state, viewed from one angle.

[0040] Figure 2 This is a structural schematic diagram from another angle of the interlocking mechanism according to the present invention when the cabinet door is in the open state.

[0041] Figure 3 This is a structural schematic diagram of the interlocking mechanism according to the utility model when the cabinet door is in the open state from another angle.

[0042] Figure 4 It is a structural schematic diagram of an interlocking mechanism according to the present invention when the cabinet door is in a closed state at one angle.

[0043] Figure 5 This is a structural schematic diagram from another angle of the interlocking mechanism of the cabinet door according to the present invention when it is in a closed state.

[0044] Figure 6 This is a structural schematic diagram of the interlocking mechanism according to the utility model when the cabinet door is in a closed state from another angle.

[0045] The accompanying drawings are numerals as follows:

[0046] 1-Cabinet door

[0047] 2-Lock body

[0048] 21- Shell

[0049] 22-Lock Cylinder

[0050] 31-Connecting plate

[0051] 311-First body

[0052] 312-first protrusion

[0053] 32-Slider

[0054] 321-Contact Department

[0055] 322-Accommodation

[0056] 323- Flat Panel Department

[0057] 324-Second protrusion

[0058] 33-First latch plate

[0059] 331-Second Body

[0060] 3311-Extension

[0061] 332-Handle

[0062] 333-First lock tongue

[0063] 34-Second lock plate

[0064] 341-Third Body

[0065] 3411-Gap

[0066] 3412-Groove

[0067] 342-Second lock tongue

[0068] 41-Fixed plate

[0069] 42-Fixer

[0070] 5-Support

[0071] 6-Frame board

[0072] D1-first direction

[0073] D2-Second Direction

[0074] D3-Third direction DETAILED DESCRIPTION

[0075] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail with reference to the following embodiments. Nouns and pronouns related to people in this patent application are not limited to specific genders.

[0076] In order to ensure that the switch cabinet door 1 is properly closed, a key lock can be provided for the switch cabinet door 1. The key lock comprises a lock body 2 and a key (not shown in the figure), wherein the lock body 2 comprises a housing 21 and a lock cylinder 22. The lock cylinder 22 is rotatably arranged in the housing 21. The key can be inserted into the lock cylinder 22 and drive the lock cylinder 22 to rotate between an unlocked position and a locked position. When the lock cylinder 22 is in the unlocked position, the key can be pulled out of the lock cylinder 22. Figures 1 to 3 The lock cylinder 22 is shown in the unlocked position; when the lock cylinder 22 leaves the unlocked position, the lock cylinder 22 prevents the key from being pulled out of the lock cylinder 22. Figures 4 to 6The lock cylinder 22 is shown in the locked position. This allows the key to be removed from the lock cylinder 22 to determine whether the cabinet door 1 is fully closed. Furthermore, the key lock can be interlocked with other switchgear. For example, the key can only be accessed and operated when certain components of the other switchgear are closed or opened. The cabinet door 1 here can be the door 1 of the cable room. The other switchgear can be, for example, a higher-level switchgear. More specifically, the key can only be accessed when the three-position ground switch of the higher-level switchgear is fully grounded and closed.

[0077] It should be noted that the cabinet door 1 here is closed by being hung, that is, the cabinet door 1 can be closed by moving along the first direction D1, and can be opened by moving along the opposite direction of the first direction D1.

[0078] Accordingly, an interlocking mechanism needs to be provided between the key lock and the cabinet door 1 .

[0079] like Figures 1 to 6 As shown, the interlocking mechanism of the cabinet door 1 of the switch cabinet according to the present invention includes a connecting plate 31, a sliding member 32, a first locking plate 33 and a second locking plate. Of course, the interlocking mechanism can also include the aforementioned key lock.

[0080] The connecting plate 31 is fixed to the lock core 22 and can rotate along with the lock core 22. As an example, Figure 2 、 Figure 4 and Figure 5 As shown, the connecting plate 31 has a first body 311 and a first protrusion 312. The first body 311 is fixed to the lock core 22. The first protrusion 312 is fixed to the first body 311 and is integrally formed with the first body 311. The rotation of the lock core 22 can drive the first body 311 to rotate, thereby enabling the first protrusion 312 to drive the sliding member 32 to move. Figure 2 and Figure 5 As shown, after the lock core 22 drives the connecting plate 31 to rotate a certain angle, the first protrusion 312 contacts the moving member, and then moves the moving member. Such a connecting plate 31 has a simple structure and is easy to implement.

[0081] The rotation of the connecting plate 31 can drive the sliding member 32 to move between the blocking position and the avoidance position. When the lock core 22 is in the unlocking position, the sliding member 32 is in the blocking position. When the lock core 22 is in the locking position, the sliding member 32 is in the avoidance position. Figures 1 to 3 As shown, it is a structural diagram of the lock core 22 in the locked position, at which time the sliding member 32 is in the avoidance position and the cabinet door 1 is in the open state. Figures 4 to 6FIG. 2 is a structural diagram of the lock core 22 in the unlocking position, at which time the sliding member 32 is in the blocking position and the cabinet door 1 is in the closed state. The sliding member 32 specifically moves along the second direction D2 and the opposite direction of the second direction D2.

[0082] When the sliding member 32 is in the avoidance position, the first latch plate 33 can rotate, and when the cabinet door 1 is closed in place, the first latch plate 33 can extend into the groove (not shown) of the cabinet door 1 of the switch cabinet. When the sliding member 32 is in the blocking position, the sliding member 32 blocks the first latch plate 33 from exiting the groove. The first latch plate 33 is used to lock the cabinet door 1. When the first latch plate 33 extends into the groove of the cabinet door 1, the cabinet door 1 cannot move and can only be in a closed state. Only when the first latch plate 33 exits the groove can the cabinet door 1 be opened, that is, the cabinet door 1 can move in the first direction D1 and the opposite direction of the first direction D1 to achieve opening or closing. Whether the first latch plate 33 can exit the groove is determined by the sliding member 32.

[0083] The second latch plate 34 is located on the moving path of the cabinet door 1 and can be pushed by the cabinet door 1 to leave the moving path of the cabinet door 1. When the second latch plate 34 leaves the moving path of the cabinet door 1, the sliding member 32 can move to the blocking position. Figure 4 and Figure 5 As shown, if the second deadbolt plate 34 does not leave the movement path of the cabinet door 1, the second deadbolt plate 34 can prevent the slider 32 from moving to the blocking position. The second deadbolt plate 34 is used to determine whether the slider 32 can reach the blocking position. When the cabinet door 1 is closed, the second deadbolt plate 34 can allow the slider 32 to move to the blocking position. At this time, the lock cylinder 22 is in the unlocked position and the key can be removed. When the cabinet door 1 is open, due to the presence of the second deadbolt plate 34, the slider 32 cannot move to the blocking position. Therefore, the lock cylinder 22 cannot move to the unlocked position and the key cannot be removed.

[0084] The cabinet door 1 here may be the cabinet door 1 of a cable room.

[0085] According to the interlocking mechanism of the cabinet door 1 for the switch cabinet of the utility model, through the mutual cooperation of the sliding member 32, the first lock tongue plate 33, and the second lock tongue plate, the key can be pulled out from the lock core 22 only when the cabinet door 1 is fully closed, thereby ensuring the correct closing of the cabinet door 1 and realizing the interlocking of the key with other components.

[0086] As an example, Figure 1 、 Figure 2 and Figure 4 、 Figure 5As shown, the sliding member 32 includes a contact portion 321, a receiving portion 322, a flat portion 323, and a second protrusion 324. These components can be integrally formed. The contact portion 321 is used to contact the connecting plate 31, specifically the first protrusion 312. The receiving portion 322 is connected to the contact portion 321 and has a gap, allowing the first locking plate 33 to extend into the gap when it exits the groove. The receiving portion 322 is located at one end of the flat portion 323, which extends along the second direction D2. The second protrusion 324 is located at the other end of the flat portion 323. At least a portion of the second protrusion 324 is perpendicular to the flat portion 323, allowing it to be blocked by the second locking plate 34. The figure shows that the portion where the second protrusion 324 connects to the flat portion 323 is perpendicular to each other, and the second protrusion 324 has a bend, which facilitates the second protrusion 324 to enter the notch 3411. This configuration of the sliding member 32 has a simple structure and low cost.

[0087] Optionally, the switch cabinet includes a frame plate 6, and the interlocking mechanism further includes at least one limiting assembly, each limiting assembly including a fixing plate 41 and a fixing member 42. The flat plate portion 323 is located between the fixing plate 41 and the frame plate 6, and the fixing member 42 extends through the fixing plate 41 toward the flat plate portion 323. The frame plate 6 is an original plate of the switch cabinet, for example, a part of the partition between the cable chamber and the circuit breaker chamber above. The limiting assembly is used to limit the sliding direction of the sliding member 32, such as Figures 1 to 6 As shown, the fixing plate 41 is a bent plate, one end of which can be fixed to the frame plate 6, with a portion thereof parallel to the frame plate 6, thus forming a space between the fixing plate 41 and the frame plate 6. The fixing member 42 extends through the fixing plate 41 toward the flat plate portion 323. The fixing member 42 can further reduce the wiggle space of the flat plate portion 323 in the first direction D1, thereby preventing the sliding member 32 from swinging too much during the sliding process and ensuring smooth sliding. As an example, the fixing member 42 can be curved at the top toward the flat plate portion 323 to prevent scratches on the flat plate portion 323 and affect the smooth movement of the sliding member 32.

[0088] Optionally, the first locking tongue plate 33 includes a second body 331, a handle 332, and a first locking tongue portion 333. The second body 331 has a protruding portion 3311, and the slider 32 can block the rotation of the first locking tongue plate 33 by contacting the protruding portion 3311. When the slider 32 is in the avoidance position, the slider can avoid the protruding portion 3311. The handle 332 is fixed to the second body 331. The first locking tongue portion 333 is fixed to the second body 331 and can extend into a groove of the cabinet door 1 of the switch cabinet. The handle 332 can drive the first locking tongue portion 333 to rotate and withdraw the first locking tongue portion 333 from the groove. Figure 1 and Figure 2 The contact portion 321 is shown to be able to avoid the extension portion 3311. More specifically, Figure 1 and Figure 2 At the position shown, by pressing the handle 332 , the first locking tongue portion 333 can be rotated, and the protruding portion 3311 can enter the gap of the accommodating portion 322 . Figure 4 and Figure 5 The figure shows the sliding member 32 corresponding to the extension 3311. Due to the presence of the contact portion 321, the extension 3311 blocks the rotation of the first locking tongue plate 33. Here, the handle 332 and the first locking tongue portion 333 both extend along the third direction D3. As can be seen from the figure, the handle 332 is not in the movement path of the cabinet door 1, while the first locking tongue portion 333 is in the movement path of the cabinet door 1. When the first locking tongue portion 333 extends into the groove of the cabinet door 1, the cabinet door 1 cannot move in the direction of opening. This first locking tongue plate 33 has a simple structure and is easy to implement.

[0089] The second locking tongue plate 34 includes a third body 341 and a second locking tongue portion 342. The third body 341 has a notch 3411, and the third body 341 can rotate so that the notch 3411 avoids the sliding member 32, so that the sliding member 32 can move to the blocking position; the second locking tongue portion 342 is fixed to the third body 341, and the second locking tongue portion 342 has a wedge-shaped surface. The second locking tongue portion 342 is located on the moving path of the cabinet door 1. More specifically, the second locking tongue portion has a wedge-shaped surface facing the side opposite to the first direction D1. Figure 4 and Figure 5 As shown, when the sliding member 32 is in the blocking position, the sliding member 32 is located in the notch 3411, specifically, the second protrusion 324 is located in the notch 3411. The second lock tongue portion 342 extends along the third direction D3. During the installation of the cabinet door 1, it will first contact the wedge surface, and push the second lock tongue portion 342 out of the moving path of the cabinet door 1 through the wedge surface. When the cabinet door 1 is closed, the second lock tongue portion 342 will always be pushed. In this process, since the second lock tongue portion 342 is pushed by the cabinet door 1, it rotates, and then drives the third body 341 to rotate, so that the second protrusion 324 can smoothly enter the notch 3411 of the third body 341 during the movement, and the sliding member 32 can move to the blocking position. As shown Figure 1 、 Figure 2 as well as Figure 4 and Figure 5 As shown, the third body 341 has a groove 3412. The groove 3412 cooperates with the support member 5 to enable the third body 341 to rotate. The support member 5 can be part of the switch cabinet frame or part of the second locking plate 34, without limitation. This second locking plate 34 has a simple structure and is easy to implement.

[0090] Optionally, the aforementioned switchgear is a switchgear of the same level, and the aforementioned key can be used to operate the switchgear of the same level as well as the switchgear of a higher level. The switchgear of the same level is, for example, an incoming line switchgear, and the higher level switchgear has a three-position switch. The key can be used to operate the three-position switch of the higher level switchgear. For example, the key can only be operated when the key is inserted into the key lock of the higher level switchgear. Moreover, the key can only be removed from the higher level switchgear and inserted into the switchgear of the same level to perform related operations when the three-position switch is grounded and closed.

[0091] Of course, the interlocking mechanism may also include a key exchange box (not shown in the figure). The key exchange box is used to accommodate two keys, one of which is the aforementioned key, and the other is the key for the upper-level switch cabinet. Due to the function of the key exchange box, only when one of the keys is placed in the key exchange box can the other key be taken out of the key exchange box. In this way, if the other key of the upper-level switch cabinet is set to be able to be pulled out from the upper-level switch cabinet only when the three-position switch is grounded and closed, the following interlocking can be achieved: the cabinet door 1 of the switch cabinet at this level can only be opened when the three-position switch of the upper-level switch cabinet is grounded and closed. This can prevent staff from touching live parts after the cabinet door 1 is opened. If the cabinet door 1 is the cabinet door 1 of the cable room, it can prevent staff from touching live cables.

[0092] The following describes the operation of the interlocking mechanism for the switchgear door 1 described above using a specific example. In this example, the upper-level switchgear and the switchgear at the current level share a common key. When the three-position switch of the upper-level switchgear is in the grounded closed position, the key can be removed from the upper-level switchgear and used to operate the switchgear at the current level.

[0093] like Figures 1 to 3 As shown in FIG, it is a structural diagram of the switch cabinet door 1 in an open state, and the switch cabinet door 1 is not hung up at this time. Figures 4 to 6 , which is a structural diagram of a switch cabinet door 1 in a closed state, wherein the switch cabinet door 1 has been hung.

[0094] When the three-position switch of the upper switch cabinet is grounded and closed, the staff can get the key to Figures 1 to 6 When the three-position switch is grounded and closed, the door 1 of the switch cabinet can be opened to perform corresponding maintenance operations.

[0095] like Figures 4 to 6As shown, when the cabinet door 1 of the switch cabinet is in the closed state and the lock cylinder 22 is in the unlocked state, the sliding member 32 is in the blocking position, and the first lock bolt plate 33 cannot rotate. Therefore, the first lock bolt portion 333 of the first lock bolt plate 33 is located in the groove of the cabinet door 1, and the cabinet door 1 cannot be opened. In addition, the second lock bolt portion 342 is blocked by the cabinet door 1 and is out of the movement path of the cabinet door 1. The second protrusion 324 of the sliding plate is located in the notch of the second lock bolt plate 34.

[0096] A staff member inserts the key into the lock cylinder 22 and rotates it clockwise until it locks, preventing the key from being removed from the lock cylinder 22. As the lock cylinder 22 rotates from the unlocked to the locked state, the lock cylinder 22 drives the connecting plate 31 to rotate clockwise, which in turn drives the slider 32 to move in the direction opposite to the second direction D2 until it reaches the escape position. At this point, the staff member can press the handle 332 to cause the first locking bolt 333 to exit the groove of the cabinet door 1, allowing the cabinet door 1 to move in the direction opposite to the first direction D1 and open. During this process, the second locking bolt 342 of the second locking bolt plate 34 gradually loses the thrust from the cabinet door 1, rotating and returning to a position within the movement path of the cabinet door 1. At this point, the third body 431 of the second locking bolt plate 34 blocks the slider 32 from moving in the second direction D2. In other words, when the cabinet door 1 is not closed, the lock cylinder 22 remains locked or cannot reach the unlocked position, preventing the staff member from rotating the lock cylinder 22 and, consequently, removing the key from the lock cylinder 22. In this way, the staff cannot use the key to operate the three-position switch of the upper switch cabinet.

[0097] After the inspection is completed, the staff installs the cabinet door 1 along the first direction D1, so that the cabinet door 1 changes from the open state to the closed state. During this process, the staff holds the handle 332 and rotates it, so that the first lock tongue portion 333 avoids the moving path. The cabinet door 1 contacts the wedge-shaped surface of the second lock tongue portion 342, and as the cabinet door 1 moves, the second lock tongue portion 342 is pushed to leave the moving path of the cabinet door 1, and the second lock tongue portion 342 is always pushed by the cabinet door 1, for example, it is kept in the position as shown in FIG. Figure 5 The position shown. With the cabinet door 1 in place, the staff releases the handle 332, allowing the first lock tongue to extend into the groove of the cabinet door 1. The staff then rotates the lock cylinder 22, moving it from the avoidance position to the blocking position. At this point, the handle 332 cannot be rotated, preventing the first lock tongue 333 from exiting the groove, and the cabinet door 1 cannot be opened. The staff can then remove the key from the lock cylinder 22 and use it to operate the three-position switch of the upper switch cabinet.

[0098] The present invention also includes a switch cabinet, which includes any of the above-mentioned interlocking mechanisms for the cabinet door 1 of the switch cabinet.

[0099] The utility model also includes a switch cabinet group, which includes the aforementioned switch cabinet of this level and an upper-level switch cabinet. The upper-level switch cabinet is interlocked with the switch cabinet of this level through a key.

[0100] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An interlocking mechanism for a door (1) of a switch cabinet, the switch cabinet comprising: A key lock comprises a lock body (2) and a key, wherein the lock body (2) comprises a housing (21) and a lock core (22), wherein the lock core (22) is rotatably arranged in the housing (21), wherein the key can be inserted into the lock core (22) and drive the lock core (22) to rotate between an unlocked position and a locked position, wherein when the lock core (22) is in the unlocked position, the key can be pulled out of the lock core (22), and when the lock core (22) leaves the unlocked position, the lock core (22) prevents the key from being pulled out of the lock core (22); It is characterized in that the interlocking mechanism includes: a connecting plate (31) fixed to the lock core (22) and capable of rotating along with the lock core (22); A sliding member (32), wherein the rotation of the connecting plate (31) can drive the sliding member (32) to move between a blocking position and an avoidance position; when the lock core (22) is in the unlocking position, the sliding member (32) is in the blocking position; and when the lock core (22) is in the locking position, the sliding member (32) is in the avoidance position; A first locking tongue plate (33), wherein when the sliding member (32) is located in the avoidance position, the first locking tongue plate (33) can rotate, and when the cabinet door (1) is closed in place, the first locking tongue plate (33) can extend into a groove of the cabinet door (1) of the switch cabinet, and when the sliding member (32) is located in the blocking position, the sliding member (32) blocks the first locking tongue plate (33) from exiting the groove; A second lock tongue plate (34) is located on the moving path of the cabinet door (1). The second lock tongue plate (34) can be pushed by the cabinet door (1) to leave the moving path of the cabinet door (1). When the second lock tongue plate (34) leaves the moving path of the cabinet door (1), the sliding member (32) can move to a blocking position. When the second lock tongue plate (34) does not leave the moving path of the cabinet door (1), the second lock tongue plate (34) can block the sliding member (32) from moving to the blocking position.

2. The interlocking mechanism according to claim 1, wherein: The connecting plate (31) comprises: A first body (311) fixed to the lock core (22); The first protrusion (312) is fixed to the first body (311) and is formed integrally with the first body (311). The first protrusion (312) can drive the sliding member (32) to slide.

3. The interlocking mechanism according to claim 1, wherein: The sliding member (32) comprises: a contact portion (321) for contacting the connecting plate (31); an accommodating portion (322) connected to the contact portion (321) and having a gap, wherein the first locking tongue plate (33) can extend into the gap when the first locking tongue plate (33) exits the groove; a flat plate portion (323), wherein the receiving portion (322) is located at one end of the flat plate portion (323); The second protrusion (324) is located at the other end of the flat plate portion (323), and at least a portion of the second protrusion (324) is perpendicular to the flat plate portion (323).

4. The interlocking mechanism according to claim 3, characterized in that: The switch cabinet includes a frame plate (6), and the interlocking mechanism further includes: At least one limiting assembly, each limiting assembly comprising a fixing plate (41) and a fixing member (42), the flat plate portion (323) being located between the fixing plate (41) and the frame plate (6), and the fixing member (42) extending through the fixing plate (41) toward the flat plate portion (323).

5. The interlocking mechanism according to claim 1, wherein: The first locking tongue plate (33) comprises: A second body (331) having a protruding portion (3311), wherein the sliding member (32) can block the first locking tongue plate (33) from rotating by contacting the protruding portion (3311); and when the sliding member (32) is located at an avoidance position, the sliding member (32) can avoid the protruding portion (3311); a handle (332) fixed to the second body (331); A first locking tongue portion (333) is fixed to the second body (331); the first locking tongue portion (333) can extend into a groove of the cabinet door (1) of the switch cabinet; and the handle (332) can drive the first locking tongue portion (333) to rotate and make the first locking tongue portion (333) exit the groove.

6. The interlocking mechanism according to claim 1, characterized in that: The second locking tongue plate (34) comprises: A third body (341) having a notch, wherein the third body (341) can be rotated so that the notch avoids the sliding member (32), so that the sliding member (32) can move to a blocking position; A second locking tongue portion (342) is fixed to the third body (341), the locking tongue portion having a wedge-shaped surface, and the second locking tongue portion (342) is located on the moving path of the cabinet door (1).

7. The interlocking mechanism according to any one of claims 1 to 6, characterized in that: The key is the key of the upper switch cabinet, and when the three-position switch of the upper switch cabinet is grounded and closed, the key can be taken out of the upper switch cabinet; or, The interlocking mechanism further comprises: A key exchange box is used to place the key and another key. The other key is used for the three-position switch of the upper switch cabinet. When the three-position switch of the upper switch cabinet is grounded and closed, the other key can be taken out from the upper switch cabinet. When the other key is placed in the key exchange box, the key can be taken out from the key exchange box.

8. Switchgear, characterized in that, An interlocking mechanism for a cabinet door (1) of a switch cabinet comprising any one of claims 1-7.

9. The switch cabinet group is characterized by: The present-level switch cabinet comprises a switch cabinet, wherein the switch cabinet is the switch cabinet according to claim 8, and further comprises an upper-level switch cabinet, wherein the upper-level switch cabinet is interlocked with the switch cabinet of the present level through the key.

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