Switchgear with interlocking mechanism

Abstract

This invention relates to a switchgear with an interlocking mechanism, comprising a mounting base and a switchgear door. A circuit breaker mechanism and an isolating grounding mechanism are mounted on the mounting base. The isolating grounding mechanism includes an isolating shaft and a grounding shaft rotatably mounted on the mounting base. The circuit breaker mechanism includes an opening / closing shaft and an interlocking assembly for locking or unlocking the switchgear door. The circuit breaker mechanism also includes a locking plate fixed relative to the opening / closing shaft and a guide slidably mounted on the mounting base. The interlocking assembly includes a locking member slidably mounted on the mounting base. After rotation, the locking plate directly or indirectly abuts against the guide member or the locking member. By integrating the isolating shaft, grounding shaft, and driven shaft onto the same mounting base and setting up a linkage assembly to achieve three-axis linkage, and cooperating with the blocking part on the isolating member, mechanical interlocking between the isolating shaft and the grounding shaft can be achieved.

Description

Technical Field

[0001] This invention belongs to the field of electrical equipment technology, and particularly relates to a switch cabinet with an interlocking mechanism. Background Technology

[0002] As a crucial control and protection device in power systems, the operational safety and reliability of switchgear are of paramount importance. To prevent personal injury accidents or equipment damage caused by misoperation, switchgear typically requires the installation of isolation and interlocking mechanisms to achieve five-fold interlocking between disconnecting switches, grounding switches, circuit breakers, and cabinet doors.

[0003] Currently, traditional switchgear isolation and interlocking structures mostly adopt a split design or a four-axis transmission method. For example, the isolation operating mechanism and the cabinet door interlocking mechanism are usually independent modules, installed in different positions in the switchgear, and linked by complex linkage components. This split layout results in a large number of parts, including four-axis shafts, bushings, multiple linkages, fasteners, etc., which not only leads to high material management costs, but also requires multiple centering adjustments during assembly, which requires high skills from assembly personnel and results in low installation efficiency.

[0004] In addition, existing mechanisms still have shortcomings in terms of the completeness of interlocking functions. The interlocking design between the circuit breaker closing state and the isolation / grounding operation is not rigorous enough, which can easily lead to safety hazards such as accidental operation of the grounding switch when the circuit breaker is not disconnected. At the same time, when the switch cabinet door is open, operators may accidentally operate the circuit breaker to open or close, which further increases the safety risks. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art. This invention provides a switch cabinet with an interlocking mechanism. Through integrated structural design, the assembly process is simplified, the interlocking reliability is improved, and multiple safety interlocks between isolation, grounding, circuit breakers and cabinet doors are realized, solving the problem of complex and insufficiently tight interlocking mechanisms in the prior art.

[0006] The technical solution of the present invention: A switch cabinet with an interlocking mechanism includes a mounting base and a switch cabinet door. A circuit breaker mechanism and an isolation grounding mechanism are provided on the mounting base. The isolation grounding mechanism includes an isolation shaft and a grounding shaft rotatably mounted on the mounting base. The circuit breaker mechanism includes an opening and closing shaft and an interlocking assembly for locking or unlocking the switch cabinet door. The circuit breaker mechanism also includes a locking plate fixed relative to the opening and closing shaft and a guide slidably mounted on the mounting base. The interlocking assembly includes a locking member slidably mounted on the mounting base. After the locking plate rotates, it directly or indirectly abuts against the guide member or the locking member.

[0007] A cam component is fixedly arranged on the grounding shaft. After the grounding shaft rotates, the cam component directly or indirectly abuts against or separates from the locking component.

[0008] The isolation and grounding mechanism also includes a driven shaft. A linkage component is provided between the isolation shaft, the grounding shaft, and the driven shaft. The rotation of the isolation shaft and the grounding shaft drives the driven shaft to rotate through the linkage component. An isolation member is fixedly provided on the driven shaft. The isolation member includes a blocking part. The blocking part abuts against the grounding shaft or the isolation shaft and locks the rotation.

[0009] The circuit breaker mechanism further includes a first elastic member and a second elastic member. The two ends of the first elastic member are respectively fixed relative to the guide and the mounting base, and the two ends of the second elastic member are respectively fixed relative to the locking member and the mounting base.

[0010] The guide slides under the combined action of the locking plate and the first elastic member, while simultaneously pressing against or separating from the isolation shaft and the grounding shaft, thereby locking and releasing the rotation of the isolation shaft and the grounding shaft.

[0011] By adopting the above technical solution, the isolation shaft, grounding shaft, and driven shaft are integrated on the same mounting base, and a linkage component is set to achieve three-axis linkage. With the blocking part on the isolation component, mechanical interlocking between the isolation shaft and the grounding shaft can be achieved. At the same time, by utilizing the double constraint of the locking plate and cam component on the locking component, as well as the direct locking of the isolation shaft and the grounding shaft by the guide component, multiple interlocking between the circuit breaker, the isolation and grounding mechanism, and the cabinet door is achieved. Compared with the traditional split structure, the number of parts is greatly reduced, the assembly is simple, the mechanical linkage is reliable, and the operation is smooth.

[0012] A further feature of the present invention is that the linkage assembly includes a first pin connected to the isolation shaft, a second pin connected to the grounding shaft, and a linkage plate fixedly mounted on the driven shaft. A third pin and a fourth pin are rotatably mounted on the linkage plate. A first connecting rod is hinged between the first pin and the third pin, and a second connecting rod is hinged between the second pin and the fourth pin. Both the first connecting rod and the second connecting rod have slotted holes through which the first pin or the second pin passes and slides.

[0013] The linkage component also includes a telescopic rod, with its two sides respectively fixedly connected to the first pin and the second pin, and a telescopic spring sleeved on the telescopic rod.

[0014] With the above-mentioned further configuration, the linkage component adopts a mating structure of pin, connecting rod and strip hole. The strip hole provides a certain amount of play for the pin, making the transmission process smoother and avoiding jamming. The setting of telescopic rod and telescopic spring allows the linkage component to operate for a certain period of time. After the distance between the two pins on both sides decreases and then increases, the telescopic spring resets. Its elastic reset action will push the corresponding pin to continue to move, so that the rotating isolation shaft and grounding shaft have a gear feel.

[0015] A further provision of the present invention: the mounting base is provided with a first arc-shaped groove and a second arc-shaped groove, the first pin portion is located in the first arc-shaped groove and swings along its trajectory, and the second pin portion is located in the second arc-shaped groove and swings along its trajectory.

[0016] With the above-mentioned further design, the opening of the first and second arc-shaped grooves provides the pin shaft with a swing trajectory, which further improves the transmission accuracy and operation reliability of the linkage component.

[0017] A further embodiment of the present invention includes: the circuit breaker mechanism further includes an opening switch and a closing switch for driving the opening and closing shafts to rotate; the opening switch and the closing switch are respectively provided with transmission components on the mounting base for driving the opening and closing shafts to rotate; the transmission component corresponding to the closing switch includes a latching plate for transmitting the action of the closing switch; a protrusion is integrally or fixedly provided on the driven shaft; an interlocking plate is slidably provided on the mounting base; when the driven shaft rotates, the protrusion squeezes and pushes the interlocking plate to slide; after the interlocking plate slides away from the grounding shaft, the latching plate abuts against the interlocking plate when it is activated.

[0018] With the above-mentioned further configuration, the protrusion on the driven shaft cooperates with the interlocking plate to effectively block the action of the closing plate in the isolated or grounded state, preventing the circuit breaker from being closed accidentally and further improving the safety of the equipment.

[0019] In a further embodiment of the present invention: the gate opening switch drives the locking plate to rotate through its transmission assembly, the transmission assembly including a trip plate for transmitting the action of the gate opening switch, after the locking member slides toward the side closer to the grounding shaft, the trip plate directly or indirectly abuts against the locking member to lock the action when it is activated.

[0020] With the above-mentioned further configuration, when the switch cabinet door is in the open state, the locking element slides towards the side closer to the grounding shaft, and the trip plate is blocked by the locking element when it is activated, thereby preventing the opening switch from being operated erroneously and realizing the protection against misoperation when the door is open.

[0021] A further feature of the present invention is that a third elastic member is provided between the mounting base and the interlocking plate, and the two ends of the third elastic member are respectively fixedly disposed relative to the mounting base and the interlocking plate.

[0022] With the above-mentioned further configuration, a third elastic element is provided between the mounting base and the interlocking plate, so that the interlocking plate can automatically reset after the pressure of the protrusion is lost, simplifying the operation process and improving the ease of use.

[0023] A further feature of the present invention is that the driven shaft, the isolation shaft, and the grounding shaft are arranged in a triangular structure, the locking member is located on the side of the isolation shaft and the grounding shaft near the switch cabinet door, and the blocking part is the protruding part on both sides of the isolation member.

[0024] With the above-mentioned further arrangement, the driven shaft, isolation shaft, and grounding shaft are arranged in a triangular structure, which has a reasonable spatial layout, saves installation space, and the blocking part adopts the protruding parts on both sides of the isolation component. The structure is simple, easy to process, and the locking effect is reliable.

[0025] A further feature of the present invention is that a screw is threaded onto the end of the locking member furthest from the grounding shaft.

[0026] With the above-mentioned further configuration, by assembling the screw, the screw can be used as a locking structure for the switch cabinet door. The extension length of the locking part can be adjusted by rotating the screw, thereby compensating for assembly tolerances and ensuring that the switch cabinet door is reliably pressed or unlocked. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the switch cabinet in a specific embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the circuit breaker mechanism and the isolation grounding mechanism on the mounting base in a specific embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram from another perspective of the circuit breaker mechanism and the isolation grounding mechanism on the mounting base in a specific embodiment of the present invention;

[0030] Figure 4 This is a third-view schematic diagram of the circuit breaker mechanism and the isolation grounding mechanism on the mounting base in a specific embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the bottom of the mounting base in a specific embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the linkage component in a specific embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of the linkage component from another perspective in a specific embodiment of the present invention;

[0034] Figure 8 This is a schematic diagram of the overall structure of the lock component in a specific embodiment of the present invention;

[0035] Figure 9 This is a schematic diagram of the overall structure of the guide in a specific embodiment of the present invention.

[0036] In the diagram: 1. Mounting base; 11. Switch cabinet door;

[0037] 21. Opening / closing shaft; 22. Locking plate; 23. Guide; 24. First elastic element; 25. Second elastic element; 26. Opening switch; 261. Tripping plate; 27. Closing switch; 271. Closing plate;

[0038] 31. Isolating shaft; 311. First pin; 312. First mounting component; 32. Grounding shaft; 321. Second pin; 322. Second mounting component; 33. Driven shaft; 331. Linkage plate; 332. Third pin; 333. Fourth pin; 334. Protrusion; 34. Isolating component; 341. Blocking component; 35. Cam component; 36. First connecting rod; 37. Second connecting rod; 38. Strip hole; 39. Telescopic rod; 391. Telescopic spring;

[0039] 4. Locking component; 41. Screw; 42. Baffle;

[0040] 5. Interlocking plate; 51. Third elastic component. Detailed Implementation

[0041] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] It should be noted that in the description of this invention, all directional indications (such as up, down, forward, backward, etc.) are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0043] Furthermore, in this invention, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. In the description of this invention, "a number" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0045] like Figure 1-9As shown, the present invention provides a switch cabinet with an interlocking mechanism, including a switch cabinet door 11. The upper side of the switch cabinet door 11 has a chamber for mounting a mounting base 1. The mounting base 1 is provided with a circuit breaker mechanism and an isolation grounding mechanism. The isolation grounding mechanism includes an isolation shaft 31, a grounding shaft 32 and a driven shaft 33 rotatably mounted on the mounting base 1. The isolation shaft 31 and the grounding shaft 32 are respectively connected to a disconnect switch and a grounding switch, and serve as the operating gates for their switches. Conduction is achieved by rotating the isolation shaft 31 and the grounding shaft 32. The isolation shaft 31, the grounding shaft 32 and the driven shaft 33 are arranged in a triangular structure, which is compact and saves space.

[0046] A linkage assembly is provided between the isolation shaft 31, the grounding shaft 32, and the driven shaft 33. A first mounting member 312 is fixedly mounted on the isolation shaft 31, and a first pin 311 is rotatably mounted on the first mounting member 312, thereby the first pin 311 is eccentrically mounted to the isolation shaft 31. A second mounting member 322 is fixedly mounted on the grounding shaft 32, and a second pin 321 is rotatably mounted on the second mounting member 322, the second pin 321 is eccentrically mounted to the grounding shaft 32, and the first pin 311 and the second pin 321 are relatively parallel.

[0047] A linkage plate 331 is fixedly mounted on the driven shaft 33. The linkage plate 331 has a triangular structure. A third pin 332 and a fourth pin 333 are rotatably mounted on the linkage plate 331. A first connecting rod 36 is hinged between the first pin 311 and the third pin 332. A second connecting rod 37 is hinged between the second pin 321 and the fourth pin 333. Both the first connecting rod 36 and the second connecting rod 37 have slotted holes 38. The first pin 311 and the second pin 321 pass through the corresponding slotted holes 38 and can slide along the slotted holes 38. The linkage assembly also includes a telescopic rod 39. The two ends of the telescopic rod 39 are fixedly connected to the first pin 311 and the second pin 321 respectively. A telescopic spring 391 is sleeved on the telescopic rod 39. When the first pin 311 or the second pin 321 rotates with the isolation shaft 31 or the grounding shaft 32, the distance between the two ends of the telescopic spring 391 changes, performing compression and reset actions.

[0048] An isolator 34 is fixedly installed on the driven shaft 33. The isolator 34 has protruding blocking parts 341 on both sides. When the isolator shaft 31 or the grounding shaft 32 rotates, the driven shaft 33 is driven to rotate through the linkage component. The blocking parts 341 rotate accordingly and abut against the grounding shaft 32 or the isolator shaft 31, thereby locking the rotation of the abutting shaft and realizing mechanical interlocking.

[0049] In this embodiment, the circuit breaker mechanism includes an opening and closing shaft 21, a locking plate 22 fixed relative to the opening and closing shaft 21, a guide 23 slidably disposed on the mounting base 1, and a locking member 4 slidably disposed on the mounting base 1. The sliding directions of the guide 23 and the locking member 4 are parallel. The circuit breaker mechanism is located below the isolation grounding mechanism. The guide 23 and the locking member 4 both slide along the direction close to or away from the grounding shaft 32.

[0050] Furthermore, a baffle 42 is fixedly provided on one side of the lock 4. When the lock plate 22 rotates back and forth, it can press against the guide 23 and the baffle 42 respectively. The lock 4, the baffle 42, the guide 23 and the lock plate 22 are all made of sheet metal.

[0051] A cam 35 is fixedly installed on the grounding shaft 32. After the grounding shaft 32 rotates, the cam 35 abuts against or separates from the locking member 4. When the grounding shaft 32 is in the open state, the cam 35 abuts against the locking member 4, and when the grounding shaft 32 is in the closed state, the cam 35 separates from the locking member 4.

[0052] The bottom of the locking component 4 is provided with a screw 41. When the locking component 4 slides down, the screw 41 abuts against the outside of the switch cabinet door 11 to lock it. When the locking component 4 slides up towards the grounding shaft 32, the screw 41 retracts upward. At this time, there is no obstruction outside the switch cabinet door 11, and the switch cabinet door 11 can be unlocked and opened.

[0053] In this embodiment, the circuit breaker mechanism further includes a first elastic member 24 and a second elastic member 25. Both the first elastic member 24 and the second elastic member 25 are tension springs. The two ends of the first elastic member 24 are fixedly connected to the guide member 23 and the mounting base 1, respectively. The two ends of the second elastic member 25 are fixedly connected to the lock member 4 and the mounting base 1, respectively. Under the combined action of the lock plate 22 and the first elastic member 24, the guide member 23 can slide along the mounting base 1 and press against or separate from the isolation shaft 31 and the grounding shaft 32, thereby realizing the locking and releasing of the two shafts.

[0054] An interlocking plate 5 is slidably mounted on the mounting base 1, and a protrusion 334 is fixedly mounted on the driven shaft 33. When the driven shaft 33 rotates, the protrusion 334 can squeeze and push the interlocking plate 5 to slide. The closing switch 27 drives the opening and closing shaft 21 to rotate through the transmission assembly, which includes a latching plate 271. When the locking member 4 slides away from the grounding shaft 32, the latching plate 271 abuts against the interlocking plate 5 to prevent the closing operation. Similarly, a third elastic member 51 is provided between the mounting base 1 and the interlocking plate 5. The third elastic member 51 is a tension spring, and its two ends are fixedly connected to the mounting base 1 and the interlocking plate 5 respectively, for the automatic reset of the interlocking plate 5.

[0055] In this embodiment, the gate opening switch 26 drives the locking plate 22 to rotate through the transmission component, which includes a trip plate 261. When the locking member 4 slides towards the side closer to the grounding shaft 32, the trip plate 261 abuts against the locking member 4 to prevent the gate opening operation.

[0056] The working principle of this embodiment is briefly described as follows:

[0057] Circuit breaker closed state: Locking plate 22 rotates to press against guide 23, guide 23 abuts against isolation shaft 31 and grounding shaft 32, locking the rotation of the two shafts. At the same time, cam 35 presses against locking piece 4, locking piece 4 is kept in the locked position, and switch cabinet door 11 cannot be opened. At this time, isolation shaft 31 is in the closed state and grounding shaft 32 is in the open state.

[0058] When the circuit breaker is open and the grounding switch is not closed: Operate the opening switch 26 to rotate the locking plate 22 to reset, and the guide 23 will be reset under the action of the first elastic member 24, thus unlocking the isolation shaft 31 and the grounding shaft 32;

[0059] Grounding switch closed state: Operate the isolating shaft 31 to open the isolating switch. At the same time, the driven shaft 33 rotates, and the protrusion 334 pushes the interlocking plate 5 to slide, so that the interlocking plate 5 is in the stroke of the latching plate 271, preventing the circuit breaker mechanism 2 from closing. Then operate the grounding shaft 32 to close the grounding switch. The cam 35 separates from the locking member 4. Under the action of the second spring member 25, the locking member 4 slides towards the side closer to the grounding shaft 32, unlocking the switch cabinet door 11. At this time, electrical maintenance can be performed inside the cabinet. At the same time, the driven shaft 33 rotates, the isolating member 34 rotates, and the blocking part 341 abuts against the isolating shaft 31, preventing the isolating shaft 31 from rotating to close. Due to the rotation of the driven shaft 33, the protrusion 334 rotates accordingly. The interlocking plate 5 is reset under the action of the third spring member 51 and leaves the stroke path of the latching plate 271.

[0060] Circuit breaker closed and open states: When the closing switch 27 is operated, the locking plate 22 rotates and abuts against the guide 23. The guide 23 slides against the grounding shaft 32 and the isolation shaft 31, locking its rotation. At this time, the locking plates 22 on both sides of the locking member 4 and the cam member 35 are separated from the locking member 4. The locking member 4 slides towards the side closer to the grounding shaft 32 under the action of the second elastic member 25. At this time, the baffle 42 is in the trip plate 261's operating stroke, which can block the trip plate 261's operation and prevent the circuit breaker from being opened by mistake.

[0061] Closed state: After the switch cabinet door 11 is closed, manually pull the screw 41 to drive the locking piece 4 downward, and the baffle 42 disengages from the trip plate 261. At this time, the closing and opening operations return to normal. After operating the grounding shaft 32 to open and the isolating shaft 31 to close, operate the closing switch 27 to close. At this time, the circuit breaker is in the closed state.

Claims

1. A switchgear with an interlocking mechanism, comprising a mounting base (1) and a switchgear door (11), wherein a circuit breaker mechanism and an isolation grounding mechanism are provided on the mounting base (1), the isolation grounding mechanism comprising an isolation shaft (31) and a grounding shaft (32) rotatably mounted on the mounting base (1), the circuit breaker mechanism comprising an opening and closing shaft (21) and an interlocking assembly for locking or unlocking the switchgear door (11), characterized in that: The circuit breaker mechanism also includes a locking plate (22) fixed relative to the opening and closing shaft (21) and a guide (23) slidably disposed on the mounting base (1). The interlocking assembly includes a locking member (4) slidably disposed on the mounting base (1). After the locking plate (22) rotates, it directly or indirectly abuts against the guide member (23) or the locking member (4). A cam (35) is fixedly arranged on the grounding shaft (32). After the grounding shaft (32) rotates, the cam (35) directly or indirectly abuts against or separates from the lock (4). The lock plate (22) and the cam (35) together constrain the sliding of the lock (4). The isolation grounding mechanism also includes a driven shaft (33). A linkage component is provided between the isolation shaft (31), the grounding shaft (32), and the driven shaft (33). The rotation of the isolation shaft (31) and the grounding shaft (32) drives the driven shaft (33) to rotate through the linkage component. An isolation member (34) is fixedly provided on the driven shaft (33). The isolation member (34) includes a blocking part (341). The blocking part (341) abuts against the grounding shaft (32) or the isolation shaft (31) and locks the rotation. The linkage assembly includes a first pin (311) that is drivenly connected to the isolation shaft (31), a second pin (321) that is drivenly connected to the grounding shaft (32), and a linkage plate (331) fixedly mounted on the driven shaft (33). A third pin (332) and a fourth pin (333) are rotatably mounted on the linkage plate (331). A first connecting rod (36) is hinged between the first pin (311) and the third pin (332), and a second connecting rod (37) is hinged between the second pin (321) and the fourth pin (333). Both the first connecting rod (36) and the second connecting rod (37) are provided with strip holes (38) through which the first pin (311) or the second pin (321) passes and slides. The linkage assembly also includes a telescopic rod (39), which is fixedly connected to the first pin (311) and the second pin (321) on both sides, and a telescopic spring (391) is sleeved on the telescopic rod (39). The circuit breaker mechanism further includes a first elastic element (24) and a second elastic element (25). The two ends of the first elastic element (24) are respectively fixed relative to the guide (23) and the mounting base (1), and the two ends of the second elastic element (25) are respectively fixed relative to the lock (4) and the mounting base (1). The guide (23) slides under the combined action of the locking plate (22) and the first elastic member (24), and at the same time presses against or separates from the isolation shaft (31) and the grounding shaft (32), thereby locking and releasing the rotation of the isolation shaft (31) and the grounding shaft (32).

2. A switchgear with an interlocking mechanism according to claim 1, characterized in that: The mounting base (1) has a first arc-shaped groove and a second arc-shaped groove. The first pin (311) is located in the first arc-shaped groove and swings along its trajectory. The second pin (321) is located in the second arc-shaped groove and swings along its trajectory.

3. A switch cabinet with an interlocking mechanism according to claim 1, characterized in that: The circuit breaker mechanism also includes an opening switch (26) and a closing switch (27) for driving the opening and closing shaft (21) to rotate. The opening switch (26) and the closing switch (27) are respectively provided with a transmission component for driving the opening and closing shaft (21) to rotate on the mounting base (1). The transmission component corresponding to the closing switch (27) includes a latching plate (271) for transmitting the action of the closing switch (27). The driven shaft (33) is integrally or fixedly provided with a protrusion (334). The mounting base (1) is slidably provided with an interlocking plate (5). When the driven shaft (33) rotates, the protrusion (334) squeezes and pushes the interlocking plate (5) to slide. After the interlocking plate (5) slides away from the grounding shaft (32), the latching plate (271) abuts against the interlocking plate (5) when it is in action.

4. A switch cabinet with an interlocking mechanism according to claim 3, characterized in that: The gate opening switch (26) drives the locking plate (22) to rotate through its transmission assembly. The transmission assembly includes a trip plate (261) for transmitting the action of the gate opening switch (26). After the locking member (4) slides towards the side closer to the grounding shaft (32), the trip plate (261) directly or indirectly abuts against the locking member (4) to lock the action when it is activated.

5. A switch cabinet with an interlocking mechanism according to claim 1, characterized in that: A third elastic member (51) is provided between the mounting base (1) and the interlocking plate (5), and the two ends of the third elastic member (51) are respectively fixed relative to the mounting base (1) and the interlocking plate (5).

6. A switch cabinet with an interlocking mechanism according to claim 1, characterized in that: The driven shaft (33), the isolation shaft (31) and the grounding shaft (32) are arranged in a triangular structure. The locking member (4) is located on the side of the isolation shaft (31) and the grounding shaft (32) close to the switch cabinet door (11). The blocking part (341) is the protruding part on both sides of the isolation member (34).

7. A switch cabinet with an interlocking mechanism according to claim 1, characterized in that: The locking element (4) has a screw (41) threaded onto one end away from the grounding shaft (32).

8. A switch cabinet with an interlocking mechanism according to claim 1, characterized in that: A first mounting component (312) is fixedly mounted on the isolation shaft (31), and a first pin (311) is rotatably mounted on the first mounting component (312). The first pin (311) is eccentrically mounted to the isolation shaft (31). A second mounting component (322) is fixedly mounted on the grounding shaft (32), and a second pin (321) is rotatably mounted on the second mounting component. The second pin (321) is eccentrically mounted to the grounding shaft (32). The first pin (311) and the second pin (321) are relatively parallel.

9. A switch cabinet with an interlocking mechanism according to claim 1, characterized in that: A baffle (42) is fixed or integrally provided on the lock (4). After the lock plate (22) rotates, it directly or indirectly presses against the guide (23) or the baffle (42).

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