A mechanical interlocking device for upper isolation and upper grounding switch cabinet

Abstract

The present invention relates to the technical field of protection devices, and specifically discloses a mechanical interlocking device for an upper isolation and upper grounding switch cabinet, comprising: a disk fixedly connected to a switch shaft; a baffle bracket A fixedly connected to a circuit breaker; a baffle A slidably connected to the baffle bracket A; an interlocking rod A arranged between the baffle A and the disk; a top plate bracket A fixedly connected to the circuit breaker; and a top plate A slidably connected to the top plate bracket A. The present invention transmits through the disk and the interlocking rod A, converts the torque of the disk during rotation into the power for the baffle A to move up and down, and applies the force on the baffle A to the baffle bracket A, thereby preventing the baffle A and the interlocking rod A from bending and deforming to cause interlocking jamming, thereby improving the interlocking reliability of the present invention; the present invention converts the three-dimensional space force into the plane force by converting the spatial distance between the interlocking rod A and the disk, thereby reducing energy loss and improving the transmission accuracy and efficiency of the present invention.

Description

Technical Field

[0001] The invention relates to the technical field of protection devices, and in particular discloses a mechanical interlocking device for an upper isolation and upper grounding switch cabinet. Background Art

[0002] In high-voltage switchgear, interlocking devices are often used to limit the operating sequence of the switchgear to ensure that the switchgear can only perform corresponding operations under specific conditions to prevent operation errors by operation and maintenance personnel and prevent accidents, thereby protecting the equipment and the safety of operation and maintenance personnel.

[0003] However, current mechanical interlocking devices are prone to problems such as sticking and deformation, which may lead to failure of the interlocking device. This will reduce the overall quality of the switch cabinet and bring potential safety hazards to the safety of operation and maintenance personnel and the anti-misoperation function of the high-voltage switchgear. Summary of the invention

[0004] In view of the defects of the prior art, the present invention proposes a mechanical interlocking device for an upper-isolating and upper-grounding switch cabinet. An isolating switch and a circuit breaker are arranged in the switch cabinet. The isolating switch is provided with an operating shaft and a switch shaft, and the circuit breaker is provided with an opening knob and a closing knob. The technical scheme comprises: a disc fixedly connected to the switch shaft; a baffle bracket A fixedly connected to the circuit breaker; a baffle A slidably connected to the baffle bracket A; an interlocking rod A arranged between the baffle A and the disc; a top plate bracket A fixedly connected to the circuit breaker; a top plate A slidably connected to the top plate bracket A, a plate member is arranged on the closing knob, and the plate member contacts the top plate A; and a reset spring A fixedly connected between the top plate A and the top plate bracket A.

[0005] In some embodiments, the interlocking rod A is rotatably connected to the baffle A, and the interlocking rod A is rotatably connected to the disk, and the connection axis of the interlocking rod A and the disk deviates from the connection axis of the disk and the switch shaft.

[0006] In some embodiments, the circuit breaker is provided with an output shaft, and the output shaft will rotate when the circuit breaker is opened / closed; it also includes: a top block fixedly connected to the output shaft; a mounting column fixedly connected to the circuit breaker; a pressure plate slidably connected to the mounting column, and the top block contacts the pressure plate; a reset spring B fixedly connected between the pressure plate and the mounting column; a baffle bracket B fixedly connected to the disconnector; a baffle B slidably connected to the baffle bracket B, and the baffle B is transmission-connected to the pressure plate.

[0007] In some embodiments, it also includes: a rotating plate bracket fixedly connected to the isolating switch; a rotating plate A rotatably connected to the rotating plate bracket, and a baffle B is connected to one end of the rotating plate A; an interlocking rod B is arranged between the rotating plate bracket and the pressure plate, one end of the interlocking rod B is connected to the other end of the rotating plate A, and the other end of the interlocking rod B is fixedly connected to the pressure plate.

[0008] In some embodiments, the switch cabinet is provided with a lower cabinet door and also includes: a locking rod guide frame fixedly connected to the switch cabinet; a locking rod A slidably connected to the locking rod guide frame, the locking rod A is fixedly connected to the baffle A; and a return spring C fixedly connected between the locking rod A and the locking rod guide frame.

[0009] In some embodiments, it also includes: a locking rod B slidably connected to the locking rod guide frame; a rotating plate B rotatably connected to the locking rod guide frame, one end of the rotating plate B is connected to the pressure plate, and the other end of the rotating plate B is connected to the locking rod B; and a return spring D fixedly connected between the locking rod B and the locking rod guide frame.

[0010] In some embodiments, it also includes: a top plate B fixedly connected to the opening knob; an interlocking rod bracket fixedly connected to the circuit breaker; an interlocking rod C slidably connected to the interlocking rod bracket; a reset spring E fixedly connected between the interlocking rod C and the interlocking rod bracket; a baffle C fixedly connected to the interlocking rod C; a reset spring F fixedly connected between the interlocking rod bracket and the baffle C; an interlocking bracket fixedly connected to the circuit breaker; an interlocking rocker arranged on the interlocking bracket; an interlocking support plate fixedly connected to the interlocking rod C, the interlocking support plate being connected to the interlocking rocker; a push plate slidably connected to the interlocking bracket, the push plate being connected to the interlocking rocker, the interlocking support plate being transmission-connected to the push plate, and the push plate being in contact with the lower cabinet door.

[0011] In some embodiments, the interlocking seesaw is configured to be L-shaped, the interlocking seesaw is rotatably connected to the interlocking bracket, the push plate is slidably connected to the interlocking seesaw, and the interlocking seesaw is slidably connected to the interlocking support plate.

[0012] The beneficial effects of the present invention are as follows:

[0013] The present invention transmits power through a disc and an interlocking rod A, converts the torque during the rotation of the disc into power for the baffle A to move up and down, and applies the force applied to the baffle A to the baffle bracket A, thereby preventing the baffle A and the interlocking rod A from bending and deforming to cause interlocking jamming, thereby improving the interlocking reliability of the present invention; the present invention converts the three-dimensional space force into a planar force by converting the spatial distance between the interlocking rod A and the disc, thereby reducing energy loss and improving the transmission accuracy and efficiency of the present invention.

[0014] The present invention uses the baffle B to block and limit the operating shaft, so that the present invention has clear vision and simple structure; by setting the rotating plate A for segmented transmission, the adverse effects of the long distance between the circuit breaker and the disconnector and the deformation of the switch cabinet on the movement of the baffle B will be solved.

[0015] The present invention directly uses the state of the isolating switch and the state of the circuit breaker to limit / unlock the opening of the lower cabinet door, so that the expression of the present invention is direct and the structure is simple; when the locking rod A and the locking rod B limit the lower cabinet door, the moving power is mainly provided by the elastic force of the spring. Therefore, the present invention can eliminate the jamming and deformation problems caused by the coordination problems of other interlocking parts when limiting or unlocking the cabinet door, thereby improving the interlocking reliability.

[0016] The present invention limits the force of the opening knob torque by using the baffle C, and the baffle C converts the force to the interlocking rod bracket, so that the force on the opening knob and the baffle C is stabilized, the mechanical properties of the present invention are improved, and the structural stability of the present invention is improved; and the interlocking rod C and the interlocking seesaw are used for transmission, so that the moving power of the baffle C and the push plate acts on the interlocking rod bracket and the interlocking bracket, thereby eliminating the jamming phenomenon caused by the bending deformation of the cabinet door interlocking rod and improving the interlocking reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the isolating switch, the circuit breaker and the lower cabinet door of the present invention.

[0018] Figure 2 It is a schematic diagram of the overall structure of the present invention from the rear perspective.

[0019] Figure 3 It is a schematic diagram of the position structure of the isolating switch, the circuit breaker and the first interlocking mechanism in the present invention.

[0020] Figure 4 It is a schematic diagram of the connection structure of the first interlocking mechanism in the present invention.

[0021] Figure 5 It is a schematic diagram of the connection structure between the isolating switch and the circuit breaker and the second interlocking mechanism in the present invention.

[0022] Figure 6 This is a separation diagram of the connection structure of part of the second interlocking mechanism in the present invention.

[0023] Figure 7 It is a schematic diagram of the connection structure between the circuit breaker and the third interlocking mechanism in the present invention.

[0024] Figure 8 It is a schematic diagram of the connection structure of the third interlocking mechanism in the present invention.

[0025] Fig. 9 It is a schematic diagram of the connection structure between the circuit breaker and the fourth interlocking mechanism in the present invention.

[0026] Fig.10 It is a schematic diagram of the connection structure of the fourth interlocking mechanism in the present invention.

[0027] The markings in the attached drawings are: 0-lower cabinet door, 1-isolating switch, 2-operating shaft, 3-switch shaft, 4-circuit breaker, 5-opening knob, 6-closing knob, 7-disc, 8-baffle bracket A, 9-baffle A, 10-interlocking rod A, 11-top plate bracket A, 12-top plate A, 13-reset spring A, 14-output shaft, 15-top block, 16-mounting column, 17-pressure plate, 18-reset spring B, 19-baffle bracket B, 20-baffle B, 21-rotating plate bracket, 22-rotating plate A, 23-interlocking rod B, 24-locking rod guide frame, 25-locking rod A, 26-reset spring C, 27-locking rod B, 28-rotating plate B, 29-reset spring D, 30-top plate B, 31-interlocking rod bracket, 32-interlocking rod C, 33-reset spring E, 34-baffle C, 35-reset spring F, 36-interlocking bracket, 37-interlocking rocker, 38-interlocking support plate, 39-push plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example: See Figure 1-Figure 2 The switch cabinet includes a cabinet body, an isolating switch 1 and a circuit breaker 4. The isolating switch 1 and the circuit breaker 4 are arranged on the upper layer of the cabinet body and are protected by an upper cabinet door. The power distribution part of the switch cabinet is arranged on the lower layer of the cabinet body and is protected by a lower cabinet door 0. The isolating switch 1 is provided with a switch shaft 3 and an operating shaft 2. The rotation of the switch shaft 3 will control the isolating switch 1 to switch between the three states of closing, opening and earthing. The operating shaft 2 is used to control the rotation of the switch shaft 3. The circuit breaker 4 is provided with an opening knob 5 for controlling the opening of the circuit breaker 4 and a closing knob 6 for controlling the closing of the circuit breaker 4.

[0030] See also Figure 3-Figure 4A mechanical interlocking device for an upper isolation and upper earthing switch cabinet comprises: a first interlocking mechanism arranged between an isolating switch 1 and a circuit breaker 4, the first interlocking mechanism being used to disable the closing operation of the circuit breaker 4 when the isolating switch 1 is opened, the first interlocking mechanism comprising: a disc 7 fixedly mounted on a switch shaft 3, when the isolating switch 1 is switched between the opening, closing and earthing closing states, the disc 7 will rotate together with the switch shaft 3; a baffle bracket A8 fixedly mounted on the circuit breaker 4; a baffle A9 slidably mounted on the baffle bracket A8, the moving direction of the baffle A9 being the up and down direction; an interlocking rod A10 rotatably mounted between the baffle A9 and the disc 7, the interlocking rod A1 0 and the disk 7 deviate from the connection axis of the disk 7 and the switch shaft 3. Therefore, when the disk 7 rotates forward and reversely, the baffle A9 can be controlled to move up and down through the interlocking rod A10; a top plate bracket A11 fixedly mounted on the circuit breaker 4; a top plate A12 slidably mounted on the top plate bracket A11, and a plate is provided on the closing knob 6, and the plate is in contact with the top plate A12. When the closing knob 6 rotates, the top plate A12 will be squeezed by the plate to move, and the baffle A9 will be able to move to the right side of the top plate A12, and the rotation of the closing knob 6 is limited by limiting the movement of the top plate A12; a reset spring A13 fixedly mounted between the top plate A12 and the top plate bracket A11.

[0031] When the isolating switch 1 is in operation, the switch shaft 3 is controlled to rotate clockwise, and the three state conversions of closing, opening, and earthing of the isolating switch 1 will be realized in sequence. When the isolating switch 1 is closed, the angle of the disk 7 on the switch shaft 3 makes the position of the baffle A9 located above the top plate A12, and the baffle A9 does not restrict the rotation of the closing knob 6; when the isolating switch 1 is controlled to switch from closing to opening, the disk 7 will rotate clockwise for one stage, so that the baffle A9 moves down for one stage. At this time, the baffle A9 moves to the right side of the top plate A12 and abuts against it, so that the closing knob 6 of the circuit breaker 4 cannot be rotated, that is, when the isolating switch 1 is opened, the circuit breaker 4 cannot perform the closing operation; when the isolating switch 1 is controlled to switch from opening to earthing, the disk 7 rotates clockwise for one stage again, and the baffle A9 moves down for one stage again. At this time, the baffle A9 moves to the bottom of the top plate A12, thereby releasing the restriction on the closing knob 6. In summary, by using the first interlocking mechanism, the circuit breaker 4 can be prevented from closing when the disconnector 1 is opened.

[0032] The first interlocking mechanism is transmitted through the disc 7 and the interlocking rod A10, and the torque during the rotation of the disc 7 is converted into the power for the baffle A9 to move up and down, and the force acting on the baffle A9 is applied to the baffle bracket A8, so as to prevent the baffle A9 and the interlocking rod A10 from bending and deforming to cause the interlocking jamming phenomenon, thereby improving the interlocking reliability of the first interlocking mechanism; the first interlocking mechanism converts the three-dimensional space force into the planar force through the spatial distance conversion between the interlocking rod A10 and the disc 7, thereby reducing energy loss and improving the transmission accuracy and efficiency.

[0033] See also Figure 5-Figure 6 The circuit breaker 4 is provided with an output shaft 14, and when the circuit breaker 4 is controlled to open or close, the output shaft 14 will rotate.

[0034] The second interlocking mechanism is also included: a second interlocking mechanism is arranged between the isolating switch 1 and the circuit breaker 4, and the second interlocking mechanism is used to disable the operation of the isolating switch 1 when the circuit breaker 4 is closed. The second interlocking mechanism includes: a top block 15 fixedly installed on the output shaft 14; two mounting columns 16 fixedly installed on the circuit breaker 4; a pressure plate 17 slidably installed between the two mounting columns 16, and the moving direction of the pressure plate 17 is the up and down direction. The top block 15 contacts the pressure plate 17, and the top block 15 rotates to squeeze the pressure plate 17 to move downward; a reset spring B18 fixedly installed between the pressure plate 17 and the mounting columns 16; a baffle bracket B19 fixedly installed on the isolating switch 1; and a baffle B19 slidably installed on the baffle bracket B19. 20, the moving direction of the baffle B20 is the up and down direction, and the movement of the baffle B20 will block the front sides of the two operating shafts 2 of the isolating switch 1 to limit the use of the operating shafts 2; the rotating plate bracket 21 is fixedly installed on the isolating switch 1, and the lower end of the baffle B20 is slidably installed on the rotating plate bracket 21; the rotating plate A22 is rotatably installed on the rotating plate bracket 21, and the lower end of the baffle B20 is slidably installed with the left end of the rotating plate A22; the interlocking rod B23 is arranged between the rotating plate bracket 21 and the pressure plate 17, the upper end of the interlocking rod B23 is slidably installed with the rotating plate bracket 21, and is slidably installed with the right end of the rotating plate A22, and the lower end of the interlocking rod B23 is fixedly installed with the pressure plate 17.

[0035] When the circuit breaker 4 is controlled to switch from opening to closing, the output shaft 14 rotates clockwise, and the output shaft 14 presses the pressure plate 17 downward through the top block 15, and the reset spring B18 is stretched. The pressure plate 17 moves the right end of the rotating plate A22 downward through the interlocking rod B23, so that the rotating plate A22 rotates clockwise, and its left end moves upward to move the baffle B20 upward, and the baffle B20 is blocked in front of the operating shaft 2 of the disconnector 1, so that the operating handle cannot be used to rotate the operating shaft 2, and the operation of the disconnector 1 is disabled; on the contrary, when the circuit breaker 4 is controlled to switch from closing to opening, the output shaft 14 rotates counterclockwise, and the top block 15 is separated from the pressure plate 17, then the reset spring B18 resets the pressure plate 17 upward, and then drives the control baffle B20 to move downward, and cancels the blocking of the operating shaft 2. In summary, the use of the second interlocking mechanism can make the disconnector 1 unusable when the circuit breaker 4 is closed.

[0036] The second interlocking mechanism uses the baffle B20 to block and limit the operating shaft 2, so that the second interlocking mechanism has a clear vision and a simple structure; by setting the rotating plate A22 for segmented transmission, the long distance between the circuit breaker 4 and the disconnector 1 and the deformation of the switch cabinet will solve the adverse effects on the movement of the baffle B20 caused by the long distance between the circuit breaker 4 and the disconnector 1 and the deformation of the switch cabinet.

[0037] See also Figure 7-Figure 8 , further comprising: a third interlocking mechanism disposed between the circuit breaker 4 and the lower cabinet door 0, the third interlocking mechanism being used to restrict the lower cabinet door 0 from opening, so that the lower cabinet door 0 can only be opened when the circuit breaker 4 and the isolating switch 1 are both in the closed state, the third interlocking mechanism comprising: a locking rod guide frame 24 fixedly mounted on the cabinet body, the locking rod guide frame 24 being located above the lower cabinet door 0, the lower end of the pressing plate 17 being slidably mounted on the locking rod guide frame 24; a locking rod A25 slidably mounted on the locking rod guide frame 24, the moving direction of the locking rod A25 being the up-and-down direction, the locking rod A25 being able to move to be inserted into the lower cabinet door 0, thereby restricting the lower cabinet door 0 from opening, the locking rod A25 being fixedly mounted on the baffle A9; a locking rod A25 being sleeved on the locking rod A25 A return spring C26 on the locking rod A25, and both ends of the return spring C26 are fixedly mounted on the locking rod A25 and the locking rod guide frame 24; a locking rod B27 slidably mounted on the locking rod guide frame 24, and the moving direction of the locking rod B27 is the up and down direction, and the locking rod B27 will be able to move to insert into the lower cabinet door 0, thereby restricting the opening of the lower cabinet door 0; a rotating plate B28 rotatably mounted on the locking rod guide frame 24, the right end of the rotating plate B28 is slidably mounted on the lower end of the pressure plate 17, and the left end of the rotating plate B28 cooperates with the upper end of the locking rod B27, and the rotation of the rotating plate B28 will control the locking rod B27 to move upward; a return spring D29 fixedly mounted between the locking rod B27 and the locking rod guide frame 24.

[0038] For the disconnector 1, the baffle A9 is fixed to the locking rod A25, so that the locking rod A25 will also have three corresponding position stages. When the disconnector 1 is switched from closing to opening and then to grounding closing, the locking rod A25 will also move downward in two stages. When the disconnector 1 is closed, the position of the locking rod A25 at this time is separated from the lower cabinet door 0. As the locking rod A25 moves downward in stages, the locking rod A25 will be inserted into the lower cabinet door 0 to restrict the opening of the lower cabinet door 0; for the circuit breaker 4, when the circuit breaker 4 is closed, the pressure plate 17 moves downward, and the right end of the rotating plate B28 is controlled to move downward. The rotating plate B28 is rotated and its left end moves upward, thereby controlling the locking rod B27 to move upward to separate from the lower cabinet door 0, and the reset spring D29 is stretched. When the circuit breaker 4 is opened, the reset spring D29 moves the locking rod B27 downward to lock the lower cabinet door 0, and the rotating plate B28 rotates in the opposite direction to return to its position. In summary, by using the third interlocking mechanism, the lower cabinet door 0 can be opened only when the circuit breaker 4 and the isolating switch 1 are both in the closed state.

[0039] The third interlocking mechanism directly uses the state of the isolating switch 1 and the state of the circuit breaker 4 to limit / unlock the opening of the lower cabinet door 0, making the expression of the third interlocking mechanism direct and the structure simple; when the locking rod A25 and the locking rod B27 limit the lower cabinet door 0, the moving power is mainly provided by the elastic force of the spring. Therefore, the third interlocking mechanism can eliminate the jamming and deformation problems caused by the coordination problems of other interlocking parts when limiting or unlocking the cabinet door, thereby improving the interlocking reliability.

[0040] See also Figure 9-10 , further comprising: a fourth interlocking mechanism arranged between the circuit breaker 4 and the lower cabinet door 0, the fourth interlocking mechanism being used to disable the opening operation of the circuit breaker 4 when the lower cabinet door 0 is opened, the fourth interlocking mechanism comprising: a top plate B30 fixedly mounted on the opening knob 5; an interlocking rod bracket 31 fixedly mounted on the circuit breaker 4; an interlocking rod C32 slidably mounted on the interlocking rod bracket 31, the moving direction of the interlocking rod C32 being the up and down direction; a reset spring E33 fixedly mounted between the interlocking rod C32 and the interlocking rod bracket 31; a baffle C34 fixedly mounted on the interlocking rod C32, when the baffle C34 moves up and down, it will be able to move to the left side of the top plate B30 to abut against it, and through the limit The top plate B30 is controlled to limit the rotation of the opening knob 5; the reset spring F35 is fixedly installed between the interlocking rod bracket 31 and the baffle C34; the interlocking bracket 36 is fixedly installed on the circuit breaker 4; the interlocking rocker 37 rotatably installed on the interlocking bracket 36, and the interlocking rocker 37 is set in an L shape; the interlocking support plate 38 is fixedly installed at the lower end of the interlocking rod C32, and the front end of the interlocking rocker 37 is slidably installed with the interlocking support plate 38. When the interlocking support plate 38 moves up and down, it will control the interlocking rocker 37 to rotate forward and reverse; the push plate 39 is slidably installed on the interlocking bracket 36, and the push plate 39 is slidably installed with the rear end of the interlocking rocker 37, and the front end of the push plate 39 contacts the lower cabinet door 0.

[0041] When the lower cabinet door 0 rotates to close, the lower cabinet door 0 will push the push plate 39 to move backward, and the push plate 39 moves backward to rotate the interlocking rocker 37, and the rear end of the interlocking rocker 37 moves up and the front end moves down, that is, the interlocking support plate 38 moves down, the interlocking rod C32 and the baffle C34 move down, the reset spring E33 and the reset spring F35 are stretched, and the baffle C34 moves to limit the top plate B30, thereby limiting the use of the opening knob 5; when the lower cabinet door 0 is opened, the lower cabinet door 0 is separated from the push plate 39, the reset spring E33 and the reset spring F35 will reset the interlocking rod C32 and the baffle C34 upward, the interlocking rod C32 is reset by the interlocking support plate 38 to rotate the interlocking rocker 37 in the opposite direction, and the interlocking rocker 37 moves forward to reset the push plate 39. At this time, the baffle C34 no longer restricts the top plate B30, and the opening knob 5 can be used to control the opening of the circuit breaker 4.

[0042] The fourth interlocking mechanism limits the force of the torque of the opening knob 5 by using the baffle C34, and the baffle C34 converts the force to the interlocking rod bracket 31, thereby stabilizing the force on the opening knob 5 and the baffle C34, improving the mechanical properties of the fourth interlocking mechanism, and improving the structural stability of the fourth interlocking mechanism; and by using the interlocking rod C32 and the interlocking rocker 37 for transmission, the moving power of the baffle C34 and the push plate 39 acts on the interlocking rod bracket 31 and the interlocking bracket 36, thereby eliminating the jamming phenomenon caused by the bending deformation of the cabinet door interlocking rod and improving the interlocking reliability.

[0043] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The word "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present invention, as long as there is no technical contradiction or conflict, the various technical features mentioned in each embodiment can be combined in any way to form a corresponding implementable technical solution.

[0044] Unless otherwise defined, the technical terms used herein have the same meanings as those generally understood by those skilled in the art to which the present invention belongs; the use of relevant terms herein is only for describing specific embodiments and is not intended to limit the present invention.

Claims

1. A mechanical interlocking device for a top-isolating and top-grounding switch cabinet, wherein an isolating switch (1) and a circuit breaker (4) are arranged in the switch cabinet, an operating shaft (2) and a switch shaft (3) are arranged on the isolating switch (1), and an opening knob (5) and a closing knob (6) are arranged on the circuit breaker (4), characterized in that: include: A disc (7) fixedly connected to a switch shaft (3); a baffle support A (8) fixedly connected to a circuit breaker (4); a baffle A (9) slidably connected to the baffle support A (8); an interlocking rod A (10) arranged between the baffle A (9) and the disc (7), wherein the disc (7) rotates to control the movement of the interlocking rod A (10); a top plate support A (11) fixedly connected to the circuit breaker (4); a top plate A (12) slidably connected to the top plate support A (11), wherein a plate is arranged on a closing knob (6), wherein the plate contacts the top plate A (12), and the baffle A (9) restricts the movement of the top plate A (12), wherein controlling the movement of the baffle A (9) is controlling whether the top plate A (12) is restricted; and a return spring A (13) fixedly connected between the top plate A (12) and the top plate support A (11).

2. A mechanical interlocking device for a top-isolated and top-grounded switch cabinet according to claim 1, characterized in that: The interlocking rod A (10) is rotatably connected to the baffle A (9), and the interlocking rod A (10) is rotatably connected to the disk (7). The connection axis of the interlocking rod A (10) and the disk (7) deviates from the connection axis of the disk (7) and the switch shaft (3).

3. A mechanical interlocking device for a top-isolated and top-grounded switch cabinet according to claim 2, characterized in that: The circuit breaker (4) is provided with an output shaft (14), and the output shaft (14) rotates when the circuit breaker (4) is opened / closed; the circuit breaker (4) further comprises: a top block (15) fixedly connected to the output shaft (14); a mounting column (16) fixedly connected to the circuit breaker (4); a pressure plate (17) slidably connected to the mounting column (16), the top block (15) being in contact with the pressure plate (17), and the top block (15) rotating to control the movement of the pressure plate (17); a return spring B (18) fixedly connected between the pressure plate (17) and the mounting column (16); a baffle support B (19) fixedly connected to the disconnector (1); and a baffle B (20) slidably connected to the baffle support B (19) for shielding the operating shaft (2), wherein the movement of the baffle B (20) is controlled to control whether the operating shaft (2) is shielded, and the baffle B (20) is transmission-connected to the pressure plate (17).

4. A mechanical interlocking device for a top-isolated and top-grounded switch cabinet according to claim 3, characterized in that: Also includes: A rotating plate bracket (21) is fixedly connected to the isolating switch (1); a rotating plate A (22) is rotatably connected to the rotating plate bracket (21), and a baffle plate B (20) is connected to one end of the rotating plate A (22); an interlocking rod B (23) is arranged between the rotating plate bracket (21) and the pressure plate (17), one end of the interlocking rod B (23) is connected to the other end of the rotating plate A (22), and the other end of the interlocking rod B (23) is fixedly connected to the pressure plate (17).

5. The mechanical interlocking device for upper isolation and upper grounding switch cabinet according to claim 4 is characterized in that: The switch cabinet is provided with a lower cabinet door (0), the lower cabinet door (0) is used to protect the power distribution components of the switch cabinet, and also includes: a locking rod guide frame (24) fixedly connected to the switch cabinet; a locking rod A (25) slidably connected to the locking rod guide frame (24), the locking rod A (25) moves to be inserted into the lower cabinet door (0) to restrict the lower cabinet door (0) from opening, and controlling the movement of the locking rod A (25) controls whether the lower cabinet door (0) is restricted from opening, the locking rod A (25) is fixedly connected to a baffle A (9); and a return spring C (26) fixedly connected between the locking rod A (25) and the locking rod guide frame (24).

6. A mechanical interlocking device for a top-isolated and top-grounded switch cabinet according to claim 5, characterized in that: Also includes: A locking rod B (27) is slidably connected to the locking rod guide frame (24), and the locking rod B (27) moves to be inserted into the lower cabinet door (0) to restrict the lower cabinet door (0) from opening. Controlling the movement of the locking rod B (27) controls whether the lower cabinet door (0) is restricted from opening. A rotating plate B (28) is rotatably connected to the locking rod guide frame (24), one end of the rotating plate B (28) is connected to the pressure plate (17), and the other end of the rotating plate B (28) is connected to the locking rod B (27); and a return spring D (29) is fixedly connected between the locking rod B (27) and the locking rod guide frame (24).

7. A mechanical interlocking device for a top-isolated and top-grounded switch cabinet according to claim 6, characterized in that: Also includes: A top plate B (30) fixedly connected to the opening knob (5); an interlocking rod bracket (31) fixedly connected to the circuit breaker (4); an interlocking rod C (32) slidably connected to the interlocking rod bracket (31); a return spring E (33) fixedly connected between the interlocking rod C (32) and the interlocking rod bracket (31); a baffle C (34) fixedly connected to the interlocking rod C (32), the baffle C (34) being used to limit the movement of the top plate B (30), and controlling the movement of the baffle C (34) is to control whether the top plate B (30) is limited; a baffle C (34) fixedly connected to the interlocking rod bracket ( a return spring F (35) between the interlock bracket (31) and the baffle C (34); an interlock bracket (36) fixedly connected to the circuit breaker (4); an interlock rocker (37) arranged on the interlock bracket (36); an interlock support plate (38) fixedly connected to the interlock rod C (32), the interlock support plate (38) being connected to the interlock rocker (37); a push plate (39) slidably connected to the interlock bracket (36), the push plate (39) being connected to the interlock rocker (37), the interlock support plate (38) being transmission-connected to the push plate (39), and the push plate (39) being in contact with the lower cabinet door (0).

8. The mechanical interlocking device for upper isolation and upper grounding switch cabinet according to claim 7 is characterized in that: The interlocking seesaw (37) is arranged in an L shape, the interlocking seesaw (37) is rotatably connected to the interlocking bracket (36), the push plate (39) is slidably connected to the interlocking seesaw (37), and the interlocking seesaw (37) is slidably connected to the interlocking support plate (38).

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