A central switch cabinet and control method thereof

Abstract

The present invention relates to the technical field of center-mounted switch cabinets, and in particular to a center-mounted switch cabinet and a control method thereof, comprising a cabinet body and a maintenance component, wherein the maintenance component comprises three fixed plates, three front doors, a rear door, three functional units, three interlocking mechanisms and three control mechanisms, wherein the three fixed plates are sequentially arranged inside the cabinet body, and the three front doors are sequentially rotatably connected to one side of the cabinet body, and when the functional unit is in a working state, a second locking unit abuts against a second pressure sensor, indicating that the functional unit is in a working position; at this time, a driving motor is started, driving a driving shaft to rotate, causing a gear to rotate and mesh with a rack, driving a clamping block to move downward and enter a limiting groove of a limiting plate, limiting the rear door so that a worker cannot open it for maintenance; thereby improving the safety of operation, ensuring that the rear door can be opened for maintenance only when the functional unit is in a non-working position.

Description

Technical Field

[0001] The present invention relates to the technical field of center-mounted switch cabinets, and in particular to a center-mounted switch cabinet and a control method thereof. Background Art

[0002] At present, in the use of center-mounted switch cabinets, there is only one temperature detection hole on the wall of the switch cabinet, and only the temperature of the cable room can be observed, while the temperature of the busbar room needs to be observed by opening the switch cabinet, which is very inconvenient.

[0003] In the prior art, a busbar room is provided at the upper left of the cabinet, and a relay instrument room is provided at the upper right; a trolley room is provided between the busbar room and the relay instrument room; the rest of the space is set as a cable room; two temperature detection holes are provided on the cabinet wall at the back of the switch cabinet; the two temperature detection holes are respectively provided for the busbar room and the cable room; a busbar room temperature detection hole is provided on the partition of the busbar room, which is horizontal and of the same size as the temperature detection hole on the cabinet wall. Explosion-proof glass is provided in both the temperature detection hole and the busbar room temperature detection hole, which is conducive to directly observing the temperature of the busbar room and ensuring the life safety of the operator during observation.

[0004] However, in the above-mentioned prior art, when maintaining the central switch cabinet, the staff is prone to misoperation, and the maintenance door panel is opened to perform maintenance operations when the equipment is not powered off or is still working, which affects the safety of the staff. Summary of the invention

[0005] The object of the present invention is to provide a center-mounted switch cabinet and a control method thereof, so as to solve the problem in the prior art that when maintaining the center-mounted switch cabinet, workers are prone to make mistakes and open the maintenance door panel to perform maintenance operations when the equipment is not powered off or is still working, thereby affecting the safety of the workers.

[0006] To achieve the above object, the present invention provides a center-mounted switch cabinet, comprising a cabinet body and a maintenance assembly;

[0007] The maintenance assembly includes three fixed plates, three front doors, a rear door, three functional units, three interlocking mechanisms and three control mechanisms. The three fixed plates are sequentially arranged inside the cabinet. The three front doors are sequentially connected to one side of the cabinet for rotation. The rear door is connected to the other side of the cabinet for rotation. The three control mechanisms are respectively arranged on the corresponding fixed plates. The three functional units are respectively arranged on the corresponding fixed plates. The three interlocking mechanisms are respectively arranged on the corresponding functional units and the rear door. The control mechanism is electrically connected to the interlocking mechanism.

[0008] The interlocking mechanism comprises a housing, a driving motor, a driving shaft, a gear, a rack, a block and a limit plate, wherein the housing is arranged on the inner side wall of the cabinet, the driving motor is arranged on one side of the housing, one end of the driving shaft is arranged on the output end of the driving motor, the other end of the driving shaft passes through the housing and is fixedly connected with the gear, the rack is slidably connected with the housing, the gear and the rack are meshed with each other, the block is arranged on one end of the rack, the limit plate is arranged on one side of the rear door, the limit plate has a limit groove, and the block and the limit groove are adapted to each other;

[0009] The interlocking mechanism further comprises a first pressure sensor, a first locking unit, a second pressure sensor and a second locking unit, the fixing plate is provided with the second pressure sensor, the inner wall of the cabinet is provided with the first pressure sensor, the first locking unit is provided on the inner wall of the cabinet, and the second locking unit is provided on the functional unit;

[0010] When the functional unit is in a working state, the second locking unit abuts against the second pressure sensor, indicating that the functional unit is in a working position; at this time, the drive motor starts, driving the drive shaft to rotate, so that the gear rotates and engages with the rack, driving the block to move downward and enter the limiting groove of the limiting plate, and the rear door is limited and cannot be opened; when the functional unit is powered off and the rear door needs to be opened for maintenance, the control mechanism starts, driving the functional unit to move and contact with the first locking unit, thereby abutting against the first pressure sensor, and at the same time, the second locking unit no longer abuts against the second pressure sensor, and the value of the second pressure sensor returns to zero, indicating that the functional unit is no longer in the working position and reaches a preset position waiting for maintenance; finally, the interlocking mechanism is started, the block disengages from the limiting groove, and the rear door can be opened for maintenance.

[0011] Wherein, the functional unit includes a support plate and a center-mounted switch cabinet device, the support plate is arranged on the control mechanism, and the center-mounted switch cabinet device is arranged above the support plate.

[0012] Among them, the first locking unit includes a first cylinder, a first telescopic rod, a first spring, a first oblique block and a connecting rod, the first cylinder is arranged on the inner wall of the cabinet, the two ends of the first spring are movably connected to the inner wall of the first cylinder and one end of the first telescopic rod respectively, the other end of the first telescopic rod is fixedly connected to the first oblique block, the first pressure sensor is arranged on the inner wall of the cabinet, one end of the connecting rod is fixedly connected to the first oblique block, and the other end of the connecting rod is aligned with the first pressure sensor.

[0013] Among them, the second locking unit includes a second cylinder, a second telescopic rod, a second spring, a second inclined block and a roller, the second cylinder is arranged below the support plate, the two ends of the second spring are respectively movably connected to the inner wall of the second cylinder and one end of the second telescopic rod, the other end of the second telescopic rod is fixedly connected to the second inclined block, the support plate has a groove, the second inclined block and the groove are adapted to each other, the roller is arranged below the second inclined block, and the second pressure sensor is arranged inside the groove.

[0014] Among them, the control mechanism includes a slide rail, a slider, a control motor, a threaded rod and a reinforcement plate, the slide rail is arranged above the fixed plate, the slider is slidably connected to the slide rail, the control motor is arranged on one side of the slide rail, one end of the threaded rod is fixedly connected to the output end of the control motor, the other end of the threaded rod passes through the slide rail and is rotatably connected to the inner wall of the slide rail, the slider has a threaded hole, the threaded hole and the threaded rod are adapted to each other, the support plate is fixedly connected to the slider and is located above the slider, and the two ends of the reinforcement plate are respectively fixedly connected to one side of the slider and the bottom of the support plate.

[0015] Wherein, the center-mounted switch cabinet further includes three support components, and the three support components are respectively arranged on the corresponding support plates.

[0016] Wherein, the supporting assembly includes a first cylinder, a mounting groove, a second cylinder, a pressing block and two supporting blocks, the first cylinder is rotatably connected to the supporting plate and is located below the supporting plate, the output end of the first cylinder is rotatably connected to the mounting groove, one end of the mounting groove is rotatably connected to the bottom of the supporting plate, the second cylinder is arranged inside the mounting groove, the output end of the second cylinder is fixedly connected to the pressing block, and the two supporting blocks are symmetrically arranged on both sides of the pressing block.

[0017] The present invention also provides a method for a centrally mounted switch cabinet, using the centrally mounted switch cabinet described above, comprising the following steps:

[0018] When the functional unit is in a working state, the second spring drives the second inclined block to move and abuts against the second pressure sensor, indicating that the functional unit is in a working position;

[0019] At this time, the drive motor starts, driving the drive shaft to rotate, causing the gear to rotate and mesh with the rack, driving the block to move downward and enter the limiting groove of the limiting plate, limiting the rear door so that the staff cannot open it for maintenance;

[0020] When the functional unit is powered off and the rear door needs to be opened, the control mechanism is activated to drive the functional unit to move;

[0021] At the same time, the support plate of the functional unit contacts the first inclined block, the first inclined block drives the connecting rod so that the connecting rod abuts against the first pressure sensor, and at the same time the second inclined block disengages from the groove, and the value of the second pressure sensor returns to zero, indicating that the functional unit is no longer in the working position and has reached a preset position waiting for maintenance;

[0022] Finally, the interlocking mechanism is activated, the block is disengaged from the limiting groove, the rear door is opened, and the functional unit can be maintained.

[0023] In a centrally mounted switch cabinet and a control method thereof of the present invention, when the functional unit is in a working state, the second locking unit abuts against the second pressure sensor, indicating that the functional unit is in a working position; at this time, the driving motor is started, driving the driving shaft to rotate, so that the gear rotates and meshes with the rack, driving the block to move downward and enter the limiting groove of the limiting plate, limiting the rear door so that the staff cannot open it for maintenance; when the functional unit is powered off and the rear door needs to be opened for maintenance, the control mechanism is started, driving the functional unit to move and contact with the first locking unit, thereby abutting against the first pressure sensor, and at the same time, the first lock The fixed unit no longer abuts against the second pressure sensor, and the value of the second pressure sensor returns to zero, indicating that the functional unit is no longer in the working position and has reached a preset position waiting for maintenance; finally, the interlocking mechanism is started, the card block is disengaged from the limit slot, the back door is opened, and the functional unit can be maintained. Through the above-mentioned structural setting, the safety of operation is improved, ensuring that the back door can only be opened for maintenance when the functional unit is in the non-working position, avoiding the risk of live operation; the operation process is simplified by the automated control device, reducing the possibility of manual error operation; the structure is simple and reliable, easy to implement, and the overall stability and service life of the equipment are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0025] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present invention.

[0026] Figure 2 It is an overall cross-sectional view of the first embodiment of the present invention.

[0027] Figure 3 is a cross-sectional view of a first locking unit of the present invention.

[0028] Figure 4 It is the internal structure diagram of the cabinet of the present invention.

[0029] Figure 5 The present invention Figure 3 A magnified view of the local structure at A.

[0030] Figure 6 The present invention Figure 2 Enlarged view of the local structure at point B.

[0031] Figure 7 It is a structural schematic diagram of the interlocking mechanism of the present invention.

[0032] Figure 8 The present invention Figure 2 Enlarged view of the local structure at location C.

[0033] Fig. 9 It is a schematic diagram of the overall structure of the third embodiment of the present invention.

[0034] Fig.10 It is an overall cross-sectional view of a third embodiment of the present invention.

[0035] Fig.11 It is a flow chart of the steps of the centrally mounted switch cabinet of the method of the present invention.

[0036] 101-cabinet, 102-fixed plate, 103-front door, 104-rear door, 105-housing, 106-driving motor, 107-driving shaft, 108-gear, 109-rack, 110-block, 111-limiting plate, 112-limiting groove, 113-first pressure sensor, 114-second pressure sensor, 115-support plate, 116-central switch cabinet equipment, 117-first cylinder, 118-first telescopic rod, 119-first spring, 120-first inclined block, 121 -connecting rod, 122-second cylinder, 123-second telescopic rod, 124-second spring, 125-second inclined block, 126-roller, 127-groove, 128-slide rail, 129-slider, 130-control motor, 131-threaded rod, 132-reinforcement plate, 133-threaded hole, 201-first cylinder, 202-installation groove, 203-second cylinder, 204-down pressure block, 205-support block, 301-refrigerator, 302-circulation fan, 303-filter, 304-slot. DETAILED DESCRIPTION

[0037] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0038] First embodiment:

[0039] See also Figures 1 to 7 The present invention provides a central switch cabinet, including a cabinet body 101 and a maintenance component, wherein the maintenance component includes three fixing plates 102, three front doors 103, a rear door 104, three functional units, three interlocking mechanisms and three control mechanisms, wherein the interlocking mechanism includes a housing 105, a drive motor 106, a drive shaft 107, a gear 108, a rack 109, a block 110, a limit plate 111, a first pressure sensor 113, a first locking unit, a second pressure sensor 114 and a second locking unit Element, the functional unit includes a support plate 115 and a central switch cabinet device 116, the first locking unit includes a first cylinder 117, a first telescopic rod 118, a first spring 119, a first inclined block 120 and a connecting rod 121, the second locking unit includes a second cylinder 122, a second telescopic rod 123, a second spring 124, a second inclined block 125 and a roller 126, and the control mechanism includes a slide rail 128, a slider 129, a control motor 130, a threaded rod 131 and a reinforcement plate 132.

[0040] Among them, the three fixed plates 102 are sequentially arranged inside the cabinet 101, the three front doors 103 are sequentially rotatably connected to one side of the cabinet 101, the back door 104 is rotatably connected to the other side of the cabinet 101, the three control mechanisms are respectively arranged on the corresponding fixed plates 102, the three functional units are respectively arranged on the corresponding fixed plates 102, the three interlocking mechanisms are respectively arranged on the corresponding functional units and the back door 104, and the control mechanism is electrically connected to the interlocking mechanism; the shell 105 is arranged on the inner side wall of the cabinet 101, the drive motor 106 is arranged on one side of the shell 105, and one end of the drive shaft 107 is arranged on the output of the drive motor 106. The output end, the other end of the driving shaft 107 passes through the shell 105 and is fixedly connected to the gear 108, the rack 109 is slidably connected to the shell 105, the gear 108 and the rack 109 are meshed with each other, the block 110 is arranged at one end of the rack 109, the limiting plate 111 is arranged on one side of the rear door 104, the limiting plate 111 has a limiting groove 112, the block 110 and the limiting groove 112 are adapted to each other; the fixing plate 102 is provided with the second pressure sensor 114, the inner wall of the cabinet 101 is provided with the first pressure sensor 113, the first locking unit is arranged on the inner wall of the cabinet 101, and the second locking unit is arranged on the functional unit. When the functional unit is in working state, the second locking unit abuts against the second pressure sensor 114, indicating that the functional unit is in working position; at this time, the driving motor 106 is started, driving the driving shaft 107 to rotate, so that the gear 108 rotates and meshes with the rack 109, driving the block 110 to move down, enter the limiting groove 112 of the limiting plate 111, and limit the rear door 104, so that the staff cannot open it for maintenance; when the functional unit is powered off and the rear door 104 needs to be opened for maintenance, the control mechanism is started, driving the functional unit to move and contact with the first locking unit, and then abut against the first pressure sensor 113, and at the same time, the first locking unit no longer abuts against the second pressure sensor 114, and the value of the second pressure sensor 114 returns to zero, indicating that the functional unit is no longer in the working position and reaches the preset position waiting for maintenance; finally, the interlocking mechanism is started, the block 110 is disengaged from the limiting groove 112, the rear door 104 is opened, and the maintenance of the functional unit can be carried out.

[0041] Secondly, the support plate 115 is arranged on the control mechanism, and the central switch cabinet device 116 is arranged above the support plate 115. The support plate 115 supports the central switch cabinet device 116.

[0042] Meanwhile, the first cylinder 117 is arranged on the inner wall of the cabinet 101, the two ends of the first spring 119 are movably connected to the inner wall of the first cylinder 117 and one end of the first telescopic rod 118 respectively, the other end of the first telescopic rod 118 is fixedly connected to the first inclined block 120, the first pressure sensor 113 is arranged on the inner wall of the cabinet 101, one end of the connecting rod 121 is fixedly connected to the first inclined block 120, and the other end of the connecting rod 121 is aligned with the first pressure sensor 113. Under the action of the first spring 119, the first telescopic rod 118 drives the first inclined block 120 to protrude, and when the support plate 115 moves over, it contacts the inclined surface of the first inclined block 120, thereby pushing the first inclined block 120 to contract, driving the connecting rod 121 to contact the first pressure sensor 113, and when the support plate 115 moves away, the first spring 119 drives the first inclined block 120 to rebound and reset.

[0043] In addition, the second cylinder 122 is arranged below the support plate 115, the two ends of the second spring 124 are respectively movably connected to the inner wall of the second cylinder 122 and one end of the second telescopic rod 123, the other end of the second telescopic rod 123 is fixedly connected to the second inclined block 125, the support plate 115 has a groove 127, the second inclined block 125 and the groove 127 are adapted to each other, the roller 126 is arranged below the second inclined block 125, and the second pressure sensor 114 is arranged inside the groove 127. The second spring 124 drives the second telescopic rod 123 to pop out and enter the groove 127. At this time, the roller 126 is against the second pressure sensor 114. When the support plate 115 moves, the inclined surface of the second inclined block 125 contacts the groove 127, and then the second inclined block 125 moves up. Then, when the second inclined block 125 is located above the fixed plate 102, the roller 126 contacts the fixed plate 102 to avoid damage caused by friction between the second inclined block 125 and the fixed plate 102, and at the same time, it can also provide a certain support for the support plate 115.

[0044] Finally, the slide rail 128 is arranged above the fixed plate 115, the slider 129 is slidably connected to the slide rail 128, the control motor 130 is arranged on one side of the slide rail 128, one end of the threaded rod 131 is fixedly connected to the output end of the control motor 130, the other end of the threaded rod 131 passes through the slide rail 128 and is rotatably connected to the inner wall of the slide rail 128, the slider 129 has a threaded hole 133, and the threaded hole 133 and the threaded rod 131 are adapted to each other, the support plate 115 is fixedly connected to the slider 129 and is located above the slider 129, and the two ends of the reinforcement plate 132 are respectively fixedly connected to one side of the slider 129 and the bottom of the support plate 115. The control motor 130 is started, driving the threaded rod 131 to rotate, cooperating with the threaded hole 133 , driving the slider 129 to move on the slide rail 128 , so that the support plate 115 moves, and the reinforcement plate 132 reinforces and supports the support plate 115 .

[0045] When a center-mounted switch cabinet of the present embodiment is used, when the center-mounted switch cabinet device 116 is in the working state, the second spring 124 drives the second telescopic rod 123 to pop out and enter the groove 127. At this time, the roller 126 is against the top of the second pressure sensor 114, indicating that the functional unit is in the working position; at this time, the drive motor 106 is started, driving the drive shaft 107 to rotate, so that the gear 108 rotates and meshes with the rack 109, driving the block 110 to move downward and enter the limiting groove 112 of the limiting plate 111, limiting the rear door 104 so that the staff cannot open it for maintenance; when the center-mounted switch cabinet device 116 is powered off and the rear door 104 needs to be opened for maintenance, the control mechanism is started, driving the support plate 115 to move and contact with the inclined surface of the first inclined block 120, thereby pushing the first inclined block 120 to contract, driving the connecting rod 121 and the connecting rod 121 to contact with the connecting rod 121, and the connecting rod 121 is connected to the connecting rod 121. The first pressure sensor 113 is in contact with the first pressure sensor 113, and due to the movement of the support plate 115, the inclined surface of the second inclined block 125 is in contact with the groove 127, and then the second inclined block 125 moves up, disengages from the groove 127, and no longer abuts against the second pressure sensor 114. The value of the second pressure sensor 114 returns to zero, indicating that the functional unit is no longer in the working position and reaches the preset position waiting for maintenance; finally, the interlocking mechanism is started, the blocking block 110 is disengaged from the limiting groove 112, and the rear door 104 is opened to perform maintenance on the functional unit. The above-mentioned structural setting improves the safety of operation, ensures that the rear door 104 can be opened for maintenance only when the functional unit is in the non-working position, and avoids the risk of live operation; the operation process is simplified by the automated control device, and the possibility of manual error operation is reduced; the structure is simple and reliable, easy to implement, and the overall stability and service life of the equipment are improved.

[0046] Second embodiment:

[0047] Based on the first embodiment, please refer to Figure 8 The present invention provides a centrally mounted switch cabinet, which also includes three support components, wherein the support components include a first cylinder 201, a mounting groove 202, a second cylinder 203, a lower pressing block 204 and two support blocks 205.

[0048] The three support assemblies are respectively disposed on the corresponding support plates 115. The support assemblies can provide enhanced support to the support plates 115 to prevent the single slider 129 from being unstable.

[0049] Secondly, the first cylinder 201 is rotatably connected to the support plate 115 and is located below the support plate 115. The output end of the first cylinder 201 is rotatably connected to the mounting groove 202. One end of the mounting groove 202 is rotatably connected to the bottom of the support plate 115. The second cylinder 203 is disposed inside the mounting groove 202. The output end of the second cylinder 203 is fixedly connected to the lower pressing block 204. The two supporting blocks 205 are symmetrically disposed on both sides of the lower pressing block 204. When the first cylinder 201 is started, the mounting groove 202 is driven to rotate and be perpendicular to the fixed plate 102. At this time, the second cylinder 203 is started, driving the lower pressing block 204 to move downward to abut against the fixed plate 102. At the same time, the two supporting blocks 205 are also supported by the fixed plate 102.

[0050] When using a center-mounted switch cabinet of the present embodiment, the first cylinder 201 is started, driving the installation slot 202 to rotate and be perpendicular to the fixed plate 102. At this time, the second cylinder 203 is started, driving the pressing block 204 to move downward to support the fixed plate 102. At the same time, the two support blocks 205 are also supported by the fixed plate 102. When the support plate 115 needs to be moved out of the cabinet 101 for maintenance, the installation slot 202 is rotated and retracted. Through the above-mentioned structural setting, the support plate 115 can be strengthened to avoid the unstable support of the single slider 129.

[0051] Third embodiment:

[0052] The central switch cabinet further includes a heat dissipation component, which is disposed on the cabinet 101. The heat dissipation component includes a refrigerator 301, a circulation fan 302, and a filter 303. The refrigerator 301 is disposed above the cabinet 101, and an air outlet of the refrigerator 301 is communicated with the cabinet 101. The circulation fan 302 is disposed on the inner bottom wall of the cabinet 101. The rear door 104 has a slot 304, and the filter 303 is mounted on the slot 304 by bolts.

[0053] Based on the second embodiment, please refer to Fig. 9 and Fig.10 The present invention provides a centrally mounted switch cabinet, further comprising a heat dissipation component, wherein the heat dissipation component comprises a refrigerator 301 , a circulation fan 302 and a filter 303 .

[0054] The heat dissipation component is disposed on the cabinet 101. The heat dissipation component can dissipate heat inside the cabinet 101 to prevent the functional unit from generating heat when working and affecting performance and equipment safety.

[0055] Secondly, the refrigerator 301 is arranged above the cabinet 101, the air outlet of the refrigerator 301 is connected to the cabinet 101, the circulation fan 302 is arranged on the inner bottom wall of the cabinet 101, the rear door 104 has a slot 304, and the filter 303 is installed on the slot 304 by bolts. After the refrigerator 301 generates cold air, it is input into the cabinet 101. At this time, the circulation fan 302 is started to assist the cold air to circulate in the cabinet 101, so that the cold air flows more evenly, and finally discharged from the slot 304. The filter 303 can prevent external dust from entering from the slot 304.

[0056] When a center-mounted switch cabinet of the present embodiment is used, the refrigerator 301 generates cold air and inputs it into the cabinet 101. At this time, the circulating fan 302 is started to assist the cold air to circulate in the cabinet 101, making the cold air flow more evenly, and finally discharged from the slot 304. The filter 303 can prevent external dust from entering from the slot 304, thereby dissipating the heat inside the cabinet 101 and preventing the functional unit from generating heat when working and affecting the performance and equipment safety.

[0057] See also Fig.11 The present invention also provides a method for a centrally mounted switch cabinet, comprising the following steps:

[0058] S1: When the functional unit is in working state, the second spring 124 drives the second inclined block 125 to move and abut against the second pressure sensor 114, indicating that the functional unit is in working position;

[0059] S2: At this time, the driving motor 106 starts, driving the driving shaft 107 to rotate, so that the gear 108 rotates and meshes with the rack 109, driving the block 110 to move downward and enter the limiting groove 112 of the limiting plate 111, limiting the rear door 104 so that the staff cannot open it for maintenance;

[0060] S3: When the functional unit is powered off and the rear door 104 needs to be opened, the control mechanism is activated to drive the functional unit to move;

[0061] S4: At the same time, the support plate 115 of the functional unit contacts the first inclined block 120, and the first inclined block 120 drives the connecting rod 121, so that the connecting rod 121 abuts against the first pressure sensor 113, and at the same time, the second inclined block 125 is separated from the groove 127, and the value of the second pressure sensor 114 returns to zero, indicating that the functional unit is no longer in the working position and has reached the preset position waiting for maintenance;

[0062] S5: Finally, the interlocking mechanism is activated, the block 110 is disengaged from the limiting groove 112, the rear door 104 is opened, and the functional unit can be maintained.

[0063] Among them, when the functional unit is in a working state, the second spring 124 drives the second inclined block 125 to move and abuts against the second pressure sensor 114, indicating that the functional unit is in a working position; at this time, the drive motor 106 is started, driving the drive shaft 107 to rotate, so that the gear 108 rotates and meshes with the rack 109, driving the block 110 to move downward and enter the limiting groove 112 of the limiting plate 111, limiting the rear door 104 so that the staff cannot open it for maintenance; when the functional unit is powered off and the rear door 104 needs to be opened, the control mechanism starts The first inclined block 120 drives the connecting rod 121, so that the connecting rod 121 abuts against the first pressure sensor 113. At the same time, the second inclined block 125 disengages from the groove 127, and the value of the second pressure sensor 114 returns to zero, indicating that the functional unit is no longer in the working position and has reached the preset position waiting for maintenance. Finally, the interlocking mechanism is started, the block 110 disengages from the limiting groove 112, and the rear door 104 is opened to carry out maintenance of the functional unit.

[0064] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A central switch cabinet, comprising a cabinet body, characterized in that: It also includes maintenance components; The maintenance assembly includes three fixed plates, three front doors, a rear door, three functional units, three interlocking mechanisms and three control mechanisms. The three fixed plates are sequentially arranged inside the cabinet. The three front doors are sequentially connected to one side of the cabinet for rotation. The rear door is connected to the other side of the cabinet for rotation. The three control mechanisms are respectively arranged on the corresponding fixed plates. The three functional units are respectively arranged on the corresponding fixed plates. The three interlocking mechanisms are respectively arranged on the corresponding functional units and the rear door. The control mechanism is electrically connected to the interlocking mechanism. The interlocking mechanism comprises a housing, a driving motor, a driving shaft, a gear, a rack, a block and a limit plate, wherein the housing is arranged on the inner side wall of the cabinet, the driving motor is arranged on one side of the housing, one end of the driving shaft is arranged on the output end of the driving motor, the other end of the driving shaft passes through the housing and is fixedly connected with the gear, the rack is slidably connected with the housing, the gear and the rack are meshed with each other, the block is arranged on one end of the rack, the limit plate is arranged on one side of the rear door, the limit plate has a limit groove, and the block and the limit groove are adapted to each other; The interlocking mechanism further comprises a first pressure sensor, a first locking unit, a second pressure sensor and a second locking unit, the fixing plate is provided with the second pressure sensor, the inner wall of the cabinet is provided with the first pressure sensor, the first locking unit is provided on the inner wall of the cabinet, and the second locking unit is provided on the functional unit; When the functional unit is in a working state, the second locking unit abuts against the second pressure sensor, indicating that the functional unit is in a working position; at this time, the drive motor starts, driving the drive shaft to rotate, so that the gear rotates and engages with the rack, driving the block to move downward and enter the limiting groove of the limiting plate, and the rear door is limited and cannot be opened; when the functional unit is powered off and the rear door needs to be opened for maintenance, the control mechanism starts, driving the functional unit to move and contact with the first locking unit, thereby abutting against the first pressure sensor, and at the same time, the second locking unit no longer abuts against the second pressure sensor, and the value of the second pressure sensor returns to zero, indicating that the functional unit is no longer in the working position and reaches a preset position waiting for maintenance; finally, the interlocking mechanism is started, the block disengages from the limiting groove, and the rear door can be opened for maintenance.

2. The center-mounted switch cabinet according to claim 1, characterized in that: The functional unit comprises a support plate and a central switch cabinet device, wherein the support plate is arranged on the control mechanism, and the central switch cabinet device is arranged above the support plate.

3. The center-mounted switch cabinet according to claim 2, characterized in that: The first locking unit includes a first cylinder, a first telescopic rod, a first spring, a first oblique block and a connecting rod. The first cylinder is arranged on the inner wall of the cabinet, two ends of the first spring are movably connected to the inner wall of the first cylinder and one end of the first telescopic rod respectively, the other end of the first telescopic rod is fixedly connected to the first oblique block, the first pressure sensor is arranged on the inner wall of the cabinet, one end of the connecting rod is fixedly connected to the first oblique block, and the other end of the connecting rod is aligned with the first pressure sensor.

4. The center-mounted switch cabinet according to claim 3, characterized in that: The second locking unit includes a second cylinder, a second telescopic rod, a second spring, a second inclined block and a roller. The second cylinder is arranged below the support plate. The two ends of the second spring are movably connected to the inner wall of the second cylinder and one end of the second telescopic rod respectively. The other end of the second telescopic rod is fixedly connected to the second inclined block. The support plate has a groove. The second inclined block and the groove are adapted to each other. The roller is arranged below the second inclined block. The second pressure sensor is arranged inside the groove.

5. The center-mounted switch cabinet according to claim 4, characterized in that: The control mechanism includes a slide rail, a slider, a control motor, a threaded rod and a reinforcement plate. The slide rail is arranged above the fixed plate, the slider is slidably connected to the slide rail, the control motor is arranged on one side of the slide rail, one end of the threaded rod is fixedly connected to the output end of the control motor, the other end of the threaded rod passes through the slide rail and is rotatably connected to the inner side wall of the slide rail, the slider has a threaded hole, and the threaded hole and the threaded rod are adapted to each other, the support plate is fixedly connected to the slider and is located above the slider, and the two ends of the reinforcement plate are respectively fixedly connected to one side of the slider and the bottom of the support plate.

6. The center-mounted switch cabinet according to claim 5, characterized in that: The center-mounted switch cabinet further comprises three support components, and the three support components are respectively arranged on the corresponding support plates.

7. The center-mounted switch cabinet according to claim 6, characterized in that: The support assembly includes a first cylinder, a mounting groove, a second cylinder, a lower pressure block and two support blocks. The first cylinder is rotatably connected to the support plate and is located below the support plate. The output end of the first cylinder is rotatably connected to the mounting groove. One end of the mounting groove is rotatably connected to the lower side of the support plate. The second cylinder is arranged inside the mounting groove. The output end of the second cylinder is fixedly connected to the lower pressure block. The two support blocks are symmetrically arranged on both sides of the lower pressure block.

8. A method for controlling a center-mounted switch cabinet, using the center-mounted switch cabinet as claimed in claim 7, characterized in that: The steps include: When the functional unit is in a working state, the second spring drives the second inclined block to move and abuts against the second pressure sensor, indicating that the functional unit is in a working position; At this time, the drive motor starts, driving the drive shaft to rotate, causing the gear to rotate and mesh with the rack, driving the block to move downward and enter the limiting groove of the limiting plate, limiting the rear door so that the staff cannot open it for maintenance; When the functional unit is powered off and the rear door needs to be opened, the control mechanism is activated to drive the functional unit to move; At the same time, the support plate of the functional unit contacts the first inclined block, the first inclined block drives the connecting rod so that the connecting rod abuts against the first pressure sensor, and at the same time the second inclined block disengages from the groove, and the value of the second pressure sensor returns to zero, indicating that the functional unit is no longer in the working position and has reached a preset position waiting for maintenance; Finally, the interlocking mechanism is activated, the block is disengaged from the limiting groove, the rear door is opened, and the functional unit can be maintained.

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