Compact high-protection-grade switch cabinet

Abstract

The invention relates to the technical field of power equipment, and discloses a compact high-protection-grade switch cabinet, which comprises an inner box body, a multi-stage automatic sealing mechanism, a damping protection mechanism and a synchronous heat dissipation mechanism, the inner box body is arranged in a cuboid shape, a plurality of transverse plates are arranged in the inner box body, and the transverse plates are arranged in the inner box body in parallel. When the compact high-protection-grade switch cabinet is used, effective sealing of the switch cabinet can be achieved through the multi-stage automatic sealing mechanism, meanwhile, the sealing effect is fully improved, external dust is prevented from entering the switch cabinet, the switch cabinet forms a whole while sealing is conducted, the switch cabinet is effectively protected through the damping protection mechanism, and the service life of the switch cabinet is prolonged. During protection, impact in different directions can be reduced, the protection effect is fully improved, the multistage automatic sealing mechanism operates and drives the synchronous heat dissipation mechanism to dissipate heat of the switch cabinet, and circuit faults caused by too high temperature in the switch cabinet are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of electric power equipment, in particular to a compact switch cabinet with a high protection level. Background Art

[0002] Switchgear is an electrical device mainly used for power distribution, control and protection in power systems. It is usually installed in places such as substations, distribution rooms or motor control centers. As an indispensable part of the power system, the switchgear is responsible for receiving and distributing electric energy, and controlling and protecting the circuit. The main functions of the switchgear include: Power distribution: The switchgear distributes electric energy to various electrical equipment or lines through internal switches and busbars; Circuit control: The switchgear (such as circuit breakers, disconnectors, etc.) in the switchgear can connect, disconnect or convert the circuit to meet different power needs; Circuit protection: When a fault occurs in the power system, the protection equipment (such as fuses, relays, etc.) in the switchgear will quickly cut off the fault circuit to prevent the fault from expanding and protect equipment and personal safety.

[0003] Switch cabinets are often installed outdoors, with poor sealing and protection. In order to ensure sealing, it is difficult to dissipate heat, and the switch circuits inside are easily damaged by dust, external impact and high temperature. Therefore, a compact high-protection-level switch cabinet is proposed. Summary of the invention

[0004] The present invention aims to solve the technical problem that switch cabinets are often installed outdoors, have poor sealing and protection, and are difficult to dissipate heat to ensure sealing. The internal switch circuits are easily damaged by dust, external impact and high temperature. A compact switch cabinet with a high protection level is provided.

[0005] The technical solution adopted by the present invention to solve its technical problem is: Compact high protection level switch cabinet, including inner box, multi-stage automatic sealing mechanism, shock absorption protection mechanism and synchronous heat dissipation mechanism; The inner box is in the shape of a rectangular parallelepiped, with a plurality of transverse plates arranged inside the inner box, the plurality of transverse plates being arranged in parallel inside the inner box, a plurality of circuit switches being mounted on the surface of the transverse plates, an outer box being sleeved on the outside of the inner box, a cavity being arranged between the inner box and the outer box, the shock absorbing protection mechanism being arranged between the inner box and the outer box, a door shaft being rotatably arranged on the left edge of the outer box, an outer cabinet door being rotatably arranged on the left edge of the outer box via the door shaft, the multi-stage automatic sealing mechanism being arranged between the outer cabinet door and the inner box, and the synchronous heat dissipation mechanism being arranged on the right side inside the outer box. When in use, the multi-stage automatic sealing mechanism can achieve effective sealing of the switch cabinet, and at the same time fully improve the sealing effect, prevent external dust from entering the interior of the switch cabinet, and make the switch cabinet form a whole while sealing. The switch cabinet is effectively protected by the shock-absorbing protection mechanism, and the impact from different directions can be reduced during protection, fully improving the protection effect. The multi-stage automatic sealing mechanism drives the synchronous heat dissipation mechanism to dissipate heat for the switch cabinet while in operation, avoiding excessive temperature inside the switch cabinet and causing circuit failure.

[0006] Further, the multi-stage automatic sealing mechanism includes an inner cabinet door, which is fixedly arranged at the middle of the side wall of the outer cabinet door facing the inner box, the width and height of the outer cabinet door match the width and height of the outer box, the distance between the edge of the inner cabinet door and the edge of the outer cabinet door and the distance between the outer side wall of the inner box and the inner side wall of the outer box match, the thickness of the inner cabinet door matches the distance between the front side wall of the inner box and the front side wall of the outer box, the interior of the outer cabinet door is filled with flexible buffer filler, and the interior of the inner cabinet door is filled with insulating fireproof filler. When in use, the outer cabinet door is closed, and the movement of the outer cabinet door drives the inner cabinet door to move accordingly, so that the outer box and the inner box are closed synchronously to form a double-layer sealing mechanism, which can effectively prevent external dust from entering the interior of the switch cabinet.

[0007] Furthermore, a sealing groove is provided on the side wall of the inner box body connected to the inner cabinet door, and the sealing groove is arranged around the front side wall of the inner box body. A sealing strip is fixedly arranged on the edge of the inner cabinet door facing the inner box body, and the size and shape of the sealing strip match the size and shape of the sealing groove, and the sealing strip is made of rubber. When the inner cabinet door moves, the sealing strip is driven to move accordingly, and when the inner cabinet door and the inner box body are closed, the sealing strip is stuck in the inside of the sealing groove, thereby further improving the sealing effect of the switch circuit inside the inner box body and preventing it from short-circuiting due to excessive dust.

[0008] Further, a handle is rotatably provided on the side wall of the outer cabinet door away from the inner cabinet door, the handle is provided at the middle of the side edge of the outer wall of the outer cabinet door away from the door axis, the inner end of the handle extends to the inner wall of the outer cabinet door, the inner end of the handle is connected with a buckle, a sealing lock is fixedly provided at the middle of the outer edge of the inner wall of the outer box away from the door axis, the position of the sealing lock matches the position of the buckle, a card slot is provided inside the sealing lock, the size and shape of the card slot match the size and shape of the buckle, and a folding rod is rotatably connected to the middle of the side edge of the outer cabinet door close to the door axis. When closing the outer cabinet door, pull the handle, and when the outer cabinet door moves, the buckle and the folding rod are driven to move with it, until the buckle is stuck in the card slot inside the sealing lock. When maintenance is needed, the handle can be turned to make the buckle disengage from the card slot, and then the outer cabinet door is opened, and the inner cabinet door is opened accordingly, so that the switch circuit can be quickly maintained while having both sealing performance.

[0009] Furthermore, the shock-absorbing protection mechanism includes a plurality of first telescopic rods, the outer side of the first telescopic rods is sleeved with a first spring, the plurality of first telescopic rods are symmetrically arranged between the top and bottom of the outer side wall of the inner box body and the inner top and bottom of the outer box body, the bottom and top of the inner box body are symmetrically and fixedly provided with first connecting blocks on both sides, the outer side of the first connecting block is rotatably connected with a first connecting rod, the bottom and top of the inner side wall of the outer box body are symmetrically and fixedly provided with second connecting blocks on both sides, a second connecting rod is fixedly connected between the second connecting blocks, a pair of third connecting blocks are slidably sleeved with the outer walls on both sides of the second connecting rod, the other end of the first connecting rod is rotatably connected to the third connecting block, a second spring is connected between the third connecting blocks, the second spring is sleeved on the outer side wall of the second connecting rod, and the first connecting block, the first connecting rod and the second connecting block are symmetrically arranged on the inner side of the first telescopic rod facing each other. When the device is sealed and impacted by an external force in a vertical direction, the inner box moves toward the top or bottom of the outer box. At this time, the first telescopic rod in the corresponding direction is shortened, and the first spring is compressed, so as to provide preliminary buffering for the inner box. When the first telescopic rod is shortened, it drives the first connecting rod inside it to rotate toward each other, and drives the third connecting block connected to the other end thereof to slide toward each other. The second spring is compressed to generate an elastic force in the opposite direction, so as to further buffer the inner box, effectively reduce the vibration in the vertical direction, and avoid damage to the switch circuit due to vibration.

[0010] Furthermore, a first mounting plate is fixedly provided on the lower side of the inner side wall of the outer box body, and a plurality of pairs of fourth connecting blocks are provided on the side wall of the first mounting plate facing the inner box body, and the fourth connecting blocks are arranged in a vertical direction, and a second mounting plate is fixedly provided on the lower side of the outer side wall of the inner box body, and the height of the second mounting plate is lower than that of the first mounting plate, and a plurality of pairs of fifth connecting blocks are fixedly provided on the side wall of the second mounting plate facing the first mounting plate, and the fifth connecting blocks are arranged in a vertical direction, and the number of the fourth connecting blocks is consistent with the number of the fifth connecting blocks, and a hydraulic rod is connected to rotate between the fourth connecting block and the fifth connecting block, and the hydraulic rods are arranged in parallel, and a third spring is arranged inside the hydraulic rod, and a third connecting rod is connected between the movable ends of the hydraulic rod, and the third connecting rod is arranged perpendicular to the bottom of the outer box body. When the outer box body is subjected to a horizontal impact, the first mounting plate at the corresponding position moves toward the second mounting plate in the opposite direction. At this time, the hydraulic rod is shortened by the pressure, and the third spring inside it is compressed, which weakens part of the horizontal impact while converting the impact force into a vertical thrust on the inner box body, thereby being buffered again by the first spring and the second spring. Through the above steps, impacts in different directions can be weakened and buffered, effectively improving the protection effect.

[0011] Furthermore, a plurality of reinforcing ribs are provided at the inner corners of the outer box body, and the reinforcing ribs are arranged in a triangular shape. The inner end of the folding rod is rotatably connected to a first sliding block, and the first sliding block is slidably arranged in the middle of an inner wall of the outer box body close to the door axis. The other side of the first sliding block is horizontally connected to a sliding rod, and the other end of the sliding rod is slidably connected to a second sliding block. A pair of movable rods are symmetrically rotatably arranged on the upper and lower sides of the second sliding block, and the other end of the movable rod is rotatably connected to a top rod, the top rod is slidably connected to the inner wall of the outer box body, the top rod is vertically arranged to the sliding rod, and a top plate is arranged at the other end of the top rod, and a plurality of second telescopic rods are vertically arranged at the four corners of the bottom of the outer box body, and a base is fixedly arranged at the bottom of the second telescopic rod, and a fourth spring is connected between the bottom of the outer box body and the base, and the fourth spring is arranged around the outside of the second telescopic rod. When buffering the impact in the vertical direction, the outer box body moves downward synchronously, so that the second telescopic rod is shortened and the fourth spring is compressed, which generates elastic force in the opposite direction to the outer box body, thereby further buffering the impact force and fully improving the protection effect; when the outer cabinet door is opened for inspection and maintenance, the folding rod drives the first slider to slide outward, so that the slide bar moves accordingly, and when the slide bar moves, it drives the second slider to start moving, so that the rotating rods on the upper and lower sides of the second slider rotate around the second slider toward the top and bottom of the outer box body, thereby driving the top rod to move toward the top and bottom of the outer box body respectively, until the top plate abuts against the top and bottom of the outer box body, thereby supporting the top and bottom of the outer box body during inspection and maintenance, reducing the vibration generated between the inner box body and the outer box body during maintenance.

[0012] Furthermore, the synchronous heat dissipation mechanism includes a fixed block, which is fixedly arranged on the top of the buckle, a push rod is fixedly arranged on the side wall of the fixed block facing away from the door axis, a drive motor is fixedly arranged on the top of the right inner wall of the outer box body, and a lever switch is arranged on the top of the drive motor, and the position of the lever switch matches the push rod. When the outer cabinet door moves, the fixed block and the push rod are driven to move accordingly. When the outer cabinet door is closed, the push rod generates a thrust on the lever switch on the top of the drive motor, so that the drive motor starts to run. When the outer cabinet door is opened for maintenance, the lever switch is closed under the thrust of the push rod, so that the drive motor is turned off, which is convenient for maintenance.

[0013] Furthermore, the output end of the driving motor is connected to a driving wheel, the outer sleeve of the driving wheel is provided with a transmission chain, a heat dissipation hole is opened on the top right side of the outer box body, a mounting ring is fixedly provided on the inner side of the heat dissipation hole, a transmission shaft is provided at the center of the mounting ring, the outer end of the transmission shaft extends to the inside of the heat dissipation hole, a plurality of blades are fixedly provided on the outer end side wall of the transmission shaft, a driven wheel is provided on the inner end of the transmission shaft, and the other end of the transmission chain is meshed and connected with the driven wheel. When the driving motor is running, it drives the driving wheel to start rotating, and when the driving wheel rotates, it drives the driven wheel to start rotating through the transmission chain meshed with it, so that the blades inside the heat dissipation hole start to rotate, generating outward wind force, thereby achieving cooling of the switch circuit while ensuring the protection effect.

[0014] Furthermore, a plurality of heat dissipation fins are fixedly provided on the upper part of the side wall of the inner box facing the heat dissipation hole, and a plurality of guide plates are fixedly provided outside the heat dissipation hole, and the openings of the guide plates are vertically downward. The heat dissipation fins can be provided to transfer the heat inside the inner box to the part close to the heat dissipation hole, thereby improving the heat dissipation effect. The vertically downward guide plates can be provided to protect the blades and prevent external dust from entering the inner part of the outer box, thereby ensuring the heat dissipation effect while improving the protection and sealing properties.

[0015] Beneficial effects of the present invention: 1. The compact high protection level switch cabinet of the present invention can achieve effective sealing of the switch cabinet through a multi-stage automatic sealing mechanism when in use, and at the same time fully improve the sealing effect, prevent external dust from entering the interior of the switch cabinet, and make the switch cabinet form a whole while sealing. The switch cabinet is effectively protected by a shock-absorbing protection mechanism, and the impact from different directions can be reduced during protection, fully improving the protection effect. The operation of the multi-stage automatic sealing mechanism drives the synchronous heat dissipation mechanism to dissipate heat for the switch cabinet, and prevents the temperature inside the switch cabinet from being too high and causing circuit failure.

[0016] 2. The compact high protection level switch cabinet of the present invention is provided with a multi-stage automatic sealing mechanism, so that the outer cabinet door can be closed when in use. When the outer cabinet door moves, the inner cabinet door is driven to move accordingly, so that the outer box body and the inner box body are closed synchronously to form a double-layer sealing mechanism, which can effectively prevent external dust from entering the interior of the switch cabinet. When the inner cabinet door moves, the sealing strip is driven to move accordingly. When the inner cabinet door and the inner box body are closed, the sealing strip is stuck in the inside of the sealing groove, thereby further improving the sealing effect of the switch circuit inside the inner box body and preventing it from short-circuiting due to excessive dust; when closing the outer cabinet door, pull the handle, and when the outer cabinet door moves, the buckle is driven to move accordingly until the buckle is stuck in the card slot inside the sealing lock. When maintenance is needed, the handle can be turned to make the buckle disengage from the card slot, and then the outer cabinet door is opened, and the inner cabinet door is opened accordingly, so that the switch circuit can be quickly maintained while ensuring sealing performance.

[0017] 3. The compact high protection grade switch cabinet of the present invention is provided with a shock absorbing protection mechanism. When the outer box body is impacted in the horizontal direction, the first mounting plate at the corresponding position moves toward the second mounting plate in the opposite direction. At this time, the hydraulic rod is shortened by pressure, and the third spring inside it is compressed. While weakening part of the horizontal impact, the impact force is converted into a thrust in the vertical direction of the inner box body, so that the first spring and the second spring are used for buffering again. Through the above steps, the impact in different directions can be weakened and buffered, and the protection effect is effectively improved; when the outer cabinet door is opened for maintenance, the folding rod drives the first slider to slide outward, so that the slide bar moves accordingly, and when the slide bar moves, it drives the second slider to start moving, so that the rotating rods on the upper and lower sides of the second slider rotate around the second slider toward the top and bottom of the outer box body, thereby driving the top rod to move toward the top and bottom of the outer box body respectively, until the top plate abuts against the top and bottom of the outer box body, so that the top and bottom of the outer box body are supported during maintenance, and the vibration generated between the inner box body and the outer box body during maintenance is reduced.

[0018] 4. The compact high-protection-level switch cabinet of the present invention is provided with a synchronous heat dissipation mechanism, which can drive the driving wheel to start rotating when the driving motor is running. When the driving wheel rotates, the driven wheel is driven to start rotating through the transmission chain meshing therewith, so that the blades inside the heat dissipation holes start to rotate, generating outward wind force, thereby achieving cooling of the switch circuit while ensuring the protection effect; by providing heat dissipation fins, the heat inside the inner box body can be conducted to the part close to the heat dissipation hole, thereby improving the heat dissipation effect; by providing a vertical downward guide plate, the blades can be protected and external dust can be prevented from entering the interior of the outer box body, thereby ensuring the heat dissipation effect while improving the protection and sealing properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the overall structural diagram of this compact high protection level switch cabinet; Figure 2 This is a side view of the structure of this compact high protection level switch cabinet; Figure 3 This is a top view of the structure of this compact high protection level switch cabinet; Figure 4 This is a schematic diagram of the connection mechanism between the slide bar and the rotating rod of this compact high protection level switch cabinet.

[0020] Description of the accompanying drawings: 1, outer box; 2, outer cabinet door; 3, inner box; 4, second telescopic rod; 5, fourth spring; 6, base; 7, door shaft; 8, horizontal plate; 9, reinforcing rib; 10, first telescopic rod; 11, first spring; 12, second connecting block; 13, second connecting rod; 14, third connecting block; 15, second spring; 16, first connecting rod; 17, first connecting block; 18, first mounting plate; 19, fourth connecting block; 20, hydraulic rod; 21, third spring; 22, fifth connecting block; 23, second connecting plate; 24 , the third connecting rod; 25, sealing groove; 26, inner cabinet door; 27, sealing strip; 28, buckle; 29, fixing block; 30, cooling fin; 31, cooling hole; 32, mounting ring; 33, blade; 34, guide plate; 35, transmission shaft; 36, driven wheel; 37, transmission chain; 38, driving wheel; 40, lever switch; 41, sealing lock; 42, slot; 43, handle; 44, push rod; 45, folding rod; 46, first slider; 47, slide rod; 48, second slider; 49, rotating rod; 50, top rod; 51, top plate. DETAILED DESCRIPTION

[0021] The concept and technical effects of the present invention will be clearly and completely described below in conjunction with embodiments to fully understand the purpose, features and effects of the present invention.

[0022] like Figure 1-3 As shown, the compact high protection level switch cabinet includes an inner box 3, a multi-stage automatic sealing mechanism, a shock absorbing protection mechanism and a synchronous heat dissipation mechanism; The inner box body 3 is arranged in a rectangular parallelepiped, and a plurality of transverse plates are arranged inside the inner box body 3, and a plurality of circuit switches are installed on the surface of the transverse plates. The outer part of the inner box body 3 is sleeved with the outer box body 1, and a cavity is arranged between the inner box body 3 and the outer box body 1. The shock absorbing protection mechanism is arranged between the inner box body 3 and the outer box body 1, and a door shaft 7 is rotatably arranged on the left edge of the outer box body 1. The outer cabinet door 2 is rotatably arranged on the left edge of the outer box body 1 through the door shaft 7. The multi-stage automatic sealing mechanism is arranged between the outer cabinet door 2 and the inner box body 3, and the synchronous heat dissipation mechanism is arranged on the right side inside the outer box body 1. When in use, the multi-stage automatic sealing mechanism can achieve effective sealing of the switch cabinet, and at the same time fully improve the sealing effect, prevent external dust from entering the interior of the switch cabinet, and make the switch cabinet form a whole while sealing. The switch cabinet is effectively protected by the shock-absorbing protection mechanism, and the impact from different directions can be reduced during protection, fully improving the protection effect. The multi-stage automatic sealing mechanism drives the synchronous heat dissipation mechanism to dissipate heat for the switch cabinet while in operation, avoiding excessive temperature inside the switch cabinet and causing circuit failure.

[0023] The multi-stage automatic sealing mechanism includes an inner cabinet door 26, which is fixedly arranged at the middle of the side wall of the outer cabinet door 2 facing the inner box 3, the width and height of the outer cabinet door 2 match the width and height of the outer box 1, the distance between the edge of the inner cabinet door 26 and the edge of the outer cabinet door 2 matches the distance between the outer side wall of the inner box 3 and the inner side wall of the outer box 1, the thickness of the inner cabinet door 26 matches the distance between the front side wall of the inner box 3 and the front side wall of the outer box 1, the interior of the outer cabinet door 2 is filled with flexible buffer filler, and the interior of the inner cabinet door 26 is filled with insulating fireproof filler. When in use, the outer cabinet door 2 is closed, and the movement of the outer cabinet door 2 drives the inner cabinet door 26 to move accordingly, so that the outer box 1 and the inner box 3 are closed synchronously to form a double-layer sealing mechanism, which can effectively prevent external dust from entering the interior of the switch cabinet.

[0024] A sealing groove 25 is provided on the side wall where the inner box 3 is connected to the inner cabinet door 26. The sealing groove 25 is arranged around the front side wall of the inner box 3. A sealing strip 27 is fixedly arranged on the side edge of the inner cabinet door 26 facing the inner box 3. The size and shape of the sealing strip 27 match the size and shape of the sealing groove 25. The sealing strip 27 is made of rubber. When the inner cabinet door 26 moves, the sealing strip 27 moves accordingly. When the inner cabinet door 26 and the inner box 3 are closed, the sealing strip 27 is stuck in the inside of the sealing groove 25, thereby further improving the sealing effect of the switch circuit inside the inner box 3 and preventing it from short-circuiting due to excessive dust.

[0025] A handle 43 is rotatably provided on the side wall of the outer cabinet door 2 away from the inner cabinet door 26. The handle 43 is set in the middle of the edge of the outer wall of the outer cabinet door 2 away from the door axis 7. The inner end of the handle 43 extends to the inner wall of the outer cabinet door 2. The inner end of the handle 43 is connected with a buckle 28. A sealing lock 41 is fixedly provided in the middle of the outer edge of the inner wall of the outer box body 1 away from the door axis 7. The position of the sealing lock 41 matches the position of the buckle 28. A card slot 42 is provided inside the sealing lock 41. The size and shape of the card slot 42 match the size and shape of the buckle 28. A folding rod 45 is rotatably connected to the middle of the edge of the side of the outer cabinet door 2 close to the door axis 7. When closing the outer cabinet door 2, pull the handle 43, and the outer cabinet door 2 moves, driving the buckle 28 and the folding rod 45 to move with it until the buckle 28 is inserted into the slot 42 inside the sealing lock 41. When maintenance is needed, turn the handle 43 to disengage the buckle 28 from the slot 42, and then open the outer cabinet door 2. At this time, the inner cabinet door 26 is opened accordingly, so that the switch circuit can be quickly maintained while ensuring sealing.

[0026] The shock-absorbing protection mechanism includes a plurality of first telescopic rods 10, the first telescopic rods 10 are sleeved with a first spring 11 on the outside, and the plurality of first telescopic rods 10 are symmetrically arranged between the top and bottom of the outer wall of the inner box body 3 and the inner top and bottom of the outer box body 1, and first connecting blocks 17 are symmetrically and fixedly arranged on both sides of the bottom and top of the inner box body 3, and a first connecting rod 16 is rotatably connected to the outside of the first connecting block 17, and second connecting blocks 12 are symmetrically and fixedly arranged on both sides of the bottom and top of the inner wall of the outer box body 1, and a second connecting rod 13 is fixedly connected between the second connecting blocks 12, and a pair of third connecting blocks 14 are slidably sleeved on the outer walls of both sides of the second connecting rod 13, and the other end of the first connecting rod 16 is rotatably connected to the third connecting block 14, and a second spring 15 is connected between the third connecting blocks 14, and the second spring 15 is sleeved on the outer side wall of the second connecting rod 13, and the first connecting block 17, the first connecting rod 16 and the second connecting block 12 are symmetrically arranged on the inner side of the first telescopic rod 10. When the device is sealed and impacted by an external force in a vertical direction, the inner box body 3 moves toward the top or bottom of the outer box body 1. At this time, the first telescopic rod 10 in the corresponding direction is shortened, and the first spring 11 is compressed, so as to provide preliminary buffering for the inner box body 3. When the first telescopic rod 10 is shortened, it drives the first connecting rod 16 inside it to rotate toward each other, and drives the third connecting block 14 connected to the other end thereof to slide toward each other. The second spring 15 is compressed to generate an elastic force in the opposite direction, so as to further buffer the inner box body 3, effectively reduce the vibration in the vertical direction, and avoid damage to the switch circuit due to vibration.

[0027] A first mounting plate 18 is fixedly provided on the lower side of the inner side wall of the outer box body 1, and a plurality of pairs of fourth connecting blocks 19 are provided on the side wall of the first mounting plate 18 facing the inner box body 3, and the fourth connecting blocks 19 are arranged in a vertical direction. A second mounting plate 23 is fixedly provided on the lower side of the outer side wall of the inner box body 3, and the height of the second mounting plate 23 is lower than that of the first mounting plate 18. A plurality of pairs of fifth connecting blocks 22 are fixedly provided on the side wall of the second mounting plate 23 facing the first mounting plate 18, and the fifth connecting blocks 22 are arranged in a vertical direction. The number of the fourth connecting blocks 19 is consistent with the number of the fifth connecting blocks 22. A hydraulic rod 20 is connected to rotate between the fourth connecting block 19 and the fifth connecting block 22, and the hydraulic rod 20 is arranged in parallel. A third spring 21 is arranged inside the hydraulic rod 20, and a third connecting rod 24 is connected between the movable ends of the hydraulic rod 20, and the third connecting rod 24 is arranged perpendicular to the bottom of the outer box body 1. When the outer box body 1 is subjected to a horizontal impact, the first mounting plate 18 at the corresponding position moves toward the second mounting plate 23 in the opposite direction. At this time, the hydraulic rod 20 is shortened by the pressure, and the third spring 21 inside it is compressed, which weakens part of the horizontal impact and converts the impact force into a vertical thrust on the inner box body 3, so that the first spring 11 and the second spring 15 are used for buffering again. Through the above steps, the impact in different directions can be weakened and buffered, and the protection effect can be effectively improved.

[0028] A plurality of reinforcing ribs 9 are provided at the inner corners of the outer box body 1, and the reinforcing ribs 9 are arranged in a triangular shape. The inner end of the folding rod 45 is rotatably connected to a first sliding block 46, and the first sliding block 46 is slidably arranged in the middle of the inner wall of one side of the outer box body 1 close to the door shaft 7. The other side of the first sliding block 46 is horizontally connected to a sliding bar 47, and the other end of the sliding bar 47 is slidably connected to a second sliding block 48. A pair of movable rods are symmetrically rotatably arranged on the upper and lower sides of the second sliding block 48, and the other end of the movable rod is rotatably connected to a top rod 50, and the top rod 50 is slidably connected to the inner wall of the outer box body 1, and the top rod 50 is vertically arranged with the sliding bar 47. A top plate 51 is arranged at the other end of the top rod 50, and a plurality of second telescopic rods 4 are vertically arranged at the four corners of the bottom of the outer box body 1, and a base 6 is fixedly arranged at the bottom of the second telescopic rod 4, and a fourth spring 5 is connected between the bottom of the outer box body 1 and the base 6, and the fourth spring 5 is arranged around the outside of the second telescopic rod 4. When buffering the impact in the vertical direction, the outer box body 1 moves downward synchronously, so that the second telescopic rod 4 is shortened, the fourth spring 5 is compressed, and an elastic force in the opposite direction is generated on the outer box body 1, thereby further buffering the impact force and fully improving the protection effect; when the outer cabinet door 2 is opened for maintenance, the folding rod 45 drives the first slider 46 to slide outward, so that the slide bar 47 moves accordingly, and when the slide bar 47 moves, it drives the second slider 48 to start moving, so that the rotating rods 49 on the upper and lower sides of the second slider 48 rotate around the second slider 48 toward the top and bottom of the outer box body 1, thereby driving the top rod 50 to move toward the top and bottom of the outer box body 1 respectively, until the top plate 51 abuts against the top and bottom of the outer box body 1, thereby supporting the top and bottom of the outer box body 1 during maintenance, reducing the vibration generated between the inner box body 3 and the outer box body 1 during maintenance.

[0029] Furthermore, the synchronous heat dissipation mechanism includes a fixed block 29, which is fixedly arranged on the top of the buckle 28, and a push rod 44 is fixedly arranged on the side wall of the fixed block 29 facing away from the door shaft 7. A driving motor is fixedly arranged on the top of the right inner wall of the outer box body 1, and a lever switch 40 is arranged on the top of the driving motor, and the position of the lever switch 40 matches the push rod 44. When the outer cabinet door 2 moves, the fixed block 29 and the push rod 44 are driven to move accordingly. When the outer cabinet door 2 is closed, the push rod 44 generates a thrust on the lever switch 40 on the top of the driving motor, so that the driving motor starts to run. When the outer cabinet door 2 is opened for maintenance, the lever switch 40 is closed under the thrust of the push rod 44, so that the driving motor is turned off, which is convenient for maintenance.

[0030] The output end of the driving motor is connected to a driving wheel 38, and a transmission chain 37 is provided on the outside of the driving wheel 38. A heat dissipation hole 31 is provided on the top right side of the outer box 1. A mounting ring 32 is fixedly provided on the inside of the heat dissipation hole 31. A transmission shaft 35 is provided at the center of the mounting ring 32. The outer end of the transmission shaft 35 extends to the inside of the heat dissipation hole 31. A plurality of blades 33 are fixedly provided on the outer end side wall of the transmission shaft 35. A driven wheel 36 is provided on the inner end of the transmission shaft 35, and the other end of the transmission chain 37 is meshed and connected with the driven wheel 36. When the driving motor is running, the driving wheel 38 is driven to start rotating. When the driving wheel 38 rotates, the driven wheel 36 is driven to start rotating through the transmission chain 37 meshed with it, so that the blades 33 inside the heat dissipation hole 31 start rotating, generating outward wind force, thereby achieving cooling of the switch circuit while ensuring the protection effect.

[0031] A plurality of heat dissipation fins 30 are fixedly arranged on the upper part of the side wall of the inner box 3 facing the heat dissipation hole 31, and a plurality of guide plates 34 are fixedly arranged outside the heat dissipation hole 31, and the opening of the guide plates 34 is vertically downward. The heat dissipation fins 30 can be provided to transfer the heat inside the inner box 3 to the part close to the heat dissipation hole 31, thereby improving the heat dissipation effect, and the guide plates 34 are provided to protect the blades 33 and prevent external dust from entering the inner part of the outer box 1, thereby ensuring the heat dissipation effect and improving the protection and sealing performance.

[0032] Working principle: when in use, close the outer cabinet door 2. When the outer cabinet door 2 moves, it drives the inner cabinet door 26 to move accordingly, so that the outer box body 1 and the inner box body 3 are closed synchronously to form a double-layer sealing mechanism, which can effectively prevent external dust from entering the interior of the switch cabinet. When the inner cabinet door 26 moves, it drives the sealing strip 27 to move accordingly. When the inner cabinet door 26 and the inner box body 3 are closed, the sealing strip 27 is inserted into the inside of the sealing groove 25, thereby further improving the sealing effect of the switch circuit inside the inner box body 3 to prevent it from short-circuiting due to excessive dust. When closing the outer cabinet door 2, pull the handle 43. When the outer cabinet door 2 moves, it drives the buckle 28 and the folding rod 45 to move accordingly until the buckle 28 is inserted into the card slot 42 inside the sealing lock 41. When maintenance is needed, turning the handle 43 can make the buckle 28 disengage from the card slot 42, and then open the outer cabinet door 2. At this time, the inner cabinet door 26 is opened accordingly, so that the switch circuit can be quickly maintained while having both sealing properties.

[0033] When the sealing of the device is impacted by an external force in the vertical direction, the inner box body 3 moves toward the top or bottom of the outer box body 1. At this time, the first telescopic rod 10 in the corresponding direction is shortened, and the first spring 11 is compressed, so as to provide preliminary buffering for the inner box body 3. When the first telescopic rod 10 is shortened, it drives the first connecting rod 16 inside it to rotate toward each other, and drives the third connecting block 14 connected to the other end thereof to slide toward each other, and the second spring 15 is compressed to generate elastic force in the opposite direction, so as to further buffer the inner box body 3, effectively reducing the vibration in the vertical direction and avoiding the damage of the switch circuit due to vibration; when the outer box body 1 is impacted in the horizontal direction, the first mounting plate 18 at the corresponding position moves toward the second mounting plate 23 in the opposite direction. At this time, the hydraulic rod 20 is shortened by pressure, and the third spring 21 inside it is compressed, which converts the impact force into a thrust in the vertical direction on the inner box body 3 while weakening part of the horizontal impact, so as to be re-impacted by the first spring 11 and the second spring 15 Buffering. Through the above steps, impacts in different directions can be weakened and buffered, effectively improving the protection effect; when buffering the impact in the vertical direction, the outer box body 1 moves downward synchronously, so that the second telescopic rod 4 is shortened, the fourth spring 5 is compressed, and an elastic force in the opposite direction is generated on the outer box body 1, thereby further buffering the impact force and fully improving the protection effect; when the outer cabinet door 2 is opened for maintenance, the folding rod 45 drives the first slider 46 to slide outward, so that the slide bar 47 moves accordingly, and when the slide bar 47 moves, it drives the second slider 48 to start moving, so that the rotating rods 49 on the upper and lower sides of the second slider 48 rotate around the second slider 48 toward the top and bottom of the outer box body 1, thereby driving the top rod 50 to move toward the top and bottom of the outer box body 1 respectively, until the top plate 51 abuts against the top and bottom of the outer box body 1, thereby supporting the top and bottom of the outer box body 1 during maintenance, reducing the vibration generated between the inner box body 3 and the outer box body 1 during maintenance.

[0034] When the outer cabinet door 2 moves, it drives the fixed block 29 and the push rod 44 to move accordingly. When the outer cabinet door 2 is closed, the push rod 44 generates a thrust on the lever switch 40 on the top of the drive motor, so that the drive motor starts to run. When the outer cabinet door 2 is opened for maintenance, the lever switch 40 is closed under the thrust of the push rod 44, so that the drive motor is turned off for easy maintenance. When the drive motor is running, it drives the drive wheel 38 to start rotating. When the drive wheel 38 rotates, it drives the driven wheel 36 to start rotating through the transmission chain 37 engaged therewith, so that the blades 33 inside the heat dissipation hole 31 start to rotate, generating outward wind force, thereby achieving cooling of the switch circuit while ensuring the protection effect; by providing the heat dissipation fins 30, the heat inside the inner box body 3 can be conducted to the part close to the heat dissipation hole 31, thereby improving the heat dissipation effect; by providing the vertical downward guide plate 34, the blades 33 can be protected, and external dust can be prevented from entering the interior of the outer box body 1, thereby ensuring the heat dissipation effect while improving the protection and sealing properties.

[0035] The above embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work shall all fall within the scope of protection of the present invention.

Claims

1. Compact high protection level switchgear, characterized by: It comprises an inner box (3), a multi-stage automatic sealing mechanism, a shock absorbing and protective mechanism, and a synchronous heat dissipation mechanism; The inner box (3) is arranged in a rectangular parallelepiped, a plurality of transverse plates (8) are arranged inside the inner box (3), the plurality of transverse plates (8) are arranged in parallel inside the inner box (3), a plurality of circuit switches are installed on the surface of the transverse plates (8), an outer box (1) is sleeved on the outside of the inner box (3), a cavity is arranged between the inner box (3) and the outer box (1), the shock absorbing protection mechanism is arranged between the inner box (3) and the outer box (1), a door shaft (7) is rotatably arranged on the left edge of the outer box (1), an outer cabinet door (2) is rotatably arranged on the left edge of the outer box (1) via the door shaft (7), the multi-stage automatic sealing mechanism is arranged between the outer cabinet door (2) and the inner box (3), and the synchronous heat dissipation mechanism is arranged on the right side inside the outer box (1).

2. The compact high protection level switch cabinet according to claim 1 is characterized in that The multi-stage automatic sealing mechanism comprises an inner cabinet door (26), wherein the inner cabinet door (26) is fixedly arranged at the middle of a side wall of the outer cabinet door (2) facing the inner box body (3), the width and height of the outer cabinet door (2) match the width and height of the outer box body (1), the distance between the edge of the inner cabinet door (26) and the edge of the outer cabinet door (2) and the distance between the outer side wall of the inner box body (3) and the inner side wall of the outer box body (1) match, the thickness of the inner cabinet door (26) matches the distance between the front side wall of the inner box body (3) and the front side wall of the outer box body (1), the interior of the outer cabinet door (2) is filled with a flexible buffer filler, and the interior of the inner cabinet door (26) is filled with an insulating fireproof filler.

3. The compact high protection level switch cabinet according to claim 2 is characterized in that A sealing groove (25) is provided on a side wall of the inner box body (3) connected to the inner cabinet door (26); the sealing groove (25) is arranged around the front side wall of the inner box body (3); a sealing strip (27) is fixedly arranged on an edge of the inner cabinet door (26) facing the inner box body (3); the size and shape of the sealing strip (27) match the size and shape of the sealing groove (25); and the sealing strip (27) is made of rubber.

4. The compact high protection level switch cabinet according to claim 3 is characterized in that A handle (43) is rotatably provided on the side wall of the outer cabinet door (2) away from the inner cabinet door (26); the handle (43) is arranged at the middle of the edge of the outer side wall of the outer cabinet door (2) away from the door shaft (7); the inner end of the handle (43) extends to the inner side wall of the outer cabinet door (2); the inner end of the handle (43) is connected to a buckle (28); a sealing lock (41) is fixedly provided at the middle of the outer edge of the inner wall of the outer box body (1) away from the door shaft (7); the position of the sealing lock (41) matches the position of the buckle (28); a card slot (42) is provided inside the sealing lock (41); the size and shape of the card slot (42) match the size and shape of the buckle (28); and a folding rod (45) is rotatably connected to the middle of the edge of the outer side wall of the outer cabinet door (2) close to the door shaft (7).

5. The compact high protection level switch cabinet according to claim 1 is characterized in that The shock absorbing protection mechanism comprises a plurality of first telescopic rods (10), the first telescopic rods (10) are sleeved with a first spring (11) on the outside, the plurality of first telescopic rods (10) are symmetrically arranged between the top and bottom of the outer side wall of the inner box (3) and the top and bottom of the inner side of the outer box (1), first connecting blocks (17) are symmetrically and fixedly arranged on both sides of the bottom and top of the inner box (3), the first connecting block (17) is rotatably connected to the outside with a first connecting rod (16), and second connecting blocks (12) are symmetrically and fixedly arranged on both sides of the bottom and top of the inner side wall of the outer box (1), A second connecting rod (13) is fixedly connected between the second connecting blocks (12); a pair of third connecting blocks (14) are slidably sleeved on the outer walls of both sides of the second connecting rod (13); the other end of the first connecting rod (16) is rotatably connected to the third connecting block (14); a second spring (15) is connected between the third connecting blocks (14); the second spring (15) is sleeved on the outer wall of the second connecting rod (13); and the first connecting block (17), the first connecting rod (16) and the second connecting block (12) are symmetrically arranged on the inner side of the first telescopic rod (10) facing each other.

6. The compact high protection level switch cabinet according to claim 5, characterized in that The lower side of the inner side wall of the outer box body (1) is fixedly provided with a first mounting plate (18); a side wall of the first mounting plate (18) facing the inner box body (3) is provided with a plurality of pairs of fourth connecting blocks (19); the fourth connecting blocks (19) are arranged in a vertical direction; the lower side of the outer side wall of the inner box body (3) is fixedly provided with a second mounting plate (23); the height of the second mounting plate (23) is lower than that of the first mounting plate (18); a side wall of the second mounting plate (23) facing the first mounting plate (18) is fixedly provided with a plurality of pairs of fifth connecting blocks (19); The fifth connecting block (22) is arranged in a vertical direction, the number of the fourth connecting blocks (19) is the same as the number of the fifth connecting blocks (22), a hydraulic rod (20) is connected to rotate between the fourth connecting block (19) and the fifth connecting block (22), the hydraulic rod (20) is arranged in parallel, a third spring (21) is arranged inside the hydraulic rod (20), a third connecting rod (24) is connected between the movable ends of the hydraulic rod (20), and the third connecting rod (24) is arranged vertically to the bottom of the outer box body (1).

7. The compact high protection level switch cabinet according to claim 6, characterized in that A plurality of reinforcing ribs (9) are arranged at the inner corners of the outer box body (1), and the reinforcing ribs (9) are arranged in a triangular shape. The inner end of the folding rod (45) is rotatably connected to a first sliding block (46), and the first sliding block (46) is slidably arranged at the middle of the inner wall of one side of the outer box body (1) close to the door shaft (7). The other side of the first sliding block (46) is horizontally connected to a sliding rod (47), and the other end of the sliding rod (47) is slidably connected to a second sliding block (48). A pair of movable rods (50) are symmetrically rotatably arranged on the upper and lower sides of the second sliding block (48), and the movable rods (50) are rotatably arranged. ) is rotatably connected to a top rod (50), the top rod (50) is slidably connected to the inner wall of the outer box body (1), the top rod (50) and the sliding rod (50) are vertically arranged, and the other end of the top rod (50) is provided with a top plate (51), and a plurality of second telescopic rods (4) are vertically arranged at the four corners of the bottom of the outer box body (1), and a base (6) is fixedly arranged at the bottom of the second telescopic rod (4), and a fourth spring (5) is connected between the bottom of the outer box body (1) and the base (6), and the fourth spring (5) is arranged around the outside of the second telescopic rod (4).

8. The compact high protection level switch cabinet according to claim 4, characterized in that The synchronous heat dissipation mechanism comprises a fixed block (29), the fixed block (29) is fixedly arranged on the top of the buckle (28), a push rod (44) is fixedly arranged on the side wall of the fixed block (29) facing away from the door axis (7), a drive motor (39) is fixedly arranged on the top of the right inner wall of the outer box body (1), and a lever switch (40) is arranged on the top of the drive motor (39), and the position of the lever switch (40) matches the push rod (44).

9. The compact high protection level switch cabinet according to claim 8, characterized in that The output end of the driving motor (39) is connected to a driving wheel (38), the outer sleeve of the driving wheel (38) is provided with a transmission chain (37), a heat dissipation hole (31) is opened on the top right side of the outer box body (1), a mounting ring (32) is fixedly provided on the inner side of the heat dissipation hole (31), a transmission shaft (35) is provided at the center of the mounting ring (32), the outer end of the transmission shaft (35) extends to the inside of the heat dissipation hole (31), a plurality of blades (33) are fixedly provided on the outer end side wall of the transmission shaft (35), a driven wheel (36) is provided on the inner end of the transmission shaft (35), and the other end of the transmission chain (37) is meshingly connected with the driven wheel (36).

10. The compact high protection level switch cabinet according to claim 9, characterized in that A plurality of heat dissipation fins (30) are fixedly provided on the upper portion of a side wall of the inner box body (3) facing the heat dissipation hole (31), and a plurality of guide plates (34) are fixedly provided outside the heat dissipation hole (31), with the openings of the guide plates (34) facing vertically downward.

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