Extensible ring main unit

Abstract

The invention relates to the technical field of ring main units, and particularly discloses an extensible ring main unit. According to the extensible ring main unit, the purposes of easy expansion and active heat dissipation are achieved, the main box body is supported by the box body support, air guided in by the cooling device is guided out through the air outlet, the air outlet is formed above the cooling device, heat can be guided out easily, the top of the moving device is automatically cleaned, and the service life of the moving device is prolonged. Dust accumulated on the top of the moving device is cleaned after installation and maintenance are completed, so that the dust content in the box body is reduced, long-time stable operation in the box body is facilitated, the expansion device is used for fixing and quickly dismounting and mounting components, quick expansion and mounting are facilitated, and the practicability is high. And the inclined design of the expansion device is beneficial to reducing dust accumulated on the surface of the component, so that the long-time stable operation of the component is facilitated, and the cooling device purifies and drives the introduced air, so that the interior of the box body is cooled.

Description

Technical Field

[0001] The present invention relates to the technical field of ring main units, and specifically to an expandable ring main unit. Background Art

[0002] With the development of society, the power demand continues to climb, the network scale is constantly expanding, the number of network nodes to be connected increases, and higher requirements are placed on the power supply reliability and stability. Traditional ring main units are difficult to meet the growing demands for node connection, bandwidth, service, etc. Therefore, expandable ring main units are needed to flexibly increase nodes, bandwidth, and services. With the continuous progress of network technology, technologies such as remote communication and modular design are becoming increasingly mature, providing technical support for the expansion of ring main units. Through the remote communication module, the remote monitoring and expansion functions of the ring main unit can be realized; the modular design makes equipment replacement and upgrade more convenient. Traditional ring main units are relatively fixed in structure and function, difficult to expand, and lack flexibility, making it difficult to adapt to complex and changeable application scenarios. When expanding, it may be necessary to transform the entire cabinet body, which is a complex, costly, and time-consuming process.

[0003] The current ring main units lack heat dissipation measures. The heat generated by components during long-term operation is not conducive to long-term stable operation. At the same time, installation and expansion are relatively troublesome, making it inconvenient to carry out expansion installation. Summary of the Invention

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: An expandable ring main unit, including a main cabinet body, a cabinet body support is fixedly connected to the bottom of the main cabinet body, an air outlet is communicated with the top of the side surface of the main cabinet body, a cabinet door is rotatably connected to the inner wall of the main cabinet body through a rotating shaft, a moving device is fixedly connected to the side surface of the cabinet door, an expansion device is fixedly connected to the bottom of the moving device, a cooling device is fixedly connected to the bottom of the inner wall of the main cabinet body, and the cooling device is arranged at the bottom of the expansion device; The mobile device includes a mobile top plate. The top of the mobile top plate is rotatably connected to a connecting rod through a rotating shaft. One end of the connecting rod away from the mobile top plate is rotatably connected to a fixed seat through a rotating shaft. The bottom of the connecting rod is fixedly connected to a driving gear. A part of the top of the mobile top plate on the side of the driving gear is rotatably connected to a driven gear through a rotating shaft. The side surface of the driven gear meshes with the side surface of the driving gear. The side surface of the driven gear is fixedly connected to a first cleaning brush. One side of the top of the mobile top plate away from the connecting rod is fixedly connected to a first sliding strip. The side surface of the first sliding strip is sleeved and slidably connected to a first sliding groove. The top of the first sliding groove is fixedly connected to the inner top wall of the main box body. The side surface of the fixed seat is fixedly connected to the side surface of the box door panel. The bottom of the first cleaning brush is fixedly connected to the top of the mobile top plate. The box door panel drives the fixed seat to move. The fixed seat drives the connecting rod to move. The connecting rod drives the mobile top plate to move. The mobile top plate drives the first sliding strip to move. The first sliding strip slides along the inner wall of the first sliding groove, thereby limiting the sliding track of the mobile top plate. During the movement of the connecting rod, it drives the driving gear to rotate. The driving gear rotates and drives the driven gear to rotate through meshing. The driven gear rotates and drives the first cleaning brush to move, thereby driving the first cleaning brush to move on the surface of the mobile top plate, thereby cleaning the top of the mobile top plate, thereby cleaning the dust, and at the same time driving the expansion device to move out of the inside of the main box body, which is convenient for installation and disassembly compared with the traditional distribution box, thereby facilitating expansion and installation.

[0005] Preferably, the expansion device includes an expansion seat. The bottom of the expansion seat is provided with ventilation holes adapted to the cooling device. The side surface of the expansion seat is fixedly connected to a fixed bracket. The side surface of the expansion seat is fixedly connected to an expansion frame. One side of the inner wall of the expansion frame close to the fixed bracket is fixedly connected to a vertical braking strip. One side of the inner wall of the expansion frame away from the vertical braking strip is fixedly connected to a horizontal braking strip. The side surface of the horizontal braking strip is slidably connected to an expansion component. The top of the fixed bracket is fixedly connected to the bottom of the mobile top plate.

[0006] Preferably, the expansion component includes an expansion base. The bottom of the expansion base is fixedly connected to an expansion bottom plate. One side of the bottom of the expansion base away from the expansion bottom plate is fixedly connected to a horizontal braking plate. The side surface of the horizontal braking plate is rotatably connected to a fixed rotating shaft through a bracket. The side surface of the fixed rotating shaft is sleeved and rotatably connected to a torsion spring. One side of the fixed rotating shaft away from the horizontal braking plate is fixedly connected to a vertical braking plate through a bracket. The top of the vertical braking plate is fixedly connected to a vertical braking strip. The top of both the expansion base and the vertical braking plate is fixedly connected to a rotating handle. The side surface of the horizontal braking plate is slidably connected to the side surface of the horizontal braking strip. The side surface of the vertical braking strip is slidably connected to the side surface of the vertical braking strip.

[0007] Preferably, the cooling device includes a fan bracket, the top of the fan bracket is fixedly connected with a ventilation pipe, the inner wall of the ventilation pipe is fixedly connected with a fan motor, a fan assembly is fixedly connected to the driving shaft of the fan motor, a filtering assembly is fixedly connected to one end of the ventilation pipe away from the fan assembly, a dust collecting assembly is fixedly connected to one side of the filtering assembly away from the ventilation pipe, and the bottom of the fan bracket is fixedly connected to the inner wall bottom of the main box body.

[0008] Preferably, the fan assembly includes a fan shaft, a fan fixing frame is fixedly connected to the side of the fan shaft, a forward fan is sleeved and rotatably connected to the side of the fan shaft, a first toothed ring is fixedly connected to the side of the forward fan, a first reversing gear is meshed with the side of the first toothed ring, a second toothed ring is meshed with the side of the first reversing gear away from the first toothed ring, a reverse fan is fixedly connected to the side of the second toothed ring away from the first reversing gear, a transverse air guide plate is fixedly connected to the side of the forward fan, the forward fan is sleeved on the driving shaft of the fan motor and fixedly connected to the driving shaft of the fan motor, and the bottom of the fan fixing frame is fixedly connected to the inner wall bottom of the main box body.

[0009] Preferably, the filtering assembly includes a filtering housing, a filter screen is fixedly connected to the inner wall of the filtering housing, a fixing part of a rotating sleeve is fixedly connected to the side of the filter screen, a pneumatic fan blade is fixedly connected to the rotating part of the rotating sleeve, and the side of the filtering housing is fixedly connected to the side of the ventilation pipe.

[0010] Preferably, the dust collection assembly includes a dust collection housing, an inner wall of the dust collection housing is fixedly connected with a dust collection bracket, a side surface of the dust collection bracket is fixedly connected with a rotating shaft, a third gear ring is sleeved and rotatably connected to a side surface of the rotating shaft, a rotating housing is fixedly connected to a side surface of the third gear ring, a second cleaning brush is fixedly connected to a side surface of the rotating housing, a second reversing gear is meshed with a side surface of the third gear ring, a fourth gear ring is meshed with a side surface of the second reversing gear away from the third gear ring, a collection box is slidably connected to a side surface of the dust collection housing, the fourth gear ring is sleeved on a side surface of the rotating shaft and rotatably connected to the rotating shaft, a side surface of the fourth gear ring penetrates through a side surface of a filter screen and is fixedly connected to a rotating part of a rotating sleeve, a side surface of the fourth gear ring is rotatably connected to a side surface of the filter screen, and under the driving action of a forward fan, air flows through a side surface of the filter screen, so as to filter the air. The air drives the pneumatic fan blades when passing through surfaces of the pneumatic fan blades, so as to drive a rotating part of the rotating sleeve to rotate. When the rotating sleeve rotates, the fourth gear ring is driven to rotate. The fourth gear ring drives the second reversing gear to rotate. The second reversing gear drives the third gear ring to rotate. The third gear ring drives the rotating housing to rotate. The rotating housing drives the second cleaning brush to move. The second cleaning brush moves to slide and clean a surface of the filter screen, so as to move dust filtered on the surface of the filter screen, and the dust is swept into an interior of the collection box, so as to facilitate collection of the dust. Moreover, a moving direction of the second cleaning brush is opposite to a rotating direction of the pneumatic fan blades, which is beneficial to cleaning and collection of the dust, and is beneficial to maintenance of the box body.

[0011] The present invention provides an expandable ring main unit, which has the following beneficial effects: 1. For this expandable ring main unit, a box body door panel is provided. The box body door panel drives a fixed seat to move. The fixed seat drives a connecting rod to move. The connecting rod drives a moving top plate to move. The moving top plate drives a first sliding strip to move. The first sliding strip slides along an inner wall of a first sliding groove, so as to define a sliding track of the moving top plate. During the movement of the connecting rod, a driving gear is driven to rotate. The driving gear drives a driven gear to rotate through meshing. The driven gear drives a first cleaning brush to move, so as to drive the first cleaning brush to move on a surface of the moving top plate, so as to clean a top of the moving top plate, so as to clean the dust. At the same time, an expansion device is driven to move out of an interior of the main box body, which is more convenient for installation and disassembly compared with a traditional distribution box, and is beneficial to expansion and installation.

[0012] 2. The expandable ring main unit is provided with a rotating handle. The rotating handle drives the horizontal brake plate and the vertical brake plate to rotate. The horizontal brake plate and the vertical brake plate rotate along the rotation center of the fixed rotating shaft, generating torsion on the torsion spring. The horizontal brake plate and the vertical brake plate stop braking the expansion frame and the vertical brake strip, so that the expansion base can be removed for the installation of components. The components are installed on the side of the expansion bottom plate. During installation, the vertical brake plate and the expansion bottom plate are inserted into the inside of the expansion frame. The vertical brake strip brakes the expansion base horizontally, and the horizontal brake strip brakes the expansion base longitudinally. And the multiple sets of vertical brake strips and horizontal brake strips are conducive to adjusting the position of the expansion base, thus facilitating the adjustment of the position of the components. After the installation is completed, under the elastic force of the torsion spring, the vertical brake plate and the horizontal brake plate are driven to fit with the vertical brake strip and the horizontal brake strip, so as to fix the position. The multiple sets of fixed brackets not only help to improve the overall strength of the expansion base, but also the heat is dissipated through the fixed brackets, thus facilitating the improvement of the heat dissipation efficiency. And the air driven by the cooling device on the side of the ventilation hole directly passes through the gap between the fixed brackets, which is conducive to dissipating heat from the surface of the fixed brackets, thus improving the heat dissipation efficiency.

[0013] 3. The expandable ring main unit is provided with a fan motor. The drive shaft of the fan motor drives the forward fan to rotate. The forward fan drives the first toothed ring to rotate. The rotation of the first toothed ring drives the first reversing gear to rotate. The rotation of the first reversing gear drives the second toothed ring to rotate. The rotation of the second toothed ring drives the reverse fan to rotate. The forward fan rotates to drive the air to enter the inside of the box body after passing through the filter, and under the action of the horizontal air guide plate, the air moves in the vertical direction, thus driving the air to move for heat dissipation. Through the commutation of the first reversing gear, the rotation directions of the reverse fan and the forward fan are opposite, so as to offset the vibration influence brought by the torque when the forward fan starts and runs. At the same time, the air guide directions of the reverse fan and the forward fan are opposite, which is conducive to the extrusion of the air and the overflow from the side of the horizontal air guide plate, thus facilitating the heat dissipation inside the box body.

[0014] 4. The expandable ring network cabinet is provided with a forward fan that flows through the side of the filter screen under the driving action of the forward fan, thereby filtering the air. The air passes through the surface of the pneumatic fan blades to drive the pneumatic fan blades, thereby driving the rotating part of the rotating sleeve to rotate. When the rotating sleeve rotates, it drives the fourth gear ring to rotate. The rotation of the fourth gear ring drives the second reversing gear to rotate. The rotation of the second reversing gear drives the third gear ring to rotate. The rotation of the third gear ring drives the rotating outer shell to rotate. The rotation of the rotating outer shell drives the second cleaning brush to move. The second cleaning brush moves to slide and clean the surface of the filter screen, thereby moving the dust filtered off the surface of the filter screen, thereby sweeping the dust into the inside of the collection box, which is convenient for dust collection. The direction of movement of the second cleaning brush is opposite to the rotation direction of the pneumatic fan blades, which is conducive to cleaning and collecting dust, thereby facilitating the maintenance of the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of an expandable ring main unit according to the present invention; Figure 2 This is a schematic structural diagram of the mobile device of the present invention; Figure 3 This is a schematic diagram of the structure of the expansion device of the present invention; Figure 4 This is a schematic diagram of the structure of the expansion component of the present invention; Figure 5 This is a schematic structural diagram of the cooling device of the present invention; Figure 6 This is a schematic structural diagram of a fan assembly according to the present invention; Figure 7 This is a schematic diagram of the structure of the filter assembly of the present invention; Figure 8 It is a schematic structural diagram of the dust collecting component of the present invention.

[0016] In the figure: 1. Main box; 2. Box bracket; 3. Air outlet; 4. Box door panel; 5. Moving device; 6. Expansion device; 7. Cooling device; 501. Moving top plate; 502. Connecting rod; 503. Fixed seat; 504. Driving gear; 505. Driven gear; 506. First cleaning brush; 507. First slide bar; 508. First slide slot; 601. Expansion seat; 602. Ventilation hole; 603. Fixed bracket; 604. Expansion frame; 605. Vertical brake bar; 606. Horizontal brake bar; 607. Expansion assembly; 6071. Expansion base; 6072. Expansion bottom plate; 6073. Horizontal brake plate; 6074. Fixed shaft; 6075. Torsion spring; 6076. Vertical brake plate; 6077. Vertical brake bar; 6078. Rotating handle; 701. Fan bracket; 702. Ventilation duct; 703. Fan motor; 704. Fan assembly; 705. Filter assembly; 706. Dust collection assembly; 7041. Fan shaft; 7042. Fan mounting bracket; 7043. Forward fan; 7044. First gear ring; 7045. First reversing gear; 7046. Second gear ring; 7047. Reverse fan; 7048. Horizontal air guide plate; 7051. Filter housing; 7052. Filter screen; 7053. Rotating sleeve; 7054. Pneumatic fan blade; 7061. Dust collection housing; 7062. Dust collection bracket; 7063. Rotating shaft; 7064. Third gear ring; 7065. Rotating housing; 7066. Second cleaning brush; 7067. Second reversing gear; 7068. Fourth gear ring; 7069. Collection box. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figures 1 - 2 The present invention provides a technical solution: an expandable ring network cabinet, including a main box body 1, a box body bracket 2 is fixedly connected to the bottom of the main box body 1, an air outlet 3 is connected to the top of the side of the main box body 1, the inner wall of the main box body 1 is rotatably connected to the box body door panel 4 through a rotating shaft, a moving device 5 is fixedly connected to the side of the box door panel 4, the bottom of the moving device 5 is fixedly connected to the expansion device 6, the bottom of the inner wall of the main box body 1 is fixedly connected to the cooling device 7, and the cooling device 7 is arranged at the bottom of the expansion device 6.

[0019] The box bracket 2 supports the main box 1, and the air outlet 3 guides the air introduced by the cooling device 7, thereby performing air circulation inside the box, thereby taking away the heat inside the box, and the gas moves upward due to the heat. The air outlet 3 is arranged above the cooling device 7, which is conducive to the heat extraction. The box door panel 4 drives the moving device 5 to move, and the moving device 5 is moved out under the drive of the box door panel 4, and automatically cleans the top of the moving device 5, thereby cleaning the dust accumulated on the top of the moving device 5 after installation and maintenance, thereby reducing the dust content inside the box, which is conducive to the long-term stable operation of the inside of the box, the expansion device 6 fixes and quickly disassembles and installs the components, which is conducive to rapid expansion and installation, and the inclined design of the expansion device 6 is conducive to reducing the accumulation of dust on the surface of the components, which is conducive to the long-term stable operation of the components, the cooling device 7 purifies and drives the introduced air, thereby cooling the inside of the box.

[0020] The movable device 5 includes a movable top plate 501, the top of the movable top plate 501 is rotatably connected to the connecting rod 502 by a rotating shaft, and the end of the connecting rod 502 away from the movable top plate 501 is rotatably connected to the fixed seat 503 by a rotating shaft, and the bottom of the connecting rod 502 is fixedly connected to the driving gear 504, and the top of the movable top plate 501 on one side of the driving gear 504 is rotatably connected to the driven gear 505 by a rotating shaft, and the side surface of the driven gear 505 is meshed with the side surface of the driving gear 504, and the side surface of the driven gear 505 is fixedly connected to the first cleaning brush 506. The top of the movable top plate 501 is fixedly connected to the side away from the connecting rod 502. The side surface of the first slide bar 507 is sleeved and slidably connected to the first slide groove 508. The top of the first slide groove 508 is fixedly connected to the top of the inner wall of the main box body 1, the side surface of the fixed seat 503 is fixedly connected to the side surface of the box door panel 4, and the bottom of the first cleaning brush 506 is fixedly connected to the top of the movable top plate 501.

[0021] The first gear 507 is moved along the inner wall of the first slide groove 508, thereby limiting the sliding trajectory of the movable top plate 501. During the movement of the connecting rod 502, the driving gear 504 is driven to rotate. The driving gear 504 rotates and drives the driven gear 505 to rotate through meshing. The driven gear 505 rotates and drives the first cleaning brush 506 to move, thereby driving the first cleaning brush 506 to move on the surface of the movable top plate 501, thereby cleaning the top of the movable top plate 501, thereby cleaning the dust. At the same time, the expansion device 6 is driven to move out of the interior of the main box 1, which is convenient for installation and disassembly compared with the traditional distribution box, thereby facilitating expansion and installation.

[0022] See also Figures 1 - 4 The present invention provides a technical solution: the expansion device 6 includes an expansion seat 601, and a ventilation hole 602 adapted to the cooling device 7 is opened at the bottom of the expansion seat 601. The side of the expansion seat 601 is fixedly connected to a fixed bracket 603, and the side of the expansion seat 601 is fixedly connected to an expansion frame 604. The inner wall of the expansion frame 604 is fixedly connected to a vertical brake bar 605 on the side close to the fixed bracket 603, and the inner wall of the expansion frame 604 is fixedly connected to a horizontal brake bar 606 on the side away from the vertical brake bar 605. The side of the horizontal brake bar 606 is slidably connected to an expansion component 607, and the top of the fixed bracket 603 is fixedly connected to the bottom of the movable top plate 501.

[0023] The expansion component 607 includes an expansion base 6071, the bottom of the expansion base 6071 is fixedly connected to the expansion base plate 6072, the bottom of the expansion base 6071 is fixedly connected to a horizontal brake plate 6073 on the side away from the expansion base plate 6072, the side of the horizontal brake plate 6073 is rotatably connected to a fixed shaft 6074 through a bracket, the side of the fixed shaft 6074 is sleeved and rotatably connected to a torsion spring 6075, the side of the fixed shaft 6074 away from the horizontal brake plate 6073 is fixedly connected to a vertical brake plate 6076 through a bracket, the top of the vertical brake plate 6076 is fixedly connected to a vertical brake strip 6077, the top of the expansion base 6071 and the vertical brake plate 6076 are both fixedly connected to a rotating handle 6078, the side of the horizontal brake plate 6073 is slidably connected to the side of the horizontal brake strip 606, and the side of the vertical brake strip 6077 is slidably connected to the side of the vertical brake strip 605.

[0024] When disassembling and installing, manually drive the rotating handle 6078. The rotating handle 6078 drives the horizontal brake plate 6073 and the vertical brake plate 6076 to rotate. The horizontal brake plate 6073 and the vertical brake plate 6076 rotate along the rotation center of the fixed rotating shaft 6074, generating torsion on the torsion spring 6075. The horizontal brake plate 6073 and the vertical brake plate 6076 stop braking the expansion frame 604 and the vertical brake strip 605, so that the expansion base 6071 can be removed to install components. The components are installed on the side of the expansion base plate 6072. When installing, the vertical brake plate 6076 and the expansion base plate 6072 are inserted into the inside of the expansion frame 604. The vertical brake strip 605 brakes the expansion base 6071 horizontally, and the horizontal brake strip 606 brakes the expansion base 6071 longitudinally. And the multiple sets of the vertical brake strip 605 and the horizontal brake strip 606 are beneficial to adjust the position of the expansion base 6071, so as to facilitate the adjustment of the position of the components. After installation, under the elastic force of the torsion spring 6075, the vertical brake plate 6076 and the horizontal brake plate 6073 are driven to fit with the vertical brake strip 605 and the horizontal brake strip 606, so as to fix the position. The multiple sets of the fixing brackets 603 are not only beneficial to improve the overall strength of the expansion base 601, but also the heat is dissipated through the fixing brackets 603, so as to be beneficial to improve the heat dissipation efficiency. And the air driven by the cooling device 7 on the side of the ventilation hole 602 directly passes through the gap between the fixing brackets 603, so as to be beneficial to dissipate the heat on the surface of the fixing brackets 603, thus improving the heat dissipation efficiency.

[0025] Please refer to Figures 1 - 6 , the present invention provides a technical solution: The cooling device 7 includes a fan bracket 701. The top of the fan bracket 701 is fixedly connected with a ventilation pipe 702. The inner wall of the ventilation pipe 702 is fixedly connected with a fan motor 703. A fan assembly 704 is fixedly connected to the drive shaft of the fan motor 703. One end of the ventilation pipe 702 away from the fan assembly 704 is fixedly connected with a filter assembly 705. A dust collection assembly 706 is fixedly connected to the side of the filter assembly 705 away from the ventilation pipe 702. The bottom of the fan bracket 701 is fixedly connected with the inner wall bottom of the main box body 1.

[0026] The fan assembly 704 includes a fan shaft 7041. A fan fixing bracket 7042 is fixedly connected to the side surface of the fan shaft 7041. A forward fan 7043 is sleeved on and rotatably connected to the side surface of the fan shaft 7041. A first toothed ring 7044 is fixedly connected to the side surface of the forward fan 7043. A first reversing gear 7045 meshes with the side surface of the first toothed ring 7044. A second toothed ring 7046 meshes with the side of the first reversing gear 7045 away from the first toothed ring 7044. A reverse fan 7047 is fixedly connected to the side of the second toothed ring 7046 away from the first reversing gear 7045. A transverse air guide plate 7048 is fixedly connected to the side surface of the forward fan 7043. The forward fan 7043 is sleeved on the drive shaft of the fan motor 703 and fixedly connected to the drive shaft of the fan motor 703. The bottom of the fan fixing bracket 7042 is fixedly connected to the bottom of the inner wall of the main box body 1.

[0027] Start the fan motor 703. The drive shaft of the fan motor 703 drives the forward fan 7043 to rotate. The forward fan 7043 drives the first toothed ring 7044 to rotate. The rotation of the first toothed ring 7044 drives the first reversing gear 7045 to rotate. The rotation of the first reversing gear 7045 drives the second toothed ring 7046 to rotate. The rotation of the second toothed ring 7046 drives the reverse fan 7047 to rotate. The forward fan 7043 rotates to drive air to enter the box body after passing through the filter, and under the action of the transverse air guide plate 7048, the air moves in the vertical direction, thereby driving the air to move, so as to dissipate heat. Through the commutation of the first reversing gear 7045, the rotation directions of the reverse fan 7047 and the forward fan 7043 are opposite, thereby offsetting the vibration influence brought by the torque when the forward fan 7043 starts and operates. At the same time, the air guide directions of the reverse fan 7047 and the forward fan 7043 are opposite, which is beneficial to the extrusion of air and overflow from the side surface of the transverse air guide plate 7048, thereby facilitating the heat dissipation inside the box body.

[0028] Please refer to Figures 1 - 8 As shown in the figure, the present invention provides a technical solution: The filter assembly 705 includes a filter housing 7051. A filter net 7052 is fixedly connected to the inner wall of the filter housing 7051. A fixing part of a rotating sleeve 7053 is fixedly connected to the side surface of the filter net 7052. A pneumatic fan blade 7054 is fixedly connected to the rotating part of the rotating sleeve 7053. The side surface of the filter housing 7051 is fixedly connected to the side surface of the ventilation pipe 702.

[0029] The dust collection assembly 706 includes a dust collection housing 7061. An inner wall of the dust collection housing 7061 is fixedly connected to a dust collection bracket 7062. A side surface of the dust collection bracket 7062 is fixedly connected to a rotating shaft 7063. A third gear ring 7064 is sleeved and rotatably connected to a side surface of the rotating shaft 7063. A side surface of the third gear ring 7064 is fixedly connected to a rotating housing 7065. A second cleaning brush 7066 is fixedly connected to a side surface of the rotating housing 7065. A second reversing gear 7067 meshes with a side surface of the third gear ring 7064. A fourth gear ring 7068 meshes with a side surface of the second reversing gear 7067 away from the third gear ring 7064. A collection box 7069 is slidably connected to a side surface of the dust collection housing 7061. The fourth gear ring 7068 is sleeved on a side surface of the rotating shaft 7063 and is rotatably connected to the rotating shaft 7063. A side surface of the fourth gear ring 7068 penetrates through a side surface of the filter screen 7052 and is fixedly connected to a rotating part of the rotating sleeve 7053. A side surface of the fourth gear ring 7068 is rotatably connected to a side surface of the filter screen 7052.

[0030] Driven by the forward fan 7043, air flows through the side surface of the filter screen 7052, thereby filtering the air. The air passes through the surface of the pneumatic fan blade 7054 to drive the pneumatic fan blade 7054, thereby driving the rotating part of the rotating sleeve 7053 to rotate. When the rotating sleeve 7053 rotates, it drives the fourth gear ring 7068 to rotate. The rotation of the fourth gear ring 7068 drives the second reversing gear 7067 to rotate. The rotation of the second reversing gear 7067 drives the third gear ring 7064 to rotate. The rotation of the third gear ring 7064 drives the rotating housing 7065 to rotate. The rotation of the rotating housing 7065 drives the second cleaning brush 7066 to move. The movement of the second cleaning brush 7066 slides and sweeps the surface of the filter screen 7052, thereby moving the dust filtered on the surface of the filter screen 7052, and sweeping the dust into the interior of the collection box 7069, which facilitates the collection of dust. And the moving direction of the second cleaning brush 7066 is opposite to the rotation direction of the pneumatic fan blade 7054, which is conducive to the cleaning and collection of dust, and is conducive to the maintenance of the box body.

[0031] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. Structures, devices, and operation methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art without special description and limitation.

Claims

1. An expandable ring main unit, characterized in that: It includes a main box body (1), a box body support (2) is fixedly connected to the bottom of the main box body (1), an air outlet (3) is communicated with the top of the side surface of the main box body (1), a box body door panel (4) is rotatably connected to the inner wall of the main box body (1) through a rotating shaft, a moving device (5) is fixedly connected to the side surface of the box body door panel (4), an expansion device (6) is fixedly connected to the bottom of the moving device (5), a cooling device (7) is fixedly connected to the bottom of the inner wall of the main box body (1), and the cooling device (7) is arranged at the bottom of the expansion device (6); The moving device (5) includes a moving top plate (501), a connecting rod (502) is rotatably connected to the top of the moving top plate (501) through a rotating shaft, one end of the connecting rod (502) away from the moving top plate (501) is rotatably connected to a fixed seat (503) through a rotating shaft, a driving gear (504) is fixedly connected to the bottom of the connecting rod (502), a driven gear (505) is rotatably connected to a part of the top of the moving top plate (501) on one side of the driving gear (504) through a rotating shaft, the side surface of the driven gear (505) is meshed with the side surface of the driving gear (504), a first cleaning brush (506) is fixedly connected to the side surface of the driven gear (505), a first sliding strip (507) is fixedly connected to the top of the moving top plate (501) on the side away from the connecting rod (502), and a first sliding groove (508) is sleeved and slidably connected to the side surface of the first sliding strip (507).

2. The expandable ring main switch cabinet according to claim 1, wherein: The top of the first sliding groove (508) is fixedly connected to the top of the inner wall of the main box body (1), the side surface of the fixed seat (503) is fixedly connected to the side surface of the box body door panel (4), and the bottom of the first cleaning brush (506) is fixedly connected to the top of the moving top plate (501).

3. The expandable ring main switch cabinet according to claim 1, wherein: The expansion device (6) includes an expansion seat (601), a ventilation hole (602) adapted to the cooling device (7) is opened at the bottom of the expansion seat (601), a fixed support (603) is fixedly connected to the side surface of the expansion seat (601), an expansion frame (604) is fixedly connected to the side surface of the expansion seat (601), a vertical braking strip (605) is fixedly connected to one side of the inner wall of the expansion frame (604) close to the fixed support (603), a horizontal braking strip (606) is fixedly connected to one side of the inner wall of the expansion frame (604) away from the vertical braking strip (605), an expansion component (607) is slidably connected to the side surface of the horizontal braking strip (606), and the top of the fixed support (603) is fixedly connected to the bottom of the moving top plate (501).

4. An expandable ring main unit according to claim 3, characterized in that: The expansion component (607) includes an expansion base (6071). The bottom of the expansion base (6071) is fixedly connected with an expansion bottom plate (6072). On one side of the bottom of the expansion base (6071) away from the expansion bottom plate (6072), a lateral braking plate (6073) is fixedly connected. The side of the lateral braking plate (6073) is rotatably connected with a fixed rotating shaft (6074) through a bracket. A torsion spring (6075) is sleeved and rotatably connected to the side of the fixed rotating shaft (6074). On the side of the fixed rotating shaft (6074) away from the lateral braking plate (6073), a vertical braking plate (6076) is fixedly connected through a bracket. The top of the vertical braking plate (6076) is fixedly connected with a vertical braking strip (6077). Rotating handles (6078) are fixedly connected to the tops of the expansion base (6071) and the vertical braking plate (6076).

5. The expandable ring main switch cabinet according to claim 4, characterized in that: The side of the lateral braking plate (6073) is slidably connected with the side of the horizontal braking strip (606). The side of the vertical braking strip (6077) is slidably connected with the side of the vertical braking strip (605).

6. The expandable ring main switch cabinet according to claim 1, wherein: The cooling device (7) includes a fan bracket (701). The top of the fan bracket (701) is fixedly connected with a ventilation pipe (702). A fan motor (703) is fixedly connected to the inner wall of the ventilation pipe (702). A fan assembly (704) is fixedly connected to the drive shaft of the fan motor (703). One end of the ventilation pipe (702) away from the fan assembly (704) is fixedly connected with a filtering component (705). A dust collecting component (706) is fixedly connected to the side of the filtering component (705) away from the ventilation pipe (702). The bottom of the fan bracket (701) is fixedly connected to the bottom of the inner wall of the main box body (1).

7. The expandable ring main switch cabinet according to claim 6, characterized in that: The fan assembly (704) includes a fan shaft (7041). A fan fixing frame (7042) is fixedly connected to the side of the fan shaft (7041). A forward fan (7043) is sleeved and rotatably connected to the side of the fan shaft (7041). A first toothed ring (7044) is fixedly connected to the side of the forward fan (7043). A first reversing gear (7045) is meshed with the side of the first toothed ring (7044). A second toothed ring (7046) is meshed with the side of the first reversing gear (7045) away from the first toothed ring (7044). A reverse fan (7047) is fixedly connected to the side of the second toothed ring (7046) away from the first reversing gear (7045). A lateral air guide plate (7048) is fixedly connected to the side of the forward fan (7043). The forward fan (7043) is sleeved on the drive shaft of the fan motor (703) and fixedly connected to the drive shaft of the fan motor (703). The bottom of the fan fixing frame (7042) is fixedly connected to the bottom of the inner wall of the main box body (1).

8. An expandable ring main unit according to claim 6, wherein: The filtering component (705) includes a filtering housing (7051), an inner wall of the filtering housing (7051) is fixedly connected with a filter net (7052), a side surface of the filter net (7052) is fixedly connected with a fixing part of a rotating sleeve (7053), a rotating part of the rotating sleeve (7053) is fixedly connected with a pneumatic fan blade (7054), and a side surface of the filtering housing (7051) is fixedly connected with a side surface of a ventilation pipe (702).

9. The expandable ring main switch cabinet according to claim 8, wherein: The dust collection component (706) includes a dust collection housing (7061), an inner wall of the dust collection housing (7061) is fixedly connected with a dust collection support (7062), a side surface of the dust collection support (7062) is fixedly connected with a rotating shaft (7063), a third toothed ring (7064) is sleeved and rotatably connected to a side surface of the rotating shaft (7063), a side surface of the third toothed ring (7064) is fixedly connected with a rotating housing (7065), a side surface of the rotating housing (7065) is fixedly connected with a second cleaning brush (7066), a second reversing gear (7067) is meshed with a side surface of the third toothed ring (7064), a fourth toothed ring (7068) is meshed with a side surface of the second reversing gear (7067) away from the third toothed ring (7064), a collection box (7069) is slidably connected to a side surface of the dust collection housing (7061), the fourth toothed ring (7068) is sleeved on a side surface of the rotating shaft (7063) and rotatably connected to the rotating shaft (7063), a side surface of the fourth toothed ring (7068) penetrates through a side surface of the filter net (7052) and is fixedly connected with a rotating part of the rotating sleeve (7053), and a side surface of the fourth toothed ring (7068) is rotatably connected to a side surface of the filter net (7052).

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