Dustproof electric power cabinet

Abstract

The invention relates to a dustproof power cabinet, which belongs to the technical field of power cabinets and comprises a cabinet body, a front opening is formed in the side wall of the cabinet body, a protective door is rotatably mounted in the front opening, an observation window is arranged at the upper part of the protective door, a rear opening is formed in the side wall, opposite to the front opening, of the cabinet body, and a clamping plate is fixed on the side wall, below the rear opening, of the cabinet body. A clamping plate is arranged on the side wall of the cabinet body, one end of the clamping plate extends obliquely upwards, a filter plate is clamped between the clamping plate and the side wall of the cabinet body, a through hole is formed in the filter plate, a dustproof layer is arranged in the through hole, a movable plate is arranged above the filter plate, and a heat dissipation assembly is arranged above the movable plate. The sealing effect is poor after the protection door is closed, at the moment, the sealing frame body can be extruded between the cabinet body and the protection door through the triggering mechanism, the sealing effect is further achieved, meanwhile, the electric power cabinet can prevent heat from being accumulated in the cabinet body, and dustproof heat dissipation can be provided for the interior of the cabinet body while the sealing protection effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of power cabinets, and in particular to a dustproof power cabinet. Background Art

[0002] The power cabinet is a commonly used housing device for installing electrical equipment such as electrical switchgear, instruments, controllers, etc. It is widely used in various fields. Since a large number of electrical control components are installed in the electrical cabinet, the physical protection function of the electrical cabinet is very important. It is necessary to effectively isolate dust, moisture or corrosive gases and provide necessary protection for internal components. In addition, when the electrical cabinet is in use, maintenance personnel also need to regularly inspect the electrical cabinet. Therefore, the electrical cabinet also needs to retain an open structure, which further increases the difficulty of protection.

[0003] For example, a Chinese invention patent document with announcement number CN109256690B provides a dustproof power cabinet, including an installation box, an installation opening is opened on the side wall of the installation box, dustproof nets are arranged on both sides of the installation opening, and a rectangular frame is arranged between the dustproof nets; the upper and lower ends of the rectangular frame are respectively connected to fixing rods, and the ends of the fixing rods extend into the installation groove; the inner wall of the installation opening is rotatably connected to a rotating shaft, an irregular gear is sleeved on the rotating shaft, and the inner circle of the rectangular frame is provided with a first rack meshing with the irregular gear; a circular groove is also provided on the side wall of the rectangular frame, and a horizontal slide groove is provided on the upper / lower side end of the circular groove, one side end of the inner wall of the horizontal slide groove is connected to a second spring, and the end of the second spring is connected to a second rack; the inner wall of the circular groove is rotatably connected to a spur gear, and a cleaning brush is provided on one side of the spur gear.

[0004] The power cabinet in the invention document has a simple structure, and the motor drives the rotating shaft to rotate, so that the rectangular frame moves up and down; at the same time, during the up and down movement of the rectangular frame, the second rack drives the cleaning brush to rotate under the action of the arc-shaped protrusion and the second spring, so that the cleaning brush moves up and down while rotating, so as to clean thoroughly. The above document achieves the effect of removing dust by continuously moving the cleaning brush. However, the protective effect of the above electrical cabinet is limited. The protection function is only achieved by blocking dust through a dustproof net, and the protection function is relatively single. Summary of the invention

[0005] In order to overcome the technical defects of the prior art, the present invention provides a dustproof power cabinet, which can provide a good sealing environment for internal electrical components and avoid heat accumulation in the cabinet. While having a good sealing and protection effect, it can also provide dustproof and heat dissipation in the cabinet.

[0006] The technical solution adopted by the present invention is: it includes a cabinet body, which is the main supporting and protective component. A protective cover is fixed on the top of the cabinet body, and the outer edge of the protective cover extends to all sides, and a baffle extending downward is fixed on the bottom edge of the protective cover. Usually, an inlet and outlet are opened at the top or bottom of the cabinet body, and it needs to be sealed when setting. The side wall of the cabinet body is provided with a front opening, and a protective door is rotatably installed in the front opening. The upper part of the protective door is provided with an observation window, and the observation window is preferably made of a transparent glass plate. A control box can be set again inside the cabinet body, and the observation window can facilitate personnel to observe the operation of the internal electrical components of the cabinet body. A rear opening is opened on the side wall of the cabinet body opposite to the front opening. Traditional power cabinets only have openings on the front panel, which is difficult to operate when installing cables. A clamping plate is fixed on the side wall of the cabinet body below the rear opening, and one end of the clamping plate is Extending obliquely upward, a filter plate is clamped between the clamping plate and the side wall of the cabinet, the filter plate is provided with a through opening, the through opening is provided with a dustproof layer, a movable plate is provided above the filter plate, the filter plate and the movable plate can be disassembled independently, a heat dissipation component is provided above the movable plate, the heat dissipation component preferably introduces air from the external environment into the cabinet, and then discharges it through the filter plate located below, a water pump is also provided at the bottom of the cabinet, the output end of the water pump extends to the outside of the cabinet through a discharge pipe, and the input pipe of the water pump extends to the bottom of the cabinet, after the installation of the power cabinet is completed, the water pump needs to be powered separately, and a water level switch needs to be provided at the bottom of the cabinet to control the start of the water pump, such as a commonly used float switch, a sealing frame is provided on the inner wall of the cabinet corresponding to the front opening, a trigger mechanism is provided in the protective door, and the trigger mechanism is used to assist the sealing frame in sealing the gap around the protective door.

[0007] Preferably, in order to facilitate the introduction of external cooling air into the cabinet, the heat dissipation assembly includes a bearing plate, a heat dissipation port is opened on the side wall of the bearing plate, an outer ring body is fixed outside the heat dissipation port, a support frame and a filter layer are fixed between the inner walls of the outer ring body, a rotating shaft block is rotatably clamped on the side wall of the support frame, heat dissipation fan blades are fixed on the outer wall of the rotating shaft block, a force wheel is fixed at one end of the rotating shaft block, a power motor is installed on the side wall of the bearing plate through a fixing plate, a power wheel is fixed on the output shaft of the power motor, and the power wheel and the force wheel are power-connected via a synchronous belt.

[0008] Preferably, in order to ensure that the cabinet can still maintain a good seal after the movable plate, the filter plate and the bearing plate are fully installed, the tops of the movable plate and the filter plate are provided with docking notches, and the bottoms of the bearing plate, the movable plate and the filter plate are provided with plug-in parts, both sides of the bearing plate, the movable plate and the filter plate extend outward and are fixed with connecting side plates, and the connecting side plates are provided with assembly holes, and the bearing plate, the movable plate and the filter plate are fixed to the side walls of the cabinet by bolts, and the clamping plate can better clamp and fix the filter plate, and the shape of the docking notch corresponds to the shape of the plug-in part, and both sides of the movable plate, the filter plate and the bearing plate can completely cover the outside of the rear opening, and in order to further improve the sealing performance, sealing strips can be embedded on the side walls of the movable plate, the filter plate and the bearing plate.

[0009] Preferably, in order to improve the rotation stability of the rotating shaft block, a vertical plate body is fixed on the power motor, a relay gear is rotatably installed on the side wall of the vertical plate body, a main gear is fixed on the output shaft of the power motor, the relay gear and the main gear are dynamically meshed with each other, a cleaning shaft is rotatably installed on the upper side wall of the vertical plate body, and the cleaning shaft and the relay gear are dynamically connected via a relay belt.

[0010] Preferably, in order to clean the filter layer while introducing external ambient air, a through hole located in the center is opened at one end of the rotating shaft block, the cleaning shaft passes through the through hole, the support frame and the filter layer, a cleaning strip is fixed to one end of the cleaning shaft, the filter layer is located between the cleaning strip and the support frame, the side wall of the cleaning strip is close to the filter layer, and bristles are provided on the side wall of the cleaning strip, a filling layer is fixed on the outer wall of the cleaning strip located at the through hole, and in order to avoid deformation of the filter layer during long-term brushing, a support patch can be provided on one side of the filter layer for auxiliary support.

[0011] Preferably, the protective door is rotatably mounted on the cabinet body via a U-shaped hinge, an inner convex portion is provided on one side of the protective door close to the cabinet body, one end of the U-shaped hinge is fixed on the inner convex portion, and the other end is rotatably mounted on the inner wall of the cabinet body, the sealing frame is arranged around the front opening, the sealing frame includes a support plate located in the cabinet body, a filling frame is fixed on the inner wall of the front opening, a sealing portion extending between the filling frame and the inner convex portion is fixed on the side wall of the support plate, the sealing portion is made of rubber, and the U-shaped hinge can avoid blocking the movement of the sealing frame, and at the same time can maintain a regular appearance when the protective door is closed.

[0012] Preferably, in order to further improve the sealing performance of the protective door, an elastic mechanism is provided between the support plate and the filling frame, the elastic mechanism includes a column fixed on the side wall of the support plate, a support spring is fixed on the side wall of the support plate, a first groove is provided on the filling frame, the support spring is located at the periphery of the column, one end of the support spring is fixed to the bottom of the first groove, a second groove is provided at the bottom of the first groove corresponding to the column, and one end of the column extends into the second groove.

[0013] Preferably, in order to facilitate the auxiliary compression of the filling frame and thus achieve a sealing effect, the trigger mechanism includes a trigger rod that is slidably clamped on the side wall of the protective door through a buckle plate, and a clamping block is provided at one end of the trigger rod, and an oblique notch is provided on the clamping block, and the oblique notch is located on one side of the filling frame.

[0014] Preferably, in order to facilitate manual operation by personnel, an operating mechanism is fixed on the inner wall of the protective door, the operating mechanism includes a driving gear disk rotatably mounted on the protective door, an external disk is fixed on the rotating shaft of the driving gear disk, an operating handle is fixed on the side wall of the external disk, the external disk is located outside the protective door, and a shielding shell fixed to the protective door is provided outside the external disk, and a side opening for allowing the operating handle to rotate is provided on the side wall of the shielding shell, a composite gear meshing with the driving gear disk is rotatably mounted on the inner wall of the protective door, an auxiliary gear is fixed on the side of the composite gear close to the protective door, a rack portion is provided on the side wall of the trigger rod close to the auxiliary gear, the auxiliary gear and the rack portion are dynamically meshed with each other, a hollow hole is opened on the end face of the shielding shell, a position mark is provided on the external disk corresponding to the hollow hole, and the hollow hole is set corresponding to the trajectory of the operating handle.

[0015] Preferably, an external rack portion is provided on the side wall of the trigger rod away from the protective door, an extension shaft is rotatably mounted on the protective door through a support plate, a sub-gear meshing with the external rack portion is fixed on the extension shaft, and at least six trigger mechanisms are provided on the side wall of the protective door, so that the sealing frame can be more comprehensively compressed, and the sub-gear is correspondingly arranged on one side of the trigger mechanism.

[0016] The beneficial effects of the present invention are as follows: the power cabinet can provide a good sealing environment for internal electrical components. When the sealing effect of the protective door is poor after closing, the sealing frame can be squeezed between the cabinet and the protective door through the trigger mechanism to achieve a sealing effect. At the same time, the power cabinet can avoid heat accumulation in the cabinet. While having a good sealing and protective effect, it can also provide dust and heat dissipation in the cabinet. When introducing external air, the cleaning strips can clean the filter layer to avoid dust and impurities clogging the filter layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a structural schematic diagram of the other side of the present invention.

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the cabinet of the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the heat dissipation component of the present invention.

[0021] Figure 5 It is a schematic cross-sectional structural diagram of the heat dissipation assembly of the present invention.

[0022] Figure 6 This is a schematic diagram of the cleaning shaft structure of the present invention.

[0023] Figure 7 This is a schematic diagram of the installation position of the trigger mechanism of the present invention.

[0024] Figure 8 It is a schematic diagram of the cross-sectional structure of the protective door of the present invention.

[0025] Fig. 9 for Figure 8 Schematic diagram of the enlarged structure at point A in the middle.

[0026] Fig.10 It is a schematic diagram of the operating mechanism structure of the present invention.

[0027] Fig.11 It is a schematic diagram of the elastic mechanism structure of the present invention.

[0028] Fig.12 It is a schematic diagram of the structure of the U-shaped hinge part of the present invention.

[0029] Description of the accompanying drawings: In the figure: 1, cabinet; 101, clamping plate; 102, filling frame; 2, protective door; 201, observation window; 3, filter plate; 4, movable plate; 5, heat dissipation component; 501, outer ring body; 502, support frame; 503, filter layer; 504, rotating shaft block; 505, heat dissipation fan blade; 506, power motor; 507, synchronous belt; 508, relay gear; 509, main gear; 5010, cleaning shaft; 5011, relay belt; 5012, cleaning Cleaning strip plate; 5013, bearing plate; 6, sealing frame; 601, support plate; 602, sealing part; 7, trigger mechanism; 701, trigger rod; 702, clamping block; 8, elastic mechanism; 801, column; 802, supporting spring; 9, operating mechanism; 901, driving gear plate; 902, external plate; 903, operating handle; 904, shielding shell; 905, compound gear; 906, auxiliary gear; 907, extension shaft; 908, sub-gear; 10, U-shaped hinge part. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings: like Figure 1-Figure 12 As shown, the present embodiment provides a dustproof power cabinet, including a cabinet body 1, which is the main supporting and protective component. A protective cover is fixed on the top of the cabinet body 1, and the outer edge of the protective cover extends to all sides, and a baffle extending downward is fixed on the bottom edge of the protective cover. Usually, an inlet and outlet are opened at the top or bottom of the cabinet body 1, and sealing treatment is required during setting. A front opening is opened on the side wall of the cabinet body 1, and a protective door 2 is rotatably installed in the front opening. An observation window 201 is provided on the upper part of the protective door 2. The observation window 201 preferably uses a transparent glass plate. A control box can be set again inside the cabinet body 1, and the observation window 201 can facilitate personnel to observe the operation of the internal electrical components of the cabinet body 1. A rear opening is opened on the side wall of the cabinet body 1 opposite to the front opening. The traditional power cabinet is only provided with an opening at the front panel, and the operation is relatively difficult when the cables are installed. A clamping plate 101 is fixed on the side wall of the cabinet body 1 below the rear opening. The clamping plate 101 One end of the cabinet 1 extends obliquely upward, a filter plate 3 is clamped between the clamping plate 101 and the side wall of the cabinet 1, the filter plate 3 is provided with a through opening, a dustproof layer is provided in the through opening, a movable plate 4 is provided above the filter plate 3, the filter plate 3 and the movable plate 4 can be disassembled independently, a heat dissipation component 5 is provided above the movable plate 4, the heat dissipation component 5 preferably introduces air in the external environment into the cabinet 1, and then discharges it through the filter plate 3 located below, a water pump is also provided at the bottom of the cabinet 1, the output end of the water pump extends to the outside of the cabinet 1 through a discharge pipe, and the input pipe of the water pump extends to the bottom of the cabinet 1, after the installation of the power cabinet is completed, the water pump needs to be powered separately, and a water level switch needs to be provided at the bottom of the cabinet 1 to control the start of the water pump, such as a commonly used float switch, a sealing frame 6 is provided on the inner wall of the cabinet 1 corresponding to the front opening, a trigger mechanism 7 is provided in the protective door 2, and the trigger mechanism 7 is used to assist the sealing frame 6 to seal the gap around the protective door 2.

[0031] The heat dissipation component 5 includes a bearing plate 5013, a heat dissipation port is provided on the side wall of the bearing plate 5013, an outer ring body 501 is fixed outside the heat dissipation port, a support frame 502 and a filter layer 503 are fixed between the inner walls of the outer ring body 501, a rotating shaft block 504 is rotatably clamped on the side wall of the support frame 502, a heat dissipation fan blade 505 is fixed on the outer wall of the rotating shaft block 504, a force wheel is fixed at one end of the rotating shaft block 504, a power motor 506 is installed on the side wall of the bearing plate 5013 through a fixed plate, a power wheel is fixed on the output shaft of the power motor 506, and the power wheel and the force wheel are connected by power through a synchronous belt 507, so that it is convenient to introduce external cooling air into the cabinet 1, and the tops of the movable plate 4 and the filter plate 3 are provided with docking The bottom of the supporting plate 5013, the movable plate 4 and the filter plate 3 are all provided with a plug-in portion, and both sides of the supporting plate 5013, the movable plate 4 and the filter plate 3 extend outward and are fixed with connecting side plates, and the connecting side plates are provided with assembly holes, and the supporting plate 5013, the movable plate 4 and the filter plate 3 are all fixed to the side wall of the cabinet 1 by bolts, and the clamping plate 101 can better clamp and fix the filter plate 3, and the shape of the docking notch corresponds to the shape of the plug-in portion. The movable plate 4, the filter plate 3 and the two sides of the supporting plate 5013 can be completely covered outside the rear opening, and in order to further improve the sealing performance, a sealing strip can be embedded on the side walls of the movable plate 4, the filter plate 3 and the supporting plate 5013, so that the movable plate 4, the filter plate 3 and the supporting plate 5013 can be completely installed. 13 After the cabinet 1 can still maintain a good seal, a vertical plate body is fixed on the power motor 506, and a relay gear 508 is rotatably installed on the side wall of the vertical plate body. A main gear 509 is fixed on the output shaft of the power motor 506, and the relay gear 508 and the main gear 509 are power-engaged. A cleaning shaft 5010 is rotatably installed on the upper side wall of the vertical plate body. The cleaning shaft 5010 and the relay gear 508 are power-connected through a relay belt 5011, which can improve the rotation stability of the rotating shaft block 504. A through hole located at the center is opened at one end of the rotating shaft block 504. The cleaning shaft 5010 passes through the through hole, the support frame 502 and the filter layer 503. A cleaning strip 5012 is fixed to one end of the cleaning shaft 5010. The filter layer 503 is located between the cleaning strip 5012 and the support frame 502. The side wall of the cleaning strip 5012 is close to the filter layer 503, and bristles are arranged on the side wall of the cleaning strip 5012. A filling layer is fixed on the outer wall of the cleaning strip 5012 at the through hole. In order to prevent the filter layer 503 from deforming during long-term brushing, a supporting patch can be arranged on one side of the filter layer 503 for auxiliary support. In this way, the filter layer 503 can be cleaned while introducing external ambient air. When in use, the power motor 506 is started to drive the power wheel to rotate, and then the force wheel is driven to rotate through the synchronous belt 507. The force wheel rotates together with the rotating shaft block 504, so that the heat dissipation fan blades 505 are used to drive the airflow.Thus, air is sucked into the cabinet 1 through the filter layer 503, and dust can be blocked on one side by the filter layer 503, and the cleaning strip 5012 can rotate and clean on one side of the filter layer 503, and the power source is the power motor 506. In order to prevent the cleaning strip 5012 from rotating too fast, the main gear 509 can be used to drive the relay gear 508 to rotate, and then the cleaning shaft 5010 can be driven to rotate through the relay belt 5011. At the same time, the cleaning shaft 5010 can assist in supporting the rotating shaft block 504 to jointly maintain the stability of the components. External air is introduced into the upper part of the cabinet 1, and then passes through the cabinet 1 from top to bottom, and then blown out through the filter plate 3. ,

[0032] The protective door 2 is rotatably mounted on the cabinet 1 through a U-shaped hinge 10. An inner convex portion is provided on one side of the protective door 2 close to the inside of the cabinet 1. One end of the U-shaped hinge 10 is fixed on the inner convex portion, and the other end is rotatably mounted on the inner wall of the cabinet 1. The sealing frame 6 is arranged around the front opening. The sealing frame 6 includes a support plate 601 located in the cabinet 1. A filling frame 102 is fixed on the inner wall of the front opening. A sealing portion 602 extending between the filling frame 102 and the inner convex portion is fixed on the side wall of the support plate 601. The sealing portion 602 is made of rubber. The U-shaped hinge 10 can avoid blocking the movement of the sealing frame 6. At the same time, when the protective door 2 is closed, the appearance can be kept neat. An elastic mechanism 8 is provided between the support plate 601 and the filling frame 102. The elastic mechanism 8 includes a column 801 fixed on the side wall of the support plate 601, and a support spring 802 is fixed on the side wall of the support plate 601. A first groove is provided on the filling frame 102, and the support spring 802 is located at the periphery of the column 801. One end of the support spring 802 is fixed to the bottom of the first groove, and a second groove is provided at the bottom of the first groove corresponding to the column 801. One end of the column 801 extends into the second groove, so that the sealing performance of the protective door 2 can be further improved.

[0033] The trigger mechanism 7 includes a trigger rod 701 that is slidably connected to the side wall of the protective door 2 through a buckle plate, and a pressing block 702 is provided at one end of the trigger rod 701. The pressing block 702 is provided with an oblique notch, and the oblique notch is located on one side of the filling frame 102, so that it is convenient to assist in pressing the filling frame 102 and thus achieve a sealing effect. An operating mechanism 9 is fixed on the inner wall of the protective door 2, and the operating mechanism 9 includes a driving toothed disk 901 rotatably installed on the protective door 2, an external disk 902 is fixed on the rotating shaft of the driving toothed disk 901, and an operating handle 9 is fixed on the side wall of the external disk 902 03, the outer disk 902 is located outside the protective door 2, and a shielding shell 904 fixed to the protective door 2 is provided outside the outer disk 902, and a side opening is provided on the side wall of the shielding shell 904 to allow the operating handle 903 to rotate, and a composite gear 905 meshing with the driving gear disk 901 is rotatably installed on the inner wall of the protective door 2, and an auxiliary gear 906 is fixed on the side of the composite gear 905 close to the protective door 2, and a rack portion is provided on the side wall of the trigger rod 701 close to the auxiliary gear 906, and the auxiliary gear 906 and the rack portion are dynamically meshed. A hollow hole is opened, and a position mark is provided on the outer disk 902 corresponding to the hollow hole. The hollow hole is set corresponding to the trajectory of the operating handle 903, which can facilitate manual operation by personnel. An outer rack portion is provided on the side wall of the trigger rod 701 away from the protective door 2. An extension shaft rod 907 is rotatably installed on the protective door 2 through the support plate 601. A sub-gear 908 meshing with the outer rack portion is fixed on the extension shaft rod 907. At least six trigger mechanisms 7 are provided on the side wall of the protective door 2, which can more comprehensively compress the sealing frame 6, and the sub-gear 908 Correspondingly, it is arranged on one side of the trigger mechanism 7. After closing the protective door 2, firstly, the operating handle 903 is rotated to drive the driving gear disc 901 to rotate. The driving gear disc 901 drives the composite gear 905 and the auxiliary gear 906 to rotate. Then, the trigger rod 701 on the trigger mechanism 7 is driven to move, so that the clamping block 702 is close to the support plate 601. When the trigger rod 701 moves together, the support plate 601 can be pressed to be close to the protective door 2, so that the sealing part 602 is filled between the filling frame 102 and the protective door 2. At this time, it can further play a dustproof sealing effect.

[0034] During use, the power cabinet can provide a good sealing environment for the internal electrical components. The sealing effect of the protective door 2 is poor after closing. At this time, the sealing frame 6 can be squeezed between the cabinet 1 and the protective door 2 through the trigger mechanism 7, thereby playing a sealing role. At the same time, the power cabinet can avoid heat accumulation in the cabinet 1, and can provide dust and heat dissipation in the cabinet 1 while having a good sealing and protection effect.

[0035] After closing the protective door 2, first rotate the operating handle 903 to drive the driving gear disc 901 to rotate, and the driving gear disc 901 drives the composite gear 905 and the auxiliary gear 906 to rotate, and then drives the trigger rod 701 on the trigger mechanism 7 to move, so that the clamping block 702 is close to the support plate 601. When the trigger rod 701 moves together, the support plate 601 can be pressed to approach the protective door 2, and then the sealing part 602 is filled between the filling frame 102 and the protective door 2, which can further play a dustproof sealing effect.

[0036] When heat dissipation is required, the power motor 506 is started to drive the power wheel to rotate, and then the force wheel is driven to rotate through the synchronous belt 507. The force wheel rotates together with the rotating shaft block 504, so that the heat dissipation fan blades 505 are used to drive the air flow, so that the air passes through the filter layer 503 and is sucked into the cabinet 1. The dust can be blocked on one side by the filter layer 503, and the cleaning strip 5012 can rotate and clean on one side of the filter layer 503. The power source is the power motor 506. In order to prevent the cleaning strip 5012 from rotating too fast, the main gear 509 can be used to drive the relay gear 508 to rotate, and then the cleaning shaft 5010 can be driven to rotate through the relay belt 5011. At the same time, the cleaning shaft 5010 can assist in supporting the rotating shaft block 504 to jointly maintain the stability of the components. The external air is introduced into the upper part of the cabinet 1, then passes through the cabinet 1 from top to bottom, and is then blown out through the filter plate 3.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention shall be defined by the attached claims and their equivalents.

Claims

1. A dustproof power cabinet, comprising a cabinet body (1), a side wall of the cabinet body (1) being provided with a front opening, a protective door (2) being rotatably mounted in the front opening, an upper portion of the protective door (2) being provided with an observation window (201), characterized in that: A rear opening is provided on the side wall of the cabinet (1) opposite to the front opening, a clamping plate (101) is fixed on the side wall of the cabinet (1) below the rear opening, one end of the clamping plate (101) extends obliquely upward, a filter plate (3) is clamped between the clamping plate (101) and the side wall of the cabinet (1), a through opening is provided on the filter plate (3), a dustproof layer is provided in the through opening, a movable plate (4) is provided above the filter plate (3), a heat dissipation component (5) is provided above the movable plate (4), a sealing frame (6) is provided on the inner wall of the cabinet (1) corresponding to the front opening, and a trigger mechanism (7) is provided in the protective door (2).

2. The dustproof power cabinet according to claim 1, characterized in that: The heat dissipation component (5) comprises a bearing plate (5013), a heat dissipation port is formed on the side wall of the bearing plate (5013), an outer ring body (501) is fixed outside the heat dissipation port, a support frame (502) and a filter layer (503) are fixed between the inner walls of the outer ring body (501), a rotating shaft block (504) is rotatably clamped on the side wall of the support frame (502), a heat dissipation fan blade (505) is fixed on the outer wall of the rotating shaft block (504), a force-bearing wheel is fixed at one end of the rotating shaft block (504), a power motor (506) is mounted on the side wall of the bearing plate (5013) via a fixing plate, a power wheel is fixed on the output shaft of the power motor (506), and the power wheel and the force-bearing wheel are power-connected via a synchronous belt (507).

3. The dustproof power cabinet according to claim 2, characterized in that: The tops of the movable plate (4) and the filter plate (3) are provided with butt-jointing notches, the bottoms of the bearing plate (5013), the movable plate (4) and the filter plate (3) are provided with plug-in portions, both sides of the bearing plate (5013), the movable plate (4) and the filter plate (3) extend outwards and are all fixed with connecting side plates, the connecting side plates are provided with assembly holes, and the bearing plate (5013), the movable plate (4) and the filter plate (3) are all fixed to the side wall of the cabinet body (1) by means of bolts.

4. The dustproof power cabinet according to claim 2, characterized in that: A vertical plate body is fixed on the power motor (506), a relay gear (508) is rotatably mounted on the side wall of the vertical plate body, a main gear (509) is fixed on the output shaft of the power motor (506), the relay gear (508) and the main gear (509) are in power meshing engagement, a cleaning shaft (5010) is rotatably mounted on the upper side wall of the vertical plate body, and the cleaning shaft (5010) and the relay gear (508) are power-connected via a relay belt (5011).

5. The dustproof power cabinet according to claim 4, characterized in that: A through hole located at a central position is formed at one end of the rotating shaft block (504); the cleaning shaft (5010) passes through the through hole, the support frame (502) and the filter layer (503); a cleaning strip (5012) is fixed to one end of the cleaning shaft (5010); the filter layer (503) is located between the cleaning strip (5012) and the support frame (502); a side wall of the cleaning strip (5012) is close to the filter layer (503); bristles are provided on the side wall of the cleaning strip (5012); and a filling layer is fixed to the outer wall of the cleaning strip (5012) located at the through hole.

6. The dustproof power cabinet according to claim 1, characterized in that: The protective door (2) is rotatably mounted on the cabinet (1) via a U-shaped hinge (10); an inner convex portion is provided on a side of the protective door (2) close to the inside of the cabinet (1); one end of the U-shaped hinge (10) is fixed to the inner convex portion, and the other end is rotatably mounted on the inner wall of the cabinet (1); the sealing frame (6) is arranged around the front opening; the sealing frame (6) comprises a support plate (601) located in the cabinet (1); a filling frame (102) is fixed on the inner wall of the front opening; a sealing portion (602) extending between the filling frame (102) and the inner convex portion is fixed on the side wall of the support plate (601); the sealing portion (602) is made of rubber.

7. The dustproof power cabinet according to claim 6, characterized in that: An elastic mechanism (8) is provided between the support plate (601) and the filling frame (102), the elastic mechanism (8) comprising a column (801) fixed on the side wall of the support plate (601), a support spring (802) fixed on the side wall of the support plate (601), a first groove is provided on the filling frame (102), the support spring (802) is located at the periphery of the column (801), one end of the support spring (802) is fixed to the bottom of the first groove, a second groove is provided at the bottom of the first groove corresponding to the column (801), and one end of the column (801) extends into the second groove.

8. The dustproof power cabinet according to claim 7, characterized in that: The trigger mechanism (7) comprises a trigger rod (701) slidably clamped on the side wall of the protective door (2) through a buckle plate, a pressing block (702) being provided at one end of the trigger rod (701), an oblique notch being provided on the pressing block (702), and the oblique notch being located on one side of the filling frame (102).

9. The dustproof power cabinet according to claim 8, characterized in that: An operating mechanism (9) is fixed on the inner wall of the protective door (2), the operating mechanism (9) comprising a driving toothed disc (901) rotatably mounted on the protective door (2), an external disc (902) being fixed on the rotating shaft of the driving toothed disc (901), an operating handle (903) being fixed on the side wall of the external disc (902), the external disc (902) being located outside the protective door (2), and a shielding shell (904) fixed to the protective door (2) being provided outside the external disc (902), The side wall of the shielding shell (904) is provided with a side opening for allowing the operating handle (903) to rotate; a composite gear (905) meshing with the driving gear disc (901) is rotatably mounted on the inner wall of the protective door (2); an auxiliary gear (906) is fixed to a side of the composite gear (905) close to the protective door (2); a rack portion is provided on the side wall of the trigger rod (701) close to the auxiliary gear (906); the auxiliary gear (906) and the rack portion are in dynamic meshing engagement with each other.

10. The dustproof power cabinet according to claim 9, characterized in that: An external rack portion is provided on a side wall of the trigger rod (701) away from the protective door (2); an extension shaft (907) is rotatably mounted on the protective door (2) via a support plate (601); a sub-gear (908) meshing with the external rack portion is fixed on the extension shaft (907).

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