Self-cleaning type constant-temperature power distribution cabinet main body

Abstract

The invention discloses a self-cleaning type constant-temperature power distribution cabinet main body, and relates to the technical field of power distribution cabinets, the self-cleaning type constant-temperature power distribution cabinet main body comprises a cabinet door body, and the cabinet door body comprises a door plate, a handle, an end tooth plate, a back tooth profile, a connecting rod, a strip brush and a sliding block. In the using process, the door plate is in linkage fit with the linkage opening and closing assembly and the linkage cleaning assembly in the process of sliding and unfolding the door plate towards the two sides, so that the movable insertion plate can be radially inserted into the air outlet pipeline in the maintenance operation process; the wind direction is forcibly changed, so that high-speed airflow is vertically output downwards from the opening of the cabinet body through the air curtain machine to form an air curtain, external dust is prevented from entering the cabinet body in the maintenance process, and the grating pedal can be driven to slide and move forwards at the bottom of the cavity; when the grid pedal is used as a pedal to assist in maintenance operation of electrical elements in a higher position in the cabinet body, the grid pedal moves forwards to drive the scraping strip attached to the bottom of the grid pedal to push out dust accumulated at the bottom of the cavity.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution cabinets, and specifically to a self-cleaning constant temperature distribution cabinet body. Background Art

[0002] A distribution cabinet is a general term for a motor control center, which is used in occasions where the load is relatively dispersed and the number of circuits is small. It distributes the electric energy of a certain circuit of the upper-level power distribution equipment to the nearby load. After long-term use of the distribution cabinet, a large amount of dust will accumulate on the electronic components inside the distribution cabinet, affecting the heat dissipation effect of the electronic components.

[0003] Most existing distribution cabinets use a cooling fan and a filter screen to achieve ventilation and heat exchange inside the distribution cabinet. Through the setting of the filter screen, the fine dust in the air cannot be completely filtered. During the heat dissipation process, the fine dust particles will enter the cabinet body along with the air flow. At the same time, when installing and maintaining the electronic components, the cabinet door needs to be opened, and the dust in the air will enter the cabinet body accordingly. Therefore, in the actual use process, even with the existence of the filter screen, there will still be a lot of dust in the cabinet, posing a safety hazard to the heat dissipation and use of the electronic components. At the same time, after the filter screen has been used for a long time, there are many blockages on the surface of the filter screen, making the ventilation of the filter screen cylinder worse, thus affecting the normal heat dissipation inside the distribution cabinet, and the filter screen needs to be cleaned frequently.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structural deficiencies, and a self-cleaning constant temperature distribution cabinet body is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a self-cleaning constant temperature distribution cabinet body to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A self-cleaning constant temperature distribution cabinet body includes a cabinet door body, and the cabinet door body includes a door panel, a handle, an end tooth plate, a back tooth shape, a connecting rod, a strip brush and a slider. A handle is fixedly installed on the front surface of the door panel, and an end tooth plate is integrally fixed at the top of the door panel, and the end tooth plates are arranged at different heights on the inner sides of the opposite surfaces of the two door panels. A back tooth shape is opened on the inner side of the back surface of the door panel, and a connecting rod is fixedly connected to the inner side of the bottom end of the door panel. A strip brush is attached to the end plane of the connecting rod, and a slider is fixedly installed at the end of the connecting rod.

[0007] Further, the two door panels slide on both sides of the cabinet opening, and a chamber is opened inside the cabinet, and electrical components are installed in the chamber through a cabinet frame.

[0008] Further, an air inlet grille is provided at the bottom end of the front of the cabinet body, and the grille bars in the air inlet grille are closely attached to the strip brushes. A guide bar is horizontally arranged below the air inlet grille, and the guide bar is in sliding fit with the slider.

[0009] Further, an air outlet duct is provided at the top end of the cabinet body, and an exhaust fan is arranged inside the air outlet duct. A bypass pipe is communicated with the side of the air outlet duct, and the end of the bypass pipe is connected to an air curtain machine. The air curtain machine is fixedly installed at the front end of the top of the chamber.

[0010] Further, a linkage opening and closing assembly is provided at the top end of the front of the cabinet body. The linkage opening and closing assembly includes a face mask and a central gear. The face mask is fixedly bolted to the top end of the front of the cabinet body, and a central gear is rotatably installed in the middle of the inside of the face mask. The central gear is meshed and driven with the end tooth plates staggered on the inner sides of the top ends of the two side door panels respectively.

[0011] Further, the linkage opening and closing assembly further includes a screw rod, a movable plug board and a guide sleeve. The tail of the central gear is coaxially connected with the screw rod, and the screw rod is matched with the thread groove opened at the end of the movable plug board. The movable plug board is radially inserted above the air outlet duct, and the movable plug board is in sliding fit with the middle guide sleeve.

[0012] Further, guide seats are fixedly bolted at both ends of the opening of the chamber, and an embedding groove embedded in the side wall of the cabinet body is opened on the outer side of the guide seat. A bearing seat is hermetically fixed in the middle of the embedding groove, and a double-headed toothed rod is rotatably installed in the middle of the bearing seat. The bottom gear of the double-headed toothed rod is meshed and driven with the back tooth shapes arranged on the backs of the two side door panels.

[0013] Further, a linkage cleaning assembly is provided at the bottom end of the chamber. The linkage cleaning assembly includes a grille pedal and a scraping strip. The surface of the grille pedal is densely covered with through holes, and a scraping strip is arranged at the rear end of the bottom of the grille pedal. The scraping strip is in fit with the bottom end of the chamber.

[0014] Further, the linkage cleaning assembly further includes a rotating pin and a support leg. Rotating pins are fixedly installed on both sides of the front end of the grille pedal, and support legs are rotatably folded inside the rotating pins.

[0015] Further, the linkage cleaning assembly further includes a connecting rib and a driven rack. Connecting ribs are fixedly installed on both sides of the rear end of the grille pedal, and the grille pedal is fixedly connected to the two driven racks through the connecting ribs. The two driven racks are in sliding fit with the corresponding guide seats, and the driven racks are meshed and driven with the top gears of the double-headed toothed rod.

[0016] The present invention provides a self-cleaning type constant temperature power distribution cabinet body, which has the following beneficial effects; 1. During the use of the present invention, when performing maintenance work, the user holds the handle and pushes the door panel sideways. The end tooth plate at the top of the door panel on one side meshes with the central gear in the middle of the mask, and transmits to the end tooth plates staggered at the top of the door panel on the other side, so that the door panel can be synchronously located on the front side of the cabinet and slide and unfold to both sides, which is convenient for maintenance personnel to access the electrical components in the chamber for maintenance work. During this process, the strip brushes attached to the end faces of the connecting rods at the bottom of the door panels on both sides physically scrub the air inlet grilles on both sides of the bottom of the cabinet, clear the dust and impurities blocking the surface of the air inlet grilles, and maintain the constant temperature and heat dissipation effect by ensuring the ventilation efficiency at the air inlet grilles.

[0017] 2. During the use of the present invention, when the door panels slide and expand synchronously to both sides, on the one hand, the central gear driven by the meshing transmission of the toothed plates at the top ends of the door panels on both sides drives the coaxial screw at the tail to rotate, and then under the cooperation of the screw and the threaded groove opened at the end of the movable plug plate, the movable plug plate is driven to be radially inserted into the air outlet duct, thereby sealing the air originally discharged upward from the air outlet duct, so that the air is directly transferred from the bypass pipe connected to the side of the air outlet duct to the air curtain machine installed at the front end of the chamber top, and the high-speed airflow output vertically downward by the air curtain machine at the opening of the cabinet forms an air curtain, which effectively prevents external dust from entering the interior of the chamber during maintenance, thereby reducing dust accumulation inside the cabinet and avoiding safety hazards to electrical components.

[0018] 3. During the use of the present invention, on the other hand, in order to solve the problem that fine dust will enter the interior of the cabinet through the air inlet grille and accumulate at the bottom of the chamber during long-term use, the door panel of the present application slides and unfolds synchronously to both sides, and the back teeth arranged on the back of the door panel mesh with the bottom gear of the double-headed gear rod for transmission, and further mesh with the driven rack in the guide seat through the top gear of the double-headed gear rod, thereby driving the grille pedal laid on the bottom of the chamber to slide forward. The user can stand on the grille pedal to perform maintenance work on the electrical components in a higher position in the cabinet by unfolding the folded feet at the front end of the grille pedal, and the present application provides a scraper at the bottom of the rear end of the grille pedal to scrape the accumulated dust away during the forward movement of the grille pedal. In order to push the dust at the bottom of the chamber out of the cabinet to achieve self-cleaning, the present application links the process of sliding and expanding the door panels to both sides with the linkage opening and closing components and the linkage cleaning components. Not only can the radial insertion of the movable plug plate in the air outlet duct be achieved during maintenance operations, the wind direction can be forced to change so that the high-speed airflow is output vertically downward from the cabinet opening through the air curtain machine to form an air curtain, thereby isolating external dust from entering the cabinet during maintenance. The grille pedal at the bottom of the chamber can also be driven to slide forward. While being used as a pedal to assist in maintenance operations on electrical components at a higher position in the cabinet, the forward movement of the grille pedal also drives the scraper strip attached to its bottom to push out the dust accumulated at the bottom of the chamber, thereby achieving self-cleaning of the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the overall structure of the device of the present invention; Figure 2 Schematic cross-sectional structure diagram of the device of the present invention; Figure 3 For the present invention Figure 2 Enlarged structure diagram at position A in the present invention; Figure 4 For the present invention Figure 2 Enlarged structure diagram at position B in the present invention; Figure 5 Front view structure diagram of the cabinet door body of the present invention; Figure 6 Rear view structure diagram of the door panel of the present invention; Figure 7 Schematic structure diagram of the linkage cleaning assembly of the present invention.

[0020] In the figure: 1. Cabinet door body; 101. Door panel; 102. Handle; 103. End tooth plate; 104. Back tooth shape; 105. Connecting rod; 106. Strip brush; 107. Slide block; 2. Cabinet body; 3. Chamber; 4. Air inlet grille; 5. Guide bar; 6. Air outlet duct; 7. Exhaust fan; 8. Bypass pipe; 9. Air curtain machine; 10. Linkage opening and closing assembly; 1001. Mask; 1002. Central gear; 1003. Screw rod; 1004. Movable plug board; 1005. Guide sleeve; 11. Guide seat; 12. Embedded groove; 13. Bearing seat; 14. Double-headed toothed rod; 15. Linkage cleaning assembly; 1501. Grille pedal; 1502. Scraper strip; 1503. Rotating pin; 1504. Support foot; 1505. Connecting rib; 1506. Driven rack. Specific embodiments

[0021] The following further describes in detail the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention Please refer to Figures 1 to 6, the present invention provides a technical solution: a self-cleaning constant temperature power distribution cabinet main body, including a cabinet door body 1. The cabinet door body 1 includes a door panel 101, a handle 102, an end tooth plate 103, a back tooth shape 104, a connecting rod 105, a strip brush 106 and a slider 107. A handle 102 is fixedly installed on the front surface of the door panel 101, and an end tooth plate 103 is integrally fixed at the top end of the door panel 101. And the end tooth plates 103 are arranged in a staggered manner on the inner sides of the opposite surfaces of the two side door panels 101. A back tooth shape 104 is provided on the inner side of the back surface of the door panel 101, and a connecting rod 105 is fixedly connected to the inner side of the bottom end of the door panel 101. A strip brush 106 is attached to the end plane of the connecting rod 105, and a slider 107 is fixedly installed at the end of the connecting rod 105. The two side door panels 101 slide on both sides of the opening of the cabinet body 2, and a chamber 3 is provided inside the cabinet body 2. And electrical components are installed in the chamber 3 through a cabinet frame. A ventilation grille 4 is provided at the bottom end of the front surface of the cabinet body 2, and the grille bars in the ventilation grille 4 are in close contact with the strip brush 106. A guide bar 5 is horizontally arranged below the ventilation grille 4, and the guide bar 5 is in sliding fit with the slider 107; The specific operation is as follows. When performing maintenance work, the user holds the handle 102 and pushes the door panel 101 to the side. The end tooth plate 103 at the top end of one side door panel 101 is transmitted to the end tooth plate 103 arranged in a staggered manner at the top end of the other side door panel 101 through the engagement with the central gear 1002 in the middle of the mask 1001, so that the door panel 101 can slide and unfold to both sides on the front of the cabinet body 2 synchronously, facilitating the maintenance personnel to access the electrical components in the chamber 3 for maintenance work. During this process, the strip brush 106 attached to the end face of the connecting rod 105 at the bottom of the two side door panels 101 physically brushes the ventilation grilles 4 at both sides of the bottom end of the cabinet body 2, dredging the dust and impurities blocked on the surface of the ventilation grilles 4, and maintaining the constant temperature heat dissipation effect by ensuring the ventilation efficiency at the ventilation grilles 4; Please refer to Figures 2 to 3 , an air outlet duct 6 is provided at the top end of the cabinet body 2, and an exhaust fan 7 is arranged inside the air outlet duct 6. A bypass pipe 8 is connected to the side of the air outlet duct 6, and the end of the bypass pipe 8 is connected to an air curtain machine 9. The air curtain machine 9 is fixedly installed at the front end of the top of the chamber 3. A linkage opening and closing assembly 10 is provided at the top end of the front surface of the cabinet body 2. The linkage opening and closing assembly 10 includes a mask 1001 and a central gear 1002. The mask 1001 is bolted to the top end of the front surface of the cabinet body 2, and a central gear 1002 is rotatably installed in the middle of the mask 1001. And the central gear 1002 is in meshing transmission with the end tooth plates 103 arranged in a staggered manner on the inner sides of the top ends of the two side door panels 101 respectively. The linkage opening and closing assembly 10 further includes a screw rod 1003, a movable plug board 1004 and a guide sleeve 1005. A screw rod 1003 is coaxially connected to the tail of the central gear 1002, and the screw rod 1003 is matched with the thread groove opened at the end of the movable plug board 1004. The movable plug board 1004 is radially inserted above the air outlet duct 6, and the movable plug board 1004 is in sliding fit with the middle guide sleeve 1005; The specific operation is as follows. During the process of the door panel 101 sliding and unfolding synchronously to both sides, on the one hand, the central gear 1002 driven by the meshing transmission of the end tooth plates 103 at the top of the door panels 101 on both sides drives the coaxial screw 1003 at the tail to rotate. Then, under the cooperative action of the screw 1003 and the thread groove opened at the end of the movable plug plate 1004, the movable plug plate 1004 is driven to insert into the air outlet duct 6 radially, closing the air originally discharged upward by the air outlet duct 6, so that the air instead reaches the air curtain machine 9 installed at the front end of the top of the chamber 3 through the bypass pipe 8 connected to the side of the air outlet duct 6. The high-speed air flow vertically output by the air curtain machine 9 at the opening of the cabinet body 2 forms an air curtain, effectively preventing external dust from entering the interior of the chamber 3 during the maintenance process, thereby reducing the dust accumulation inside the cabinet body 2 and avoiding potential safety hazards to electrical components; Please refer to Figures 4 to 7 , guide seats 11 are bolted to both ends of the opening of the chamber 3, and grooves 12 embedded in the side wall of the cabinet body 2 are opened on the outer sides of the guide seats 11. A bearing seat 13 is hermetically fixed in the middle of the groove 12, and a double-headed toothed rod 14 is rotatably installed in the middle of the bearing seat 13. Moreover, the bottom gear of the double-headed toothed rod 14 meshes with the back tooth shapes 104 arranged on the backs of the door panels 101 on both sides. A linkage cleaning assembly 15 is arranged at the bottom end of the chamber 3. The linkage cleaning assembly 15 includes a grid pedal 1501 and a scraping strip 1502. The surface of the grid pedal 1501 is densely covered with through holes, and a scraping strip 1502 is arranged at the rear end of the bottom of the grid pedal 1501, and the scraping strip 1502 is in contact with the bottom end of the chamber 3. The linkage cleaning assembly 15 further includes a rotating pin 1503 and a support leg 1504. Rotating pins 1503 are fixedly installed on both sides of the front end of the grid pedal 1501, and support legs 1504 are rotatably folded inside the rotating pins 1503. The linkage cleaning assembly 15 further includes a connecting rib 1505 and a driven rack 1506. Connecting ribs 1505 are fixedly installed on both sides of the rear end of the grid pedal 1501, and the grid pedal 1501 is fixedly connected to the driven racks 1506 on both sides through the connecting ribs 1505. The driven racks 1506 on both sides are slidably matched with the corresponding guide seats 11, and the driven racks 1506 mesh with the top gears of the double-headed toothed rod 14; The specific operation is as follows. On the other hand, when the door panel 101 of the present application slides and unfolds synchronously to both sides, the back tooth shape 104 arranged on the back of the door panel 101 meshes and transmits with the bottom gear of the double-headed gear rod 14, and further meshes and transmits to the driven rack 1506 in the guide seat 11 through the top gear of the double-headed gear rod 14, thereby driving the grille pedal 1501 laid on the bottom of the chamber 3 to slide forward. The user can stand on the grille pedal 1501 to perform maintenance work on the electrical components in a higher position in the cabinet 2 by unfolding the folded support feet 1504 at the front end of the grille pedal 1501, and the present application provides a scraper strip 1502 at the bottom of the rear end of the grille pedal 1501, so that the dust accumulated at the bottom of the chamber 3 can be pushed out of the cabinet 2 during the forward movement of the grille pedal 1501. In order to realize self-cleaning, the present application realizes self-cleaning by linking the process of sliding and unfolding the door panel 101 to both sides with the linkage opening and closing component 10 and the linkage cleaning component 15. Not only can the radial insertion of the movable plug plate 1004 in the air outlet duct 6 be realized during the maintenance operation, and the wind direction can be forced to change so that the high-speed airflow is output vertically downward from the opening of the cabinet 2 through the air curtain machine 9 to form an air curtain, thereby isolating the external dust from entering the cabinet 2 during the maintenance process, but also the grille pedal 1501 located at the bottom of the chamber 3 can be driven to slide forward. While being used as a pedal to assist in the maintenance of electrical components at a higher position in the cabinet 2, the forward movement of the grille pedal 1501 also drives the scraper strip 1502 attached to its bottom to push out the dust accumulated at the bottom of the chamber 3, thereby realizing self-cleaning of the cabinet 2.

[0022] In summary, when using the self-cleaning constant temperature power distribution cabinet body, during daily use, taking advantage of the characteristic that hot air rises, the hot air in the chamber 3 is forced to be discharged through the exhaust fan 7 at the top end of the cabinet body 2 via the air outlet duct 6, creating a negative pressure environment inside the cabinet body 2, prompting the external cold air to naturally flow in from the air intake grilles 4 on both sides at the bottom end of the cabinet body 2, effectively avoiding the formation of eddy currents inside the cabinet body 2 and improving the heat dissipation efficiency. During maintenance operations, the user holds the handle 102 and pushes the door panel 101 sideways. The end tooth plate 103 at the top end of one side of the door panel 101 drives the end tooth plate 103 staggered at the top end of the other side of the door panel 101 through the meshing with the central gear 1002 in the middle of the face mask 1001, enabling the door panel 101 to slide and unfold synchronously to both sides in front of the cabinet body 2, facilitating the maintenance personnel to access the electrical components in the chamber 3 for maintenance operations. During this process, the strip brushes 106 attached to the end faces of the connecting rods 105 at the bottom of the two side door panels 101 physically brush the air intake grilles 4 on both sides at the bottom end of the cabinet body 2, dredging the dust and impurities blocked on the surface of the air intake grilles 4, and maintaining the constant temperature heat dissipation effect by ensuring the ventilation efficiency at the air intake grilles 4. During the process of the door panel 101 sliding and unfolding synchronously to both sides, on the one hand, driven by the central gear 1002 meshed and driven by the end tooth plates 103 at the top of the two side door panels 101, the coaxial screw 1003 at the tail rotates. Then, under the combined action of the screw 1003 and the threaded groove opened at the end of the movable plug board 1004, the movable plug board 1004 is driven to insert radially into the air outlet duct 6, closing the air originally discharged upward through the air outlet duct 6, so that the air instead reaches the air curtain machine 9 installed at the front end of the top of the chamber 3 through the bypass pipe 8 connected to the side of the air outlet duct 6. The high-speed air flow vertically output by the air curtain machine 9 at the opening of the cabinet body 2 forms an air curtain, effectively preventing external dust from entering the chamber 3 during the maintenance process, thereby reducing the dust accumulation inside the cabinet body 2 and avoiding potential safety hazards to the electrical components. On the other hand, to solve the problem that during long-term use, fine dust will enter the inside of the cabinet body 2 through the air intake grilles 4 and accumulate at the bottom of the chamber 3, during the process of the door panel 101 sliding and unfolding synchronously to both sides, the back tooth shape 104 provided on the back of the door panel 101 meshes and drives with the bottom gear of the double-headed tooth rod 14, and further drives the driven rack 1506 in the guide seat 11 through the top gear of the double-headed tooth rod 14, thereby driving the grille pedal 1501 laid at the bottom of the chamber 3 to slide forward. The user can unfold the support feet 1504 folded at the front end of the grille pedal 1501, facilitating standing on the grille pedal 1501 to maintain the electrical components at a higher position inside the cabinet body 2. And this application is provided with a scraping strip 1502 at the bottom of the rear end of the grille pedal 1501, and the dust accumulated at the bottom of the chamber 3 is pushed out of the cabinet body 2 during the forward movement of the grille pedal 1501 to achieve self-cleaning. This application realizes the linkage cooperation between the process of sliding and unfolding the door panel 101 to both sides and the linkage opening and closing assembly 10 and the linkage cleaning assembly 15.During the maintenance operation, not only can the movable shutter 1004 be radially inserted into the air outlet duct 6 to forcibly change the air direction, causing the high-speed air flow to vertically downward output from the opening of the cabinet 2 through the air curtain machine 9 to form an air curtain, isolating the outside dust from entering the interior of the cabinet 2 during maintenance, but also the grille pedal 1501 can be driven to slide forward at the bottom of the chamber 3. While being used as a pedal to assist in the maintenance operation of the electrical components at a relatively high position inside the cabinet 2, the forward movement of the grille pedal 1501 also drives the scraping strip 1502 attached to its bottom to push out the dust accumulated at the bottom of the chamber 3, realizing self-cleaning of the cabinet 2.

[0023] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described to better explain the principles of the invention and its practical application, and to enable those of ordinary skill in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A self-cleaning constant temperature power distribution cabinet body, comprising a cabinet door body (1), characterized in that: The cabinet door body (1) comprises a door panel (101), a handle (102), an end tooth plate (103), a back tooth shape (104), a connecting rod (105), a strip brush (106) and a slider (107); the handle (102) is fixedly mounted on the front of the door panel (101), and the end tooth plate (103) is integrally fixed to the top of the door panel (101), and the end tooth plates (103) are arranged in a staggered manner on the inner sides of the opposite surfaces of the door panels (101) on both sides; the back tooth shape (104) is provided on the inner side of the back of the door panel (101), and the connecting rod (105) is fixedly connected to the inner side of the bottom end of the door panel (101); the strip brush (106) is attached to the plane of the end of the connecting rod (105), and the slider (107) is fixedly mounted on the end of the connecting rod (105).

2. A self-cleaning constant temperature distribution cabinet body according to claim 1, characterized in that: The door panels (101) on both sides are located on both sides of the opening of the cabinet (2) and slide, and a chamber (3) is provided inside the cabinet (2), and electrical components are installed inside the chamber (3) through a cabinet frame.

3. A self-cleaning constant temperature distribution cabinet body according to claim 2, characterized in that: An air inlet grille (4) is provided at the bottom end of the front face of the cabinet (2), and the grille bars in the air inlet grille (4) are tightly fitted with the bar brush (106). A guide bar (5) is horizontally arranged below the air inlet grille (4), and the guide bar (5) is slidably matched with the slider (107).

4. A self-cleaning constant temperature distribution cabinet body according to claim 3, characterized in that: An air outlet duct (6) is provided at the top of the cabinet (2), and an exhaust fan (7) is built into the air outlet duct (6). A bypass duct (8) is connected to the side of the air outlet duct (6), and an air curtain machine (9) is connected to the end of the bypass duct (8). The air curtain machine (9) is fixedly installed at the front end of the top of the chamber (3).

5. A self-cleaning constant temperature distribution cabinet body according to claim 4, characterized in that: A linkage opening and closing assembly (10) is arranged at the top of the front face of the cabinet body (2), and the linkage opening and closing assembly (10) comprises a face mask (1001) and a central gear (1002). The face mask (1001) is bolted to the top of the front face of the cabinet body (2), and a central gear (1002) is rotatably mounted at the middle end of the face mask (1001), and the central gear (1002) is respectively meshed with end gear plates (103) staggeredly arranged on the inner sides of the top ends of the door panels (101) on both sides for transmission.

6. A self-cleaning constant temperature distribution cabinet body according to claim 5, characterized in that: The linkage opening and closing assembly (10) further comprises a screw (1003), a movable plug plate (1004) and a guide sleeve (1005); the tail of the central gear (1002) is coaxially connected with the screw (1003), and the screw (1003) cooperates with a thread groove provided at the end of the movable plug plate (1004); the movable plug plate (1004) is radially plugged above the air outlet duct (6), and the movable plug plate (1004) is slidably matched with the middle guide sleeve (1005).

7. A self-cleaning constant temperature distribution cabinet body according to claim 6, characterized in that: The two ends of the opening of the chamber (3) are fixed with guide seats (11) by bolts, and the outer side of the guide seat (11) is provided with an embedding groove (12) embedded in the side wall of the cabinet (2), a bearing seat (13) is sealed and fixed in the middle of the embedding groove (12), and a double-headed gear rod (14) is rotatably installed in the middle of the bearing seat (13), and the bottom side gear of the double-headed gear rod (14) is meshed with the back teeth (104) provided on the back of the door panels (101) on both sides for transmission.

8. A self-cleaning constant temperature distribution cabinet body according to claim 7, characterized in that: A linkage cleaning assembly (15) is provided at the bottom end of the chamber (3), and the linkage cleaning assembly (15) comprises a grille pedal (1501) and a scraper bar (1502); the surface of the grille pedal (1501) is densely covered with through holes, and a scraper bar (1502) is provided at the rear end of the bottom of the grille pedal (1501), and the scraper bar (1502) is in contact with the bottom end of the chamber (3).

9. A self-cleaning constant temperature power distribution cabinet body according to claim 8, characterized in that: The linkage cleaning assembly (15) further comprises a rotating pin (1503) and a support foot (1504); the rotating pins (1503) are fixedly mounted on both sides of the front end of the grille pedal (1501), and the support foot (1504) is rotatably folded inside the rotating pin (1503).

10. A self-cleaning constant temperature power distribution cabinet body according to claim 9, characterized in that: The linkage cleaning assembly (15) further comprises a connecting rib (1505) and a driven rack (1506); the connecting rib (1505) is fixedly mounted on both sides of the rear end of the grille pedal (1501); the grille pedal (1501) is fixedly connected to the driven racks (1506) on both sides via the connecting rib (1505); the driven racks (1506) on both sides are slidably matched with the corresponding guide seats (11), and the driven racks (1506) are meshed with the top gear of the double-headed gear rod (14) for transmission.

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