Dust filtering and ventilating device for communication base station machine room

Abstract

The invention relates to the technical field of dust filtration and ventilation devices, and discloses a dust filtration and ventilation device for a communication base station machine room, the dust filtration and ventilation device comprises a shell, a ventilation cavity is formed in the shell, a ventilation fan is mounted in the ventilation cavity, cleaning cavities are formed in the top and the bottom of the shell, and the two ends of each cleaning cavity are connected with an air inlet cavity and an exhaust cavity respectively; the filter screen in the ventilation cavity can be replaced through rotation of the replacement disc, so that continuous ventilation of the ventilation device is kept, in the process that the filter screen is replaced by the replacement disc, energy storage can be conducted on the driving device, and when the filter screen enters the cleaning cavity, energy storage is conducted on the driving device. The driving device automatically releases energy and drives the cleaning mechanism to clean dust on the filter screen, part of airflow in the ventilation cavity enters the air inlet cavity under the action of the flow dividing mechanism, the dust on the filter screen is blown and cleaned through the entering airflow, and the cleaned dust is blown out of the exhaust cavity. While ventilation is kept, dust on the filter screen can be cleaned in a concentrated mode.

Description

Technical Field

[0001] The invention relates to the technical field of dust filtering and ventilation devices, and in particular to a dust filtering and ventilation device used in a communication base station room. Background Art

[0002] Communication base stations are generally equipped with machine rooms, and a large number of electrical equipment are installed in the machine rooms. The electrical equipment in the machine rooms of communication base stations tend to emit a lot of heat during use, especially in the hot summer. If the heat in the machine room cannot be discharged in time, it is easy to cause the internal equipment of the machine room to be damaged due to overheating. Therefore, ventilation equipment needs to be installed in the machine room of the communication base station for ventilation and heat dissipation.

[0003] During use, existing ventilation devices are usually equipped with filters to filter dust from the air entering the machine room. However, with the continuous use of the ventilation device, the dust on the filter will gradually increase, which will cause the filter to be blocked and affect the continuous ventilation of the ventilation device. The existing ones will also use corresponding cleaning mechanisms to clean the dust on the filter, but since the ventilation device maintains a normal ventilation state, the cleaned dust will still gather on one side of the filter and re-attach to the filter under the action of the airflow, resulting in poor cleaning effect. If the ventilation device stops ventilating to clean the dust on the filter, the heat in the machine room will not be discharged in time, and the electrical equipment in the machine room will still be at risk of overheating. Therefore, improvements are needed. To this end, technical personnel in this field have proposed a dust filtering and ventilation device for a communication base station room to solve the problems raised in the above background. Summary of the invention

[0004] The object of the present invention is to provide a dust filtering and ventilation device for a communication base station room to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A dust filtering and ventilation device for a communication base station room comprises a shell, a ventilation cavity is provided in the shell, a ventilation fan is installed in the ventilation cavity, a cleaning cavity is provided at the top and bottom of the shell, and the two ends of the cleaning cavity are respectively connected to an air inlet cavity and an exhaust cavity, the air inlet cavity is communicated with the ventilation cavity, the exhaust cavity is communicated with the outside of the shell, a replacement mechanism is provided in the ventilation cavity, the replacement mechanism comprises a rotating shaft rotatably arranged in the ventilation cavity, a replacement disk passing through the cleaning cavity is installed on the rotating shaft, an installation cavity distributed in an annular shape is provided on the replacement disk, an installation frame is placed in the installation cavity, a filter screen is provided in the installation frame, and the installation frame is connected to the installation cavity through a control mechanism, a driving member connected to the rotating shaft is installed in the ventilation cavity, wherein the replacement mechanism is used to replace the filter screen, and the control mechanism is used to control the replacement mechanism to replace the filter screen, and further comprises:

[0007] A cleaning rack, the cleaning rack is installed in the cleaning chamber;

[0008] A cleaning mechanism, the cleaning mechanism is arranged on the cleaning frame and is used to clean the dust on the filter screen entering the cleaning chamber;

[0009] A shifting mechanism, which is arranged on the cleaning frame and is used to adjust the position of the cleaning mechanism;

[0010] A driving mechanism, which is arranged in the cleaning frame and is used to drive the shifting mechanism;

[0011] A transmission mechanism, the transmission mechanism is arranged in the ventilation cavity and is used to drive the driving mechanism;

[0012] The flow diverter mechanism is arranged at the end of the air inlet cavity and is used for introducing the air flow into the ventilation cavity.

[0013] As a preferred technical solution of the present invention, the control mechanism includes a plurality of movable grooves opened on the inner wall of the installation cavity, a movable block connected to the installation frame is slidably arranged in the movable groove, a support tube is installed in the movable groove, a slider is slidably arranged in the support tube, the slider is fixedly connected to the support rod, the support rod is connected to the movable block, a first elastic part connected to the slider is arranged in the support tube, and a pressure sensor is installed in the support tube.

[0014] As a preferred technical solution of the present invention, the cleaning mechanism includes a movable shaft slidably connected to the cleaning frame, a rotating frame is installed on the movable shaft, and a plurality of cleaning brushes are installed on the rotating frame.

[0015] As a preferred technical solution of the present invention, the shift mechanism includes a shift rod slidably connected to the cleaning frame, the shift rod is fixedly connected to the shift frame, and the shift frame is connected to the cleaning frame through a second elastic member, the shift frame is rotatably connected to a movable shaft, a moving head is installed on the side of the shift frame close to the replacement disk, and grooves corresponding to the filter screens are opened on the turntable.

[0016] As a preferred technical solution of the present invention, the driving mechanism includes a driving shaft rotatably arranged on the inner wall of the cleaning frame, a winding roller is installed on the driving shaft, a connecting rope is wound on the winding roller, a coil spring connected to the inner wall of the cleaning frame is arranged on the driving shaft, and a special-shaped rod is installed on one end of the driving shaft facing the movable shaft, and the special-shaped rod is slidably connected to the movable shaft.

[0017] As a preferred technical solution of the present invention, the transmission mechanism includes a transmission frame installed in the ventilation cavity, a transmission cavity is opened in the transmission frame, an incomplete gear is installed at one end of the rotating shaft penetrating into the transmission cavity, a transmission shaft is rotatably arranged on both sides of the incomplete gear in the transmission cavity, a first gear that can mesh with the incomplete gear is installed on the transmission shaft, limit rods are provided at both ends of the transmission cavity, a rack connected to the connecting rope is slidably provided on the limit rod, and a second gear meshing with the rack is installed on the transmission shaft.

[0018] As a preferred technical solution of the present invention, the diversion mechanism includes a guide plate rotatably arranged at the connection between the air inlet cavity and the ventilation cavity, one end of the telescopic member is hinged on the guide plate, and the other end of the telescopic member is hinged to the inner wall of the air inlet cavity.

[0019] As a preferred technical solution of the present invention, the outer shell is provided with a threaded connector and a dust collecting net cylinder threadably matched with the threaded connector at the exhaust chamber.

[0020] As a preferred technical solution of the present invention, guide vanes are installed at both ends of the shell.

[0021] The present invention has the following advantages: during use, the filter in the ventilation cavity can be replaced by rotating the replacement disk, thereby maintaining continuous ventilation of the ventilation device, and in the process of replacing the filter by replacing the replacement disk, the driving device will also store energy, so that when the filter enters the cleaning cavity, the driving device automatically releases energy and drives the cleaning mechanism to clean the dust on the filter, and under the action of the diversion mechanism, part of the airflow in the ventilation cavity enters the air inlet cavity, and the dust on the filter is blown and cleaned by the incoming airflow, and the cleaned dust is blown out from the exhaust cavity. The present invention can complete the centralized cleaning of dust on the filter while maintaining ventilation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The figure is a schematic diagram of the structure of a dust filtering and ventilation device used in a communication base station room.

[0023] Figure 2 The present invention is a schematic cross-sectional view of an outer shell of a dust filtering and ventilation device used in a communication base station room.

[0024] Figure 3 for Figure 2 Schematic diagram of the floor plan.

[0025] Figure 4 The present invention is a schematic diagram of the structure inside the installation cavity of a dust filtering and ventilation device used in a communication base station room.

[0026] Figure 5 The present invention is a schematic diagram of the structure of a control mechanism in a dust filtering and ventilation device used in a communication base station room.

[0027] Figure 6 The present invention is a structural schematic diagram of a cleaning mechanism in a dust filtering and ventilation device used in a communication base station room.

[0028] Figure 7 The present invention is a structural schematic diagram of a displacement mechanism in a dust filtering and ventilation device used in a communication base station room.

[0029] Figure 8 The present invention is a cross-sectional schematic diagram of a cleaning frame and a transmission frame in a dust filtering and ventilation device used in a communication base station room.

[0030] Fig. 9 for Figure 8 A partial enlarged view of point A in the middle.

[0031] Fig.10 The present invention is a schematic diagram of the structure of the coordination between a movable shaft and a driving shaft in a dust filtering and ventilation device used in a communication base station room.

[0032] Fig.11 The present invention is a structural schematic diagram of a diversion mechanism in a dust filtering and ventilation device used in a communication base station room.

[0033] Fig.12 The present invention is a schematic diagram of the structure of a dust collecting net cylinder in a dust filtering and ventilation device used in a communication base station room.

[0034] In the figure: 1, housing; 2, ventilation cavity; 3, ventilation fan; 4, cleaning cavity; 5, air inlet cavity; 6, exhaust cavity; 7, replacement mechanism; 701, rotating shaft; 702, replacement plate; 703, installation cavity; 704, installation frame; 705, filter screen; 706, driving member; 8, control mechanism; 801, movable groove; 802, movable block; 803, support rod; 804, slider; 805, support cylinder; 806, first elastic member; 807, pressure sensor; 9, cleaning rack; 10, cleaning mechanism; 1001, movable shaft; 1002, rotating rack; 1003, cleaning brush; 11, shifting mechanism; 1101, shifting rack; 110 2. Shift rod; 1103. Second elastic member; 1104. Moving head; 1105. Groove; 12. Driving mechanism; 1201. Driving shaft; 1202. Winding roller; 1203. Connecting rope; 1204. Coil spring; 1205. Special-shaped rod; 13. Transmission mechanism; 1301. Transmission frame; 1302. Transmission cavity; 1303. Incomplete gear; 1304. Transmission shaft; 1305. First gear; 1306. Second gear; 1307. Rack; 1308. Limiting rod; 14. Diverter mechanism; 1401. Guide plate; 1402. Telescopic member; 15. Threaded connector; 16. Dust collecting net cylinder; 17. Guide blade. DETAILED DESCRIPTION

[0035] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0036] See also Figure 1-12 A dust filtering and ventilation device for a communication base station room comprises a shell 1, a ventilation cavity 2 is provided in the shell 1, a ventilation fan 3 is installed in the ventilation cavity 2, a cleaning cavity 4 is provided at the top and the bottom of the shell 1, and an air inlet cavity 5 and an exhaust cavity 6 are connected to the two ends of the cleaning cavity 4, respectively, the air inlet cavity 5 is communicated with the ventilation cavity 2, the exhaust cavity 6 is communicated with the outside of the shell 1, a replacement mechanism 7 is provided in the ventilation cavity 2, and the replacement mechanism 7 comprises a rotating shaft 701 rotatably provided in the ventilation cavity 2, and a fan 3 is installed on the rotating shaft 701 which passes through the cleaning cavity 4. The replacement plate 702 is provided with an annularly distributed installation cavity 703, the number of the installation cavity 703 is set to four, an installation frame 704 is placed in the installation cavity 703, a filter screen 705 is arranged in the installation frame 704, and the installation frame 704 is connected to the installation cavity 703 through a control mechanism 8, a driving member 706 connected to the rotating shaft 701 is installed in the ventilation cavity 2, wherein the replacement mechanism 7 is used to replace the filter screen 705, and the control mechanism 8 is used to control the replacement mechanism 7 to replace the filter screen 705, and further includes:

[0037] A cleaning frame 9, the cleaning frame 9 is installed in the cleaning chamber 4;

[0038] A cleaning mechanism 10, which is disposed on the cleaning frame 9 and is used to clean dust on the filter screen 705 entering the cleaning chamber 4;

[0039] A shifting mechanism 11, which is arranged on the cleaning frame 9 and is used to adjust the position of the cleaning mechanism 10;

[0040] A driving mechanism 12, wherein the driving mechanism 12 is disposed in the cleaning frame 9 and is used to drive the shifting mechanism 11;

[0041] A transmission mechanism 13, wherein the transmission mechanism 13 is disposed in the ventilation chamber 2 and is used to drive the driving mechanism 12;

[0042] The flow diverter mechanism 14 is arranged at the end of the air inlet cavity 5 and is used for introducing the air flow into the ventilation cavity 2 .

[0043] In the process of ventilating the communication base station room, the present invention starts the ventilation fan 3 through an external controller, and the ventilation fan 3 sucks the air outside the room into the ventilation chamber 2, and then discharges it into the room, so as to ventilate and dissipate heat for the electrical equipment in the room. When too much dust accumulates on the filter 705 on the replacement tray 702 located in the ventilation chamber 2, the fluidity of air passing through the filter 705 decreases, and the resistance of the filter 705 to the airflow increases. The suction force generated by the ventilation fan 3 and the thrust of the outside air entering the ventilation chamber 2 will push the installation frame 704 to move in the installation chamber 703, thereby triggering the control mechanism 8. The control mechanism 8 will start the driving member 706, so that the driving member 706 drives the rotating shaft 701 to rotate 90 degrees, thereby driving the replacement tray 702 to rotate 90 degrees, so that the two filters 705 originally located in the ventilation chamber 2 are transferred to the two cleaning chambers 4 at the top and bottom of the outer shell 1, and the two filters 705 originally located in the ventilation chamber 2 are transferred to the two cleaning chambers 4 at the top and bottom of the outer shell 1. The dust-free filters 705 in the two cleaning chambers 4 will be transferred to the ventilation chamber 2, thereby ensuring that the ventilation device can continuously ventilate the machine room, and in the process of transferring the filter 705 with excessive dust accumulation into the cleaning chamber 4, the rotating shaft 701 will drive the transmission mechanism 13, so that the transmission mechanism 13 drives the driving mechanism 12, so that the driving mechanism 12 stores energy, and when the filter 705 completely enters the cleaning chamber 4, the cleaning mechanism 10 will contact the filter 705 under the action of the shifting mechanism 11, and the driving mechanism 12 starts to drive the cleaning mechanism 10, so that the cleaning mechanism 10 can clean the dust on the filter 705, and the diversion mechanism 14 will introduce the airflow in the ventilation chamber 2 into the air inlet chamber 5, and the filter 705 will be blown by the incoming airflow, so that the dust on the filter 705 can be blown and cleaned, and the cleaned dust can be blown into the exhaust chamber 6, and then the dust discharged from the exhaust chamber 6 can be collected.

[0044] In one case of the present embodiment, the control mechanism 8 includes a plurality of movable grooves 801 provided on the inner wall of the mounting cavity 703, wherein a movable block 802 connected to the mounting frame 704 is slidably arranged in the movable groove 801, a support tube 805 is installed in the movable groove 801, a slider 804 is slidably arranged in the support tube 805, the slider 804 is fixedly connected to a support rod 803, and the support rod 803 is connected to the movable block 802, a first elastic member 806 connected to the slider 804 is arranged in the support tube 805, preferably, the first elastic member 806 is arranged as a spring, and a pressure sensor 807 is installed in the support tube 805.

[0045] When too much dust accumulates on the filter 705 on the replacement plate 702 in the ventilation chamber 2, the fluidity of air passing through the filter 705 decreases, and the resistance of the filter 705 to the airflow becomes larger. The suction force generated by the ventilation fan 3 and the thrust of the outside air entering the ventilation chamber 2 will push the installation frame 704 to move in the installation chamber 703. When the installation frame 704 moves, it will push the movable block 802 to move in the movable groove 801, and push the slider 804 to move in the support tube 805 through the support rod 803 until the slider 804 abuts against the pressure sensor 807. The device 807 detects the pressure change and starts to replace the filter 705 through the external controller. When the filter 705 with a large amount of dust accumulates enters the cleaning chamber 4, there is no thrust of the airflow and the suction of the ventilation fan 3. Under the action of the first elastic member 806, the slider 804 is reset, and the support rod 803 pushes the movable block 802 to reset, so that the filter 705 on the mounting frame 704 is reset, which facilitates the contact between the filter 705 and the cleaning mechanism 10, and also starts the diversion mechanism 14 to guide part of the airflow in the ventilation chamber 2 into the air inlet chamber 5.

[0046] In one case of this embodiment, the cleaning mechanism 10 includes a movable shaft 1001 slidably connected to the cleaning frame 9 , a rotating frame 1002 is mounted on the movable shaft 1001 , and a plurality of cleaning brushes 1003 are mounted on the rotating frame 1002 .

[0047] In the process of transferring the filter 705 with excessive dust accumulation into the cleaning chamber 4, the rotating shaft 701 will drive the transmission mechanism 13, so that the transmission mechanism 13 drives the driving mechanism 12, so that the driving mechanism 12 stores energy. When the filter 705 completely enters the cleaning chamber 4, the cleaning mechanism 10 will contact the filter 705 under the action of the shifting mechanism 11, and the driving mechanism 12 starts to drive the movable shaft 1001 of the cleaning mechanism 10 to rotate, so that the rotating frame 1002 rotates, so that the cleaning brush 1003 on the rotating frame 1002 can clean the dust on the filter 705.

[0048] In one case of this embodiment, the shift mechanism 11 includes a shift rod 1102 slidably connected to the cleaning rack 9, the shift rod 1102 is fixedly connected to the shift rack 1101, and the shift rack 1101 is connected to the cleaning rack 9 through a second elastic member 1103. Preferably, the second elastic member 1103 is configured as a spring, and the shift rack 1101 is rotatably connected to the movable shaft 1001. A moving head 1104 is installed on the side of the shift rack 1101 close to the replacement disk 702, and a groove 1105 corresponding to the filter 705 is opened on the turntable.

[0049] When the replacement plate 702 rotates 90 degrees to replace the filter 705, in order to prevent the cleaning brush 1003 of the cleaning mechanism 10 from contacting the filter 705 that gradually enters the cleaning chamber 4 and causing the dust to be moved and dispersed into the ventilation chamber 2, in the present embodiment, when the replacement plate 702 starts to rotate, the moving head 1104 on the shift frame 1101 will move out of the groove 1105 of the replacement plate 702, thereby pushing the shift frame 1101 to shift, and the moving frame will drive the cleaning mechanism 10 to move a certain distance to one side of the cleaning frame 9, so that there is a gap between the cleaning brush 1003 of the cleaning mechanism 10 and the filter 705 that gradually enters the cleaning chamber 4, thereby making The cleaning mechanism 10 can clean the dust on the filter 705 after the filter 705 is completely in the cleaning chamber 4, so that the dust on the filter 705 is concentrated in the cleaning chamber 4, which is convenient for cleaning. When the replacement disk 702 rotates 90 degrees, the filter 705 accumulated with dust is completely transferred into the cleaning chamber 4. At this time, the moving head 1104 on the shift frame 1101 will re-enter the groove 1105. Under the action of the second elastic member 1103, the shift frame 1101 is subjected to an elastic thrust, so that the shift frame 1101 is reset, so that the cleaning brush 1003 contacts the filter 705, which is convenient for the cleaning brush 1003 to rotate and clean the dust on the filter 705.

[0050] In one case of this embodiment, the driving mechanism 12 includes a driving shaft 1201 rotatably arranged on the inner wall of the cleaning frame 9, a winding roller 1202 is installed on the driving shaft 1201, a connecting rope 1203 is wound on the winding roller 1202, a coil spring 1204 connected to the inner wall of the cleaning frame 9 is arranged on the driving shaft 1201, and a special-shaped rod 1205 is installed on one end of the driving shaft 1201 facing the movable shaft 1001, and the special-shaped rod 1205 is slidably connected to the movable shaft 1001. The transmission mechanism 13 includes a transmission frame 1301 installed in the ventilation chamber 2, and a transmission chamber 1302 is opened in the transmission frame 1301. An incomplete gear 1303 is installed at one end of the rotating shaft 701 that penetrates into the transmission chamber 1302. Transmission shafts 1304 are rotatably arranged on both sides of the incomplete gear 1303 in the transmission chamber 1302, and a first gear 1305 that can mesh with the incomplete gear 1303 is installed on the transmission shaft 1304. Limit rods 1308 are provided at both ends of the transmission chamber 1302, and a rack 1307 connected to the connecting rope 1203 is slidably arranged on the limit rod 1308. A second gear 1306 that meshes with the rack 1307 is installed on the transmission shaft 1304.

[0051] When the shaft 701 drives the replacement plate 702 to rotate 90 degrees, the shaft 701 will also drive the incomplete gear 1303 to rotate. When the incomplete gear 1303 rotates and meshes with the first gear 1305, the transmission shaft 1304 will drive the second gear 1306 to rotate. The second gear 1306 will drive the rack 1307 to slide along the limit rod 1308. The moving rack 1307 will pull the connecting rope 1203, and the connecting rope 1203 will pull the winding roller 1202 to rotate, so that the driving shaft 1201 will rotate, and the winding spring 1204 will be deformed. When the shaft 701 rotates 90 degrees, the incomplete gear 1303 will rotate. The full gear 1303 is separated from the first gear 1305. At this time, the driving shaft 1201 is reversed under the action of the coil spring 1204. The driving shaft 1201 drives the movable shaft 1001 to rotate through the special-shaped rod 1205, so that the rotating frame 1002 rotates, so that the cleaning brush 1003 on the rotating frame 1002 cleans the dust on the filter 705, and because the driving shaft 1201 is reversed, the winding roller 1202 begins to reel in the connecting rope 1203, and the connecting rope 1203 drives the rack 1307 to move and reset, so that the first gear 1305 and the second gear 1306 are reset, waiting for the next filter 705 replacement.

[0052] In one case of this embodiment, the diversion mechanism 14 includes a guide plate 1401 rotatably arranged at the connection between the air inlet chamber 5 and the ventilation chamber 2, and one end of the telescopic member 1402 is hinged on the guide plate 1401. Preferably, the telescopic member 1402 is configured as a hydraulic rod, and the other end of the telescopic member 1402 is hinged to the inner wall of the air inlet chamber 5.

[0053] When the filter 705 is transferred into the cleaning chamber 4 and cleaned by the cleaning brush 1003 on the cleaning mechanism 10, the external controller will drive the telescopic member 1402 to make the guide plate 1401 rotate toward one side of the ventilation chamber 2, thereby opening the air inlet chamber 5. The airflow in the ventilation chamber 2 will partially enter the air inlet chamber 5 under the action of the guide plate 1401, so that the filter 705 can be blown and cleaned by the incoming airflow, and the cleaned dust can be blown into the exhaust chamber 6, and then the dust discharged from the exhaust chamber 6 can be collected.

[0054] In one case of this embodiment, a threaded connector 15 and a dust collecting net cylinder 16 threadably matched with the threaded connector 15 are installed on the housing 1 at the exhaust chamber 6 .

[0055] During installation, the dust collecting net cylinder 16 is screwed onto the threaded connector 15, so that the dust discharged from the exhaust chamber 6 can be collected in a centralized manner. The dust cleaned from the filter screen 705 can be processed by directly unscrewing the dust collecting net cylinder 16, which is convenient to use.

[0056] In one case of this embodiment, guide vanes 17 are installed at both ends of the housing 1 to achieve a certain barrier and protection effect.

[0057] During use of the present invention, the filter 705 in the ventilation chamber 2 can be replaced by rotating the replacement disk 702, thereby maintaining continuous ventilation of the ventilation device, and in the process of replacing the filter 705 by the replacement disk 702, the driving device will also store energy, so that when the filter 705 enters the cleaning chamber 4, the driving device automatically releases energy and drives the cleaning mechanism 10 to clean the dust on the filter 705, and under the action of the diversion mechanism 14, part of the airflow in the ventilation chamber 2 enters the air inlet chamber 5, and the dust on the filter 705 is blown and cleaned by the incoming airflow, and the cleaned dust is blown out from the exhaust chamber 6. The present invention can complete the centralized cleaning of dust on the filter 705 while maintaining ventilation.

[0058] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0059] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A dust filtering and ventilation device for a communication base station room, comprising a housing, a ventilation cavity is provided in the housing, a ventilation fan is installed in the ventilation cavity, and the characteristics are: The top and bottom of the shell are provided with a cleaning chamber, and the two ends of the cleaning chamber are respectively connected with an air inlet chamber and an exhaust chamber, the air inlet chamber is communicated with the ventilation chamber, the exhaust chamber is communicated with the outside of the shell, a replacement mechanism is provided in the ventilation chamber, the replacement mechanism includes a rotating shaft rotatably arranged in the ventilation chamber, a replacement disk passing through the cleaning chamber is installed on the rotating shaft, an annular installation chamber is provided on the replacement disk, an installation frame is placed in the installation chamber, a filter is arranged in the installation frame, and the installation frame is connected to the installation chamber through a control mechanism, a driving member connected to the rotating shaft is installed in the ventilation chamber, wherein the replacement mechanism is used to replace the filter, and the control mechanism is used to control the replacement mechanism to replace the filter, and further includes: A cleaning rack, the cleaning rack is installed in the cleaning chamber; A cleaning mechanism, the cleaning mechanism is arranged on the cleaning frame and is used to clean the dust on the filter screen entering the cleaning chamber; A shifting mechanism, which is arranged on the cleaning frame and is used to adjust the position of the cleaning mechanism; A driving mechanism, which is arranged in the cleaning frame and is used to drive the shifting mechanism; A transmission mechanism, the transmission mechanism is arranged in the ventilation cavity and is used to drive the driving mechanism; The flow diverter mechanism is arranged at the end of the air inlet cavity and is used for introducing the air flow into the ventilation cavity.

2. A dust filtering and ventilation device for a communication base station room according to claim 1, characterized in that: The control mechanism includes a plurality of movable grooves provided on the inner wall of the installation cavity, wherein a movable block connected to the installation frame is slidably arranged in the movable groove, a support tube is installed in the movable groove, a slider is slidably arranged in the support tube, the slider is fixedly connected to a support rod, the support rod is connected to the movable block, a first elastic member connected to the slider is provided in the support tube, and a pressure sensor is installed in the support tube.

3. A dust filtering and ventilation device for a communication base station room according to claim 1, characterized in that: The cleaning mechanism comprises a movable shaft slidably connected to the cleaning frame, a rotating frame is installed on the movable shaft, and a plurality of cleaning brushes are installed on the rotating frame.

4. A dust filtering and ventilation device for a communication base station room according to claim 3, characterized in that: The shift mechanism includes a shift rod slidably connected to the cleaning frame, the shift rod is fixedly connected to the shift frame, and the shift frame is connected to the cleaning frame through a second elastic member. The shift frame is rotatably connected to a movable shaft, a moving head is installed on the side of the shift frame close to the replacement disk, and grooves corresponding to the filter screens are opened on the turntable.

5. The dust filtering and ventilation device for a communication base station room according to claim 3, characterized in that: The driving mechanism includes a driving shaft rotatably arranged on the inner wall of the cleaning frame, a winding roller is installed on the driving shaft, a connecting rope is wound on the winding roller, a coil spring connected to the inner wall of the cleaning frame is arranged on the driving shaft, and a special-shaped rod is installed on one end of the driving shaft facing the movable shaft, and the special-shaped rod is slidably connected to the movable shaft.

6. A dust filtering and ventilation device for a communication base station room according to claim 5, characterized in that: The transmission mechanism includes a transmission frame installed in the ventilation cavity, a transmission cavity is opened in the transmission frame, an incomplete gear is installed at one end of the rotating shaft that penetrates into the transmission cavity, a transmission shaft is rotatably arranged on both sides of the incomplete gear in the transmission cavity, a first gear that can mesh with the incomplete gear is installed on the transmission shaft, limit rods are provided at both ends of the transmission cavity, a rack connected to the connecting rope is slidably provided on the limit rod, and a second gear meshing with the rack is installed on the transmission shaft.

7. A dust filtering and ventilation device for a communication base station room according to claim 6, characterized in that: The diversion mechanism comprises a guide plate rotatably arranged at the connection between the air inlet cavity and the ventilation cavity, one end of the telescopic member is hinged on the guide plate, and the other end of the telescopic member is hinged to the inner wall of the air inlet cavity.

8. The dust filtering and ventilation device for a communication base station room according to claim 1, characterized in that: The outer shell is provided with a threaded connector and a dust collecting net cylinder threadably matched with the threaded connector at the exhaust cavity.

9. The dust filtering and ventilation device for a communication base station room according to claim 1, characterized in that: Guide vanes are installed at both ends of the shell.

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