Fire-fighting and ventilation dual-purpose cabinet type centrifugal fan

Abstract

The utility model discloses a fire-fighting and ventilation dual-purpose cabinet type centrifugal fan, which relates to the technical field of fire-fighting and ventilation, and comprises a box body, a first motor is fixedly arranged at the left part of the top end of the box body, a first transmission assembly is fixedly arranged at the output end of the first motor, and the first transmission assembly comprises two rollers and a toothed belt; the axis of the left end of the upper roller is fixedly connected with the output end of a first motor, the outer walls of the two rollers are connected with the inner wall of a toothed belt in a meshed mode, and the left end of the lower roller extends into the box body. According to the dual-purpose cabinet type centrifugal fan for fire fighting and ventilation, smoke dust generated by a fire disaster can be filtered through the effect of the filtering structure, the situation that the service life of the centrifugal impeller is shortened due to the fact that the centrifugal impeller is abraded by particles doped in the centrifugal impeller is avoided, meanwhile, the filter plate can be washed when the smoke dust is filtered, and the service life of the centrifugal impeller is prolonged. The cleaning effect is achieved, and the filter plate can be prevented from being damaged by high-temperature smoke dust.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting ventilation, in particular to a dual-purpose cabinet centrifugal fan for fire-fighting ventilation. Background Art

[0002] Cabinet centrifugal fans are resistant to high temperatures, have excellent performance, novel and compact structure, low vibration, light weight, and are easy to install and use. In addition, cabinet centrifugal fans generate low noise, are flexible in adjusting air volume and direction, have a full range of models, and have obvious advantages in energy saving and environmental protection. Adding a filter structure to the cabinet centrifugal fan can enable the cabinet centrifugal fan to still perform ventilation effects when facing a fire protection environment.

[0003] For example, the Chinese patent with publication number CN212429231 U discloses a dual-purpose cabinet centrifugal fan for fire protection and ventilation, which specifically relates to the technical field of centrifugal fans, including a chassis, the front side surface of the chassis is provided with an air outlet, and a servo motor is installed at the top of the chassis, the output shaft end of the servo motor is fixedly connected to a rotating shaft, and a protective cover is installed on the outside of the servo motor, and a driving wheel is installed on the circumferential side outer wall of the rotating shaft, and a belt is installed on the surface of the driving wheel. The utility model is provided with a cylinder, a mounting plate and a dustproof net, and the slider slides in the slide groove to ensure the orientation of the mounting plate during movement, which is convenient for removing and cleaning the dustproof net and facilitating the next use. The mounting plate is automatically opened or reset by the cylinder to reduce the labor intensity, and the protective cover is provided to isolate the noise generated by the servo motor to achieve the removal of sound, which can improve the sound insulation effect of the protective cover and solve the problem of poor sound insulation effect of the chassis when working.

[0004] The existing technology has the following problems:

[0005] In actual use, in the fire-fighting environment, the air contains a large amount of high-temperature particulate debris. During the high-speed rotation of the centrifugal impeller, the particles collide with the blades of the centrifugal impeller, which causes the centrifugal impeller to wear rapidly, thereby reducing the service life of the centrifugal impeller. The high-temperature smoke generated by the fire will affect the normal operation of the cabinet centrifugal fan itself, and will also cause certain pollution to the external environment. Utility Model Content

[0006] The utility model provides a cabinet-type centrifugal fan for fire fighting and ventilation to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A dual-purpose cabinet centrifugal fan for fire fighting and ventilation, comprising a box body, a first motor is fixedly installed on the left part of the top end of the box body, a first transmission assembly is fixedly installed on the output end of the first motor, the first transmission assembly comprises two rollers and a toothed belt, the axis center of the left end of the upper roller is fixedly connected to the output end of the first motor, the outer walls of the two rollers are meshed and connected with the inner walls of the toothed belt, the left end of the lower roller extends to the interior of the box body, a centrifugal impeller is fixedly connected to the axis center of the left end of the lower roller, the outside of the centrifugal impeller is rotatably connected to the inside of the box body, an air inlet that runs through the box body is opened on the left part of the box body, the air inlet is located just to the left of the centrifugal impeller, a filtering structure is fixedly installed in the middle part of the top end of the box body, and an adjustment structure is fixedly connected to the front end of the box body.

[0009] Preferably, the filtering structure comprises a filter plate, the filter plate is located on the left side of the air inlet, and the outer portion of the filter plate is plugged into the left portion of the inner portion of the box body.

[0010] Preferably, the rear end of the filter plate is fixedly connected to a fixing plate, the upper and lower parts of the left rear end of the box body are fixedly connected to fixing frames, the opposite surfaces of the two fixing frames are plugged into the upper and lower parts of the fixing plate, the upper and lower parts of the fixing plate are fixedly connected to elastic telescopic rods, the output ends of the two elastic telescopic rods are fixedly connected to positioning blocks, and the outer walls of the upper and lower positioning blocks are respectively plugged into the middle parts of the upper and lower fixing frames.

[0011] Preferably, a water tank is fixedly connected to the middle of the top of the box body, a water valve is fixedly installed on the left part of the bottom of the water tank, a water diversion box is fixedly connected to the left part of the water valve, and the water diversion box is located on the left side of the top of the filter plate.

[0012] Preferably, a water trough is provided at the bottom of the left portion of the box body, the water trough is located to the left of the bottom of the filter plate, a filter element is inserted into the water trough, and a rectangular plug is inserted into the front end of the box body, the rectangular plug is located directly in front of the filter element.

[0013] Preferably, a water storage chamber is provided inside the bottom of the box body, a rectangular hole penetrating the water tank is provided at the bottom of the water tank, the bottom of the rectangular hole extends to the inside of the water storage chamber, a water pump is fixedly installed on the left part of the top of the box body, the input end of the water pump extends to the bottom of the water storage chamber, and the output end of the water pump extends to the top of the inside of the water tank.

[0014] Preferably, the regulating structure comprises an air outlet pipe, the air outlet pipe is fixedly connected to the front end of the box body, and three valve leaves are rotatably connected inside the air outlet pipe.

[0015] Preferably, the tops of the three valve leaves extend out of the top of the air outlet duct, the tops of the three valve leaves are fixedly connected to worm gears, the top of the air outlet duct is fixedly connected to a rectangular box, the right end inside the rectangular box is rotatably connected to a worm, the outer wall of the worm is meshingly connected to the outer walls of the three worm gears, the left end of the worm is fixedly connected to a second transmission assembly, the second transmission assembly includes two gears and a toothed belt, the left end of the worm is fixedly connected to the right end of the gear located in the front, a second motor is fixedly installed on the left part of the inside of the rectangular box, the output end of the second motor is fixedly connected to the right end of the gear located in the rear, and the outer walls of the two gears are meshingly connected to the inner wall of the toothed belt.

[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0017] 1. The utility model provides a dual-purpose cabinet centrifugal fan for fire fighting and ventilation. Through the function of the filtering structure, the smoke generated by the fire can be filtered to prevent the particulate matter mixed inside from causing wear to the centrifugal impeller, thereby reducing its service life. At the same time, the filter plate can be washed while filtering the smoke, which can achieve a cleaning effect and prevent the filter plate from being damaged by high-temperature smoke.

[0018] 2. The utility model provides a dual-purpose cabinet centrifugal fan for fire protection and ventilation. Through the function of the adjustment structure, the air outlet flow rate and flow direction of the cabinet centrifugal fan can be adjusted, so that the cabinet centrifugal fan can be suitable for a variety of environments. At the same time, the valve blades can be closed when the cabinet centrifugal fan is idle, thereby preventing debris from entering the interior of the cabinet centrifugal fan and causing damage to its internal components. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the fixed plate structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the water valve structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the filter plate structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the filter element structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the worm gear structure of the utility model.

[0025] In the figure: 1. box body; 2. first motor; 3. first transmission assembly; 4. centrifugal impeller; 5. air inlet; 6. filtering structure; 61. filter plate; 62. fixing plate; 63. elastic telescopic rod; 64. positioning block; 65. fixing frame; 66. water tank; 67. water valve; 68. water distribution box; 69. water tank; 610. filter element; 611. rectangular plug; 612. rectangular hole; 613. water storage chamber; 614. water pump; 7. adjusting structure; 71. air outlet pipe; 72. valve leaf; 73. worm gear; 74. worm; 75. second motor; 76. second transmission assembly; 77. rectangular box. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] like Figure 1 and Figure 5 As shown, a fire-fighting and ventilation dual-purpose cabinet centrifugal fan includes a box body 1, a first motor 2 is fixedly installed on the left part of the top of the box body 1, and a first transmission assembly 3 is fixedly installed on the output end of the first motor 2. The first transmission assembly 3 includes two rollers and a toothed belt. The axis center at the left end of the upper roller is fixedly connected to the output end of the first motor 2, and the outer walls of the two rollers are meshed and connected with the inner walls of the toothed belt. The left end of the lower roller extends to the interior of the box body 1, and a centrifugal impeller 4 is fixedly connected to the axis center at the left end of the lower roller. The outside of the centrifugal impeller 4 is rotatably connected to the inside of the box body 1. An air inlet 5 that runs through the box body 1 is opened on the left part of the box body 1, and the air inlet 5 is located just to the left of the centrifugal impeller 4. A filtering structure 6 is fixedly installed in the middle of the top of the box body 1, and an adjustment structure 7 is fixedly connected to the front end of the box body 1.

[0028] By providing the filtering structure 6 , the smoke from the fire can be filtered, thereby preventing the high-temperature particles in the smoke from damaging the centrifugal impeller 4 .

[0029] like Figure 1 and Figure 4 As shown, the filter structure 6 includes a filter plate 61 , which is located on the left side of the air inlet 5 , and the outside of the filter plate 61 is plugged into the left part of the inside of the box body 1 .

[0030] By providing the filter plate 61 , particulate matter in the smoke passing through the air inlet 5 can be removed, thereby achieving the effect of protecting the centrifugal impeller 4 .

[0031] like Figure 4As shown, the rear end of the filter plate 61 is fixedly connected to a fixing plate 62, and the upper and lower parts of the left rear end of the box body 1 are fixedly connected to fixing frames 65, and the opposite surfaces of the two fixing frames 65 are plugged into the upper and lower parts of the fixing plate 62, and the upper and lower parts of the fixing plate 62 are fixedly connected to elastic telescopic rods 63, and the output ends of the two elastic telescopic rods 63 are fixedly connected to positioning blocks 64, and the outer walls of the upper and lower positioning blocks 64 are respectively plugged into the middle parts of the upper and lower fixing frames 65.

[0032] By providing the fixing plate 62 and the fixing frame 65 , the filter plate 61 can be disassembled and assembled, thereby facilitating maintenance and replacement of the filter plate 61 .

[0033] like Figure 1 and Figure 3 As shown, a water tank 66 is fixedly connected to the middle of the top of the box body 1, a water valve 67 is fixedly installed on the left part of the bottom of the water tank 66, and a water separation box 68 is fixedly connected to the left part of the water valve 67. The water separation box 68 is located on the left side of the top of the filter plate 61.

[0034] By providing a water tank 66 and utilizing a water valve 67 , water in the water tank 66 can be flushed onto the surface of the filter plate 61 , thereby flushing the filter plate 61 , while preventing the filter plate 61 from being burned by high-temperature smoke and dust.

[0035] like Figure 5 As shown, a water tank 69 is opened at the bottom of the left part of the box body 1, and the water tank 69 is located on the left side of the bottom of the filter plate 61. A filter element 610 is inserted into the water tank 69, and a rectangular plug 611 is inserted at the front end of the box body 1, and the rectangular plug 611 is located directly in front of the filter element 610.

[0036] By providing the filter element 610 , the water after flushing the filter plate 61 can be filtered, and the rectangular plug 611 can facilitate the maintenance and replacement of the filter element 610 .

[0037] like Figure 5 As shown, a water storage chamber 613 is opened inside the bottom of the box body 1, and a rectangular hole 612 penetrating the water tank 69 is opened at the bottom of the water tank 69, and the bottom of the rectangular hole 612 extends to the inside of the water storage chamber 613. A water pump 614 is fixedly installed on the left part of the top of the box body 1, and the input end of the water pump 614 extends to the bottom of the water storage chamber 613, and the output end of the water pump 614 extends to the top of the water tank 66.

[0038] By providing the water storage chamber 613, the filtered water can be collected and then pumped back into the water tank 66 by the water pump 614 for reuse.

[0039] like Figure 6 As shown, the regulating structure 7 includes an air outlet pipe 71 , which is fixedly connected to the front end of the box body 1 , and three valve leaves 72 are rotatably connected inside the air outlet pipe 71 .

[0040] By providing three valve leaves 72 and by the rotation of the three valve leaves 72 , the air outlet angle and flow rate of the box body 1 can be adjusted, and a certain protective effect can be achieved at the same time.

[0041] like Figure 6 As shown, the tops of the three valve leaves 72 extend out of the top of the air outlet duct 71, and the tops of the three valve leaves 72 are fixedly connected to worm gears 73. The top of the air outlet duct 71 is fixedly connected to a rectangular box 77, and the right end inside the rectangular box 77 is rotatably connected to a worm 74. The outer wall of the worm 74 is meshingly connected to the outer walls of the three worm gears 73. The left end of the worm 74 is fixedly connected to a second transmission assembly 76. The second transmission assembly 76 includes two gears and a toothed belt. The left end of the worm 74 is fixedly connected to the right end of the gear located in the front. A second motor 75 is fixedly installed on the left part of the rectangular box 77, and the output end of the second motor 75 is fixedly connected to the right end of the gear located in the rear, and the outer walls of the two gears are meshingly connected to the inner wall of the toothed belt.

[0042] By providing the worm wheel 73 and the worm 74 , the angle of the valve leaf 72 can be adjusted under the driving action of the second motor 75 .

[0043] The working principle of the utility model is as follows: when in use, the first motor 2 is started first, and the centrifugal impeller 4 is driven to rotate under the action of the first transmission component 3, and then the smoke and dust at the air inlet 5 are pumped to the side of the air outlet pipe 71 and discharged. In this process, the smoke and dust are filtered by the filter plate 61, and the water valve 67 is opened. The water valve 67 discharges the water in the water tank 66 to the surface of the filter plate 61 through the water separation box 68, and then the surface of the filter plate 61 is rinsed. The rinsed water flows through the water tank 69 to the filter element 610 for filtration, and the filtered water falls into the storage tank 69. In the water chamber 613, at this time, the water pump 614 is started again, and the water pump 614 transports the water in the water storage chamber 613 back to the water tank 66, so that the water is recycled. When it is necessary to control the gas inflow and flow direction of the air outlet pipe 71, the second motor 75 is started, and the second motor 75 drives the worm 74 to rotate, and then drives the three worm gears 73 to rotate synchronously, thereby achieving the effect of adjusting the angle of the valve leaf 72, thereby achieving the regulation of the air outlet inflow and angle. When the three valve leaves 72 are controlled to be closed, external debris can be prevented from falling into the box body 1.

[0044] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A fire-fighting and ventilation dual-purpose cabinet centrifugal fan, comprising a box body (1), characterized in that: A first motor (2) is fixedly mounted on the left portion of the top of the housing (1); a first transmission assembly (3) is fixedly mounted on the output end of the first motor (2); the first transmission assembly (3) comprises two rollers and a toothed belt; the axis of the left end of the upper roller is fixedly connected to the output end of the first motor (2); the outer walls of the two rollers are meshedly connected to the inner wall of the toothed belt; the left end of the lower roller extends into the interior of the housing (1); a centrifugal impeller (4) is fixedly connected to the axis of the left end of the lower roller; the outer portion of the centrifugal impeller (4) is rotatably connected to the interior of the housing (1); an air inlet (5) penetrating the housing (1) is provided on the left portion of the housing (1); the air inlet (5) is located directly to the left of the centrifugal impeller (4); a filtering structure (6) is fixedly mounted in the middle portion of the top of the housing (1); and an adjusting structure (7) is fixedly connected to the front end of the housing (1); The filtering structure (6) comprises a filter plate (61), the filter plate (61) being located to the left of the air inlet (5), the outside of the filter plate (61) being plugged into the left part of the inside of the box (1), the rear end of the filter plate (61) being fixedly connected to a fixing plate (62), the upper and lower parts of the left part of the rear end of the box (1) being fixedly connected to fixing frames (65), the opposite surfaces of the two fixing frames (65) being plugged into the upper and lower parts of the fixing plate (62), the fixing plate (62) being fixedly connected to the left part of the rear end of the box (1), The upper and lower parts of the box body (1) are fixedly connected to elastic telescopic rods (63), the output ends of the two elastic telescopic rods (63) are fixedly connected to positioning blocks (64), the outer walls of the upper and lower positioning blocks (64) are respectively plugged into the middle parts of the upper and lower fixing frames (65), the middle part of the top of the box body (1) is fixedly connected to a water tank (66), the left part of the bottom of the water tank (66) is fixedly installed with a water valve (67), and the left part of the water valve (67) is fixedly connected to A water separation box (68) is provided, the water separation box (68) being located to the left of the top of the filter plate (61); a water tank (69) is provided at the bottom of the left portion of the box body (1); the water tank (69) is located to the left of the bottom of the filter plate (61); a filter element (610) is inserted into the water tank (69); a rectangular plug (611) is inserted into the front end of the box body (1); the rectangular plug (611) is located directly in front of the filter element (610); and the bottom of the box body (1) is provided with a water tank (69); A water storage chamber (613) is provided inside, a rectangular hole (612) penetrating the water tank (69) is provided at the bottom of the water tank (69), the bottom of the rectangular hole (612) extends to the inside of the water storage chamber (613), a water pump (614) is fixedly installed on the left part of the top of the box body (1), the input end of the water pump (614) extends to the bottom of the water storage chamber (613), and the output end of the water pump (614) extends to the top of the water tank (66).

2. A fire-fighting and ventilation dual-purpose cabinet centrifugal fan according to claim 1, characterized in that: The regulating structure (7) comprises an air outlet pipe (71), wherein the air outlet pipe (71) is fixedly connected to the front end of the box body (1), and three valve leaves (72) are rotatably connected inside the air outlet pipe (71).

3. A fire-fighting and ventilation dual-purpose cabinet centrifugal fan according to claim 2, characterized in that: The tops of the three valve leaves (72) extend out of the top of the air outlet pipe (71), and the tops of the three valve leaves (72) are fixedly connected to a worm gear (73). The top of the air outlet pipe (71) is fixedly connected to a rectangular box (77). The right end of the rectangular box (77) is rotatably connected to a worm (74). The outer wall of the worm (74) is meshingly connected to the outer walls of the three worm gears (73). The left end of the worm (74) is fixedly connected to a second transmission assembly (76). The second transmission assembly (76) includes two gears and a toothed belt. The left end of the worm (74) is fixedly connected to the right end of the gear located in the front. A second motor (75) is fixedly installed on the left part of the rectangular box (77). The output end of the second motor (75) is fixedly connected to the right end of the gear located in the rear, and the outer walls of the two gears are meshingly connected to the inner wall of the toothed belt.

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