CN210919534U

CN210919534U - Ventilating structure of exhaust fan

Info

Publication number: CN210919534U
Application number: CN201921817706.1U
Authority: CN
Inventors: 张勇; 张欣
Original assignee: Zhengzhou Zhengsheng Environmental Protection Engineering Co ltd
Current assignee: Zhengzhou Zhengsheng Environmental Protection Engineering Co ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-07-03
Anticipated expiration: 2029-10-23

Abstract

The utility model relates to an exhaust fan ventilation structure, it includes the exhaust fan, and the exit linkage of exhaust fan has the ventilation pipe, and the one end that the exhaust fan was kept away from to the ventilation pipe is connected with rain-proof shutter, rain-proof shutter includes window frame, casement and baffle, and the casement has a plurality ofly, every all fixed pivot that is provided with on the casement, the pivot level sets up, and the end connection of pivot has drive arrangement, and the pivot is rotated and is connected on the window frame, the baffle is located the upper and lower side of casement, and the casement rotates to vertical position, seals between casement and the baffle. The utility model discloses have and close rain-proof shutter, reduce outdoor and indoor heat exchange's effect.

Description

Ventilating structure of exhaust fan

Technical Field

The utility model relates to a lead to technical field of engineering, especially relates to an exhaust fan ventilation structure.

Background

Heating and ventilation engineering, generally, heating engineering, ventilation and air conditioning engineering, boiler and boiler room equipment engineering; the ventilation and air conditioning engineering comprises the installation and construction of air conditioning equipment and the installation and construction of ventilation pipelines and pipeline accessories, wherein the pipeline accessories comprise an air valve, a control system, an air outlet, a distribution pipeline and a refrigerant pipeline. One end of the ventilation pipeline is connected with the exhaust fan, and the other end of the ventilation pipeline is connected with the rainproof louver.

Rain-proof shutter among the prior art is fixed usually, can ventilate to fixed rain-proof leaf page or leaf window, when not needing the ventilation, and rain-proof shutter still is in the state of opening, if when chilly winter, rain-proof shutter does not close, makes ventilation structure natural draft to cause the cold air to enter into indoor easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an exhaust fan ventilation structure, it has closes rain-proof shutter, reduces outdoor and indoor heat exchange's effect.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides an exhaust fan ventilation structure, includes the exhaust fan, the exit linkage of exhaust fan has the ventilation pipe, and the one end that the exhaust fan was kept away from to the ventilation pipe is connected with rain-proof shutter, rain-proof shutter includes window frame, window leaf and baffle, and the window leaf has a plurality ofly, every all fixed pivot that is provided with on the window leaf, the pivot level sets up, and the end connection of pivot has drive arrangement, and the pivot is rotated and is connected on the window frame, the baffle is located the upper and lower side of window leaf, and the window leaf rotates to vertical position, seals between window leaf and the baffle.

Through adopting above-mentioned technical scheme, during the use, the exhaust fan passes through the ventilation pipe and is connected with rain-proof shutter, exhaust fan exhaust wind passes through rain-proof shutter and reachs outdoors, when the exhaust fan is out of work, drive arrangement is connected in the pivot on the louver, drive arrangement drives the pivot and rotates, make the shutter rotate the position of closing, and set up the baffle at the upper and lower side of every louver, form seal structure between louver and the baffle, thereby can use rain-proof shutter to close the ventilation pipe, reduce outdoor and indoor heat exchange.

The utility model discloses further set up to: the upper side and the lower side of the window leaf are both provided with a sealing strip, and the sealing strips are fixed on the window leaf.

Through adopting above-mentioned technical scheme, set up the sealing strip on the louver, the sealing strip is when rotating along with the louver, and the leakproofness is better between sealing strip and the baffle.

The utility model discloses further set up to: the driving device comprises a driven wheel and a driving wheel, wherein one driven wheel is installed at the end part of the rotating shaft, the driving wheel is connected with a driving motor, and a driving belt is installed on the driving wheel and all the driven wheels.

Through adopting above-mentioned technical scheme, driving motor drives the action wheel, and the action wheel passes through the drive belt to be connected from the driving wheel with every to make a plurality of follow driving wheels open the casement simultaneously and ventilate.

The utility model discloses further set up to: the driving wheel and the driven wheel are both wound by at least one circle, the driving belt is a circular belt, and the driving wheel and the driven wheel are I-shaped wheels.

Through adopting above-mentioned technical scheme, the action wheel all twines at least round on the follow driving wheel to the drive belt is bigger at driven in-process and action wheel and the frictional force from between the driving wheel, makes things convenient for the action wheel to drive from the driving wheel rotation.

The utility model discloses further set up to: the driving wheel and the driven wheel are provided with a belt groove, the belt groove is spiral, and a driving belt is wound in the belt groove.

Through adopting above-mentioned technical scheme, the drive belt is located the trough of belt, and the drive belt is to the action wheel with from the driven in-process of driving, reduce the wearing and tearing of drive belt self, the distance that the drive belt can drive is more accurate simultaneously.

The utility model discloses further set up to: the output end of the driving motor is coaxially and fixedly provided with a worm, the worm is meshed with a worm wheel, a driving shaft is arranged in the center of the worm wheel, and the driving wheel is coaxially fixed on the driving shaft.

Through adopting above-mentioned technical scheme, driving motor drives the worm, and the worm meshes the worm wheel, and the worm wheel drives the driving shaft and rotates, and driving motor passes through worm and worm wheel and improves driving motor's output torque to make the rotation of louver more steady.

The utility model discloses further set up to: the transmission belt is connected with a tensioning wheel, the tensioning wheel is connected with a tensioning device, and the tensioning device is installed on the window frame.

Through adopting above-mentioned technical scheme, be connected with the tight pulley that rises on the drive belt, the tight pulley that rises passes through overspeed device tensioner with the drive belt tensioning to reduce the drive belt and skid on action wheel and follow driving wheel.

The utility model discloses further set up to: the tensioning device comprises a wheel frame, a guide sleeve and a guide rod, the guide rod is inserted into the guide sleeve, one end, far away from the guide sleeve, of the guide rod is fixed to the wheel frame, a tensioning wheel is rotatably connected to the wheel frame, one end, far away from the guide sleeve, of the guide rod is provided with a first separation blade, a second separation blade is arranged at the end portion of the guide sleeve, a spring is arranged between the first separation blade and the second separation blade, one end, far away from the guide rod, of the guide sleeve is in threaded connection with a bolt, and the.

Through adopting above-mentioned technical scheme, rotate the uide bushing, uide bushing and bolt threaded connection, the uide bushing is to the direction motion back of bolt, and the spring receives the extrusion increase of separation blade one and separation blade two to the elasticity increase of spring, the elasticity of spring provide power for tight pulley tensioning drive belt that rises, and then carry out the tensioning to the drive belt, and can conveniently adjust the tensile force through rotating the uide bushing.

To sum up, the utility model discloses a beneficial technological effect does:

1. when the exhaust fan does not work, the rotating shaft on the louver is connected with the driving device, the driving device drives the rotating shaft to rotate, so that the louver rotates to a closed position, the upper side and the lower side of each louver are provided with the partition plates, and a sealing structure is formed between each louver and each partition plate, so that the rainproof louver can be closed, and the heat exchange between the outdoor space and the indoor space is reduced;

2. at least one circle of driving wheel and driven wheel is wound, so that the friction between the driving belt and the driving wheel and the driven wheel is larger in the transmission process, and the driving wheel can drive the driven wheel to rotate conveniently;

3. the driving belt is connected with the tension wheel, and the tension wheel tensions the driving belt through the tension device, so that the driving belt is prevented from slipping on the driving wheel and the driven wheel.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the overall structure of the rain-proof window;

FIG. 3 is a schematic cross-sectional view taken along the line A-A in FIG. 2;

FIG. 4 is a schematic diagram of the distribution position structure of the driving wheel and the driven wheel;

FIG. 5 is a schematic view of the overall construction of the driven wheel;

FIG. 6 is a schematic view of the winding configuration of the belt;

fig. 7 is a schematic view of the tensioner.

In the figure, 1, an exhaust fan; 2. a vent pipe; 3. a rain-proof shutter; 31. a window frame; 32. a cavity; 33. a louver; 34. a rotating shaft; 35. a sealing strip; 36. a partition plate; 4. a drive device; 41. a driven wheel; 42. a driving wheel; 43. a drive shaft; 44. a worm; 45. a drive motor; 46. a transmission belt; 5. a belt groove is formed; 6. a tension wheel; 7. an idler pulley; 8. a tensioning device; 81. a wheel carrier; 82. a guide sleeve; 83. a guide bar; 84. a first baffle plate; 85. a second blocking piece; 86. a spring; 87. and (4) bolts.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses an exhaust fan ventilation structure, including exhaust fan 1, exhaust fan 1 fixed mounting is indoor, and exhaust fan 1's air outlet is connected with

ventilation pipe

2, and 2 unions of ventilation pipe are on exhaust fan 1, and the other end is connected with rain-proof shutter 3, and rain-proof shutter 3 is fixed on the wall body, when exhaust fan 1 outwards, discharges outdoors from rain-proof shutter 3 through ventilation pipe 2.

Referring to fig. 2 and 3, the rainproof louver 3 includes a window frame 31, the window frame 31 is a hollow structure and forms a cavity 32 therein, the window frame 31 is rectangular as a whole, three louvers 33 are disposed in the middle of the window frame 31, the three louvers 33 are horizontally disposed, each louver 33 is provided with a rotating shaft 34, the rotating shafts 34 are horizontally disposed, two ends of each rotating shaft 34 are rotatably connected to the window frame 31 and inserted into the cavity 32, a driving device 4 is connected to the rotating shafts 34, and the driving device 4 is used for driving the rotating shafts 34 to rotate so as to drive the louvers 33 to rotate. The partition plates 36 are respectively arranged at the upper side and the lower side of the louver 33, and the partition plates 36 gradually deviate towards the direction of the louver 33 in the side edge running direction of the corresponding louver 33, so that when the partition plates 36 rotate towards the closing direction, the sealing between the louver 33 and the partition plates 36 is tighter. When the louver 33 is in a vertical state, the partition plate 36 and the louver 33 are sealed, the sealing strips 35 are mounted on the upper side edge and the lower side edge of the louver 33 respectively, the sealing strips 35 are made of rubber materials, the sealing strips 35 are fixed on the louver 33, and in the process that the sealing strips 35 move along with the louver 33, the sealing strips 35 are extruded and deformed by the louver 33, so that the sealing between the louver 33 and the partition plate 36 is better.

Referring to fig. 3 and 4, the driving device 4 includes a driven pulley 41 and a driving pulley 42, and the driving pulley 42 and the driven pulley 41 are spool wheels. A driven wheel 41 is arranged at the end part of each rotating shaft 34, a driving shaft 43 is arranged in the cavity 32, the driving shaft 43 is rotatably connected to the window frame 31, the driving shaft 43 is arranged in parallel with the rotating shaft 34, a worm wheel is coaxially and fixedly arranged on the driving shaft 43, the worm wheel is connected with a worm 44, the worm 44 is meshed with the worm wheel, a driving motor 45 is connected to the worm 44, the driving motor 45 is fixed in the cavity 32 of the window frame 31, and the worm 44 is coaxially fixed at the output end of the driving motor 45. The driving wheel 42 is coaxially and fixedly connected to the driving shaft 43, the driving wheel 42 and all the driven wheels 41 are connected with a transmission belt 46, the transmission belt 46 is a circular belt, and the transmission belt 46 is wound on the driving wheel 42 and the driven wheels 41 for at least one circle. Combine fig. 5, all offer the trough of belt 5 that is used for twining drive belt 46 on action wheel 42 and follow driving wheel 41, trough of belt 5 is the spiral, conveniently places drive belt 46 in trough of belt 5, reduces the relative wearing and tearing of drive belt 46 self.

Referring to fig. 6 and 7, a tension pulley 6 and an idler pulley 7 are connected to the transmission belt 46, the idler pulley 7 is rotatably connected to the window frame 31, the tension pulley 6 is connected to a tension device 8, and the tension pulley 6 pulls the transmission belt 46 under the action of the tension device 8 to tension the transmission belt 46. The tensioning device 8 comprises a wheel frame 81, a guide sleeve 82 and a guide rod 83, one end of the guide rod 83 is inserted into the guide sleeve 82, one end of the guide rod 83, which extends out of the guide sleeve 82, is fixed on the wheel frame 81, the guide rod 83 is vertically arranged, the tensioning wheel 6 is rotatably connected to the wheel frame 81, the upper end of the guide rod 83 is inserted into the guide sleeve 82 and is fixedly provided with a first blocking piece 84, a second blocking piece 85 is arranged at the lower end of the guide sleeve 82, a spring 86 is arranged between the first blocking piece 84 and the second blocking piece 85, the spring 86 is arranged in the guide sleeve 82, one end of the guide sleeve 82, which is far away from the guide rod 83, is in threaded connection with a bolt 87, the bolt 87 is fixed on the window frame 31, and by rotating the guide sleeve 82, the length of the guide sleeve 82, which is connected to the.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an exhaust fan ventilation structure, includes exhaust fan (1), the exit linkage of exhaust fan (1) has ventilation pipe (2), and the one end that exhaust fan (1) was kept away from in ventilation pipe (2) is connected with rain-proof shutter (3), its characterized in that: rain-proof shutter (3) are including window frame (31), casement (33) and baffle (36), and casement (33) have a plurality ofly, every all fixed being provided with a pivot (34) on casement (33), pivot (34) level sets up, and the end connection of pivot (34) has drive arrangement (4), and pivot (34) rotate to be connected on window frame (31), baffle (36) are located the upper and lower side of casement (33), and casement (33) rotate to vertical position, and are sealed between casement (33) and baffle (36).

2. A ventilating structure of a discharge fan in accordance with claim 1, wherein: the upper side and the lower side of the window leaf (33) are both provided with a sealing strip (35), and the sealing strip (35) is fixed on the window leaf (33).

3. A ventilating structure of a ventilating fan according to claim 1 or 2, wherein: drive arrangement (4) are including following driving wheel (41) and action wheel (42), every the tip of pivot (34) all installs one and follows driving wheel (41), and action wheel (42) are connected with driving motor (45), install a driving belt (46) on action wheel (42) and all follow driving wheel (41).

4. A ventilating structure of a discharge fan in accordance with claim 3, wherein: the driving wheel (42) and the driven wheel (41) are wound by the transmission belt (46) for at least one circle, the transmission belt (46) is a circular belt, and the driving wheel (42) and the driven wheel (41) are all I-shaped wheels.

5. A ventilating structure of a discharge fan according to claim 4, wherein: drive wheel (42) and all seted up trough of belt (5) from driving wheel (41), trough of belt (5) are the spiral, are used for winding drive belt (46) in trough of belt (5).

6. A ventilating structure of a discharge fan according to claim 4, wherein: the output end of the driving motor (45) is coaxially and fixedly provided with a worm (44), the worm (44) is meshed with a worm wheel, a driving shaft (43) is arranged in the center of the worm wheel, and the driving wheel (42) is coaxially fixed on the driving shaft (43).

7. A ventilating structure of a ventilating fan in accordance with any one of claims 4 to 6, wherein: the transmission belt (46) is connected with a tension wheel (6), the tension wheel (6) is connected with a tensioning device (8), and the tensioning device (8) is installed on the window frame (31).

8. A ventilating structure of a discharge fan in accordance with claim 7, wherein: the tensioning device (8) comprises a wheel frame (81), a guide sleeve (82) and a guide rod (83), the guide rod (83) is inserted into the guide sleeve (82), one end, far away from the guide sleeve (82), of the guide rod (83) is fixed to the wheel frame (81), the tensioning wheel (6) is rotatably connected to the wheel frame (81), one end, far away from the guide sleeve (82), of the guide rod (83) is provided with a first blocking piece (84), a second blocking piece (85) is arranged at the end part of the guide sleeve (82), a spring (86) is arranged between the first blocking piece (84) and the second blocking piece (85), one end, far away from the guide rod (83), of the guide sleeve (82) is in threaded connection with a bolt (87), and the bolt (87) is fixed to the window frame (31).