CN210769388U

CN210769388U - Axial-flow type fire-fighting high-temperature smoke exhaust fan

Info

Publication number: CN210769388U
Application number: CN201921684095.8U
Authority: CN
Inventors: 张玉杰
Original assignee: Xinjiang Juntai Electromechanical Engineering Co ltd
Current assignee: Xinjiang Juntai Electromechanical Engineering Co ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-06-16
Anticipated expiration: 2029-10-10

Abstract

The utility model discloses an axial-flow type fire-fighting high-temperature smoke exhaust fan, which comprises a shell, wherein the shell comprises an installation cavity and an exhaust channel, one side of the installation cavity is connected with the exhaust channel, the other side of the installation cavity is provided with an air inlet, the output end of a servo motor drives a second belt pulley to rotate, the second belt pulley drives a first belt pulley to rotate through a belt, so that an impeller is driven to rotate through a rotating shaft, smoke is sucked from the air inlet and is exhausted through the exhaust channel; evenly be equipped with the one end of telescopic link on the interior bottom surface of installation cavity, the quantity of telescopic link is 4, the other end of telescopic link all with mounting panel fixed connection, the outside cover of telescopic link has first spring, through setting up the second grade shock attenuation, has reduced the vibrations of servo motor during operation, makes impeller pivoted more steady, has guaranteed smoke exhaust efficiency, has avoided the damage that vibrations caused to servo motor itself simultaneously, has improved life, has reduced in addition because the noise that servo motor vibrations produced.

Description

Axial-flow type fire-fighting high-temperature smoke exhaust fan

Technical Field

The utility model relates to a smoke exhaust fan technical field, concrete field is an axial-flow type fire control high temperature smoke exhaust fan.

Background

The smoke exhaust fan is mainly applied to the interiors of high-rise buildings, underground garages, subways, tunnels and the like, is used for fire-fighting smoke exhaust and air supply and exhaust ventilation, can be divided into a centrifugal type and an axial type according to the working mode of the smoke exhaust fan, has the airflow direction of the axial type fan and the axial direction of the fan blades in the same direction, and has the advantage of strong air exhaust effect.

But because axial-flow type smoke exhaust fan is at the in-process of discharging fume, the motor rotational speed accelerates, and motor vibrations have seriously influenced smoke exhaust efficiency, have also reduced the life of motor simultaneously, and the workplace is many in a relatively sealed not smooth space that ventilates in addition, and axial-flow type smoke exhaust fan during operation sound is huge, and the noise can be propagated in airtight space for a long time, is difficult to eliminate. The communication between people is influenced to the noise is too big, still influences people's physical and mental health, therefore we propose an axial-flow type fire control high temperature smoke exhaust fan.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an axial-flow type fire control high temperature smoke exhaust fan to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an axial-flow type fire-fighting high-temperature smoke exhaust fan comprises a shell, wherein the shell comprises an installation cavity and an exhaust channel, one side of the installation cavity is connected with the exhaust channel, the other side of the installation cavity is provided with an air inlet, one end of a telescopic rod is uniformly arranged on the inner bottom surface of the installation cavity, the number of the telescopic rods is 4, the other end of each telescopic rod is fixedly connected with a mounting plate, a first spring is sleeved outside each telescopic rod, one end of the first spring is connected with the inner bottom surface of the installation cavity, the other end of the first spring is connected with the lower surface of the mounting plate, columnar cylinders are symmetrically arranged on the inner bottom surface of the installation cavity in a bilateral symmetry manner, sliding blocks are symmetrically arranged in the columnar cylinders in a sliding manner in the bilateral symmetry manner, a second spring is arranged between the two sliding blocks, one end of a connecting rod is hinged to one side of each sliding block close, the upper surface of mounting panel is equipped with the fixed plate, the middle part of fixed plate is rotated and is equipped with the pivot, the one end that the pivot is close to the passageway of airing exhaust is equipped with the impeller, the other end of pivot is equipped with first belt pulley, one side that the upper surface of mounting panel is close to the air intake is equipped with servo motor, servo motor's output end key is connected with the second belt pulley, the second belt pulley passes through belt and first belt pulley transmission.

Preferably, the opening end of the air exhaust channel is arranged in a downward inclined mode and is an arc-shaped pipe.

Preferably, the opening of the air exhaust channel is provided with a louver board, and blades of the louver board are arranged in a downward inclined mode.

Preferably, a filter screen is arranged in the exhaust channel.

Preferably, a silencer is arranged in the exhaust channel and comprises a plurality of silencing plates arranged between the inner side walls of the exhaust channel, and the silencing plates are arranged in the exhaust channel in a multi-row staggered manner.

Preferably, the silencing plate comprises two layers of guard plates and a silencing layer arranged between the two layers of guard plates, and a plurality of vent holes arranged along the length direction of the air exhaust channel are uniformly formed in the guard plates.

Preferably, the top wall and the bottom wall of the exhaust channel are respectively provided with one end of a vertical plate, and the other end of the vertical plate is respectively connected to the silencing plate at the corresponding position.

Compared with the prior art, the beneficial effects of the utility model are that: an axial-flow fire-fighting high-temperature smoke exhaust fan is characterized in that an output end of a servo motor drives a second belt pulley to rotate, the second belt pulley drives a first belt pulley to rotate through a belt, so that an impeller is driven to rotate through a rotating shaft, smoke is sucked from an air inlet and is exhausted through an exhaust channel; when the servo motor works to generate vibration, the mounting plate moves downwards under the action of the vibration force, and the first spring is stressed and compressed to generate elastic force for buffering; when the mounting panel downstream, drive the connecting rod downstream, the slider in driving a column section of thick bamboo is close to each other when the connecting rod downstream is close to, the compression of second spring atress this moment, and produce elasticity and cushion, through setting up the second grade shock attenuation, the vibrations of servo motor during operation have been reduced, make impeller pivoted more steady, smoke exhaust efficiency has been guaranteed, the damage of vibrations to servo motor itself caused has been avoided simultaneously, service life is prolonged, in addition, the noise that produces because servo motor vibrations has been reduced.

Drawings

FIG. 1 is a schematic sectional view of the embodiment 1;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is a schematic front view showing the structure of embodiment 1;

fig. 4 is a schematic front view of the acoustical panel of embodiment 2;

fig. 5 is a front sectional structural view of embodiment 2.

In the figure: the device comprises a shell, a mounting cavity, an exhaust channel, a telescopic rod, a mounting plate, a first spring, a cylindrical barrel, a sliding block, a second spring, a connecting rod, a fixing plate, a rotating shaft, an impeller, a first belt pulley, a servo motor, a second belt pulley, a louver 15, a filter screen 16, a silencing plate 17, a protective plate 1701, a silencing layer 1702, a vent 1703 and a vertical plate 18, wherein the shell is 1, the mounting cavity is 101, the exhaust channel is 102, the telescopic rod is 2, the mounting plate is 3, the first spring is 4, the cylindrical barrel is 5, the sliding block is 6, the second spring is 7, the connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Embodiment 1, please refer to fig. 1-3, this embodiment provides a technical solution: an axial-flow type fire-fighting high-temperature smoke exhaust fan comprises a shell 1, wherein the shell 1 comprises an installation cavity 101 and an exhaust channel 102, one side of the installation cavity 101 is connected with the exhaust channel 102, an air inlet is formed in the other side of the installation cavity 101, an output end of a servo motor 13 drives a second belt pulley 14 to rotate, the second belt pulley 14 drives a first belt pulley 12 to rotate through a belt, and therefore an impeller 11 is driven to rotate through a rotating shaft 10, smoke is sucked from the air inlet and is exhausted through the exhaust channel 102; evenly be equipped with the one end of telescopic link 2 on the interior bottom surface of installation cavity 101, the quantity of telescopic link 2 is 4, the other end of telescopic link 2 all with mounting panel 3 fixed connection, the outside cover of telescopic link 2 has first spring 4, the one end of first spring 4 is connected with the interior bottom surface of installation cavity 101, the other end of first spring 4 is connected with the lower surface of mounting panel 3, bilateral symmetry is equipped with a column section of thick bamboo 5 on the interior bottom surface of installation cavity 101, bilateral symmetry slides in the column section of thick bamboo 5 and is equipped with slider 6, two be equipped with second spring 7 between the slider 6, the one side that slider 6 is close to a column section of thick bamboo 5 nozzle articulates the one end of connecting rod 8 respectively, the other end of connecting rod 8 all articulates with the lower surface of mounting panel 3, the upper surface of mounting panel 3 is equipped with fixed plate 9, when servo motor 13 work produced vibrations, the mounting plate 3 moves downwards under the action of the vibration force, and the first spring 4 is compressed under the force and generates elastic force for buffering; when the mounting plate 3 moves downwards, the connecting rod 8 is driven to move downwards, the connecting rod 8 moves downwards and simultaneously drives the sliding blocks 6 in the cylindrical barrel 5 to approach each other, at the moment, the second spring 7 is compressed under stress and generates elastic force for buffering, and by setting secondary damping, the vibration of the servo motor 13 during working is reduced, so that the impeller 11 rotates more stably, the smoke exhaust efficiency is ensured, meanwhile, the damage of the vibration to the servo motor 13 is avoided, the service life is prolonged, and in addition, the noise generated by the vibration of the servo motor 13 is reduced; the middle part of fixed plate 9 rotates and is equipped with pivot 10, the one end that pivot 10 is close to exhaust passageway 102 is equipped with impeller 11, the other end of pivot 10 is equipped with first belt pulley 12, the one side that the upper surface of mounting panel 3 is close to the air intake is equipped with servo motor 13, servo motor 13's output end key connection has second belt pulley 14, second belt pulley 14 passes through the belt and first belt pulley 12 transmission.

Specifically, the opening end of the exhaust duct 102 is inclined downward and is an arc-shaped pipe.

Specifically, the opening part of air exhaust channel 102 is provided with louver 15, louver 15's blade downward sloping setting sets up louver 15 and with the blade downward sloping, can further prevent the entering of rainwater, and when the rainwater fell on louver 15's blade, can follow the downward landing of blade to ground, protects inside circuit and servo motor 13.

Specifically, the filter screen 16 is disposed in the exhaust channel 102, so that external insects or impurities can be prevented from entering the exhaust channel 102 and affecting the normal operation of the device.

The working principle is as follows: the output end of the servo motor 13 of the utility model drives the second belt pulley 14 to rotate, the second belt pulley 14 drives the first belt pulley 12 to rotate through the belt, thereby driving the impeller 11 to rotate through the rotating shaft 10, sucking the cigarette from the air inlet and discharging the cigarette through the air exhaust channel; when the servo motor 13 works to generate vibration, the mounting plate 3 moves downwards under the action of the vibration force, and the first spring 4 is compressed under the force and generates elastic force for buffering; when mounting panel 3 downstream, drive connecting rod 8 downstream, connecting rod 8 downstream drives slider 6 in the column section of thick bamboo 5 towards being close to each other in the time of, second spring 7 atress compression this moment, and produce elasticity and cushion, through setting up the second grade shock attenuation, the vibrations of servo motor 13 during operation have been reduced, make impeller 11 pivoted more steady, the efficiency of discharging fume has been guaranteed, the damage of vibrations to servo motor 13 itself has been avoided simultaneously, the service life is prolonged, in addition, the noise of producing because servo motor 13 vibrations has been reduced.

Embodiment 2, please refer to fig. 4-5, and the present embodiment provides an axial-flow fire-fighting high-temperature smoke exhaust fan, which is different from embodiment 1 in that a silencer is disposed to reduce noise during smoke exhaust and avoid noise pollution, and the structure not mentioned in the present embodiment is described in embodiment 1.

A silencer is arranged in the exhaust channel 102, the silencer comprises a plurality of silencing plates 17 arranged between the inner side walls of the exhaust channel 102, the silencing plates 17 are arranged in the exhaust channel 102 in a multi-row staggered manner, each silencing plate 17 comprises two layers of guard plates 1701 and a silencing layer 1702 arranged between the two layers of guard plates 1701, a plurality of vent holes 1703 arranged along the length direction of the exhaust channel 102 are uniformly formed in the guard plates 1701, one ends of vertical plates 18 are respectively arranged on the top wall and the bottom wall of the exhaust channel 102, and the other ends of the vertical plates 18 are respectively connected to the silencing plates 17 at corresponding positions; when passing through the silencer, the airflow flows towards two sides along the cambered surface of the silencing plates 17, enters the next row of silencing plates 17, flows along the surface of the next row of silencing plates 17 and passes through gaps among the silencing plates 17, and when noise is transmitted along the silencing plates 17, the transmission path is increased, the noise is refracted and rubbed continuously, sound energy is converted into heat energy to be dissipated, so that the noise is attenuated gradually along with the distance when being transmitted along the silencer.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an axial-flow type fire control high temperature smoke exhaust fan, includes shell (1), its characterized in that: the air exhaust device is characterized in that the shell (1) comprises an installation cavity (101) and an air exhaust channel (102), one side of the installation cavity (101) is connected with the air exhaust channel (102), an air inlet is formed in the other side of the installation cavity (101), one end of each telescopic rod (2) is uniformly arranged on the inner bottom surface of the installation cavity (101), the number of the telescopic rods (2) is 4, the other ends of the telescopic rods (2) are fixedly connected with the installation plate (3), first springs (4) are sleeved on the outer sides of the telescopic rods (2), one ends of the first springs (4) are connected with the inner bottom surface of the installation cavity (101), the other ends of the first springs (4) are connected with the lower surface of the installation plate (3), columnar cylinders (5) are symmetrically arranged on the left and right of the inner bottom surface of the installation cavity (101), sliders (6) are symmetrically arranged in the columnar cylinders (5) in a sliding mode, and second springs (7) are arranged between the two sliders, the one side that slider (6) are close to cylindrical section of thick bamboo (5) nozzle articulates respectively has the one end of connecting rod (8), the other end of connecting rod (8) all is articulated with the lower surface of mounting panel (3), the upper surface of mounting panel (3) is equipped with fixed plate (9), the middle part of fixed plate (9) is rotated and is equipped with pivot (10), the one end that pivot (10) are close to air exhaust passageway (102) is equipped with impeller (11), the other end of pivot (10) is equipped with first belt pulley (12), one side that the upper surface of mounting panel (3) is close to the air intake is equipped with servo motor (13), the output end key connection of servo motor (13) has second belt pulley (14), second belt pulley (14) pass through belt and first belt pulley (12) transmission.

2. The axial-flow fire-fighting high-temperature smoke exhaust fan according to claim 1, characterized in that: the opening end of the air exhaust channel (102) is arranged in a downward inclined mode and is an arc-shaped pipe.

3. The axial-flow fire-fighting high-temperature smoke exhaust fan of claim 2, characterized in that: the opening of the air exhaust channel (102) is provided with a louver board (15), and blades of the louver board (15) are arranged in a downward inclined mode.

4. The axial-flow fire-fighting high-temperature smoke exhaust fan according to claim 1, characterized in that: a filter screen (16) is arranged in the exhaust channel (102).

5. The axial-flow fire-fighting high-temperature smoke exhaust fan according to claim 1, characterized in that: a silencing device is arranged in the air exhaust channel (102), the silencing device comprises a plurality of silencing plates (17) arranged between the inner side walls of the air exhaust channel (102), and the silencing plates (17) are arranged in the air exhaust channel (102) in a multi-row staggered mode.

6. The axial-flow fire-fighting high-temperature smoke exhaust fan according to claim 5, characterized in that: the silencing plate (17) comprises two layers of protection plates (1701) and a silencing layer (1702) arranged between the two layers of protection plates (1701), wherein a plurality of vent holes (1703) arranged along the length direction of the air exhaust channel (102) are uniformly formed in the protection plates (1701).

7. The axial-flow fire-fighting high-temperature smoke exhaust fan of claim 6, characterized in that: one ends of vertical plates (18) are respectively arranged on the top wall and the bottom wall of the air exhaust channel (102), and the other ends of the vertical plates (18) are respectively connected to the sound-absorbing plates (17) at corresponding positions.