KR20210133690A - Ventilating fan for in door parking lot - Google Patents

Abstract

The present invention relates to a directly-connected parking lot fan. The directly-connected parking lot fan includes: a fan duct having both sides open; a grill mesh detachably combined with an opening on one side of the fan duct through a plurality of holders; a propeller including a plurality of propeller wings placed concentrically, and a wing fixing cap fixing the plurality of propeller wings in a center part of the plurality of propeller wings; a propeller protection casing for duct reinforcement allowing the propeller to be placed therein, while combined with an inner wall of the fan duct to reinforce the fan duct while protecting the propeller; a motor generating motive power for the rotation of the propeller; a decelerator connected with the motor and decelerating the rotation power of the motor; and a motion delivery part directly connected with the decelerator and the propeller while directly delivering the rotation power through the decelerator as a rotating motion of the propeller. Therefore, the present invention is capable of considerably increasing durability as compared to an existing case.

Description

Ventilating fan for in door parking lot

The present invention relates to a direct-connected parking lot fan, and more particularly, since the motor is directly connected to the propeller, the structure can be simplified, which can contribute to cost reduction, and also, by applying the reinforcement structure, durability is higher than that of the prior art. It's about direct car park fans that can be significantly higher.

In a typical parking lot, particularly an indoor parking lot, the air may be polluted by harmful gases such as carbon monoxide (CO) contained in the exhaust gas of the vehicle.

The concentration of harmful gas is set below the legal standard (50PPM). When the concentration of noxious gas exceeds the above-mentioned predetermined reference value, since it is very harmful to the human body, a fan installed in the parking lot is driven to ventilate.

As such, there are currently various types of parking lot fans used for ventilating the air in the parking lot, and a representative one is the parking lot fan disclosed in Korean Patent Office Application No. 10-1996-0014923.

A picture of a parking lot fan disclosed in the above publication is disclosed in FIGS. 1 and 2 . Referring to this, the conventional parking lot fan includes a propeller 4 that ventilates indoor air while rotating by the power of the motor 3 . At this time, the power of the motor 3 is transmitted to the propeller 4 through the driving and driven pulleys 5 and 6 and the belt 4 .

Accordingly, when the motor 3 operates, the rotational power of the motor 3 is transmitted to the propeller 4 through the driving pulley 5, the belt 4 and the driven pulley 6, and the propeller 4 rotates. Therefore, it is possible to ventilate while discharging the indoor air in the parking lot to the outside.

However, in the case of this prior art, since the power of the motor 3 is transmitted to the propeller 4 in the structure of the pulleys 5 and 6 and the belt 4, the number of parts is unnecessarily increased, making the structure complex and costly. It rises, and there is a problem with frequent breakdowns.

In addition, in the case of the prior art, considering that the strength is weak due to its structural limitations and thus the durability is inevitably reduced, there is a need to develop a technology for a direct-connected parking lot fan of a new concept that is not known before.

Korean Intellectual Property Office Application No. 10-1996-0014923

An object of the present invention is to provide a direct-connected parking lot fan that can contribute to cost reduction by simplifying the structure because the motor is directly connected to the propeller, and also having a reinforcing structure that can significantly increase the durability compared to the prior art will do

In addition, by making the support wings connected by the shutter and link coupling structure to be in a lying state when the shutter is closed and in a standing state when the shutter is opened,

At the beginning of the blowing, the shutter opens smoothly without interfering with the supply of air volume, and force is applied to keep the shutter open by the wind pressure applied to the support wing during the blowing, so that the open state can be stably maintained during the blowing.

The purpose is, the fan duct with both sides open; a grill net removably coupled to one opening of the fan duct through a plurality of holders; A propeller having a plurality of concentrically arranged propeller blades, and a blade fixing cap for fixing the plurality of propeller blades in the center of the plurality of propeller blades; a propeller protection casing for reinforcing the duct, the propeller being disposed therein and coupled to the inner wall of the fan duct to reinforce the fan duct while protecting the propeller; a motor for generating power for rotation of the propeller; a reducer connected to the motor and configured to reduce rotational power of the motor; And it is achieved by a direct-connected parking lot fan, characterized in that it is directly connected to the speed reducer and the propeller comprises a motion transmission unit that directly transmits the rotational power through the speed reducer to the rotational motion of the propeller.

The motion transmission unit may include: a shaft coupling member coupled to the reduction shaft of the speed reducer; And one end is connected to the wing fixing cap of the propeller and the other end is detachably coupled to the shaft coupling member may include a connecting member for connecting the parts.

A duct reinforcement part coupled to the fan duct between the propeller and the grill mesh and reinforcing the fan duct may be further included.

The duct reinforcing part may include: a reinforcing plate fixed to the reduction gear and having a plurality of extension arms extending toward a corner of the fan duct; a plurality of corner reinforcement bars respectively fixed to corners of the fan duct to reinforce the corners of the fan duct; and a plurality of reinforcing bars having both ends respectively coupled to the extension arms of the reinforcing plate and the corner reinforcing bars corresponding thereto.

an air volume interlocking shutter unit detachably coupled to the other opening of the fan duct but opened and closed in association with the air volume; and a plurality of unit fixing units for fixing the air volume interlocking shutter unit to the fan duct.

The air volume interlocking shutter unit includes: a plurality of rotary links axially coupled to the link connecting bar at equal intervals up and down on the rotary shaft; a plurality of shutters respectively coupled to one end of the rotary link; When the shutters are closed, they are in a lying state, but as the shutters are opened, they gradually stand up, and in a fully opened state, they are composed of support wings that are in a fully upright state.

According to the present invention, since the motor is directly connected to the propeller, the structure can be simplified, thereby contributing to cost reduction, and by applying the reinforcing structure, durability can be significantly increased compared to the prior art.

In addition, by making the support wings connected by the shutter and link coupling structure to be in a lying state when the shutter is closed and in a standing state when the shutter is opened,

At the beginning of the blowing, the shutter is gently opened without interfering with the supply of air volume, and force is applied to maintain the open state of the shutter by the wind pressure applied to the support wing during the blowing.

1 is a front view of a parking lot fan according to the prior art.
FIG. 2 is an internal side configuration view of FIG. 1 .
3 is a partially exploded perspective view of a direct-connected parking lot fan according to an embodiment of the present invention.
FIG. 4 is a rear perspective view of FIG. 3 ;
FIG. 5 is a completely exploded view of FIG. 3 .
FIG. 6 is an enlarged view of a main part of the motor region of FIG. 5 .
7 is a rear perspective view of FIG. 5 .
8 is an enlarged view of the fan duct and the air volume interlocking shutter unit.
9 is a side view of the air flow interlocking shutter unit, showing a closed state of the shutter.
10 is a side view of the air flow interlocking shutter unit, showing a state in which the shutter is opened.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them.

Meanwhile, the following description of the present invention is merely an example for structural or functional description. Therefore, the scope of the present invention should not be construed as being limited by the embodiments described in the text.

For example, since the embodiment may have various modifications and may have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea.

In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such effects, it should not be understood that the scope of the present invention is limited thereby.

The meaning of the terms described in the present invention should be understood as follows.

When a component is referred to as being “connected” or “connected” to another component, it is understood that the other component may be directly connected or connected to the other component, but other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that no other element is present in the middle. Other expressions describing the relationship between elements, such as "between" and "immediately between" or "neighboring to" and "directly adjacent to", should be interpreted similarly.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention.

The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as “comprise” or “have” are intended to designate that the described feature, number, step, operation, component, part, or combination thereof exists, and includes one or more other features or numbers. , it should be understood that it does not preclude the possibility of the presence or addition of steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present specification. does not

Hereinafter, the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in each figure indicate like elements.

Figure 3 is a partially exploded perspective view of a direct-connected parking lot fan according to an embodiment of the present invention, Figure 4 is a rear perspective view of Figure 3, Figure 5 is a completely exploded view of Figure 3, Figure 6 is an enlarged view of the main part of Figure 5, Figure 7 is a rear perspective view of Fig. 5, Fig. 8 is an enlarged view of the main part of Fig. 7, Fig. 9 is a side view of the air flow interlocking shutter unit, showing a closed state of the shutter, and Fig. 10 is a side view of the air volume interlocking shutter unit. , a diagram showing a state in which the shutter is opened.

Referring to these drawings, since the direct-connected parking lot fan 100 according to the present embodiment is a method in which the motor 151 is directly connected to the propeller 130, the structure can be simplified, thereby contributing to cost reduction, and also reinforced By applying the structure, durability may be significantly higher than that of the prior art.

The direct-connected parking lot fan 100 according to this embodiment that can provide such an effect has a fan duct 110 as an exterior structure, and the following components are assembled in the fan duct 110 for each location. .

The fan duct 110 is a duct structure with both sides open. It can be made of stainless steel material that is strong and does not corrode.

However, since the fan duct 110 must be light, it can be made thin. In this case, the rigidity may be weak.

However, since the propeller protective casing 140 and the duct reinforcement 170 for duct reinforcement are applied to the fan duct 110 as will be described later, there is no problem in providing the desired rigidity. Rather, it is possible to provide a strong product while being light in weight due to these rigid structures.

A grill net 120 is assembled in one opening of the fan duct 110 . The grill network 120 is detachably coupled to one opening of the fan duct 110 through the plurality of holders 123 .

Air generated from the propeller 130 to be described later may be discharged through the grill network 120 having a mesh structure, and with this structure, indoor air in the parking lot can be ventilated, that is, circulated. Since the grill network 120 is applied, it is also helpful for safety, and it is possible to prevent damage to internal parts, the propeller 130 or the motor 151 .

In the fan duct 110 , a propeller 130 that substantially generates wind is provided. The propeller 130 includes a plurality of propeller blades 131 arranged concentrically, and a wing fixing cap 132 for fixing the plurality of propeller blades 131 at the center of the plurality of propeller blades 131 .

The number of blades of the propeller blades 131 may be different from those shown. Accordingly, the scope of the present invention is not limited to the shape of the drawings.

A propeller protective casing 140 for duct reinforcement is provided on the outside of the propeller 130 . The propeller protective casing 140 for duct reinforcement is coupled to the inner wall of the fan duct 110 so that the propeller 130 is disposed therein.

As described above, since the propeller protective casing 140 for duct reinforcement is coupled to the inner wall of the fan duct 110 , it is possible to provide two functions of reinforcing the fan duct 110 and protecting the propeller 130 .

For reference, in the present embodiment, since the fan duct 110 has a rectangular duct structure, the propeller protective casing 140 for duct reinforcement also has a rectangular shape corresponding thereto. However, if the fan duct 110 has a circular duct structure, the propeller protective casing 140 for duct reinforcement may also be formed in a circular shape to correspond thereto. Accordingly, the scope of the present invention is not limited to the shape of the drawings.

A motor 151 for generating power for the rotation of the propeller 130 is substantially provided in the fan duct 110 . In addition, a speed reducer 152 for decelerating the rotational power of the motor 151 is connected to the motor 151 . The motor 151 may be applied to various things such as a servo motor.

The motion transmission unit 160 is coupled to the speed reducer 152 and the propeller 130 . The motion transmission unit 160 is directly connected to the reducer 152 and the propeller 130 , and serves to directly transmit the rotational power through the reducer 152 to the rotational motion of the propeller 130 .

This motion transmission unit 160 has a shaft coupling member 161 coupled to the reduction shaft 153 of the speed reducer 152 , one end of which is connected to the wing fixing cap 132 of the propeller 130 , and the other end of which is coupled to the shaft. It includes a connection member 162 that is detachably coupled to the member 161 to connect the parts.

When the motor 151 and the reducer 152 are directly connected to the propeller 130 as in this embodiment, the structure can be simplified, which can contribute to cost reduction, and the durability is significantly higher than the conventional one by applying the reinforcement structure. can be elevated

In the direct-connected parking lot fan 100 of this embodiment, a duct reinforcement unit 170 is further provided as a means for reinforcing the structural rigidity of the fan duct 110 .

The duct reinforcement unit 170 is coupled in the fan duct 110 between the propeller 130 and the grill mesh 120 , and serves to reinforce the structural rigidity of the fan duct 110 .

The duct reinforcing part 170 includes a reinforcing plate 171 fixed to the speed reducer 152 and having a plurality of extension arms 172 extending toward the corner of the fan duct 110 , and at the corner of the fan duct 110 . A plurality of corner reinforcing bars 173 each fixed to reinforce the corners of the fan duct 110, and a plurality of end portions coupled to the extension arms 172 of the reinforcing plate 171 and the corresponding corner reinforcing bars 173, respectively. A reinforcing bar 174 may be included.

As such, since the duct reinforcement unit 170 is applied to the fan duct 110 , it is possible to reinforce the structural rigidity of the fan duct 110 , which helps to increase the durability of the direct-connected parking lot fan 100 . In particular, since the duct reinforcing part 170 is a prefabricated structure, it is advantageous for maintenance, and there is an advantage in that the maintenance cost is reduced because only the unit parts need to be exchanged.

On the other hand, the air volume interlocking shutter unit 180 is further applied to the direct-connected parking lot fan 100 of this embodiment.

The air volume interlocking shutter unit 180 is a device that is detachably coupled to the other opening of the fan duct 110 and opens and closes in association with the air volume. A plurality of unit fixing rods 190 may be used to fix the air volume interlocking shutter unit 180 to the fan duct 110 .

The air volume interlocking shutter unit 180 includes a plurality of rotation links 183 axially coupled to the link connection bar 184 on the rotation shaft 182 at equal intervals up and down; a plurality of shutters 181 each coupled to one end of the rotary link 183; When the shutters 181 are closed, they are in a lying state, but as the shutters are opened, they gradually stand up, and in a fully opened state, the support wings 185 are in a fully upright state.

Accordingly, the shutters 181 may be opened when the air volume is strong, and may be closed again when the air volume is weak. Although not shown in detail in the drawings, it may be desirable to automatically close the shutters 181 when a spring (not shown) is applied to the air flow interlocking shutter unit 180 and the air volume is weakened.

In the shutter 181, since the upper end is curved inwardly and the lower end is curved outwardly, the ends of the shutters 181 can be completely closed as shown in FIG. is configured to

During the fan operation, the lower end of the support blade 185 may have a curved shape so that the shutter can be well maintained by the wind pressure applied to the support blade 185 .

The operation process of the device of the present invention configured as described above will be described as follows.

9 is a state before the fan is operated, and since no wind pressure is applied to the shutter 181 , the shutters 181 are in a completely closed state and the support wings 185 are in a lying state.

10 shows a state in which the fan is in operation, and when wind pressure is applied to the shutter 181 , the rotation link 183 receives a clockwise rotational force about the rotation shaft 182 , so that the shutter 181 is opened. wind is blown out

At this time, since the support wing 185 rotates together with the rotation link 183 on the rotation shaft 182 , when the shutter 181 is completely opened, it is in a standing state.

In this way, when the support wing 185 is fully installed, the wind pressure will be entirely received, and the shutter 4 may stably maintain the open state during the blowing.

According to this embodiment, which acts based on the structure as described above, since the motor 151 is directly connected to the propeller 130, the structure can be simplified, thereby contributing to cost reduction, and the reinforcing structure is By being applied, it is possible to significantly increase the durability compared to the prior art.

As such, the present invention is not limited to the described embodiments, and it is apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Accordingly, it should be said that such modifications or variations fall within the scope of the claims of the present invention.

100: direct-connected parking lot fan 110: fan duct
120: grill net 123: holder
130: propeller 131: propeller wing
132: wing fixing cap 140: duct reinforcement propeller protective casing
151: motor 152: reducer
153: reduction shaft 160: motion transmission unit
161: shaft coupling member 162: connecting member
170: duct reinforcement 171: reinforcement plate
172: extension arm 173: corner reinforcement
174: reinforcement bar 180: air volume interlocking shutter unit
181: shutter 182: rotation shaft
183: rotary link 184: link connecting bar
185: support wing 190: unit fixing bar

Claims (6)

fan ducts open on both sides;
a grill net removably coupled to one opening of the fan duct through a plurality of holders;
A propeller having a plurality of concentrically arranged propeller blades, and a blade fixing cap for fixing the plurality of propeller blades in the center of the plurality of propeller blades;
a propeller protection casing for reinforcing the duct, the propeller being disposed therein and coupled to the inner wall of the fan duct to reinforce the fan duct while protecting the propeller;
a motor for generating power for rotation of the propeller;
a reducer connected to the motor and configured to reduce rotational power of the motor; and
Direct-connected parking lot fan, characterized in that it comprises a motion transmission unit that is directly connected to the speed reducer and the propeller to transmit the rotational power through the speed reducer directly to the rotational motion of the propeller.
According to claim 1,
The motion transmission unit,
a shaft coupling member coupled to the reduction shaft of the reduction gear; and
One end is connected to the wing fixing cap of the propeller and the other end is detachably coupled to the shaft coupling member to include a connecting member for connecting the parts.
According to claim 1,
The direct-connected parking lot fan, coupled to the fan duct between the propeller and the grill mesh, further comprises a duct reinforcement for reinforcing the fan duct.
4. The method of claim 3,
The duct reinforcement part,
a reinforcing plate fixed to the speed reducer and having a plurality of extension arms extending toward a corner of the fan duct;
a plurality of corner reinforcement bars respectively fixed to corners of the fan duct to reinforce the corners of the fan duct; and
A direct-connected parking lot fan, characterized in that both ends include a plurality of reinforcing bars respectively coupled to the extension arms of the reinforcing plate and the corner reinforcing bars corresponding thereto.
According to claim 1,
an air volume interlocking shutter unit detachably coupled to the other opening of the fan duct but opened and closed in association with the air volume; and
Direct-connected parking lot fan, characterized in that it further comprises a plurality of unit fixing for fixing the air volume interlocking shutter unit to the fan duct.
According to claim 1,
The air volume interlocking shutter unit,
A plurality of rotary links 183 that are shaft-coupled from the rotary shaft 182 at equal intervals up and down to the link connecting bar 184; a plurality of shutters 181 each coupled to one end of the rotary link 183; Direct-connected parking lot fan, characterized in that the shutters (181) are in a lying state when they are closed, but gradually stand up as the shutters are opened, and are configured with support wings (185) that become fully upright when the shutters are fully opened.

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