KR101753983B1

KR101753983B1 - Movable Local Ventilator Device

Info

Publication number: KR101753983B1
Application number: KR1020150134246A
Authority: KR
Inventors: 문재경
Original assignee: 경진부로아 주식회사
Priority date: 2015-09-23
Filing date: 2015-09-23
Publication date: 2017-07-06
Also published as: KR20170035432A

Abstract

[0001] The present invention relates to a mobile type local exhaust system, and more particularly, to a mobile type exhaust system having a funnel-shaped intake port formed at one side thereof and being fixed to a rotating shaft of a motor provided inside a cylindrical body, Wherein the motor is provided with a forward rotation shaft and a rear rotation shaft on both sides thereof, the first suction fan is fixed to the front rotation shaft, and the second suction fan is fixed to the rear rotation shaft, Wherein a curved guide pin for guiding a straight flow of the air introduced through the first suction fan is formed on the inside diameter of the body between the first suction fan and the second suction fan by a plurality of .
In addition, a filter unit is coupled to one side of the body in contact with the suction port, and the suction port is rotated by a hinge provided at one side of the body to be opened and closed at one side of the body, and a coupling member provided on the opposite side of the hinge, As shown in FIG.
Further, a moving means is further provided so that both sides of the body are coupled to move the local exhaust device. The moving means includes a pair of casters having a plurality of casters at a lower portion and spaced apart from each other by a predetermined distance; A support rod extending from one end of the pedestal in an upper diagonal direction; The support bracket is provided at both sides of the body, and a fixing bracket is provided at a central portion of the support bracket to guide the rotation shaft and the angle bracket connecting the fixing bracket and the engagement bracket, And an adjusting lever is provided to unlock the angle adjusting lever so that the local exhaust device is rotated around the rotating shaft.
By providing the present invention configured as described above, the overall structure is made compact in comparison with a method of discharging through a discharge line such as a corrugated pipe in the past, and the suction force is remarkably increased.
Further, the filter unit is provided at one side of the body in contact with the suction port, the suction port is rotated by the hinge, is fixed by the fastening member, rotates the suction port around the hinge to open the filter, It is effective.
In addition to this, a coupling bracket provided on both sides of the body, a support of a moving means provided with a caster at the bottom, and an angle adjusting lever are used for movement, and the body is rotated around the angle adjusting lever to adjust the height So that the welding fume can be collected before it is scattered to the outside.

Description

[0001] Movable Local Ventilator Device [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a portable type local exhaust system for purifying exhausted welding fumes generated during welding of metals, and more particularly, The motor is provided with a first suction fan fixed to the front rotary shaft on both sides and a second suction fan fixed to the rear rotary shaft to increase the suction force and a plurality of curved guide pins are formed at equal intervals on the inner surface of the body, Thereby increasing the straightness of the air introduced into the suction fan and increasing the suction force by the second suction fan.

Generally, when welding in industry, welding rod is melted and welding fume is generated in welding rod and base metal material and scattered. This welding fume is fine sub-particle generated by condensation of material evaporated by heat. Its average diameter is 0.1 micron and iron, chrome, nickel , Manganese and other heavy metals.

Welding fumes containing the above components are very small in size and penetrate into the lungs and are sucked into the human body through the respiratory tract, causing lung cancer, pneumoconiosis, manganese poisoning, and the like, which may affect the respiratory system and the nervous system.

Welding on painted or plated steel also produces various unexpected harmful factors. When welding on a surface plated with copper or zinc, welding fumes containing heavy metals such as copper and zinc are generated, which may adversely affect the human body. There is a concern.

Depending on the working environment, welding in an enclosed space may cause weld fumes to accumulate and affect the worker to other persons far from the welding spot.

Accordingly, Korean Unexamined Patent Publication No. 10-2013-0102808, entitled " Welding Fume Discharging Device "has been disclosed as an example of a local exhaust device for sucking and discharging such welding fumes and the like. A discharge device for discharging welding fumes generated during a welding operation inside a block of a vessel to the outside of a block, comprising: a discharge fan driven by a motor and connected to a base, A discharge line for guiding the welding fumes inside the block to be discharged to the outside of the block when suction force is generated by operation of the discharge fan connected to the discharge fan in a state where the discharge fan is disposed, Member.

Accordingly, the welding fume can be discharged to the outside, and the discharge line can be supported in a state in which the installation shape is maintained by the support member so as to be disposed above the floor, thereby preventing safety accidents caused by the worker's hitches, And the installation and disassembly operation can be facilitated by the wheels.

However, in the conventional welding fume discharge apparatus, the amount of welding fumes to be inhaled is relatively small compared to the welding fumes generated when the distance between the end of the discharge line and the welding point is long, And the worker sucks the welding fumes.

Further, as the discharge line formed by the corrugated pipe is extended longer, that is, when the distance between the discharge fan and the discharge line is increased, the suction force of the discharge fan provided at the other end in the longitudinal direction of the discharge line becomes weak.

Korean Patent Registration No. 10-1459692 discloses a portable local exhaust system in which an exhaust port is formed at one side and an exhaust line communicated with the exhaust port is provided therein; A duct disposed in a region where the pollutant is positioned and sucking the pollutant; A rotating neck communicating with the exhaust line and provided on an upper surface of the apparatus main body; An arm unit having one end connected to the rotating neck and the other end connected to the pollutant suction duct and having a plurality of corrugated tubes; An exhaust pump for causing the exhaust action to proceed through the exhaust line; A pollution sensing unit for sensing a degree of pollution of the pollutant; And a controller for controlling the driving of the exhaust pump based on the information of the contamination detecting unit.

In addition, the pollutant intake duct has a hemispherical shape or a funnel shape, and a vortex blocking bar is formed in an inlet area to prevent swirling of contaminants that are inhaled.

Such a conventional mobile local exhaust system can be widely used in various places because it is easy to move a place, and thus it can be concentratedly used in a place where pollutants are generated.

However, in the conventional mobile type local exhaust system, the duct is formed in a hemispherical shape capable of collecting the pollutants moving from the lower part to the upper part, and must be positioned above the pollutant generation point. Thus, There was a problem that interferes with the operation.

In addition, the pollutant can be stagnated in the corrugated tube in the process of passing through the arm unit having the corrugated tube, and the suction force is weakened as the corrugated tube is extended.

In order to solve the above-described problems, the present invention has been developed to provide a motor having a funnel-shaped intake port on one side thereof, a motor provided inside the cylindrical body, and a motor provided on both sides of the motor, And curved guide pins for guiding straight flow of the air introduced through the first suction fan are formed at equal intervals in the body inner diameter between the first suction fan on the suction inlet side and the second suction fan on the opposite side, And the polluted material flowing into the body by the first suction fan is discharged to the outside by the second suction fan without decreasing the flow velocity by the guide pin, So that the overall structure is made compact, and the suction force can be remarkably increased.

In addition, a filter unit is provided on one side of the body in contact with the suction port, the suction port is rotated by a hinge, and is fixed by a fastening member so that the suction port is rotated around the hinge to open and then the filter of the filter unit can be easily replaced .

In addition to this, a coupling bracket provided on both sides of the body, a support of a moving means provided with a caster at the bottom, and an angle adjusting lever are used for movement, and the body is rotated around the angle adjusting lever to adjust the height So that the welding fume can be collected before it is scattered to the outside.

In order to achieve the above object, the mobile local exhaust system of the present invention includes a funnel-shaped suction port formed at one side thereof, and is fixed to a rotating shaft of a motor provided inside a cylindrical body, A portable local exhaust system for sucking noxious gas generated during a welding operation and discharging the noxious gas to a rear side of a body, the motor having a front rotation shaft and a rear rotation shaft on both sides thereof, a first suction fan fixed to the front rotation shaft, A first suction fan, a second suction fan, and a second suction fan. The first suction fan and the second suction fan are provided with a curved guide pin for guiding a straight flow of the air introduced through the first suction fan, Are formed at equal intervals.

In addition, a filter unit is coupled to one side of the body in contact with the suction port, and the suction port is rotated by a hinge provided at one side of the body to be opened and closed at one side of the body, and a coupling member provided on the opposite side of the hinge, As shown in FIG.

Further, a moving means is further provided so that both sides of the body are coupled to move the local exhaust device. The moving means includes a pair of casters having a plurality of casters at a lower portion and spaced apart from each other by a predetermined distance; A support rod extending from one end of the pedestal in an upper diagonal direction; The support bracket is provided at both sides of the body, and a fixing bracket is provided at a central portion of the support bracket to guide the rotation shaft and the angle bracket connecting the fixing bracket and the engagement bracket, And an adjusting lever is provided to unlock the angle adjusting lever so that the local exhaust device is rotated around the rotating shaft.

According to the present invention, a funnel-shaped suction port is formed on one side, and a motor provided inside the tubular body is formed of both motors having suction fans on the rotary shaft of the rotary shaft on both sides to increase the suction force, A plurality of curved guide pins for guiding straight flow of the air introduced through the first suction fan are formed at equal intervals in the body inner diameter between the first suction fan and the second suction fan on the opposite side, Since the contaminants introduced into the body are discharged to the outside by the second suction fan without reducing the flow rate by the guide pin, the overall structure is made compact compared to the method of discharging through the discharge line such as the conventional corrugated pipe, There is an effect of dramatically increasing the cost.

Further, the filter unit is provided at one side of the body in contact with the suction port, the suction port is rotated by the hinge, is fixed by the fastening member, rotates the suction port around the hinge to open the filter, It is effective.

1 is a perspective view of a mobile local exhaust system according to the present invention;
2 is a side cross-sectional view of a mobile local exhaust system according to the present invention;
3 is a plan view of a mobile local exhaust system according to the present invention;
4 is a front view of the body of the mobile local exhaust system according to the present invention.
FIG. 5 is a perspective view of a body of a mobile local exhaust according to the present invention. FIG.
6 is a side view of the mobile local exhaust according to the present invention in a rotated state;
7 is a use state diagram of a mobile local exhaust system according to the present invention.

Hereinafter, a mobile local exhaust system according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a side sectional view of a mobile type local exhaust system according to the present invention, FIG. 3 is a front view of a body of the mobile type local exhaust system according to the present invention, and FIG. 4 Is a perspective view of the body of the mobile local exhaust system according to the present invention.

The portable local exhaust system according to the present invention includes a funnel-shaped intake port 200 formed at one side thereof and includes a suction fan (not shown) fixed to rotary shafts 112 and 113 of a motor 110 provided inside a tubular body 100 The motor 110 includes a front rotation shaft 112 and a front rotation shaft 112. The front rotation shaft 112 is connected to both ends of the front rotation shaft 112 and the front rotation shaft 112, A first suction fan 120 is fixed to the front rotation shaft 112 and a second suction fan is provided to the rear rotation shaft 113. The first and second suction fans 120, A curved guide pin 140 for guiding the direct flow of the air introduced through the first suction fan 120 is formed at an inner diameter of the body 100 between the suction fan 120 and the second suction fan 130, Respectively.

With this configuration, the local exhaust device of the present invention is configured to suck in the pollutant generated in a local place. In particular, welding fumes generated at the welding point during the welding work of metal processing are sucked out by a strong suction force at a position close to the welding point.

1 and 2, the suction port 200 through which the pollutant is introduced is shaped like a hollow funnel with one side widened outward so that the flow rate of the pollutant flows toward the end of the suction port 200 So that it can be increased.

The body 100 having the motor 110 and the suction fans 120 and 130 for sucking contaminants therein is formed as a cylindrical body coupled with the inlet 200. The plate is rounded and welded to the end .

A motor fixing bracket 111 capable of fixing the motor 110 is provided on the lower side of the body 100. The motor 110 has front and rear rotation shafts 120 and 130 on both sides thereof, And the first and second suction fans 120 and 130 are fixed to the rear rotation shafts 120 and 130, respectively, so that the suction force can be increased.

At this time, the first and second suction fans 120 and 130 are formed in the same shape and rotate simultaneously in the same direction by the motor 110, so that the contamination of the body 100 through the first suction fan 120 So that the material is discharged to the outside through the second suction fan 130 so as not to be stagnated inside the body 100.

Therefore, contaminants are not stagnated and discharged at a high flow rate compared to the method in which contaminants are conveyed through the discharge line provided with the conventional expansion and contraction tube, and the contaminants generated in the closed workplace are not accumulated in the workplace, Can be reduced.

4 to 5, the inner diameter of the body 100 between the first suction fan 120 and the second suction fan 130 is larger than the inner diameter of the body 100 between the first suction fan 120 and the second suction fan 130, A plurality of curved guide pins 140 for guiding a straight flow of the body 100 are formed at equal intervals, and preferably, six to seven curved guide pins 140 are formed centering on the upper center of the inner diameter of the body 100.

At this time, the guide pin 140 is provided on the upper side and both side surfaces of the inner diameter so as not to interfere with the motor fixing bracket 111 provided in the lower portion of the inner diameter of the body 100.

The guide pin 140 has a size and a number according to the length and the inner diameter of the body 100. The guide pin 140 has a movement angle? 2 in a direction from the center of curvature of the guide pin 140 toward the inlet 200, Deg.] To 13 [deg.], And the radius of curvature [alpha] 1 is preferably formed to be 58 [deg.] To 60 [deg.].

The structure of the guide pin 140 serves as a guide for guiding the linear flow of the contaminant flowing in a spiral manner through the first suction fan 120, The flow of the pollutants in the body 100 is prevented from being stagnated due to the slow flow of the pollutants in the body 100 and is quickly moved in the direction of the second suction fan 130 so as to be quickly discharged to the outside through the second suction fan 130 .

Meanwhile, the guide pin 140 is formed in a direction in which the curved inner side faces the air that is spirally introduced through the first suction fan 120. That is, as shown in FIG. 4, the curved inner side faces to the left so as to face the air flowing in the clockwise direction, so that the air is guided along the inner side.

5 (b), the guide pin 140 has a radius of curvature? 1 of 58 to 60 degrees, and the radius of curvature of the guide pin 140 is larger than the radius of curvature of the inlet 200, 2 of the guide pin 140 is formed to be 12 to 13 degrees in the clockwise direction so that the inflow angle beta 1 of the guide pin 140 is larger than the discharge angle beta 2, The air that has flowed in through the spiral shape is prevented from being reflected on the inner side of the curved inner surface to flow backward and naturally moves along the inner surface to flow in a straight line.

3, the filter unit 150 is coupled to one side of the body 100 in contact with the suction port 200, and the suction port 200 is provided at one side of the body 100 And is fixed to the body 100 by a fastening member 170 provided on the opposite side of the hinge 160. The fastening member 170 is provided on the opposite side of the hinge 160. [

At this time, the fastening member 170 is formed in the form of a cicada ring, and may be formed by other binding methods.

The filter unit 150 is formed in a rectangular or circular box shape having an outer circumference bent to be fixed to one side of the body 100 and has a filter bracket 152 for fixing the filter 151 therein And a bracket fixing part 153 having both ends fixed to one side of the body 100 to firmly fix the front surface of the filter bracket 152.

At this time, the filter 151 has a plurality of Hepa filters so that fine particles can be filtered out.

The moving means 300 is further provided with a plurality of casters (not shown) disposed at the lower portion thereof so that both sides of the body 100 of the present invention may be coupled to move the local exhaust device 1, A support base 320 extending upward from the one end of the support 310 and extending in the upper diagonal direction of the support 310 and a pair of supports 310 spaced a predetermined distance apart from each other, And a handle 330 for connecting the handle 320 and the handle 330.

Therefore, the local exhaust device 1 of the present invention can be brought close to a source of contamination such as a welding point of a welding operation, thereby minimizing the amount of contaminants remaining on the outside. In the case where welding is sequentially performed to various parts, .

1 and 6, a coupling bracket 101 is provided on both sides of the body 100, and a fixing bracket 321 is provided at the center of the supporting base 320, And the angle adjusting lever 103 is provided to connect the coupling bracket 101 and the angle adjusting lever 103 to the local exhaust unit 1 ).

That is, a curved long hole 321a penetrates through the fixing bracket 321, and an insertion hole 101a corresponding to the long hole 321a is passed through the coupling bracket 101 upwardly and downwardly two to three The bolt-shaped angle adjusting lever 103 can be unlocked from the insertion hole 101a to pivot the local exhaust device 1 about the pivot shaft 102. In accordance with the insertion hole 101a, It is possible to adjust the bottom height.

A body handle 103 may be provided on the outer circumferential surface of the body 100 to rotate or move the local exhaust device 1 upward or downward.

A reinforcing connecting member 340 is provided between the pedestals 310 and a power button 351 is provided on the reinforcing connecting member 340 to apply power to the local exhaust device 1 The control unit 350 is formed.

Therefore, the control unit 350 and the motor 110 are electrically connected to operate the motor 110.

Hereinafter, an operation of the mobile local exhaust system 1 according to the present invention will be described in detail with reference to the accompanying drawings, but a description will be given of a process of sucking a welding fume generated during welding of a metal do.

7 shows a state of use of the mobile local exhaust system according to the present invention.

First, the mobile local exhaust system 1 positions the suction port 200 close to the movement path of the welding fumes generated at the welding point. At this time, the body 100, which is a passage through which the welding fumes are sucked, can be easily moved by the cart-type moving means 300 provided with the caster 301 at the lower portion. The caster 301 is provided with a stopper Move to the position and lock it with the stopper.

Simultaneously with the welding operation, the power button 351 of the control unit 350 provided in the moving means 300 is turned on to operate the motor 110 fixed inside the body 100.

The motor 110 includes a first suction fan 120 and a second suction fan 120. The first suction fan 120 is fixed to the front rotary shaft 112 in the direction of the suction port 200 and the rear rotary shaft 113 The second suction fan 130 is rotated at the same time so that welding fumes are introduced through the suction port 200.

In addition, the filter unit 150 is fixed to the front of the body 100 so that the welding fumes pass through the filter unit 150 while the contaminants such as dust are purified, And then flows into the body 100.

The welding fumes that are swirled in the above-described manner have a straight flow along the curved inner side surfaces of the curved guide pins 140 provided on the inner diameter of the body 100.

Accordingly, the welding fumes are not stagnated inside the body 100, and are discharged in a linear flow to the outside of the body 100, that is, the rear of the body 100, by the second suction fan 130.

By the movement of the welding fumes, the discharge efficiency of the second suction fan 130 can be increased.

In addition, the flexible duct 500 is connected to the rear side of the body 100 to discharge the welding fumes to a specific place.

Therefore, the mobile local exhaust system 1 of the present invention sucks the welding fume near the welding spot so as to prevent the welding fumes from remaining in the work site without interfering with the welding operation, thereby improving the welding efficiency. As a result, Thereby preventing the health of the operator from being adversely affected.

Although the preferred embodiments of the present invention have been described for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. .

1: Local exhaust system 100: Body
101: coupling bracket 110: motor
120: first suction fan 130: first suction fan
140: guide pin 150: filter part
160: hinge 170: fastening member
200: inlet port 300: moving means
310: pedestal 320: support
330: handle portion 340: reinforcing connecting member

Claims

A suction port 200 is formed at one side of the suction port 200 and is connected to the suction port 200 through suction fans 120 and 130 fixed to the rotating shafts 112 and 113 of the motor 110 provided inside the cylindrical body 100, And exhausts the harmful gas generated during the welding operation to the rear of the body 100,
The motor 110 includes a front rotation shaft 112 and a rear rotation shaft 113 on both sides thereof and a first suction fan 120 is fixed to the front rotation shaft 112. A second suction The first suction fan 120 and the second suction fan 130 are formed of a two-sided motor having a fan. The inner diameter of the body 100 between the first and second suction fans 120, A plurality of curved guide pins 140 are formed at regular intervals to guide the guide pins 140. The guide pins 140 are formed in a plate shape and have a size and a number according to the length and the inner diameter of the body 100, 2 is inclined by 12 占 to 13 占 from the center of curvature of the inlet 140 in the direction of the inlet 200 and the curvature radius? 1 is 58 占 to 60 占 and the inlet angle? (? 2), so that the air spirally introduced through the first suction fan (120) is prevented from being reflected on the curved inner surface and flowing backward , And flows in a straight line along the inner side surface.

delete

The method according to claim 1,
A filter unit 150 is coupled to one side of the body 100 in contact with the suction port 200. The suction port 200 is rotated by a hinge 160 provided at one side of the body 100, Is fixed to the body (100) by a fastening member (170) provided on the opposite side of the hinge (160) and opened at one side of the hinge (100).

The method according to claim 1,
The body 100 may further include a moving means 300 coupled to both sides of the body 100 to move the local exhaust device 1,
The moving means 300 includes a pair of pedestals 310 spaced apart from each other by a plurality of casters 301 at a lower portion thereof; A support table 320 extending from the one end of the pedestal 310 in an upper diagonal direction; And a handle (330) bent at the end of the support base (320) to connect the support base (320).

5. The method of claim 4,
A fixing bracket 321 is provided at a central portion of the support base 320 to support the fixing bracket 321 and the coupling bracket 101, (102) and an angle adjusting lever (103) are provided to release the angle adjusting lever (103), and the local exhaust device (1) is rotated about the rotation axis (102).

5. The method of claim 4,
A reinforcing connecting member 340 is provided between the pedestals 310 and a power button 351 is provided on the reinforcing connecting member 340 to apply power to the motor 110 inside the body 100 And the control unit (350) is provided.