KR200349665Y1 - Arm type duct for removing dust - Google Patents

Abstract

The present invention relates to a female type duct that removes dust such as welding smoke, powder powder, dust, powder, oil mist, and odor generated at the work site.

The present invention provides a new type of arm type duct incorporating a female structure, which is a support of the duct, in a hose to completely solve the interference problem at the same time and improve the appearance, and at least four articulated arms By providing a female type duct containing a structure, it can be applied to various conditions of various workplaces efficiently.

The arm type duct of the present invention has an elbow connected to the main duct side, a hood support for connecting the damper and the arm member for adjusting the air volume, and a hood capable of rotating up and down and left and right, and connecting the elbow and the hood. And at least four articulated arm structures, and flexible hoses having both ends coupled to elbows and hoods using rubber rings while receiving the articulated arm structures inwardly.

Description

Arm type duct for removing dust

The present invention relates to an arm type duct for dust removal, which effectively and economically removes dust generated at a work site. More specifically, the arm structure, which is a support of the duct, is built into the hose to ensure sufficient working space for the worker. It is possible to completely solve the interference problem at the same time and improve the appearance. Especially, at least four articulated arm structures are adopted for the dust removal arm type duct that can be suitably applied to various work site conditions. It is about.

In general, in workplaces such as factories or restaurants, dust such as welding smoke, powdered powder, dust, powder, oil mist, and odor is generated, and dust removal is essential for a clean work environment and health of workers.

For example, when welding works in an industrial site, gases harmful to the human body are generated by the melting of the welded object and the welding rod, and when cooking in a restaurant, harmful gases or unpleasant smells are also generated. In the city, a lot of fine dust is generated.

Such gases, odors and dusts adversely affect the health of the worker and worsen the working environment, so it may be desirable to remove them immediately for a clean working environment and the health of the worker.

In general, in the case of discharging dust from the work site, if the working position is fixed, the hood can be installed at the upper part of the working position and the duct can be extended from the hood to discharge the dust. It is necessary to move the hood to the working position, to adjust the angle of the hood or to adjust the inclination angle of the duct to smoothly discharge the dust.

To this end, in recent years, instead of the existing fixed type ducts, the arm type ducts capable of adjusting the length or angle have been applied to many workplaces.

The existing arm type duct is a combination of two joint structured arms and flexible hoses. The existing arm type ducts have limited length and angle adjustments to suit the requirements of various work sites. There is a limit to the application, and above all, since the female structure is exposed to the outside of the duct, it interferes with the work while interfering with the work, as well as the appearance is not beautiful.

Therefore, the present invention has been devised in view of such a point, and by providing a new type of female type duct incorporating a female structure as a support of the duct in the hose, it is possible to completely solve the interference problem at the same time and improve the appearance. The purpose is to make it possible.

Another object of the present invention is to provide an arm type duct including at least four articulated arm structures to be suitably and efficiently applied to various conditions of various workplaces.

The present invention for achieving the above object has an elbow connected to the exhaust fan side or the main duct side, and a hood support for connecting the damper and the arm member for adjusting the air volume, and the hood can be rotated up and down and left and right, and the elbow And at least four articulated arm structures connecting the hood and the hood, and flexible hoses having both ends coupled to the elbow and the hood using rubber rings while accommodating the articulated arm structures to the inside.

In addition, the articulated arm structure has a first arm connected to the elbow support of the elbow rotatably, and a second arm connected to the first link of the first arm to be rotatable vertically and between this and the first link. A spring mounted to resiliently support the second arm, a third arm connected to the second link of the second arm in a vertically rotatable manner, and a fourth linkably connected to the third link of the third arm in a vertically rotatable manner; It is characterized by consisting of cancer.

In addition, the first arm is characterized by consisting of a structure in which two bars are connected by horizontal links in the middle of the length.

In addition, the connecting member at both ends of the fourth arm is mounted to be offset by 90 ° to each other, characterized in that the link for allowing the up and down and left and right rotation of the hood.

1 is a perspective view showing the overall components of the dust removal arm type duct according to the present invention

Figure 2 is a front view showing the assembled state of the dust removal arm type duct according to the present invention

Figure 3a, 3b, 3c is a front view showing a state of use of the dust type arm removal duct according to the present invention

4a, 4b is a front view and a side view showing the adjusted state of the hood in the dust removal arm type duct according to the present invention

5 is a front view showing another installation state of the dust removal arm type duct according to the present invention

<Explanation of symbols for main parts of drawing>

10: elbow 11: elbow support

12: first arm 13: first link

14: second arm 15: spring

16: second link 17: third arm

18: 3rd link 19: 4th arm

20: damper 21: hood support

22: hood 23: rubber ring

24: flexible hose 25: horizontal link

26: link fork 27: flange

28: adapter 29: lever

30 handle 31 friction disk

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing the overall components of the dust removal arm type duct according to the present invention, Figure 2 is a front view showing the assembled state of the dust removal arm type duct according to the present invention.

As shown in Figure 1 and 2, the arm type duct provided in the present invention is largely connected to the exhaust fan side or the main duct side elbow 10, the hood 22 to directly suck in dust, and the elbow 10 And a joint articulated arm structure supporting the hood 22 and a flexible hose 24 connected between the elbow 10 and the hood 22 while receiving the articulated arm structure inward.

The elbow 10 is a cylindrical connector for sending dust transported through the flexible hose 24 to the main hood side, the main duct through the flange 27 is integrally formed at one end and the adapter 28 assembled therewith. Connected to the side.

The elbow 10 may be selectively connected to the flange 27 and the adapter 28 to the upper or lower side according to the conditions of the work site.

In addition, an elbow support 11 for connecting the articulated arm structure is formed at the other end of the elbow 10, wherein the elbow support 11 has an approximately "c" shape and the articulated arm therebetween. The arm member of the structure may be connected to the structure is fastened after insertion.

The hood 22 is a portion that directly closes to the working position and directly sucks in dust, and a damper 20 operable by the lever 29 is installed therein for adjusting the air volume, and the worker is held by a worker by the outside. The handle 30 which can be operated is formed.

The hood 22 is preferably applied to a double polycarbonate material, it may be used to attach a separate light device during the night work.

In addition, the rear end of the hood 22 is formed with a hood support 21 for connecting the articulated arm structure, the hood support 21 extends inclined side by side at the rear end of the hood body in the form of a ring. Between the two support 21a is formed and the support 21a, one side is fastened by bolts, and the other is composed of a connector 21b having holes for fastening the bolts. When the bolt is fastened together with two friction disks 31 on the fourth arm 19 side of the articulated structure, which will be described later, the entire hood 22 can be rotated in the vertical direction.

That is, when the hood 22 is moved up and down while holding the handle 30, the hood 22 can be rotated vertically with the fastening portion of the connecting body 21b as an axis, and the rotation controlled state at this time is the friction disk. It can be maintained by (31).

In addition, the hood 22 can be adjusted not only in the up and down direction, but also in the left and right direction. For this purpose, the friction disk is provided on both sides of the bolted portion between the support body 21a of the hood support 21 and the connecting member 21b. When the 31 is fastened together at the time of fastening the bolt, the hood 22 can also be rotated in the left and right directions with the axis as the axis.

Of course, at this time, both ends of the bolt fastening portion of the connecting body 21b are maintained at a 90 ° twisted state, so that the vertical and horizontal rotation control of the hood 22 can be performed smoothly.

The articulated arm structure is a part supporting the entire flexible hose 24 including the hood 22 while connecting between the elbow 10 and the hood 22, and all four are integrally assembled by the link member. It is composed of arm members.

For example, the articulated arm structure may include a first arm 12 connected to the elbow support 11 of the elbow 10 so as to be vertically adjusted, and a first link 13 of the first arm 12. A second arm 14 rotatably connected to the second arm 14, a third arm 17 rotatably connected to the second link 16 of the second arm 14, and the third arm 17. It may be configured as a fourth arm (19) connected to the third link (18) of the vertical rotation.

In addition, a spring 15 is mounted between the first link 13 and the second arm 14 so that the second arm 14 can be elastically supported, and further connected to the rear end from this. The third arm 17, the fourth arm 19, and the entire hood 22 may also be affected by the spring bearing force.

Here, the first link 13, the second link 16 and the third link 18 has a substantially "c" shaped cross-section so that the bolt is fastened in the state receiving the end of the female member inwards It can be made in a structure that can be, and at this time both sides of the bolt coupling portion is equipped with a friction disk 31 can be maintained a predetermined controlled state between each arm member.

In a more preferred embodiment, the adjusted state of the arm member may be maintained unless external force is applied by the frictional force exerted by the friction disk 31 mounted together at the bolt coupling portion between the arm member and the link member when the arm member is adjusted. In this case, if the spring washer (not shown) is inserted between the head portion of the bolt and the outer side of the link member and between the nut side and the other outer side of the link member, the friction disk 31 may Even if worn, the adhesion state of the friction disk 31 may be maintained by the pressing force of the spring washer, thus enabling the continuous adjustment of the arm member to be maintained.

In addition, in the case of the first arm 12 can be used by applying a single member, in the case of requiring a more extended length of the form of connecting two bars by employing a horizontal link (25) in the middle It can be used by adjusting the rotation in the left and right directions.

In addition, in the case of the fourth arm 19, both ends of the connecting member are formed as link forks 26 which are mounted to be shifted by 90 ° to each other, thereby rotating the entire fourth arm 19 including the hood 22 in the vertical and horizontal directions. I can regulate it.

One of the biggest features provided by the present invention is that it applies a structure that does not expose the arm member and the link member to the outside.

To this end, a flexible hose 24 made of a PVC material wound around the steel core and having a heat resistance temperature of about 70 ° C. is provided, and the flexible hose 24 extends over the entire length while completely covering the arm member and the link member. Both ends thereof are connected to the rear ends of the respective ring shapes of the elbow 10 and the hood 22 by rubber rings 23.

As the arm member and the link member are embedded in the flexible hose 24, it is possible to completely eliminate the interference problem that hinders the work as well as improving the appearance, thereby ensuring a sufficient working space for the worker.

Figure 3a, 3b, 3c is a front view showing the state of use of the dust-type arm type duct according to the present invention.

The arm type duct of the present invention is used by installing brackets on a wall and the like on the upper side of the work site in a horizontal or vertical position, or by using a characteristic that can be freely changed in length and angle. It can be installed in various places such as cabinet, floor or workbench.

As shown in FIG. 3A, the second arm 14 is folded upward and vertically while the second arm 14, the third arm 17, and the fourth arm 19 are kept in a straight line. The example shows the use of the third arm 17 and the fourth arm 19 in a state of being folded down vertically side by side, and is an effective use example when the working position is close to the wall where the duct is installed. Can be.

As shown in FIG. 3B, in this case, the third arm 17 is placed vertically while the first arm 12 and the second arm 14 are kept in a horizontal state, and the fourth arm 19 is disposed in a straight line. Shows an example of using in a state folded down almost vertically with respect to the third arm 17, it can be said to be an effective use example when the working position is a certain distance from the wall or the like where the duct is installed.

As shown in FIG. 3C, in this case, the fourth arm 19 is vertically bent downward while the first arm 12, the second arm 14, and the third arm 17 are kept in a straight line. It shows an example of using it as a state, and it is an effective use example when the working position is far from the wall where the duct is installed.

Figures 4a, 4b is a front view and a side view showing the adjustment of the hood in the dust removal arm type duct according to the present invention.

As shown in FIG. 4A, a use example of rotating the hood 22 in the vertical direction is shown here, and when the handle 22 of the hood 22 is grasped and moved up and down, the hood 22 supports the hood support 21. It is rotated around the female bolt connection portion of the connecting body (21b) having, so that the angle can be adjusted up to 110 degrees to the front and back on the basis of the vertical position.

As shown in FIG. 4B, a usage example of rotating the hood 22 in left and right directions is shown here. When the handle 30 of the hood 22 is grasped and moved to both sides, the hood 22 is a hood support 21. It is rotated around the support-side bolt fastening portion of the connecting body (21b) having, so that the angle can be adjusted up to 90 degrees on both sides with respect to the vertical position.

Of course, the left and right direction adjustment of the hood 22 as described above is also possible by the link fork 26 of the fourth arm 19, the adjustment at this time is the left and right directions of the hood 22 and the fourth arm 19 as a whole It means regulation.

In the embodiment of the present invention is only to describe a preferred embodiment of the present invention is not limited to the technical scope of the present invention. That is, the present invention may install the elbow 10 connected to the exhaust fan or the main duct side as shown in FIG. 5 with the flange 27 and the adapter 28 on the upper side. Naturally, it belongs to the scope of the right to devise.

As described above, the present invention provides a new type of female type duct incorporating a female structure, which is a support of the duct, in a hose and employing at least four articulated female structures, thereby completely solving the interference problem during work and at the same time. There is an advantage to improve the properties, and also through the characteristics of the articulated arm structure there is an effect that can be applied to various conditions of various workplaces efficiently.

Claims (4)

An elbow 10 connected to the exhaust fan or the main duct side, a damper 20 for adjusting the air volume, and a hood support 21 for connecting the arm member, and a hood 22 capable of vertically and horizontally rotating; At least four articulated arm structures connecting the elbow 10 and the hood 22 and both ends of the elbow 10 and the hood using the rubber ring 23 while accommodating the articulated arm structure to the inside. 22) A dust removal arm type duct comprising a flexible hose (24) coupled to the. 2. The articulated arm structure of claim 1, wherein the articulated arm structure includes a first arm (12) rotatably connected to the elbow support (11) of the elbow (10), and a first link (13) of the first arm (12). A second arm 14 which is rotatably connected to the upper and lower sides thereof, a spring 15 mounted between the second arm 14 and the first link 13 and elastically supporting the second arm 14, and the second arm 14 A third arm 17 rotatably connected to the second link 16 of the third arm 17 and a fourth arm 19 rotatably connected to the third link 18 of the third arm 17. Arm type duct for dust removal, characterized in that consisting of. 3. The arm type duct according to claim 2, wherein the first arm (12) has a structure in which two bars are connected by horizontal links (25) in the middle of the length. 3. The dust according to claim 2, wherein the connecting members at both ends of the fourth arm (19) are made of link forks (26) which allow the top and bottom and left and right rotations of the hood (22) while being mounted at 90 ° to each other. Removable arm type duct.