KR200485288Y1

KR200485288Y1 - Handle assembly for duct fire damper

Info

Publication number: KR200485288Y1
Application number: KR2020160003997U
Authority: KR
Inventors: 한진식
Original assignee: 한진식
Priority date: 2016-07-11
Filing date: 2016-07-11
Publication date: 2018-01-18

Abstract

A bracket coupled to the outer surface of the duct; A shaft rod penetrating the central portion of the bracket and having an operation shaft mounted on an upper end thereof; A working sprung integrally formed in a downwardly bent shape around the shaft rod in the inner portion of the bracket and having a plurality of spring locking projections formed at regular intervals along the circumferential direction; An opening / closing plate operating spring fixed to the spring latching protrusion of the operating spring latching part and having one end fixed to one side of the inner side of the bracket while being fitted around the shaft rod; A handle fixed to an end of the shaft outside the bracket; A rotary member coupled to an end of the handle by a fastener; A latching member elastically coupled to one side of the rotating member to form a latching groove; A fuse tube penetratingly fixed to one side of the bracket; A fuse tip fixed by soldering to one side of the fuse tube; And a fuse operating rod disposed in a state of being in close contact with the fuse tip and having an elastic force by a compression coil spring inside the fuse tube and corresponding to the latching groove protruded to the other side of the fuse tube, The operation can be performed quickly in the event of a fire, the tension of the operating plate spring can be easily adjusted, and the operating plate operating shaft connected to the opening and closing plate can be stably mounted on the handle structure.

Description

[0001] HANDLE ASSEMBLY FOR DUCT FIRE DAMPER [0002]

More particularly, the present invention relates to a handle structure for a duct fire damper, and more particularly, it relates to a handle structure for a duct fire damper, more specifically, To a handle structure for a duct fire damper which is stably mounted on a structure.

In general, air conditioning maintains indoor air temperature, humidity, cleanliness, and average flow rate suitable for room use, and eliminates dust and harmful gas. It is also called air conditioning or air conditioning. It is perceived to combine cooling and heating by keeping the room in an appropriate condition all the time through the four seasons.

Such air conditioning can be roughly divided into pleasure air conditioning that provides a pleasant environment for people in the room, industrial air conditioning that maintains a state suitable for the articles to be treated in the room and the processing thereof, and a suitable indoor condition The room temperature can be maintained at the target value by sending low or high air to the hot or cold room. When the humidity is high, dry air is sent. When the dust or gas concentration exceeds the allowable value, clean air is sent .

Therefore, as a general method of air conditioning, an air conditioner capable of changing the air into various states is installed in a machine room, and a necessary air is moved to each room through a duct by using a blower.

The damper is used when the flow rate of air is to be changed or blocked. The damper is provided with a damper handle for manually and automatically operating the opening / closing plate rotatably disposed in the duct. Respectively.

In this conventional damper handle, a shaft rod is inserted through a central portion of a bracket coupled with an outer surface of a duct, and one end of a shaft rod located inside the bracket is connected to an opening / closing plate operation spring so as to have an elastic force when the shaft rod is rotated, The other end of the shaft located on the outside of the bracket is connected to the handle, and the end of the handle is coupled to the rotary member by the fastener.

Further, at one side of the rotary member, a locking hole is provided resiliently, and a locking groove is formed between the locking hole and the rotary member.

The fuse tube is fixed to the other side of the front surface of the bracket. The fuse, which is filled with lead at one side of the fuse tube, is positioned inside the duct through the inner surface of the bracket. Inside the fuse tube, And the fuse actuating rod protrudes to the other side of the fuse tube and is positioned outside the bracket.

Further, the opening / closing plate inside the duct is connected to the opening / closing plate operating shaft, and the opening / closing plate operating shaft is fitted and fixed to the upper end of the shaft rod.

In this state, when the handle is rotated to one side, as the shaft rod is rotated by the handle, the operating plate spring connected to the shaft rod is compressed and the opening and closing plate connected to the shaft rod is rotated to open the duct, When the rod is rotated, the rotary member connected to the handle and the fastening hole is rotated together, and the handle is maintained in the rotated state as the end of the fuse actuating rod is inserted into the fastening groove formed by the rotary member and the fastening hole.

When the building is lit, the lead constituting the fuse of the fuse tube is melted by the heat coming from the duct, so that the fuse actuating rod is moved in the direction of the duct by the elastic force of the compression coil spring, The rotating member and the handle are reversely rotated in accordance with the restoring force of the opening and closing plate operating spring together with the shaft rod, and the opening and closing operation shaft connected to the shaft rod and the opening and closing plate are rotated together to close the duct, Thereby preventing it from being moved to a place where it is located.

Japanese Patent Laid-Open No. 10-2006-0025509 'Handle for ventilation damper and airflow damper damper'

However, the handle handle of such a general duct fire damper has a problem in that it does not melt quickly within a short time even if a fuse is filled with lead so that fire and smoke can not be blocked quickly due to missed initial golden time.

In addition, in the case of the opening and closing plate operating springs, although the spring force gradually decreases as the seal is installed, it can not be adjusted once it is installed.

In addition, since the operation shaft of the opening and closing plate is fitted and fixed in a straight type opening and closing plate spring stopper formed on the upper end of the shaft rod, the fitting position can be easily released because the fitting position is loose and unstable, and noise is caused by vibration when the air moves to the duct It was a problem.

The object of the present invention is to solve the above-mentioned problems, and it is an object of the present invention to provide a handle structure in which an operation can be performed in a short time when a fire occurs, So as to stably mount the handle structure for a duct damper.

In order to achieve the above object, a handle structure for a duct damper according to the present invention includes: a bracket coupled to an outer surface of a duct;

A shaft rod penetrating the central portion of the bracket and having an operation shaft mounted on an upper end thereof;

A working sprung integrally formed in a downwardly bent shape around the shaft rod in the inner portion of the bracket and having a plurality of spring locking projections formed at regular intervals along the circumferential direction;

An opening / closing plate operating spring fixed to the spring latching protrusion of the operating spring latching part and having one end fixed to one side of the inner side of the bracket while being fitted around the shaft rod;

A handle fixed to an end of the shaft outside the bracket;

A rotary member coupled to an end of the handle by a fastener;

A latching member elastically coupled to one side of the rotating member to form a latching groove;

A fuse tube penetratingly fixed to one side of the bracket;

A fuse tip fixed by soldering to one side of the fuse tube; And

And a fuse actuating rod located in a state of being closely contacted with the fuse tip with an elastic force by a compression coil spring inside the fuse tube and corresponding to the locking groove protruded to the other side of the fuse tube. do.

The fuse tip has a cross-

Quot; is inserted into the fuse-tip fixing tube to be soldered and fixed,

And the fuse tip fixing tube is screwed to the fuse tube by a fixing screw penetrating the center portion.

The fuse tip fixing pipe is drawn out through a central portion of the fixing screw, and a soldering portion of the fuse tip is positioned on an outer side of the fixing screw.

And an outer surface of the shaft contact portion of the opening / closing plate operation shaft has the same size and shape as the inner surface of the insertion groove, so that the opening / closing plate operation shaft is not rotated at the upper end of the shaft rod And is tightly fixed in a state of being fixed.

As described above, in the handle structure for a duct damper according to the present invention, a fuse tip is fixed to one end of a fuse tube by soldering, and in particular, a solder portion of the fuse tip is located at an external position of the fuse tube, The soldering portion of the fuse tip is melted at a high speed due to the influence of the heat on the soldering portion in a short time, so that the duct closing operation can be performed through the opening / closing plate in a short time when a fire occurs.

Further, since the one end of the opening / closing plate operating spring is not fixed to the shaft rod but can be positioned and attached to a plurality of spring blocking projections of the operating spring latch formed around the shaft rod, the operation of fixing the opening / closing plate operating spring to the shaft can be easily performed As a matter of course, even if the tension of the operation spring of the opening and closing plate is loosened, it can be moved and fixed again to a position corresponding to the tension, thereby ensuring stable operation at all times.

In addition, since the opening / closing plate operation shaft is closely fixed to the angled insertion groove formed in the upper surface of the shaft rod, there is no fear that the opening / closing plate operation shaft will fall back from the shaft rod. In addition, vibration and noise can be prevented from occurring during air flow, There is also an advantage to be able to be.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an inner portion of a handle structure for a duct damper according to a preferred embodiment of the present invention; FIG.
FIG. 2 is a perspective view of the outside of a handle structure for a duct damper according to a preferred embodiment of the present invention; FIG.
3 is a sectional view of a handle structure for a duct damper according to a preferred embodiment of the present invention;
FIG. 4 is an operational view of a handle structure for a duct damper according to an embodiment of the present invention; FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a fixing bracket for a furniture sliding door according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of the inside of a handle structure for a duct damper according to a preferred embodiment of the present invention, FIG. 2 is a perspective view of the outside of a handle structure for a duct damper according to a preferred embodiment of the present invention, FIG. 4 is an operational state diagram of a handle structure for a duct damper according to a preferred embodiment of the present invention; FIG. 4 is a sectional view of a handle structure for a duct damper according to a preferred embodiment of the present invention;

As shown in the drawing, the handle structure for a duct damper according to a preferred embodiment of the present invention has a shaft rod 20 inserted through a central portion of a bracket 10 engaged with an outer surface of a duct (not shown) An opening / closing plate operation shaft 1 connected to an opening / closing plate (not shown) inside the duct is fixed to an upper end portion of the shaft rod 20 inside the bracket 10 and a knob The rotary member 31 is fixed to the end of the handle 30 and the stopper 32 is elastically provided at one side of the rotary member 31 to engage with the rotary member 31, (33). An elastic member for elastically connecting the latching member 32 to the rotary member 31 is not shown.

An operation spring stopper 21 is integrally formed on the upper portion of the shaft rod 20 at the inner side portion of the bracket 10 in a downwardly bent shape. The operation spring stopper 21 is formed at regular intervals along the circumferential direction One end of the opening and closing plate operating spring 40 which is fitted around the shaft rod 20 is connected to one of the spring latching projections 22 of the operating spring latching opening 21, And the other end of the opening / closing plate operating spring 40 is fixed to one side of the inner portion of the bracket 10 so as to exert an elastic force when the knob 30 is rotated.

A fuse tube 50 is fixed to one side of the bracket 10 and a fuse tip 51 is fixed to one side of the fuse tube 50 by brazing and is positioned inside the duct. Inside the fuse tube 50, The fuse actuating rod 53 is positioned in a state of being in tight contact with the fuse tip 51 while holding the elastic force by the compression coil spring 52. The opposite end of the fuse actuating rod 53 is engaged with the rotation member 31, And protrudes to the other side of the fuse tube 50 so as to correspond to the engagement groove 33 formed through the opening 32.

The fuse tip 51 has a cross-

And the fuse tip fixing pipe 54 is screwed to the fuse tube 50 by a fixing screw 55 penetrating the center portion.

At this time, the fuse tip fixing pipe 54 is configured to be pulled out through the center of the fixing screw 55, so that the soldering portion of the fuse tip 51 is positioned on the inner side of the fixing screw 55.

The outer surface of the shaft contact portion of the opening and closing plate operating shaft 1 is formed in the same size and shape as the inner surface of the insertion groove 23, The operation shaft 1 is tightly fixed to the upper end of the shaft rod 20 without rotating. The shapes of the insertion groove 23 and the lower end of the opening / closing plate operation shaft 1 can be formed in various shapes.

A stopper 11 is protruded from one side of the bracket 10 and a stopper stopper 34 is fixed to one side of the stopper 11 so that the handle 30 And the stopper 11 is engaged with the stopper stopper rod 34 when the open / close board is rotated, the handle 30 and the open / close board are rotated to the correct position only.

The operation of the handle structure for duct damper according to the preferred embodiment of the present invention thus configured will be described.

First, when the handle 30 is rotated in one direction with the stopper stopper 34 engaged with the stopper 11, the shaft rod 20 is rotated by the handle 30 so that the opening / The opening and closing plate connected to the shaft rod 20 is rotated to open the duct and the rotary member 31 is rotated together when the shaft rod 20 is rotated by the handle 30 as described above The end of the fuse actuating rod 53 is inserted into the engaging groove 33 formed by the rotary member 31 and the engaging hole 32 so that the grip 30 is rotated.

The fuse tip 51 at the end of the fuse tube 50 is inserted into the fuse tip fixing tube 54. In this case, And the fuse tip fixing pipe 54 is screwed to the fuse tube 50 through the fixing screw 55 so that the soldering portion of the fuse tip 51 can be melted more quickly The fuse tip fixing pipe 54 is pulled out through the center of the fixing screw 55 and the solder portion of the fuse tip 51 is positioned on the outer side of the fixing screw 55, 51 so that the soldering portion of the fuse tip 51 melts as quickly as possible and the fuse actuating rod 53 is elastically moved in the duct direction by the elastic force of the compression coil spring 52. [

The rotating member 31 and the handle 30 which are hooked on the end of the fuse operating rod 53 are fixed to the shaft rod 20 while being reversely rotated in accordance with the restoring force of the opening and closing plate operating spring 40 together with the shaft rod 20 The stopper stopper 34 fixed to one side of the handle 30 is hooked on the stopper 11 formed on the one side of the outer side of the bracket 10 and the handle 30 and the opener / The opening and closing plate can be rotated only to the extent that the duct closes, and the duct is closed by the opening and closing plate as described above, it is possible to prevent the flame and the smoke from moving to another place through the duct in the shortest time when the fire occurs.

On the other hand, the opening / closing plate operating spring 40 for providing an elastic force for operating the opening / closing plate gradually reduces the elastic force in the state where the loading / unloading operation is performed by rotating the knob 30, The spring engagement protrusion 22 of the operation spring stopper 21 formed around the upper end of the shaft rod 20 is selected when the open / close plate operation spring 40 is engaged, When it is determined that the tension of the operating plate spring 40 is reduced during the inspection, the handle 30 is released from the loaded position and the bracket 10 Closing plate operation spring 40 is changed and fixed to the proper position, the tension of the opening / closing plate operation spring 40 is released from the normally open / It is possible to maintain an appropriate level that can be rotated with the benefits that can be achieved is always working stable opening and closing plate rotating the event of a fire.

Since the opening and closing plate operating shaft 1 is fitted and fixed to the angular insertion groove 23 at the center of the upper surface of the shaft rod 20, the opening and closing plate operating shaft 1 is prevented from rotating, And it is advantageous that vibration and noise are prevented from being generated even if air pressure is generated while air moves to the duct.

When all the conditions are complete, only the bundle of fuse tubes can be replaced and replaced again for recycling.

Although the embodiments of the present invention have been described in detail with reference to the above embodiments, it is to be understood that the present invention is not limited to the above embodiments and that various changes and modifications may be made without departing from the spirit and scope of the invention.

1: opening / closing plate operating shaft 10: bracket
11: stopper 20: shaft
21: Operation spring latch 22: Spring latch
23: insertion groove 30: handle
31: rotating member 32:
33: latching groove 34: stopper latching rod
40: opening / closing plate operation spring 50: fuse tube
51: fuse tip 52: compression coil spring
53: Fuse operating rod 54: Fuse tip fixing pipe
55: Securing screw

Claims

A bracket 10 coupled to the outer surface of the duct and having a stopper 11 protruded at one side of the outer side thereof;
The bracket 10 is inserted through the center of the bracket 10 and has an angled insertion groove 23 formed at the center of the upper surface and an outer surface of the same size and shape as the inner surface of the insertion groove 23, A shaft rod 20 to which the operating plate 1 is inserted and fixed in a state in which it is not rotated;
And an operating sprung hole 21 formed integrally in the lower portion of the shaft rod 20 in the lower portion of the bracket 10 in a downwardly bent shape and having a plurality of spring stoppers 22 formed at regular intervals along the circumferential direction );
One end of the spring is fitted to the spring stopper 22 of the operating spring stopper 21 while the other end is fixed to one side of the inner side of the bracket 10, 40);
A handle 30 fixed to the end of the shaft rod 20 at the outer side of the bracket 10 and having a stopper stopper rod 34 fixed to one side thereof so as to be caught by the stopper 11 of the bracket 10;
A rotary member 31 coupled to an end of the handle 30 by a fastener;
A latching member (32) elastically coupled to form a latching groove (33) on one side of the rotary member (31);
A fuse tube 50 penetratingly fixed to one side of the bracket 10;
A fixing screw 55 penetrating the center portion and screwed on the upper portion of the fuse tube 50;
A fuse tip fixing pipe 54 screwed to the fuse pipe 50 by the fixing screw 55;
Section "

A fuse tip 51 which is inserted into the fuse tip fixing pipe 54 and is fixed by soldering in a state of being shaped like a letter;
The fuse tube 50 is positioned in a state of being closely contacted with the fuse tip 51 with an elastic force being held by the compression coil spring 52 inside the fuse tube 50, And a fuse operating rod (53) corresponding to the opening (33).

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The method according to claim 1,
Wherein the fuse tip fixing pipe is drawn out through a central portion of the fixing screw and the soldering portion of the fuse tip is positioned on the inner side of the fixing screw. Handle structure for damper.

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