KR20180029457A - smoke exaust pipe and smoke discharge apparatus comprising the same - Google Patents

Abstract

The present invention relates to a pipe for discharging smoke and a smoke discharging device including the pipe, a movable pipe connected to the exhaust duct, a movable pipe movably coupled to the fixed pipe, and a movable pipe formed between the movable pipe and the fixed pipe, And a rotation preventing portion for guiding the up and down movement of the movable tube and preventing the movable tube from moving along the circumferential direction.

Description

TECHNICAL FIELD [0001] The present invention relates to a smoke ex- haust pipe and a smoke discharge apparatus including the same,

The present invention relates to a pipe for discharging smoke and a smoke discharging device including the same.

In restaurants and the like, there is a smoke discharging device for discharging the smoke generated when meat is burned. 1, the smoke discharging device 1a includes an exhaust duct 30a installed on a ceiling, a fixed pipe 11a connected to an exhaust duct 30a, a movable pipe (not shown) installed on a fixed pipe 11a And a lifting and holding unit 20a disposed in the fixed pipe 11a and connected to the movable pipe 12a to set the lifting and lowering of the movable pipe 12a.

The lifting and holding section 20a includes a reel 21a disposed in the fixed tube 11a and a wire 22a wrapped around the reel 21a and having an end connected to the movable tube 12a . The wire 22a can be wound and unwound on the reel 21a when the movable tube 12a ascends and descends. The wire 22a twists several wire strands.

Since the outer circumference of the movable tube 12a is in contact with the inner circumference of the fixed tube 11a, the movable tube 12a can be rotated around the inner circumference of the fixed tube 11a when lifting the movable tube 12a. Repeated rotation of the movable tube 12a caused frequent twisting of the wire 22a, which caused the twisted strands to loosen to form the wire. And the portion of the wire 22a where the twist occurs repeatedly is broken (see FIG. 2).

Registration Practical Utility Model No. 20-0390839 (2005.07.15.) Published Patent Application No. 10-2010-0112933 (October 20, 2010)

The present invention provides a technique for preventing rotation of a movable pipe that ascends and descends in a smoke discharge device.

According to an embodiment of the present invention, there is provided a smoke discharge pipe comprising: a fixed pipe connected to an exhaust duct; a movable pipe coupled to the fixed pipe so as to be able to ascend and descend; a movable pipe formed between the movable pipe and the fixed pipe, And prevents rotation along the circumferential direction.

Wherein the movable pipe is inserted at least partially into the fixed pipe, and the anti-rotation unit includes a rail formed along the longitudinal direction at an inner circumference of the fixed pipe, and a rail formed with a rail groove in which the rail is inserted, And may include a body.

The rail may protrude to a predetermined length in the direction of the center of the fixing pipe from the inside of the fixing pipe.

The outer circumferential diameter of the preventive body may be larger than the outer circumferential diameter of the movable tube.

The smoke discharge pipe may further include a scraper formed along an outer periphery of the prevention body and abutting an inner periphery of the fixing pipe. The scraper may wipe the inner periphery of the fixing pipe to introduce the smoke into the movable pipe.

The smoke discharging apparatus according to an embodiment of the present invention includes the smoke discharge pipe as described above, a lifting / holding unit connected to the movable pipe of the smoke discharge pipe, for setting the lifting / lowering position of the movable pipe, And an exhaust duct connected to the exhaust duct.

According to the embodiment of the present invention, since the rail formed in the fixing pipe 11 is inserted into the rail groove of the rotation preventing portion formed in the movable pipe, the movable pipe is prevented from rotating in the circumferential direction of the fixing pipe. Therefore, it is possible to prevent damage to the wire caused by the rotation of the movable tube.

According to the embodiment of the present invention, since the oil around the inner periphery of the fixed pipe is wiped by the scrapers formed in the rotation preventing portion, the oil around the inner periphery of the fixed pipe is not adhered to the outer periphery of the movable pipe. Thus, the outer circumference of the movable pipe can be prevented from being contaminated by oil.

1 is a schematic view showing a conventional smoke discharging device.
Fig. 2 is a photograph showing the wire of Fig. 1 being broken.
3 is a schematic view showing a smoke discharging apparatus according to an embodiment of the present invention.
FIG. 4 is an exploded perspective view of FIG. 3; FIG.
5 is a cross-sectional view taken along line VV of Fig. 3;
Fig. 6 is a sectional view of Fig. 3 taken along the line VI-VI. Fig.
7 is an enlarged view of a portion A in Fig.
8 is a schematic view showing a smoke discharging apparatus according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Like parts are designated with like reference numerals throughout the specification.

The pipe for discharging smoke according to an embodiment of the present invention can be applied to a smoke discharging device which is an embodiment of the present invention. Hereinafter, a smoke discharging device to which a pipe for discharging the smoke is applied will be described.

A smoke discharging device 1 according to an embodiment of the present invention will be described with reference to Figs. 3 to 7. Fig.

3 is an exploded perspective view of Fig. 3, Fig. 5 is a sectional view taken along the line VV in Fig. 3, Fig. 6 is a sectional view taken along the line VV in Fig. -VI line, and Fig. 7 is an enlarged view of a portion A in Fig.

3 to 7, the smoke discharging device 1 according to the embodiment of the present invention includes a pipe 10 for discharging the smoke, a lifting and holding part 20, and an exhaust duct 30.

The exhaust duct 30 may have a predetermined length, one side may be located indoors, and the other side may be located outdoors. The other end of the exhaust duct 30 is provided with a blower (not shown).

A plurality of smoke discharge pipes (10) are installed in the room and spaced apart from each other in the exhaust duct (30). The smoke generated in the process of baking the grilled water by the operation of the blower flows into the exhaust duct 30 through the smoke discharge pipe 10 and is discharged to the outside of the room.

The smoke discharge pipe (10) includes a fixed pipe (11), a movable pipe (12) and a rotation preventing portion (14).

The fixed pipe 11 and the movable pipe 12 have predetermined lengths and the upper portion of the fixed pipe 11 is connected to the exhaust duct 30 and the upper portion of the movable pipe 12 is connected to the fixed pipe 11 11 at least partially inserted. A lower portion of the movable pipe 12 is vertically penetrated through a central portion thereof and is provided with a fixed pipe 11 and an oil pan 13 for receiving oil or the like falling from the movable pipe 12.

The movable pipe (12) can move up and down along the inside of the fixed pipe (11). The distance between the grill (not shown) and the oil pan 13 can be adjusted according to the moving direction of the movable pipe 12. [

The lifting and holding unit 20 is provided on the fixed pipe 11 to set the movement position of the movable pipe 12. [ The lifting and holding unit 20 includes a reel 21 provided in the fixed pipe 11 and a wire 22 wound around the reel 21 and connected to the movable pipe 12. The wire 22 is wound or unwound on the reel 21 in accordance with the direction in which the movable tube 12 moves. When the user lifts the movable pipe 12 and places the oil pan 13 at a desired position, the movable pipe 12 is placed. At this time, the elastic force of the reel 21 supports the movable tube 12 through the wire 22, and the movable tube 12 is fixed without moving.

The fixed pipe 11 and the movable pipe 12 can be made of stainless steel, galvanized iron plate, aluminum plate, copper plate, or the like. A coating layer (not shown) for protecting the fixing pipe 11 and the movable pipe 12 is formed on the outer circumference of the fixed pipe 11 and the movable pipe 12.

The detailed structure of the fixed pipe 11, the movable pipe 12 and the lifting and holding unit 20 can be applied to a well-known structure of a fixed pipe, a movable pipe and a lifting and holding unit of a smoke discharging device. It is omitted.

The rotation preventing portion 14 includes a rail 141 and a prevention body 142 and prevents the movable tube 12 from rotating along the inner circumference of the fixing tube 11. [

The rail 141 has a pair of protruding pieces 141a, 141b and 141c spaced apart from each other and arranged along the inner circumference of the fixing pipe 11, and is formed long in the vertical direction. The rail 141 protrudes from the inner periphery of the fixed pipe 11 by a predetermined length in the direction of the center of the fixed pipe 11.

The inside of the prevention body 142 is vertically penetrated and at least a part of the lower side is inserted into the movable tube 12 and coupled thereto. The prevention body 142 and the movable tube 12 may be combined with a rivet, a projection, a groove, or the like.

The outer circumferential diameter of the prevention body 142 is larger than the outer circumferential diameter of the movable tube 12. [ An end (15) is formed between the outer circumference of the preventive body (142) and the outer circumference of the movable tube (12). The stage 15 is hooked on the lower end of the fixed tube 11 so that the movable tube 12 is not separated from the fixed tube 11. [

On the outer circumference of the preventive body 142, rail grooves 142a, 142b, and 142c in which the rails 141 are vertically disposed are formed. A plurality of rail grooves 142a, 142b, 142c are formed along the circumferential direction of the prevention body 142 at intervals. The bottom 143a and both side 143b of the rail grooves 142a, 142b and 142c are flat and the bottom 143a and the side 143b are at right angles. The side surfaces of the pair of protruding pieces 141a, 141b, 141c and the opposite side surfaces 143b face each other. Although the sides of the pair of protruding pieces 141a, 141b and 141c are illustrated as being separated from the both side surfaces 143b in FIGS. 5 and 6, the protruding pieces 141a, 141b, ) Can be contacted.

Since the rail 141 is inserted into the rail grooves 142a, 142b and 142c, the movable tube 12 is prevented from rotating in the circumferential direction of the fixed tube 11. [ Therefore, it is possible to prevent damage to the wire caused by the rotation of the movable tube (12).

The prevention body 142 may be made of synthetic resin or the like.

3 to 7, the rail 141 is formed on the fixed pipe 11 and the rail grooves 142a, 142b, and 142c are formed on the preventive body 142 coupled to the movable pipe 12. However, The rails 141 may be formed on the prevention body 142 and the rail grooves 142a, 142b and 142c may be formed on the fixing pipe 11. [ In addition, although the rail groove or the rail is formed in the preventive body 142, the preventive body 142 may be omitted. In this case, the rail groove or the rail may be formed directly on at least a part of the upper side of the movable pipe 12. [

In addition, although the projecting pieces and the rail grooves are shown by three, respectively, the projecting pieces and the rail grooves may be formed one by one.

According to another embodiment of the present invention, a ball (not shown) that is in rolling contact with the side surfaces of the projecting pieces 141a, 141b, and 141c may be provided on both side surfaces 143b. The ball can be drawn along the projecting pieces 141a, 141b, and 141c when the movable tube 12 moves. The movement of the movable tube 12 can be smoothly performed.

Another embodiment of the present invention further includes a SCRAPER 40 (see FIG. 8) with the components of the embodiment described with reference to FIGS. 3 to 7 intact.

The scraper 40 is formed along the upper surface of the prevention body 142 and contacts the inner circumference of the fixing pipe 11. [ The scraper 40 wipes the oil around the inner periphery of the fixed pipe 11 when the movable pipe 12 moves into the fixed pipe 11. The oil may flow into the movable pipe 12 and fall into the oil pan 13. Since the oil is wiped by the scrapers 40, the oil around the outer periphery of the movable pipe 12 does not touch the oil around the inner periphery of the fixed pipe 11, thereby preventing the outer periphery of the movable pipe 12 from being contaminated by oil can do.

In other respects, the configurations of the embodiments of Figs. 3 to 7 may be applied as they are.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of the right.

1: Smoke exhaust device 10: Smoke exhaust pipe
11: fixed tube 12: movable tube
13: Oil pan 14: Anti-rotation part
141: rails 141a, 141b, 141c:
142: preventing body 142a, 142b, 142c: rail groove
20: lifting and holding unit 21: reel
22: wire 30: exhaust duct
40: scraper

Claims (6)

A fixing pipe which can be connected to the exhaust duct,
A movable pipe movably coupled to the fixed pipe;
A rotation preventing member formed between the movable pipe and the fixed pipe to guide movement of the movable pipe along the circumferential direction,
And a duct for discharging smoke. The method of claim 1,
At least a part of which is inserted into the fixed pipe,
The rotation-
At least one rail formed along the longitudinal direction at the periphery of the fixed pipe and
And at least one rail groove coupled to the movable tube and having the at least one rail inserted therein,
Containing
Duct for smoke discharge. 3. The method of claim 2,
Wherein the rail is protruded at a predetermined length in a direction of an imaginary vertical center of the fixed pipe at an inner periphery of the fixed pipe. 3. The method of claim 2,
Wherein the outer circumferential diameter of the preventive body is larger than the outer circumferential diameter of the movable tube. 5. The method of claim 4,
Further comprising a scraper formed along an outer periphery of the prevention body and abutting an inner periphery of the fixing pipe, wherein the scraper wipes the inner periphery of the fixing pipe to introduce the molten metal into the movable pipe. A pipe for smoke discharge as defined in any one of claims 1 to 5
A lifting and retaining part connected to the movable pipe of the duct for exhausting smoke and setting a lifting position of the movable pipe;
An exhaust duct connected to the smoke discharge pipe
.

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