KR200280902Y1 - Exhaust duct structure of hood fan - Google Patents

Abstract

The present invention relates to the exhaust fan duct structure of the hood fan, the length adjustment is made according to the multi-stage coupling structure of the duct pipe in order to prevent the leakage phenomenon at the connection between the duct pipe and to make the removable structure easy to clean inside Is to.

The present invention for realizing this, the blower main body 10, the motor 12 for driving the impeller 11 is mounted therein, the structure of the multi-stage in communication with the blower base body 10 to enable the stretching of the length In a typical exhaust duct structure comprising a duct pipe (1) constituting the duct pipe, a suction part (2) coupled to a lower end of the duct pipe (1) for sucking indoor smoke and odors: (1) the connection portion is provided with a guide ring 5 of soft material for guiding the oil flowing down from the upper portion to prevent the leakage into the gap to the lower portion; The lower end of each of the duct pipe 1 is provided with a bushing (4) for preventing the mutual separation.

Description

Exhaust duct structure of hood fan {EXHAUST DUCT STRUCTURE OF HOOD FAN}

The present invention relates to the structure of the exhaust duct of the hood, more specifically, to effectively control the duct height in the exhaust duct installed to forcibly discharge the smoke and odor generated when cooking food in various restaurants or kitchens to the outside The exhaust duct structure of the hood fan to make it possible.

In general, a hood is a type of exhaust treatment apparatus installed to discharge smoke or odors in various restaurants or kitchens, and is mainly formed of a tube fan having a constant length and a hood fan rotated by an electric motor. It consists of ducts and consists of various forms depending on the installation location and purpose.

Currently, the duct structure of the hood being used is made of a large cylindrical tube or a corrugated tube shape having flexibility, the latter duct structure of the corrugated pipe form a constant downward of the hood fan 102 as shown in FIG. The duct 104 having a length is in communication. Combined, the duct 104 is made of a corrugated pipe shape of a material having a non-combustible and flexible.

However, the duct of the conventional hood as described above is flexible and made of a corrugated pipe shape, although the length can be adjusted in a relatively free position movement and foldable form, but the appearance is not robust, so that damage is easily caused by a small impact. There is a problem that does not perform the normal exhaust function.

In addition, the conventional duct takes the state that the corrugated pipe is folded to adjust the length, condensation phenomenon is generated by the oil mixed in the smoke during the discharge of smoke and odor, water (contaminated water) is accumulated in the folded portion, As such, the accumulated water falls down to where the duct length is being cooked and contaminates food.

In addition, the conventional duct of the hood is fixed, it is difficult to remove after installation has a problem that the separation, cleaning for sanitary cleaning is difficult.

On the other hand, in order to improve such a closed end, the technology proposed recently forms a multi-stage duct pipe structure rather than a corrugated pipe, and a water collecting part is formed on the inner circumferential wall of the pipe, but in such a technology configuration, it is caused by condensation. In the process of flowing water to the collecting part side, a problem occurs in which water is leaked at the connection part between the pipes.

The present invention has been proposed to improve the above problems in the prior art, and has an object to prevent the leakage of water, such as oil in the connection between the pipes in a multi-stage duct pipe structure.

Another object of the present invention is to facilitate the internal cleaning by using the assembly structure that can be easily removable parts.

1 is a schematic view of a conventional general exhaust duct.

Figure 2 is a perspective view of the exhaust duct according to an embodiment of the present invention.

Figure 3 is a half cross-sectional view showing a falling state of the present invention exhaust duct.

Figure 4 is a half sectional view showing a raised state of the present invention exhaust duct.

5 is a detailed view of the main portion of FIG.

5a is an enlarged view of a portion A;

5b is an enlarged view of a portion B. FIG.

5C is an enlarged view of part C.

Figure 6 is a bottom view of the present invention exhaust duct.

<Explanation of symbols for the main parts of the drawings>

1: duct pipe 2: suction part

3: collecting part 4: bushing

5: guide ring 6,7,8: rope guide plate

9: rope hanger 10: air blowing base body

14: drive motor 15: pulley

20: wire rope

The object of the present invention is an air blower main body having an impeller and a motor mounted therein, a duct pipe having a multi-stage structure in communication with the air blower main body to enable expansion and contraction of length, and provided at a lower end of the duct pipe to provide indoor smoke and odor. In a conventional exhaust duct structure including a suction tube-shaped suction portion for suction and a water collecting portion provided on the inner circumferential wall of the intake portion, the oil flowing down from the upper portion leaks into the connection portion between the respective duct pipes. It is possible to achieve through the exhaust duct structure of the hood fan, characterized in that it is provided with a guide ring of soft material for guiding to the lower portion to prevent it.

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

Figure 2 is a perspective view of the device according to an embodiment of the present invention, Figure 3 is a half cross-sectional view for showing the internal configuration, the impeller 11 and the intake motor 12 is mounted on the blower main body 10 is multistage The duct pipe 1 is in communication with each other, the lower end duct pipe 1c connected to the lowermost part of the duct pipe 1 is assembled with a suction part 2 forming a fallopian tube shape, and the suction part 2 ) Is provided with a water collecting part 3 for collecting oil and the like flowing along the wall surface of the duct pipe. At this time, the catching net (3 ') for preventing the inflow of foreign matter into the duct is integrally formed with the collecting part (3).

A leaf spring 19 is coupled to the lower duct pipe 1c by rivets, and the projection 2a is installed in a coalescing manner by the leaf spring 19, and the projection 2a is provided on the corresponding suction part 2a. The insertion hole (2b) that can be inserted is formed so that the separation, coupling of the suction unit (2) for internal cleaning can be easily made.

In addition, as shown in FIGS. 4A and 4B, bushings 4 are screwed to each lower end of the upper duct pipe 1a and the stop duct pipe 1b to hold the center of the duct pipe and to increase the elevation height. The upper and lower duct pipes 1b and the lower duct pipes 1c are provided with guide rings 5 made of soft rubber so that oil flowing from the upper part is not leaked into the gap between the pipes. It can be flowed along the inner wall surface without.

On the other hand, the lifting operation for the multi-stage duct pipe (1) is made by the wire rope 20, in order to support the position of the wire rope 20 to the upper end of each duct pipe (1a, 1b, 1c) Rope guide plates 6, 7, and 8 are installed, among which pulleys 15 are connected by rope hangers 9 at the lowest rope guide plates 8, and the wire ropes 20 are twisted. It is to be rotated forward and backward by the drive motor (14).

In the figure, reference numeral 13 denotes an operation unit for applying a selective control signal to the drive motor 14 and the impeller motor 12 for the lifting operation and the intake operation.

The operation state of the present invention constituting such a configuration will be described below.

As shown in FIG. 3, when the impeller 11 is operated in a state in which the duct pipe 1 is lowered, a strong suction force is generated inside, and smoke and odor generated during cooking of food in the room are suction parts 2. It is introduced through the duct pipe (1) is introduced through.

At this time, dew condensation may occur on the inner circumferential surface of the duct pipe 1 due to moisture (oil) contained in the smoke, and dropping may occur, or the generated water may be dropped along the wall surface of the duct pipe 1 to collect water. In the process of being lowered, the leakage is prevented by the guide ring (5) provided in the connection portion of each duct pipe (1a, 1b, 1c) can be gradually guided to the suction part (2) side. .

In this manner, when the cooking of the food is completed, the duct pipe 1 is raised. This operation is performed by the user by controlling the operation unit 13.

That is, when the driving motor 14 is driven by the application of the control signal, the pulley 15 subjected to the rotational force rotates in the forward direction, whereby the wire rope 20 is connected to the rope guide plates 6, 7, and 8. As the center position is supported while being wound, the lower duct pipe 1c having the tip connected to the rope hanger 9 is gradually raised.

And accordingly, the suspended duct pipe (1b) is raised to the inside of the upper duct pipe (1a) to finally achieve a state of non-use as shown in Figure 4, such a duct pipe lifting and lowering operation is the wire rope (20) It can be seen that it can be made automatically by the winding or unwinding operation of).

On the other hand, when the oil is collected in the water collecting part (3) according to the use as described above, it should be discharged and the internal cleaning from time to time, this embodiment is easy for the suction part (2) from the duct pipe (1) for this purpose. Can be separated.

That is, as shown in FIG. 5C, when the projections 2a on both sides that are elastically supported by the leaf springs 19 are inserted and supported in the removal holes 2b of the suction part 2, the projections 2a are pressed. By the release of the support force by the suction unit 2 can be easily separated as shown in the perspective view of FIG.

Therefore, after discharging the oil collected in the water collecting part 3 of the separated suction part 2, it can be seen that the internal cleaning of the duct pipe 1 as well as the suction part 2 can be easily performed. .

In addition, although specific embodiments of the present invention have been described and illustrated above, it is obvious that the exhaust duct structure of the present invention may be variously modified and implemented by those skilled in the art.

For example, in the above embodiment, the duct pipe has a coupling structure of three stages of upper, middle, and lower, but the duct pipe may be deformed in multiple stages according to the ceiling height of the room.

Therefore, such modified embodiments should not be individually understood from the technical spirit or the prospect of the present invention, and such modified embodiments shall fall within the appended utility model registration claims of the present invention.

As described above, the hood fan duct structure of the present invention has a multi-stage pipe structure in which the length of the duct pipe can be easily adjusted, so that water and oil generated in the interior are leaked at the connection part between the pipes in the process of flowing down. It is possible to improve the reliability of the product by preventing.

Along with this, there is an advantage that the separation structure of the intake unit can be easily detached, thereby making it easier to collect the oil collected in the collecting section as well as the internal cleaning.

Claims (4)

The blower main body 10 in which the motor 12 for driving the impeller 11 is mounted therein, and the duct pipe 1 which communicates with the blower main body 10 to form a multi-stage structure to enable the stretching of the length. In the conventional exhaust duct structure, which is coupled to the lower end of the duct pipe 1 and comprises a suction unit 2 for sucking indoor smoke and odor: The connecting portion between the duct pipes (1) is provided with a guide ring (5) of soft material for guiding the oil flowing down from the upper portion to prevent the leakage into the gap to the lower portion; Exhaust duct structure of the hood fan, characterized in that the lower end of each duct pipe (1) is provided with a bushing (4) for preventing the mutual separation. The method according to claim 1, A projection part 2a is formed on the outer wall surface of the lower pipe 1c by protrudingly coupled thereto, and the projection part 2a is elastically supported by a leaf spring 19; And a detachable hole (2b) into which the protrusion part (2a) can be inserted is formed at a corresponding position of the suction part (2) to be detachable. The method according to claim 1, The suction part 2 is provided with a catching net (3 ') for preventing the inflow of foreign matter, the catching net (3') is characterized in that the hood fan, characterized in that configured integrally with the collecting part (3) Exhaust duct structure. The method according to claim 1, Exhaust duct structure of the hood fan, characterized in that the operation unit 13 for controlling the impeller drive motor 12 and the wire rope 20 drive motor 14 is provided as a unit.