KR200267930Y1 - Structure of exhaust duct - Google Patents

Abstract

The present invention relates to an exhaust duct of a hood installed to suck and discharge smoke and odor generated during cooking in various restaurants or kitchens, and to an exhaust duct structure for easily adjusting the length of the exhaust duct. In the hood consisting of a spiral duct fixed to communicate with the hood pan to discharge the smoke and odor generated during cooking, the upper duct protruding the exhaust duct forward and backward on the lower outer peripheral surface, and hooks from the upper end A fastening groove is formed in the form of a cut and the lower end is bent inward to form a fastening tube formed with a collecting part, and the lower end is bent in a wave form to form a tension part, and the connecting piece fixed to the fastening tube by a rivet, and the upper end in a ring shape. A fixed tube bent to be wound to form a hook and a lower portion of the fixed tube penetrating an insertion hole, and a predetermined size of space The exhaust duct is detachable, adjustable in length (height), and is made of a lower tube formed with a plurality of clamp grooves along the outer circumferential surface at regular intervals and the housing in which the spring and the ball are collimated to have a predetermined distance. It has a function to maintain hygienic cleanliness at all times.

Description

Exhaust duct structure of hood {STRUCTURE OF EXHAUST DUCT}

The present invention relates to the exhaust duct structure of the hood, more specifically, the exhaust duct of the hood is installed to suck and discharge the smoke and odor generated during cooking in various restaurants and kitchens, the length of the exhaust duct can be easily adjusted An exhaust duct structure of the hood is made possible.

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

Currently, the duct structure of the hood being used is largely made of a cylindrical tube or a corrugated tube shape having flexibility, and the latter pleated tube type duct structure is shown in the accompanying drawings, Figure 1, of the hood fan 102 The duct 104 having a predetermined length is communicated and coupled downward, the duct 104 is made of a corrugated pipe form 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 strong, so it is easily broken by small impacts and is normally exhausted. Because it cannot perform the function and the corrugated pipe is folded to adjust the length, condensation phenomenon is caused by the oil mixed with the smoke when the smoke and odor are discharged, and water (contaminated water) accumulates at the folded part. Alternatively, when the length of the duct is adjusted, the stagnant water falls into the downward direction where cooking is performed and contaminates food.

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

The present invention is to solve the conventional end as described above, the purpose is to install the hood in order to discharge the smoke or odor generated when cooking food in various restaurants or kitchens, the duct of the hood detachable and Easy to assemble and easy to adjust the length so that the duct can be positioned at the proper height when using the hood, and the water collecting part is formed inside the duct to drain the water due to condensation caused by moisture (oil) during discharge To provide a new type of exhaust duct structure to prevent the hood.

In order to achieve the above object, the present invention is installed in various restaurants or kitchens in the hood made of a spiral duct fixed to communicate with the hood pan to discharge the smoke and odor generated when cooking food to the outside, the exhaust duct is The upper tube with fixed shaft protruding forward and backward on the outer peripheral surface of the lower surface, a mounting groove which is cut in the form of hooks from the upper end is formed, the lower end is bent inward to form a fastening tube formed with a collecting part, and the lower end is bent in a wave form The connecting piece is formed and fixed to the fastening tube by rivets, and the upper end is bent to be wound in a ring shape to form a hook, and the lower end is bent to have a fixed tube and a predetermined size of space, and springs and balls are installed. The housing and the lower tube formed with a plurality of clamp grooves along the outer circumference at regular intervals It has the characteristics made.

1 is a side schematic view showing a conventional hood device;

2 is an exploded perspective view illustrating an exhaust duct of a hood according to the present invention;

3 is a perspective view showing an exhaust duct according to the present invention,

4 is a longitudinal sectional view showing an exhaust duct according to the present invention;

Figure 5 is an enlarged cross-sectional view of the main portion of the exhaust duct according to the present invention.

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

1: Exhaust duct 2: Hood

4: spiral duct 10: upper pipe

12: Fixed shaft 20: Fastening tube

22: home 24: catcher

30: connection piece 32: tension part

34: Rivet 40: Fixed tube

42: hook 44: insertion hole

50: housing 52: spring

54: ball 60: lower part

62: clamp groove 64: suction pipe

Hereinafter, the present invention in more detail by the accompanying drawings as follows.

2 to 5, the upper tube 10 of the exhaust duct 1 according to the present invention is fixed shaft 12 protrudes forward and rear on the lower outer peripheral surface, the fastening tube 20 is the upper end Mounting groove 22 is formed from the hook shape is formed from the lower end is bent inward to form the collecting portion 24, the connecting piece 30 is the lower end is bent in a wave form, the tension portion 32 is formed and rivets It is fixed to the fastening pipe 20 by 34.

In addition, the fixed tube 40 is bent so that the upper end is wound in a ring shape, the hook 42 is formed, the insertion hole 44 is penetrated through the lower portion, the housing 50 is bent to have a space portion of a predetermined size spring 52 ) And the ball 54 is interpolated and coalesced, the lower tube 60 is formed at a predetermined interval and a plurality of clamp grooves 62 are formed along the outer circumferential surface and the suction tube 64 in the form of a fallopian tube is coupled to the lower end.

4 is a longitudinal sectional view showing an exhaust duct according to the present invention, Figure 5 is an enlarged cross-sectional view of the main portion of the exhaust duct according to the present invention, the upper tube 10 to the spiral duct (4) fixed to communicate with the hood fan (2) ) Is fixed and coupled so as to communicate with each other, the fastening tube 20 is fitted into the fixing groove 12 protruding from the upper tube 10 to be fitted, and the connecting piece 30 is connected to the rivet 34. It is shown to be fixed and coupled to the lower fastening pipe (20).

In addition, the tension piece 32 formed at the lower end of the connecting piece 30 is fitted with the fixing tube 40 having the hook 42 formed at the upper end thereof, and the housing 50 is interposed with the ball 54 by the spring 52. Fixed and coupled so that a part of the ball 54 is exposed to the insertion hole 44 formed in the lower portion of the fixed tube 40 in a coalesced state, and the lower tube 60 is fitted to the fixed tube 40 to be coupled. The clamp groove 62 formed on the outer circumferential surface is inserted into the housing 50 and pressed and restrained by the ball 54 which is mounted so that a part of the clamp groove 62 is exposed to the insertion hole 44 by the spring 52. Indicates.

At this time, the lower end of the fastening tube 20 is bent inward to form a collecting portion 24, the lower tube 60 is adjustable in length by the elastic force of the ball 54 by the spring 52 To be combined.

Referring to the use state of the present invention as follows.

2 to 5, the upper tube 10 protruding the fixed shaft 12 protruding forward and rearward on the lower outer circumferential surface, and the mounting groove 22 to be cut in the form of hooks from the upper end is formed and the lower end Fastening pipe 20, which is bent inwardly to form a collecting portion 24, and the lower end is bent in a wave form, the tension portion 32 is formed and a connecting piece fixed to the fastening pipe 20 by a rivet 34 ( 30), the upper end is bent to be wound in a ring shape, the hook 42 is formed and the lower end of the fixed tube 40 through which the insertion hole 44 is penetrated, and bent to have a space of a predetermined size, the spring 52 and the ball. The hood 100 is provided with a housing 50 in which 54 is installed, and an exhaust duct 1 formed of a lower tube 60 having a plurality of clamp grooves 62 formed along the outer circumferential surface at regular intervals. In order to inhale and discharge smoke and odor generated when cooking in a restaurant or kitchen, Separate fixing means to install the fan hood (2) and the spiral duct (4) by using the (a fastening bolt or bracket drawings No ji shown).

In this state, as shown in Figures 3 and 4 of the accompanying drawings, the upper tube 10 is coupled to communicate with the lower end of the spiral duct (4), mounted on a fixed shaft 12 of the upper tube (10) Insert the groove 22 to the fastening pipe 20 is coupled, and then using the rivet 34 to couple the connecting piece 30 to the fastening pipe 20, the tension portion formed in the lower end of the connecting piece (30) A hook 42 formed at the upper end of the fixed tube 40 is fitted to the 32 to press and couple the fixed tube 40.

At this time, the insertion hole 44 is formed in the lower portion of the fixing tube 40 and the housing 50 so that the ball 54 is in a state of being coalesced by the spring 52 so that the upper part is exposed through the insertion hole 44. ) Is fixed and combined.

In this way, when the coupling of the upper tube 10, the fastening tube 20, the connecting piece 30 and the fixed tube 40 is completed so as to communicate below the spiral duct (4) installed to communicate with the hook pan (2) , The lower tube 60 is coupled to the fixed tube 40 by having a predetermined length, wherein the lower tube 60 is caused by the elastic force of the ball 54 by the clamp groove 62 formed on the outer circumferential surface thereof. Compressed and combined state is achieved.

Therefore, since the lower tube 60 is installed to have elasticity by the spring 52 inserted into the housing 50, the portion exposed to the inner side of the fixed tube 40 is positioned in the clamp groove 62 and thus compresses the compressive force. The lower tube 60 is pressed and combined.

In this state, the hood fan 2 is driven to discharge smoke and odor to the outside. At this time, the position (height) of the lower pipe 60 of the exhaust duct 1 for a smooth discharge is determined by the position desired by the user. Height).

Such, the adjustment of the lower tube 60 is due to the ball 54 and the clamp groove 62 formed in the lower tube 60 and the ball 54 is interposed in the housing 50, the lower tube 60 When lifting upwards or downwards), the vertical load applied by pushing or pulling is greater than the compressive load of the ball 54 in which the clamp groove 62 is compressed by the spring 52. As the spring 52 is compressed, the ball 54 is pushed backward and is separated from the clamp groove 62 so that the lower pipe 60 is restrained (fixed) by pressing, thereby freely moving up and down to adjust the length. will be.

In addition, when the appropriate position adjustment of the lower tube 60 is set, the ball 54 is inserted into the clamp groove 62 formed at the corresponding position is pressed and fixed.

Here, the operation switch and the electrical connection relationship for driving the hood fan (2) is due to a general electrical signal method, and detailed descriptions and drawings are omitted.

On the other hand, the smoke and odor generated when cooking food is discharged to the outside by the hood 100 provided with the exhaust duct 1 as described above, the inner circumferential surface of the spiral duct 2 by the water (oil) contained in the smoke Condensation occurs in the water fall phenomenon occurs or the inner circumferential surface is stained by oil grease stained at times, which is contaminated with water (contaminated water) by the water collecting part 24 formed at the lower end of the fastening pipe 20 Therefore, it is possible to prevent contamination of food due to falling water, and also, the upper pipe 10 and the fastening pipe 20 are coupled by the fixed shaft 12 and the mounting groove 22 and the connection pipe 30 and the fixed pipe ( 40 is coupled to the tension portion 32 and the hook 42, the fixing tube 40 and the lower tube 60 is coupled by the ball 54 and the clamp groove 62 is installed by the spring 52 As it is installed, it can be attached and detached as needed, so it is easy to clean for hygiene.

In this way, the exhaust duct of the hood that is installed in various restaurants or kitchens to discharge the smoke and odor generated during cooking to the outside is removable, the length (height) can be adjusted, and the collection and collection function is provided. With this, the hood is easy to install, handle and manage, and it is easy to remove and remove the exhaust duct so that it is always hygienic and clean and smoke and odor from the exhaust duct. It is effective to increase the suction and discharge efficiency.

Claims (1)

In the hood made of a spiral duct (4) is installed in various restaurants or kitchens and fixed to communicate with the hood pan (2) to discharge the smoke and odor generated when cooking food to the outside, The exhaust duct (1) is coupled to the spiral duct (4) to be removable and adjustable in length (height), The exhaust duct 1 includes an upper tube 10 in which the fixed shaft 12 protrudes forward and backward on a lower outer circumferential surface thereof; A fastening tube 20 having a hook groove 22 formed in a hook form from an upper end portion and a lower end portion being bent inwardly and formed with a water collecting portion 24; A connection piece 30 having a lower end bent in a wave form to form a tension part 32 and fixed to the fastening pipe 20 by rivets 34; A fixing pipe 40 through which an upper end is bent so as to be wound in a ring shape, and a hook 42 is formed and an insertion hole 44 is passed through the lower end thereof; A housing 50 that is bent to have a space portion of a predetermined size and in which the spring 52 and the ball 54 are stacked; Exhaust duct structure of the hood, characterized in that consisting of a lower tube 60 formed with a plurality of clamp grooves 62 along the outer circumferential surface at regular intervals.