CN203190477U - Separate range hood - Google Patents

Abstract

The utility model provides a disconnect-type range hood, be equipped with an entry end in the one end of the collection bellows of a suction hood, a long tube is connected to the entry end, an air exhaust device is connected to the one end of long tube, the bottom of collection bellows is equipped with a long and narrow opening exhaust opening down, long and narrow exhaust opening and entry end intercommunication, the front end of long and narrow exhaust opening is equipped with long and narrow opening air blow groove down, and long and narrow exhaust opening and long and narrow air blow groove set up between the preceding terminal surface and the rear end face of suction hood, and preceding terminal surface and the rear end face of parallel suction hood, a back plate is fixed to the rear end face below of suction hood, a long left riser is fixed to the left surface below of suction hood, a long right riser is fixed to the right flank below of suction hood. Therefore, when the air extractor is operated, the oil smoke and the harmful gas can be discharged from the narrow and long air extracting opening, when the air extractor is used for exhausting, the oil smoke and the harmful gas are prevented from leaking, and the noise can be avoided because the air extractor is isolated.

Description

Separate range hood

technical field

The utility model relates to a range hood, in particular to a separate type range hood which can eliminate oil fumes and harmful gases, prevent the leakage of oil fumes and harmful gases, and effectively avoid noise.

Background technique

Traditional kitchen range hoods are not much different from top suction hoods typically used in workplaces. In a very short distance below the circular suction port of this type of range hood, the upward speed of the fluid has become very small, which makes the upward suction force insufficient. Therefore, it is extremely vulnerable to people walking, fans or The effect of disturbed air flow such as air-conditioning operation makes the effective oil fume trapping area shrink to a very small range. In this way, the cooking fume close to the air inlet will escape with the flow of the disturbed airflow, endangering the health of cooks in the kitchen.

There is a range hood with an air curtain to overcome the above problems. Its main technical content is to set an airflow that blows upwards obliquely on the front side of the flow table, and to set a slit-shaped exhaust hood above the stove top, and to make the left and right sides of the stove top completely transparent as a supplementary airflow. It is used for air, and makes the blowing and sucking air flow form an almost two-dimensional air curtain. Moreover, the flow field conforming to the principle of aerodynamics will make the oil fume and toxic gas between the oblique air curtain and the rear wall stably brought to the upper suction hood by the air flow and discharged.

When in use, the above-mentioned range hood can indeed effectively remove and block oily fumes and harmful gases without strongly disturbing the airflow, and it can also prevent people from walking in front of the kitchen table and slightly disturbing the airflow (about 20 cm/s) Disturbance speed below) and the leakage caused by it is minimized. However, the range hood sucks in air through the unobstructed space on the left and right sides of the stove top to replenish air, so that a two-dimensional air curtain facing the cook is formed. Therefore, although it can form a strong blocking effect on the disturbing airflow in front of the countertop, it is difficult to completely exclude other slightly strong disturbing airflows from all directions in the kitchen space, and when the disturbing airflow acts on the left and right sides of the stove top At the same time, because the left and right sides of the stove top are hollowed out as the air supply space, the disturbed air flow from the side will pass through the air supply space and destroy the air curtain structure, greatly reducing the ability to remove oily smoke. And because the above-mentioned two-dimensional air curtain type oil fume exhaust must be equipped with blowing and exhausting devices at the same time, it is quite troublesome to replace or install, which will increase the cost of equipment and manpower.

Furthermore, in order to avoid the weakening of the suction power to provide stronger suction, the conventional range hoods all install a blower directly above the suction hood to extract the oil fumes. Makes quite a lot of noise.

Utility model content

One purpose of this utility model is to provide a separate range hood that can block the turbulent airflow from the side to form a complete upward guiding airflow to eliminate oil fumes and harmful gases and prevent oil fumes and harmful gases from leaking outwards. .

An object of the present utility model is to provide a separate range hood that can effectively avoid generating noise in an indoor workplace when the blower is running to suck oily fumes and harmful gases.

In order to achieve the above purpose, the utility model provides a separate range hood, comprising:

A suction hood, which is provided with an air collection box, one end of the air collection box is provided with an inlet port for air extraction, the inlet port is connected to a long pipe, and the bottom of the air collection box is provided with a long and narrow air suction port with the opening facing downwards, the suction port The air port communicates with the inlet port, and the front end of the air suction port is provided with a long and narrow air blowing groove with the opening facing downwards, and the air blowing groove is connected with a blowing device; between the rear end faces and parallel to the front end face and the rear end face;

An air extraction device is provided with an air inlet end and an air outlet end, and the air inlet end is connected to one end of the long pipe;

a rear plate, fixed below the rear end surface of the suction hood;

An elongated left vertical plate is fixed under the left side of the suction hood; and

An elongated right vertical plate is fixed below the right side of the suction hood.

Further, wherein, the air extraction device is an electric blower.

Further, it also includes a protective box, and an accommodating space is formed in the protective box, accommodating and positioning the air extraction device.

The utility model can form a complete upward guiding airflow, and then remove oil fumes and harmful gases. Therefore, it can directly replace the traditional range hood without replacing other kitchen utensils. It is quite convenient in use and installation. When the gas device is running to extract oily fumes and harmful gases, it can effectively avoid noise and ensure the tranquility of the indoor workplace.

Description of drawings

FIG. 1 is a schematic perspective view of a preferred embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of a preferred embodiment of the present invention installed on a wall.

Fig. 3 is a schematic perspective view of another embodiment of the air blowing groove of the preferred embodiment of the present invention.

Fig. 4 is a diagram of the use state of the preferred embodiment of the present invention during exhaust.

Fig. 5 is a diagram of the use state of the gas generating device in a preferred embodiment of the present invention when generating high-temperature gas.

In the figure, the separated range hood 1 wall 11

Platform 12 Gas production device 13

Trailing edge 131 Leading edge 132

Suction hood 2 Air collection box 21

Space 211 Bottom plate 212

Inlet port 213 Long pipe 214

Air suction port 22 Blowing groove 221

Left blowing slot 2211 Right blowing slot 2212

Blowing device 222 Front end face 23

Rear end face 24 The first air supply space 25

The second air supply space 26 The third air supply space 27

The fourth air supply space 28 Air extraction device 3

Protective box 31 Accommodating space 32

Inlet port 33 Outlet port 34

Elongated left vertical plate 4 first guide part 41

Elongated right vertical plate 5 second guide part 51

rear plate6.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the utility model and implement it, but the examples given are not intended to limit the utility model.

The utility model separated range hood comprises a suction hood 2, an air extraction device 3, a back plate 6, an elongated left vertical plate 4 and an elongated right vertical plate 5. Wherein, the suction hood 2 is provided with a wind collecting box 21, and the wind collecting box 21 is provided with an inlet port 213, and the inlet port 213 is connected with a long pipe 214. The bottom of the air collecting box 21 is provided with an air extraction port 22, the air extraction port 22 communicates with the inlet port 213, the front end of the air extraction port 22 is provided with an air blowing groove 221, and the air blowing groove 221 communicates with the air blowing device 222; and the air extraction device 3 is provided with The air inlet 33 and the air outlet 34, the air inlet 33 is connected to one end of the long pipe 213; the rear plate 6, the elongated left vertical plate 4 and the elongated right vertical plate 5 are respectively fixed on the rear end surface and the left side of the suction hood 2 face and right side below.

Please refer to Fig. 1 and Fig. 2, which is a preferred embodiment of the utility model separate range hood 1, which includes a suction hood 2, a suction device 3, a long left standing Plate 4, an elongated right vertical plate 5 and a rear plate 6.

The rear end face of this suction hood 2 is installed on a wall 11, and is positioned at the top of a platform 12, and the table top of this platform 12 is provided with a burner, and the top of this burner can be provided with pot, and this burner is set as The gas generating device 13 , wherein the side of the gas generating device 13 facing the wall 11 is defined as a rear edge 131 , and the side opposite to the rear edge 131 and away from the wall 11 is defined as a front edge 132 . During implementation, the gas generating device 13 may also include a pot, or other utensils that can generate harmful gas.

The air suction hood 2 is provided with a wind collecting box 21, which is a roughly rectangular shell with a space 211 formed inside. The air suction port 22 and a long and narrow air blowing groove 221 with the opening facing down, and the long and narrow air suction port 22 and the air blowing groove 221 are located between the front end surface 23 and the rear end surface 24 of the suction hood 2, and are parallel to the front end surface 23 and the rear end surface. End face 24. The elongated air blowing groove 221 is communicated with an air blowing device 222 for blowing air downwards; Groove 221 also can be positioned at the same straight line, and the left blowing groove 2211 and the right blowing groove 2212 of tool interval are formed; The air blow holes are arranged at intervals. The top of the wind collecting box 21 is provided with a circular inlet 213 , and the inlet 213 is connected to one end of a long tube 214 .

The air extraction device 3 is accommodated and positioned in an accommodating space 32 inside a protective box 31, and the air extraction device 3 is provided with an air inlet 33 and an air outlet 34, when the other end of the long tube 214 passes through the wall 11 Afterwards, it is connected with the intake port 33 of the air extraction device 3 . During implementation, the air extractor 3 is an electric blower, an exhaust fan or other fluid machines capable of extracting air.

This elongated left vertical plate 4 is roughly rectangular, and its top is fixed below the left side of the wind collecting box 21 so that it extends downward from the left side of the wind collecting box 21. The front end right side of the elongated left vertical plate 4 is set There is an arc-shaped first guide part 41, the horizontal width W of the elongated left vertical plate 4 is not less than the horizontal distance W1 between the rear edge 131 of the gas generating device 13 and the wall 11, and the horizontal width W1 of the elongated left vertical plate 4 The length H of the facade is not less than the height H1 from the top of the platform 12 to the bottom of the elongated left vertical board 4 .

The elongated right vertical plate 5 and the elongated left vertical plate 4 are symmetrical to the left and right sides of the wind collecting box 21, and the top of the elongated right vertical plate 5 is fixed below the right side of the wind collecting box 21, so that the wind collecting box 21 The right side of the elongated vertical plate 5 extends downwards, and the left side of the front end of the elongated right vertical plate 5 is provided with an arc-shaped second guide portion 51. The horizontal width of the elongated right vertical plate 5 is not less than the rear of the gas generating device 13. Edge 131 to the horizontal distance between wall 11, the facade length of this elongated right vertical board 5 is not less than the height of platform 12 tops to elongated right vertical board 5 bottoms.

In this way, the front end face of the elongated left vertical plate 4 and the lower side of the left side front end of the suction hood 2 form a roughly rectangular first air supply space 25, and the front end face of the elongated right vertical plate 5 and the air suction hood The bottom of the front end of the right side of 2 forms a roughly rectangular second air supply space 26 . And a roughly rectangular third air supply space 27 is formed between the bottom end of the elongated left vertical plate 4 and the left side of the platform 12, and a third air supply space 27 is formed between the bottom end of the elongated right vertical plate 5 and the right side of the platform 12. A roughly rectangular fourth air supply space 28 .

And this back plate 6 is a rectangular flat plate, and its top is fixed below the rear end surface 24 of wind collecting box 21, and the elevation length of back plate 6 is not less than the height from platform 12 to the bottom of back plate 6, and the left side of back plate 6 adjoins The rear end face of the elongated left vertical plate 4 and the right side of the rear plate 6 are adjacent to the rear end face of the elongated right vertical plate 5 .

In this way, as shown in Figure 4, when the utility model is fixed on the wall 11, and the gas generating device 13 starts to generate oil fumes or other harmful gases, the operation of the air extraction device 3 will make the narrow and long air suction port 22 start to pump upwards , and through the high-speed suction effect of the narrow and long air suction port 22, an oblique airflow is formed under the front end of the wind collecting box 21 to drive the oil fume or other harmful gases produced by the gas generating device 13 to rise, and pass through the inside of the wind collecting box 21 After the space 211, the inlet end 213 and the long pipe 214 at the top of the wind collecting box 21, it is discharged from the air outlet 34 of the air extraction device 3 installed outside. During implementation, the air extraction device 3 can also be installed indoors, and the air outlet 34 of the air extraction device 3 communicates with the outside, which can also achieve the effects of quietness and exhaust.

In addition, due to the blocking of the elongated left vertical plate 4 and the elongated right vertical plate 5, the disturbed air flow from the side can be resisted, so as to prevent the above-mentioned oblique air flow structure from being destroyed, and due to the barrier of the rear plate 6, it can Prevent oil fumes or other harmful gases from leaking outward from the rear end surface 24 of the air collecting box 21 to the left side of the long left vertical plate 4 and the right side of the long right vertical plate 5, thereby forming a complete upward guiding airflow, so as to Eliminate fumes and harmful gases.

And as shown in Figure 5, when gas generating device 13 produces high-temperature gas, due to the expansion phenomenon of gas, oil fume will be made to diffuse toward the front end face 23 direction of suction hood 2, and the air blowing downwards of air blowing groove 221 now can be Prevent the high-temperature expansion gas from escaping from the front end of the bottom of the suction hood 2, and guide the high-temperature gas to enter the narrow and long air suction port 22 to prevent the high-temperature gas from leaking.

Therefore, the utility model has the following advantages:

1. The utility model draws air through the long and narrow air suction port 22, and blocks the disturbed air flow from the side with the long left and right vertical plates 4, 5. Therefore, a complete upward guiding air flow can be formed to eliminate oil fume and harmful gases, and prevent oil fume and harmful gases from leaking out.

2. The utility model forms a complete upward guiding airflow through the combination of the narrow and long air suction port 22, the long left and right vertical plates 4, 5 and the rear plate 6, and then removes oil fumes and harmful gases. Therefore, it can be used without When replacing other kitchen utensils, it directly replaces the traditional range hood, which is very convenient to use and install.

3. The utility model separates the suction device 3 from the suction hood 2. Therefore, when the suction device 3 is running to suck oil fumes and harmful gases, noise can be effectively avoided to ensure the tranquility of the indoor workplace.

The above-mentioned embodiments are only preferred embodiments for fully illustrating the utility model, and the protection scope of the utility model is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present utility model are all within the protection scope of the present utility model. The scope of protection of the utility model shall be determined by the claims.

Claims (3)

1. a separate type smoke exhaust is characterized in that, comprising:

One air-suction cover, it is provided with an air collecting box, one end of this air collecting box is provided with an arrival end of Gong bleeding, this arrival end connects a long tube, this air collecting box bottom is provided with a long and narrow and downward opening bleeding point, this bleeding point is communicated with arrival end, and the front end of this bleeding point is provided with a long and narrow and downward opening blowing groove, and this blowing groove is communicated with a blowning installation; And this bleeding point and blowing groove are arranged between the front end face and rear end face of air-suction cover, and parallel this front end face and this rear end face;

One air extractor is provided with an inlet end and an outlet side, and this inlet end connects an end of this long tube;

One back plate is fixed on below the rear end face of air-suction cover;

One microscler left riser is fixed on below the left surface of air-suction cover; And

One microscler right riser is fixed on below the right flank of air-suction cover.

2. separate type smoke exhaust as claimed in claim 1 is characterized in that, wherein, this air extractor is power-actuated air blast.

3. separate type smoke exhaust as claimed in claim 1 or 2 is characterized in that, it also comprises a protective housing, forms an accommodation space, this air extractor of ccontaining location in this protective housing.

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