CN205842798U - Cooking fume remover - Google Patents

Abstract

A range hood comprises a gas suction hood, a left baffle and a right baffle. The air suction cover is approximately L-shaped and comprises a vertical part and a horizontal part, the vertical part is provided with at least one air suction opening which is horizontal and extends linearly in a long strip shape, and an air suction device is communicated with the at least one air suction opening; the left baffle and the right baffle are respectively fixed on the left side and the right side of the air suction cover, and the bottom ends of the left baffle and the right baffle downwards exceed the at least one air suction opening for respectively blocking the left side and the right side of the at least one air suction opening. Therefore, the air extractor can operate, when the air extracting opening extracts air upwards, the interference air flow on the left side and the right side of the air extracting opening is blocked, complete guide air flow is formed, oil smoke and harmful gas are smoothly discharged, and the exhaust efficiency is improved.

Description

Ventilator

technical field

The utility model relates to a range hood, in particular to a range hood which can form a complete guiding airflow and improve exhaust efficiency, and is suitable for factories, laboratories and kitchens.

Background technique

The traditional range hood is not much different from the top-suction hood generally used in the workplace. When this type of range hood is inhaled, the air and pollutants will enter through the suction port, and then be discharged to the outside through the duct. . Among them, the air flow velocity close to the suction port is relatively high, and the air flow velocity far away from the suction port will decrease rapidly as the distance away from the suction port increases. Therefore, within a very short distance below the suction port, the upward speed of the air has become very small, so that the upward suction force is insufficient, and it is very easy to be affected by turbulent airflow from people walking, fan or air conditioner operation, etc. Let oil fumes or pollutants escape with the flow of disturbed airflow.

In view of the above problems, the current effective improvement method is to add rectangular baffles on the left and right sides of the suction hood of the range hood, and set a suction port with the opening facing downward on the bottom surface of the suction hood. Strip-shaped, the air suction port includes two long sides and two short sides, and the two long sides are respectively parallel to the front end and the rear end of the suction hood. The top of the suction hood has an exhaust pipe, and the exhaust pipe is connected with an air extraction device such as a blower, so that when the air extraction device is running, the air is drawn upwards from the air outlet and discharged outside.

However, in actual use, since the air inlet is located on the bottom surface of the suction hood, and the left and right sides of the suction hood are respectively provided with rectangular baffles, the distance between the pollution source and the bottom surface of the suction hood will be separated by the height of the baffles. If the distance is too long, the power of the suction port to attract pollutants will become smaller and the exhaust efficiency will be reduced.

Utility model content

In view of this, in order to provide a structure different from the prior art and improve the above-mentioned shortcomings, the inventor has accumulated many years of experience and continuous research and development, so the utility model is produced.

An object of the present utility model is to provide a range hood, by providing at least one suction port that is horizontal and extends straight in a long strip on the upright part of the suction hood, and on the left side of the suction hood and The structure of the baffle plate is respectively set under the right side to solve the problem that the exhaust efficiency is reduced due to the insufficient suction force of the pollutants at the suction port of the existing range hood, and can form a complete guiding air flow to make the oil fume and harmful gas Smooth discharge to improve exhaust efficiency.

In order to achieve the purpose of the above-mentioned utility model, the range hood provided by the utility model includes a suction hood, a left baffle and a right baffle. Wherein, the suction hood is an L-shaped or approximately L-shaped shell, including an upright portion and a horizontal portion, and the upright portion is provided with at least one air suction port that is horizontal and extends straight in a strip shape, and at least one The opening of the air suction port faces the direction of the front end surface of the suction hood, and at least one air suction port is parallel to the front end surface and the rear end surface of the suction hood, and the suction hood is connected to a suction device, and the suction device communicates with at least one suction port; The left baffle is fixed on the left side of the suction hood for sealing most of the space on the left side surrounded by the upright part and the horizontal part. The left side of the air port; and the right baffle is fixed on the right side of the suction hood to close most of the space on the right side framed by the upright part and the horizontal part, and the bottom of the right baffle is downward beyond at least one suction port , for blocking on the right side of at least one air suction port.

During implementation, the top of the left baffle is connected to the left bottom of the horizontal portion of the suction hood, and the front and bottom of the left baffle are curved surfaces with one of single curvature or multiple curvatures.

During implementation, the front end and the bottom end of the left baffle form an inclined plane.

During implementation, the top of the right baffle is connected to the right bottom of the horizontal portion of the suction hood, and the front and bottom of the right baffle are curved surfaces with one of single curvature or multiple curvatures.

During implementation, the front end and the bottom end of the right baffle form an inclined plane.

In practice, the bottom of the upright portion includes at least one guide plane for guiding waste oil.

During implementation, the utility model also includes an oil container, the oil container is connected to the bottom of the upright part, and at least one through hole is provided on at least one guide plane of the upright part for guiding the waste oil into the container. in the oil container.

During implementation, the air suction port includes two long sides and two short sides, the two long sides are respectively parallel to the front end face and the rear end face of the suction hood, and the lower long side faces the side of the suction hood relative to the upper long side. The direction of the front end surface is convex forward.

For the convenience of having a deeper understanding of the utility model, it will be described in detail later.

Description of drawings

Figure 1: A schematic diagram of the three-dimensional appearance of a preferred embodiment of the present invention.

Figure 2: Front view of a preferred embodiment of the present invention.

Fig. 3: A sectional view of a preferred embodiment of the present utility model.

Figures 4 and 5: Front views of different arrangements of the single air suction port of the present invention.

Fig. 6: The use status diagram of the preferred embodiment of the present utility model.

Fig. 7, 8: The preferred embodiment of the utility model has the cross-sectional view of the left baffle and the right baffle with different shapes.

Fig. 9: The sectional view of the utility model with three air extraction ports.

Explanation of reference signs

Range hood 1 Suction hood 2

Horizontal part 21 Upright part 22

Guide plane 221 through hole 222

Air extraction pipe 23 Air extraction port 24

Elongated hole 241 Channel 242

Oil container 25 Left baffle 3

Right baffle 4 air extraction device 5.

detailed description

Please refer to FIGS. 1-3 , which is a preferred embodiment of the range hood 1 of the present invention, including a suction hood 2 , a left baffle 3 , a right baffle 4 and an air extraction device 5 . Wherein, the side or side of the range hood 1 close to the user is defined as the front end, the side or side opposite and away from the user is defined as the rear end, and when the user faces the range hood 1, the left side and the right side are defined.

The suction hood 2 is an L-shaped or roughly L-shaped casing, and a space is formed inside it. The suction hood 2 includes a horizontal portion 21 and an upright portion 22 . The top surface of the horizontal portion 21 passes through an air extraction pipe 23 to connect upwardly to the air extraction device 5, which is an exhaust fan, blower or other fluid machinery capable of extracting air. During implementation, the air extraction device 5 is positioned in the air extraction pipe 23, and the air extraction device 5 can also be installed outdoors or in a remote place through the air extraction pipe 23. The front end elevation of upright part 22 is provided with and is horizontal and with a strip-shaped left and right linearly extending one suction port 24, and the opening of suction port 24 faces the direction of the front end face of suction hood 2, and suction port 24 comprises two long sides and two short sides, the two long sides are respectively parallel to the front end face and the rear end face of the suction hood 2, and the lower long side protrudes forward in the direction towards the front end face of the suction hood 2 relative to the upper long side, for receiving The waste oil is made to flow down to the inside of the upright portion 22 , and the air suction port 24 communicates with the air suction device 5 . In practice, the air suction port 24 can also be composed of two shorter elongated holes 241 or a plurality of tunnels 242 as shown in FIGS. 4 and 5 .

The bottom of the upright portion 22 includes two V-shaped or roughly V-shaped flow guide planes 221 for guiding waste oil, and an oil container 25 is connected to the bottom of the upright portion 22, and the flow guide planes of the upright portion 22 221 is provided with a through hole 222 that runs through from top to bottom, for guiding the waste oil into the oil container 25 . In practice, the guide plane 221 can also be a flat plate inclined to the side of the upright portion 22, which can also achieve the effect of guiding waste oil.

The top end of this left baffle 3 is connected to the left side bottom end of the horizontal part 21 of suction hood 2, and the rear end of left baffle 3 is connected to the left front end of the upright part 22 of suction hood 2, and left baffle 3 The front end and the bottom end are curved surfaces with a single curvature. When the left baffle 3 is fixed on the left side of the suction hood 2, most of the left side space enclosed by the horizontal portion 21 and the upright portion 22 can be closed. The bottom end of the left baffle plate 3 surpasses the air suction port 24 downwards, so as to block the left side of the air suction port 24 .

The top end of this right baffle plate 4 is connected to the right bottom end of the horizontal portion 21 of the suction hood 2, and the rear end of the right baffle plate 4 is connected to the right front end of the upright portion 22 of the suction hood 2, and the right baffle plate 4 The front end and the bottom end are curved surfaces with a single curvature. When the right baffle plate 4 is fixed on the right side of the suction hood 2, most of the space on the right side surrounded by the horizontal portion 21 and the upright portion 22 can be closed. The bottom of the right baffle plate 3 surpasses the suction port 24 downwards, to block the right side of the suction port 24 .

Thereby, as shown in Figure 6, when the utility model is fixed on the wall, and a gas generating device starts to produce oil fumes or other harmful gases, the operation of the air extraction device 5 will cause the air extraction port 24 to start to draw air backwards, through The inhalation function of the air inlet 24 forms a downward slanting airflow and an upward slanting airflow respectively under the front end of the horizontal part 21 of the suction hood 2, so as to drive oil fumes or other harmful gases backward. flow, and after passing through the space inside the suction hood 2, it is discharged outside through the suction device 5. The accumulated waste oil will flow down into the oil container 25 through the through hole 222 on the guide plane 221 . And due to the blocking of the left baffle 3 and the right baffle 4, it can resist the disturbed airflow from the side to prevent the airflow structure of the intake air from being destroyed, so that the front end wind speed of the air suction port 24 is increased to form a complete air guide. Introduced air flow to remove oil fumes and harmful gases.

During implementation, the curved surface of the above-mentioned left baffle 3 and the curved surface of the right baffle 4 can also be as shown in Figure 7, the front end and the bottom end are curved surfaces with multiple curvatures; or as shown in Figure 8, the left baffle 3 The front end and the bottom end, and the front end and the bottom end of the right baffle 4 respectively form a slope, which can also achieve the effect of blocking the lateral disturbed airflow. And as shown in Figure 9, this suction port 24 also can be set as three and mutually parallel, or two, or more than three, can produce backward air intake airflow equally, to drive oil fume or other harmful gas to after flow.

To sum up, according to the content disclosed above, the utility model can indeed achieve the expected purpose. It provides a complete guiding airflow, so that oily smoke and harmful gases can be discharged smoothly, so as to improve the exhaust efficiency, and The range hood that can effectively remove waste oil is extremely valuable in industry, so a utility model patent application is filed according to law.

Claims (8)

1. a smoke exhaust, its near user or one side be defined as front end, reversely and away from one side of user Or one side be defined as rear end, user towards smoke exhaust with define left side and right side, it is characterised in that: this smoke exhaust bag Include:

One air-suction cover, it is L-shaped housing, including an erection part and a horizontal part, this erection part be provided with in level and with Linearly extended at least one bleeding point of strip, the opening of this at least one bleeding point towards the direction of the front end face of this air-suction cover, And the front end face of this at least one bleeding point this air-suction cover parallel and rear end face, this air-suction cover connects an air extractor, this dress of bleeding Put and connect with this at least one bleeding point；

One right baffle-plate, is fixed on the left side of this air-suction cover, for closing on the left of this erection part and this horizontal part major part surrounded by frame Space, the bottom of this right baffle-plate exceedes downwards this at least one bleeding point, for being barred from the left side of this at least one bleeding point；And

One right baffle plate, is fixed on the right side of this air-suction cover, for closing on the right side of this erection part and this horizontal part major part surrounded by frame Space, the bottom of this right baffle plate exceedes downwards this at least one bleeding point, for being barred from the right side of this at least one bleeding point.

2. smoke exhaust as claimed in claim 1, it is characterised in that: the top of this right baffle-plate is linked to this water of this air-suction cover The bottom, left side in flat portion, the front end of this right baffle-plate and bottom are to have single-curvature or the curved surface of the one kind of curvature of multi-curvature.

3. smoke exhaust as claimed in claim 1, it is characterised in that: the front end of this right baffle-plate and bottom form an inclined-plane.

4. smoke exhaust as claimed in claim 1, it is characterised in that: the top of this right baffle plate is linked to this water of this air-suction cover The bottom, right side in flat portion, the front end of this right baffle plate and bottom are to have single-curvature or the curved surface of the one kind of curvature of multi-curvature.

5. smoke exhaust as claimed in claim 1, it is characterised in that: the front end of this right baffle plate and bottom form an inclined-plane.

6. smoke exhaust as claimed in claim 1, it is characterised in that: the bottom of this erection part includes at least one water conservancy diversion plane, For guiding waste oil.

7. smoke exhaust as claimed in claim 6, it is characterised in that: also including an oil holder, this oil holder is linked to The bottom of this erection part, and at least one water conservancy diversion plane of this erection part is provided with the through hole run through up and down at least, useless for guiding Oil enters in this oil holder.

8. smoke exhaust as claimed in claim 1, it is characterised in that: this bleeding point includes two long limits and two minor faces, two Individual long limit is parallel with the front end face of this air-suction cover and rear end face respectively, and long limit, lower section relative to long limit, top with towards air-suction cover The direction of front end face forwardly convex.