Range hood capable of collecting gas combustion waste gas

Abstract

The invention provides a range hood capable of collecting gas combustion waste gas, which comprises a cabinet, the upper end face of the cabinet is provided with a gas stove, a side suction type range hood is arranged above the gas stove, and a lifting assembly of a waste gas collection inner side oil baffle plate is arranged in the range hood top of the side suction type range hood. An air inlet adjusting valve is mounted at the top of the waste gas collection inner side oil baffle plate, a main air duct is arranged in the waste gas collection inner side oil baffle plate, and the bottom of the main air duct is connected with an inner side oil baffle plate air inlet duct; the waste gas collection inner side oil baffle plate is connected with a waste gas collection side air duct; the waste gas collection side air duct is connected with a waste gas collection front air duct; and the waste gas collection front air duct, the waste gas collection side air duct and the waste gas collection inner side oil baffle plate form a waste gas collection gas path. According to the range hood, the waste gas collection inner side oil baffle plate is connected with the waste gas collection side air duct and the waste gas collection front air duct, harmful gas which is difficult to absorb by a range hood in the prior art is absorbed, and therefore the safety of a human body is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of range hoods, and in particular to a range hood capable of collecting waste gas from combustion of fuel gas. Background Art

[0002] A side-suction range hood is a kitchen appliance that uses side air intake and oil fume separation technology. Its design is intended to improve the efficiency of oil fume absorption. The air inlet of this range hood is closer to the source of oil fume, which can lock the generated oil fume at the first time, effectively shorten the movement distance of the oil fume rising, and thus improve the exhaust effect. Since the smoke collection chamber adopts an open design, it not only increases the cooking space, but also avoids the embarrassing situation of bumping heads when cooking. It is an indispensable part of the modern kitchen.

[0003] In the existing side-suction range hoods, the oil smoke and water vapor generated by cooking in the pot are generally absorbed through the smoke exhaust port on the top. However, the domestic gas stoves currently mainly use liquefied gas or natural gas, and the combustion reaction of liquefied gas and natural gas is not complete, and harmful gases such as carbon dioxide, sulfur dioxide, hydrocarbons and polycyclic aromatic hydrocarbons will still be produced. These harmful gases are difficult to collect with the range hood. This is because the smoke exhaust port is set high and the pot is generally placed above the fire source. The human body is very easy to inhale these harmful gases, and these harmful gases are extremely harmful to the human respiratory system and have the risk of cancer. Therefore, it is necessary to design a device to directly absorb exhaust gas. Summary of the invention

[0004] The object of the present invention is to provide a range hood capable of collecting waste gas from gas combustion, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A range hood capable of collecting waste gas from gas combustion, comprising: A cabinet, wherein the cabinet is fixedly mounted on the front end surface of the wall, an oil and gas stove is fixedly mounted on the upper end surface of the cabinet, a side-suction range hood is provided above the gas stove, the side-suction range hood is fixedly connected to the front end surface of the wall, the top of the side-suction range hood is fixedly connected to the range hood top, an exhaust gas collecting inner oil baffle is connected to the bottom through a guide rail, a lifting assembly of the exhaust gas collecting inner oil baffle is provided inside the range hood top, an air intake regulating valve is installed on the top of the exhaust gas collecting inner oil baffle, a main air duct is provided inside, first connecting ports are provided on both sides of the bottom of the main air duct, and an air inlet duct of the inner oil baffle is fixedly connected to the front end of the bottom through a first air duct partition; The first connection ports on both sides of the exhaust gas collection inner oil baffle are respectively connected to the second flexible quick connection module of the exhaust gas collection side air duct, one end of the exhaust gas collection side air duct is connected with the second flexible quick connection module, and the other end is connected with the first flexible quick connection module, and the exhaust gas collection side air duct is fixedly connected to the second connection port of the exhaust gas collection front air duct through the first flexible quick connection module; The exhaust gas collection front air duct, the exhaust gas collection side air duct and the exhaust gas collection inner oil baffle plate cooperate to form an exhaust gas collection air path.

[0006] Preferably, the lifting assembly comprises a small motor, and the small motor is fixedly mounted on the inner wall of the range hood top, and the lower end side of the small motor is rotatably connected to a rotating shaft.

[0007] Preferably, a flexible rope is fixedly connected to the rotating shaft, a hook is installed on the top of the flexible rope, the flexible rope passes through the internal space of the side-suction range hood, and is connected to the hanging hole on the top of the inner oil baffle of the exhaust gas collection through the hook.

[0008] Preferably, a second air duct partition is installed inside the exhaust gas collecting side air duct, and the internal space of the exhaust gas collecting side air duct is divided into an inner air duct and an exhaust gas collecting front air channel by the second air duct partition.

[0009] Preferably, a side air duct air inlet is opened at the front end of the inner air duct, one side of the inner air duct covers the side air duct air inlet, and the other side is connected to the second flexible quick connection module.

[0010] Preferably, one end of the exhaust gas collection front air channel is connected to the first flexible quick connection module, and the other end is connected to the second flexible quick connection module.

[0011] Preferably, the exhaust gas collecting front air channel is connected to the exhaust gas collecting front air duct via a first flexible quick connection module, and a front air duct air inlet is provided on the front end surface of the exhaust gas collecting front air duct.

[0012] Preferably, a plurality of connecting rods are installed inside the valve of the air intake regulating valve, and blades are installed on each of the connecting rods.

[0013] Preferably, a chain belt is sleeved on the outer side of the top ends of the plurality of connecting rods.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention, by arranging an inner oil baffle plate for waste gas collection and a side air duct for waste gas collection, and connecting the front air duct for waste gas collection with the gas stove, absorbs harmful gases such as carbon dioxide and sulfur dioxide which are difficult to be absorbed by side-suction range hoods in the prior art, thereby ensuring human safety.

[0015] The present invention installs flexible connection modules at both ends of the exhaust gas collecting side air duct, so that the air duct can be quickly installed and disassembled by applying pressure, thereby realizing a modular design, which is convenient for users to use and clean. At the same time, an air intake regulating valve is set at the main air duct opening to prevent the air duct from having excessive suction, thereby affecting the combustion efficiency of the gas stove and even causing the flame to go out. In addition, the air pressure of each air duct is kept balanced by setting multiple air ducts and the air intake regulating valve, thereby improving the efficiency of exhaust gas collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 A three-dimensional schematic diagram of the inner oil baffle plate for collecting exhaust gas according to the present invention; Figure 3 A three-dimensional schematic diagram of the air intake regulating valve of the present invention; Figure 4 It is a three-dimensional schematic diagram of the connection and installation of the waste gas collection inner oil baffle plate and the waste gas collection side air duct, the waste gas collection front air duct and the gas stove of the present invention; Figure 5 A three-dimensional schematic diagram of the exhaust gas collecting inner oil baffle lifting assembly of the present invention; Figure 6 A three-dimensional schematic diagram of the exhaust gas collection side air duct of the present invention; Figure 7 A top view of the exhaust gas collecting side air duct of the present invention; Figure 8 A three-dimensional schematic diagram of the air duct before exhaust gas collection of the present invention; Fig. 9 It is the first part of the exhaust gas collection gas path flow diagram of the present invention; Fig.10 This is the second part of the exhaust gas collection gas path flow diagram of the present invention.

[0017] In the figure: 1-cabinet; 2-wall; 3-gas stove; 4-side suction range hood; 401-range hood top; 402-glass plate; 403-smoke exhaust port; 5-exhaust gas collection inner oil baffle plate; 501-inner oil baffle plate air inlet; 502-hanging hole; 503-main air duct; 504-first connection port; 505-first air duct partition; 6-exhaust gas collection front air duct; 601-front air duct air inlet; 602-second connection port; 7- Exhaust gas collection side air duct; 701-side air duct air inlet; 702-first flexible quick connection module; 703-second flexible quick connection module; 704-second air duct partition; 705-inner air duct; 706-exhaust gas collection front air channel; 8-intake regulating valve; 801-connecting rod; 802-blade; 803-chain belt; 9-small motor; 901-rotating shaft; 902-flexible rope; 903-hook; 904-guide rail. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Example: See also Figures 1 to 10 , the present invention provides a technical solution: A range hood capable of collecting waste gas from gas combustion, comprising: A cabinet 1, wherein the cabinet 1 is fixedly mounted on the front end surface of a wall 2, an oil and gas stove 3 is fixedly mounted on the upper end surface of the cabinet 1, a side-suction range hood 4 is provided above the gas stove 3, the side-suction range hood 4 is fixedly connected to the front end surface of the wall 2, the top of the side-suction range hood 4 is fixedly connected to the range hood top 401, an exhaust gas collecting inner oil baffle 5 is connected below via a guide rail 904, a lifting assembly of the exhaust gas collecting inner oil baffle 5 is provided inside the range hood top 401, an air intake regulating valve 8 is installed on the top of the exhaust gas collecting inner oil baffle 5, a main air duct 503 is provided inside, first connecting ports 504 are provided on both sides of the bottom of the main air duct 503, and the front end of the bottom is fixedly connected to the inner oil baffle air inlet duct 501 via a first air duct partition 505; The first connection ports 504 on both sides of the exhaust gas collecting inner oil baffle plate 5 are respectively connected to the second flexible quick connection modules 703 of the exhaust gas collecting side air duct 7, one end of the exhaust gas collecting side air duct 7 is connected with the second flexible quick connection module 703, and the other end is connected with the first flexible quick connection module 702, and the exhaust gas collecting side air duct 7 is connected and fixedly connected to the second connection port 602 of the exhaust gas collecting front air duct 6 through the first flexible quick connection module 702; The exhaust gas collecting front air duct 6, the exhaust gas collecting side air duct 7 and the exhaust gas collecting inner oil baffle plate 5 cooperate to form an exhaust gas collecting air path.

[0020] In this embodiment, the exhaust gas collection device is independently installed at the first connection port 504 on both sides of the bottom of the exhaust gas collection inner oil baffle plate 5, and can be quickly installed. The exhaust gas collection inner oil baffle plate 5 can be retracted and extended by the lifting component inside the side-suction range hood 4. A small motor 9 is installed in the range hood top 401 of the side-suction range hood 4. After the small motor 9 is started, it drives the side shaft 901 to rotate. A flexible rope 902 is connected to the shaft 901. After the shaft 901 rotates, the flexible rope 902 will be wrapped around the shaft 901 to shorten the vertical length of the flexible rope 902. Since the bottom of the flexible rope 902 is connected to the hanging hole 502 on the top of the exhaust gas collection inner oil baffle plate 5 through the hook 903, the small motor 9 lifts the exhaust gas collection inner oil baffle plate 5 upward along the guide rail 904.

[0021] Specifically, the lifting assembly includes a small motor 9, which is fixedly mounted on the inner wall of the range hood top 401, and a rotating shaft 901 is rotatably connected to the side surface of the lower end of the small motor 9.

[0022] Specifically, a flexible rope 902 is fixedly connected to the rotating shaft 901, and a hook 903 is installed at the top of the flexible rope 902. The flexible rope 902 passes through the internal space of the side-suction range hood 4 and is connected to the hanging hole 502 at the top of the exhaust gas collecting inner oil baffle 5 through the hook 903.

[0023] In this embodiment, the exhaust gas collection front air duct 6, the exhaust gas collection side air duct 7 and the exhaust gas collection inner oil baffle 5 cooperate to form an exhaust gas collection air path (such as Fig. 9 , 10 ), the exhaust gas collection path is divided into three routes.

[0024] First, the exhaust gas enters the exhaust gas collecting front air duct 6 from the front air duct inlet 601 of the exhaust gas collecting front air duct 6. Since there is only one air path in the exhaust gas collecting front air duct 6 (such as Figure 8 ), so the exhaust gas reaches the exhaust gas collection front wind channel 706 in the exhaust gas collection side wind duct 7 through the second connecting port 602 on both sides of the exhaust gas collection front wind duct 6 and the first flexible quick connecting module 702, and then the exhaust gas passes through the exhaust gas collection front wind channel 706 and then from the second flexible quick connecting module 703 to the first connecting port 504, and enters the main air duct 503.

[0025] Second, the exhaust gas collection side air duct 7 is divided into an inner air duct 705 and an exhaust gas collection front air duct 706 by a second air duct partition 704. At the same time, the second flexible quick connection module 703 is divided into two by the air duct partition, one half is connected to the inner air duct 705, and the other half is connected to the exhaust gas collection front air duct 706 (such as Figure 7), the exhaust gas enters the inner air duct 705 in the exhaust gas collecting side air duct 7 from the side air duct inlet 701 of the exhaust gas collecting side air duct 7, and then the exhaust gas passes from the second flexible quick connection module 703 to the first connection port 504 and enters the main air duct 503.

[0026] Third, the exhaust gas enters the exhaust gas collecting inner oil baffle plate 5 from the inner oil baffle plate air inlet 501 divided by the first air duct partition 505 at the front end of the exhaust gas collecting inner oil baffle plate 5, and then merges with the main air duct 503.

[0027] The three exhaust gas collection paths eventually converge into the main air duct 503 in the inner oil baffle plate 5 of the exhaust gas collection, and then enter the side-suction range hood 4 through the air intake regulating valve 8 at the top of the main air duct 503 and are discharged.

[0028] In this embodiment, modular installation is completed through the first flexible quick connection module 702 and the second flexible quick connection module 703. The flexible module can be quickly installed and disassembled, which is convenient for cleaning and replacement of the device.

[0029] Specifically, a second air duct partition plate 704 is installed inside the exhaust gas collecting side air duct 7 , and the internal space of the exhaust gas collecting side air duct 7 is divided into an inner air duct 705 and an exhaust gas collecting front air channel 706 by the second air duct partition plate 704 .

[0030] Specifically, a side air duct inlet 701 is opened at the front end of the inner air duct 705 , one side of the inner air duct 705 covers the side air duct inlet 701 , and the other side is connected to the second flexible quick connection module 703 .

[0031] Specifically, one end of the exhaust gas collecting front air channel 706 is connected to the first flexible quick connection module 702 , and the other end is connected to the second flexible quick connection module 703 .

[0032] Specifically, the exhaust gas collecting front air channel 706 is connected to the exhaust gas collecting front air duct 6 via the first flexible quick connection module 702 , and a front air duct inlet 601 is provided on the front end surface of the exhaust gas collecting front air duct 6 .

[0033] In this embodiment, an air intake regulating valve 8 is provided on the top of the inner oil baffle 5 for collecting exhaust gas. Since the present invention has multiple air ducts and is installed close to the burner, excessive wind will affect the combustion efficiency of natural gas or liquefied gas and even cause flameout. Therefore, the size of the main air duct 503 opening is adjusted by the air intake regulating valve 8, thereby adjusting the air pressure in each air duct to keep the air pressure consistent, thereby controlling the flow rate and improving the utilization efficiency of each air duct without affecting the combustion efficiency.

[0034] Specifically, a plurality of connecting rods 801 are installed inside the valve of the intake regulating valve 8 , and blades 802 are installed on each of the connecting rods 801 .

[0035] Specifically, a chain belt 803 is sleeved on the outer side of the top ends of the plurality of connecting rods 801 .

[0036] In this embodiment, the side-suction range hood 4 used is a common side-suction range hood on the market. The side-suction range hood is a kitchen appliance that uses side air intake and oil fume separation technology. Its design is intended to improve the efficiency of oil fume absorption. The air inlet of this range hood is closer to the source of the oil fume, and can lock the generated oil fume in the first time, effectively shortening the movement distance of the oil fume rising, thereby improving the smoke exhaust effect.

[0037] A glass plate 402 is installed on the top side of the side suction range hood 4, and the glass plate 402 can be opened to expose the internal smoke exhaust port 403. When the side suction range hood 4 is started, the oil smoke rising from the pot will be sucked into the side suction range hood 4 through the smoke exhaust port 403 and collected.

[0038] When the present invention is in use, firstly, the exhaust gas collection device needs to be installed on the outside of the gas stove 3, and the small motor 9 on the top of the side-suction range hood 4 is started. The exhaust gas collection inner oil baffle plate 5 is lowered along the guide rail 904 by loosening the flexible rope 902, and then the second flexible quick connection module 703 of the exhaust gas collection side air duct 7 is aligned with the first connection port 504 at the bottom of the exhaust gas collection inner oil baffle plate 5 and pressed to quickly install it. Then, the second connection port 602 of the exhaust gas collection front air duct 6 is aligned with the second flexible quick connection module 703 of the exhaust gas collection side air duct 7 and pressed to quickly complete the installation. Subsequently, when the side-suction range hood 4 is started, the air pressure and absorption efficiency of the air duct can be adjusted through the air intake regulating valve 8 on the top of the exhaust gas collection inner oil baffle plate 5.

[0039] When disassembly is required, one only needs to unplug the exhaust gas collection front air channel 706 from the first flexible quick connection module 702, and then unplug the exhaust gas collection side air duct 7, and the components can be cleaned and replaced. Subsequently, the exhaust gas collection inner oil baffle 5 can be retracted into the side-suction range hood 4 through the lifting assembly.

[0040] When the side-suction range hood 4 is started, the top glass plate 402 is opened, and the top smoke outlet 403 absorbs the oil smoke generated in the pot and enters the side-suction range hood 4 for collection. At the same time, the exhaust gas collection channel around the gas stove 3 will also absorb harmful gases such as carbon dioxide that are difficult to be absorbed by the smoke outlet 403, and enter the main air duct 503 of the inner oil baffle 5 of the exhaust gas collection, and the size of the main air duct 503 opening is adjusted by the air intake regulating valve 8, thereby adjusting the air pressure in each air duct to keep the air pressure consistent, thereby controlling the flow rate, improving the utilization efficiency of each air duct, and will not affect the combustion efficiency, thereby protecting human safety.

[0041] It should be noted that the technology of the present invention can also be applied to other types of range hoods, such as top suction type; The remaining parts of the present invention that are not described may be the same as the prior art, or are well-known technologies, or may be implemented by using the prior art, and will not be described in detail here.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A range hood capable of collecting exhaust gas from gas combustion, characterized in that: include: A cabinet (1), wherein the cabinet (1) is fixedly mounted on the front end surface of a wall (2), an oil and gas stove (3) is fixedly mounted on the upper end surface of the cabinet (1), a side-suction range hood (4) is provided above the gas stove (3), the side-suction range hood (4) is fixedly connected to the front end surface of the wall (2), the top of the side-suction range hood (4) is fixedly connected to the range hood top (401), and an exhaust gas collecting inner oil baffle plate (5) is connected to the bottom through a guide rail (904), a lifting assembly of the exhaust gas collecting inner oil baffle plate (5) is provided inside the range hood top (401), an air intake regulating valve (8) is installed on the top of the exhaust gas collecting inner oil baffle plate (5), and a main air duct (503) is provided inside, first connecting ports (504) are provided on both sides of the bottom of the main air duct (503), and the front end of the bottom is fixedly connected to the inner oil baffle plate air inlet duct (501) through a first air duct partition plate (505); The first connection ports (504) on both sides of the exhaust gas collection inner oil baffle plate (5) are respectively connected to the second flexible quick connection module (703) of the exhaust gas collection side air duct (7); one end of the exhaust gas collection side air duct (7) is connected with the second flexible quick connection module (703), and the other end is connected with the first flexible quick connection module (702); the exhaust gas collection side air duct (7) is fixedly connected to the second connection port (602) of the exhaust gas collection front air duct (6) via the first flexible quick connection module (702); The exhaust gas collection front air duct (6), the exhaust gas collection side air duct (7) and the exhaust gas collection inner oil baffle plate (5) cooperate to form an exhaust gas collection air path.

2. A range hood capable of collecting exhaust gas from gas combustion according to claim 1, characterized in that: The lifting assembly comprises a small motor, which is fixedly mounted on the inner wall of the range hood top (401), and the lower end side of the small motor is rotatably connected to a rotating shaft (901).

3. A range hood capable of collecting exhaust gas from gas combustion according to claim 2, characterized in that: A flexible rope (902) is fixedly connected to the rotating shaft (901), a hook (903) being installed at the top end of the flexible rope (902), and the flexible rope (902) passes through the internal space of the side-suction range hood (4) and is connected to a hanging hole (502) at the top end of the exhaust gas collecting inner oil baffle plate (5) via the hook (903).

4. The range hood capable of collecting exhaust gas from gas combustion according to claim 1, characterized in that: A second air duct partition (704) is installed inside the exhaust gas collection side air duct (7), and the interior space of the exhaust gas collection side air duct (7) is divided into an inner air duct (705) and an exhaust gas collection front air duct (706) by the second air duct partition (704).

5. A range hood capable of collecting exhaust gas from gas combustion according to claim 4, characterized in that: A side air duct air inlet (701) is provided at the front end of the inner air duct (705); one side of the inner air duct (705) covers the side air duct air inlet (701), and the other side is connected to the second flexible quick connection module (703).

6. A range hood capable of collecting exhaust gas from gas combustion according to claim 4, characterized in that: One end of the exhaust gas collection front air channel (706) is connected to the first flexible quick connection module (702), and the other end is connected to the second flexible quick connection module (703).

7. A range hood capable of collecting exhaust gas from gas combustion according to claim 6, characterized in that: The exhaust gas collection front air channel (706) is connected to the exhaust gas collection front air duct (6) via a first flexible quick connection module (702), and a front air duct air inlet (601) is provided on the front end surface of the exhaust gas collection front air duct (6).

8. The range hood capable of collecting exhaust gas from gas combustion according to claim 1, characterized in that: A plurality of connecting rods (801) are installed inside the valve of the air intake regulating valve (8), and blades (802) are installed on each of the connecting rods (801).

9. The range hood capable of collecting exhaust gas from gas combustion according to claim 8, characterized in that: A chain belt (803) is sleeved on the outer sides of the top ends of the plurality of connecting rods (801).

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