Ventilation pipeline external fan and range hood integrated gas stove

Abstract

The invention discloses a ventilating duct external fan and range hood integrated gas stove. The fan is arranged outside the pipeline of the range hood by adopting the air supply device, so that the defects that the fan is easy to accumulate oil dirt in the pipeline to form potential safety hazards, is difficult to clean and inconvenient to maintain and the like are fundamentally overcome, and the effective utilization space and the gas passing ability in the pipeline can be improved. The gas stove is composed of a gas stove body, a fan motor, an air supply device, a fire extinguishing spraying device and matched parts. Metallic and non-metallic materials are adopted for manufacturing through machining and other processes, matched electric appliances and structural components all belong to universal products, the products are designed in a modular mode, the structure is simple and easy to machine, storage, transportation, installation, maintenance and cleaning are convenient, and good availability, economical efficiency and practicability are achieved. And the product can be applied to household or commercial kitchens as an upgraded and updated product for improving safety and practicability, so that the application scene is wide and clear, and remarkable social and economic benefits can be generated.

Description

Technical field: The invention belongs to the technical field of household and commercial kitchen utensils. Background technology: Current situation and shortcomings: integrated gas stoves generally refer to kitchen stoves that integrate the structure of a range hood and a gas stove with two different functions but can be used together; the fan motors of existing integrated gas stove range hoods in household and commercial kitchens are installed in the exhaust ventilation duct. During use, the oil stains and dirt generated by oil smoke and hot steam are easy to adhere to the fan motor, blade surface, range hood and the inner wall of the exhaust duct, which need to be cleaned frequently and are not easy to clean; the fan motor is installed in the exhaust duct of the range hood, which is inconvenient to disassemble and clean frequently. Therefore, more oil and dirt are easily accumulated on the surface of the motor, forming a fire hazard, and fires caused by this occur frequently.

[0001] Since the fan motor is installed in the range hood exhaust duct and occupies the effective space inside the duct, in order to meet the effective working wind pressure, wind speed and air volume of the range hood and the ventilation duct, it is necessary to increase the fan power to ensure performance, which also increases energy consumption and usage costs.

[0002] According to online search: the fan motor has been installed in the range hood duct since it was invented by the Germans in 1941.

[0003] The present invention designs the fan motor outside the range hood exhaust duct, and when working, the airflow is guided by the integrally connected air supply device to achieve the oil fume exhaust or ventilation effect, so as to specifically solve the fire safety and electricity safety hazards caused by the arrangement of the fan motor in the range hood duct, and the shortcomings of difficult cleaning and maintenance, while improving the effective space utilization and gas permeability in the range hood ventilation duct; at the same time, a fire extinguishing sprinkler device is optionally arranged in the integrated stove structure, so that after configuration, emergency fire fighting and self-rescue can be carried out promptly and quickly when needed.

[0004] The invention has novelty, creativity and practicality in the field of integrated gas stove technology and application. Summary of the invention:

[0005] In order to solve the problems existing in the prior art and products described in the background technology, the present invention provides a ventilation duct external fan range hood integrated gas stove.

[0006] The present invention is achieved through the following technical solutions:

[0007] The present invention is composed of a gas stove structure, an oil fume collection and discharge structure, a fan motor and an air supply device, a fire extinguishing sprinkler device, a touch switch and an information display device, a lighting device, an electric control box, a pipeline and a sealing connector. When working, the fan motor generates a rated working pressure airflow, and the gas to be discharged is drained to the air intake pipeline and discharged through the exhaust pipeline through the guide structure of the air supply device connected to the pipeline and the gas drainage effect, thereby achieving the oil fume exhaust and ventilation effect. Due to the design of the air supply device, the fan motor structure can be arranged outside the ventilation duct, while ensuring the gas discharge effect, thereby specifically solving the fire safety and electricity safety hazards caused by the easy accumulation of oil scale when the fan motor is arranged in the range hood pipeline, and the shortcomings of being difficult to clean and inconvenient to maintain, and at the same time improving the effective space utilization and gas permeability of the range hood pipeline. The connecting pipe fittings and flange connection seals between the air supply device and the fan motor are designed and made of vibration-damping and noise-isolating materials such as shock-absorbing rubber, so the whole device system has a certain function and effect of reducing resonance and noise. According to the conditions and requirements of the application scenario, an axial flow fan or a vortex fan can be used as a pressure gas source.

[0008] The main structure and function of the present invention is to exhaust oil smoke when using a gas stove. The gas stove and the range hood are integrated and adopt a unit-type modular structure design. The fire extinguishing sprinkler device is an optional structure and function, and whether it is installed or not does not affect the main function and use. The main technical features of the fire extinguishing sprinkler device are: using the essential tap water supply pipeline in the kitchen as the water source, a sprinkler outlet is set on the side of the integrated stove facing the gas stove top fire outlet, and a sprinkler outlet is set on the top of the integrated stove facing the gas stove top fire outlet where the pot is placed; electric control valves are respectively set on the tap water supply pipeline of the fire extinguishing sprinkler device and the gas supply pipeline of the integrated stove, and the opening or closing of the electric control valve is controlled by a special program controller set in the electric control box. In case of electrical failure, the opening or closing can also be manually controlled; during daily use of the integrated stove, the gas electric control valve is opened and the spray electric control valve is closed. If the fire extinguishing sprinkler device needs to be used in an emergency, first turn any gas switch knob of the integrated stove to the emergency gas shut-off position, and the gas electric control valve is closed and the spray electric control valve is opened at the same time. If it is inconvenient to operate in the kitchen, you can also go to The remote control emergency button is set at a relatively safe position outside the kitchen door for operation. After the emergency button is operated, the spray outlets set on the side facade and the top of the integrated stove will spray water; since the gas electric control valve is turned off, there is no combustible gas source for continued combustion at this time. At the same time, under the premise of normal water supply of the tap water pipeline, a continuous stream of water is sprayed on the stove and pots, which can achieve a certain fire-fighting or fire-reducing effect for the use of combustible materials when cooking in a family kitchen; the present invention is applicable to not only household integrated stoves, but also, according to the same working and structural principles, targeted applicability technical transformation can be carried out for the functional structure of commercial kitchen range hoods and stoves to improve the safety and practicality of commercial kitchens; according to actual use needs, if the fire-extinguishing sprinkler device is not selected, the relevant structure will be simplified and adjusted accordingly.

[0009] The oil fume collection and discharge structure adopts a new design form of an external fan air supply device in the ventilation duct. Therefore, the structure of the entire range hood ventilation duct system is simple and unobstructed, which improves the current situation that the existing technology and product structure are prone to accumulation of oil and dirt and difficult to clean; the eight-shaped inclined surface structure design on both sides of the rear vertical plate of the stove improves the oil fume collection effect, and at the same time plays a shielding and protective role for the water pipes and signal lines and conductive line protective sleeves behind the structure; the inner wall of the pipe is coated with an oleophobic and hydrophobic coating, which can achieve the effect of non-oil and water sticking to a certain extent. The oil and water attached to the inner wall of the pipe that are not discharged with the oil fume airflow will flow along the inner wall of the pipe to the oil collecting box at the lower end of the pipe. The oil collecting box is made of hard transparent resin material, which is easy to process and install as well as observe and clean.

[0010] The present invention belongs to structural design, and the electronic control and intelligent control technical solutions are submitted separately; the gas stove structure, touch switch and information display device, lighting device, electric control box, pipeline and sealing connector structure and components adopt common structural forms; the integrated stove as a whole adopts a modular structural design, the structure is simple and easy to manufacture, store, transport, install, maintain and clean, and is suitable for popular application in home and commercial kitchens.

[0011] Compared with the prior art, the present invention has the following beneficial effects: an external fan air supply device is used to increase the effective space in the pipeline, reduce potential safety hazards and improve the safety of the integrated stove under the premise of meeting the effective working wind pressure, wind speed and air volume required for exhausting oil fumes; the structure in the pipeline is simple and unobstructed, which is convenient for cleaning and maintenance; the unit modular structure is simple and easy to operate, easy to process and manufacture, and has good availability and economy; the fire extinguishing sprinkler device can be used as one of the emergency fire fighting and self-rescue measures to provide timely rescue in case of emergencies; the use of vibration-damping and noise-isolating materials and the structural design can reduce environmental noise pollution in household and commercial kitchen application scenarios; the overall structure is simplified and specialized without any other additional functional structures; the household and commercial application scenarios are clear, extensive and economical. Description of the drawings:

[0012] Figure 1 : Front view of ventilation duct, external fan, range hood, integrated gas stove without door, system and component diagram.

[0013] 1 touch switch and information display device, 2 gas stove, 3 gas switch knob, 4 air supply device air inlet pipe, 5 air supply device exhaust pipe interface, 6 air supply device, 7 oil collecting box, 8 fan motor air supply device connecting pipe fittings, 9 vibration reduction connecting pipe and fasteners, 10 fan motor bracket, 11 axial fan motor, 12 fan motor signal line power line and protection tube, 13 spray electric control valve, 14 spray water supply pipe, 15 spray electric control valve signal line power line and protection tube, 16 electric control box, 17 gas electric control valve signal line power line and protection tube, 18 gas supply pipe, 19 gas electric control valve, 20 side facade spray outlet; each component is organically combined to form the system function and structure;

[0014] Figure 2 : Axonometric view of the integrated gas stove, diagram of the gas stove structure and components.

[0015] 21 curved deflector plate, 22 air inlet, 23 stove rear facade protection plate, 24 stove side facade protection plate, 20 side facade spray outlet, 2 gas stove, 3 gas switch knob;

[0016] When the gas stove 2 starts working by rotating the gas switch knob 3, the fan is started to generate pressurized airflow at the same time. The oil smoke and hot steam generated by the gas stove enter the ventilation duct system along the curved guide plate 21 and the air inlet 22 under the guidance of the pressurized airflow in the ventilation duct and are discharged.

[0017] Figure 3 : Left view of the integrated gas stove, left side appearance illustration.

[0018] Figure 4 : Cross-sectional view of integrated gas stove, diagram of ventilation system structure and airflow working status.

[0019] 21 curved guide plate, 22 air inlet, 23 stove rear facade protection plate, 24 stove side facade protection plate, 25 bucket-shaped ventilation duct, 2 gas stove, 4 air supply device air inlet pipe, 6 air supply device, 7 oil collecting box;

[0020] In general, the gas stove 2 and the air supply device 6 are used at the same time. As shown by the arrow in the figure, the oil smoke and hot steam generated are guided by the pressure airflow along the rear facade protection plate 23 of the stove, the side facade protection plate 24 of the stove, the curved guide plate 21, and the air inlet 22, and are discharged along the range hood ventilation duct composed of the bucket-shaped ventilation duct 25 and the air inlet pipe 4 of the air supply device. The oil and water attached to the inner wall of the pipe that are not discharged with the oil smoke airflow will flow along the inner wall of the pipe to the oil collecting box 7 at the lower end of the pipe. After the oil and water are collected, they need to be cleaned manually. The oil collecting box made of hard transparent resin material is convenient for loading and unloading, observation and cleaning. As shown in the half-section view of this cross-section, the radial structural size ratio of the system components is about half of the integrated stove cabinet.

[0021] Figure 5: Cross-section of the air supply device structure, front view of the integrated gas stove without the door, and diagram of the air supply device system components.

[0022] 4 air supply device air inlet pipe, 5 air supply device exhaust pipe interface, 6 air supply device, 7 oil collecting box, 8 fan motor air supply device connecting pipe fittings, 9 vibration reduction connecting pipe and fasteners, 10 fan motor bracket, 11 axial flow fan motor, 12 fan motor signal line power line and protection tube, 16 electric control box.

[0023] When the integrated stove is working, the pressure airflow is generated by the system control of the electric control box 16, the fan motor signal line power line and the protective tube 12, and the axial fan motor 11. The vibration-damping connecting pipe and fastener 9 made of materials with vibration-damping and noise-isolating functions such as shock-absorbing rubber, the fan motor air supply device connecting pipe 8 and the air supply device 6 are combined to form a ventilation duct system structure for generating and transporting the pressure airflow; under the action of the guide structure and gas drainage effect of the air supply device 6, the gas to be discharged is passed through Figure 4 During the collection process, the oil and water attached to the inner wall of the pipe that are not discharged with the oil fume airflow will flow along the inner wall of the pipe to the oil collecting box 7 at the lower end of the pipe, thereby achieving the ideal oil fume exhaust and ventilation effect without contacting the oil fume and accumulating oil scale.

[0024] Figure 6 : Diagram of the water, electricity, and gas access terminals of the integrated stove system, and diagram of the system structure from the right perspective.

[0025] 14 spray water supply pipe, 16 electric control box, 18 gas supply pipe;

[0026] The system signal line and power line are connected by the electric control box 16, the water for spraying is connected by the water supply pipe 14, and the gas used by the gas stove is connected by the gas supply pipe 18; the right axonometric angle shows the system structure relationship.

[0027] Figure 7 : The left axonometric angle shows the structural relationship of the integrated stove system.

[0028] Figure 8 : The upward axonometric angle on the right shows the relationship between components and system structure.

[0029] 14 sprinkler water supply pipe, 18 gas supply pipe;

[0030] The connection structure between the spray water supply pipe 14 and the spray riser, and the gas supply pipe 18 and the gas stove riser is shown in the figure.

[0031] Fig. 9 : The left side upward axonometric angle shows the relationship between components and system structure.

[0032] 14 spray water supply pipe, 18 gas supply pipe, 20 side elevation spray water outlet, 21 curved guide plate, 22 air inlet, 23 stove rear elevation protection plate, 24 stove side elevation protection plate, 26 top spray water outlet, 27 lighting device;

[0033] The diagram shows the connection structure between the spray water supply pipe 14 and the spray riser, and the gas supply pipe 18 and the gas stove riser; the hot smoke and steam are collected along the stove curved guide plate 21, the rear facade protection plate 23, and the stove side facade protection plate 24 and enter the air inlet below the curved guide plate 21, and the effect is shown from an upward angle; combined with Figure 7 The side spray outlet 20 and the top spray outlet 26 are symmetrically arranged as shown in the figure; the lighting device 27 is symmetrically arranged to play a lighting role when the integrated stove is used.

[0034] Fig.10 : The rear view and front view show the relationship between components and structure and control system.

[0035] 1 touch switch and information display device, 14 spray water supply pipe, 15 spray electric control valve signal line power line protection sleeve, 17 gas electric control valve signal line power line and protection pipe, 20 side elevation spray water outlet; 26 top spray water outlet, 28 touch switch and information display device and lighting device signal line power line and protection pipe;

[0036] The spray water supply pipe 14 is connected to the side facade spray water outlet 20 and the top spray water outlet 26, and is symmetrically arranged on the left and right; the spray electric control valve signal line power line and the protective tube 15 are connected to the electric control box 16 and the spray electric control valve 13, and the gas electric control valve signal line power line and the protective tube 17 are connected to the electric control box 16 and the gas electric control valve 19; the touch switch and the information display device and the lighting device signal line power line and the protective tube 28 are connected to the touch switch and the information display device and the lighting device.

[0037] Fig.11 : The rear right isometric angle shows the system relationship diagram of components and structure.

[0038] Fig.12 : The rear left isometric angle shows the system relationship diagram of components and structure.

[0039] 6 air supply device, 7 oil collecting box, 11 axial flow fan motor, 21 curved guide plate, 25 bucket-shaped ventilation duct, 29 connecting pipe fittings, 30 left mounting hole, 31 right mounting hole;

[0040] The structure and position diagram of the air supply device 6, the axial flow fan motor 11 and the oil collecting box 7 in the rear view; the structure and position diagram of the curved guide plate 21, the bucket-shaped ventilation duct 25 and the connecting pipe fitting 29 in the rear view; the left mounting hole 30 and the right mounting hole 31 are symmetrically arranged, and the built-in structure of the integrated stove can be installed on the left or right side, which can adapt to the application scenario in which the ventilation duct in the building facility is arranged on the left or right side of the integrated stove.

[0041] Fig.13 :6 air supply device, axonometric drawing of the appearance structure of the core component of the present invention.

[0042] Fig.14 :6 Air supply device, with the internal structure shown by a cross-sectional view and the working principle process indicated by the arrows.

[0043] Fig.15 : 6 air supply device, 11 axial flow fan motor, 32 household or commercial kitchen fume hood;

[0044] By using an axial flow fan motor 11 and an air supply device 6, and designing a fume hood in combination with specific requirements of the application scenario, a ventilation duct external fan suspended range hood can be formed, which is applied to home or commercial kitchens, as shown in the embodiment.

[0045] Fig.16 : 6 air supply device, 33 vortex fan motor, 34 household or commercial kitchen fume hood;

[0046] By using a vortex fan motor 33 and an air supply device 6, a fume hood is designed in combination with specific requirements of the application scenario to form a ventilation duct external fan suspended range hood, which is applied to home or commercial kitchens, as shown in the embodiment. Specific implementation method:

[0047] The present invention is composed of a gas stove structure, a fan motor and air supply device, an oil fume collection and discharge structure, a fire extinguishing sprinkler device, a touch switch and an information display device, a lighting device, an electric control box, pipelines and sealing connectors; it can be manufactured using metal or non-metal materials through mechanical sheet metal welding processing and molding processing and other process methods, using common general-purpose mechanical equipment, and the supporting fan motor, pipeline and pipeline sealing connectors and electrical and electronic components are all common general-purpose structural products, and therefore have good availability.

[0048] The present invention adopts a unit modular structure, which is simple in structure and easy to process. The supporting parts have good availability and economy, and are convenient for storage, transportation, installation, maintenance, and cleaning, and have good practicality. It is widely used in the field of household or commercial kitchen stoves to improve safety and ease of use, and is conducive to product upgrading. Therefore, the application scenarios are broad and clear, which can produce significant social and economic benefits.

Claims

1. A gas stove with an external fan and range hood in the ventilation duct, characterized in that: include: The gas stove 2, air supply device 6, axial flow fan motor 11 or vortex fan motor 33 are the main components, and are equipped with: air supply device air inlet pipe 4, air supply device exhaust pipe interface 5, oil collection box 7, fan motor air supply device connecting pipe 8, vibration reduction connecting pipe and fastener 9, spray water supply pipe 14, gas supply pipe 18, side facade spray outlet 20, top spray outlet 26, curved guide plate 21, air inlet 22, stove rear facade protection plate 23, stove side facade protection plate 24 ventilation system structure, gas, water supply pipeline pipe fittings, As well as touch switch and information display device 1, gas switch knob 3, spray electric control valve 13, gas electric control valve 19, fan motor signal line power line and protection tube 12, spray electric control valve signal line power line and protection tube 15, gas electric control valve signal line power line and protection tube 17, fan motor bracket 10, electric control box 16 control and power structure components, the above components are organically combined to form a system structure product with gas stove and range hood as main functions, as shown in the attached figure of the specification, the cabinet ventilation duct external fan range hood integrated gas stove.

2. According to claim 1, the ventilation duct external fan range hood integrated gas stove is characterized by: Also includes: The air supply device 6, the axial flow fan motor 11 or the vortex fan motor 33 are the main components, and are configured with: an air supply device air inlet pipe 4, an air supply device exhaust pipe interface 5, a fan motor air supply device connecting pipe 8, a vibration reduction connecting pipe and fasteners 9, a fan motor bracket 10 ventilation duct and power structure components. According to the application scenario and use requirements, an axial flow fan or a vortex fan can be used as a pressure air source; the above-mentioned components are organically combined to form a structural device in which a fan motor is arranged outside the range hood ventilation duct to absorb and exhaust oil smoke. On the premise of ensuring and improving the gas suction and exhaust effect, the traditional structural form of installing the fan motor in the range hood ventilation duct is improved, so that the fan motor does not contact with oil smoke and does not accumulate oil scale, and can achieve ideal oil smoke exhaust and ventilation effects, thereby improving the effective use of space and gas permeability in the duct as well as the safety and convenience of use.

3. The ventilation duct external fan range hood integrated gas stove according to claims 1 and 2, characterized in that: Also includes: The sprinkler electric control valve 13, the sprinkler water supply pipe 14, the sprinkler electric control valve signal line power line and protection pipe 15, the side elevation sprinkler outlet 20, the top sprinkler outlet 26 sprinkler system structural components, and the gas electric control valve signal line power line and protection pipe 17, the gas supply pipe 18, the gas electric control valve 19 gas structural components, the above components are organically combined to form a fire extinguishing sprinkler device that can be controlled in a linked manner; if it is needed in an emergency, the fire extinguishing sprinkler device is connected to the kitchen with a necessary tap water supply pipe. The road is used as a water source, the special programmable controller linkage control device is started, the gas electric control valve 19 is closed, and the gas supply pipe 18 no longer provides a combustible gas source; the spray electric control valve 13 is opened at the same time, and under the premise of normal water supply from the tap water pipeline, the side facade spray outlets 20 and the top spray outlets 26 are symmetrically arranged on the left and right to spray the stove and pots uninterruptedly, which can achieve a certain fire-fighting or fire-reducing effect for the volume of combustible materials used daily when cooking in family kitchens.

4. The ventilation duct external fan range hood integrated gas stove according to claims 1, 2, and 3, characterized in that: It also includes: a gas stove 2, a curved guide plate 21, an air inlet 22, a rear facade protection plate 23 and a side facade protection plate 24 structural components; taking the gas stove 2 countertop as a reference, a three-dimensional oil fume collection and diversion discharge structure is formed by combining the rear facade protection plate 23 and the side facade protection plates 24 with eight-shaped inclined structures on both sides, and the curved guide plate 21 extending into the air inlet 22. Compared with the existing range hood structure, the effect of collecting oil fume and hot steam is significantly improved, which plays a positive role in improving the air pollution in the kitchen operating environment and reducing the impact of oil fume and hot steam on human health.

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