Commercial kitchen air draft adjusting oil smoke extraction cover

Abstract

The utility model relates to the technical field of oil fume extraction covers, in particular to an air draft adjusting oil fume extraction cover for a commercial kitchen. The problem that in the prior art, a spray head of a smoke exhaust ventilator is poor in cleaning effect is solved, and the practicability of equipment is improved. The smoke hood structurally comprises a smoke hood body, an exhaust fan is fixed to the top of the smoke hood body, a filter screen is arranged at the lower end of the exhaust fan and detachably connected with the smoke hood body, a plurality of liquid storage parts are further arranged in the smoke hood body, a plurality of liquid outlet holes are formed in the side walls of the liquid storage parts, and a water supply tank is further fixed to the smoke hood body and connected with the liquid storage parts through water pipes. Each liquid storage part is wrapped with a liquid spraying part, and each liquid storage part is connected with the corresponding liquid spraying part in a sliding mode. According to the embodiment, the design that a nozzle is fixed in the prior art is replaced, rotation of the liquid spraying piece relative to the liquid storage piece during liquid discharging is achieved through the rotating structure, spraying of the interior of the smoke hood body in multiple directions is achieved, the cleaning effect on the smoke hood body is enhanced, and high practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, specifically to a range hood for adjusting the exhaust air in a commercial kitchen. Background Art

[0002] A commercial range hood is a device used in a commercial kitchen, also known as an exhaust fan or a range hood. It discharges oil fumes, foreign matters, and heat in the kitchen outdoors through suction and filtration to ensure fresh air in the kitchen.

[0003] In order to achieve automatic cleaning inside the range hood, a heating device is often provided in the range hood. By heating the exhaust fan, the oil stains on the exhaust fan are melted, and then a cleaning liquid is sprayed through a cleaning nozzle to automatically clean the exhaust fan.

[0004] Although this can achieve the cleaning of the exhaust fan, there are still the following problems: Since the nozzle cannot rotate, the nozzle can only clean part of the inner wall of the exhaust fan, and there are still some corners that are difficult to wash. Summary of the Utility Model

[0005] The utility model provides a range hood for adjusting the exhaust air in a commercial kitchen, which solves the problem of poor cleaning effect of the nozzle of the existing range hood and improves the practicability of the device.

[0006] The technical solution of the utility model is as follows:

[0007] A range hood for adjusting the exhaust air in a commercial kitchen includes a hood body.

[0008] A suction fan is fixed on the top of the hood body. A filter screen is arranged at the lower end of the suction fan. The filter screen is detachably connected to the hood body. A plurality of liquid storage members are further arranged in the hood body. A plurality of liquid outlet holes are arranged on the side wall of each liquid storage member. A water supply tank is also fixed on the hood body. The water supply tank is connected to each liquid storage member through a water pipe. Each liquid storage member is wrapped with a liquid spraying member. Each liquid storage member is slidably connected to the liquid spraying member. The liquid spraying member is provided with a rotating structure for automatically rotating the liquid spraying member relative to the liquid storage member when the liquid spraying member sprays liquid. A speed control controller is connected to the suction fan.

[0009] Further, the rotating structure includes a plurality of liquid spraying holes arranged on the outer wall of the liquid spraying member. The horizontal height of each liquid spraying hole near the liquid storage member end is lower than the horizontal height of each liquid spraying hole far from the liquid storage member end. The angle formed by the projection plane of the central axis of each liquid spraying hole in the vertical direction and the straight line pointing from the liquid spraying hole to the center of the liquid spraying member is 120°.

[0010] Furthermore, the liquid storage component and the liquid spray component are both cylindrical structures, a limiting ring is fixed on the outer wall of the liquid storage component, the limiting ring is slidably connected to the liquid spray component, a buffer layer is fixed at the lower end of the limiting ring, the buffer layer is made of rubber material, the limiting ring is arranged at the lower end of the liquid spray hole, and the buffer layer abuts against the liquid spray component.

[0011] Furthermore, an oil-proof part is fixed on the outer wall of the liquid storage part. The oil-proof part is a cylindrical structure. The oil-proof part is arranged at the lower end of the limiting ring. An oil-proof groove is arranged in the oil-proof part. The liquid spraying part is slidably connected to the oil-proof groove.

[0012] Furthermore, a first magnet is fixed at the bottom of the oil-proof groove, and a second magnet is provided at the bottom of the liquid spraying member, and the magnetic properties of the first magnet and the second magnet are opposite.

[0013] Furthermore, a heating plate is provided in the smoke hood body, and a heating pipe is provided in the water supply box.

[0014] Furthermore, a cleaning box is provided at the bottom of the smoke hood body, and a first sliding groove and a second sliding groove are provided at the box opening of the cleaning box. The bottom of the smoke hood body is slidingly connected to the first sliding groove and the second sliding groove at the same time. The cross-sections of the first sliding groove and the second sliding groove are both "冂"-shaped structures, and threaded holes are provided at the ends of the first sliding groove and the second sliding groove, and a limiting screw is threadedly connected to the threaded hole.

[0015] The working principle and beneficial effects of the utility model are:

[0016] The working process of this embodiment is as follows: when the fume inside the hood needs to be cleaned, first slide the cleaning box into the lower end of the hood body through the first sliding groove and the second sliding groove, and lock the cleaning box by rotating the limit bolt, then start the heating plate in the hood body to accelerate the melting of the fume inside the hood body, then preheat the cleaning liquid in the cleaning box, and introduce the cleaning liquid into the liquid storage part through the water pipe. As the amount of cleaning liquid flowing into the liquid storage part and the liquid spray part through the liquid outlet on the liquid storage part increases, the liquid spray part rises due to the water pressure, and the limit ring abuts against the liquid spray part, and the cleaning liquid sprays out from the liquid spray hole. Under the action of the tangential water flow of the cleaning liquid, the liquid spray part rotates relative to the liquid storage part to increase the cleaning area of the hood body. After the cleaning is completed, take out the cleaning box.

[0017] In this embodiment, a plurality of liquid storage parts are arranged in the smoke hood body, and liquid spray parts are slidably connected outside the liquid storage parts, and the liquid spray parts can automatically rotate relative to the liquid storage parts when spraying liquid through the rotating structure. This embodiment replaces the design of the fixed nozzle in the prior art, and the liquid spray parts can rotate relative to the liquid storage parts when discharging liquid through the rotating structure, so as to realize multi-directional spraying of the inside of the smoke hood body, enhance the cleaning effect of the smoke hood body, and have strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Figure 1 is a structural schematic diagram of the prior art;

[0020] Figure 2 is a schematic diagram of the overall structure of this embodiment;

[0021] Figure 3 is a schematic diagram of the internal structure of this embodiment;

[0022] Figure 4 is a schematic diagram of the internal connection structure of the liquid spraying member, oil discharging member and liquid storage member in this embodiment;

[0023] Figure 5 is a schematic diagram of the connection structure of the limit screw in this embodiment.

[0024] In the figure:

[0025] 1. Smoke hood body; 11. Heating sheet; 2. Water supply tank; 21. Water pipe; 3. Cleaning tank; 31. First sliding groove; 32. Second sliding groove; 33. Threaded hole; 331. Limit screw; 4. Exhaust fan; 41. Filter net; 5. Liquid spraying member; 51. Liquid spraying hole; 52. Second magnet; 6. Oil prevention member; 61. Oil prevention groove; 611. First magnet; 7. Liquid storage member; 71. Liquid outlet hole; 8. Limit ring; 81. Buffer layer. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.

[0027] Such as Figures 2 to 5As shown in the figure, in this embodiment, a commercial kitchen exhaust air regulator for an oil fume hood is proposed. Its structure includes a hood body 1. The exhaust fan 4 in this embodiment is fixedly arranged on the top of the hood body 1. A filter screen 41 is arranged at the lower end of the exhaust fan 4 to prevent other impurities in the air from entering the exhaust fan 4 and causing blockage of the exhaust fan 4. The filter screen 41 is detachably connected to the hood body 1 to facilitate the disassembly, cleaning and replacement of the filter screen 41. A number of liquid storage parts 7 are arranged in the hood body 1, and a number of liquid outlet holes 71 are arranged on the side wall of the liquid storage parts 7. A water supply tank 2 is fixedly arranged on the hood body 1, and the water supply tank 2 is connected to each liquid storage part 7 through a water pipe 21. Each liquid storage part 7 is wrapped with a liquid spraying part 5, and each liquid storage part 7 is slidably connected to the liquid spraying part 5. A rotating structure is arranged on the liquid spraying part 5 to enable the liquid spraying part 5 to rotate automatically relative to the liquid storage part 7 when the liquid spraying part 5 sprays liquid. In this embodiment, a speed control controller is connected to the exhaust fan 4, and the size of the exhaust air speed of the exhaust fan can be controlled through the speed control controller. Among them, the speed control controller is a prior art and will not be elaborated in this embodiment.

[0028] The rotating structure in this embodiment includes a number of liquid spraying holes 51 arranged on the outer wall of the liquid spraying part 5. The horizontal height of each liquid spraying hole 51 near the liquid storage part 7 is lower than the horizontal height of each liquid spraying hole 51 far from the liquid storage part 7, so as to achieve the purpose of upward spraying and facilitate the washing of the upper hood body 1. The angle formed by the straight line pointing to the center of the liquid spraying part 5 in the projection plane of the central axis of each liquid spraying hole 51 in the vertical direction is 120°, so as to generate a tangential rotating force along the outside of the liquid spraying part 5 when the liquid spraying hole 51 sprays liquid, and push the liquid spraying part 5 to rotate automatically. Among them, the rotating force generated by the angle of 120° just meets the rotating speed of the spraying, which will not be too fast to cause damage to the liquid spraying part 5, nor too slow to cause serious waste of the spraying liquid at all positions. Such a design can realize the automatic rotating spraying of the spraying liquid, so that the spraying space of the spraying liquid is larger and the cleaning effect is better.

[0029] Both the liquid storage part 7 and the liquid spraying part 5 in this embodiment are of cylindrical structures. A limiting ring 8 is fixedly arranged on the outer wall of the liquid storage part 7 to prevent the liquid spraying part 5 from detaching from the liquid storage part 7. The limiting ring 8 is slidably connected to the liquid spraying part 5, and a buffer layer 81 is fixedly arranged at the lower end of the limiting ring 8. The buffer layer 81 is made of rubber material. Such a design can not only reduce the impact of the liquid spraying part 5 moving upward on the buffer ring, but also reduce the outflow of the spraying liquid due to the ductility of the rubber itself. The limiting ring 8 is arranged at the lower end of the liquid spraying hole 51, and the buffer layer 81 abuts against the liquid spraying part 5.

[0030] The oil-proof part 6 in this embodiment is fixedly arranged on the outer wall of the liquid storage part 7. The oil-proof part 6 is of a cylindrical structure. The oil-proof part 6 is arranged at the lower end of the limiting ring 8, and an oil-proof groove 61 is arranged in the oil-proof part 6. The liquid spraying part 5 is slidably connected to the oil-proof groove 61. Such a design can ensure that during normal use, the liquid spraying hole 51 can be hidden in the oil-proof groove 61 to avoid being damaged by oil fume and causing blockage of the liquid spraying hole 51.

[0031] The cleaning box 3 in this embodiment is arranged at the bottom of the smoke hood body 1, and the first sliding groove 31 and the second sliding groove 32 are arranged at the box opening of the cleaning box 3. The bottom of the smoke hood body 1 is slidably connected with the first sliding groove 31 and the second sliding groove 32 at the same time. The cross-sections of the first sliding groove 31 and the second sliding groove 32 are both "冂"-shaped structures, which are used to ensure the smooth installation and removal of the cleaning liquid and ensure that there will be no deviation during installation. The threaded hole 33 is arranged at the end of the first sliding groove 31 and the second sliding groove 32, and the limiting screw 331 is threadedly arranged on the threaded hole 33. The design of the limiting screw 331 makes the cleaning box 3 more firmly installed, and the cleaning box 3 is not easy to separate from the smoke hood body 1 during the cleaning process; when the limiting screw 331 is separated from the smoke hood body 1, the cleaning box 3 can be disassembled and cleaned.

[0032] The heating plate 11 in this embodiment is arranged in the hood body 1, and the heating pipe is arranged in the water supply box 2. In this embodiment, the heating plate 11 arranged on the hood body 1 can effectively melt the oil smoke accumulated on the exhaust fan 4 by high temperature, and then the oil smoke is thrown away from the exhaust fan 4 by the rotation of the exhaust fan 4, thereby reducing the number of times the spray liquid is used and reducing the cleaning cost. The design of the heating pipe in the water supply pipe 21 is to heat the cleaning liquid so that the oil stains are better and faster dissolved in the cleaning liquid.

[0033] In this embodiment, a first magnet 611 is fixed at the bottom of the oil-proof groove 61, and a second magnet 52 is provided at the bottom of the liquid spraying member 5, and the first magnet 611 and the second magnet 52 have opposite magnetic properties. Such a design ensures that the liquid storage member 7 can rely on its own gravity and the magnetic attraction between the first magnet 611 and the second magnet 52 to effectively hide the liquid spraying hole 51 in the oil-proof groove 61 during the normal use of the range hood, and when the water supply tank 2 supplies water to the liquid storage member 7, water pressure can be generated to separate the liquid spraying hole 51 on the liquid spraying member 5 from the oil-proof groove 61 for liquid spraying.

[0034] Working process of this embodiment: when the fume inside the hood needs to be cleaned, first slide the cleaning box 3 into the lower end of the hood body 1 through the first sliding groove 31 and the second sliding groove 32, and lock the cleaning box 3 by rotating the limit bolt, then start the heating plate 11 in the hood body 1 to accelerate the melting of the fume inside the hood body 1, and then preheat the cleaning liquid in the cleaning box 3, and introduce the cleaning liquid into the liquid storage part 7 through the water pipe 21. As the amount of cleaning liquid flowing into the liquid storage part 7 and the liquid spraying part 5 through the liquid outlet 71 on the liquid storage part 7 increases, the liquid spraying part 5 rises due to the water pressure, and the limit ring 8 abuts against the liquid spraying part 5, and the cleaning liquid is sprayed from the liquid spraying hole 51. Under the action of the tangential water flow of the cleaning liquid, the liquid spraying part 5 rotates relative to the liquid storage part 7 to increase the cleaning area of the hood body 1. After the cleaning is completed, take out the cleaning box 3.

[0035] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A commercial kitchen exhaust control range hood, comprising a range hood body (1), characterized in that: An exhaust fan (4) is fixed on the top of the hood body (1), a filter (41) is provided at the lower end of the exhaust fan (4), and the filter (41) is detachably connected to the hood body (1). A plurality of liquid storage parts (7) are also provided in the hood body (1), and a plurality of liquid outlet holes (71) are provided on the side wall of the liquid storage parts (7). A water supply box (2) is also fixed on the hood body (1), and the water supply box (2) is connected to each liquid storage part (7) through a water pipe (21). Each liquid storage part (7) is wrapped with a liquid spray part (5), and each liquid storage part (7) is slidably connected to the liquid spray part (5). A rotating structure is provided on the liquid spray part (5) so that the liquid spray part (5) can automatically rotate relative to the liquid storage part (7) when the liquid spray part (5) sprays liquid. A speed controller is connected to the exhaust fan (4).

2. The commercial kitchen exhaust air regulating smoke exhaust hood according to claim 1, characterized in that, The rotating structure comprises a plurality of liquid spray holes (51) arranged on the outer wall of the liquid spray component (5), the horizontal height of each liquid spray hole (51) close to the liquid storage component (7) is lower than the horizontal height of each liquid spray hole (51) away from the liquid storage component (7), and the angle formed by the straight line from the liquid spray hole (51) to the center of the liquid spray component (5) in the vertical direction of the central axis of each liquid spray hole (51) is 120°.

3. The commercial kitchen exhaust air regulating smoke exhaust hood according to claim 2, wherein The liquid storage component (7) and the liquid spray component (5) are both cylindrical structures. A limiting ring (8) is fixed on the outer wall of the liquid storage component (7). The limiting ring (8) is slidably connected to the liquid spray component (5). A buffer layer (81) is fixed at the lower end of the limiting ring (8). The buffer layer (81) is made of rubber material. The limiting ring (8) is arranged at the lower end of the liquid spray hole (51), and the buffer layer (81) is in contact with the liquid spray component (5).

4. The commercial kitchen exhaust air regulating smoke exhaust hood according to claim 3, characterized in that, An oil-proof component (6) is also fixed on the outer wall of the liquid storage component (7). The oil-proof component (6) is a cylindrical structure. The oil-proof component (6) is arranged at the lower end of the limiting ring (8). An oil-proof groove (61) is arranged in the oil-proof component (6). The liquid spray component (5) is slidably connected to the oil-proof groove (61).

5. The commercial kitchen exhaust air regulating fume hood according to claim 4, characterized in that, A first magnet (611) is fixed at the bottom of the oil-proof groove (61), and a second magnet (52) is provided at the bottom of the liquid spraying member (5). The magnetic properties of the first magnet (611) and the second magnet (52) are opposite.

6. The exhaust hood for commercial kitchen ventilation regulation according to claim 1, wherein A heating plate (11) is also provided in the smoke hood body (1), and a heating pipe is provided in the water supply box (2).

7. The exhaust hood for commercial kitchen ventilation according to claim 1, characterized in that, A cleaning box (3) is provided at the bottom of the smoke hood body (1), and a first sliding groove (31) and a second sliding groove (32) are provided at the box opening of the cleaning box (3). The bottom of the smoke hood body (1) is slidingly connected to the first sliding groove (31) and the second sliding groove (32). The cross-sections of the first sliding groove (31) and the second sliding groove (32) are both "冂"-shaped structures. The ends of the first sliding groove (31) and the second sliding groove (32) are both provided with threaded holes (33), and the threaded holes (33) are threadedly connected to limit screws (331).

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