Exhaust hood

Abstract

The utility model belongs to the technical field of kitchen oil fume emission, and discloses an exhaust hood. Comprising an air exhaust cavity shell, a smoke exhaust assembly arranged at the position, close to a wall, of the air exhaust cavity shell and used for extracting smoke, a fresh air assembly arranged on one side of the smoke exhaust assembly and used for providing clean air, and an illumination assembly arranged between the smoke exhaust assembly and the fresh air assembly and used for providing illumination. The smoke exhaust assembly comprises a first smoke exhaust chamber, a second smoke exhaust chamber arranged on one side of the first smoke exhaust chamber and an air exhaust cavity communicated with the second smoke exhaust chamber, two smoke inlets are formed in the first smoke exhaust chamber, a plurality of oil screen plates are movably installed on each smoke inlet, and a purification device used for purifying smoke is arranged in the air exhaust cavity. The range hood is provided with the upper smoke exhaust port and the lower smoke exhaust port, the oil smoke exhaust efficiency is high, the oil screen plate can be detached and is convenient to maintain, the built-in purification device is arranged in an independent space, and light of an ultraviolet lamp is prevented from escaping.

Description

TECHNICAL FIELD

[0001] The utility model belongs to kitchen oil fume discharging technical field, concretely relates to a smoke exhaust hood. BACKGROUND

[0002] The kitchen will produce a large amount of oil fume, waste gas, steam, hot gas when cooking and processing food, needs to be discharged in time, so the smoke exhaust hood becomes the indispensable equipment of the kitchen.

[0003] The existing smoke exhaust hood has the following problems when being used:

[0004] 1, the existing smoke exhaust hood is a smoke exhaust area, and the oil fume exhaust efficiency is poor.

[0005] 2, the existing smoke exhaust hood must be installed at a height of more than 1.9 meters to meet the lower operator space, the smoke exhaust area is far away from the cooking bench, the space area of the oil fume and other pollution generated by the stove is large, the exhaust volume is increased, and the equipment operation energy consumption is large.

[0006] 3, the oil screen of the smoke exhaust area of the existing smoke exhaust hood cannot be opened, and the cleaning and maintenance are inconvenient.

[0007] 4, the UV lamp and the oil screen of the existing smoke exhaust hood are designed in a air outlet cavity, the ultraviolet light is easy to escape during equipment operation, and the operator below the smoke exhaust hood has the risk of being burned by the escaped ultraviolet light. INVENTION CONTENTS

[0008] The utility model provides a smoke exhaust hood to solve the partial or all technical problems in the prior art.

[0009] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a smoke exhaust hood, comprising:

[0010] An exhaust cavity shell;

[0011] A smoke exhaust assembly arranged at the position close to the wall of the exhaust cavity shell for extracting flue gas, the smoke exhaust assembly comprising a smoke exhaust chamber one, a smoke exhaust chamber two arranged on one side of the smoke exhaust chamber one and an exhaust cavity communicated with the smoke exhaust chamber two;

[0012] A fresh air assembly arranged on one side of the smoke exhaust assembly for providing clean air;

[0013] A lighting assembly arranged between the smoke exhaust assembly and the fresh air assembly for providing lighting;

[0014] Wherein, two smoke inlets are arranged on the smoke exhaust chamber one, and a plurality of oil screen plates are movably installed on each smoke inlet;

[0015] The smoke exhaust channel is further provided with a purification device for purifying flue gas.

[0016] Preferably, the fresh air assembly comprises:

[0017] A fresh air chamber is arranged on the side of the exhaust cavity shell away from the wall;

[0018] A diffusion air outlet plate is arranged on the outer side of the fresh air chamber, and a plurality of air vents are arranged on the diffusion air outlet plate;

[0019] A flow guide chamber is arranged at the bottom of the fresh air chamber and has a U-shaped structure;

[0020] A plurality of flow guide holes are arranged on the inner wall of the flow guide chamber, and an air inlet is arranged at the upper end of the fresh air chamber.

[0021] Preferably, the lighting assembly comprises an LED lamp.

[0022] Preferably, a metal filter screen is arranged between the smoke exhaust chamber one and the smoke exhaust chamber two.

[0023] Preferably, the purification device comprises:

[0024] A purification tank is arranged in communication with the smoke exhaust chamber two on one side;

[0025] An extreme ultraviolet lamp assembly is movably installed in the purification tank;

[0026] The purification tank is further provided with an opening for movably installing the extreme ultraviolet lamp assembly on one side, and the extreme ultraviolet lamp assembly comprises an extreme ultraviolet lamp, a fixing seat for installing the extreme ultraviolet lamp, and a cover for sealing the opening, wherein the cover is connected with the purification tank by screws.

[0027] Preferably, the extreme ultraviolet lamp is an ultraviolet lamp with a wavelength of less than 185 nm.

[0028] Preferably, an air exhaust passage is arranged at the upper end of the purification tank in communication with an external smoke exhaust pipe, and an air volume adjusting valve is arranged in the air exhaust passage.

[0029] Preferably, all the oil screen plates and the smoke inlets are detachably connected by buckles.

[0030] Preferably, the lowest installation height of the exhaust cavity shell is 0.7 meters away from the cooking bench.

[0031] Compared with the prior art, the utility model has the beneficial effects that:

[0032] (1) The utility model is provided with two smoke inlets arranged on the smoke exhaust chamber one, and the two smoke inlets are arranged in a longitudinal direction to simultaneously exhaust smoke from two directions of low and high positions, thereby increasing the efficiency of exhaust oil smoke.

[0033] (2), the utility model discloses a plurality of oil screen board is installed to each smoke inlet, and the oil screen board and smoke inlet are all detachable connection through buckle, and the detachable design is convenient to dismount and clean, and it is convenient to maintain later.

[0034] (3), the utility model discloses the purification device for purifying flue gas is arranged in the smoke exhaust channel, and the purification device is arranged independently, avoids ultraviolet light line to escape, and simultaneously, the mode of movable connection is convenient for subsequent use and overhauls maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 It is the internal structure schematic diagram of Figure 1 ;

[0036] Figure 2 It is the internal structure schematic diagram of Figure 1 ;

[0037] Figure 3 It is the structure schematic diagram of fresh air component of the utility model;

[0038] Figure 4 It is the explosion drawing of purification device of the utility model;

[0039] Figure 5 It is the structure schematic diagram of purification device of the utility model;

[0040] Figure 6 It is the structure schematic diagram of the utility model Figure 2 ;

[0041] Figure 7 It is the structure schematic diagram of A in Figure 6 ;

[0042] BRIEF DESCRIPTION OF DRAWINGS

[0043] 1-exhaust cavity shell, 2-smoke exhaust chamber one, 3-smoke exhaust chamber two, 4-smoke exhaust channel, 5-oil screen board, 501-buckle, 6-fresh air chamber, 601-inlet, 7-dispersion air outlet plate, 8-guiding chamber, 801-guiding hole, 9-LED lamp, 10-metal filter screen, 11-purification box, 12-opening, 13-closure, 14-exhaust passage, 15-air volume regulating valve, 16-very ultraviolet ray lamp, 17-fixing seat. DETAILED DESCRIPTION

[0044] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.

[0045] Embodiment 1:

[0046] As Figures 1 to 7 shown, the smoke exhaust hood provided by the embodiment includes a smoke exhaust cavity shell 1, a smoke exhaust assembly arranged at a position close to a wall of the smoke exhaust cavity shell 1 for extracting smoke, a fresh air assembly arranged at one side of the smoke exhaust assembly for providing clean air, and a lighting assembly arranged between the smoke exhaust assembly and the fresh air assembly for providing lighting, the lowest installation height of the smoke exhaust cavity shell 1 is 0.7 meters away from the cooking bench, which is close to the cooking bench and has good smoke exhaust effect.

[0047] The lighting assembly includes an LED lamp 9, which is a general lighting lamp and is used for providing lighting. The specific power parameter can be selected and installed according to the use requirement.

[0048] The smoke exhaust assembly includes a smoke exhaust chamber one 2, a smoke exhaust chamber two 3 arranged at one side of the smoke exhaust chamber one 2, and a smoke exhaust channel 4 in communication with the smoke exhaust chamber two 3.

[0049] A metal filter screen 10 is arranged between the smoke exhaust chamber one 2 and the smoke exhaust chamber two 3 to intercept oil fume particles with a diameter of more than 1 um from the smoke exhaust chamber one into the smoke exhaust chamber two.

[0050] Two smoke inlets are arranged on the smoke exhaust chamber one 2 and are arranged in a longitudinal direction. The two smoke inlets are used for simultaneously exhausting smoke from two directions of low and high positions to increase the efficiency of oil fume exhaust. A plurality of oil screen plates 5 are movably installed on each smoke inlet. The oil screen plates 5 are used for primary filtering of oil fume. All the oil screen plates 5 are detachably connected to the smoke inlets through buckles 501. The detachable design of the oil screen plates 5 facilitates disassembly and cleaning and facilitates later maintenance. The buckle 501 is a mature technology and is used for detachably installing the oil screen plates 5 on the smoke inlets. The specific structure is not described in detail herein.

[0051] Embodiment 2:

[0052] On the basis of the embodiment 1, a fresh air assembly for providing clean air is further arranged at one side of the smoke exhaust assembly to balance the negative pressure generated by the kitchen oil fume exhaust. The fresh air assembly is connected to a ventilation pipeline for supplying air from the outside to the inside.

[0053] Specifically, the fresh air assembly includes a fresh air chamber 6 located on the side of the exhaust chamber housing 1 away from the wall, a diffused air outlet plate 7 located on the fresh air chamber 6, a U-shaped flow guide chamber 8 located at the bottom of the fresh air chamber 6, and an air inlet 601 located on the fresh air chamber 6. The air inlet 601 is connected to a ventilation duct that supplies air from the outside to the inside. The diffused air outlet plate 7 has several ventilation holes, and the inner wall of the flow guide chamber 8 has several flow guide holes 801. Air enters the fresh air chamber 6 through the air inlet 601 and flows out through the flow guide holes 801. The fresh air forms a fixed flow pattern, which restricts the oil fumes generated when the stove is working and prevents them from spreading to the outside of the exhaust chamber housing 1. The fresh air in the fresh air chamber 6 is also evenly distributed into the kitchen through the diffused air outlet plate 7.

[0054] Example 3:

[0055] Based on Example 2, in order to prevent ultraviolet light from escaping and harming the human body while purifying the fumes, a purification device for purifying the fumes is arranged in the exhaust duct 4.

[0056] Specifically, the purification device includes a purification box 11 and an extreme ultraviolet lamp assembly that is movably installed inside the purification box 11. The air inlet of the purification box 11 is connected to the smoke exhaust chamber 2 3. The air outlet of the purification box 11 is provided with an exhaust duct 14 that is connected to the external smoke exhaust pipe. An air volume regulating valve 15 is provided in the exhaust duct 14 for automatically controlling and regulating the air volume balance of different air outlets inside the exhaust duct 14.

[0057] The extreme ultraviolet (EUV) lamp assembly is arranged inside the purification chamber, with its independent space to prevent UV light from escaping. One side of the purification chamber 11 has an opening 12 for the movable installation of the EUV lamp assembly. The EUV lamp assembly includes an EUV lamp 16, a mounting base 17 for the EUV lamp 16, and a cover 13 for sealing the opening 12. The cover 13 is connected to the purification chamber 11 with screws, facilitating the inspection and maintenance of the EUV lamp 16. The EUV lamp 16 uses UV light with a wavelength of 185nm or below to improve the purification effect. The EUV lamp 16 is a purchased component and is existing technology, so it will not be described in detail here.

[0058] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A smoke exhaust hood, characterized in that, include: Exhaust chamber housing (1); The smoke exhaust assembly is arranged in the exhaust chamber housing (1) near the wall to extract smoke. The smoke exhaust assembly includes a smoke exhaust chamber one (2), a smoke exhaust chamber two (3) arranged on one side of the smoke exhaust chamber one (2), and a smoke exhaust passage (4) communicating with the smoke exhaust chamber two (3). A fresh air unit, located on one side of the smoke exhaust unit, is used to provide clean air; Lighting components are arranged between the smoke exhaust components and the fresh air components to provide lighting; Among them, the smoke exhaust chamber 1 (2) has two smoke inlets, and each smoke inlet is movably installed with several oil mesh plates (5). The exhaust duct (4) is also equipped with a purification device for purifying the flue gas.

2. The smoke hood according to claim 1, characterized in that: The fresh air component includes: Fresh air chamber (6), said fresh air chamber (6) is arranged on the side of the exhaust chamber shell (1) away from the wall; A diffused air outlet plate (7) is arranged on the outside of the fresh air chamber (6), and several ventilation holes are arranged on the diffused air outlet plate (7); The air diversion chamber (8) has a U-shaped structure and is located at the bottom of the fresh air chamber (6); The inner wall of the flow guiding chamber (8) is provided with several flow guiding holes (801), and the upper end of the fresh air chamber (6) is provided with an air inlet (601).

3. A smoke hood according to claim 1, characterized in that: The lighting components include LED lights (9).

4. A smoke hood according to claim 1, characterized in that, A metal filter screen (10) is arranged between the smoke exhaust chamber one (2) and the smoke exhaust chamber two (3).

5. A smoke hood according to claim 1, characterized in that, The purification device includes: Purification box (11), one side of which is connected to smoke exhaust chamber 2 (3); Extreme ultraviolet lamp assembly is movably installed inside the purification box (11); The purification box (11) also has an opening (12) on one side for the movable installation of the extreme ultraviolet lamp assembly. The extreme ultraviolet lamp assembly includes an extreme ultraviolet lamp (16), a mounting base (17) for the extreme ultraviolet lamp (16), and a cover (13) for sealing the opening (12). The cover (13) is connected to the purification box (11) by screws.

6. A smoke hood according to claim 5, characterized in that, The extreme ultraviolet lamp (16) is an ultraviolet lamp with a wavelength below 185nm.

7. A smoke hood according to claim 5, characterized in that, The upper end of the purification box (11) is provided with an exhaust duct (14) connected to an external exhaust pipe, and an air volume regulating valve (15) is provided in the exhaust duct (14).

8. A smoke hood according to claim 1, characterized in that, All of the oil mesh plates (5) and the smoke inlet are detachably connected by snap fasteners.

9. A smoke hood according to claim 1, characterized in that, The minimum installation height of the exhaust chamber housing (1) is 0.7 meters from the stove.

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