Split type range hood

Abstract

The utility model provides a split type range hood. The split type range hood comprises a range hood body, a smoke exhaust pipe and a fan, the range hood body is fixed on an indoor wall body, the fan is fixed on an outdoor wall body, one end of the smoke exhaust pipe is connected with a smoke exhaust port on the range hood body, and the other end of the smoke exhaust pipe is connected with an air inlet on the fan; according to the utility model, after the fan is externally arranged, namely the range hood is designed into a split structure, the fan is positioned on the outdoor wall body, so that the oil stain positioned on the inner side of the fan can be conveniently cleaned, and the noise generated when the range hood works can be effectively reduced so as to improve the indoor environment.

Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, and in particular to a split-type range hood. Background Art

[0002] A range hood is a device for extracting oil smoke generated when cooking food. Currently, the range hoods on the market include a shell and a fan. A smoke exhaust passage is arranged inside the shell. The lower end of the smoke exhaust passage forms an oil smoke inlet, and the upper end of the smoke exhaust passage is provided with a smoke exhaust port for connecting to a smoke exhaust pipe. The fan is fixed inside the shell and the fan is connected in series in the smoke exhaust passage as a whole. In the above range hood structure, since the fan is fixed inside the shell, it is inconvenient to clean the oil stains adhered to the inner wall of the fan and the impeller of the fan. In addition, there is also the disadvantage of high noise when the range hood is working. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a split-type range hood, which, by placing the fan outside, that is, by designing the range hood into a split structure, can facilitate the cleaning of oil stains inside the fan because the fan is located on the outdoor wall, and can effectively reduce the noise of the range hood when it is working, so as to improve the indoor environment.

[0004] The utility model provides a split type range hood, comprising a range hood body, a smoke exhaust pipe and a fan; the range hood body is fixed on an indoor wall, the fan is fixed on an outdoor wall, one end of the smoke exhaust pipe is connected to the smoke exhaust port on the range hood body, and the other end of the smoke exhaust pipe is connected to the air inlet on the fan.

[0005] The utility model places the fan outside, that is, designs the range hood into a split structure. Since the fan is located on the outdoor wall, it is convenient to clean the oil stains inside the fan, and the noise of the range hood when it is working can be effectively reduced to improve the indoor environment. In addition, the utility model is mainly used in independent self-built houses, townhouses, villas and other house structures that do not have a unified smoke exhaust duct and are directly discharged to the outside. In addition, after the range hood is designed into a split structure, a fan with higher power can be used to improve the suction power of the range hood. For example, the air volume of the range hood can reach 30 cubic meters per minute, and since the fan is located on the outdoor wall, the indoor noise can be controlled below 70 decibels while ensuring a large air volume and suction.

[0006] In a possible implementation, the fan includes a casing, a volute, a motor and a wind wheel, the volute is fixed inside the casing, an air inlet and an air outlet are arranged on the casing, the air inlet end of the volute is connected to the air inlet, the air outlet end of the volute is connected to the air outlet, the wind wheel is coaxially fixed to the output shaft of the motor, the fan also includes a cover plate, an inspection port is arranged on the casing, the cover plate is connected to the outside of the casing and is used to close the inspection port, and the motor is fixed to the inner wall of the cover plate; when the cover plate closes the inspection port, the wind wheel is closed with the cover plate The plate is inserted into the volute, and when the cover plate releases the sealing state of the inspection port, the wind wheel is removed from the volute with the cover plate; after the fan adopts this structure, when it is necessary to clean the oil stains adhering to the wind wheel and the inner wall of the volute, the cover plate can be released from the sealing state of the inspection port. At this time, the wind wheel can be removed from the volute with the cover plate, so that the oil stains on the wind wheel can be easily cleaned, and the oil stains adhering to the inner wall of the volute can be easily cleaned through the inspection port.

[0007] In a possible embodiment, a protective net is provided at the air outlet, and the outer edge of the protective net is fixed to the casing; by providing the protective net at the air outlet, the human body can be prevented from contacting the rotating wind wheel, thereby preventing personal injury and eliminating safety hazards; one of the two opposite side edges in the horizontal direction of the cover plate is rotatably connected to the outer side of the casing, and the other of the two opposite side edges in the horizontal direction of the cover plate is locked with the outer side of the casing; after adopting this structure, when the other of the two opposite side edges in the horizontal direction of the cover plate is unlocked from the outer side of the casing, the cover plate can be rotated open relative to the casing, that is, the wind wheel can be removed from the volute with the cover plate, and in the above process, there is no need to remove the cover plate from the casing, thereby facilitating the maintenance of the motor and the cleaning of the wind wheel; after the other of the two opposite side edges in the horizontal direction of the cover plate is locked with the outer side of the casing, the cover plate can close the inspection port, and at this time the wind wheel can be inserted into the volute with the cover plate.

[0008] In a possible embodiment, one of the two opposite sides in the horizontal direction of the cover plate is rotatably connected to the outer side of the casing by two hinges symmetrically arranged in the upper and lower directions; by adopting this structure, one of the two opposite sides in the horizontal direction of the cover plate can be conveniently rotatably connected to the outer side of the casing by the hinge; the other of the two opposite sides in the horizontal direction of the cover plate is locked with the outer side of the casing by hand bolts; by adopting this structure, after the cover plate is closed on the casing and the inspection port is closed, the other of the two opposite sides in the horizontal direction of the cover plate can be conveniently fastened to the casing by hand bolts.

[0009] In a possible embodiment, a sealing structure is provided between the edge of the inspection port and the cover plate; by providing the sealing structure between the edge of the inspection port and the cover plate, when the fan is working, air leakage between the cover plate and the inspection port can be avoided, so that the wind wheel can reliably draw air from the air inlet; the sealing structure includes a sealing strip, and a bent edge folded outward is provided at the edge of the inspection port, the sealing strip is wrapped on the bent edge, and the sealing strip is abutted against the inner wall of the cover plate; by adopting this structure, after the cover plate is closed on the casing, the sealing strip can abut against the inner wall of the cover plate, that is, the sealing strip can reliably seal the gap between the edge of the inspection port and the cover plate.

[0010] In a possible embodiment, the range hood body includes a shell, a fume inlet with a front opening is provided at the rear of the shell, the fume inlet is located at the lower edge of the shell, a smoke exhaust channel is provided inside the shell, and a smoke exhaust port is provided at the upper end of the smoke exhaust channel; the range hood body also includes a smoke hood, which is fixed inside the shell, the lower end of the smoke hood is connected to the upper end of the fume inlet, and the upper end of the smoke hood is connected to the lower end of the smoke exhaust channel; the left and right side walls of the lower part of the smoke hood both expand outward from top to bottom and form a trumpet-shaped structure; through the provision of the smoke hood, and because the left and right side walls of the lower part of the smoke hood both expand outward from top to bottom and form a trumpet-shaped structure, the smoke hood can play a role in concentrated drainage of the smoke, thereby effectively reducing the resistance to the passage of the smoke, so as to improve the range hood's effect of absorbing the smoke; in addition, the smoke hood can also isolate electrical components in the range hood, that is, the electrical components are located on the outside of the smoke hood, so as to avoid damage to the electrical components in the range hood caused by smoke.

[0011] In a possible embodiment, a sound-absorbing structure is arranged on the inner wall of the smoke exhaust passage; after the sound-absorbing structure is arranged on the inner wall of the smoke exhaust passage, when the oil smoke flows through the smoke exhaust passage, the sound-absorbing structure can absorb the airflow noise generated by the flow of the oil smoke, thereby improving the kitchen environment to enhance the user's comfort; the sound-absorbing structure includes a first fire-proof sound-absorbing cotton and several pieces of second fire-proof sound-absorbing cotton, the first fire-proof sound-absorbing cotton is connected to the inner top of the smoke exhaust passage, and the first fire-proof sound-absorbing cotton is provided with a through hole, and the through hole is vertically corresponding to the smoke exhaust port, and several pieces of second fire-proof sound-absorbing cotton are circumferentially distributed and connected to the inner wall of the smoke exhaust passage; after adopting this structure, when the oil smoke flows through the smoke exhaust passage, the first fire-proof sound-absorbing cotton and several pieces of second fire-proof sound-absorbing cotton can absorb the airflow noise generated by the flow of the oil smoke, thereby improving the kitchen environment The smoke exhaust passage has a plurality of second fireproof and sound-absorbing cottons, and the plurality of second fireproof and sound-absorbing cottons are connected to the smoke exhaust passage through a plurality of holes.

[0012] In a possible embodiment, the range hood body further includes a baffle, a guide plate and a driving assembly; the guide plate is arranged on the inner side of the oil fume inlet, and the guide plate is inclined from top to bottom toward the front side; the baffle is arranged on the front side of the oil fume inlet, and the baffle is rotatably connected to the shell; the driving assembly is fixed inside the shell, and the baffle is transmission-connected to the driving assembly, and the driving assembly is used to drive the baffle to rotate relative to the shell so that the baffle blocks the opening on the front side of the oil fume inlet or releases the blocking of the opening on the front side of the oil fume inlet; when the driving assembly drives the baffle to rotate relative to the shell so that the baffle releases the blocking of the opening on the front side of the oil fume inlet, an angle α is formed between the baffle and the guide plate, and a negative pressure smoking area is formed between the baffle and the guide plate; the angle α is 30- 35 degrees; when people cook food, the generation and diffusion of oil smoke are mainly divided into three stages: the first stage is the high-speed concentrated rising period, from the beginning of generation in the pot to the interval within 200mm above the pot surface; the second stage is the concentrated slow rising period, from 200mm to 400mm above the pot surface; the third stage is the diffusion period, more than 400mm away from the pot surface; for this reason, by controlling the angle α formed between the baffle and the guide plate, a strong negative pressure smoking area can be formed between the baffle and the guide plate, which can reliably and effectively absorb the oil smoke in the concentrated slow rising period, thereby preventing the oil smoke from entering the diffusion period and spreading, and further preventing the oil smoke from being inhaled by the human body and polluting the indoor environment.

[0013] In a possible embodiment, a rotating arm is fixed to the rear side of the left and right ends of the baffle, and the end of the rotating arm away from the baffle movably penetrates the shell and then extends into the shell and is rotatably connected to the shell; by adopting this structure, the baffle can be reliably rotatably connected to the shell through the rotating arm; the driving assembly includes an electric actuator and a connecting rod, the electric actuator is fixed on the inner side of the shell, one end of the connecting rod is rotatably connected to the swing rod of the electric actuator, and the other end of the connecting rod is rotatably connected to the middle part of one of the rotating arms; by adopting this driving assembly, when the swing rod of the electric actuator rotates to one side, the rotating arm can be driven to rotate under the action of the connecting rod so that the baffle rotates toward the side of the oil fume inlet and blocks the opening of the oil fume inlet, and when the swing rod of the electric actuator rotates to the other side, the rotating arm can be driven to rotate under the action of the connecting rod so that the baffle rotates toward the side away from the oil fume inlet and releases the blocking of the opening of the oil fume inlet; in addition, the driving pick-up has the advantages of simple structure and convenient control of the rotation of the baffle.

[0014] In a possible embodiment, the guide plate is detachably connected to the shell; the upper end of the guide plate abuts against the rear inner wall of the oil fume inlet, and the lower end of the guide plate is provided with a first folded edge extending from front to rear, and the first folded edge abuts against the inner bottom of the oil fume inlet, and the guide plate is fixed to the shell by at least one screw, and the screw portion of each screw passes through the bottom of the shell and is threadedly connected to the first folded edge; by adopting this structure, the guide plate can be disassembled, thereby facilitating the cleaning of oil stains adhering to the guide plate; when it is necessary to clean the oil stains adhering to the guide plate, first remove the screws used to fix the guide plate, and then remove the screws used to fix the guide plate. The guide plate can be removed from the shell body, and then the oil stains adhering to the guide plate can be cleaned. After the guide plate is cleaned, the guide plate can be reinstalled into the oil fume inlet and fixed with screws; the upper end of the guide plate is provided with a second folded edge extending from top to bottom, and the second folded edge abuts against the rear inner wall of the oil fume inlet; after adopting this structure, under the action of the second folded edge, the second folded edge can abut against the rear inner wall of the oil fume inlet, and because the second folded edge extends from top to bottom, the upper end of the guide plate can reliably abut against the rear inner wall of the oil fume inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 This is the first three-dimensional structural diagram of the fan;

[0017] Figure 3 is a second three-dimensional structural schematic diagram of the fan;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the fan when the cover is rotated and opened relative to the casing;

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure after the motor and the cover are assembled;

[0020] Figure 6 It is the first three-dimensional structural schematic diagram of the range hood body;

[0021] Figure 7 It is a schematic diagram of the cross-sectional structure of the range hood body;

[0022] Figure 8 This is a schematic diagram of the three-dimensional structure of the range hood body with part of the shell removed;

[0023] Fig. 9 is a second three-dimensional structural schematic diagram of the range hood body;

[0024] Fig.10 It is a first three-dimensional cross-sectional structural schematic diagram of the range hood body;

[0025] Fig.11 for Fig.10 The schematic diagram of the structure after the enlargement of A in the middle;

[0026] Fig.12 is a second three-dimensional cross-sectional structural schematic diagram of the range hood body;

[0027] Fig.13 for Fig.12 Schematic diagram of the enlarged structure at point B. DETAILED DESCRIPTION

[0028] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0029] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0030] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] See also Figure 1-13 As shown, an embodiment of the present application discloses a split-type range hood, comprising a range hood body 1, a smoke exhaust pipe 2 and a fan 3; the range hood body 1 is fixed on an indoor wall 4, the fan 3 is fixed on an outdoor wall 4, one end of the smoke exhaust pipe 2 is connected to the smoke exhaust port 111 on the range hood body 1, and the other end of the smoke exhaust pipe 2 is connected to the air inlet 311 on the fan 3.

[0033] The fan 3 includes a casing 31, a volute 32, a motor 33 and a wind wheel 34. The volute 32 is fixed inside the casing 31. The casing 31 is provided with an air inlet 311 and an air outlet 312. The air inlet end of the volute 32 is connected to the air inlet 311, and the air outlet end of the volute 32 is connected to the air outlet 312. The wind wheel 34 is coaxially fixed to the output shaft of the motor 33. The fan also includes a cover plate 35. The casing 31 is provided with an inspection port 313. The cover plate 35 is connected to the outside of the casing 31 and is used to close the inspection port 313. The motor 33 is fixed to the inner wall of the cover plate 35. When the cover plate 35 is closed, the motor 33 is fixed to the inner wall of the cover plate 35. After the inspection opening 313 is closed, the wind wheel 34 is inserted into the volute 32 along with the cover plate 35. When the cover plate 35 releases the sealing state of the inspection opening 313, the wind wheel 34 is removed from the volute 32 along with the cover plate 35. With this structure, when the fan needs to clean the oil stains adhering to the wind wheel and the inner wall of the volute, the cover plate can release the sealing state of the inspection opening. At this time, the wind wheel can be removed from the volute along with the cover plate, so that the oil stains on the wind wheel can be conveniently cleaned, and the oil stains adhering to the inner wall of the volute can be conveniently cleaned through the inspection opening.

[0034] A protective net 36 is provided at the air outlet 312, and the outer edge of the protective net 36 is fixed to the casing 31; by providing the protective net at the air outlet, the human body can be prevented from contacting the rotating wind wheel, thereby preventing personal injury and eliminating safety hazards; one of the two opposite side edges in the horizontal direction of the cover plate 35 is rotatably connected to the outer side of the casing 31, and the other of the two opposite side edges in the horizontal direction of the cover plate 35 is locked with the outer side of the casing 31; after adopting this structure, when the other of the two opposite side edges in the horizontal direction of the cover plate is unlocked from the outer side of the casing, the cover plate can be rotated and opened relative to the casing, that is, the wind wheel can be removed from the volute with the cover plate, and in the above process, there is no need to remove the cover plate from the casing, thereby facilitating the maintenance of the motor and the cleaning of the wind wheel; after the other of the two opposite side edges in the horizontal direction of the cover plate is locked with the outer side of the casing, the cover plate can close the inspection port, and at this time the wind wheel can be inserted into the volute with the cover plate.

[0035] One of the two opposite sides in the horizontal direction of the cover plate 35 is rotatably connected to the outer side of the casing 31 through two hinges 37 symmetrically arranged in the upper and lower directions; by adopting this structure, one of the two opposite sides in the horizontal direction of the cover plate can be conveniently rotatably connected to the outer side of the casing through the hinge; the other of the two opposite sides in the horizontal direction of the cover plate 35 is locked with the outer side of the casing 31 through the hand screws 38; by adopting this structure, after the cover plate is closed on the casing and the inspection port is closed, the other of the two opposite sides in the horizontal direction of the cover plate can be conveniently fastened to the casing through the hand screws.

[0036] A sealing structure is provided between the edge of the inspection port 313 and the cover plate 35; by providing the sealing structure between the edge of the inspection port and the cover plate, when the fan is working, air leakage between the cover plate and the inspection port can be avoided, so that the wind wheel can reliably draw air from the air inlet; the sealing structure includes a sealing strip 39, and a bent edge 314 folded outward is provided at the edge of the inspection port 313, the sealing strip 39 is wrapped on the bent edge 314, and the sealing strip 39 is abutted against the inner wall of the cover plate 35; by adopting this structure, after the cover plate is closed on the casing, the sealing strip can abut against the inner wall of the cover plate, that is, the sealing strip can reliably seal the gap between the edge of the inspection port and the cover plate.

[0037] The range hood body 1 includes a shell 11, a front-opening oil fume inlet 112 is provided at the rear of the shell 11, and the oil fume inlet 112 is located at the lower edge of the shell 11. A smoke exhaust passage 113 is provided inside the shell 11, and a smoke exhaust port 111 is provided at the upper end of the smoke exhaust passage 113; the range hood body 1 also includes a smoke hood 5, which is fixed inside the shell 11, and the lower end of the smoke hood 5 is connected to the upper end of the oil fume inlet 112, and the upper end of the smoke hood 5 is connected to the lower end of the smoke exhaust passage 113; the left and right sides of the lower part of the smoke hood 5 are connected to the upper end of the oil fume inlet 112, and the upper end of the smoke hood 5 is connected to the lower end of the smoke exhaust passage 113; Each side wall expands outward from top to bottom and forms a trumpet-shaped structure; through the arrangement of the smoke collecting hood, and because the left and right side walls of the lower part of the smoke collecting hood expand outward from top to bottom and form a trumpet-shaped structure, the smoke collecting hood can play a role in centralized drainage of oil smoke, thereby effectively reducing the resistance to the passage of oil smoke, so as to improve the oil smoke absorption effect of the range hood; in addition, the smoke collecting hood can also isolate the electrical components in the range hood, that is, the electrical components are located on the outside of the smoke collecting hood, so as to prevent the oil smoke from damaging the electrical components in the range hood.

[0038] A sound-absorbing structure is arranged on the inner wall of the smoke exhaust passage 113; after the sound-absorbing structure is arranged on the inner wall of the smoke exhaust passage, when the oil smoke flows through the smoke exhaust passage, the sound-absorbing structure can absorb the airflow noise generated by the flow of the oil smoke, thereby improving the kitchen environment and improving the comfort of the user; the sound-absorbing structure includes a first fire-proof sound-absorbing cotton 6 and several pieces of second fire-proof sound-absorbing cotton 7, the first fire-proof sound-absorbing cotton 6 is connected to the inner top of the smoke exhaust passage 113, and a through hole 61 is arranged on the first fire-proof sound-absorbing cotton 6, and the through hole 61 is arranged vertically corresponding to the smoke exhaust port 111, and several pieces of second fire-proof sound-absorbing cotton 7 are connected to the inner wall of the smoke exhaust passage 113 in a circumferentially distributed manner; after adopting this structure, when the oil smoke flows through the smoke exhaust passage, the first fire-proof sound-absorbing cotton and several pieces of second fire-proof sound-absorbing cotton can absorb the airflow noise generated by the flow of the oil smoke, thereby improving the kitchen environment and improving the comfort of the user The smoke exhaust passage 113 has a plurality of second fireproof and sound-absorbing cottons 7, each of which has a plurality of second fireproof and sound-absorbing cottons 7. The smoke exhaust passage 113 has a plurality of second fireproof and sound-absorbing cottons 7, each of which has a plurality of second fireproof and sound-absorbing cottons 7. The smoke exhaust passage 113 has a plurality of second fireproof and sound-absorbing cottons 7, each of which has a plurality of second fireproof and sound-absorbing cottons 7. The smoke exhaust passage 113 has a plurality of second fireproof and sound-absorbing cottons 7, each of which has a plurality of second fireproof and sound-absorbing cottons 7.

[0039] The range hood body 1 also includes a baffle 8, a guide plate 9 and a drive assembly; the guide plate 9 is arranged on the inner side of the oil fume inlet 112, and the guide plate 9 is inclined from top to bottom to the front side; the baffle 8 is arranged on the front side of the oil fume inlet 112, and the baffle 8 is rotatably connected to the shell 11; the drive assembly is fixed inside the shell 11, and the baffle 8 is transmission-connected to the drive assembly, and the drive assembly is used to drive the baffle 8 to rotate relative to the shell 11 so that the baffle 8 blocks the opening on the front side of the oil fume inlet 112 or releases the blocking of the opening on the front side of the oil fume inlet 112; when the drive assembly drives the baffle 8 to rotate relative to the shell 11 so that the baffle 8 releases the blocking of the opening on the front side of the oil fume inlet 112, an angle α is formed between the baffle 8 and the guide plate 9, and a negative pressure smoking area is formed between the baffle 8 and the guide plate 9; the angle α is 30-35 degrees; because when people cook food, the generation and diffusion of oil fume are mainly divided into three stages: the first stage is high-speed concentrated rising The first stage is the interval from the beginning of generation in the pot to within 200mm above the pot surface; the second stage is the concentrated slow rise period, which is within 200mm-400mm above the pot surface; the third stage is the diffusion period, which is more than 400mm away from the pot surface; for this reason, by controlling the angle α formed between the baffle and the guide plate, a strong negative pressure smoking area can be formed between the baffle and the guide plate, which can reliably and effectively absorb the oil fume in the concentrated slow rise period, thereby preventing the oil fume from entering the diffusion period and spreading, and further preventing the oil fume from being inhaled by the human body and polluting the indoor environment; in addition, in this embodiment, the angle α is 32.4 degrees; after adopting this structure, the negative pressure smoking area formed between the baffle and the guide plate can more reliably concentrate on absorbing the oil fume, that is, it can further reliably control the rising and diffusion of the oil fume, thereby effectively preventing the oil fume from being inhaled by the human body and improving the indoor environment.

[0040] A rotating arm 81 is fixed to the rear sides of both ends of the baffle 8. The end of the rotating arm 81 away from the baffle 8 movably penetrates the shell 11 and then extends into the shell 11 and is rotatably connected to the shell 11. By adopting this structure, the baffle can be reliably rotatably connected to the shell through the rotating arm. The driving component includes an electric actuator 101 and a connecting rod 102. The electric actuator 101 is fixed to the inner side of the shell 11. One end of the connecting rod 102 is rotatably connected to the swing rod 1011 of the electric actuator 101, and the other end of the connecting rod 102 is rotatably connected to one of the swing rods 1011. The middle part of the rotating arm 81 is rotatably connected; by adopting this driving assembly, when the swing arm of the electric actuator rotates toward one side, the rotating arm can be driven to rotate under the action of the connecting rod so that the baffle rotates toward the side of the oil fume inlet and blocks the opening of the oil fume inlet; when the swing arm of the electric actuator rotates toward the other side, the rotating arm can be driven to rotate under the action of the connecting rod so that the baffle rotates toward the side away from the oil fume inlet and releases the obstruction of the opening of the oil fume inlet; in addition, the driving pick-up has the advantages of simple structure and convenient control of the rotation of the baffle.

[0041] The guide plate 9 is detachably connected to the shell 11; the upper end of the guide plate 9 abuts against the rear inner wall of the oil fume inlet 112, and the lower end of the guide plate 9 is provided with a first folded edge 91 extending from front to rear, and the first folded edge 91 abuts against the inner bottom of the oil fume inlet 112, and the guide plate 9 is fixed to the shell 11 by at least one screw 92, and the screw portion of each screw 92 penetrates the bottom of the shell 11 and is threadedly connected with the first folded edge 91; by adopting this structure, the guide plate can be disassembled, so that it is convenient to clean the oil stains adhering to the guide plate; when it is necessary to clean the oil stains adhering to the guide plate, first remove the screws used to fix the guide plate, then remove the guide plate from the shell, and then clean the oil stains adhering to the guide plate The oil stains are cleaned, and after the guide plate is cleaned, the guide plate is reinstalled into the oil fume inlet and fixed again with screws; the upper end of the guide plate 9 is provided with a second folded edge 93 extending from top to bottom, and the second folded edge 93 abuts against the rear inner wall of the oil fume inlet 112; after adopting this structure, under the action of the second folded edge, the second folded edge can abut against the rear inner wall of the oil fume inlet, and since the second folded edge extends from top to bottom, the upper end of the guide plate can be reliably abutted against the rear inner wall of the oil fume inlet; in this embodiment, the guide plate is fixed to the shell by two screws symmetrically arranged on the left and right; after adopting this structure, the guide plate can be more reliably and stably fixed to the shell.

[0042] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A split-type range hood, characterized in that: The range hood comprises a range hood body (1), a smoke exhaust pipe (2) and a fan (3); the range hood body (1) is fixed on an indoor wall (4), the fan (3) is fixed on an outdoor wall (4), one end of the smoke exhaust pipe (2) is connected to a smoke exhaust port (111) on the range hood body (1), and the other end of the smoke exhaust pipe (2) is connected to an air inlet (311) on the fan (3).

2. The split-type range hood according to claim 1, characterized in that: The fan (3) comprises a casing (31), a volute (32), a motor (33) and a wind wheel (34); the volute (32) is fixed inside the casing (31); an air inlet (311) and an air outlet (312) are provided on the casing (31); the air inlet end of the volute (32) is connected to the air inlet (311); the air outlet end of the volute (32) is connected to the air outlet (312); the wind wheel (34) is coaxially fixed to the output shaft of the motor (33); the fan further comprises a cover plate (35 ), the casing (31) is provided with an inspection opening (313), the cover plate (35) is connected to the outer side of the casing (31) and is used to close the inspection opening (313), and the motor (33) is fixed on the inner wall of the cover plate (35); when the cover plate (35) closes the inspection opening (313), the wind wheel (34) is inserted into the volute (32) along with the cover plate (35); when the cover plate (35) releases the closing state of the inspection opening (313), the wind wheel (34) is removed from the volute (32) along with the cover plate (35).

3. The split-type range hood according to claim 2, characterized in that: A protective net (36) is provided at the air outlet (312), and the outer edge of the protective net (36) is fixed to the casing (31); one of the two opposite side edges of the cover plate (35) in the horizontal direction is rotatably connected to the outer side of the casing (31), and the other of the two opposite side edges of the cover plate (35) in the horizontal direction is locked with the outer side of the casing (31).

4. The split-type range hood according to claim 3, characterized in that: One of the two opposite side edges of the cover plate (35) in the horizontal direction is rotatably connected to the outer side of the housing (31) via two hinges (37) symmetrically arranged in the upper and lower directions; the other of the two opposite side edges of the cover plate (35) in the horizontal direction is locked with the outer side of the housing (31) via a hand-tightened bolt (38).

5. The split-type range hood according to claim 2, characterized in that: A sealing structure is provided between the edge of the inspection opening (313) and the cover plate (35); the sealing structure comprises a sealing strip (39); a bent edge (314) folded outward is provided at the edge of the inspection opening (313); the sealing strip (39) is wrapped around the bent edge (314); and the sealing strip (39) abuts against the inner side wall of the cover plate (35).

6. The split-type range hood according to any one of claims 1 to 5, characterized in that: The range hood body (1) comprises a shell (11), a front-opening oil fume inlet (112) is arranged at the rear of the shell (11), the oil fume inlet (112) is located at the lower edge of the shell (11), a smoke exhaust passage (113) is arranged inside the shell (11), and a smoke exhaust port (111) is arranged at the upper end of the smoke exhaust passage (113); the range hood body (1) also comprises a smoke hood (5), the smoke hood (5) is fixed inside the shell (11), the lower end of the smoke hood (5) is connected to the upper end of the oil fume inlet (112), and the upper end of the smoke hood (5) is connected to the lower end of the smoke exhaust passage (113); the left and right side walls of the lower part of the smoke hood (5) expand outwards from top to bottom and form a trumpet-shaped structure.

7. The split-type range hood according to claim 6, characterized in that: A sound-absorbing structure is arranged on the inner wall of the smoke exhaust passage (113); the sound-absorbing structure comprises a first fireproof sound-absorbing cotton (6) and a plurality of second fireproof sound-absorbing cottons (7); the first fireproof sound-absorbing cotton (6) is connected to the inner top of the smoke exhaust passage (113); a through hole (61) is arranged on the first fireproof sound-absorbing cotton (6); the through hole (61) is arranged vertically corresponding to the smoke exhaust port (111); a plurality of second fireproof sound-absorbing cottons (7) are connected to the inner wall of the smoke exhaust passage (113) in a circumferentially distributed manner; a sound-absorbing structure is fixed on the inner wall of the lower end of the smoke exhaust passage (113); A "concave"-shaped support plate (12) vertically corresponds to a plurality of pieces of the second fireproof and sound-absorbing cotton (7), and a slot (121) with an open upper end is formed on the inner side of each of the support plates (12). The lower end of each piece of the second fireproof and sound-absorbing cotton (7) is inserted into the slot (121) at the corresponding position and abuts against the inner wall of the smoke exhaust passage (113). The lower end of the outer edge of the first fireproof and sound-absorbing cotton (6) abuts against the upper ends of a plurality of pieces of the second fireproof and sound-absorbing cotton (7), and the upper end of the first fireproof and sound-absorbing cotton (6) abuts against the inner top of the smoke exhaust passage (113).

8. The split-type range hood according to claim 6, characterized in that: The range hood body (1) further comprises a baffle (8), a guide plate (9) and a driving assembly; the guide plate (9) is arranged on the inner side of the oil fume inlet (112), and the guide plate (9) is inclined from top to bottom toward the front side; the baffle (8) is arranged on the front side of the oil fume inlet (112), and the baffle (8) is rotatably connected to the shell (11); the driving assembly is fixed inside the shell (11), the baffle (8) is transmission-connected to the driving assembly, and the driving assembly is used to drive the baffle The plate (8) rotates relative to the housing (11) so that the baffle (8) blocks the opening on the front side of the oil fume inlet (112) or releases the blocking of the opening on the front side of the oil fume inlet (112); when the driving component drives the baffle (8) to rotate relative to the housing (11) so that the baffle (8) releases the blocking of the opening on the front side of the oil fume inlet (112), an angle α is formed between the baffle (8) and the guide plate (9), and a negative pressure smoking area is formed between the baffle (8) and the guide plate (9); the angle α is 30-35 degrees.

9. The split-type range hood according to claim 8, characterized in that: A rotating arm (81) is fixed to the rear sides of both left and right ends of the baffle (8); one end of the rotating arm (81) away from the baffle (8) movably penetrates the shell (11) and then extends into the shell (11) and is rotatably connected to the shell (11); the driving assembly comprises an electric actuator (101) and a connecting rod (102); the electric actuator (101) is fixed to the inner side of the shell (11); one end of the connecting rod (102) is rotatably connected to a swing rod (1011) of the electric actuator (101); and the other end of the connecting rod (102) is rotatably connected to the middle part of one of the rotating arms (81).

10. The split-type range hood according to claim 9, characterized in that: The guide plate (9) is detachably connected to the shell (11); the upper end of the guide plate (9) abuts against the rear inner wall of the oil fume inlet (112); the lower end of the guide plate (9) is provided with a first folded edge (91) extending from front to rear, and the first folded edge (91) abuts against the inner bottom of the oil fume inlet (112); the guide plate (9) is fixed to the shell (11) by at least one screw (92), and the screw portion of each screw (92) passes through the bottom of the shell (11) and is threadedly connected to the first folded edge (91); the upper end of the guide plate (9) is provided with a second folded edge (93) extending from top to bottom, and the second folded edge (93) abuts against the rear inner wall of the oil fume inlet (112).

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