Extractor hood capable of being retracted upwards and hidden

Abstract

The range hood comprises a smoke collecting box and an air cabinet shell used for being arranged in a cabinet, a fan is arranged in the air cabinet shell, a sliding opening is formed in the lower end of the air cabinet shell, the smoke collecting box is arranged in the sliding opening in an up-down sliding mode, an air suction opening is formed in the lower portion of the smoke collecting box, and the air suction opening is communicated with the fan through the upper end of the smoke collecting box; the device further comprises a lifting driving mechanism which drives the smoke collecting box to move up and down. According to the range hood capable of being retracted upwards and hidden, the space, occupied by the range hood, of a kitchen can be reduced when the range hood is not used, and when the range hood needs to be used, the smoke collecting box can be conveniently descended to extend to a working position through the lifting driving mechanism.

Description

Technical Field

[0001] The utility model relates to the field of range hoods, in particular to a range hood that can be retracted and hidden. Background Art

[0002] At present, in order to make full use of the kitchen space, a suspended cabinet is usually provided on the wall of the kitchen. The range hood is arranged at the lower side of the cabinet, which will cause the cabinet to be set too high and the storage space of the cabinet to be too small. A gap is provided at the lower part of the cabinet to avoid the range hood, which will destroy the overall appearance of the cabinet and make the cabinet complicated to manufacture. The upper part of some range hoods can be hidden in the cabinet for installation, but when the range hood is not in use, the lower part of the range hood (smoke collecting and converging structure) still occupies the space of the kitchen and is not conducive to the neat visual experience in the kitchen. Therefore, it is necessary to improve the range hood of the prior art. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a retractable and concealed range hood, which can reduce the space occupied by the range hood in the kitchen when it is not in use.

[0004] The purpose of the utility model is achieved through the following technical solutions.

[0005] The utility model discloses a retractable and concealable range hood, comprising a smoke collecting box and a wind cabinet shell for being arranged in a cupboard, a fan being arranged in the wind cabinet shell, a sliding opening being arranged at the lower end of the wind cabinet shell, the smoke collecting box being slidably arranged on the sliding opening up and down, an air suction port being arranged at the lower part of the smoke collecting box, the air suction port being connected to the fan through the upper end of the smoke collecting box; and a lifting drive mechanism being further included, the lifting drive mechanism driving the smoke collecting box to move up and down.

[0006] Preferably, the lifting drive mechanism includes a lifting motor assembly, a transmission shaft, a right-angle commutator, a screw and a telescopic rod. The lifting motor assembly is installed in the upper part of the wind cabinet shell, and the transmission shaft is transversely arranged in the upper part of the wind cabinet shell. The lifting motor assembly drives the transmission shaft to rotate, and the screw is distributed in the left and right ends of the wind cabinet shell. The left and right ends of the transmission shaft are respectively connected to the upper end of the screw through the corresponding right-angle commutator drive, and the telescopic rod is slidably arranged up and down. The screw is threadedly connected to the corresponding telescopic rod, and the telescopic rod is fixedly connected to the smoke collection box.

[0007] Preferably, a height adjustment screw is screwed on the lower end of the telescopic rod, a telescopic rod housing is provided in the smoke collecting box, the telescopic rod housing is relatively fixedly connected to the smoke collecting box, the telescopic rod is correspondingly arranged in the telescopic rod housing, a compression spring is provided between the bottom of the telescopic rod housing and the lower end of the telescopic rod, the height adjustment screw passes through the bottom of the telescopic rod housing and the compression spring, and the head of the height adjustment screw is located on the lower side of the bottom of the telescopic rod housing.

[0008] Preferably, a sealing strip is provided between the sliding opening and the outer wall of the smoke collecting box.

[0009] Preferably, the sliding opening is provided with guide wheels corresponding to the sliding opening, the guide wheels are distributed around the smoke collecting box, and the guide wheels are close to and connected to the outer wall of the smoke collecting box.

[0010] Preferably, the air intake port is formed at the front lower end of the smoke collecting box, and the air intake port is correspondingly provided with a smoke barrier plate that can swing up and down for opening and closing the air intake port, and a swing arm is relatively fixedly connected to the rear of the smoke barrier plate, and the swing arm is hinged to the smoke collecting box; it also includes a smoke barrier plate opening and closing mechanism, and the smoke barrier plate opening and closing mechanism includes a door opening gas spring, a slider, a slide rail and a connecting rod, the cylinder body of the door opening gas spring is hinged to the wind cabinet shell, the piston rod of the door opening gas spring is hinged to the slider, and the slide rail is installed in the smoke collecting box, the slider is slid up and down and connected to the slide rail, and a push plate for limiting the slider is formed at the lower end of the slide rail, one end of the connecting rod is hinged to the swing arm, and the other end of the connecting rod is hinged to the slider.

[0011] The vents in the fan are connected to the vents at the bottom of the fan housing, and the vents in the fan housing are connected to the vents at the bottom of the fan housing.

[0012] Preferably, a control panel is provided at the lower end of the wind cabinet shell, and a bottom panel is provided at the bottom of the oil cup, and the bottom panel can be aligned with the control panel.

[0013] Compared with the prior art, the utility model has the following beneficial effects: a smoke collecting box and a wind cabinet shell for being arranged in a cupboard are provided, a fan is arranged in the wind cabinet shell, a sliding opening is provided at the lower end of the wind cabinet shell, the smoke collecting box is slidably arranged on the sliding opening up and down, an air suction port is provided at the lower part of the smoke collecting box, the air suction port is connected to the fan through the upper end of the smoke collecting box, and a lifting drive mechanism drives the smoke collecting box to move up and down, so when the range hood is not needed, the smoke collecting box can be lifted and retracted into the wind cabinet shell by the lifting drive mechanism, so that the space occupied by the range hood in the kitchen when it is not needed can be reduced, and when the range hood is needed, the smoke collecting box can be conveniently lowered and extended to the working position by the lifting drive mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the range hood of the utility model in working state when viewed from the front.

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the range hood of the utility model when viewed from the front.

[0016] Figure 3 The utility model is a rear-view stereoscopic structural schematic diagram of a range hood with the rear wall plate of the wind cabinet shell and the rear wall plate of the smoke collecting box removed.

[0017] Figure 4 It is a schematic cross-sectional structure diagram of the range hood of the utility model in the front view direction.

[0018] Figure 5 for Figure 4 Schematic diagram of the local structure at point A.

[0019] Figure 6 for Figure 5 Schematic diagram of the local structure at location B.

[0020] Figure 7 It is a schematic cross-sectional structure diagram of the range hood of the utility model viewed from the left.

[0021] Figure 8 It is a rear-view stereoscopic structural schematic diagram of the oil cup, end oil groove, air duct cavity, oil guide groove and fan assembly of the range hood of the present invention.

[0022] Fig. 9 for Figure 8 Schematic diagram of the local structure at location C.

[0023] Fig.10 It is a three-dimensional structural schematic diagram of a right-angle commutator, a screw sleeve, a telescopic rod and a bracket assembly of the range hood of the utility model.

[0024] Fig.11 It is a schematic diagram of the three-dimensional structure of the range hood of the utility model in a stored and hidden state, viewed from above.

[0025] Description of reference numerals: wind cabinet shell 1; exhaust port 101 of range hood; sliding port 102; air duct cavity 103; oil guide inclined plate 104; control panel 11; end oil tank 13; oil dripping hole 131; smoke collecting box 2; air inlet 201; lower end plate 202 of smoke collecting box; telescopic rod sleeve 203; smoke blocking plate 21; swing arm 211; oil cup 22; bottom panel 221; hanging plate 222; hanging nail 223; smoke blocking plate opening and closing mechanism 23; opening Door gas spring 231; slider 232; slide rail 233; push plate 2331; connecting rod 234; fan 3; fan air inlet 301; lifting drive mechanism 4; lifting motor assembly 41; transmission shaft 42; right-angle commutator 43; screw 44; telescopic rod 45; guide rib 451; height adjustment screw 46; compression spring 47; screw sleeve 48; guide wheel 5; sealing strip 6; bracket 7; oil guide groove 8. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings.

[0027] The retractable and concealed range hood of the utility model is as follows: Figures 1 to 3 As shown, it includes a smoke collecting box 2 and a wind cabinet shell 1 for being arranged in the cabinet, a fan 3 is arranged in the wind cabinet shell 1, a range hood exhaust port 101 is arranged on the top of the wind cabinet shell 1, and the air outlet of the fan 3 is connected to the range hood exhaust port 101, as shown in FIG. Figure 5 , Figure 8 and Fig. 9 As shown, the lower end of the wind cabinet housing 1 is provided with a sliding opening 102, the sliding opening 102 is a rectangular opening, and the smoke collecting box 2 is slidably arranged on the sliding opening 102 up and down. In other words, the smoke collecting box 2 passes through the sliding opening 102, as shown in FIG. Figure 1 and Figure 7 As shown, the lower part of the smoke collecting box 2 is provided with an air suction port 201, and the air suction port 201 is connected to the fan 3 through the upper end of the smoke collecting box 2. That is, the smoke collecting box 2 is in the shape of a rectangular box, and the upper end of the smoke collecting box 2 is provided with an opening; Figure 4 As shown, the range hood of the present invention also includes a lifting drive mechanism 4, which drives the smoke collection box 2 to move up and down, that is, the lifting drive mechanism 4 is a linear motion drive structure. For example, the lifting drive mechanism 4 can be in the form of a motor-driven gear rack assembly, or for example, the lifting drive mechanism 4 can include a cylinder or an electric push rod.

[0028] In actual application, a rectangular hole is opened on the bottom surface of the cabinet on the wall, and then the wind cabinet shell 1 is installed in the cabinet, and the smoke collecting box 2 is aligned with the above-mentioned rectangular hole. When the range hood needs to be used, the lifting drive mechanism 4 drives the smoke collecting box 2 to move downward and extend, so that the air intake port 201 is close to the pot. Then, when the fan 3 is running, the oil smoke generated by the food in the pot is sucked into the air intake port 201, and the oil smoke airflow then flows upward to the upper end of the smoke collecting box 2, and the oil smoke airflow then enters the wind cabinet shell 1, and the oil smoke airflow is sucked into the volute of the fan 3, and the oil smoke airflow then passes through the range hood exhaust port 101 and is discharged into the smoke exhaust duct. When the range hood is not needed, the lifting drive mechanism 4 drives the smoke collecting box 2 to move upward, so that the smoke collecting box 2 retreats into the wind cabinet shell 1, and by setting appropriate height dimensions between the smoke collecting box 2 and the wind cabinet shell 1, such as Fig.11 As shown, the smoke collecting box 2 can be completely hidden in the wind cabinet shell 1. Since the wind cabinet shell 1 is installed in the cabinet, the smoke collecting box 2 can also be hidden in the cabinet, thereby reducing the space occupied by the range hood in the kitchen when it is not needed.

[0029] Furthermore, if Figure 4 and Figure 5 As shown, the lifting drive mechanism 4 includes a lifting motor assembly 41, a transmission shaft 42, a right-angle commutator 43, a screw 44 and a telescopic rod 45. The lifting motor assembly 41 is installed in the upper part of the wind cabinet housing 1. Specifically, as shown in Figure 3 As shown, the lifting motor assembly 41 is installed on the motor base, and the motor base is installed on the rear inner wall of the wind cabinet shell 1. The transmission shaft 42 is horizontally arranged in the upper part of the wind cabinet shell 1. In other words, the axis of the transmission shaft 42 is extended in the left and right directions. The lifting motor assembly 41 drives the transmission shaft 42 to rotate. For example, the lifting motor assembly 41 is a combination of a motor and a reducer. The transmission shaft 42 can be a shell that passes through the above-mentioned reducer. The screw 44 is distributed in the left and right ends of the wind cabinet shell 1. The left and right ends of the transmission shaft 42 are respectively driven by the corresponding right-angle commutator 43 to connect the upper end of the screw 44, and the telescopic rod 45 is slidably arranged up and down. For example, Fig.10 As shown, the lifting drive mechanism 4 also includes a fixedly arranged screw sleeve 48, the bracket 7 is installed on the lower side of the right-angle commutator 43, the upper end of the screw sleeve 48 is fixedly connected to the bracket 7, the screw 44 is arranged in the screw sleeve 48, and the outer side of the telescopic rod 45 is formed with a guide rib 451, which can be linearly slidably connected with the screw sleeve 48 to prevent the telescopic rod 45 from rotating. The screw 44 is screwed with the corresponding telescopic rod 45. In other words, the number of the right-angle commutator 43, the screw 44 and the telescopic rod 45 are two respectively, and the right-angle commutator 43 can include two mutually meshing bevel gears, such as Figure 5As shown, specifically, the telescopic rod 45 can be tubular, and a nut portion is provided in the upper end portion of the telescopic rod 45, and the screw 44 is screwed to the nut portion, so that the screw 44 can be relatively spirally inserted into the telescopic rod 45, and the telescopic rod 45 is fixedly connected to the smoke collecting box 2; therefore, when the lifting motor assembly 41 is operating, the lifting motor assembly 41 drives the transmission shaft 42 to rotate, and the transmission shaft 42 drives the screws 44 on the left and right sides to rotate, so that the screw 44 can drive the telescopic rod 45 to move up and down, so that the lifting motor assembly 41 can drive the smoke collecting box 2 to move up and down, and the above-mentioned transmission structure is conducive to the smoke collecting box 2 to be able to realize electric lifting and lowering, which is conducive to the convenient use of the range hood, and because the screws 44 are distributed in the left and right ends of the wind cabinet shell 1, the force of the telescopic rod 45 on the smoke collecting box 2 is balanced on the left and right, which is conducive to making the smoke collecting box 2 rise and fall smoothly and avoid jamming.

[0030] Furthermore, if Figure 4 and Figure 6 As shown, the lower end of the telescopic rod 45 is screwed with a height adjustment screw 46. Specifically, the lower end of the telescopic rod 45 is provided with an end plate, and the height adjustment screw 46 is screwed with the end plate. A telescopic rod casing 203 is provided in the smoke collecting box 2. The telescopic rod casing 203 is relatively fixedly connected to the smoke collecting box 2. Specifically, a flange is provided at the upper end of the telescopic rod casing 203, and the flange is fixed to the top of the smoke collecting box 2 by corresponding screws. The telescopic rod 45 is correspondingly arranged in the telescopic rod casing 203. Inner partitions are respectively provided on both sides of the interior of the smoke collecting box 2. The smoke collecting box air duct is formed between the above-mentioned inner partitions, and the telescopic rod casing 203 is also isolated on the left and right sides of the above-mentioned smoke collecting box air duct. Figure 6 As shown, a compression spring 47 is provided between the bottom of the telescopic rod housing 203 and the lower end of the telescopic rod 45, and a height adjustment screw 46 passes through the bottom of the telescopic rod housing 203 and the compression spring 47. The head of the height adjustment screw 46 is located at the lower side of the bottom of the telescopic rod housing 203, which is equivalent to the smoke collecting box 2 being hung on the head of the height adjustment screw 46. Therefore, by rotating the height adjustment screw 46, the telescopic rod 45 can be moved up and down relative to the telescopic rod housing 203, so as to facilitate the leveling of the left and right ends of the smoke collecting box 2. Since the compression spring 47 supports the lower end of the telescopic rod 45 and the bottom of the telescopic rod housing 203, the smoke collecting box 2 is prevented from loosening upward relative to the telescopic rod 45, and the height adjustment screw 46 is prevented from rotating loose. Moreover, when the smoke collecting box 2 is in the downward extended working state, the smoke collecting box 2 is accidentally subjected to an upward collision force, and the compression spring 47 can play a buffering role.

[0031] Furthermore, if Figure 5 and Figure 7 As shown, a sealing strip 6 is provided between the sliding opening 102 and the outer wall of the smoke collecting box 2 , thereby preventing air leakage between the sliding opening 102 and the outer wall of the smoke collecting box 2 .

[0032] Furthermore, if Figure 5 and Figure 7 As shown, the guide wheel 5 is provided corresponding to the sliding opening 102, and the guide wheel 5 is distributed around the smoke collecting box 2. The guide wheel 5 is close to the outer wall of the smoke collecting box 2, so that the smoke collecting box 2 is prevented from slidingly connecting to the wind cabinet shell 1 through a linear guide rail. Since there is a lot of oil inside the range hood, the linear guide rail is prone to sliding unsmoothly. Since the guide wheel 5 and the outer wall of the smoke collecting box 2 are openly connected, the oil stains are prevented from significantly affecting the up and down movement of the smoke collecting box 2. Moreover, the guide wheel 5 and the outer wall of the smoke collecting box 2 are rollingly connected, and the friction force is relatively small. Combined with the guide wheel 5 distributed around the smoke collecting box 2, the smoke collecting box 2 can be flexibly moved up and down in a directional manner. The sealing strip 6 is preferably arranged below the guide wheel 5.

[0033] Furthermore, if Figure 1 As shown, the air intake port 201 is formed at the front lower end of the smoke collecting box 2, so that the range hood of the utility model is a side suction range hood, and the air intake port 201 is correspondingly provided with a smoke blocking plate 21 that can swing up and down for opening and closing the air intake port 201, as shown in FIG. Figure 7 As shown, a swing arm 211 is relatively fixedly connected to the back of the smoke blocking plate 21, and the swing arm 211 is hinged to the smoke collecting box 2, and the swing arm 211 extends into the smoke collecting box 2, as shown in FIG. Figure 7 As shown, the range hood of the present invention further includes a smoke barrier opening and closing mechanism 23, which includes a door opening gas spring 231, a slider 232, a slide rail 233 and a connecting rod 234. The cylinder of the door opening gas spring 231 is hinged to the wind cabinet shell 1. Specifically, the upper end of the cylinder of the door opening gas spring 231 is hinged to the bracket 7, the lower end of the piston rod of the door opening gas spring 231 is hinged to the slider 232, and the slide rail 233 is installed in the smoke collecting box 2. Specifically, as shown in FIG. Figure 1 As shown, the slide rail 233 and the slider 232 are located in the air duct of the smoke collecting box. The slide rail 233 is installed on the inner partition plate by corresponding screws. The slider 232 slides up and down to connect the slide rail 233. The lower end of the slide rail 233 is formed with a push plate 2331 for limiting the slider 232. One end of the connecting rod 234 is hinged to the swing arm 211, and the other end of the connecting rod 234 is hinged to the slider 232. When the lifting drive mechanism 4 drives the smoke collecting box 2 to move upward, the door opening gas spring 231 supports the slider 232 downward, so the slider 232 moves downward relative to the slide rail 233, as shown in FIG. Figure 7As shown, the hinge point between the connecting rod 234 and the slider 232 also moves downward relatively, so that the connecting rod 234 pulls the swing arm 211 downward relatively, which will cause the smoke barrier 21 to swing downward to an upright state, that is, the smoke barrier 21 closes the air intake port 201, and at this time the slider 232 just reaches the push plate 2331, so the push plate 2331 limits the slider 232 to prevent the slider 232 from moving downward relatively and disengaging from the slide rail 233, and the push plate 2331 moves upward to push the slider 232, so that the piston rod of the door opening gas spring 231 retracts upward, and since the smoke barrier 21 is already in an upright state, the smoke barrier 21 can pass through the sliding opening 102 and enter the wind cabinet shell 1, so that the smoke collecting box 2 can be smoothly retracted into the wind cabinet shell 1, effectively increasing the retraction degree of the smoke collecting box 2. When the lifting drive mechanism 4 drives the smoke collecting box 2 to move downward and extend, the push plate 2331 moves downward, and because the door opening gas spring 231 pushes the slider 232 downward, the slider 232 moves downward synchronously with the smoke collecting box 2. During this process, the smoke blocking plate 21 remains in an upright closed state. When the push plate 2331 moves downward to a certain extent, the piston rod of the door opening gas spring 231 is fully extended, so the push plate 2331 is disengaged from the slider 232 downward. Figure 7 As shown, the slider 232 moves upward relatively, and the slider 232 drives the connecting rod 234 to push the swing arm 211 forward and upward, so that the smoke barrier 21 swings forward and upward to open. In the working state, the smoke barrier 21 is located above and in front of the air inlet 201, as shown in FIG. Figure 7 As shown, the smoke barrier 21 can block the oil smoke flow, making it easier for the oil smoke flow to be sucked into the air intake port 201. By setting the above-mentioned smoke barrier opening and closing mechanism 23, when the lifting drive mechanism 4 drives the smoke collecting box 2 to switch between the working state and the storage and hidden state, the smoke barrier 21 can stably open or close relatively by itself, avoiding the smoke barrier 21 from colliding with the sliding port 102, and also avoiding the situation that the smoke collecting box 2 is extended to the working position but the air intake port 201 is not opened.

[0034] Furthermore, if Figure 8 and Fig. 9As shown, an air duct cavity 103 is formed in the rear part of the wind cabinet shell 1, and the air duct cavity 103 is a rectangular cavity. The lifting motor assembly 41 and the transmission shaft 42 are located on the upper side of the air duct cavity 103, and the sliding port 102 is arranged at the lower end of the air duct cavity 103. The fan 3 is arranged at the front side of the air duct cavity 103. The fan 3 is provided with a fan air inlet 301, and the fan air inlet 301 is arranged backward. The fan air inlet 301 is connected to the air duct cavity 103, and an oil guide inclined plate 104 arranged in a front high and rear low shape is provided in the wind cabinet shell 1. The oil guide inclined plate 104 is located directly below the fan 3, and the rear end of the oil guide inclined plate 104 is connected to the front inner wall of the air duct cavity 103. In other words, the oil guide inclined plate 104 is located at the front side of the air duct cavity 103, and the front inner wall of the air duct cavity 103 is provided with an oil guide groove 8 for catching the oil flowing from the oil guide inclined plate 104. The oil guide groove 8 is arranged horizontally, and the wind cabinet shell The left and right ends of the range hood 1 are provided with end oil grooves 13 for catching the oil flowing down from the left and right ends of the oil guide groove 8, and the oil on the left and right inner walls of the air duct cavity 103 can also flow into the end oil grooves 13, and the end oil grooves 13 are formed with oil drip holes 131. The lower end of the smoke collecting box 2 is hung with an oil cup 22, and the oil drip holes 131 are located directly above the oil cup 22, so that the oil dripping from the fan 3 can be caught by the oil guide inclined plate 104, and the oil flows backward and downward along the oil guide inclined plate 104 to the front inner wall of the air duct cavity 103, and then the oil on the front inner wall of the air duct cavity 103 flows into the oil guide groove 8, the oil flows to the left and right ends of the oil guide groove 8, and then the oil flows into the end oil grooves 13, and then the oil falls into the oil cup 22 through the oil drip holes 131, so that the oil accumulated inside the range hood can be effectively collected in the oil cup 22 for easy cleaning. Figure 8 As shown, a hanging plate 222 is formed on the upper side of the oil cup 22, and a hanging hole is formed on the hanging plate 222. Figure 6 As shown, the hanging nail 223 is installed on the lower end plate 202 of the smoke collecting box 2, and the hanging nail 223 is hung on the edge of the small end of the above-mentioned hanging hole. When the oil cup 22 needs to be removed, the oil cup 22 is moved to the right so that the hanging nail 23 slides relatively to the large end of the above-mentioned hanging hole, so that the hanging nail 23 can be relatively separated from the hanging plate 222 upward.

[0035] Furthermore, if Figure 1 As shown, a control panel 11 is disposed at the lower end of the wind cabinet housing 1, and a bottom panel 221 is disposed at the bottom of the oil cup 22. The bottom panel 221 may be a glass plate, such as Fig.11As shown, when the lifting drive mechanism 4 drives the smoke collecting box 2 to move upward to the height position corresponding to the storage hidden state, the bottom panel 221 can be aligned with the control panel 11, so it is convenient to clean. The sliding opening 102 is arranged at the rear side of the control panel 11, so that the smoke collecting box 2 is relatively set back, and the arrangement layout is reasonable to avoid the smoke collecting box 2 from obstructing the pots and pans. The bottom of the control panel 11 can be flush with the bottom surface of the cabinet, or the control panel 11 can be slightly protruding downward from the bottom surface of the cabinet. Through the above arrangement, the range hood is better hidden in the cabinet, which is conducive to making the kitchen interior have a better overall visual experience. Since the bottom panel 221 is set, it is conducive to making the bottom of the range hood in the storage hidden state have an overall consistent appearance. Since the relative height of the smoke collecting box 2 and the telescopic rod 45 can be adjusted by the height adjustment screw 46, when the range hood is in the storage hidden state, the bottom panel 221 can be adjusted to be flush with the control panel 11 by adjusting the height adjustment screw 46.

Claims

1. A retractable and concealed range hood. Features: The invention comprises a smoke collecting box (2) and a wind cabinet shell (1) for being arranged in a cabinet, wherein a fan (3) is arranged in the wind cabinet shell (1), a sliding opening (102) is arranged at the lower end of the wind cabinet shell (1), the smoke collecting box (2) is slidably arranged on the sliding opening (102) up and down, an air suction port (201) is arranged at the lower part of the smoke collecting box (2), and the air suction port (201) is connected to the fan (3) through the upper end of the smoke collecting box (2); and also comprises a lifting drive mechanism (4), wherein the lifting drive mechanism (4) drives the smoke collecting box (2) to move up and down.

2. The retractable and concealable range hood according to claim 1, Features: The lifting drive mechanism (4) comprises a lifting motor assembly (41), a transmission shaft (42), a right-angle commutator (43), a screw (44) and a telescopic rod (45). The lifting motor assembly (41) is installed in the upper part of the wind cabinet shell (1). The transmission shaft (42) is transversely arranged in the upper part of the wind cabinet shell (1). The lifting motor assembly (41) drives the transmission shaft (42) to rotate. The screw (44) is distributed in the left and right ends of the wind cabinet shell (1). The left and right ends of the transmission shaft (42) are respectively connected to the upper end of the screw (44) through the corresponding right-angle commutator (43). The telescopic rod (45) is slidably arranged up and down. The screw (44) is screwed to the corresponding telescopic rod (45). The telescopic rod (45) is fixedly connected to the smoke collecting box (2).

3. The retractable and concealable range hood according to claim 2, Features: The lower end of the telescopic rod (45) is screwed with a height adjustment screw (46); a telescopic rod casing (203) is provided in the smoke collecting box (2); the telescopic rod casing (203) is relatively fixedly connected to the smoke collecting box (2); the telescopic rod (45) is correspondingly arranged in the telescopic rod casing (203); a compression spring (47) is provided between the bottom of the telescopic rod casing (203) and the lower end of the telescopic rod (45); the height adjustment screw (46) passes through the bottom of the telescopic rod casing (203) and the compression spring (47); and the head of the height adjustment screw (46) is located at the lower side of the bottom of the telescopic rod casing (203).

4. The retractable and concealable range hood according to claim 1, Features: A sealing strip (6) is provided between the sliding opening (102) and the outer wall of the smoke collecting box (2).

5. The retractable and concealable range hood according to claim 1, Features: The sliding opening (102) is provided with a guide wheel (5) corresponding to the sliding opening. The guide wheels (5) are distributed around the smoke collecting box (2). The guide wheels (5) are close to and connected to the outer wall of the smoke collecting box (2).

6. The retractable and concealable range hood according to claim 1, Features: The air intake port (201) is formed at the front lower end of the smoke collecting box (2); the air intake port (201) is provided with a smoke blocking plate (21) capable of swinging up and down for opening and closing the air intake port (201); a swing arm (211) is relatively fixedly connected to the rear of the smoke blocking plate (21); the swing arm (211) is hinged to the smoke collecting box (2); and the smoke blocking plate opening and closing mechanism (23) is also included. The smoke blocking plate opening and closing mechanism (23) includes a door opening gas spring (231), a slider (232), a slide rail (233) and a connecting rod (234); the door opening The cylinder body of the gas spring (231) is hinged to the wind cabinet housing (1), the piston rod of the door-opening gas spring (231) is hinged to the slider (232), the slide rail (233) is installed in the smoke collecting box (2), the slider (232) is connected to the slide rail (233) by sliding up and down, and a push plate (2331) for limiting the slider (232) is formed at the lower end of the slide rail (233), one end of the connecting rod (234) is hinged to the swing arm (211), and the other end of the connecting rod (234) is hinged to the slider (232).

7. The retractable and concealable range hood according to claim 1, Features: An air duct cavity (103) is formed in the rear part of the wind cabinet shell (1), the sliding opening (102) is arranged at the lower end of the air duct cavity (103), the fan (3) is arranged at the front side of the air duct cavity (103), the fan (3) is provided with a fan air inlet (301), the fan air inlet (301) is arranged backward, the fan air inlet (301) is connected to the air duct cavity (103), and an oil guide inclined plate (104) is arranged in a shape of high front and low rear in the wind cabinet shell (1), the oil guide inclined plate (104) is located directly below the fan (3), and the oil guide inclined plate (104) is arranged at the bottom of the wind cabinet shell (1). 04) is connected to the front inner wall of the air duct cavity (103), and the front inner wall of the air duct cavity (103) is provided with an oil guide groove (8) for catching the oil flowing from the oil guide inclined plate (104), and the oil guide groove (8) is arranged horizontally. The left and right ends of the wind cabinet shell (1) are provided with end oil grooves (13) for catching the oil flowing from the left and right ends of the oil guide groove (8), and the end oil grooves (13) are formed with oil drip holes (131). The lower end of the smoke collecting box (2) is hung with an oil cup (22), and the oil drip hole (131) is located directly above the oil cup (22).

8. The retractable and concealable range hood according to claim 7, Features: A control panel (11) is provided at the lower end of the wind cabinet housing (1), and a bottom panel (221) is provided at the bottom of the oil cup (22), and the bottom panel (221) can be aligned with the control panel (11).

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