CN111692619A - Downdraft smoke stove all-in-one machine - Google Patents

Abstract

The invention belongs to the technical field of kitchen appliances, in particular to a downdraft type smoke-stove integrated machine, which comprises a cabinet body; The filter screen cover is arranged in the middle of the cooker, and it includes a hollow smoking cover, the top of the smoking cover is provided with a suction port close to the cooker, and the bottom is provided with a column-shaped first filter screen. A smoking channel is formed, the first filter screen is arranged in the smoking box and an oil collecting box is arranged at the bottom; the smoking box is provided with a fan, the air inlet of the fan is connected to the inner cavity of the smoking box, and the air outlet of the fan is connected with an exhaust channel. The filter screen cover of the present invention is cylindrical and arranged in the middle of the cooker, and has the characteristics of small size, convenient installation and good oil fume suction effect; In addition, the column-shaped first filter screen can increase the filtering area by changing the height and improve the filtering effect.

Description

A downdraft type smoke stove integrated machine

technical field

The invention belongs to the technical field of kitchen appliances, in particular to a downdraft type smoke-stove integrated machine.

Background technique

A range hood, also known as a range hood, is a kitchen appliance that purifies the kitchen environment. It is installed above the kitchen stove, and can quickly extract the waste from the stove and the fume that is harmful to the human body during the cooking process, and discharge it outdoors. At the same time, the oil fume is condensed and collected to reduce pollution, purify the air, and have the safety protection effect of anti-virus and explosion-proof.

The traditional range hood and stove are two separate electrical appliances, which take up a lot of space, which greatly affects the use space of small-sized kitchens. Therefore, an all-in-one smoke stove has appeared on the market, and at the same time, the cost is also reduced compared to purchasing two products.

The utility model with the Chinese patent number CN201921032597.2 discloses "An integrated machine for smoke and stove", which comprises: a cabinet body; a stove body, which is installed on the cabinet body; a smoke collecting hood, which is installed on the cabinet body; It is fixed on the top of the fume collecting hood and can be lifted up and down with the rise and fall of the fume collecting hood. The top of the thermal insulation panel is provided with a heating part that can be used to heat food, and the bottom of the thermal insulation panel is provided with a smoke guide part that can guide the oil fume. , and while the smoke hood achieves the smoking effect, by setting a thermal insulation panel on the top of the fume hood, the thermal insulation panel can realize the function of heating food, enriching the functions of the smoke stove integrated machine, and the smoke guide at the bottom of the thermal insulation panel can be used to prevent Compared with the solution of adding a movable smoke guide plate in the prior art, the function of oil fume guide simplifies the structure of the whole smoke stove integrated machine while satisfying the smoke guide function, and reduces the failure rate during the operation of the smoke stove integrated machine. , which improves the user experience.

But there are the following problems:

1. Since the position of the smoke collecting hood and the cooker will affect the smoking effect, the above-mentioned smoke collecting hood is arranged on the back of the cooker and is arranged in a strip shape, but the volume is relatively large and can only be used for two-eye cookers, and four-eye cookers. Cooktops are not suitable.

2. The smoke collecting hood has only two positions through the lifting structure: the working position extending out of the cabinet and the storage position retracting the cabinet. When the height of the cooker is too high or too low, the smoking effect is not ideal.

3. The filter screen inside the fume collecting hood is a flat design, which is consistent with the cross-sectional size of the fume collecting hood. It is limited by the area of the filter screen, which leads to the poor oil guide of the filter screen, which is blocked by the oil and affects the suction force, making the oil fume filtering effect ineffective. good.

4. The interior of the cabinet is filled with the parts of the hood, the space utilization rate is relatively low, and the installation of the exhaust channel is inconvenient.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a downdraft type smoke stove integrated machine with simple structure, reasonable layout, good smoking effect and convenient operation.

The object of the present invention is achieved in this way:

A downdraft type smoke stove integrated machine, comprising a cabinet;

A cooker, installed above the cabinet, for cooking food;

The hood, installed on the cabinet, is used to absorb and filter the fumes from cooking food,

The hood includes a columnar filter screen cover arranged above the cabinet, a smoking box, a fan and an exhaust channel arranged in the cabinet;

The filter screen cover is arranged in the middle of the cooker, and includes a hollow smoking cover. The top of the smoking cover is provided with a suction port close to the cooker, and the bottom is provided with a column-shaped first filter screen. The inside of the net forms a smoking channel, the first filter screen is arranged in the smoking box and an oil collecting box is arranged at the bottom thereof;

The smoking box is provided with a fan, the air inlet of the fan is connected to the inner cavity of the smoking box, and the air outlet of the fan is connected with an exhaust channel.

Preferably, the air suction port includes several side suction holes opened above the side walls of the fume hood and several upper air suction holes arranged on the top surface of the fume hood.

Preferably, the first filter screen and the smoking hood are both cylindrical; the upper end of the first filter screen is connected to the smoking hood through a filter screen fixing ring, a filter hole is opened in the middle, and an oil collecting box is fixed at the lower end.

Preferably, an activated carbon filter screen is detachably arranged on the channel between the first filter screen and the smoking hood.

Preferably, the activated carbon filter screen includes an upper cover, a lower mesh cover, and an activated carbon sponge disposed between the two, and the upper cover and the lower mesh cover are fixed by a second buckle structure.

Preferably, the second buckle structure includes a second limit convex ring arranged on the upper cover, a second buckle arranged under the second limit convex ring, and a second buckle arranged on the side wall of the lower net cover The second snap ring is snapped into the second snap slot and makes the second limiting convex ring abut against the end of the lower grille; the second limiting convex ring is provided with a third snap groove, so The upper end of the lower mesh cover is provided with a third protrusion, and the third protrusion is clamped in the third clamping groove.

Preferably, the upper end of the smoking hood is detachably provided with a top cover, the top cover is provided with an upper air suction hole, and a handle portion is also provided in the middle.

Preferably, a detachable connection is achieved between the top cover and the smoking hood/between the smoking hood and the filter screen fixing ring/between the filter screen fixing ring and the activated carbon filter screen through a first snap structure;

The first snap structure includes an L-shaped snap groove arranged around one component and a first snap protrusion provided on the other component. The bottom of the L-shaped snap groove is provided with a first limit slot and a first snap protrusion. The bottom of the device is provided with a first limiting protrusion, and the detachable connection of the first buckle structure is realized by rotation.

Preferably, a lift drive device is provided between the smoking box and the filter screen cover through a sliding frame, and the lift drive device includes lift push rods respectively arranged on both sides of the smoking box and lift sliders movably arranged in the lift push rods, The two lifting sliders are respectively connected to the two ends of the sliding frame; one or two of the lifting push rods are provided with a lifting driving assembly for driving the lifting sliding block to move, and the lifting driving assembly includes a driving mechanism arranged on one side of the lifting push rod. A motor and a lead screw arranged inside the lift push rod, the lift slider is sleeved on the lead screw, and the lift drive assembly is controlled by a circuit board.

Preferably, the two lift push rods are respectively driven by a drive motor, and a Hall element is provided at the tail of the drive motor, and the synchronous rotation of the two drive motors is realized by the Hall element and the synchronous control system.

Preferably, the lifting push rod is a hollow rod, one side of the rod is provided with a chute for the lifting slider to pass through, and two sides of the inner cavity of the rod are symmetrically provided with guide grooves; The block includes a slider body that is arranged in the inner cavity of the rod and sleeved on the screw rod. Both sides of the slider body are provided with guide parts that match the shape of the guide groove, and the slider body is also provided with a connecting part. The connecting part is connected to one side of the sliding frame through the chute.

Preferably, the guide groove is surrounded by two grooves and has a small cross-section and a large interior, the guide has a fan-shaped cross-section and a bottom part is provided with abutting parts abutting the grooves. ; The side surfaces of the abutting portion and the guiding portion are perpendicular to each other, and a stress groove is opened at the intersection.

Preferably, the sliding frame is a support plate, the two sides of the support plate are bent and connected to the lifting slider, the middle part of the support plate is provided with a mesh cover installation hole A, and the side wall of the mesh cover installation hole A is provided with Mounting protrusions, the filter screen cover is provided with mounting slots of corresponding shapes, and the two can be detachably mounted.

Preferably, the fan is arranged on one side of the smoking box, and the fan mounting surface is higher than the bottom surface of the smoking box where the filter cover is located, and the fan mounting surface is provided with a fan mounting hole for installing the fan, and the fan mounting hole is connected to the row air channel.

Preferably, the bottom surface of the smoking box where the filter screen cover is located is provided with a liquid collecting hole, and the bottom of the liquid collecting hole is detachably provided with a liquid receiving box.

Preferably, a storage cabinet is provided at the cabinet below the hood, the exhaust passage is composed of a round-turned-square joint, a number of square pipes and a square right-angle joint, and the round-turned-square joint is connected to the circular air outlet of the fan , and the exhaust channel (4) is fixed in the cabinet and arranged around the top, back and bottom of the storage cabinet.

Preferably, the exhaust passage is also arranged at the bottom of the storage cabinet, and the air outlet is arranged at one side of the bottom of the cabinet through a flat elbow joint.

Preferably, the cooker includes a chassis disposed above the cabinet, a plurality of induction cooker modules are disposed on the chassis, and a glass panel is disposed above the induction cooker modules; the chassis in the center of the induction cooker module is also provided with a filter cover for installation Grille mounting hole B.

Compared with the prior art, the present invention has outstanding and beneficial technical effects as follows:

1. The filter screen cover of the present invention is cylindrical, and is arranged in the middle of the cooker. It has the characteristics of small size, convenient installation and good oil fume suction effect; the air suction port is arranged on the side wall and the top surface, which is conducive to smoking. In addition, the column-shaped first filter screen can increase the filtering area by changing the height and improve the filtering effect.

2. The channel between the first filter screen and the smoking hood of the present invention is detachably provided with an activated carbon filter screen, which is beneficial to improve the filtering effect.

3. The filter screen cover of the present invention can be detachably installed through the buckle structure, which is simple and convenient, and is easy to clean and replace parts.

4. According to the height of the cooker, the present invention can manually adjust the height of the filter screen cover through the circuit board to achieve better smoking effect. At the same time, when it is not working, it can be lowered into the smoking box, which is beautiful and neat.

5. The present invention is driven by a drive motor, and realizes the synchronous rotation of the two drive motors through the Hall element and the synchronous control system, which can ensure the position of the filter screen cover and facilitate lifting and lowering. At the same time, the stable synchronous lifting structure can prevent the oil from splashing in the oil collecting box.

6. The connecting structure of the lifting push rod and the lifting slider of the present invention can ensure the stability and accuracy of the lifting and lowering of the two.

7. The exhaust passage designed by the present invention uses square pipes instead of round pipes and is arranged around the storage cabinet, which reduces the installation gap between the storage cabinet and the cabinet, frees up more storage space for the storage cabinet, and greatly Improve the space utilization of the cabinet.

8. In the present invention, the air outlet can be arranged on any side of the bottom of the cabinet through the flat elbow joint at the bottom of the storage cabinet, which is convenient for the layout of the external exhaust passage.

Description of drawings

FIG. 1 is one of the structural schematic diagrams of the integrated smoke stove according to the present invention.

FIG. 2 is the second schematic diagram of the structure of the integrated smoke stove according to the present invention.

FIG. 3 is a schematic structural diagram of the present invention after the cabinet is hidden.

FIG. 4 is a schematic view of the internal structure of the cooktop of the present invention.

FIG. 5 is a schematic structural diagram of the bottom surface of the cooktop of the present invention.

FIG. 6 is a schematic view of the structure of the filter screen cover of the present invention.

Figure 7 is an exploded view of the filter screen cover of the present invention.

Fig. 8 is a sectional view of the filter screen cover of the present invention.

FIG. 9 is a partial enlarged view of the top cover connecting structure at A in FIG. 8 .

FIG. 10 is a partial enlarged view of the connection structure of the oil collecting box at B in FIG. 8 .

FIG. 11 is a partial enlarged view of the connection structure of the filter screen fixing ring at C in FIG. 8 .

Fig. 12 is a schematic diagram of the structure between the smoking box, the filter screen cover and the lift drive device of the present invention.

FIG. 13 is a schematic structural diagram of the lift driving device of the present invention.

Figure 14 is a cross-sectional view of the lift push rod and lift slider of the present invention.

Fig. 15 is an exploded view of the lifting push rod and the lifting slider of the present invention.

FIG. 16 is a reference diagram of the use state of the filter screen cover of the present invention after it is lowered.

Figure 17 is a schematic diagram of the structure between the smoking box, the fan and the exhaust passage of the present invention.

18 is a schematic structural diagram of the exhaust passage after the left side panel of the cabinet is hidden in the present invention.

FIG. 19 is a schematic structural diagram of a second type of exhaust passage of the present invention.

FIG. 20 is a schematic structural diagram of a third exhaust passage of the present invention.

The meaning of the symbols in the figure:

1-filter cover; 2-smoking box; 3-fan; 4-exhaust channel;

11-smoke hood; 12-air suction port; 12a-side suction hole; 12b-upper suction hole; 13-first filter screen; 14-oil collecting box; 141-fixing groove; 142-oil collecting gap; 15- Filter fixing ring; 16-Activated carbon filter; 161-Upper cover; 162-Lower grille; 163-Activated carbon sponge; 164-Second limit convex ring; 165-Second buckle; 166-Second slot; 167-third slot; 168-third protrusion; 17-top cover; 171-hand-held part; 172-L-shaped slot; 173-first snap protrusion; 174-first limit slot; 175- The first limit protrusion; 18-installation slot;

20-slide frame; 21-lifting drive device; 211-installation hole A of grille; 212-installation protrusion;

22-lifting push rod; 221-rod; 222-chute; 223-guide groove; 224-groove; 225-rail; 226-installation part; 227-screw mounting bracket; 23-lifting slider; Slider body; 232-guide part; 233-connection part; 234-abutting part; 235-stress groove; 236-guide bar; 24-circuit board; 25-drive motor; ;28-rubber ring;29-lifting cover;

31-semi-circular fan blade; 32-fan installation hole; 33-liquid collection hole; 34-liquid collection box;

41-round to square joint; 42-square pipe; 43-square right-angle joint; 44-flat elbow joint; 45-square to round joint;

100 - hood;

200-cooker; 201-chassis; 202-induction cooker module; 203-glass panel; 204- grille mounting hole B; 205-radiation vent; 206-control panel; 207-power box;

300-cabinet; 301-storage cabinet.

Detailed ways

Below in conjunction with specific embodiment, the present invention is further described:

As shown in FIG. 1 , a downdraft type smoke-stove integrated machine includes a cabinet body 300 . A cooktop 200 for cooking food and a hood 100 are arranged above the cabinet body 300 . soot.

As shown in FIGS. 2-4 , the cooker 200 includes a chassis 201 disposed above the cabinet 300 . The chassis 201 is provided with a plurality of induction cooker modules 202 , preferably two or four, and above the induction cooker modules 202 are disposed Glass panel 20 . In order to dissipate heat, the side wall and bottom surface of the chassis 201 are provided with a plurality of heat dissipation ports 205 for heat dissipation of the induction cooker module 202 . The middle of the chassis 201 is further provided with a control panel 206 for controlling the cooker 200 and the hood 100 and a power supply box 207 for power supply. In addition, the cooker 200 of this embodiment may also be a gas cooker module.

The hood 100 includes a cylindrical filter cover 1 disposed above the cabinet 300 , a smoking box 2 disposed in the cabinet 300 , a fan 3 and an exhaust channel 4 .

The filter cover 1 passes through the middle of the cooker 200 , that is, the bottom plate 201 in the center of the induction cooker module 202 is provided with a mesh cover installation hole B204 for the filter cover 1 to be installed, and the mesh cover installation hole B204 is provided with the filter cover 1 . , to achieve a full range of smoking left and right.

As shown in FIGS. 6-8 , the filter cover 1 includes a hollow smoking cover 11 . The top of the smoking cover 11 is provided with an air suction port 12 close to the cooktop 200 . There are several side suction holes 12a and several upper suction holes 12b arranged on the top surface of the smoking hood 11. The side suction holes 12a and the upper suction holes 12b are distributed with strip-shaped holes around the circumference, which is convenient for absorbing the oil fume around. In order to increase the strength, a reinforcing rib is provided in the middle of the side suction hole 12a.

The bottom of the smoking hood 11 is provided with a columnar first filter screen 13, the smoking hood 11 and the inside of the first filter screen 13 form a smoking channel, and the first filter screen 13 is arranged in the smoking box 2 and its bottom is arranged There is an oil collection box 14 . Specifically, the upper end of the first filter screen 13 is detachably connected to the smoking hood 11 through the filter screen fixing ring 15 , a filter hole is opened in the middle, and an oil collecting box 14 is fixed at the lower end thereof. As shown in FIG. 10 , the bottom of the oil collecting box 14 is provided with a fixing groove 141 . The fixing groove 141 is fixed with a multi-layer first filter screen 13 that is assembled together, and the filter holes of different first filter screens 13 are staggered. , an oil collection gap 142 is set between the oil collection wall of the oil collection box 14 and the outermost first filter screen 13 to facilitate the collection of oil.

In this embodiment, in order to facilitate installation, the filter screen fixing ring 15, the first filter screen 13 and the oil collecting box 14 are an integral unit, and the integral unit is arranged in the smoking box 2 to keep the oil in the box. , to prevent contamination of other parts.

Preferably, the first filter screen 13 and the smoking hood 11 are both cylindrical, the cylindrical filter screen cover 1 occupies a relatively small area, and, compared with the cross-sectional arrangement of the filter screen, this structure greatly increases the first filter The filtering area of the net 13 also facilitates the vertical oil collection of the oil collecting box 14 . Of course, the first filter screen 13 or the smoking hood 11 can also be designed in a square shape. In another embodiment, the smoking hood 11 is square, and the first filter screen 13 is circular, and is connected to each other by a filter screen fixing ring 15 .

In order to better filter the oil fume, an activated carbon filter 16 is detachably arranged on the channel between the first filter screen 13 and the smoking cover 11, and the activated carbon filter screen 16 includes an upper cover 161, a lower mesh cover 162, and a The activated carbon sponge 163 between the two, the upper mesh cover 161 and the lower mesh cover 162 are fixed by the second buckle 165 structure, which is convenient to assemble and has a stable structure. The structure of the second buckle 165 includes a second limiting convex ring 164 arranged on the upper net cover 161 , a second buckle 165 arranged under the second limiting convex ring 164 , and a second buckle 165 arranged on the side wall of the lower net cover 162 . The second locking groove 166 , the second locking buckle 165 is locked in the second locking groove 166 and makes the second limiting convex ring 164 abut against the end of the lower grill 162 . Preferably, the second limiting convex ring 164 is provided with a third snap groove 167 , the upper end of the lower grill 162 is provided with a third protrusion 168 , and the third protrusion 168 is snapped into the third snap groove 167 Inside.

In order to facilitate the replacement of the activated carbon filter 16, the upper end of the smoking hood 11 is detachably provided with a top cover 17, the top cover 17 is provided with an upper suction hole 12b, and a handle portion 171 is also provided in the middle. At the same time, the top cover 17 can prevent ingredients from falling into the smoking hood 11 .

As shown in Figures 7, 9 and 11, in order to facilitate disassembly, between the top cover 17 and the smoking hood 11/between the smoking hood 11 and the first filter screen 13/between the first filter screen 13 and the activated carbon filter screen 16 The detachable connection is realized through the first snap structure.

The first snap structure includes an L-shaped snap groove 172 arranged around one component and a first snap protrusion 173 provided on the other component. The bottom of the snap protrusion 173 is provided with a first limit protrusion 175, and the first snap structure can be detachably connected by rotation. The structure is easy to disassemble, and the assembly is stable and reliable.

In this embodiment, the top cover 17 is provided with an L-shaped snap groove 172 , and the upper end of the smoking hood 11 is provided with a correspondingly shaped first snap protrusion 173 . The first filter screen 13 is connected to other structures through the filter screen fixing ring 15, that is, the inner wall of the filter screen fixing ring 15 is provided with two rows of first snap protrusions which are respectively connected to the smoking hood 11 and the activated carbon filter screen 16. 173, the bottom of the smoking hood 11 and the activated carbon filter 16 are correspondingly provided with L-shaped card slots 172.

In addition, the outer side wall is also provided with a mounting slot 18 for mounting the filter cover 1 .

Due to the different heights of the cooking utensils, the height distance between the air suction port 12 and the cooking utensils directly affects the smoking effect. Therefore, in this embodiment, the filter screen cover 1 is set to be of a lifting type. The specific structure is as follows:

As shown in FIGS. 12-13 , a lift drive device 21 is provided between the smoking box 2 and the filter screen cover 1 through a sliding frame 20 . The sliding frame 20 is a support plate, the two sides of the support plate are bent and connected to the lifting slider 23, the middle of the support plate is provided with a mesh cover mounting hole A211, and the side wall of the mesh cover mounting hole A211 is provided with a mounting hole A211. Protrusions 212, the filter screen cover 1 is provided with a correspondingly shaped installation slot 18, and the two can be detachably installed. Preferably, the installation slot 18 is provided on the outer periphery of the filter screen fixing ring 15 .

As shown in FIG. 16 , the height of the smoking box 2 is greater than the height of the filter screen cover 1, that is, after the filter screen cover 1 is lowered, the filter screen cover 1 can be completely sunk into the smoking box 2, so that the upper surface of the smoking box 2 is close to the height of the cooker 200. Flush surface.

The lift drive device 21 includes lift push rods 22 disposed on both sides of the smoking box 2 respectively, and lift slide blocks 23 movably arranged in the lift push rod 22 .

One or two of the lift push rods 22 are provided with a lift drive assembly that drives the lift slider 23 to move, and the lift drive assembly is controlled by the circuit board 24 . The lift drive assembly includes a drive motor 25 arranged on one side of the lift push rod 22 and a screw rod 26 arranged inside the lift push rod 22. Both ends of the rod member 221 are provided with screw rod mounting brackets 227. 26 is rotatably arranged between the screw mounting frames 227 , and the main shaft of the driving motor 25 is also arranged in one of the screw mounting frames 227 and engages with the screw rod 26 . The lifting slider 23 is sleeved on the screw rod 26 and moves through the rotation of the screw rod 26 .

In this embodiment, the two lift push rods 22 are driven by the driving motor 25 respectively, and the rear of the driving motor 25 is provided with a Hall element 27 , and the two driving motors 25 are synchronously rotated through the Hall element 27 and the synchronous control system. .

In another embodiment, the lift push rods are all provided with screw rods, and when the lift drive device has only one drive motor, the synchronism of the lift sliders 23 on both sides can be ensured by the synchronizing wheel, that is, the bottom of the two screw rods 26 Synchronous wheels are respectively provided, and a synchronous belt is arranged between the synchronous wheels, and the synchronous lifting and lowering of the lifting slider 23 is realized through the synchronous belt.

In order to utilize the height space of the chassis 201 , the top of the smoking box 2 is arranged in the chassis 201 , so that the top surface is arranged in the upper surface of the chassis 201 .

As shown in FIGS. 14-15 , the lift push rod 22 is a hollow rod member 221 . One side of the rod member 221 is provided with a chute 222 for the lift slider 23 to pass through. Correspondingly, notches are provided. The rods 221 on both sides of the chute 222 are extended with mounting parts 226 , and the mounting parts 226 are fixed at the notches of the smoking box 2 by fasteners. Guide grooves 223 are symmetrically arranged on both sides of the inner cavity of the rod member 221 . The guide grooves 223 are surrounded by two groove bars 224 and have a small cross section and a large interior. The lifting slider 23 includes a slider body 231 disposed in the inner cavity of the rod member 221 . The slider body 231 is provided with threaded holes and is sleeved on the screw rod 26 . Both sides of the slider body 231 are provided with guide portions 232 that match the shape of the guide grooves 223 . The cross-section of the guide portions 232 is fan-shaped and is provided with abutting grooves 224 at the bottom. The side surfaces of the abutting portion 234 and the guide portion 232 are perpendicular to each other, and a stress groove 235 is opened at the intersection to prevent the surface from being scratched. The slider body 231 is also provided with a connecting portion 233 , and the connecting portion 233 is connected to one side of the sliding frame 20 through the sliding groove 222 .

Preferably, a guide bar 236 is provided on one side of the main body of the slider body 231 opposite to the connecting portion 233, and a corresponding guide rail 225 is provided in the inner cavity of the rod 221. The guide bar 236 and the guide rail 225 abut each other, and can Prevents the inner end from tilting and slipping smoothly.

In order to protect the lift drive device, a lift cover 29 is installed on its outer side; in order to facilitate the wiring of the lift drive devices on both sides, a wiring hole for wiring installation is provided inside the smoking box 2 inside the lift cover 29, and a rubber ring is arranged in the wiring hole 28. The middle part of the rubber ring 28 is provided with a mesh sheet, which can prevent the oil from splashing out.

As shown in FIGS. 17-18 , in this embodiment, the fan 3 is an energy-efficient fan with front and rear double-sided air intake, and is arranged on one side of the smoking box 2 , and the first filter screen 13 is arranged side by side on the fan 3 On the side, the rapid absorption, filtration and discharge of oil fume is realized through double-sided air intake. As shown in FIG. 5 , the fan mounting surface is provided with a fan mounting hole 32 for mounting the fan 3 , and the fan mounting hole 32 is connected to the exhaust passage 4 . The fan installation surface is higher than the bottom surface of the smoking box 2 where the filter screen cover 1 is located, which can prevent the oil from flowing out of the fan installation hole 32 .

In order to prevent water from entering the smoking box 2 through the smoking hood, a liquid collecting hole 33 is provided on the bottom surface of the smoking box 2 where the filter cover 1 is located, and a liquid receiving box 34 is detachably provided at the bottom of the liquid collecting hole 33 .

Preferably, two semicircular fan blades 31 are also rotatably arranged at the fan installation hole 32, and the fan blades seal the exhaust passage 4 through the reset piece. When the fan 3 works, the wind force will overcome the elastic force of the reset piece to open the fan blade, Small animals such as cockroaches and mice can be prevented from climbing into the smoking box through the exhaust passage 4 .

A storage cabinet 301 is provided at the cabinet body 300 below the hood 100 , and the exhaust passage 4 is composed of a rounded-square joint 41 connected to the fan installation hole 32 , a plurality of square pipes 42 and a square right-angle joint 43 . and arranged on the top, back and bottom of the storage cabinet 301 . The exhaust passage designed by the invention uses square pipes instead of round pipes and is arranged around the storage cabinet, reduces the size of the installation gap between the storage cabinet and the cabinet body, frees up more storage space for the storage cabinet, and greatly improves the The space utilization rate of the cabinet is improved. In addition, the exhaust passage 4 of the embodiment may be a hard metal pipe or a plastic pipe, or a hose.

Preferably, the exhaust channel 4 is also arranged at the bottom of the storage cabinet 301 , and the air outlet is arranged on the bottom side of the cabinet body 300 through the flat elbow joint 44 . As shown in FIG. 4 , in this embodiment, the air outlet of the exhaust passage 4 is arranged on the front side of the cabinet body 300 ; as shown in FIG. 19 , it is an embodiment in which the air outlet is arranged on the left side of the cabinet body 300 ; As shown, it is an embodiment in which the air outlet is arranged on the right side of the cabinet body 300 .

The above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore: all equivalent changes made according to the structure, shape and principle of the present invention shall be covered by the protection of the present invention. within the range.

Claims (18)

1. A downdraft smoke and cooking stove all-in-one machine comprises a cabinet body (300);

the cooking range (200) is arranged above the cabinet body (300) and is used for cooking food;

the cigarette machine (100), install on cabinet body (300), be used for absorbing and filtering the oil smoke that the culinary art food produced, its characterized in that:

the range hood (100) comprises a columnar filter screen (1) arranged above the cabinet body (300), a smoking box (2) arranged in the cabinet body (300), a fan (3) and an exhaust passage (4);

the filter screen cover (1) is arranged in the middle of the stove (200) and comprises a hollow smoke suction hood (11), the top of the smoke suction hood (11) is provided with an air suction opening (12) close to the stove (200), the bottom of the smoke suction hood is provided with a columnar first filter screen (13), a smoke suction channel is formed inside the smoke suction hood (11) and the first filter screen (13), the first filter screen (13) is arranged in the smoke suction box (2), and the bottom of the first filter screen is provided with an oil collecting box (14);

the smoke suction box (2) is provided with a fan (3), the air inlet of the fan (3) is communicated with the inner cavity of the smoke suction box (2), and the air outlet of the fan (3) is connected with an exhaust passage (4).

2. The downdraft cooking range all-in-one machine according to claim 1, wherein: the air suction opening (12) comprises a plurality of side air suction holes (12a) arranged above the side wall of the fume suction hood (11) and a plurality of upper air suction holes (12b) arranged on the top surface of the fume suction hood (11).

3. The downdraft cooking range all-in-one machine according to claim 1, wherein: the first filter screen (13) and the smoke suction hood (11) are both cylindrical; the upper end of the first filter screen (13) is connected with the smoke absorbing hood (11) through a filter screen fixing ring (15), the middle part of the first filter screen is provided with a filter hole, and the lower end of the first filter screen is fixed with an oil collecting box (14).

4. A downdraft cooking hob according to any one of the claims 1 to 3, wherein: an active carbon filter screen (16) is detachably arranged on a channel between the first filter screen (13) and the smoke suction hood (11).

5. The downdraft cooking range all-in-one machine according to claim 4, wherein: the activated carbon filter screen (16) comprises an upper screen cover (161), a lower screen cover (162) and activated carbon sponge (163) arranged between the upper screen cover and the lower screen cover, wherein the upper screen cover (161) and the lower screen cover (162) are structurally fixed through a second buckle (165).

6. The downdraft cooking range all-in-one machine according to claim 5, wherein: the second buckle (165) structure comprises a second limiting convex ring (164) arranged on the upper mesh enclosure (161), a second buckle (165) arranged below the second limiting convex ring (164), and a second clamping groove (166) arranged on the side wall of the lower mesh enclosure (162), and the second buckle (165) is clamped in the second clamping groove (166) to enable the second limiting convex ring (164) to be abutted against the end part of the lower mesh enclosure (162); a third clamping groove (167) is formed in the second limiting convex ring (164), a third protrusion (168) is arranged at the upper end of the lower mesh enclosure (162), and the third protrusion (168) is clamped in the third clamping groove (167).

7. The downdraft cooking range all-in-one machine according to claim 6, wherein: the upper end of the smoke suction hood (11) is detachably provided with a top cover (17), the top cover (17) is provided with an upper air suction hole (12b), and the middle part of the top cover is also provided with a handheld part (171).

8. The downdraft cooking range all-in-one machine according to claim 7, wherein: the detachable connection between the top cover (17) and the smoke absorption hood (11), between the smoke absorption hood (11) and the first filter screen (13), between the first filter screen (13) and the activated carbon filter screen (16) is realized through a first buckle structure;

the first buckle structure comprises an L-shaped clamping groove (172) arranged on the periphery of one part and a first buckle protrusion (173) arranged on the other part, a first limiting groove (174) is formed in the bottom of the L-shaped clamping groove (172), a first limiting protrusion (175) is arranged at the bottom of the first buckle protrusion (173), and the first buckle structure can be detachably connected through rotation.

9. The downdraft cooking range all-in-one machine according to claim 1, wherein: a lifting driving device (21) is arranged between the smoking box (2) and the filter screen (1) through a sliding frame (20), the lifting driving device (21) comprises lifting push rods (22) respectively arranged at two sides of the smoking box (2) and lifting slide blocks (23) movably arranged in the lifting push rods (22), and the two lifting slide blocks (23) are respectively connected with two ends of the sliding frame (20);

one or two lifting push rods (22) are internally provided with a lifting driving assembly for driving the lifting slide block (23) to move, the lifting driving assembly comprises a driving motor (25) arranged on one side of the lifting push rods (22) and a screw rod (26) arranged inside the lifting push rods (22), the lifting slide block (23) is sleeved on the screw rod (26), and the lifting driving assembly is controlled by a circuit board (24).

10. The downdraft cooking range all-in-one machine according to claim 9, wherein: the two lifting push rods (22) are driven by the driving motors (25) respectively, the tail parts of the driving motors (25) are provided with Hall elements (27), and the two driving motors (25) synchronously rotate through the Hall elements (27) and a synchronous control system.

11. The downdraft cooking range all-in-one machine according to claim 9, wherein: the lifting push rod (22) is a hollow rod piece (221), one side of the rod piece (221) is provided with a sliding groove (222) for the lifting slide block (23) to pass through, and guide grooves (223) are symmetrically arranged on two sides of the inner cavity of the rod piece (221); the lifting slide block (23) comprises a slide block main body (231) which is arranged in an inner cavity of the rod piece (221) and sleeved on the screw rod (26), guide parts (232) matched with the guide grooves (223) in shape are arranged on two sides of the slide block main body (231), a connecting part (233) is further arranged on the slide block main body (231), and the connecting part (233) penetrates through the sliding groove (222) to be connected to one side of the sliding frame (20).

12. The downdraft cooking range all-in-one machine according to claim 11, wherein: the guide groove (223) is formed by two groove bars (224) in an enclosing mode, the cross section of the guide part (232) is small in opening and large in inside, the cross section of the guide part is in a fan shape matched with the guide part, and the bottom of the guide part is provided with an abutting part (234) abutting against the groove bars (224); the abutting part (234) is perpendicular to the side surface of the guide part (232), and a stress groove (235) is formed in the intersection position.

13. The downdraft cooking range all-in-one machine according to claim 9, wherein: carriage (20) are a backup pad, connect after the both sides bending of backup pad lifting slide (23), screen panel mounting hole A (211) has been seted up at the middle part of backup pad, and the lateral wall of screen panel mounting hole A (211) is provided with installation arch (212), be provided with installation draw-in groove (18) that correspond the shape on filtering screen panel (1), both demountable installation.

14. The downdraft cooking range all-in-one machine according to claim 1, wherein: the fan (3) is arranged on one side in the smoke suction box (2), the fan mounting surface is higher than the bottom surface of the smoke suction box (2) where the filter screen cover (1) is located, a fan mounting hole (32) for mounting the fan (3) is formed in the fan mounting surface, and the fan mounting hole (32) is connected with the exhaust channel (4).

15. The downdraft cooking range all-in-one machine according to claim 14, wherein: the bottom surface of the smoking box (2) where the filter screen (1) is arranged is provided with a liquid collecting hole (33), and the bottom of the water collecting hole (33) is detachably provided with a liquid receiving box (34).

16. The downdraft cooking range all-in-one machine according to claim 1, wherein: the cabinet body (300) below the cigarette machine (100) is provided with a storage cabinet (301), the exhaust channel (4) is composed of a round-square connector (41), a plurality of square pipes (42) and a square right-angle connector (43), the round-square connector (41) is connected with a round air outlet of the fan (3), and the exhaust channel (4) is fixed in the cabinet body (300) and arranged around the upper part, the back part and the lower part of the storage cabinet (301).

17. The downdraft cooking range all-in-one machine according to claim 16, wherein: the exhaust passage (4) is also arranged at the bottom of the storage cabinet (301), and the air outlet is arranged at one side of the bottom of the cabinet body (300) through the plane elbow joint (44).

18. The downdraft cooking range all-in-one machine according to claim 1, wherein: the kitchen range (200) comprises a chassis (201) arranged above a cabinet body (300), a plurality of induction cooker modules (202) are arranged on the chassis (201), and a glass panel (203) is arranged above the induction cooker modules (202); and a mesh enclosure mounting hole B (204) for mounting a filter mesh enclosure (1) is also formed in the chassis (201) at the center of the induction cooker module (202).

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