CN110567011A - Device with smoke collecting hood - Google Patents

Abstract

The invention relates to the technical field of kitchen appliances, in particular to a device with a smoke collecting hood. The device with a smoke collection hood provided by the present invention includes a body, and also includes a smoke collection hood, which is movably connected with the body; an anti-collision device, which is connected with the smoke collection hood, and is suitable for When the body touches an obstacle during the movement, it sends out a stop signal; the controller is electrically connected to the anti-collision device, and is adapted to control the smoke collector when receiving the stop signal from the anti-collision device. The hood stops moving. By setting the anti-collision device connected with the smoke collection hood, when the smoke collection hood touches an obstacle during the movement, the anti-collision device can send a stop signal, and the controller will control the smoke collection hood to stop moving in time after receiving the stop signal. Thereby preventing damage to obstacles while reducing safety hazards of the fume hood.

Description

Devices with fume hoods

technical field

The invention relates to the technical field of kitchen appliances, in particular to a device with a smoke collecting hood.

Background technique

The integrated stove is a kitchen appliance that integrates multiple functions such as a range hood, a gas stove, a disinfection cabinet, and a storage cabinet. It is also called an environmental protection stove or an integrated environmental protection stove in the industry. Low consumption and environmental protection and other advantages.

An integrated cooker is disclosed in the prior art, which sets the smoke collecting hood in the range hood as a lifting type, which can be raised up when it needs to be used, and can be lowered into the frame to hide it when not in use. , making the overall layout of the kitchen more compact and beautiful, but the integrated stove with this structure will continue to rise or fall if there are obstacles (such as other objects or human hands) during the rising or falling of the smoke collecting hood , causing obstacles to be damaged, or causing the smoke hood to be hit by obstacles and other potential safety hazards.

Contents of the invention

Therefore, the technical problem to be solved by the present invention is to overcome defects such as obstacle damage and potential safety hazards in the prior art if an obstacle is encountered during the raising and lowering of the fume collecting hood, so as to provide a smoke collecting hood relative to the body. If encountering an obstacle during exercise, it is not easy to cause damage to the obstacle and reduce potential safety hazards. It is a device with a smoke collecting hood.

A device with a fume collecting hood, including a body, and further comprising:

A fume collecting hood is movably connected with the body;

An anti-collision device, connected to the fume collecting hood, is adapted to send a stop signal when the fume collecting hood touches an obstacle during its movement relative to the body;

The controller is electrically connected to the anti-collision device, and is adapted to control the fume collecting hood to stop moving when receiving a stop signal from the anti-collision device.

It also includes a driving device connected with the fume collecting hood, the driving device is suitable for driving the fume collecting hood to move relative to the body; the controller is electrically connected with the driving device, and is suitable for receiving When the stop signal is sent by the anti-collision device, the driving device is controlled to stop driving the fume collecting hood.

The anti-collision device includes:

A biasing member, one end is connected to the smoke collecting hood, and the other end is connected to the driving device;

The triggering device is suitable for sending out a stop signal when the fume collecting hood touches an obstacle during the movement relative to the body.

A guide piece is also included inside the biasing piece.

The triggering device includes:

pick piece, set on one of the two of the fume collecting hood and the driving device;

At least one micro switch is arranged on the other of the fume collecting hood and the driving device, and when the paddle is in contact with the micro switch, the trigger device sends a stop signal.

The trigger device includes two micro switches arranged at intervals, and the paddle is located between the two micro switches.

A fixing seat is provided on the smoke collecting hood, and the micro switch is arranged on the fixing seat.

The trigger device includes two displacement sensors, which are arranged on one of the fume collecting hood and the driving device, one of the displacement sensors is initially in a normally open state, and the other is initially in a normally open state. closed state.

A support is provided on the driving device, and the displacement sensor is provided on the support.

The drive unit includes:

powerplant;

The transmission mechanism is connected with the power device and the biasing member, and is adapted to drive the biasing member and the smoke collecting hood to move under the drive of the power device.

The power device is a push rod motor.

The biasing member is a spring.

The fume collecting hood moves up and down along the body.

The body is provided with a limiting cavity, and the smoke collecting hood is arranged in the limiting cavity;

A first flange extends outward from the top of the limiting chamber, and a second flange extends outward from the top of the smoke collecting hood. When the first flange contacts the second flange, the The fume collecting hood moves to the lower limit position.

Guide rails or bumps are provided in the limiting cavity, and bumps or guide rails that cooperate with the guide rails or bumps are arranged on the smoke collecting hood.

The top of the guide rail is provided with a closed end, and when the protrusion moves to the closed end, the smoke collecting hood moves to the upper limit position.

The device with the fume collecting hood is an integrated stove.

The technical solution of the present invention has the following advantages:

1. The device provided by the present invention has a smoke collection hood, which includes a body, and also includes a smoke collection hood, which is movably connected with the body; an anti-collision device, which is connected with the smoke collection hood, and is suitable for use in the smoke collection hood. When the body touches an obstacle during movement, a stop signal is sent; the controller is electrically connected to the anti-collision device, and is adapted to control the The fume hood stops moving. By setting the anti-collision device connected with the smoke collection hood, when the smoke collection hood touches an obstacle during the movement, the anti-collision device can send a stop signal, and the controller will control the smoke collection hood to stop moving in time after receiving the stop signal. Thereby preventing damage to obstacles while reducing safety hazards of the fume hood.

2. The device with the fume collecting hood provided by the present invention further comprises a driving device connected with the fume collecting hood, and the driving device is suitable for driving the moving of the fume collecting hood relative to the body; the controller and The driving device is electrically connected and adapted to control the driving device to stop driving the smoke collecting hood when receiving a stop signal from the anti-collision device. By setting the driving device to drive the fume collecting hood to move relative to the body, and electrically connecting with the controller, when encountering obstacles during the movement of the fume collecting hood, the controller can automatically control the driving device to drive the fume collecting hood to stop moving, so that the fume collecting The stop of the cover is more timely, which improves the intelligence of the device.

3. The device with the smoke collecting hood provided by the present invention, the anti-collision device includes: a biasing member, one end is connected with the smoke collecting hood, and the other end is connected with the driving device; When the fume collecting hood touches an obstacle during movement relative to the body, a stop signal is sent. The anti-collision device is configured to include a biasing member and a triggering device, so that when the smoke collecting hood moves relative to the body, when an obstacle is encountered, the driving device can drive the biasing member to continue moving, such as making the biasing member continue to compress or When the stretching continues, the biasing force of the biasing member will trigger with the trigger device to send a stop signal, so that the controller can control the smoke collecting hood to stop moving in time.

4. The device provided with the fume collecting hood provided by the present invention further includes a guide piece disposed inside the biasing piece. By arranging the guide member inside the biasing member, the biasing member can better guide the biasing member during movement, preventing the biasing member from shifting during movement.

5. The device with a smoke collecting hood provided by the present invention, the triggering device includes: a paddle set on one of the smoke collecting hood and the driving device; at least one micro switch set on the On the other one of the fume collecting hood and the driving device, when the plectrum is in contact with the micro switch, the triggering device sends a stop signal. By setting the plectrum on the driving device (or the fume collecting hood), at least one micro switch is set on the fume collecting hood (or the driving device), so that when the fume collecting hood moves in at least one direction, it can move in this direction when encountering When reaching an obstacle, the fume collecting hood stops moving, and the driving device can continue to move with the biasing member, so that the plectrum is in contact with the micro switch, and then a stop signal is sent out. The trigger method is relatively simple.

6. In the device with a smoke collecting hood provided by the present invention, the triggering device includes two microswitches arranged at intervals, and the paddle is located between the two microswitches. The trigger device includes two micro-switches arranged at intervals, so that when the smoke collection hood moves in two different directions and encounters obstacles, the paddles can all contact with the micro-switches, ensuring that the smoke collection hood moves in different directions reliability.

7. In the device provided by the present invention with a smoke collecting hood, the body is provided with a limiting cavity, and the limiting cavity is provided with the smoke collecting hood; the top of the limiting cavity extends outwards with a first protrusion. There is a second flange extending outward from the top of the fume collecting hood, and when the first flange contacts the second flange, the fume collecting hood moves to a lower limit position. By setting a limiting cavity in the body, the smoke collecting hood can move up and down in the limiting cavity, a first flange is set on the top of the limiting cavity, and a second flange is set on the top of the smoke collecting hood. When the edge is in contact with the second flange, the fume collecting hood moves to the lower limit position. At this time, the fume collecting hood can be completely in the limiting cavity, which makes the overall appearance of the device more beautiful and increases the use space of the device surface.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the specific embodiments or prior art. Obviously, the accompanying drawings in the following description The drawings show some implementations of the present invention, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the structural representation of smoke collecting hood and body of the present invention;

Fig. 2 is a partial enlarged view of the fume collecting hood and the body of the present invention;

Fig. 3 is the structural representation of push rod motor of the present invention;

Fig. 4 is a schematic structural view of another mode of the smoke collecting hood and the body of the present invention;

Fig. 5 is a schematic structural view of the side of the fume collecting hood and the body of the present invention;

Fig. 6 is an enlarged view of part A in Fig. 5;

Fig. 7 is a structural schematic diagram of another trigger device of the smoke collecting hood and the body of the present invention;

Fig. 8 is an enlarged view of part B in Fig. 7;

Fig. 9 is an exploded view of another trigger device of the smoke collecting hood and the body of the present invention;

Fig. 10 is a schematic structural view of the integrated cooker of the present invention.

Explanation of reference signs:

1-body; 2-fume collecting hood; 3-spring; 4-cooker; 5-paddle; 6-micro switch; 7-fixing seat; 8-displacement sensor; 9-support; 10-push rod motor; 11-slider; 12-limiting cavity; 13-first flange; 14-second flange; 15-guide rail; 16-bump; 17-closed end; 18-push rod; 19-motor body; 20 -screw; 21-guide column; 22-screw; 23-give way hole; 24-motor.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as there is no conflict with each other.

As shown in Figures 1-10, this embodiment provides a device with a smoke collection hood, including a body 1, a smoke collection hood 2, an anti-collision device and a controller.

The fume collecting hood 2 is movably connected with the body 1; the anti-collision device is connected with the fume collecting hood 2, and is suitable for sending a stop signal when the fume collecting hood 2 touches an obstacle during movement relative to the body 1; the controller and the anti-collision The device is electrically connected, and is suitable for controlling the fume collecting hood 2 to stop moving when receiving the stop signal sent by the anti-collision device.

By setting the anti-collision device connected to the smoke collection hood 2, when the smoke collection hood 2 touches an obstacle during the movement, the anti-collision device can send a stop signal, and the controller will control the smoke collection hood 2 in time after receiving the stop signal. Stop the movement, thereby preventing damage to obstacles, while reducing the safety hazard of the fume collecting hood 2 .

The device with the fume collecting hood in this embodiment also includes a driving device, which is connected with the fume collecting hood 2, and the driving device is suitable for driving the fume collecting hood 2 to move relative to the body 1; the controller is electrically connected with the driving device, and is suitable for When receiving the stop signal sent by the anti-collision device, the control driving device stops driving the smoke collecting hood 2 to move. By setting the driving device to drive the fume collecting hood 2 to move relative to the body 1, and electrically connecting with the controller, so that when the fume collecting hood 2 encounters an obstacle during the movement, the controller can automatically control the driving device to drive the fume collecting hood 2 to stop moving , so that the stop of the smoke collecting hood 2 is more timely, and the intelligence of the device is improved.

As a convertible embodiment, it is also possible to not include a driving device, and the people manually drive the fume collecting hood 2 to move relative to the body 1, and the controller sends an alarm signal (such as voice or light) when receiving a stop signal from the anti-collision device. Or the combination of the two, etc.), and then people manually control the fume collecting hood 2 to stop moving.

The biasing member in this embodiment is a spring 3 . As an alternative embodiment, it is also possible that the biasing member is a biasing member of other forms.

The anti-collision device in this embodiment includes: a spring 3, one end of which is connected to the smoke collecting hood 2, and the other end is connected to the driving device; , to issue a stop signal. The anti-collision device is set to include a spring 3 and a trigger device, so that when the smoke collecting hood 2 moves relative to the body 1, when an obstacle is encountered, the driving device can drive the spring 3 to continue to move, such as to make the spring 3 continue to compress or continue to move. When stretched, the bias force of the spring 3 will be triggered with the trigger device to send a stop signal, so that the controller can control the smoke collecting hood 2 to stop moving in time.

Specifically, as shown in Figures 1-6, the trigger device in this embodiment includes a paddle 5, which is arranged on the driving device; at least one micro switch 6, which is arranged on the smoke collection When the micro switch 6 is in contact, the trigger device sends a stop signal. By setting the paddle 5 on the driving device, at least one micro switch 6 is set on the smoke collecting hood 2, so that when the smoke collecting hood 2 moves in at least one direction, when the movement in this direction encounters an obstacle, the smoke collecting The cover 2 stops moving, and the driving device can continue to move with the spring 3, so that the plectrum 5 contacts the micro switch 6, and then sends a stop signal, and the triggering method is relatively simple. As a changeable embodiment, it is also possible that the plectrum 5 is arranged on the smoke collecting hood 2, and the micro switch 6 is arranged on the driving device.

In order to improve the reliability of the movement of the fume collecting hood 2 , the trigger device in this embodiment includes two microswitches 6 arranged at intervals, and the paddle 5 is located between the two microswitches 6 . The trigger device includes two microswitches 6 arranged at intervals, so that when the smoke collection hood 2 moves in two different directions and encounters obstacles, the plectrum 5 can all contact the microswitches 6, ensuring that the smoke collection hood 2 Reliability of movement in different directions.

The smoke collecting hood 2 in this embodiment is provided with a fixing seat 7, the micro switch 6 is arranged on the fixing seat 7, and the spring 3 is connected with the smoke collecting hood 2 by connecting with the fixing seat 7.

As shown in Figures 7-9, another form of trigger device is provided in this embodiment. The trigger device includes two displacement sensors 8, which are arranged on the driving device, and one of the displacement sensors 8 is initially in a normally open state. The other displacement sensor 8 is initially in a normally closed state. Specifically, the driving device is provided with a supporting member 9, the displacement sensor 8 is arranged on the supporting member 9, and the spring 3 is connected with the driving device through the supporting member 9. When the smoke collecting hood 2 encounters an obstacle during the movement, the spring 3 continues to stretch, so that the two displacement sensors 8 are both open (that is, when the smoke collecting hood 2 and the displacement sensor 8 are out of contact), the controller controls the smoke collecting The cover 2 stops moving; the spring 3 continues to compress, so that both displacement sensors 8 are closed (that is, when the smoke collecting hood 2 is in contact with the displacement sensor 8), the controller controls the smoke collecting hood 2 to stop moving. As an alternative embodiment, it is also possible that the displacement sensor 8 is arranged on the fume collecting hood 2 .

The device with the fume collecting hood in this embodiment is not provided with guides. As a changeable embodiment, it is also possible that the device with the fume collecting hood also includes a guide piece, which is arranged inside the spring 3. Specifically, the guide piece in this embodiment includes a guide column 21, which is arranged inside the spring 3. The guide column 21 is fixed on the driving device by a guide screw 22 . By arranging the guide member inside the spring 3, the spring 3 can better guide the spring 3 during the movement, and prevent the spring 3 from being offset during the movement.

The driving device in this embodiment includes: a power device; a transmission mechanism, connected with the power device and the spring 3, suitable for driving the spring 3 and the smoke collecting hood 2 to move under the drive of the power device. Specifically, as shown in Figure 3, the power unit in the present embodiment is a push rod motor 10, including a motor body 19 and a push rod 18, and the transmission mechanism includes a slider 11, which is movably connected to the push rod 18, and on the motor body 19 Driven by it, the slider 11 reciprocates on the push rod 18. As an alternative embodiment, it is also possible that, as shown in FIG. 9 , the power device is a motor 24 , and the transmission structure includes a slider 11 and a screw 20 .

Specifically, as shown in Figures 1-3, the slider 11 in this embodiment is arranged under the fixed seat 7, one end of the spring 3 is connected to the slider 11, and the other end is connected to the top of the fixed seat 7, and the fixed seat 7 The top of the top is fixedly connected with the bottom of the fume collecting hood 2. As a convertible embodiment, it is also possible that, as shown in Figure 4, the fixed seat 7 is arranged on the smoke collecting hood 2, and the fixed seat 7 is provided with a relief hole 23, and one end of the spring 3 is connected with a slide block 11, and another One end is connected to the bottom of the smoke collecting hood 2, and the slide block 11, driven by the push rod motor 10, can pass through the relief hole 23 on the holder 7 to drive the spring 3 and then drive the smoke collecting hood 2 to move up and down.

The fume collecting hood 2 in this embodiment moves up and down along the body 1 . Specifically, as shown in Fig. 5 and Fig. 6, a limiting cavity 12 is provided on the body 1 in this embodiment, a smoke collecting hood 2 is arranged in the limiting cavity 12, a guide rail 15 is arranged in the limiting cavity 12, and the smoke collecting The cover 2 is provided with a protrusion 16 that cooperates with the guide rail 15 , so that the smoke collecting cover 2 moves up and down relative to the body 1 in the limiting cavity 12 . When the fume collecting hood 2 is not in use, the top of the limiting cavity 12 extends outwards with a first flange 13, and the top of the fume collecting hood 2 extends outwards with a second flange 14. Between the first flange 13 and the second When the flanges 14 are in contact, the fume collecting hood 2 moves to the lower limit position. By setting the first flange 13 on the top of the limiting cavity 12 and the second flange 14 on the top of the fume collecting hood 2, when the first flange 13 contacts the second flange 14, the fume collecting hood 2 moves to the bottom. At the extreme position, the smoke collecting hood 2 can be completely in the limiting cavity 12 at this time, so that the overall appearance of the device is more beautiful, and the use space on the surface of the device is increased; when the smoke collecting hood 2 needs to be used, the top of the guide rail 15 is set There is a closed end 17, and when the protrusion 16 moves to the closed end 17, the smoke collecting hood 2 moves to the upper limit position. As an alternative embodiment, it is also possible that a protrusion 16 is arranged in the limiting cavity 12 and a guide rail 15 is arranged on the fume collecting hood 2 .

As shown in FIG. 10 , the device with a smoke collection hood in this embodiment is an integrated cooker, including a cooker 4 , a body 1 and a smoke collection hood 2 . As an alternative embodiment, it is also possible that the device with the fume collecting hood is another collection of fume collecting hoods, and the fume collecting hood 2 can move up and down relative to the body 1 .

When the integrated cooker does not need to work, the smoke collecting hood 2 moves downward relative to the body 1, and the spring 3 is in a semi-compressed state during the descent, and the paddle 5 on the slider 11 is between the two micro switches 6 at this time , the elastic force of the spring 3 is equal to the gravity of the smoke hood 2, the push rod motor 10 drives the slider 11 to drive the spring 3, and then drives the smoke hood 2 to move downward, when an obstacle is encountered, the obstacle hinders the smoke hood 2 Moving down, the push rod motor 10 drives the slider 11 to drive the spring 3 to continue to move down. When the plectrum 5 on the slider 11 touches the lower micro switch 6, a stop signal is sent, and the controller controls the push rod motor 10 to stop moving, and then Make the fume collecting hood 2 stop moving; when the fume collecting hood 2 is required to work, the fume collecting hood 2 moves upward relative to the body 1, and during the rising process, the spring 3 is in a semi-compressed state, and the plectrum 5 on the slider 11 is at this time Between the two micro switches 6, the elastic force of the spring 3 is equal to the gravity of the smoke collecting hood 2, and the push rod motor 10 drives the slider 11 to drive the spring 3, and then drives the smoke collecting hood 2 to move upwards. When an obstacle is encountered, Obstacles hinder the upward movement of the smoke collection hood 2, and the push rod motor 10 drives the slider 11 to drive the spring 3 to continue to move upward. When the paddle 5 on the slider 11 touches the upper micro switch 6, a stop signal is sent, and the controller controls the push The rod motor 10 stops moving, and then makes the fume collecting hood 2 stop moving, prevents damage to obstacles, and also prevents the fume collecting hood 2 from being damaged by obstacles.

For another type of trigger device, when the fume collecting hood 2 moves downward relative to the body 1, the spring 3 is in a semi-compressed state, and the elastic force of the spring 3 is equal to the gravity of the fume collecting hood 2. At this time, the displacement sensor 8 on the support plate , one of the displacement sensors 8 is initially in a normally open state (that is, the top of the displacement sensor 8 is separated from the smoke collection hood 2), and the other displacement sensor 8 is initially in a normally closed state (that is, the top of the displacement sensor 8 is in contact with the smoke collection hood 2). is in contact state), the motor 24 drives the slider 11 to move up and down on the screw rod 20, the slider 11 drives the spring 3, and then drives the smoke collection hood 2 to move downward, when an obstacle is encountered, the obstacle prevents the smoke collection hood 2 from moving down , the motor 24 drives the slider 11 to drive the spring 3 to continue to move down. When the displacement sensor 8 in the normally closed state is out of contact with the smoke collecting hood 2 and is in a separated state, the two displacement sensors 8 are in the open state and send a stop signal. The controller controls the motor 24 to stop moving, and then makes the fume collecting hood 2 stop moving; when the fume collecting hood 2 moves upward relative to the body 1, the spring 3 is in a semi-compressed state, and the elastic force of the spring 3 is equal to the gravity of the fume collecting hood 2. Displacement sensors 8 on the time support sheet, wherein one displacement sensor 8 is initially a normally open state (that is, the top of the displacement sensor 8 is separated from the smoke collection hood 2), and the other displacement sensor 8 is initially a normally closed state (that is, the displacement sensor 8 The top of the top is in contact with the smoke collection hood 2), the motor 24 drives the slider 11 to move up on the screw 20, the slider 11 drives the spring 3, and then drives the smoke collection hood 2 to move upward. When encountering an obstacle, the obstacle Blocking the upward movement of the fume collecting hood 2, the motor 24 drives the slider 11 to drive the spring 3 to continue to move upward. When the displacement sensor 8 in the normally open state contacts the fume collecting hood 2, both displacement sensors 8 are in the closed state, and a stop signal is issued. Signal, the controller controls the motor 24 to stop moving, and then makes the smoke collecting hood 2 stop moving, prevents damage to obstacles, and also prevents the smoke collecting hood 2 from being hit by obstacles.

Apparently, the above-mentioned embodiments are only examples for clear description, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. And the obvious changes or changes derived therefrom are still within the scope of protection of the present invention.

Claims (17)

1. A device with a fume collecting hood, comprising a body (1), is characterized in that, also includes: The fume collecting hood (2) is movably connected with the body (1); The anti-collision device is connected with the fume collecting hood (2), and is suitable for sending a stop signal when the fume collecting hood (2) touches an obstacle during movement relative to the body (1); The controller is electrically connected with the anti-collision device, and is adapted to control the fume collecting hood (2) to stop moving when receiving a stop signal from the anti-collision device. 2. The device with a fume collecting hood according to claim 1, characterized in that, it also includes a driving device connected with the fume collecting hood (2), and the driving device is suitable for driving the fume collecting hood (2) ) moves relative to the body (1); the controller is electrically connected to the driving device, and is adapted to control the driving device to stop driving the set when receiving a stop signal from the anti-collision device. The fume hood (2) moves. 3. The device with a smoke collecting hood according to claim 2, wherein the anti-collision device comprises: A biasing member, one end is connected to the smoke collecting hood (2), and the other end is connected to the driving device; The trigger device is suitable for sending out a stop signal when the fume collecting hood (2) touches an obstacle during the movement process relative to the body (1). 4 . The device with a fume collecting hood according to claim 3 , further comprising a guide piece disposed inside the biasing piece. 5 . 5. The device with a fume collecting hood according to claim 3, wherein the triggering device comprises: A pick piece (5), which is arranged on one of the fume collecting hood (2) and the driving device; At least one micro switch (6), set on the other of the fume collecting hood (2) and the driving device, when the paddle (5) is in contact with the micro switch (6) , the trigger device sends a stop signal. 6. The device with a fume collecting hood according to claim 5, characterized in that, the trigger device comprises two micro switches (6) arranged at intervals, and the paddle (5) is located between the two between the microswitches (6). 7. The device with a fume collecting hood according to claim 5, characterized in that, the fume collecting hood (2) is provided with a fixing seat (7), and the micro switch (6) is arranged on the fixing seat (7). on the seat (7). 8. The device with a fume collecting hood according to claim 3, characterized in that, the triggering device comprises two displacement sensors (8), which are located at both the fume collecting hood (2) and the driving device On one of them, one of the displacement sensors (8) is initially in a normally open state, and the other one of the displacement sensors (8) is initially in a normally closed state. 9. The device with a fume collecting hood according to claim 8, characterized in that a support (9) is provided on the driving device, and the displacement sensor (8) is arranged on the support (9) . 10. The device with a fume collecting hood according to any one of claims 2-9, wherein the driving device comprises: powerplant; The transmission mechanism is connected with the power device and the biasing member, and is adapted to drive the biasing member and the smoke collecting hood (2) to move under the drive of the power device. 11. The device with a fume collecting hood according to claim 10, characterized in that the power device is a push rod motor (10). 12. The device with a fume collecting hood according to any one of claims 3-9, characterized in that the biasing member is a spring (3). 13. The device with a fume collecting hood according to any one of claims 2-9, characterized in that the fume collecting hood (2) moves up and down along the body (1). 14. The device with fume collection hood according to claim 13, characterized in that, The body (1) is provided with a limiting cavity (12), and the limiting cavity (12) is provided with the smoke collecting hood (2); A first flange (13) extends outwards from the top of the limiting chamber (12), a second flange (14) extends outwards from the top of the smoke collecting hood (2), and the first flange extends outwards. When the edge (13) is in contact with the second flange (14), the smoke collecting hood (2) moves to the lower limit position. 15. The device with a fume collecting hood according to claim 14, characterized in that guide rails (15) or bumps (16) are provided in the limiting cavity (12), and the fume collecting hood (2) A bump (16) or a guide rail (15) matingly connected with the guide rail (15) or the bump (16) is provided on the top. 16. The device with a smoke collecting hood according to claim 15, characterized in that, the top of the guide rail (15) is provided with a closed end (17), and the projection (16) moves to the closed end ( 17), the fume collecting hood (2) moves to the upper limit position. 17. The device with a fume collecting hood according to any one of claims 1-9, characterized in that the device with a fume collecting hood is an integrated stove.