CN210532464U

CN210532464U - Column-shaped safety device of gas stove

Info

Publication number: CN210532464U
Application number: CN201921005750.2U
Authority: CN
Inventors: 杜泽儒
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-05-15
Anticipated expiration: 2029-06-28

Abstract

The utility model relates to a columnar safety device of a gas stove, which is arranged on a starting shaft of the gas stove and comprises a knob, a connecting module, a driving module and a control module; the knob is configured with a disk forming a footprint; the connecting module is connected with the knob and is constructed with connectors which can be matched with different starting shaft sizes; the driving module is provided with a transmission component which is connected with the knob in a combining way and a driver which can be selectively connected with or separated from the transmission component; the control module controls the driver by detecting the movement of the knob; the connecting module, the driving module and the control module are all overlapped in the covering area of the disc body, so that the connecting module, the driving module and the control module are longitudinally arranged towards the direction of the starting shaft, and the whole volume of the safety device is reduced.

Description

Column-shaped safety device of gas stove

Technical Field

The utility model relates to a cylindrical safety device body of a gas stove installed in a water storage system, in particular to a buffer device which can slow down the fluctuation of liquid level caused by water storage and can prevent the problem of water turbidity generated in the process of pressurizing and storing water.

Background

In order to prevent the user from forgetting to turn off the stove, a technology of adding a timing switch to a gas supply line or a gas switch without changing the design of the gas stove itself has been proposed.

In the latter detailed design, the common device model is an additional device which can automatically rotate a knob used as a gas switch or a rotating shaft of the knob, but because the device is additionally provided with an additional component, the device occupies a certain volume, and other problems such as the device is difficult to install due to overlarge volume, or the device falls off after being installed, or only a switch can be arranged on the gas stove to additionally provide the device due to the interference problem of overlarge volume, and the like.

However, in the problem of reducing the volume of the device, unless the device is specially designed for each component, the device is limited by the volume limit of the existing parts on the market, the volume of the device is limited by the volume of the components which bring effects such as a battery, a driving device, a transmission device, a knob or a button, a display screen and the like, therefore, if the device is not to be reduced by changing the design of the components, the space between the components must be reduced by changing the configuration position and the arrangement mode of the components in the device, so as to reduce the volume of the device.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims to provide a: a safety device for gas stove features that the original arrangement mode is changed to reduce the volume of the whole device, so preventing the interference between multiple devices and the danger caused by too large volume.

In order to achieve the above object, the utility model adopts the following technical scheme: a cylindrical safety device of a gas range, which is installed on a starting shaft of the gas range, comprises:

a knob configured with a disk forming a covering area, the disk having a manipulation side and a connection side located at an opposite position of the manipulation side, the connection side being provided with a connection shaft along the direction of the actuating shaft;

the connecting module is connected with the connecting shaft and is provided with a connecting head which can be matched with different starting shaft sizes;

the driving module is provided with a driver and a transmission component, the transmission component is connected with the connecting module, and the driver can be selectively connected with or separated from the transmission component;

the control module is electrically connected with the driver and is provided with a sensor for detecting the movement of the knob and used for generating a starting signal to control the driver;

the connecting module, the driving module and the control module are all overlapped on the coverage area of the disc body, so that the knob, the control module, the driving module and the connector are longitudinally arranged in the direction towards the starting shaft.

The cylindrical safety device of the gas stove comprises a base body, wherein a first accommodating space used for accommodating the driving module and the control module and a second accommodating space located below the first accommodating space and used for accommodating the connecting module are arranged in the base body, in the first accommodating space, a long shaft of the driver is perpendicular to the central axis of the base body, and the driver is located on one side of the central axis.

In the first accommodation space, a long axis of a power supply groove of the control module is perpendicular to the central axis of the base body, and the driver and the power supply groove are respectively positioned on two opposite sides of the central axis.

In the cylindrical safety device of the gas stove, one part of the control module is arranged above the driver and adjacent to the power supply groove, and the rest part of the control module is arranged below the power supply groove and adjacent to the driver.

The cylindrical safety device of the gas stove is characterized in that the connecting module is provided with a fluted disc which rotates in the direction of the starting shaft, the driver can drive a driving gear which rotates in the direction perpendicular to the starting shaft, the transmission assembly comprises a relay gear, and the driving gear indirectly drives the fluted disc through the relay gear.

The cylindrical safety device of a gas stove, the relay gear includes a first gear portion and a second gear portion, the first gear portion and the second gear portion are respectively connected to the driving gear and the toothed disc, so that the rotation axis of the driver and the rotation axis of the relay gear are parallel to each other, and the extension direction of the rotation axis of the relay gear can pass through the rotation axis of the toothed disc.

In the cylindrical safety device of the gas stove, the driving module comprises a clutch connected with the driver and the transmission assembly, and the clutch comprises a screw rod connected with the driver, a clutch piece sleeved with the screw rod, a limit groove for the clutch piece to be arranged and a driving gear connected with the transmission assembly; when the clutch is in a separated state, the clutch piece and the driving gear are separated from each other, and the clutch piece can be far away from or close to the driving gear under the combined action of the screw rod and the limiting groove; when the clutch is in a combined state, the clutch piece is in contact with the driving gear, and the clutch piece can drive the driving gear to further drive the transmission assembly under the action of the screw rod.

A protrusion is arranged on one side, close to the clutch piece, of the driving gear, a braking piece is arranged on one side, close to the driving gear, of the clutch piece, and the braking piece is provided with a clamping portion and an inclined portion adjacent to the clamping portion; when the clutch piece rotates in a first rotating direction, the clamping part pushes against the protrusion to enable the clutch piece to drive the driving gear to rotate, and when the clutch piece rotates in a second rotating direction, the inclined part contacts the protrusion to enable the clutch piece and the driving gear to slide.

In the cylindrical safety device of the gas stove, the knob can perform reciprocating movement in the direction of the starting shaft, the control module comprises a pressing piece used for starting a timer, and the pressing piece is pressed by the knob during reciprocating movement.

The control module is also provided with a display screen which is adjacent to one side of the knob, and the knob is provided with a light-transmitting part for displaying the display screen.

The control module is also provided with an on-line unit which is used for connecting an external device capable of generating a reminding signal.

Compared with the prior art, adopt above-mentioned technical scheme the utility model has the advantages of: the connecting module, the driving module and the control module are overlapped in a coverage area formed by the disc body of the knob, and when the connecting module, the driving module and the control module are overlapped, the connecting module, the driving module and the control module are longitudinally arranged towards the direction of the starting shaft, and the size of the whole safety device is reduced through the change of the configuration mode.

Drawings

FIG. 1 is a schematic view of a block of the cylindrical safety device of the gas range according to the present invention;

FIG. 2 is a schematic diagram of the assembly of components in the embodiment of FIG. 1;

FIG. 3 is a cross-sectional view of the components of FIG. 2 in combination;

FIGS. 4A and 4B are schematic views illustrating the operation of the sensor of FIG. 1;

FIG. 5A is a diagram illustrating the control module of FIG. 1 connected to an external device;

FIG. 5B is a block diagram of a control module in another embodiment;

FIG. 6 is a cross-sectional view of the drive module of FIG. 2;

FIG. 7 is an exploded view of the drive module;

fig. 8A and 8B are schematic cross-sectional views of the driving module in fig. 7 in different states;

fig. 9A and 9B are schematic diagrams illustrating an alternative connection head in fig. 2.

Description of reference numerals: 10-cylindrical safety device of gas stove; 11-starting the shaft; 110-starting axis direction; 20-a knob; 21-coverage area; 22-a tray body; 22 a-a steering side; 22 b-connecting side; 221-a connecting shaft; 221 a-a first shaft; 221 b-a second shaft; 221 c-card slot; 221 d-convex column; 222-a light-transmitting portion; 30-a connection module; 31-a connector; 311-an adapter; 311 a-an acting part; 311 b-an accommodating part; 312-an adapter; 312 a-an adapter; 32-a patch panel; 33-a fluted disc; 331-a fluted disc holder; 332-a flange; 40-a drive module; 41-a driver; 410-major axis; 42-a transmission assembly; 421-relay gear; 421 a-first gear part; 421 b-second gear part; 43-a clutch; 43 a-binding state; 43 b-detached state; 431-screw rod; 432-a drive gear; 432 a-a protrusion; 433 — a clutch; 433 a-bumps; 433 b-a stopper; 433 c-an action part; 433 d-engaging part; 433 e-an inclined portion; 434-a limiting groove; 434a — first limit area; 434 b-a second confinement region; 44-gear box; 50-a control module; 51-a central controller; 510-an online unit; 52-display screen; 53-a sensor; 53a- -closed state; 53b- -Start State; 54-indicator light; 54a- -a light emitting member; 54b- -a light guide; 55-power supply groove; 550-long axis; 551-a cover body; 552-a battery; 56-buzzer; 57-pressing member; 60-seat body; 61-an upper shell; 610-a first accommodating space; 611-set area; 62-a lower shell; 620-a second accommodating space; 63-central axis; 70-external device.

Detailed Description

The invention will be further described with reference to specific embodiments and drawings, the advantages and features of which will become more apparent as the description proceeds.

Referring to fig. 1 and 2, the cylindrical safety device 10 of the gas stove of the present invention, connected to a starting shaft 11 of the gas stove, includes a knob 20, a connecting module 30, a driving module 40 and a control module 50.

As shown in the drawings, the knob 20 is configured with a plate 22 forming a covering area 21, the plate 22 has a control side 22a and a connection side 22b located opposite to the control side 22a, the connection side 22b is provided with a connection shaft 221 along a starting shaft direction 110 of the gas stove, the connection shaft 221 has a first rotation shaft 221a connected with the plate 22 and a second rotation shaft 221b connected with the connection module 30, and the first rotation shaft 221a and the second rotation shaft 221b are mutually clamped through a set of clamping grooves 221c, so that the first rotation shaft 221a can drive the second rotation shaft 221b to rotate.

The connection module 30 is connected to the second rotating shaft 221b, and is configured with a connection head 31 capable of matching different sizes of the starting shaft 11, so that a user can rotate the starting shaft 11 by rotating the knob 20, wherein, for a part of the connection head 31, refer to the following description.

The driving module 40 comprises a driver 41, a transmission component 42 and a clutch 43, the transmission component 42 of the driving module 40 is connected to the connecting module 30; when the driver 41 of the driving module 40 rotates in different directions, the clutch 43 can selectively connect or disconnect the transmission assembly 42 to change between a disconnected state where the driver 41 cannot drive the transmission assembly 42 and a connected state where the driver 41 can drive the transmission assembly, so that the driver 41 can drive the connecting module 30 to rotate the starting shaft 11 and the driver 41 is separated from the transmission assembly 42 and is not affected when the knob 20 drives the starting shaft 11 to rotate.

The control module 50 is electrically connected to the driver 41, and comprises a central controller 51 including a timing unit (not shown) and an on-line unit 510, a display screen 52, a sensor 53, two indicator lights 54, a power supply slot 55 (provided with a cover 551) for accommodating a power supply (such as a battery 552), and a buzzer 56, and each component of the control module 50 is electrically connected to the driver 41, and the position of the movement of the knob 20 is detected by the sensor 53, so that the central controller 51 generates an activation signal to control the driver 41 to change the position of the knob 20 according to a set condition.

As shown in the figure, the projection positions of the connection module 30, the driving module 40 and the control module 50 are all overlapped in the coverage area 21 of the tray 22 when combined, and present a longitudinal arrangement towards the starting axis direction 110, so as to reduce the overall volume of the device.

In the present embodiment, the above components of the cylindrical safety device 10 of the gas stove do not exceed the coverage area when installed, and the overall volume of the device can be reduced as much as possible; but in other embodiments there is no particular limitation as long as a longitudinal arrangement is present, even if a small part of the partial elements slightly protrudes from the coverage area 21.

Referring to fig. 2 and 3, in a detailed configuration of the components of the present embodiment, the cylindrical safety device 10 of the gas stove includes a base 60 formed by an upper housing 61 and a lower housing 62, a first accommodating space 610 for accommodating the driving module 40 and the control module 50 and a second accommodating space 620 (formed in the lower housing 62) located below the first accommodating space 610 for accommodating the connecting module 30 are formed in the upper housing 61.

In the first accommodating space 610, the long axis 410 of the driver 41 is perpendicular to the central axis 63 of the base 60, so that the height of the cylindrical safety device 10 of the gas stove is not greatly increased by the length of the driver 41; when the positioning is performed, the driver 41 is further located at one side of the central axis 63, so that the long axis 410 of the driver 41 does not pass through the central axis 63, and the shape of the remaining portion of the first accommodating space 610 can be kept as complete as possible to facilitate the positioning of other components; in this embodiment, the long axis 550 of the power supply slot 55 and the long axis 410 of the driver 41 are parallel to each other and located on opposite sides of the central axis 63, so that the driver 41 and the power supply slot 55 can be as close to each other as possible.

As shown in fig. 3, in the present embodiment, the first accommodating space 610 includes a setting region 611, the setting region 611 is located above the driving module 40 and adjacent to the power supply slot 55, so that the center of the long axis 550 of the driver 41 and the center of the long axis 550 of the power supply slot 55 are located on different height planes; the setting area 611 is used to accommodate components of the control module 50, such as the display screen 52 and the indicator lights 54, which are preferably close to the surface of the housing 60, so that a part of the components of the control module 50 are located above the driver 41 and adjacent to the power supply slot 55, which is also preferably disposed on the surface of the housing 60.

And the display screen 52 and the indicator lights 54 disposed on a substrate in the accommodating space can be displayed on the surface of the seat 60, but the present invention is not particularly limited to the arrangement positions of the components of the control module 51, but in order to reduce the overall size of the device, the buzzer 56 and the sensor 53 are disposed in the arrangement region 611, and the central controller 51 is disposed below the power supply slot 55 and adjacent to the driver 41; in addition; in the present embodiment, the indicator 54 includes a light emitting element 54a (such as an LED) disposed on the substrate, and a light guiding pillar 54b for guiding the light of the light emitting element 54a to the surface of the base 60.

In this embodiment, in order to reduce the overall size of the device, the knob 20 is made of a transparent material, and a light-transmitting portion 222 is formed on the knob 20 for allowing a user to directly observe the display screen 52 and the indicator 54 through the knob 20; of course, in other examples, the knob 20 does not need to be made of a transparent material completely, as long as the light-transmitting portion 222 is disposed on the tray 22.

Referring to fig. 4A and 4B, referring to the actuation manner of the sensor 53 in the present embodiment, a plurality of protruding columns 221d are disposed around the first rotating shaft 221a of the knob 20, and a length of one of the protruding columns 221d is longer so that the protruding column 221d is farther away from an axis of the first rotating shaft 221a, and can be triggered to the sensor 53 disposed in the setting area 611 when rotating to a specific position, so that the control module 50 can determine the position of the first rotating shaft 221a by determining whether the sensor 53 is triggered, and further determine the position of the starting shaft 11 to determine whether the gas stove is in a closed state 53a or a starting state 53B.

The present invention is not particularly limited to the type of the sensor 53, so that in other embodiments of the present invention, the sensor 53 may be a magnetic reed switch for sensing the position of a magnet disposed on the knob 20, and the magnet does not necessarily need to be disposed on the first rotating shaft 221a and instead disposed on the disk 20 and following the rotation of the disk 20.

Referring to fig. 5A, in order to prevent the user from not hearing the buzzer 56 or from not knowing that the battery of the cylindrical safety device 10 of the gas stove needs to be replaced and loses function, in the present embodiment, the central controller 50 can connect a mobile phone as a user of the external device 70 through the connection unit 510, and remind the user through an APP program; in the present invention, the connection mode, connection object and starting condition of the connection unit 510 are not limited, but in different embodiments, the connection mode may be the existing wifi technology, the connection object may be the alarm installed in the apartment manager or the mobile phone of the user's family, tablet, etc., and the starting condition may be operated according to the program set in the central controller 50,

referring to fig. 5B, in another type of embodiment, the control module 50 may further include a pressing member 57 capable of starting the timing unit of the central controller 51, in one type of embodiment, the knob 20 can be relatively moved by making a reciprocating movement between the first rotating shaft 221a and the second rotating shaft 221B in the starting shaft direction 110, and the pressing member can be pressed by the knob 20 at the lowest point of the reciprocating movement of the knob 20 to start the timing unit.

In the central controller 51, the present invention does not limit the condition that the central controller 51 sends the start signal, so that in an embodiment, the timing unit built in the central controller 51 is utilized to send the start signal to control the driver 41 and the buzzer 56 to start according to a set time as the set condition after the sensor 53 confirms that the position of the start shaft 11 is not in the closed state 53 a.

Referring to fig. 3, fig. 6 to fig. 8B, regarding the parts of the driving module 40, as mentioned above, the driving module 40 includes the driver 41, the clutch 43 and the transmission assembly 42, and the three components (41, 42, 43) are commonly disposed in a gear box 44 and disposed in the first accommodating space 610; the driver 41 is connected to the clutch 43, the clutch 43 is connected to a relay gear 421 serving as the transmission assembly 42, and the relay gear 421 is connected to a fluted disc 33 of the connection module 30, so that the fluted disc 33 can be indirectly driven by the relay gear 421 to drive the entire connector 31 to rotate along with the driver 41.

The clutch 43 includes a screw 431 connected to the driver 41, a driving gear 432 connected to the transmission assembly 42, a clutch member 433 sleeved on the screw 431, and a limit groove 434 formed on the gear box 44 and provided for the clutch member 433 to be disposed, as shown in the figure, the clutch member 433 is provided with a plurality of protrusions 433a on the peripheries of the two ends thereof, and the limit groove 434 has a first limit area 434a extending in the direction of the long axis 550 of the driver 41 and a second limit area 434b perpendicular to the extending direction of the first limit area 434 a; when the clutch 43 is in a disengaged state 43b as shown in fig. 8A, the clutch member 433 and the driving gear 432 are disengaged from each other, and the convex point 433a of the clutch member 433 is located in the first limit region 434 a; when the clutch 43 is in a coupling state 43a as shown in fig. 8B, the clutch member 433 and the driving gear 432 are coupled to each other, and the convex point 433a of the clutch member 433 is located in the second limit region 434B.

In the process of the clutch 43 changing from the disengaged state 43B of fig. 8A to the engaged state 43a of fig. 8B, first, in the disengaged state 43B, the driver 41 starts to rotate in a first rotation direction, and drives the screw 431 to rotate; since the protruding point 433a is located in the first position-limiting area 434a and is pushed by the wall surface of the position-limiting groove 434 in the first rotation direction, when the screw 431 rotates in the separated state 43b, the clutch member 433 can only move relative to the screw 431 inside the screw 431 without rotating with the screw 431, and thus the starting position of the clutch member fully separated from the driving gear 432 in the figure approaches to the driving gear 432.

When the clutch member 433 is continuously moved toward the driving gear 432 such that the salient point 433a is entered from the first position-limiting region 434a into the second position-limiting region 434B, the driving gear 432 is in contact with the clutch member 433 to assume the engaged state 43a as shown in fig. 8B; in the combination state 43a, since the protruding point 433a of the clutch member 433 is located in the second limiting region 434b and is not pushed by the limiting groove 434 in the first rotation direction, the clutch member 433 rotates together under the action of the screw 431, and further drives the driving gear 432 and the relay gear 421 serving as the transmission assembly 42.

As shown in fig. 7, a protrusion 432a is disposed at one end of the driving gear 432 close to the clutch member 433, a quadrangular stopping member 433b is disposed at one side of the front end of the clutch member 433 close to the driving gear 432, each side of the stopping member 433b is respectively provided with a right-angled triangular acting portion 311a, one strand of the acting portion 311a is formed as an engaging portion 433d, and the oblique side of the stopping member 433b is formed as an inclined portion 433e adjacent to the engaging portion 433 d; the engaging portion 433d can contact and push against the protrusion 432a when the clutch member 433 rotates in the first rotational direction. Such that in the engaged state 43a the clutch 433 can drive the driving gear 432 to rotate in the first rotational direction.

As can be seen from the above description, when the driver 41 is activated to rotate in the first rotation direction, two strokes are actually included, one is a first stroke for making the clutch 43 change from the disengaged state 43b to the engaged state 43a, and the other is a second stroke for driving the transmission assembly 42, the link assembly and the activation shaft 11 to rotate.

In the process of the clutch 43 changing from the disengaged state 43B of fig. 8A to the engaged state 43a of fig. 8B, first, the central controller 51 controls the driver 41 to rotate in a second rotation direction opposite to the first rotation direction and drives the screw 431 to rotate, wherein, since the position of the salient point 433a in the second limit region 434B is mostly limited by the wall surface of the limit groove 434, the clutch member 433 can only rotate with the screw 431, and during the rotation, the inclined portion 433e of the brake member 433B of the clutch member 433 is moved toward the driver 41 by the protrusion 432a of the driving gear 432, whereby, when the salient point 433a on the clutch member 433 rotates in the second limit region 434B to the boundary between the second limit region 434B and the first limit region 434a, the projection 432a can be forced into the first limit area 434a by the drive gear 432.

Then, since the protrusion in the first position-limiting region 434a is pushed by the wall surface of the position-limiting groove 434 and cannot rotate, the screw rod 431 and the position-limiting member rotate relatively, so that the position-limiting groove 434 moves toward the position-limiting member, and the clutch member 433 and the driving gear 432 are completely separated.

As can be seen from the above description, when the driver 41 is activated to rotate in the second rotation direction, the driver also includes two strokes, namely, a third stroke for driving the screw rod 431 and the clutch member 433 to rotate together and making the salient point 433a on the clutch member 433 enter the first limit area 434a, and a fourth stroke for moving the salient point 433a on the clutch member 43 in the first limit area 434a and making the clutch member 433 and the driving gear 432 completely separate.

Regarding the relay gear 421, in this embodiment, the relay gear 421 has a first gear portion 421a and a second gear portion 421b, and the first gear portion 421a and the second gear portion 421b are respectively connected to the driving gear 432 and the toothed disc 33, so that the rotation axis of the actuator 41 and the rotation axis of the relay gear 421 can be parallel to each other, and the extension direction of the rotation axis of the relay gear 421 can still pass through the rotation axis of the toothed disc 33, so that the actuator 41 can be disposed on the side of the first accommodating space 610 away from the central axis 63; and, because the relay gear 421 and the driving gear 432 are disposed on the same height plane, and the size is only slightly larger than the driving gear 432 (and can contact with the toothed disc 33), the relay gear 421 still does not affect the height of the whole device.

Finally, referring to fig. 2, fig. 3, fig. 9A and fig. 9B, regarding the portion of the connection module 30, the connection module 30 is disposed in the second accommodating space 620 of the lower housing 62, and includes the adapter 31 (not shown in fig. 2 and fig. 3), a patch panel 32 connected to the adapter 31, and the fluted disc 33; the adapter 31 comprises an adapter 311 and an adapter 312 connected between the adapter 311 and the starting shaft 11; the toothed plate 33 includes a toothed plate base 331 connected to the adaptor plate 32.

As shown in the figure, the adaptor plate 32 has a plate surface 311 slightly smaller than the area of the covering region 21, the second rotating shaft 221b is connected to the center of the plate surface 311 and coaxial with the starting shaft 11, and the edge of the plate surface 311 on the side close to the first accommodating space 610 is connected to the fluted disc 33, so that the adaptor plate 32 can be driven by the driver 41 and the second rotating shaft 221b to rotate; therefore, when the driver 41 drives the fluted disc 33, the fluted disc 33 has a distance from the center of the adapting disc 32, so that a larger moment can be formed to rotate the starting shaft 11; a flange 332 is disposed on a side wall surface of the fluted disc holder 331, and the flange 332 is configured to contact with a wall surface of an inner edge of the lower housing 62, so that the fluted disc holder 331 cannot be separated from the holder body 60 when the gas stove is separated.

In this embodiment, the adapter 311 is disposed on one side of the adapter plate 32 away from the first accommodating space 610, and is provided with an acting portion 311a extending in the extending direction of the starting shaft 11 and an accommodating portion 321b located beside the acting portion 311; the adaptor 312 is provided with two adaptor parts 312a corresponding to different shapes for connecting the starting shaft 11, and the adaptor parts 312a are adjacent to each other; when the adaptor 312 is connected to the adaptor seat 311, one of the adaptor parts 312a is disposed on the acting part 311a, and the other adaptor part 312a is disposed on the accommodating part 321B, so that the cylindrical safety device 10 of the gas stove can correspond to the different types of the starting shafts 11 by disposing different types of the adaptor parts 312a on the acting part 311a, as shown in fig. 9A and 9B.

The present invention is not limited to the type of the connection module 30, and in other embodiments, the adaptor 312 is not necessarily rectangular, but may be circular (and has a plurality of adaptor portions 312a surrounding into a ring shape); alternatively, the adaptor plate 32 may not have the adaptor seat 311 and the adaptor 312, but an existing connecting element, such as an adaptor slot that can be fastened by screws and correspond to the starting shafts 11 with different sizes, is disposed at the center of the adaptor plate 32, as long as the volume of the connecting element can be disposed inside the second accommodating space 620.

As can be seen from the above, the present invention is characterized in that by overlapping the connection module 30, the driving module 40 and the control module 50 in the covered area 21 formed by the plate 22 of the knob 20, and when overlapped, the three also present a longitudinal arrangement towards the direction 110 of the starting axis, and, when overlapped, the driver 41 and the long axis 550 of the power supply slot, which are relatively large in volume, are also arranged parallel to each other and on both sides of the central axis 63 in the device, which saves space, and the driver 41 can be driven by the relay gear 421 and the driving gear 432 with similar diameters, so that the driver 41 can provide the maximum force to drive the fluted disc 33 and the starting shaft 11 even if the driver is deviated from the central axis 63, and thus, the volume of the whole safety device can be reduced and the performance among all components can be kept through the change of the configuration mode; the driver 41 can select whether to connect with the transmission assembly 42 by driving the clutch 43 to change the connection state of the clutch 43, so that the action of the user when turning the knob 20 to start the gas stove will not affect the driver 41 because the clutch 43 is separated from the transmission assembly 42, and when the driver 41 is actuated, the clutch 43 connects with the transmission assembly 42 to drive the starting shaft 11.

The foregoing description and examples are exemplary only, and are not intended to limit the scope of the invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications are intended to be included within the scope of the invention.

Claims

1. A cylindrical safety device of a gas range is mounted on a starting shaft of the gas range, and is characterized by comprising:

2. The cylindrical safety device for a gas range as defined in claim 1, wherein: the cylindrical safety device of the gas stove comprises a base body, wherein a first accommodating space used for accommodating the driving module and the control module and a second accommodating space located below the first accommodating space and used for accommodating the connecting module are arranged in the base body, in the first accommodating space, a long shaft of the driver is perpendicular to the central axis of the base body, and the driver is located on one side of the central axis.

3. The cylindrical safety device for a gas range as defined in claim 2, wherein: in the first accommodating space, a long axis of a power supply groove of the control module is perpendicular to the central axis of the seat body, and the driver and the power supply groove are respectively positioned at two opposite sides of the central axis.

4. The cylindrical safety device for a gas range as defined in claim 1, wherein: the connecting module has a fluted disc rotating in the starting shaft direction, the driver can drive a driving gear rotating in the direction perpendicular to the starting shaft direction, and the transmission assembly comprises a relay gear, so that the driving gear indirectly drives the fluted disc through the relay gear.

5. The cylindrical safety device for a gas range as defined in claim 4, wherein: the relay gear includes a first gear portion and a second gear portion, the first gear portion and the second gear portion are respectively connected to the driving gear and the gear disc, such that the rotation axis of the driver is parallel to the rotation axis of the relay gear, and the extension direction of the rotation axis of the relay gear can pass through the rotation axis of the gear disc.

6. The cylindrical safety device for a gas range as defined in claim 1, wherein: the driving module comprises a clutch connected with the driver and the transmission assembly, and the clutch comprises a screw rod connected with the driver, a clutch piece sleeved with the screw rod, a limiting groove for the clutch piece to be arranged and a driving gear connected with the transmission assembly; when the clutch is in a separated state, the clutch piece and the driving gear are separated from each other, and the clutch piece can be far away from or close to the driving gear under the combined action of the screw rod and the limiting groove; when the clutch is in a combined state, the clutch piece is in contact with the driving gear, and the clutch piece can drive the driving gear to further drive the transmission assembly under the action of the screw rod.

7. The cylindrical safety device for a gas range as defined in claim 6, wherein: a protrusion is arranged on one side, close to the clutch piece, of the driving gear, a braking piece is arranged on one side, close to the driving gear, of the clutch piece, and the braking piece is provided with a clamping portion and an inclined portion adjacent to the clamping portion; when the clutch piece rotates in a first rotating direction, the clamping part pushes against the protrusion to enable the clutch piece to drive the driving gear to rotate, and when the clutch piece rotates in a second rotating direction, the inclined part contacts the protrusion to enable the clutch piece and the driving gear to slide.

8. The cylindrical safety device for a gas range as defined in claim 1, wherein: the knob can perform reciprocating movement in the direction of the starting shaft, the control module comprises a pressing piece used for starting a timer, and the pressing piece is pressed by the knob during reciprocating movement.

9. The cylindrical safety device for a gas range as defined in claim 1, wherein: the control module is also provided with a display screen, the display screen is adjacent to one side of the knob, and a light-transmitting part for displaying the display screen is arranged on the knob.

10. The cylindrical safety device for a gas range as defined in claim 1, wherein: the control module is also provided with an on-line unit which is used for connecting an external device capable of generating a reminding signal.