Detection device and gas stove

Abstract

The present invention relates to a detection device and a gas stove, comprising: a main body provided with a first locking portion; a detection member provided with a second locking portion, the first locking portion cooperating with or separating from the second locking portion to enable the detection member to be locked to the main body in a first direction or to enable the detection member to move relative to the main body in the first direction; a transmission member that can switch between a first state and a second state when the detection member moves relative to the main body in the first direction; in the first state, the transmission member emits a first signal, and in the second state, the transmission member emits a second signal different from the first signal. For the above detection device and gas stove, when the user does not want to use the automatic detection function, the detection member is locked to the main body by the cooperation of the first locking portion and the second locking portion, meeting the user's need not to use the automatic detection function and improving the user experience.

Description

Technical Field

[0001] The present invention relates to the field of detection technologies, and particularly to a detection device and a gas stove. Background Art

[0002] A gas stove refers to a kitchen appliance that uses liquefied petroleum gas, artificial gas, natural gas, etc. for direct fire heating. For the convenience of use and to ensure the personal safety of users of gas stoves, gas stoves with an automatic pot detection function have gradually entered people's lives. When the detection device detects that the pot is removed from the gas stove, the gas stove switches to a low-fire state or a flame-off state. When the detection device detects that the pot is placed back on the gas stove, the gas stove switches back to a high-fire state or a flame-on state.

[0003] For traditional gas stoves, when users do not want to use the automatic pot detection function, they cannot lock it, resulting in a poor user experience. Summary of the Invention

[0004] Based on this, in view of the problem that the automatic pot detection function of traditional gas stoves cannot be flexibly adjusted, it is necessary to provide a detection device and a gas stove that can conveniently and flexibly adjust the automatic pot detection function.

[0005] A detection device includes:

[0006] A main body provided with a first locking portion;

[0007] A detection member provided with a second locking portion, the first locking portion and the second locking portion cooperate or separate to enable the detection member to be locked on the main body in a first direction or enable the detection member to move relative to the main body in the first direction;

[0008] A transmission member, when the detection member moves relative to the main body in the first direction, can switch between a first state and a second state; in the first state, the transmission member emits a first signal, and in the second state, the transmission member emits a second signal different from the first signal.

[0009] In one embodiment, one of the first locking portion and the second locking portion is a locking hole, and the other is a pressing rod that can be inserted and locked into the locking hole.

[0010] In one embodiment, the locking hole includes a first sub-hole and a second sub-hole arranged oppositely, the pressing rod includes a first sub-rod and a second sub-rod arranged oppositely, one of the first sub-rod and the second sub-rod can be inserted and locked into the first sub-hole, and the other of the first sub-rod and the second sub-rod can be inserted and locked into the second sub-hole.

[0011] In one embodiment, at least a part of the detection member is rotatable relative to the body so that the detection member can be switched between being locked to the body and moving relative to the body.

[0012] In one embodiment, the detection member includes a probe and a connecting plate connected to each other. The probe and the connecting plate can move together relative to the body in the first direction, and the probe can rotate relative to the connecting plate so that the probe rotates relative to the body.

[0013] In one embodiment, when the detection member is locked to the body in the first direction, the detection member has a first length protruding from the first surface of the body; in the first state, the detection member has a second length protruding from the first surface; in the second state, the detection member has a third length protruding from the first surface;

[0014] Wherein, the third length is less than the second length, and the first length is less than or equal to the third length.

[0015] In one embodiment, in the first direction, the transfer member has at least two transfer parts arranged at intervals; in the first state, when all the transfer parts are not triggered, the transfer member emits the first signal; in the second state, when any one of the transfer parts is triggered, the transfer member emits the second signal.

[0016] In one embodiment, in the second state, the detection member has a third length protruding from the first surface, each transfer part corresponds to one third length, and the first length is less than or equal to the smallest one of all the third lengths.

[0017] In one embodiment, the transfer member is a photoelectric switch.

[0018] In one embodiment, a detection hole is formed in the body, and the transfer member is assembled on the body and is opposite to the detection hole;

[0019] Wherein, in the first state, the transfer member can emit an optical signal to the outside through the detection hole; in the second state, the detection member blocks the path of the transfer member emitting an optical signal to the outside through the detection hole.

[0020] In one embodiment, the detection device further includes an elastic member, which is connected to both the body and the detection member. When the detection member is switched from the first state to the second state, the elastic member elastically deforms and stores energy, and when the detection member is switched from the second state to the first state, the elastic member elastically returns.

[0021] In one embodiment, an assembly cavity is provided in the body, a guiding hole communicating with the assembly cavity is provided on the body, one end of the detecting member is arranged in the assembly cavity, and the other end passes through the guiding hole. The detecting member can move relative to the body in the axial direction of the guiding hole.

[0022] In one embodiment, the body includes a detachable base and a housing. The base and the housing are butted to define the assembly cavity, and the guiding hole is opened on the housing.

[0023] A gas stove includes the detecting device as described in any one of the above. The detecting device is used to detect whether a cooking pot is placed on the gas stove.

[0024] For the above detecting device and gas stove, when the user does not want to use the automatic detection function, the detecting member is locked to the body by the cooperation of the first locking portion and the second locking portion, meeting the user's need not to use the automatic detection function and improving the user experience. Description of the Drawings

[0025] Figure 1 Structural diagram of a gas stove provided by an embodiment of the present invention;

[0026] Figure 2 For Figure 1 exploded view of the detecting device of the gas stove shown in;

[0027] Figure 3 For Figure 2 structural diagram when the detecting member of the detecting device shown in is in the first state;

[0028] Figure 4 For Figure 2 structural diagram when the detecting member of the detecting device shown in is in a second state;

[0029] Figure 5 For Figure 2 structural diagram when the detecting member of the detecting device shown in is in another second state;

[0030] Figure 6 For a flat-bottomed pot placed on Figure 1 working state diagram of the detecting device when the gas stove shown in is;

[0031] Figure 7 For a pointed-bottomed pot placed on Figure 1 working state diagram of the detecting device when the gas stove shown in is;

[0032] Figure 8 For Figure 2 structural diagram when the detecting member of the detecting device shown in is in the locked state.

[0033] 100, Gas stove; 10, Detection device; 11, Body; 111, Assembly cavity; 112, Guide hole; 113, First surface; 114, Base; 115, Housing; 116, Detection hole; 12, Detection piece; 121, Probe; 122, Connection plate; 13, Transfer piece; 131, Transfer part; 14, Elastic piece; 15, Second convex column; 16, First convex column; 17, First locking part; 18, Second locking part; 19, Second bracket; 20, Controller; 30, Bottom shell; 40, Burner; 50, First bracket; 60, Panel; 200, Flat pan; 300, V-bottom pan. Detailed implementation manners

[0034] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following will describe the detailed implementation manners of the present invention with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0037] In the present invention, unless otherwise clearly specified or limited, the terms "installed", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0039] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0040] Referring to Figure 1 , an embodiment of the present invention provides a gas stove 100, including a detection device 10 and a controller 20. The detection device 10 is used to detect whether a cooking pot is placed on the gas stove 100. When a cooking pot is placed on the gas stove 100, the detection device 10 determines that there is a cooking pot, and sends a second signal to the controller 20. The controller 20 controls the gas stove 100 to fire or increase the firepower to achieve automatic firing or automatic increase of the firepower of the gas stove 100. When the cooking pot is removed from the gas stove 100, the detection device 10 determines that there is no cooking pot, and sends a first signal different from the second signal to the controller 20. The controller 20 controls the gas stove 100 to turn off the fire or reduce the firepower to achieve automatic turning off of the fire or automatic reduction of the firepower of the gas stove 100.

[0041] The gas stove 100 further includes a bottom case 30 and a burner 40. The burner 40 and the detection device 10 are both disposed on the bottom case 30. Gas is ejected from the burner 40 and mixed with air for combustion to heat the food in the cookware. The gas stove 100 further includes a panel 60 connected to the bottom case 30. The panel 60 is provided with a through hole, and the burner 40 corresponds to the through hole. In one embodiment, the burner 40 passes through the through hole, that is, the upper end surface of the burner 40 is higher than the upper surface of the panel 60. It should be understood that in some other embodiments, the burner 40 may not pass through the through hole, for example, the upper end surface of the burner 40 is flush with the upper surface of the panel 60, or the upper end surface of the burner 40 is lower than the upper surface of the panel 60.

[0042] The gas stove 100 includes at least two burners 40 to facilitate heating different foods and reduce cooking time. Specifically, the gas stove 100 includes two burners 40 to save kitchen space on the premise of reducing cooking time.

[0043] The gas stove 100 further includes a first bracket 50. Each first bracket 50 is disposed on the panel 60 and surrounds each burner 40. Each detection device 10 is adjacent to each first bracket 50 so that when the cookware is supported on the first bracket 50, the detection device 10 can contact the cookware to perform the detection function.

[0044] Refer to Figure 2 , in one embodiment, the detection device 10 includes a body 11 and a detection member 12. The body 11 is fixedly connected to the bottom case 30. The detection member 12 is movably connected to the body 11 in a first direction (vertical direction) to switch between a first state (refer to Figure 3 ) and a second state (refer to Figure 4 and Figure 5 ). When no cookware is placed on the gas stove 100, the detection member 12 passes through the panel 60. When there is cookware placed on the gas stove 100, the detection member 12 may pass through the panel 60 or be flush with the panel 60, which is not limited herein. That is, when the detection member 12 is in the first state, the detection member 12 has a second length protruding from the first surface 113 (the upper surface of the body 11) of the body 11. When the detection member 12 is in the second state, the detection member 12 has a third length protruding from the first surface 113 of the body 11, and the third length is less than the second length.

[0045] Continue to refer to Figure 2, the detection device 10 further includes a transmission member 13, and the transmission member 13 is electrically connected to the controller 20. When the cookware is placed on the first bracket 50, the detection member 12 contacts the cookware and moves downward relative to the body 11 under the gravity of the cookware to be pressed down to the second state. At this time, the transmission member 13 sends a second signal to the controller 20, and the controller 20 controls the gas stove 100 to fire. When the cookware is removed from the first bracket 50, the gravity acting on the detection member 12 disappears, and the detection member 12 moves upward relative to the body 11 to the first state. At this time, the transmission member 13 sends a first signal to the controller 20, and the controller 20 controls the gas stove 100 to turn off the fire or reduce the firepower.

[0046] Furthermore, the detection device 10 further includes an elastic member 14. The elastic member 14 is connected to both the body 11 and the detection member 12. When the detection member 12 switches from the first state to the second state, the elastic member 14 elastically deforms and stores energy. When the detection member 12 switches from the second state to the first state, the elastic member 14 elastically returns. Specifically, the elastic member 14 is a spring.

[0047] With such a setting, when the cookware is placed on the first bracket 50, the detection member 12 contacts the cookware. The detection member 12 causes the elastic member 14 to elastically deform and store energy under the action of the cookware, and the detection member 12 moves downward relative to the body 11 to be pressed down. At this time, the transmission member 13 sends a second signal to the controller 20, and the controller 20 controls the gas stove 100 to fire. When the cookware is removed from the first bracket 50, the gravity acting on the detection member 12 disappears, and the elastic return of the elastic member 14 causes the detection member 12 to move upward relative to the body 11 to the initial position. At this time, the transmission member 13 sends a first signal to the controller 20, and the controller 20 controls the gas stove 100 to turn off the fire or reduce the firepower.

[0048] In this embodiment, when the cookware is removed from the first bracket 50, the elastic member 14 causes the detection member 12 to return to the first state. It should be understood that in some other embodiments, the detection member 12 can also be manually or through other devices to return to the first state, which is not limited herein.

[0049] Specifically, the elastic member 14 includes two arranged in parallel and at intervals to ensure the reset effect of the detection member 12. It should be understood that in some other embodiments, the number of the elastic members 14 is not limited.

[0050] In one embodiment, an assembly cavity 111 (see Figure 3 ) is provided in the body 11, and a guide hole 112 (see Figure 2) One end of the elastic member 14 and the detecting member 12 is disposed in the assembly cavity 111, and the other end passes through the guiding hole 112. The elastic member 14 abuts between the detecting member 12 and the cavity wall of the assembly cavity 111 facing the guiding hole 112. The detecting member 12 can move axially relative to the main body 11 in the guiding hole 112. With such a setting, the assembly cavity 111 not only protects the elastic member 14, but also the guiding hole 112 can guide the detecting member 12 to facilitate the up-and-down movement of the detecting member 12 and prevent the detecting member 12 from skewing during movement.

[0051] Specifically, continue to refer to Figure 2 , the main body 11 includes a detachable base 114 and a housing 115. The base 114 and the housing 115 are butt-jointed to define the assembly cavity 111. The guiding hole 112 is opened on the housing 115. The main body 11 is connected to the bottom case 30 through the base 114. With such a setting, it is convenient to dispose one end of the elastic member 14 and the detecting member 12 in the assembly cavity 111.

[0052] More specifically, the base 114 is connected to the bottom case 30 by screws. At the same time, the base 114 and the housing 115 are detachably connected by screws. It should be understood that in some other embodiments, the base 114 and the housing 115 can also be detachably connected by snap fasteners.

[0053] In one embodiment, the transmitting member 13 is a photoelectric switch, which uses the occlusion or reflection of a light beam by the object to be detected to turn on the circuit through a synchronization circuit, thereby detecting the presence or absence of an object. In one implementation, when the cookware is placed on the first bracket 50, the detecting member 12 reflects the light beam emitted by the photoelectric switch, the photoelectric switch is triggered, and the photoelectric switch emits a second signal. When the cookware is removed from the first bracket 50, the detecting member 12 will not be able to reflect the light beam emitted by the photoelectric switch, the photoelectric switch is not triggered, and the photoelectric switch emits a first signal. In another embodiment, it can also be set that when the cookware is placed on the first bracket 50, the detecting member 12 cannot reflect the light beam emitted by the photoelectric switch, the photoelectric switch emits a second signal, and when the cookware is removed from the first bracket 50, the detecting member 12 reflects the light beam emitted by the photoelectric switch, and the photoelectric switch emits a first signal.

[0054] Furthermore, the detecting member 12 is an infrared sensor, and a detecting hole 116 is opened on the housing 115 (refer to Figure 2) The transfer member 13 is assembled on the body 11 and is opposite to the detection hole 116. Specifically, the transfer member 13 is assembled on the body 11 through the second bracket 19. Among them, in the first state, the transfer member 13 can emit a light signal to the outside through the detection hole 116; in the second state, the detection member 12 blocks the path of the transfer member 13 to emit a light signal to the outside through the detection hole 116. That is, when the cookware is placed on the first bracket 50, the detection member 12 blocks the path of the transfer member 13 to emit a light signal to the outside through the detection hole 116, so as to reflect the light beam emitted by the transfer member 13, and the infrared sensor emits a second signal. When the cookware is removed from the first bracket 50, the transfer member 13 can emit a light signal to the outside through the detection hole 116, and the detection member 12 cannot reflect the light beam of the transfer member 13, and the infrared sensor emits a first signal.

[0055] Of course, in some other embodiments, the transfer member 13 can also be a proximity switch. When the cookware is placed on the first bracket 50, the detection member 12 moves towards the transfer member 13, and the transfer member 13 emits a second signal. When the cookware is removed from the first bracket 50, the detection member 12 moves away from the transfer member 13, and the transfer member 13 emits a first signal.

[0056] Specifically, in the moving direction of the detection member 12 relative to the body 11, the transfer member 13 has at least two transfer parts 131 arranged at intervals (see Figure 2 ); in the first state, when all the transfer parts 131 are not triggered, the transfer member 13 emits a first signal; in the second state, when any one of the transfer parts 131 is triggered, the transfer member 13 emits a second signal. Among them, the third length is the same as the number of the transfer parts 131. With such a setting, the detection device 10 can be applicable to detecting different cookwares. For example, when the cookware is a flat pan 200, the distance that the detection member 12 moves downward is shorter, and at this time only the upper transfer part 131 can be triggered (see Figure 4 and Figure 6 ); for example, when the cookware is a pointed-bottom pan 300, the distance that the detection member 12 moves downward is longer, and at this time the lower transfer part 131 can be triggered (see Figure 5 and Figure 7 ).

[0057] More specifically, in the moving direction of the detection member 12 relative to the body 11, the transfer member 13 has two transfer parts 131 arranged at intervals. It should be understood that in some other embodiments, in the moving direction of the detection member 12 relative to the body 11, the transfer member 13 can also have more than two transfer parts 131, which is not limited herein.

[0058] Continue to refer to Figure 2, in one embodiment, the detecting member 12 includes a probe 121 and a connecting plate 122 connected to each other. The connecting plate 122 is disposed in the assembly cavity 111. The elastic member 14 abuts between the connecting plate 122 and the cavity wall of the assembly cavity 111. The probe 121 passes through the guiding hole 112. In the second state, the connecting plate 122 blocks the path of the light signal emitted by the transmitting member 13 to the outside through the detecting hole 116. Since the connecting plate 122 is a plate-like structure, it is convenient to block the light beam emitted by the transmitting member 13. Of course, in some other embodiments, the structure of the detecting member 12 is not limited thereto.

[0059] Specifically, a first convex post 16 is provided on the connecting plate 122, and a second convex post 15 is provided on the cavity wall of the assembly cavity 111. Both ends of the elastic member 14 are respectively sleeved outside the first convex post 16 and the second convex post 15, so as to facilitate the fixing of the elastic member 14 and prevent the elastic member 14 from being displaced during the compression or reset process.

[0060] Continue to refer to Figure 2 , in one embodiment, a first locking portion 17 is provided on the main body 11, and a second locking portion 18 is provided on the detecting member 12. The cooperation between the first locking portion 17 and the second locking portion 18 can lock the detecting member 12 to the main body 11 in the first direction (refer to Figure 8 ), or the separation between the first locking portion 17 and the second locking portion 18 can enable the detecting member 12 to move relative to the main body 11 in the first direction. That is, for the gas stove 100 provided in this embodiment, the detecting member 12 of the detecting device 10 can be switched between the locked state locked to the main body 11 and the released state capable of moving relative to the main body 11. In this way, when the user does not want to use the automatic detection function, the detecting member 12 is locked to the main body 11 by the cooperation of the first locking portion 17 and the second locking portion 18, meeting the user's need not to use the automatic detection function and improving the user experience.

[0061] Specifically, when the detecting member 12 is locked to the main body 11, the probe 121 has a first length protruding from the first surface 113 of the main body 11, and the first length is less than or equal to the third length. In this way, since the first length of the detecting member 12 protruding from the first surface 113 of the main body 11 is less than or equal to the third length, it shows that the detecting device 10 does not interfere with the flat placement of the cookware.

[0062] In one embodiment, when the transmitting member 13 has at least two transmitting portions 131 arranged at intervals from each other, the third length is equal to the number of the transmitting portions 131. At this time, the first length is set to be less than the smallest one of all the third lengths. Of course, in some other embodiments, the first length can also be set to be less than any one of the third lengths, which is not limited herein.

[0063] Further, in a specific embodiment, the smaller one of the first length and the third length is set to be equal. At this time, the detection device 10 is always in a state with a pot, and the firepower of the gas stove 100 can be adjusted to the maximum state, which is convenient for after-sales personnel to check the fire transmission condition of the gas stove 100.

[0064] Continue to refer to Figure 8 , one of the first locking portion 17 and the second locking portion 18 is a locking hole, and the other is a pressing rod that can be inserted and locked in the locking hole. It should be understood that in some other embodiments, the structures of the first locking portion 17 and the second locking portion 18 are not limited.

[0065] The first locking portion 17 is a locking hole, and the second locking portion is a pressing rod connected to the probe 121. The locking hole includes a first sub-hole and a second sub-hole arranged oppositely. The pressing rod includes a first sub-rod and a second sub-rod arranged oppositely. One of the first sub-rod and the second sub-rod can be inserted and locked in the first sub-hole, and the other of the first sub-rod and the second sub-rod can be inserted and locked in the second sub-hole. The first sub-hole and the second sub-hole can be one of various shapes such as circular, strip-shaped, or hexagonal.

[0066] In one embodiment, at least a part of the detecting member 12 can rotate relative to the body 11 so that the detecting member 12 can be switched between a locked state and a released state. Specifically, one end of the probe 121 connected to the connecting plate 122 is arranged in the connecting plate 122 and rotatably connected to the connecting plate 122 so that the detecting member 12 can be switched between a locked state and a released state. When the detecting member 12 needs to be switched from the released state to the locked state, the probe 121 is pressed and rotated, and the pressing rod is inserted into the locking hole. At this time, the detecting member 12 cannot move up and down relative to the body 11; when the detecting member 12 needs to be switched from the locked state to the released state, the probe 121 is rotated to disengage the pressing rod from the locking hole.

[0067] Another embodiment of the present invention further provides a detecting device 10 included in the above-mentioned gas stove 100. The cooperation of the first locking portion 17 and the second locking portion 18 can lock the detecting member 12 to the body 11 in the first direction or enable the detecting member 12 to move relative to the body 11 in the first direction. When the detecting member 12 moves relative to the body 11 in the first direction, it can be switched between a first state and a second state. In the first state, the transmitting member 13 sends a first signal to the controller 20, and the controller 20 controls the gas stove 100 to fire. In the second state, the transmitting member 13 sends a second signal different from the first signal to the controller 20, and the controller 20 controls the gas stove 100 to turn off the fire or reduce the firepower, realizing the automatic pot detection function. At the same time, when the user does not want to use the automatic detection function, the detecting member 12 is locked to the body 11 by the cooperation of the first locking portion 17 and the second locking portion 18, meeting the user's need not to use the automatic detection function and improving the user experience.

[0068] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0069] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A detection device for detecting whether a cooking pot is placed on a gas stove (100), characterized in that, Comprising: A body (11) provided with a first locking portion (17); A detecting member (12) provided with a second locking portion (18), wherein the first locking portion (17) and the second locking portion (18) cooperate or separate, enabling the detecting member (12) to be locked to the body (11) in a first direction or enabling the detecting member (12) to move relative to the body (11) in the first direction; A transmitting member (13), when the detecting member (12) moves relative to the body (11) in the first direction, capable of switching between a first state and a second state; the first state is the state of the detecting member (12) when no cookware is placed, in the first state, the transmitting member (13) emits a first signal, and the first signal is used for automatic flameout or automatic reduction of the flame of the gas stove (100); the second state is the state of the detecting member (12) when cookware is placed, in the second state, the transmitting member (13) emits a second signal different from the first signal, and the second signal is used for automatic ignition or automatic increase of the flame of the gas stove (100); In the first direction, the transmitting member (13) has at least two spaced-apart transmitting portions (131); in the first state, when all the transmitting portions (131) are not triggered, the transmitting member (13) emits the first signal; in the second state, when any one of the transmitting portions (131) is triggered, the transmitting member (13) emits the second signal; The transmitting member (13) is a photoelectric switch; a detection hole (116) is formed in the body (11), and the transmitting member (13) is assembled on the body (11) and is opposite to the detection hole (116); wherein, in the first state, the transmitting member (13) can emit an optical signal to the outside through the detection hole (116); in the second state, the detecting member (12) blocks the path of the optical signal emitted by the transmitting member (13) to the outside through the detection hole (116).

2. The detection device according to claim 1, wherein One of the first locking portion (17) and the second locking portion (18) is a locking hole, and the other is a pressure rod capable of being inserted and locked into the locking hole.

3. The detection device according to claim 2, characterized in that, The locking hole includes a first sub-hole and a second sub-hole arranged oppositely, the pressure rod includes a first sub-rod and a second sub-rod arranged oppositely, one of the first sub-rod and the second sub-rod can be inserted and locked into the first sub-hole, and the other of the first sub-rod and the second sub-rod can be inserted and locked into the second sub-hole.

4. The detection device according to claim 1, characterized in that, At least a part of the detecting member (12) can rotate relative to the body (11), so that the detecting member (12) can switch between being locked to the body (11) and moving relative to the body (11).

5. The detection device according to claim 4, characterized in that, The detection member (12) includes a probe (121) and a connecting plate (122) connected to each other. The probe (121) and the connecting plate (122) can move together relative to the body (11) in the first direction, and the probe (121) can rotate relative to the connecting plate (122) so that the probe (121) rotates relative to the body (11).

6. The detection device according to claim 1, characterized in that When the detection member (12) is locked to the body (11) in the first direction, the detection member (12) has a first length protruding from the first surface (113) of the body (11); in the first state, the detection member (12) has a second length protruding from the first surface (113); in the second state, the detection member (12) has a third length protruding from the first surface (113); Wherein, the third length is less than the second length, and the first length is less than or equal to the third length.

7. The detection device according to claim 6, characterized in that, Each transfer portion (131) corresponds to one of the third lengths, and the first length is less than or equal to the smallest one of all the third lengths.

8. The detection device according to claim 1, characterized in that The detection device further includes an elastic member (14). The elastic member (14) is connected to both the body (11) and the detection member (12). When the detection member (12) switches from the first state to the second state, the elastic member (14) elastically deforms to store energy. When the detection member (12) switches from the second state to the first state, the elastic member (14) elastically returns.

9. The detection device according to claim 1, wherein An assembly cavity (111) is provided in the body (11). A guiding hole (112) communicating with the assembly cavity (111) is provided on the body (11). One end of the detection member (12) is arranged in the assembly cavity (111), and the other end passes through the guiding hole (112). The detection member (12) can move relative to the body (11) in the axial direction of the guiding hole (112).

10. The detection device according to claim 9, characterized in that, The body (11) includes a detachable base (114) and a housing (115). The base (114) and the housing (115) are butted to define the assembly cavity (111), and the guiding hole (112) is opened on the housing (115).

11. A gas stove, characterized in that, The gas stove includes the detection device according to any one of claims 1-10, and the detection device is used to detect whether a cooking utensil is placed on the gas stove (100).

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