CN216203552U - Detection device and gas stove - Google Patents

Abstract

The utility model relates to a detection device and a gas stove, comprising: a body provided with a first locking portion; a detecting member provided with a second locking portion, the first locking portion being engaged with or disengaged from the second locking portion, the detecting member being capable of being locked with the body in a first direction or being moved relative to the body in the first direction; a transmission member that is switchable between a first state and a second state when the detection member moves in the first direction with respect to the body; 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. Above-mentioned detection device and gas-cooker when the user does not want to use the automated inspection function, through first locking part and the cooperation of second locking part in order to lock the detection piece in the body, satisfied the user and did not want to use the demand of automated inspection function, improved user experience.

Description

Detection device and gas stove

Technical Field

The utility model relates to the technical field of detection, in particular to a detection device and a gas stove.

Background

The gas stove is a kitchen utensil which is heated by direct fire by burning liquefied petroleum gas, artificial gas, natural gas and other gases. In order to be convenient to use and ensure the personal safety of using the gas stove, the gas stove with the automatic cookware detection function gradually enters the lives of people. When the detection device detects that the cooker is put back on the gas stove again, the gas stove is switched to the big fire state or the fire state again.

Traditional gas-cooker when the user does not want to use pan automated inspection function, can not lock it, causes user experience not good.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a detection device and a gas stove capable of conveniently and flexibly adjusting the automatic detection function of the cooker, aiming at the problem that the automatic detection function of the cooker cannot be flexibly adjusted in the conventional gas stove.

A detection device, comprising:

a body provided with a first locking portion;

a detecting member provided with a second locking portion, the first locking portion being engaged with or disengaged from the second locking portion, the detecting member being capable of being locked to the body in a first direction or being moved relative to the body in the first direction;

a transmission member that is switchable between a first state and a second state when the detection member moves in the first direction with respect to the body; 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.

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 capable of being inserted into and locked in the locking hole.

In one embodiment, the locking hole comprises a first sub hole and a second sub hole which are arranged oppositely, the pressing rod comprises a first sub rod and a second sub rod which are arranged oppositely, one of the first sub rod and the second sub rod can be plugged into and locked in the first sub hole, and the other of the first sub rod and the second sub rod can be plugged into and locked in the second sub hole.

In one embodiment, at least a portion of the detector is rotatable relative to the body to enable the detector to switch between being locked to the body and moving relative to the body.

In one embodiment, the detecting member includes a probe and a connecting plate connected to each other, the probe and the connecting plate are jointly movable in the first direction relative to the body, and the probe is rotatable relative to the connecting plate to rotate the probe relative to the body.

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

wherein the third length is less than the second length, and the first length is less than or equal to the third length.

In one embodiment, in the first direction, the transmission member has at least two transmission parts arranged at intervals; when all the transmission parts are not triggered in the first state, the transmission piece sends out the first signal; in the second state, when any one of the transmission parts is triggered, the transmission member sends out the second signal.

In one embodiment, in the second state, the detecting member has third lengths protruding from the first surface, one third length corresponding to each of the transmitting portions, and the first length is equal to or less than a minimum one of all the third lengths.

In one embodiment, the transmission member is an opto-electronic switch.

In one embodiment, the body is provided with a detection hole, and the transmission piece is assembled on the body and is opposite to the detection hole;

wherein, in the first state, the transmission member can emit a light signal to the outside through the detection hole; in the second state, the detection piece is shielded on a path of the transmission piece for emitting the optical signal to the outside through the detection hole.

In one embodiment, the detecting device further includes an elastic member, the elastic member is connected to both the body and the detecting member, the elastic member is elastically deformed to store energy when the detecting member is switched from the first state to the second state, and the elastic member is elastically restored when the detecting member is switched from the second state to the first state.

In one embodiment, an assembly cavity is arranged in the body, a guide hole communicated with the assembly cavity is formed in the body, one end of the detection piece is arranged in the assembly cavity, the other end of the detection piece penetrates through the guide hole, and the detection piece can move relative to the body in the axial direction of the guide hole.

In one embodiment, the body comprises a base and a shell which are detachably connected, the base is butted with the shell to define the assembly cavity, and the guide hole is formed in the shell.

A gas stove comprises the detection device, and the detection device is used for detecting whether a cooker is placed on the gas stove or not.

Above-mentioned detection device and gas-cooker when the user does not want to use the automated inspection function, through first locking part and the cooperation of second locking part in order to lock the detection piece in the body, satisfied the user and did not want to use the demand of automated inspection function, improved user experience.

Drawings

Fig. 1 is a structural view of a gas range according to an embodiment of the present invention;

fig. 2 is an exploded view of a detecting device of the gas range shown in fig. 1;

FIG. 3 is a block diagram of the detecting member of the detecting device shown in FIG. 2 in a first state;

FIG. 4 is a structural view of the detecting member of the detecting device shown in FIG. 2 in a second state;

FIG. 5 is a structural view of the detecting member of the detecting device shown in FIG. 2 in another second state;

FIG. 6 is a view showing an operation state of the detecting device when the pan is placed on the gas range shown in FIG. 1;

FIG. 7 is a view showing the operation state of the detecting device when the pot with pointed bottom is placed on the gas range shown in FIG. 1;

fig. 8 is a structural view of the detecting member of the detecting device shown in fig. 2 in a locked state.

100. A gas range; 10. a detection device; 11. a body; 111. an assembly chamber; 112. a guide hole; 113. a first surface; 114. a base; 115. a housing; 116. a detection hole; 12. a detection member; 121. a probe; 122. a connecting plate; 13. a transfer member; 131. a transmission section; 14. an elastic member; 15. a second convex column; 16. a first convex column; 17. a first locking section; 18. a second locking portion; 19. a second bracket; 20. a controller; 30. a bottom case; 40. a burner; 50. a first bracket; 60. a panel; 200. a pan; 300. a pot with a pointed bottom.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, an embodiment of the present invention provides a gas stove 100, including a detection device 10 and a controller 20, wherein the detection device 10 is used for detecting whether a pot is placed on the gas stove 100. When a pot is placed on the gas stove 100, the detection device 10 determines that the pot is in a pot state, sends a second signal to the controller 20, and the controller 20 controls the gas stove 100 to fire or increases the fire power, so that the gas stove 100 can be automatically fired or the fire power can be automatically increased. When the pot is removed from the gas range 100, the detection device 10 determines that there is no pot, and sends a first signal different from the second signal to the controller 20, and the controller 20 controls the gas range 100 to turn off or turn down the fire power, so as to realize the automatic turning off or turning down of the fire power of the gas range 100.

The gas range 100 further comprises a bottom case 30 and a burner 40, wherein the burner 40 and the detecting device 10 are both arranged on the bottom case 30, and gas is sprayed from the burner 40 and mixed with air to be combusted so as to heat food in a pot. The gas range 100 further includes a panel 60 connected to the bottom housing 30, the panel 60 is provided with a through hole, the burner 40 corresponds to the through hole, in an embodiment, the burner 40 penetrates 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 other embodiments, the burner 40 may not extend through the through hole, such as the upper end surface of the burner 40 being flush with the upper surface of the face plate 60, or the upper end surface of the burner 40 being lower than the upper surface of the face plate 60.

The gas range 100 includes at least two burners 40 so as to heat different foods and reduce cooking time. Specifically, the gas range 100 includes two burners 40 to save kitchen space on the premise of reducing cooking time.

The gas range 100 further comprises first brackets 50, each first bracket 50 is arranged on the panel 60 and surrounds each burner 40, and each detection device 10 is adjacent to each first bracket 50, so that when a pot is supported on the first brackets 50, the detection device 10 can contact with the pot to perform a detection function.

Referring to fig. 2, in an embodiment, the detecting device 10 includes a body 11 and a detecting element 12, the body 11 is fixedly connected to the bottom case 30, and the detecting element 12 is movably connected to the body 11 in a first direction (up-down direction) to switch between a first state (see fig. 3) and a second state (see fig. 4 and 5). When no pot is placed on the gas stove 100, the detecting element 12 is disposed to penetrate the panel 60, and when a pot is placed on the gas stove 100, the detecting element 12 may be disposed to penetrate the panel 60 or be flush with the panel 60, which is not limited herein. That is, when the detection piece 12 is in the first state, the detection piece 12 has a second length protruding from the first surface 113 of the body 11 (the upper surface of the body 11), and when the detection piece 12 is in the second state, the detection piece 12 has a third length protruding from the first surface 113 of the body 11, the third length being smaller than the second length.

With continued reference to fig. 2, the detecting device 10 further includes a transmitting member 13, and the transmitting member 13 is electrically connected to the controller 20. When the pot is placed on the first bracket 50, the detecting member 12 contacts with the pot and moves downward relative to the main body 11 under the gravity of the pot to be pressed down to a second state, and at this time, the transmitting member 13 sends a second signal to the controller 20, and the controller 20 controls the gas stove 100 to be fired. When the pot is removed from the first bracket 50, the gravity acting on the detecting member 12 disappears, the detecting member 12 moves upward relative to the main body 11 to the first state, and the transmitting member 13 sends a first signal to the controller 20, and the controller 20 controls the gas stove 100 to shut down or turn down the fire.

Further, the detecting device 10 further includes an elastic member 14, the elastic member 14 is connected to both the body 11 and the detecting member 12, when the detecting member 12 is switched from the first state to the second state, the elastic member 14 elastically deforms to store energy, and when the detecting member 12 is switched from the second state to the first state, the elastic member 14 elastically returns. In particular, the elastic member 14 is a spring.

With such an arrangement, when a pot is placed on the first bracket 50, the detecting member 12 contacts with the pot, the detecting member 12 causes the elastic member 14 to elastically deform and store energy under the action of the pot, the detecting member 12 moves downward relative to the body 11 to be pressed down, the transmitting member 13 sends a second signal to the controller 20, and the controller 20 controls the gas stove 100 to fire. When the pot is removed from the first bracket 50, the gravity acting on the detecting member 12 disappears, the elastic member 14 elastically returns to urge the detecting member 12 to move upward to the initial position relative to the main body 11, and at this time, the transmitting member 13 sends a first signal to the controller 20, and the controller 20 controls the gas stove 100 to shut down or turn down the fire.

In this embodiment, when the pot is removed from the first bracket 50, the detecting member 12 is returned to the first state by the elastic member 14, and it should be understood that in other embodiments, the detecting member 12 may be returned to the first state manually or by other means, which is not limited herein.

In particular, the elastic element 14 comprises two parallel and spaced apart elements to ensure the return effect of the detecting element 12. It should be understood that in other embodiments, the number of the elastic members 14 is not limited.

In one embodiment, an assembly cavity 111 (see fig. 3) is disposed in the body 11, a guide hole 112 (see fig. 2) is disposed on the body 11 and communicated with the assembly cavity 111, one end of the elastic element 14 and the detecting element 12 is disposed in the assembly cavity 111, the other end of the elastic element is disposed in the guide hole 112, the elastic element 14 abuts between the detecting element 12 and a cavity wall of the assembly cavity 111 facing the guide hole 112, and the detecting element 12 can move relative to the body 11 in an axial direction of the guide hole 112. With this arrangement, the assembly cavity 111 not only protects the elastic member 14, but also the guide hole 112 can guide the detecting member 12 to facilitate the up-and-down movement of the detecting member 12, thereby preventing the detecting member 12 from being skewed during the movement.

Specifically, with continued reference to fig. 2, the body 11 includes a base 114 and a housing 115 that are detachably connected, the base 114 and the housing 115 are butted to define a mounting cavity 111, the guide hole 112 is opened on the housing 115, and the body 11 is connected to the bottom case 30 through the base 114. This arrangement facilitates locating the resilient member 14 and one end of the sensing member 12 in the mounting cavity 111.

More specifically, the base 114 is connected to the bottom case 30 by screws, and the base 114 is detachably connected to the housing 115 by screws. It should be understood that in other embodiments, the base 114 and the housing 115 may be detachably connected by a snap fit.

In one embodiment, the transmission member 13 is a photoelectric switch, which utilizes the shielding or reflection of the detected object to the light beam to connect the circuit by the synchronous circuit, thereby detecting the existence of the object. In one embodiment, when the pot is placed on the first rack 50, the detection member 12 reflects the light beam emitted by the photoelectric switch, the photoelectric switch is triggered, the photoelectric switch emits the second signal, when the pot is removed from the first rack 50, the detection member 12 cannot reflect the light beam emitted by the photoelectric switch, the photoelectric switch is not triggered, and the photoelectric switch emits the first signal. In another embodiment, the detecting member 12 may not reflect the light beam emitted by the photoelectric switch when the pot is placed on the first rack 50, and the photoelectric switch emits the second signal, and the detecting member 12 reflects the light beam emitted by the photoelectric switch when the pot is removed from the first rack 50, and the photoelectric switch emits the first signal.

Further, the detecting element 12 is an infrared sensor, the casing 115 is provided with a detecting hole 116 (see fig. 2), and the transmitting element 13 is assembled on the body 11 and opposite to the detecting hole 116. Specifically, the transmission member 13 is fitted to the body 11 through the second bracket 19. Wherein, in the first state, the transmission member 13 can emit an optical signal to the outside through the detection hole 116; in the second state, the detecting member 12 blocks a path of the transmitting member 13 for emitting the optical signal to the outside through the detecting hole 116. That is, when the pot is placed on the first rack 50, the detecting member 12 blocks the path of the transmitting member 13 emitting the light signal to the outside through the detecting hole 116 to reflect the light beam emitted from the transmitting member 13, the infrared sensor emits the second signal, when the pot is removed from the first rack 50, the transmitting member 13 can emit the light signal to the outside through the detecting hole 116, the detecting member 12 cannot reflect the light beam of the transmitting member 13, and the infrared sensor emits the first signal.

Of course, in other embodiments, the transmission member 13 may also be a proximity switch, when the pot is placed on the first rack 50, the detection member 12 moves towards the direction close to the transmission member 13, the transmission member 13 sends out the second signal, when the pot is removed from the first rack 50, the detection member 12 moves towards the direction far away from the transmission member 13, and the transmission member 13 sends out the first signal.

Specifically, in the moving direction of the detecting element 12 relative to the body 11, the transmitting element 13 has at least two transmitting portions 131 (see fig. 2) arranged at intervals; in the first state, when all the transmission parts 131 are not triggered, the transmission piece 13 sends out a first signal; in the second state, when any one of the transmission parts 131 is triggered, the transmission member 13 sends out a second signal. Wherein the third length is the same as the number of the transferring parts 131. So set up, detection device 10 can be applicable to and detect different pans. If the pot is the pan 200, the detecting member 12 moves downward for a short distance, and only the transmitting portion 131 located above is triggered (see fig. 4 and 6); if the pot is a pot 300 with a sharp bottom and the detecting element 12 moves downward for a longer distance, the transmitting portion 131 located below can be triggered (see fig. 5 and 7).

More specifically, the transmission member 13 has two transmission portions 131 spaced from each other in the moving direction of the detection member 12 with respect to the body 11. It should be understood that, in other embodiments, the transmission member 13 may also have more than two transmission portions 131 in the moving direction of the detecting member 12 relative to the body 11, and is not limited herein.

With reference to fig. 2, in an embodiment, the detecting element 12 includes a probe 121 and a connecting plate 122 connected to each other, the connecting plate 122 is disposed in the assembling cavity 111, the elastic element 14 is disposed between the connecting plate 122 and the cavity wall of the assembling cavity 111, the probe 121 is disposed in the guiding hole 112 in a penetrating manner, and in the second state, the connecting plate 122 is shielded on a path of the transmitting element 13 emitting the optical signal to the outside through the detecting hole 116. Since the connection plate 122 has a plate-like structure, it is convenient to block the light beam emitted from the transmission member 13. Of course, in other embodiments, the structure of the detection member 12 is not limited thereto.

Specifically, the connecting plate 122 is provided with a first protruding column 16, the cavity wall of the assembling cavity 111 is provided with a second protruding column 15, and two ends of the elastic element 14 are respectively sleeved outside the first protruding column 16 and the second protruding column 15, so as to fix the elastic element 14 and prevent the elastic element 14 from deviating in the process of being compressed or resetting.

With reference to fig. 2, in an embodiment, the body 11 is provided with a first locking portion 17, the detecting element 12 is provided with a second locking portion 18, the first locking portion 17 and the second locking portion 18 cooperate to lock the detecting element 12 with the body 11 in the first direction (see fig. 8), or the first locking portion 17 and the second locking portion 18 are separated to move the detecting element 12 relative to the body 11 in the first direction, that is, the gas stove 100 provided in this embodiment, the detecting element 12 of the detecting device 10 can be switched between a locking state of being locked to the body 11 or a releasing state of being able to move relative to the body 11. Thus, when the user does not want to use the automatic detection function, the first locking part 17 is matched with the second locking part 18 to lock the detection piece 12 on the body 11, so that the requirement that the user does not want to use the automatic detection function is met, and the user experience is improved.

Specifically, when the detecting member 12 is locked to the body 11, the probe 121 has a first length protruding from the first surface 113 of the body 11, the first length being equal to or less than a third length. Thus, since the first length of the detecting member 12 protruding from the first surface 113 of the body 11 is equal to or less than the third length, the problem of the detecting device 10 interfering with the lying of the pot is solved.

In one embodiment, when the transferring member 13 has at least two transferring parts 131 arranged at intervals, the third length is equal to the number of the transferring parts 131, and the first length is smaller than the smallest one of all the third lengths. Of course, in other embodiments, the first length may be smaller than any one of the third lengths, and is not limited herein.

Further, in an embodiment, the first length is equal to the smallest of the third lengths, and the detecting device 10 is always in the pot state, so that the fire power of the gas stove 100 can be adjusted to the largest state, thereby facilitating the after-sales personnel to check the fire transmission condition of the gas stove 100.

With reference to fig. 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 capable of being inserted into and locked in the locking hole. It should be understood that in other embodiments, the structures of the first locking portion 17 and the second locking portion 18 are not limited.

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 comprises a first sub-hole and a second sub-hole which are oppositely arranged, the pressure lever comprises a first sub-rod and a second sub-rod which are oppositely arranged, one of the first sub-rod and the second sub-rod can be plugged and locked in the first sub-hole, and the other of the first sub-rod and the second sub-rod can be plugged and locked in the second sub-hole. The first sub-hole and the second sub-hole can be one of a plurality of shapes such as a circle, a strip or a hexagon.

In one embodiment, at least a portion of the detecting member 12 is rotatable relative to the body 11 to switch the detecting member 12 between the locked state and the released state. Specifically, the end of the probe 121 connected to the connection plate 122 is disposed in the connection plate 122 and is rotatably connected to the connection plate 122, so that the detection member 12 is switched between the locked state and the released state. When the detecting piece 12 needs to be switched from the releasing state to the locking state, the probe 121 is pressed downwards and rotated, the pressing rod is inserted into the locking hole, and the detecting piece 12 cannot move up and down relative to the body 11 at the moment; when the detecting member 12 needs to be switched from the locked state to the released state, the rotation probe 121 disengages the pressing rod from the locking hole.

Another embodiment of the present invention further provides a detecting device 10 included in the gas stove 100, wherein the first locking portion 17 and the second locking portion 18 cooperate to lock the detecting member 12 with the body 11 in the first direction or move the detecting member 12 relative to the body 11 in the first direction. The detecting piece 12 can be switched between a first state and a second state when moving in the first direction relative to the body 11, in the first state, the transmitting piece 13 sends a first signal to the controller 20, the controller 20 controls the gas stove 100 to be on, in the second state, the transmitting piece 13 sends a second signal different from the first signal to the controller 20, and the controller 20 controls the gas stove 100 to be off or reduce the fire power, so that the automatic detection function of the cooker is realized. Meanwhile, when the user does not want to use the automatic detection function, the first locking part 17 is matched with the second locking part 18 to lock the detection piece 12 on the body 11, so that the requirement that the user does not want to use the automatic detection function is met, and the user experience is improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (14)

1. A detection device, comprising:

a body (11) provided with a first locking portion (17);

a detecting piece (12) provided with a second locking portion (18), wherein the first locking portion (17) is matched with or separated from the second locking portion (18) and can enable the detecting piece (12) to be locked on the body (11) in a first direction or enable the detecting piece (12) to move relative to the body (11) in the first direction;

a transmission member (13) that is switchable between a first state and a second state when the detection member (12) moves in the first direction with respect to the body (11); in the first state, the transmission member (13) emits a first signal, and in the second state, the transmission member (13) emits a second signal different from the first signal.

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 which can be inserted into and locked in the locking hole.

3. The detecting device for detecting the rotation of a motor rotor according to claim 2, wherein the locking hole comprises a first sub hole and a second sub hole which are oppositely arranged, the pressing rod comprises a first sub rod and a second sub rod which are oppositely arranged, one of the first sub rod and the second sub rod can be plugged in and locked in the first sub hole, and the other of the first sub rod and the second sub rod can be plugged in and locked in the second sub hole.

4. A testing device according to claim 1, characterized in that at least part of the testing member (12) is rotatable relative to the body (11) to enable the testing member (12) to be switched between being locked to the body (11) and being movable relative to the body (11).

5. The device according to claim 4, characterized in that said detecting member (12) comprises a probe (121) and a connecting plate (122) connected to each other, said probe (121) and said connecting plate (122) being jointly movable in said first direction with respect to said body (11), said probe (121) being rotatable with respect to said connecting plate (122) to rotate said probe (121) with respect to said body (11).

6. The detecting device according to claim 1, characterized in that the detecting member (12) has a first length protruding beyond a first surface (113) of the body (11) when the detecting member (12) is locked to the body (11) in the first direction; in the first state, the detecting member (12) has a second length protruding beyond the first surface (113); in the second state, the detecting member (12) has a third length protruding beyond 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 1, characterized in that in the first direction the transmission member (13) has at least two transmission portions (131) arranged at a distance from each other; in the first state, when all the transmission parts (131) are not triggered, the transmission piece (13) sends out the first signal; in the second state, when any one of the transmission parts (131) is triggered, the transmission member (13) sends the second signal.

8. The detecting device according to claim 7, characterized in that the detecting member (12) has a first length protruding beyond a first surface (113) of the body (11) when the detecting member (12) is locked to the body (11) in the first direction; in the second state, the detecting member (12) has a third length protruding from the first surface (113), one third length corresponding to each of the transmitting portions (131), and the first length is equal to or less than a minimum one of all the third lengths.

9. Detection device according to claim 1, characterized in that the transmission member (13) is an opto-electronic switch.

10. The detection device according to claim 9, wherein the body (11) is provided with a detection hole (116), and the transmission member (13) is assembled on the body (11) and is opposite to the detection hole (116);

wherein, in the first state, the transmission member (13) is capable of emitting an optical signal to the outside through the detection hole (116); in the second state, the detecting member (12) is shielded from a path of the transmitting member (13) for emitting the optical signal to the outside through the detecting hole (116).

11. The detecting device according to claim 1, characterized in that the detecting device further comprises an elastic member (14), the elastic member (14) is connected to both the body (11) and the detecting member (12), when the detecting member (12) is switched from the first state to the second state, the elastic member (14) is elastically deformed to store energy, and when the detecting member (12) is switched from the second state to the first state, the elastic member (14) is elastically restored.

12. The detection device according to claim 1, wherein an assembly cavity (111) is formed in the body (11), a guide hole (112) communicated with the assembly cavity (111) is formed in the body (11), one end of the detection member (12) is arranged in the assembly cavity (111), the other end of the detection member is arranged in the guide hole (112) in a penetrating manner, and the detection member (12) can move relative to the body (11) in the axial direction of the guide hole (112).

13. The detection device according to claim 12, characterized in that the body (11) comprises a base (114) and a housing (115) which are detachably connected, the base (114) and the housing (115) are butted to define the assembly chamber (111), and the guide hole (112) is opened on the housing (115).

14. Gas burner characterized in that it comprises a detection device according to any of claims 1 to 13 for detecting whether a pot is placed on the gas burner (100).

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