CN115363414A

CN115363414A - Steaming cooking device with door locking function

Info

Publication number: CN115363414A
Application number: CN202210728740.1A
Authority: CN
Inventors: 夏保清; 王黎喆
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-11-22
Anticipated expiration: 2042-06-24
Also published as: CN115363414B

Abstract

The invention relates to a steaming cooking device with a door locking function, which comprises a box body, an inner container arranged in the box body, and a door body used for covering a front side opening of the inner container, wherein a heating plate is arranged on the bottom wall of the inner container, the heating plate comprises a plate body and a heating pipe arranged on the plate body, the heating pipe comprises an inner ring heating pipe and an outer ring heating pipe arranged outside the inner ring heating pipe in an enclosing manner, and the steaming cooking device further comprises a door lock assembly, a first temperature control deformation piece, a transmission mechanism and an elastic reset piece. Compared with the prior art, the invention utilizes the heat generated by the inner ring heating pipe to deform the first temperature control deformation part, so that the first locking part and the second locking part can be detachably connected to lock the door body and the opening of the inner container, the door body is prevented from being opened by mistake or pushed open by the internal pressure of the inner container in the cooking process, a user is prevented from being scalded by hot gas in the inner container, and the use safety of the steaming cooking device is ensured.

Description

Steaming cooking device with door locking function

Technical Field

The invention relates to the field of cooking devices, in particular to a steaming cooking device with a door locking function.

Background

A steaming cooking device (e.g., a steam box, a steam oven, etc.) is a cooking device that can heat food using steam, for example: chinese patent application No. CN202210027173.7 (publication No. CN 114403693A) of "a steaming cooking liner structure and an electric steam box", chinese patent application No. CN202011581096.7 (publication No. CN 112716271A) "of" an integrated steaming and baking machine ", and chinese utility model patent No. ZL202122940902.1 (publication No. CN 216416808U)" of "a heat dissipation structure for a micro steaming oven and a micro steaming oven", etc. Under the mode state of steaming, the steam in the inner bag of the steaming cooking device is large, and if the door body is opened at the moment, the high-temperature steam in the inner bag can be directly injected to the user, so that the user is scalded. And when the steam pressure in the inner container is higher, the door body has the hidden danger of being pushed open by the steam, thereby causing the problems of air leakage of the inner container and the like.

The steaming cooking device heats water through the steam generator to generate steam, the steam generator comprises an external steam generator arranged outside the inner container and an internal steam generator arranged in the inner container, and the internal steam generator is a heating plate generally arranged on the bottom wall of the inner container. The heating plate generally comprises an inner heating tube and an outer heating tube, the inner heating tube and the outer heating tube work simultaneously in a heating stage in a steaming mode, and the outer heating tube does not work in a heat preservation stage, while the inner heating tube continues to work to maintain the temperature of the inner container.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide a steaming cooking device with a door locking function, which can lock a door body in a working state and automatically unlock the door body in a non-working state.

The second technical problem to be solved by the present invention is to provide a steaming cooking device with a door locking function, which can realize efficient and reliable locking of a door body.

The technical scheme adopted by the invention for solving at least one technical problem is as follows: the utility model provides a steam culinary art device with lock door function, includes the box, sets up the inner bag in this box and is used for the lid to close the door body on the front side opening of this inner bag, is provided with heating plate on the diapire of above-mentioned inner bag, and this heating plate includes the disk body and sets up the heating pipe on this disk body, and this heating pipe includes the inner circle heating pipe and encloses the outer lane heating pipe of establishing outside this inner circle heating pipe, its characterized in that still includes

The door lock assembly is used for locking the door body on the opening of the liner and comprises a first locking piece arranged on the door body and a second locking piece arranged on the box body or the liner,

a first temperature control deformation piece which is arranged on the inner ring heating pipe of the heating plate and can exchange heat with the inner ring heating pipe,

a transmission mechanism for linking the first temperature control deformation member and the second locking member, and

one end of the elastic resetting piece is connected with one end of the second locking piece;

and, under initial condition, above-mentioned elasticity resets a deformation and exerts elastic tension to the one end of above-mentioned second latch fitting, and above-mentioned first temperature control deformation passes through the other end of the taut second latch fitting of above-mentioned drive mechanism, and this tension more than or equal to above-mentioned elasticity resets the elastic tension that the piece acted on this first temperature control deformation, above-mentioned first latch fitting and second latch fitting break away from mutually, and above-mentioned elasticity resets the piece and makes the second latch fitting have towards first latch fitting direction motion and the trend continuous with this first latch fitting, and under the heating plate operating condition, above-mentioned first temperature control deformation piece deformation and unclamp above-mentioned second latch fitting, above-mentioned first latch fitting and second latch fitting can shirk the connection, above-mentioned elasticity resets the piece and is in natural state.

Furthermore, the first temperature control deformation member is of a wire rope structure, one end of the first temperature control deformation member is fixed with the inner ring heating pipe of the heating plate, and the other end of the first temperature control deformation member is connected with the transmission mechanism. Like this first control by temperature change deformation piece heaies up and makes its length grow to loosen above-mentioned second latch fitting, it is visible, with first control by temperature change deformation piece design for the action that the second latch fitting can be controlled through the deformation of this first control by temperature change deformation piece better for the line rope structure.

Further, the first temperature control deformation piece extends along the length direction of the inner ring heating pipe, and in a deformation state of the first temperature control deformation piece, the first temperature control deformation piece can move along the length direction of the inner ring heating pipe. Therefore, the inner ring heating pipe can fully exchange heat with the first temperature control deformation piece, and the deformation response of the first temperature control deformation piece to the temperature change of the inner ring heating pipe is further improved.

Furthermore, the inner ring heating pipe is provided with a guide chute extending along the length direction of the inner ring heating pipe, and the first temperature control deformation piece is embedded in the guide chute and can slide back and forth along the guide chute. On the one hand, the first temperature control deformation piece can be stably moved to drive the second locking piece to move under the deformation state of the other hand.

Furthermore, a second temperature control deformation piece which is in thermal shrinkage and cold expansion is embedded in the guide sliding groove, and the first temperature control deformation piece is wound on the second temperature control deformation piece. Heating plate during operation, first control by temperature change shape deformation is because of rising temperature and extension, and second control by temperature change shape deformation contracts because of rising temperature simultaneously, and then the first control by temperature change shape deformation after the heat expansion removes for second control by temperature change shape deformation, and makes the length that stretches out heating plate part further increase on its heat expansion's basis to can further reduce the tension to the second latch fitting.

Further, the second temperature control deformation member is a wire rope structure extending along the length direction of the inner ring heating pipe. Like this heating plate during operation, second control by temperature change deformation piece can evenly follow its length direction shrink to first control by temperature change deformation piece after making the heat swell can steadily move and make the length that stretches out heating plate part evenly increase for second control by temperature change deformation piece, thereby can realize the locking between second latch fitting and the first latch fitting steadily.

Further, drive mechanism includes the driving rope, and the first end of this driving rope is connected with the one end of above-mentioned first temperature control deformation spare and the second end is connected with above-mentioned second latch fitting. Therefore, the first temperature control deformation piece can drive the second locking piece to act through the transmission rope when deforming.

Further, the transmission mechanism further comprises an amplifying wheel, the amplifying wheel comprises a first wheel body and a second wheel body, the first wheel body and the second wheel body are coaxially arranged, the wheel diameter of the second wheel body is larger than that of the first wheel body, and the transmission rope is sequentially wound on the first wheel body and the second wheel body along the direction from the first end to the second end of the transmission rope. Through the enlarged effect of enlargiing the wheel, can increase the distance that the driving rope drove the second latch fitting and remove on the same deformation volume of first temperature control deformation spare basis, enlarge the effort to the second latch fitting promptly, and then improve the efficiency and the reliability of lock subassembly to the locking unblock of door body.

Furthermore, at least one counterweight guide block is hung on the transmission rope between the amplifying wheel and the first temperature control deformation piece at intervals. Thereby can lead to the driving rope for above-mentioned second latch fitting can be pulled better to this driving rope, avoids the kinetic energy loss.

Furthermore, the wheel surface of the second wheel body of the amplifying wheel is provided with an arc-shaped limiting groove which takes the rotating shaft of the second wheel body as the center of a circle and is embedded with a limiting shaft extending along the length direction of the rotating shaft of the second wheel body,

in the initial state, the limit shaft is positioned at one end of the limit groove, and in the working state of the heating plate, the limit shaft is positioned at the other end of the limit shaft. Therefore, the internal structure of the whole transmission mechanism is stable, and the second locking piece can be stably positioned in a locking state or an unlocking state.

Furthermore, the transmission mechanism also comprises a guide wheel for winding the transmission rope and enabling the transmission rope to extend along the moving direction of the first locking piece, and the distance between the guide wheel and the second end part of the transmission rope is smaller than that of the amplification wheel. Enable the driving rope to transmit to the second latch fitting better through the leading wheel, especially can stimulate the second latch fitting better and make second latch fitting and first latch fitting unblock smoothly when first temperature control deformation shrinkage.

Further, first latch fitting and second latch fitting are the block structure, and have seted up the lockhole on the first latch fitting, and above-mentioned second latch fitting epirelief is equipped with the locking piece that can insert in above-mentioned lockhole. Like this through the locking piece with the lockhole insert even can realize first latch fitting and the dismantlement of second latch fitting be connected, and then realize the locking of first latch fitting and second latch fitting.

Further, first latch fitting is fixed on the internal surface of above-mentioned door body and extends along the fore-and-aft direction, and the vertical extension of above-mentioned second latch fitting can be driven vertical removal down at above-mentioned drive mechanism, and the protruding locking lever that extends forward of level that is equipped with in front end of this second latch fitting, the protruding above-mentioned locking piece that is equipped with in top of this locking lever, and under the initial condition, lie in on the above-mentioned first latch fitting on this locking piece, and the lockhole of first latch fitting is just right from top to bottom with this locking piece. Through reciprocating of second latch fitting like this, can realize the relative action between the lockhole of the locking piece on the second latch fitting and first latch fitting, and then realize the locking and the unblock of first latch fitting and second latch fitting.

Further, elasticity resets and is the extension spring of vertical extension, and the upper end of this extension spring is connected on the mount pad of fixed setting, and the lower extreme is connected with the top of above-mentioned second latch fitting. Therefore, the tension spring can stably tension the second locking piece in the initial state and enable the second locking piece to always have the trend of moving upwards to be locked with the first locking piece, and the second locking piece can be stably locked with the first locking piece in the working state of the heating plate.

Furthermore, the second locking piece is convexly provided with a guide convex block, and the guide convex block is embedded in the vertically extending guide rail and can move up and down along the guide rail. Thereby enable the second latch fitting and reciprocate steadily for the locking piece on the second latch fitting can move for the lockhole of first latch fitting steadily, further improves the reliability to the locking of door body.

Compared with the prior art, the invention has the advantages that: in the culinary art process, the inner circle heating pipe of heating plate is in operating condition all the time, and it is relevant with the inside temperature height change of inner bag, the heat that utilizes the inner circle heating pipe to produce among the culinary art process like this makes first temperature control shape change, thereby make first latch fitting and second latch fitting shirk to be connected and with the opening locking of the door body with the inner bag, avoid culinary art in-process door body quilt mistake to open or by the inner bag in the pressure top-open, prevent that the user from being scalded by the inside steam of inner bag, guarantee to evaporate the safety in utilization of cooking device.

And, the intensification stage, the inner circle heating pipe and the outer lane heating pipe simultaneous working of heating plate, the heat that the inner and outer lane heating pipe produced acts on first temperature control deformation piece jointly, thereby improve the deformation response of first temperature control deformation piece, make the door body can be locked fast, furthermore, the heat preservation stage, although outer lane heating pipe stop work, the residual temperature of outer lane heating pipe still can act on first temperature control deformation piece, and simultaneously, outer lane heating pipe encloses the periphery at the inner circle heating pipe, thereby can reduce giving off outwards of the heat that the inner circle heating pipe produced, and then the heat that makes the inner circle heating pipe produce can be more fully transmitted to first temperature control deformation piece on, the reliability of door body locking state improves.

In addition, when the culinary art was ended, the inner circle heating pipe can utilize the residual heat to make first temperature control deformation keep the deformation state in the certain time after the culinary art is ended to remaining hot gas in the inner bag scalds the user when avoiding the culinary art to end, further promotes steaming cooking device's safety in utilization.

Drawings

Fig. 1 is a schematic structural view of a steaming cooking device in embodiment 1 of the present invention (in a door unlocked state);

fig. 2 is a schematic structural view of the steaming cooking device in another state (in a door locking state) in embodiment 1 of the present invention;

fig. 3 is a partial structural view of the steaming cooking device according to embodiment 1 of the present invention;

FIG. 4 is a schematic view of a heating plate in embodiment 1 of the present invention;

FIG. 5 is a schematic view of a heating plate in embodiment 2 of the present invention;

FIG. 6 is an enlarged view of portion A of FIG. 1;

FIG. 7 is an enlarged view of portion B of FIG. 1;

FIG. 8 is an enlarged view of portion C of FIG. 2;

fig. 9 is an enlarged view of a portion D in fig. 2.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

In the description of the present invention, it is to 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," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and simplicity in description, but do not indicate or imply that the devices or elements so referred to must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are illustrative only and are not to be construed as limiting since the disclosed embodiments of the invention can be positioned in different orientations, e.g., "upper" and "lower" are not necessarily limited to directions opposite or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Example 1:

as shown in fig. 1 to 4 and 6 to 9, a steaming and cooking device (such as a steam box, a steaming oven, etc.) with a door locking function includes a box body (in this embodiment, the box body only shows a bottom plate part), an inner container 1 arranged in the box body, and a door body 2 for covering the front side opening of the inner container 1, a heating plate 3 is arranged on the bottom wall of the inner container 1, the heating plate 3 includes a tray body 30 and a heating pipe arranged on the tray body 30, the heating pipe includes an inner ring heating pipe 31 and an outer ring heating pipe 32 enclosed outside the inner ring heating pipe 31, and an upper mounting plate 12 is horizontally arranged above the inner container 1.

Further, the steaming cooking device further comprises a door lock assembly 4, a first temperature control deformation piece 5, a transmission mechanism 7 and an elastic reset piece 8. The door lock assembly 4 is used to lock the door body 2 to the opening of the inner container 1, and includes a first locking member 41 disposed on the door body 2 and a second locking member 42 disposed on the cabinet or the inner container 1. The first temperature-controlled deformation member 5 is provided on the inner-ring heating pipe 31 of the heating plate 3 and can exchange heat with the inner-ring heating pipe 31. The transmission mechanism 7 is used for linking the first temperature-controlled deformation member 5 and the second locking member 42, and the elastic reset member 8 is a tension spring, and one end of the tension spring is connected with one end of the second locking member 42. Still further, in an initial state (i.e. in a state where the steaming cooking device is not operated), the elastic resetting member 8 is deformed to apply an elastic tensile force to one end of the second locking member 42, the first temperature-controlled deformation member 5 pulls the other end of the second locking member 42 through the transmission mechanism 7, and the tensile force is greater than or equal to the elastic tensile force of the elastic resetting member 8 acting on the first temperature-controlled deformation member 5 (in this embodiment, preferably, the tensile force is equal to the elastic tensile force), the first locking member 41 and the second locking member 42 are disengaged, the elastic resetting member 8 makes the second locking member 42 have a tendency of moving toward the first locking member 41 and being connected to the first locking member 41, and in a state where the heating plate 3 is operated (i.e. in a state where the steaming cooking device is operated), the first temperature-controlled deformation member 5 is deformed to release the second locking member 42, the first locking member 41 and the second locking member 42 are detachably connected, and the elastic resetting member 8 is in a natural state.

In the device course of cooking steams, the inner circle heating pipe 31 of heating plate 3 is in operating condition all the time, and it is relevant with the inside temperature height change of inner bag 1, the heat that utilizes inner circle heating pipe 31 to produce among the culinary art process like this makes first control by temperature change shape deformation 5 deformation, thereby make first latch fitting 41 and second latch fitting 42 can shirk the connection and lock the opening of the door body 2 with inner bag 1, avoid the culinary art in-process door body 2 by the mistake open or by the pressure top-open in inner bag 1, prevent that the user from being scalded by the inside steam of inner bag 1, guarantee to steam the safety in utilization of cooking device. And, the heating stage, inner circle heating pipe 31 and outer lane heating pipe 32 of heating plate 3 work simultaneously, the heat that inner and outer lane heating pipe 32 produced acts on first temperature control deformation 5 jointly, thereby improve the deformation response of first temperature control deformation 5, make door body 2 can be locked fast, furthermore, the heat preservation stage, although outer lane heating pipe 32 stops working, the residual temperature of outer lane heating pipe 32 still can act on first temperature control deformation 5, simultaneously, outer lane heating pipe 32 encloses in the periphery of inner circle heating pipe 31, thereby can reduce giving off of the heat that inner circle heating pipe 31 produced outwards, and then the heat that makes inner circle heating pipe 31 produce can be more fully transmitted to first temperature control deformation 5 on, improve the reliability of door body 2 locking state. Further, when the culinary art is over, inner circle heating pipe 31 can utilize the residual temperature to make first control by temperature change shape spare 5 keep the deformation state in the certain time after the culinary art is over to the remaining hot gas in the inner bag 1 scalds the user when avoiding the culinary art to end, further promotes steaming cooking device's safety in utilization.

The first temperature-control deformation member 5 can be realized in various ways, and in this embodiment, it is preferable that the first temperature-control deformation member 5 is a wire structure, one end of the first temperature-control deformation member 5 is fixed to the inner-ring heating pipe 31 of the heating plate 3, and the other end is connected to the transmission mechanism 7. Like this first control by temperature change shape deformation 5 heaies up and makes its length grow to loosen above-mentioned second latch fitting 42, it is visible, with first control by temperature change shape deformation 5 design for the line rope structure can be better through the action of this first control by temperature change shape deformation 5 control second latch fitting 42. Further preferably, the first temperature-control deformable member 5 extends along the longitudinal direction of the inner-ring heating pipe 31, and the first temperature-control deformable member 5 can move along the longitudinal direction of the inner-ring heating pipe 31 in a deformed state of the first temperature-control deformable member 5. Therefore, the inner ring heating pipe 31 can fully exchange heat with the first temperature control deformation piece 5, and the deformation response of the first temperature control deformation piece 5 to the temperature change of the inner ring heating pipe 31 is further improved. Still more preferably, the inner-ring heating pipe 31 is provided with a guide runner 311 extending in a longitudinal direction thereof, and the first temperature-controlled deformable member 5 is fitted into the guide runner 311 and is slidable back and forth along the guide runner 311. On the one hand, the first temperature control deformation piece 5 can be stably arranged, and on the other hand, the first temperature control deformation piece 5 can move more stably in the deformation state to drive the second locking piece 42 to move. The first temperature-control deformation member 5 is made of a metal material that expands with heat and contracts with cold, and is specifically copper or an alloy thereof in this embodiment.

Further, the transmission mechanism 7 includes a transmission rope 71, an amplifying wheel 72 and a guide wheel 73, wherein a first end of the transmission rope 71 is connected to one end of the first temperature-controlled deformation member 5, and a second end of the transmission rope 71 is connected to the second locking member 42, so that the transmission rope 71 can drive the second locking member 42 to move when the first temperature-controlled deformation member 5 deforms. The amplification wheel 72 includes a first wheel body 721 and a second wheel body 722 having a larger wheel diameter than the first wheel body 721, which are coaxially disposed, and the transmission rope 71 is sequentially wound around the first wheel body 721 and the second wheel body 722 along a direction from a first end to a second end thereof. Through the amplification effect of the amplification wheel 72, the distance that the transmission rope 71 drives the second locking piece 42 to move can be increased on the basis of the same deformation amount of the first temperature control deformation piece 5, namely, the acting force on the second locking piece 42 is amplified, and therefore the efficiency and the reliability of locking and unlocking the door body 2 by the door lock assembly 4 are improved.

In this embodiment, a first wheel shaft 723 extending in the left-right direction is fixed to the right side surface of the inner bag 1, and the amplifier wheel 72 is attached to the first wheel shaft 723. Preferably, the wheel surface of the second wheel body 722 of the amplification wheel 72 is formed with an arc-shaped stopper groove 7221, and a stopper shaft 724 extending in the longitudinal direction of the central axis of the second wheel body 722 is fitted into the stopper groove 7221 around the central axis of the second wheel body 722. In the initial state, the limiting shaft 724 is located at one end of the limiting groove 7221, and in the operating state of the heating plate 3, the limiting shaft 724 is located at the other end of the limiting shaft 724, so that the internal structure of the entire transmission mechanism 7 can be stabilized, and the second locking member 42 can be stably positioned in the locking state or the unlocking state. In this embodiment, the stopper shaft 724 is fixed to the right side surface of the inner bag 1 in the left-right direction. In addition, at least one counter weight guide block 711 (two in this embodiment) is hung at the interval on the transmission rope 71 between above-mentioned amplification wheel 72 and the above-mentioned first control by temperature change deformation 5 to can lead transmission rope 71, make this transmission rope 71 can better pull above-mentioned second latch fitting 42, avoid the kinetic energy loss.

Further, the guide pulley 73 is wound with the driving cord 71 such that the driving cord 71 extends in the moving direction of the first lock 41, and the distance between the guide pulley 73 and the second end of the driving cord 71 is shorter than the amplification pulley 72. Through leading wheel 73 can make driving rope 71 better transmit to second latch fitting 42, especially can better stimulate second latch fitting 42 and make second latch fitting 42 and first latch fitting 41 unblock smoothly when first temperature control deformation 5 contracts with cold. In this embodiment, the driving rope 71 is guided by the guide wheel 73 to move vertically from the front-back horizontal movement to the up-down vertical movement. A second wheel shaft 731 extending in the left-right direction is fixed to the right side surface of the inner container 1, and the guide wheel 73 is attached to the second wheel shaft 731.

The first locking element 41 and the second locking element 42 may have various specific implementation structures, and in this embodiment, preferably, the first locking element 41 and the second locking element 42 are both of a block structure, and the first locking element 41 is provided with a locking hole 411, and the second locking element 42 is provided with a locking block 421 that can be inserted into the locking hole 411 in a protruding manner. The detachable connection between the first locking piece 41 and the second locking piece 42 can be realized by the insertion of the locking piece 421 and the locking hole 411, and the locking between the first locking piece 41 and the second locking piece 42 is further realized. Further, the first locking piece 41 is fixed on the inner surface of the door body 2 and extends along the front-back direction, the second locking piece 42 extends vertically and can move vertically under the driving of the transmission mechanism 7, a locking bar 420 extending horizontally forward is protruded at the front end of the second locking piece 42, the locking piece 421 is protruded at the top of the locking bar 420, in an initial state, the first locking piece 41 is located above the locking piece 421, and the locking hole 411 of the first locking piece 41 is opposite to the locking piece 421 in the up-down direction. In this way, the second locking piece 42 moves up and down, so that the relative motion between the locking block 421 on the second locking piece 42 and the locking hole 411 of the first locking piece 41 can be realized, and the locking and unlocking of the first locking piece 41 and the second locking piece 42 can be further realized.

Still further, the periphery of the opening of the inner container 1 is vertically surrounded by a surface lining board 11, and the surface lining board 11 is provided with a guide opening 111 for the first locking piece 41 to penetrate through and move back and forth, so that the first locking piece 41 can be limited, and the first locking piece 41 can be better locked with the second locking piece 42. In this embodiment, the upper end of the tension spring is connected to the fixedly installed mounting seat 81, and the lower end is connected to the top of the second locking member 42. Thus, the tension spring can stably tension the second locking piece 42 in the initial state and make the second locking piece 42 always have a tendency to move upward to be locked with the first locking piece 41, and the second locking piece 42 can be stably in the state of being locked with the first locking piece 41 in the operating state of the heating pan 3. Specifically, the mounting seat 81 is fixed to an upper surface of the upper mounting plate.

Further, the second locking member 42 is provided with a guide protrusion 422, and the guide protrusion 422 is inserted into the vertically extending guide rail 43 and can move up and down along the guide rail 43. Therefore, the second locking piece 42 can move up and down smoothly, the locking block 421 on the second locking piece 42 can move relative to the locking hole 411 of the first locking piece 41 stably, and the reliability of locking the door body 2 is further improved.

Example 2:

as shown in fig. 5, unlike embodiment 1, the guide chute 311 is fitted with a second temperature-controlled deformable member 6 that is heat-shrinkable and cold-expandable, and the first temperature-controlled deformable member 5 is wound around the second temperature-controlled deformable member 6. Heating plate 3 during operation, first control by temperature change shape change 5 extends because of the intensification, and second control by temperature change shape change 6 contracts because of the intensification simultaneously, and then first control by temperature change shape change 5 after the thermal expansion moves for second control by temperature change shape change 6, and makes the length that stretches out heating plate 3 part further increase on its thermal expansion's basis to can further reduce the straining force to second latch fitting 42. The second temperature-controlled deformation member 6 is made of a heat-shrinkable and cold-expandable metal material, such as bismuth or an alloy thereof. Preferably, the cross section of the second temperature-controlled deformation member 6 is irregular, so that the phase transformation amount of the second temperature-controlled deformation member 6 can be increased.

Further, the second temperature-controlled deformable member 6 has a string structure extending in the longitudinal direction of the inner-ring heating pipe 31. Like this heating plate 3 during operation, second control by temperature change shape change 6 can be evenly along its length direction shrink to make the first control by temperature change shape change 5 after the thermal expansion can steadily move and make the length that stretches out heating plate 3 part evenly increase for second control by temperature change shape change 6, thereby can steadily realize the locking between second latch 42 and the first latch 41.

Claims

1. The utility model provides a steam culinary art device with lock door function, the power distribution box comprises a box body, inner bag (1) of setting in this box and be used for the lid to close door body (2) on the front side opening of this inner bag (1), be provided with heating plate (3) on the diapire of above-mentioned inner bag (1), this heating plate (3) include disk body (30) and set up the heating pipe on this disk body (30), this heating pipe includes inner circle heating pipe (31) and encloses outer lane heating pipe (32) of establishing outside this inner circle heating pipe (31), a serial communication port, still include outer lane heating pipe (32) outside this inner circle heating pipe (31), a serial communication port, still include

The door lock assembly (4) is used for locking the door body (2) on an opening of the inner container (1) and comprises a first locking piece (41) arranged on the door body (2) and a second locking piece (42) arranged on the box body or the inner container (1),

a first temperature control deformation piece (5) which is arranged on the inner ring heating pipe (31) of the heating plate (3) and can exchange heat with the inner ring heating pipe (31),

a transmission mechanism (7) for linking the first temperature-controlled deformation member (5) and the second locking member (42), and

an elastic restoring member (8) having one end connected to one end of the second locking member (42);

and, in the initial state, the above-mentioned elasticity resets the one end that the spare (8) deforms and applies the elastic tension to the above-mentioned second latch fitting (42), and the above-mentioned first temperature control deformation spare (5) through the other end of the above-mentioned second latch fitting (42) of straining of above-mentioned drive mechanism (7), and this straining force is greater than or equal to the elastic tension that the above-mentioned elasticity resets the spare (8) and act on the deformation spare (5) of this first temperature control, above-mentioned first latch fitting (41) and second latch fitting (42) break away from each other, and the above-mentioned elasticity resets the spare (8) and makes the second latch fitting (42) have the trend of moving towards the first latch fitting (41) and linking to each other with this first latch fitting (41), and under the working condition of heating plate (3), the above-mentioned first temperature control deformation spare (5) deforms and loosens above-mentioned second latch fitting (42), above-mentioned first latch fitting (41) and second latch fitting (42) can be taken off and connect, the above-mentioned elasticity resets the spare (8) in the natural state.

2. The steaming cooking device with door locking function according to claim 1, wherein the first temperature-controlled deformation member (5) is a wire structure, one end of the first temperature-controlled deformation member (5) is fixed to the inner-ring heating pipe (31) of the heating plate (3), and the other end is connected to the transmission mechanism (7).

3. The steaming cooking device with door-locking function according to claim 2, wherein the first temperature-controlled deformation member (5) extends along the length direction of the inner-ring heating pipe (31), and the first temperature-controlled deformation member (5) can move along the length direction of the inner-ring heating pipe (31) in a deformed state of the first temperature-controlled deformation member (5).

4. The steaming cooking device with door locking function according to claim 3, wherein the inner-ring heating pipe (31) is provided with a guide sliding groove (311) extending along a length direction thereof, and the first temperature-controlled deformation member (5) is fitted in the guide sliding groove (311) and can slide back and forth along the guide sliding groove (311).

5. The steaming cooking device with door locking function as claimed in claim 4, wherein the guide chute (311) is embedded with a second temperature-controlled deformable member (6) which is heat-shrinkable and cold-expandable, and the first temperature-controlled deformable member (5) is wound around the second temperature-controlled deformable member (6).

6. The steaming cooking device with door-locking function according to claim 5, wherein the second temperature-controlled deformation member (6) is a string structure extending in a length direction of the inner-ring heating pipe (31).

7. The steaming cooking device with door-locking function according to any one of claims 2 to 6, wherein the transmission mechanism (7) includes a transmission rope (71), a first end of the transmission rope (71) is connected to one end of the first temperature-controlled deformation member (5) and a second end is connected to the second locking member (42).

8. The steaming cooking device with a door locking function according to claim 7, wherein the transmission mechanism (7) further comprises an amplifying wheel (72), the amplifying wheel (72) comprises a first wheel body (721) and a second wheel body (722) which are coaxially arranged and have a larger wheel diameter than the first wheel body (721), and the transmission rope (71) is sequentially wound around the first wheel body (721) and the second wheel body (722) along the direction from the first end to the second end thereof.

9. The steaming cooking device with door locking function as claimed in claim 8, wherein at least one weight guide block (711) is hung on the transmission rope (71) between the amplifying wheel (72) and the first temperature-controlled deformation member (5) at an interval.

10. The steaming cooking device with door locking function according to claim 8, wherein the wheel surface of the second wheel body (722) of the amplifying wheel (72) is provided with an arc-shaped limiting groove (7221), the limiting groove (7221) is centered on the central axis of the second wheel body (722) and is embedded with a limiting shaft (724) extending along the length direction of the central axis of the second wheel body (722),

in the initial state, the limit shaft (724) is located at one end of the limit groove (7221), and in the working state of the heating plate (3), the limit shaft (724) is located at the other end of the limit shaft (724).

11. The steaming cooking device with door-locking function according to claim 8, wherein the transmission mechanism (7) further comprises a guide wheel (73) around which the transmission cord (71) is wound and which enables the transmission cord (71) to extend in the moving direction of the first locking member (41), and the guide wheel (73) is spaced from the second end of the transmission cord (71) by a distance smaller than the amplification wheel (72).

12. The steaming cooking device with door locking function according to any one of claims 1 to 6, wherein the first locking member (41) and the second locking member (42) are both of a block structure, and the first locking member (41) is formed with a locking hole (411), and the second locking member (42) is formed with a locking piece (421) which can be inserted into the locking hole (411) in a protruding manner.

13. The steaming cooking device with door locking function according to claim 12, wherein the first locking member (41) is fixed on the inner surface of the door body (2) and extends in the front-rear direction, the second locking member (42) extends vertically and can move vertically under the driving of the transmission mechanism (7), a locking bar (420) extending horizontally forward is protruded at the front end of the second locking member (42), the locking piece (421) is protruded at the top of the locking bar (420), in an initial state, the first locking member (41) is located above the locking piece (421), and the locking hole (411) of the first locking member (41) is aligned with the locking piece (421) up and down.

14. The steaming cooking device with door-locking function according to claim 13, wherein the elastic restoring member (8) is a vertically extending tension spring having an upper end connected to the fixedly disposed mounting seat (81) and a lower end connected to the top of the second locking member (42).

15. The steaming cooking device with door locking function according to claim 13, wherein the second locking member (42) is provided with a guide projection (422) protruded therefrom, and the guide projection (422) is fitted into a vertically extending guide rail (43) and can be moved up and down along the guide rail (43) back and forth.