CN111395883A

CN111395883A - Heating electric appliance and door lock

Info

Publication number: CN111395883A
Application number: CN202010207402.4A
Authority: CN
Inventors: 陈堪鑫; 李丰; 梁兆邦
Original assignee: Guangdong Galanz Enterprises Co Ltd; Guangdong Galanz Microwave Electric Manufacturing Co Ltd
Current assignee: Guangdong Galanz Enterprises Co Ltd; Guangdong Galanz Microwave Electric Manufacturing Co Ltd
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2020-07-10
Anticipated expiration: 2040-03-23
Also published as: CN111395883B

Abstract

The invention relates to a heating electric appliance and a door lock, wherein a moving piece is provided with a first locking part and can reciprocate along a preset direction; the locking piece is provided with a second locking part and a third locking part which are arranged at intervals, and the second locking part and the third locking part can be matched with the first locking part in a locking way; the first switch assembly is used for driving the moving piece to move along a preset direction so as to separate the first locking part from the second locking part; the reset piece is used for enabling the first locking part to be in locking fit with the third locking part after the first locking part is separated from the second locking part; the second switch component is used for enabling the moving piece to move along the preset direction, and enabling the first locking part to be separated from the third locking part. Heating electrical apparatus and lock, the operation of two steps need be carried out in opening of the relative box of apron, even the maloperation appears and has carried out the operation of opening the door of one of them step, can not open the apron yet, factor of safety is high, is difficult to take place incident such as scald.

Description

Heating electric appliance and door lock

Technical Field

The invention relates to the technical field of door locks, in particular to a heating electric appliance and a door lock.

Background

The heating electric appliance is increasingly used in life because the heating electric appliance can quickly and conveniently heat food and other articles. Taking a microwave oven as an example, the microwave can be used to heat food quickly and uniformly. The door body cannot be opened at will in the heating process because the temperature inside the microwave oven is higher. Traditional lock only needs pulling the door body can be opened the relative box of door body, and when the maloperation appeared, especially child pulled the door body by accident, incident such as scald takes place easily.

Disclosure of Invention

Accordingly, it is necessary to provide a heating appliance and a door lock for solving the problem of safety accidents such as scalding.

In one aspect, there is provided a door lock including: the moving piece is provided with a first locking part and can reciprocate along a preset direction; the locking piece is provided with a second locking part and a third locking part which are arranged at intervals, and the second locking part and the third locking part can be in locking fit with the first locking part; the first switch component is used for driving the moving piece to move along a preset direction, so that the first locking part is separated from the second locking part; the resetting piece is used for enabling the first locking part to be in locking fit with the third locking part after the first locking part is separated from the second locking part; and the second switch component is used for enabling the moving piece to move along a preset direction, so that the first locking part is separated from the third locking part.

In one embodiment, the first switch assembly includes a first rotating member and a first actuating member for rotating the first rotating member, and the first rotating member is capable of rotating to drive the moving member to move along a predetermined direction.

In one embodiment, the first actuating member includes a pressing key and a first elastic resetting member for resetting the pressing key, and one end of the pressing key can drive the first rotating member to rotate.

In one embodiment, the first rotating member is disposed below the moving member, the first rotating member is provided with a first force application portion, and when the first rotating member rotates, the first force application portion enables the moving member to move in a vertically upward direction against the acting force of the reset member.

In one embodiment, the second switch assembly includes a second rotating member and a second actuating member for rotating the second rotating member, and the second rotating member can drive the moving member to move in a predetermined direction when rotating.

In one embodiment, the second rotating member includes a rotating body and a second force application portion disposed on an outer wall of the rotating body, and the second actuating member includes a handle connected to the rotating body, and the handle can drive the rotating body to rotate, so that the second force application portion can drive the moving member to move along a preset direction.

In one embodiment, the door lock further comprises a second elastic reset member for resetting the rotor.

In one embodiment, the door lock further comprises a limiting member for limiting the rotation angle of the rotating body.

In one embodiment, the first locking portion includes a door hook, the second locking portion includes a first limiting block capable of being in limiting fit with the door hook, the third locking portion includes a second limiting block capable of being in limiting fit with the door hook, the first limiting block is horizontally arranged, and the second limiting block is obliquely arranged towards the upper side along the door closing direction relative to the first limiting block.

On the other hand, the heating electric appliance comprises a door body and a box body, wherein the door body and the box body can be locked through the door lock.

In the heating electric appliance and the door lock of the embodiment, when the cover plate of the door body is in a door closing state, the first locking part of the moving member is in locking fit with the second locking part of the locking member, namely, the moving member and the locking member are in the first locking state, so that the cover plate cannot be opened relative to the box body; when the door needs to be opened, the first switch component is utilized to enable the moving piece to move along the preset direction, so that the first locking part is driven to move, and the first locking part is separated from the second locking part of the locking piece; simultaneously, first locking portion and second locking portion separation back for the moving member has the trend that resets under the effect of the reset force of piece that resets, thereby makes first locking portion remove to cooperate with third locking portion locking, and moving member and locking piece are in second locking state promptly. Even if the maloperation has started first switch module, because the first locking part of moving member still cooperates with the third locking part locking of locking piece, also still can't realize opening the door, avoid taking place incident such as scald. When the apron is further opened to needs, utilize the second switch module to make the moving member continue to move along predetermineeing the direction to drive first locking portion and continue to move, and then make first locking portion and third locking portion phase separation, thereby make moving member and locking member be in complete separation state, thereby can be free open the apron. And, when the apron is in the state of closing the door, even the maloperation has started the second switch, because the first locking part of moving member and the second locking part locking cooperation of locking piece to also can't realize opening the door.

Drawings

Fig. 1 is a schematic structural diagram of a heating appliance in a door-closed state according to an embodiment;

FIG. 2 is a schematic structural diagram of the heating appliance of FIG. 1 in a door-open state;

FIG. 3 is an exploded view from a perspective of a second switch assembly of the heating appliance of FIG. 1;

FIG. 4 is a schematic diagram of a first switch assembly of the heating appliance of FIG. 1;

FIG. 5 is a schematic structural view of the first rotating member of the first switch assembly of the heating appliance of FIG. 4 at rest;

FIG. 6 is a schematic structural view illustrating the first rotating member of the first switch assembly of the heating appliance of FIG. 4 rotating;

FIG. 7 is an assembly view of a second switch assembly of the heating appliance of FIG. 1;

FIG. 8 is an enlarged partial view of a portion of a second switch assembly D of the heating appliance of FIG. 7;

FIG. 9 is an exploded view of the second switch assembly of the heating appliance of FIG. 1 from another perspective;

FIG. 10 is an enlarged partial view of a portion of a second switch assembly E of the heating appliance of FIG. 9;

FIG. 11 is an assembly view of the second switch assembly and the moving member and the locking member of the heating appliance of FIG. 1;

FIG. 12 is an enlarged view of a portion of the second switch assembly of the heating appliance of FIG. 11 in a resting state;

FIG. 13 is an enlarged view of a portion of the second switch assembly of the heating appliance of FIG. 11 during rotation;

fig. 14 is a partially enlarged view of the heating appliance of fig. 11 after completion of rotation of the second switch assembly.

Description of reference numerals:

100. the movable member, 110, the first locking portion, 111, the door hook, 120, the fourth locking portion, 200, the locking member, 210, the second locking portion, 211, the first stopper, 2111, the farthest end, 220, the third locking portion, 221, the second stopper, 2211, the uppermost end, 230, the fifth locking portion, 300, the first switch assembly, 310, the first rotating member, 320, the first actuating member, 321, the pressing key, 322, the first elastic resetting member, 330, the first force application portion, 400, the resetting member, 500, the second switch assembly, 510, the second actuating member, 520, the rotating member, 530, the second force application portion, 540, the second elastic resetting member, 550, the limiting member, 1100, the outer plate, 1200, the inner plate, 1300, the cover plate, 1310, the strip-shaped groove, 2000, and the box body.

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 invention 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 invention.

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.

It should also be understood that in explaining the connection relationship or the positional relationship of the elements, although not explicitly described, the connection relationship and the positional relationship are interpreted to include an error range which should be within an acceptable deviation range of a specific value determined by those skilled in the art. For example, "about," "approximately," or "substantially" may mean within one or more standard deviations, without limitation.

Referring to fig. 1 to 4, in one embodiment, a door lock is provided, which includes a moving member 100, a locking member 200, a first switch assembly 300, a resetting member 400, and a second switch assembly 500. So, when needing to open the door operation, utilize first switch module 300 just can remove the first locking state of moving member 100 and locking piece 200, utilize second switch module 500 just can remove the second locking state of moving member 100 and locking piece 200 to make opening of the relative box 2000 of apron 1300 of door body need carry out the operation of two steps, even the maloperation has appeared and has carried out the operation of opening the door of one of them step, also can not open apron 1300, factor of safety is high, be difficult to take place incident such as scald.

Wherein, the moving member 100 is provided with a first locking portion 110, and the moving member 100 can reciprocate along a preset direction; the locking piece 200 is provided with a second locking part 210 and a third locking part 220 which are arranged at intervals, and both the second locking part 210 and the third locking part 220 can be locked and matched with the first locking part 110; the first switch assembly 300 is configured to drive the moving member 100 to move along a preset direction, so that the first locking portion 110 is separated from the second locking portion 210; the reset member 400 is used for enabling the first locking part 110 to be locked and matched with the third locking part 220 after the first locking part 110 is separated from the second locking part 210; the second switch assembly 500 is used for moving the moving member 100 along a predetermined direction, so that the first locking portion 110 is separated from the third locking portion 220. In this way, when the cover 1300 of the door body is in the door closing state, the first locking portion 110 of the moving member 100 is in locking engagement with the second locking portion 210 of the locking member 200, that is, the moving member 100 and the locking member 200 are in the first locking state (as shown in fig. 5), so that the cover 1300 cannot be opened relative to the box 2000; when the door needs to be opened, the first switch assembly 300 is used to move the moving member 100 along a preset direction, so as to drive the first locking part 110 to move, and further separate the first locking part 110 from the second locking part 210 of the locking member 200; meanwhile, after the first locking portion 110 is separated from the second locking portion 210, under the action of the restoring force of the restoring member 400, the moving member 100 tends to be restored, so that the first locking portion 110 moves to be in locking engagement with the third locking portion 220 (as shown in fig. 6), that is, the moving member 100 and the locking member 200 are in the second locking state. Even if the first switch assembly 300 is started by misoperation, the first locking part 110 of the moving member 100 is still in locking fit with the third locking part 220 of the locking member 200, so that the door opening still cannot be realized, and safety accidents such as scalding are avoided. When the cover plate 1300 needs to be further opened, the second switch assembly 500 is utilized to enable the moving member 100 to continue to move along the preset direction, so that the first locking portion 110 is driven to continue to move, the first locking portion 110 is separated from the third locking portion 220, the moving member 100 and the locking member 200 are enabled to be in a completely separated state, and the cover plate 1300 can be freely opened. When the cover 1300 is in the closed state, even if the second switch is actuated by an erroneous operation, the first locking portion 110 of the moving member 100 is locked and engaged with the second locking portion 210 of the locking member 200, and thus the door cannot be opened.

It should be noted that the moving member 100 may be provided as a moving rod, a moving frame, or a moving block. The locking member 200 may be configured in a bar shape, a block shape or a plate shape; the locking member 200 may be fastened to the box 2000 by means of clamping, riveting or welding, or may be directly integrated with the box 2000. The restoring member 400 may be in the form of elastic restoration, for example, the restoring member 400 may be provided as an elastic element such as a first spring.

The first switch assembly 300 drives the moving member 100 to move along a preset direction, can be realized in a jacking mode, and can also be realized in a rotating or swinging mode, and only the requirement that the moving member 100 can move along the preset direction is met, so that the first locking part 110 and the second locking part 210 can be separated.

As shown in fig. 4 to 6, in an embodiment, the first switch assembly 300 includes a first rotating member 310 and a first actuating member 320 for rotating the first rotating member 310, and the first rotating member 310 can rotate to drive the moving member 100 to move along a predetermined direction. In this way, the first actuating member 320 is utilized to rotate the first rotating member 310, so as to drive the moving member 100 to move along the preset direction, and further, the first locking portion 110 correspondingly moves, so that the first locking portion 110 is separated from the second locking portion 210. The first rotating member 310 may be a rotating plate, a rotating frame, or the like, and is rotatably connected to the door body by a rotating shaft or a hinge.

The first actuating member 320 can apply an acting force to the first rotating member 310 by pressing, turning or stretching, and only needs to rotate the first rotating member 310 to drive the moving member 100 to move.

As shown in fig. 4, in an embodiment, the first actuating member 320 includes a pressing key 321 and a first elastic resetting member 322 for resetting the pressing key 321, and one end of the pressing key 321 can drive the first rotating member 310 to rotate. Thus, a force is applied to the pressing key 321, and the pressing key 321 moves against the elastic force of the first elastic resetting piece 322, so that one end of the pressing key 321 close to the first rotating piece 310 pushes the first rotating piece 310 to rotate; after the applied acting force disappears, the pressing key 321 resets under the action of the first elastic resetting piece 322, so that the next use is convenient, and the operation is simple and convenient.

Specifically, the pressing key 321 includes a pressing plate (not labeled) and a transmission shaft (not labeled) connected to the pressing plate, and the first elastic restoring element 322 includes a second spring (not labeled) sleeved on the transmission shaft. As shown in fig. 4, the door body includes an outer plate 1100 and an inner plate 1200 connected in a form of clamping or screwing, the outer plate 1100 and the inner plate 1200 are matched to form a first mounting cavity (not labeled), the inner plate 1200 can be fixedly arranged on the box body 2000 in a mode of clamping or screwing, and the outer plate 1100 is provided with a mounting groove (not labeled) for mounting the pressing plate and the second spring and a first through hole (not labeled) for communicating the first mounting cavity and the mounting groove. The first rotating member 310 includes a flipping plate connected to the outer panel 1100 through a rotation shaft. Exerting pressing force on the pressing plate, the pressing plate overcomes the elasticity of the second spring and compresses the second spring, so that one end of the transmission shaft penetrates through the first through hole and extends into the first installation cavity until one end of the transmission shaft abuts against the turnover plate, the turnover plate rotates and transmits acting force to the moving piece 100 (as shown in fig. 6), the moving piece 100 moves along the preset direction, and the first locking portion 110 is separated from the second locking portion 210. When the pressing force disappears or weakens, the pressing plate resets under the action of the elastic resetting force of the second spring; preferably, the pressing plate can be kept flat with the surface of the outer plate 1100 after being reset, so that not only can the appearance quality be improved, but also the pressing plate is prevented from protruding out of the outer plate 1100 to cause misoperation.

The moving direction of the moving member 100 can be flexibly adjusted according to actual use requirements or design requirements, for example, the moving member can move in the vertical direction, can also move in the horizontal direction, and only the requirement that the moving member 100 and the locking member 200 can be switched between the first locking state and the second locking state is met.

As shown in fig. 4 to 6, in one embodiment, the first rotating member 310 is disposed below the moving member 100, the first rotating member 310 is provided with a first force application portion 330, and when the first rotating member 310 rotates, the first force application portion 330 can move the moving member 100 in a vertically upward direction against the action of the reset member 400. Thus, the first rotating member 310 drives the first force application portion 330 to rotate during the rotation process, and the first force application portion 330 transmits the acting force to the moving member 100 during the rotation process, so that the moving member 100 vertically moves upwards. The first force application portion 330 may be configured as a bar, a block, or a plate, and only needs to abut against the moving member 100 to move the moving member 100.

Specifically, the first rotating member 310 includes a flip plate (not labeled) connected to the outer plate 1100 through a rotating shaft, and the first force application portion 330 includes a force application bar (not labeled) disposed perpendicular to the flip plate. When the returning face plate overturns upwards under the butt effect of transmission shaft, the application of force strip can be timely upwards overturn to contradict with moving member 100 to promote moving member 100 to move to vertical upward direction.

It should be noted that, in order to ensure that the first force application portion 330 can reliably transmit the acting force to the moving member 100 and move the moving member 100, a corresponding structure capable of cooperating with the first force application portion 330 may be further disposed at a position of the moving member 100 close to the first force application portion 330, for example, an abutting strip (not labeled) or an abutting block (not labeled) capable of abutting against and cooperating with the force application strip is disposed on the moving member 100.

The second switch assembly 500 drives the moving member 100 to move along a preset direction, and can be realized in a jacking mode or in a rotating or swinging mode, and the moving member 100 can move along the preset direction only by meeting the requirement, so that the first locking part 110 and the third locking part 220 can be separated.

As shown in fig. 7 to 10, in one embodiment, the second switch assembly 500 includes a second rotating member (not labeled) and a second actuating member 510 for rotating the second rotating member, wherein the second rotating member can drive the moving member 100 to move in a predetermined direction when rotating. Thus, the second actuating member 510 is used to rotate the second rotating member, so as to drive the moving member 100 to move along the preset direction, and further to move the first locking portion 110 correspondingly, so as to separate the first locking portion 110 from the third locking portion 220, and further to completely separate the moving member 100 from the locking member 200, so that the door body can be opened relative to the box 2000.

The second rotating part can be arranged into a rotating cylinder, a rotating frame and other structures and is connected with the door body in a rotating mode through a rotating shaft or a hinged mode. The second actuating member 510 can apply the acting force to the second rotating member by pressing, turning or stretching, and only needs to satisfy the requirement that the second rotating member can rotate to drive the moving member 100 to move.

As shown in fig. 10, in an embodiment, the second rotating member includes a rotating body 520 and a second force application portion 530 disposed on an outer wall of the rotating body 520, and the second actuating member 510 includes a handle connected to the rotating body 520 by a screw connection, a clamping connection, or the like, and the handle can drive the rotating body 520 to rotate, so that the second force application portion 530 can drive the moving member 100 to move along a predetermined direction. So, when the handle rotated, can drive rotor 520 and rotate around corresponding axis to drive second application of force portion 530 and rotate, second application of force portion 530 rotates the in-process and transmits corresponding effort to moving member 100, thereby can drive moving member 100 and remove along predetermineeing the direction, and then make first locking portion 110 and third locking portion 220 separate. Among them, the rotating body 520 may be provided in a cylindrical or block shape. The second force application part 530 may be formed in a bar shape, a block shape, or a plate shape, and only needs to transmit the acting force to the moving member 100, so that the moving member 100 can move in the preset direction.

Specifically, rotor 520 sets up to rotating the section of thick bamboo (not mark), and the door body still includes and adopts articulated mode such as the rotation of being connected apron 1300 with box 2000, and apron 1300 is equipped with the second installation cavity (not mark). Rotatable coupling is realized through the form that pivot and apron 1300 are connected to the rotation section of thick bamboo, and the rotation section of thick bamboo sets up in the second installation intracavity, and apron 1300 is equipped with the second through-hole that is used for supplying the handle to pass, and the handle passes behind the second through-hole and the cooperation of pegging graft with the rotation section of thick bamboo. The second force application part 530 includes a force application block disposed on an outer wall of the rotation cylinder. When the handle is rotated, the rotating cylinder synchronously rotates around the axis of the rotating shaft, the force application block correspondingly rotates around the axis of the rotating shaft, and the force application block collides with the moving piece 100 in the rotating process, so that the moving piece 100 is driven to move along the preset direction, and the first locking part 110 is separated from the third locking part 220; at this time, the cover plate 1300 can be opened relative to the case 2000 only by pulling the handle.

More specifically, the rotary cylinder is disposed at one side of the moving member 100, and during the rotation process of the rotary cylinder (clockwise rotation or counterclockwise rotation), the force application block moves upward to abut against the moving member 100, so that the moving member 100 continues to move upward (as shown by the arrow in fig. 10), and the first locking portion 110 is separated from the third locking portion 220.

It should be noted that, in order to ensure that the second force application portion 530 can reliably transmit the acting force to the moving member 100 and move the moving member 100, a structure capable of being engaged with the second force application portion 530 may be further disposed at a corresponding position of the moving member 100, for example, an abutting protrusion (not labeled) capable of being engaged with the force application block is disposed on the moving member 100. The moving member 100 is disposed in the second installation cavity, and the cover plate 1300 is provided with a strip-shaped groove 1310 for the first locking portion 110 to pass through; in order to ensure that the moving member 100 can accurately and reliably move along the preset direction, the inner wall of the second mounting cavity can be further provided with a corresponding guide groove or guide rail to be matched with the moving member 100 in a guiding manner, so that the moving member 100 can be guided to move, and the moving member 100 can be accurately moved.

As shown in fig. 8 and 10, in one embodiment, the door lock further includes a second elastic restoring member 540 for restoring the rotating body 520. In this way, the second elastic restoring member 540 can restore the rotating body 520, thereby facilitating the next operation. Meanwhile, the second force application portion 530 is no longer applied to the moving member 100, and under the action of the reset member 400, the moving member 100 correspondingly moves a certain distance along the opposite direction (for example, the vertical downward direction) of the preset direction, so that the first locking portion 110 can smoothly and sequentially realize locking cooperation with the third locking portion 220 and the second locking portion 210 during door closing operation, and the cover plate 1300 is closed. The second elastic reset piece 540 can be set as a torsion spring (the torsion spring sleeve is arranged on the rotating shaft, two support legs of the torsion spring abut against the inner wall of the rotating cylinder), and also can be set as a third spring (one end of the third spring is connected with the outer wall of the rotating cylinder, the other end of the third spring is connected with the inner wall of the second installation cavity, and the third spring can provide upward tensile force to reset the rotating cylinder).

As shown in fig. 8, in one embodiment, the door lock further includes a stopper 550 for limiting a rotation angle of the rotor 520. Thus, the limiting member 550 is used to limit the rotation angle of the rotating body 520, so as to avoid the second elastic resetting member 540 from being out of work or fatigue due to the transitional rotation of the rotating body 520, and ensure the second elastic resetting member 540 to work continuously and reliably; the limit member 550 can also be used to limit the reset of the rotator 520, so that after the rotator 520 is reset, the second elastic member can also apply a certain reset force to the rotator 520, thereby ensuring that the rotator 520 can be quickly reset; meanwhile, the limiting member 550 can be used to limit the transitional rotation and the resetting of the rotating body 520 at the same time. The limiting member 550 may be configured as a limiting block or a limiting baffle, and the limiting block or the limiting baffle may be connected to the inner wall of the second installation cavity. The limiting member 550 may be disposed at a side of the rotating body 520, and when the rotating body 520 rotates by a certain angle, the limiting member 550 may be used to interfere with the rotation of the rotating body 520, thereby achieving the limiting. Of course, the rotation angle of the second force application part 530 can also be limited by the limiting part 550 to achieve the effect of limiting the rotation angle of the rotating body 520.

The locking cooperation of first locking portion 110 and second locking portion 210 to and the locking cooperation of first locking portion 110 and third locking portion 220, can realize through latch hook and spring bolt complex form, also can realize through the spacing complex form of pothook and stopper, only need satisfy can realize moving member 100 and the fixed connection of locking piece 200.

As shown in fig. 11 to 14, in addition to any of the above embodiments, the first locking portion 110 includes the door hook 111. The second locking portion 210 includes a first stopper 211 capable of being in limit fitting with the door hook 111, and the third locking portion 220 includes a second stopper 221 capable of being in limit fitting with the door hook 111. So, utilize door hook 111 respectively with the spacing cooperation of first stopper 211 and second stopper 221 to realize moving member 100 and the switching of locking piece 200 on first locking state and second locking state, make the apron 1300 of door body open the operation that needs to carry out two steps, even the maloperation appears and carried out the operation of opening the door of one of them step, also can not open apron 1300, factor of safety is high, be difficult to take place incident such as scald. Further, the first stopper 211 is disposed horizontally, and the second stopper 221 is disposed obliquely upward relative to the first stopper 211 along the door closing direction. Thus, when the door needs to be closed, the cover plate 1300 is pushed to move towards the direction close to the box body 2000, the door hook 111 correspondingly moves towards the direction close to the box body 2000 to contact with the second limit block 221, and the cover plate 1300 is continuously pushed due to the inclined arrangement of the second limit block 221 towards the upper side, so that the door hook 111 overcomes the reset force of the reset piece 400 and moves towards the inclined upper side. After the door hook 111 passes through the uppermost 2211 position of the second stopper 221, under the action of the reset force of the reset piece 400, the door hook 111 moves downwards, so that the door hook 111 can be in spacing fit with the second stopper 221 to enable the moving piece 100 and the locking piece 200 to be in the second locking state. When the cover plate 1300 is pushed continuously, the door hook 111 moves towards the direction close to the box body 2000 along the horizontal direction under the guidance of the first limit block 211 until the door hook 111 passes over the farthest end 2111 of the first limit block 211, and under the action of the reset force of the reset piece 400, the door hook 111 moves downwards, so that the door hook 111 can be in limit fit with the first limit block 211 to enable the moving piece 100 and the locking piece 200 to be in the first locking state.

In one embodiment, the moving member 100 is provided as a moving rod, the moving rod is provided in the second mounting cavity, and the moving rod is in guiding engagement with the inner wall of the second mounting cavity, so that the moving rod can reciprocate in the vertical direction. The upper end of the moving rod is provided with a hook, and the cover plate 1300 is provided with a strip-shaped groove 1310 for the hook to extend out. One end of the first spring is connected with the inner wall of the second mounting cavity, the other end of the first spring is connected with the moving rod, and when the moving rod moves upwards vertically, the first spring is stretched to apply downward elastic force to the moving rod. Locking piece 200 sets up to the locking frame, and on the locking frame adopted the screw connection mode to be fixed in box 2000, the locking was put up and is equipped with the first stopper 211 that the level set up, is equipped with on the first stopper 211 along the second stopper 221 that the door closing direction set up towards the top slope. The first rotating member 310 includes a turning plate connected to the outer plate 1100 through a rotating shaft, the first force application portion 330 includes a force application bar connected to the turning plate, the force application bar is perpendicular to the turning plate, and the inner plate 1200 is provided with a straight groove (not labeled) for the force application bar to pass through. When the returning face plate upwards overturns under the butt effect of transmission shaft, the application of force strip can be timely upwards overturns, and the application of force strip is contradicted with the carriage release lever after passing the straight flute to promote the carriage release lever to overcome the pulling force of first spring and remove to vertical upward direction (as shown in fig. 12), and then make pothook and first stopper 211 separate, and, after the pothook crossed the distal end 2111 of first stopper 211, the pothook removed under the pulling force effect of first spring to with the spacing cooperation of second stopper 221 (as shown in fig. 13). When further rotating the handle, rotating a section of thick bamboo and rotating around the axis of rotation in step, the corresponding axis that revolutes the axle of application of force piece rotates, and application of force piece rotates the in-process and takes place to contradict with the carriage release lever to further drive the vertical rebound of carriage release lever orientation, and then make door hook 111 separate (as shown in fig. 14) with second stopper 221, thereby make carriage release lever and locking frame be in the detached state, only need stimulate the handle and can open the relative box 2000 of apron 1300.

As shown in fig. 11, in an embodiment, the moving member 100 is further provided with a fourth locking portion 120, the fourth locking portion 120 is disposed opposite to the first locking portion 110 at an interval, the locking member 200 is provided with a fifth locking portion 230, when the cover plate 1300 is in the door closing state, the first locking portion 110 is in locking engagement with the second locking portion 210, the fourth locking portion 120 is in locking engagement with the fifth locking portion 230, and the first switch assembly 300 is configured to drive the moving member 100 to move along a preset direction, so that the first locking portion 110 is separated from the second locking portion 210, and the fourth locking portion 120 is separated from the fifth locking portion 230. In this way, when the cover plate 1300 is in the closed state, the cover plate 1300 is closed more tightly by the locking engagement of the first locking portion 110 and the second locking portion 210, and the locking engagement of the fourth locking portion 120 and the fifth locking portion 230. The locking cooperation of the fourth locking portion 120 and the fifth locking portion 230 can be realized in a form of cooperation between the locking hook and the locking tongue, or in a form of cooperation between the locking hook and the limiting block, and only the requirement of realizing the fixed connection between the moving member 100 and the locking member 200 can be met.

As shown in fig. 1 and 2, in one embodiment, there is further provided a heating appliance, which includes a door body and a box 2000, wherein the door body and the box 2000 can be locked by the door lock of any of the above embodiments.

In the electric heating appliance of the above embodiment, when the cover plate 1300 of the door body is in the door closing state, the first locking portion 110 of the moving member 100 is in locking engagement with the second locking portion 210 of the locking member 200, that is, the moving member 100 and the locking member 200 are in the first locking state, so that the cover plate 1300 cannot be opened relative to the box body 2000; when the door needs to be opened, the first switch assembly 300 is used to move the moving member 100 along a preset direction, so as to drive the first locking part 110 to move, and further separate the first locking part 110 from the second locking part 210 of the locking member 200; meanwhile, after the first locking portion 110 is separated from the second locking portion 210, under the action of the resetting force of the resetting piece 400, the moving piece 100 tends to reset, so that the first locking portion 110 moves to be in locking fit with the third locking portion 220, that is, the moving piece 100 and the locking piece 200 are in the second locking state. Even if the first switch assembly 300 is started by misoperation, the first locking part 110 of the moving member 100 is still in locking fit with the third locking part 220 of the locking member 200, so that the door opening still cannot be realized, and safety accidents such as scalding are avoided. When the cover plate 1300 needs to be further opened, the second switch assembly 500 is utilized to enable the moving member 100 to continue to move along the preset direction, so that the first locking portion 110 is driven to continue to move, the first locking portion 110 is separated from the third locking portion 220, the moving member 100 and the locking member 200 are enabled to be in a completely separated state, and the cover plate 1300 can be freely opened. When the cover 1300 is in the closed state, even if the second switch is actuated by an erroneous operation, the first locking portion 110 of the moving member 100 is locked and engaged with the second locking portion 210 of the locking member 200, and thus the door cannot be opened.

The heating appliance may be an electric appliance such as a microwave oven, an electric rice cooker, or an electric kettle.

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

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. 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

1. A door lock, comprising:

the moving piece is provided with a first locking part and can reciprocate along a preset direction;

the locking piece is provided with a second locking part and a third locking part which are arranged at intervals, and the second locking part and the third locking part can be in locking fit with the first locking part;

the first switch component is used for driving the moving piece to move along a preset direction, so that the first locking part is separated from the second locking part;

the resetting piece is used for enabling the first locking part to be in locking fit with the third locking part after the first locking part is separated from the second locking part; and

and the second switch component is used for enabling the moving piece to move along a preset direction, so that the first locking part is separated from the third locking part.

2. The door lock of claim 1, wherein the first switch assembly includes a first rotating member and a first actuating member for rotating the first rotating member, the first rotating member being rotatable to move the moving member in a predetermined direction.

3. The door lock of claim 2, wherein the first actuating member includes a pressing key and a first elastic resetting member for resetting the pressing key, and one end of the pressing key can drive the first rotating member to rotate.

4. The door lock according to claim 2, wherein the first rotating member is provided below the moving member, the first rotating member is provided with a first force application portion, and when the first rotating member rotates, the first force application portion enables the moving member to move in a vertically upward direction against the force of the return member.

5. The door lock of any one of claims 1 to 4, wherein the second switch assembly includes a second rotating member and a second actuating member for rotating the second rotating member, and the second rotating member is capable of moving the moving member in a predetermined direction when rotated.

6. The door lock of claim 5, wherein the second rotating member includes a rotating body and a second force application portion disposed on an outer wall of the rotating body, and the second actuating member includes a handle connected to the rotating body, the handle being capable of rotating the rotating body so that the second force application portion is capable of driving the moving member to move in a predetermined direction.

7. The door lock of claim 6, further comprising a second elastic reset member for resetting the rotor.

8. The door lock according to claim 7, further comprising a stopper for limiting a rotation angle of the rotor.

9. The door lock according to any one of claims 1 to 4, wherein the first locking portion includes a door hook, the second locking portion includes a first stopper capable of engaging with the door hook in a limiting manner, the third locking portion includes a second stopper capable of engaging with the door hook in a limiting manner, the first stopper is disposed horizontally, and the second stopper is disposed obliquely upward in a door closing direction with respect to the first stopper.

10. An electric heating appliance comprising a door body and a cabinet which can be locked by a door lock according to any one of claims 1 to 9.