CN218953045U - Door lock and refrigerator with folding door - Google Patents

Abstract

The present utility model relates to a door lock and a refrigerator with stacked doors, wherein the door lock is configured to lock and unlock a second door relative to a first door, the door lock includes a first locking portion configured to be mounted to the first door, a second locking portion configured to be mounted to the second door, the second locking portion having a first position in which the second locking portion cooperates with the first locking portion to lock the second door relative to the first door, and a second position in which the second locking portion is disengaged from the first locking portion to unlock the second door relative to the first door, and a driving device configured to drive the second locking portion to move to effect switching of the second locking portion between the first position and the second position. The refrigerator comprises a first door, a second door parallel to the first door and the door lock, wherein a first locking part of the door lock is arranged on the first door, and a second locking part of the door lock is arranged on the second door.

Description

Door lock and refrigerator with folding door

Technical Field

The utility model relates to the technical field of door locks, in particular to a door lock and a refrigerator with stacked doors.

Background

With the continuous development of refrigerator technology, the variety of refrigerators is also increasing, for example, single-door refrigerators, multi-door refrigerators, french refrigerators, stacked-door refrigerators and other different refrigerators gradually appear in the home, wherein stacked-door refrigerators are popular with users due to high volume ratio, higher appearance and configuration and other reasons.

However, in the use process of the refrigerator with stacked doors, the situation that one door is influenced when the other door is opened and closed often occurs, for example, when the inner door is opened and the outer door is opened abnormally due to inertia and other reasons, the abnormal opening and closing situations not only influence the user experience, but also bring certain potential safety hazards.

It should be noted that the information disclosed in the background section of the present utility model is only for increasing the understanding of the general background of the present utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

The utility model provides a door lock and a refrigerator with stacked doors, which can effectively avoid abnormal opening and closing of the refrigerator door in the use process of the refrigerator with stacked doors.

According to one aspect of the present utility model, there is provided a door lock configured to lock and unlock a second door with respect to a first door, comprising:

a first locking portion configured to be mounted to the first door;

a second locking portion configured to be mounted to the second door, the second locking portion having a first position in which the second locking portion cooperates with the first locking portion to lock the second door relative to the first door, and a second position in which the second locking portion is disengaged from the first locking portion to unlock the second door relative to the first door; and

And the driving device is configured to drive the second locking part to move so as to realize the switching of the second locking part between the first position and the second position.

In some embodiments of the present invention, in some embodiments,

the first locking part comprises a convex part, a concave part or a lock hole;

the second locking part comprises a lock hook, wherein the lock hook is hooked on the protruding part, the concave part or the lock hole at a first position so as to lock the second door relative to the first door, and is separated from the protruding part, the concave part or the lock hole at a second position so as to unlock the second door relative to the first door;

the driving device is configured to drive the latch hook to move so as to realize switching of the latch hook between the first position and the second position.

In some embodiments, the door lock further comprises:

the first shell is used for being connected with the first door, and the first locking part is arranged in the first shell; and/or

And a second housing for connection with the second door, the second locking portion being movably mounted in the second housing.

In some embodiments of the present invention, in some embodiments,

the driving device is configured to drive the second locking part to rotate along the first direction so as to enable the second end of the second locking part to be separated from the first locking part, and therefore the second locking part is switched from the first position to the second position;

the driving device is configured to drive the second locking part to rotate along a second direction, so that the second end of the second locking part is matched with the first locking part, and the second locking part is switched from a second position to a first position, and the second direction is opposite to the first direction.

In some embodiments, the driving apparatus includes:

a mechanical drive mechanism configured to drive the second locking portion to switch from the first position to the second position and/or from the second position to the first position; and/or

And an electromagnetic driving mechanism configured to drive the second locking portion to switch from the first position to the second position and/or from the second position to the first position.

In some embodiments, the mechanical drive mechanism comprises:

a fixture configured to be mounted to the second door;

the rotating piece is rotatably connected with the fixing piece; and

the first push rod is movably connected with the rotating piece, the rotating piece is configured to rotate relative to the fixed piece to enable the first push rod to translate relative to the fixed piece to be close to or far away from the second locking part, and the first push rod is close to the second locking part to drive the second locking part to switch from the first position to the second position.

In some embodiments of the present invention, in some embodiments,

the electromagnetic drive mechanism includes:

the second push rod is made of magnetic conductive materials; and

a first electromagnet configured to generate electromagnetic force that moves the second push rod in a direction approaching the second locking portion when power is supplied, so as to drive the second locking portion to switch from the first position to the second position by the second push rod;

The first push rod is located at one end, far away from the second locking part, of the second push rod, and the first push rod drives the second locking part to switch from the first position to the second position through the second push rod.

In some embodiments of the present invention, in some embodiments,

the door lock also comprises a second shell, the second shell is used for being connected with the second door, the second locking part is movably arranged in the second shell, the fixing piece is arranged in the second shell, and the second shell is provided with an opening;

the rotating member includes a grip portion protruding from the opening to rotate the rotating member relative to the fixed member by driving the grip portion.

In some embodiments, the securing member is provided with a first mounting slot, the first pushrod is provided with a second mounting slot, and the rotating member includes:

the first connecting rod is rotatably arranged in the first mounting groove; and

the second connecting rod is rotatably arranged in the second mounting groove along the groove wall of the second mounting groove in a direction perpendicular to the rotation axis of the second connecting rod.

In some embodiments, a slide is provided on the fixing member, and the first push rod is slidably engaged with the slide.

In some embodiments, the drive device further comprises a first return mechanism configured to apply a force to the first push rod tending to move it away from the second locking portion.

In some embodiments of the present invention, in some embodiments,

one end of the fixing piece, which is close to the second locking part, comprises a first flange part;

one end of the first push rod, which is far away from the second locking part, comprises a second flange part, and the first flange part is positioned between the second locking part and the second flange part;

the first return mechanism includes a first return spring disposed between the first flange portion and the second flange portion, the first return spring configured to apply a force to the second flange portion tending to move it away from the second locking portion.

In some embodiments, the fixing member is provided with a slide rail, the first push rod is in sliding fit with the slide rail, the slide rail comprises a first through hole arranged at the first flange part, the first push rod is arranged in the first through hole in a penetrating mode, and the first reset spring is sleeved on a rod section, located between the first flange part and the second flange part, of the first push rod.

In some embodiments, an end of the fixing piece away from the second locking portion includes a third flange portion, the slideway includes a second through hole disposed in the third flange portion, and an end of the first push rod away from the second locking portion is disposed in the second through hole in a penetrating manner, and the second flange portion is located between the first flange portion and the third flange portion.

In some embodiments, the rotating member includes a first connecting rod, a second connecting rod and two support arms, the first connecting rod and the second connecting rod are respectively connected between the two support arms, the first connecting rod is rotatably connected to the fixing member, the second connecting rod is rotatably and translatably movably connected to the second flange portion of the first push rod along a direction perpendicular to the rotation direction of the second connecting rod, and the third flange portion is located between the two support arms.

In some embodiments, the electromagnetic drive mechanism is configured to drive the second latch portion to switch from the first position to the second position upon power up.

In some embodiments, the electromagnetic drive mechanism comprises:

the first electromagnet is configured to generate electromagnetic force for enabling the second push rod to move towards the direction close to the second locking part when power is supplied to the first electromagnet, and the second push rod is made of magnetic conductive materials, so that the second locking part is driven to switch from the first position to the second position through the second push rod; or (b)

The second electromagnet is made of a magnetic conductive material and is configured to generate electromagnetic force for attracting the second locking part when power is supplied to drive the second locking part to switch from the first position to the second position.

In some embodiments, the drive device further comprises a second reset mechanism configured to apply a force to the second latch tending to switch it to the first position.

In some embodiments of the present invention, in some embodiments,

the door lock comprises a second shell, the second shell is used for being connected with the second door, and the second locking part is movably arranged in the second shell;

the second reset mechanism comprises a second reset spring, and the second reset spring is arranged between the second locking part and the second shell.

In some embodiments of the present utility model, in some embodiments,

the second locking part comprises a locking part body and a stop part arranged on the locking part body, and an avoidance hole is formed in the stop part;

the second shell is provided with a mounting column protruding towards one side of the stop part and extending into the avoidance hole;

the second reset spring is sleeved on the mounting column, two ends of the second reset spring respectively lean against the stop part and the second shell, and the second reset spring is configured to apply force to the stop part, so that the stop part tends to be far away from the position of the second shell, where the mounting column is arranged.

According to another aspect of the present utility model, there is provided a refrigerator having a door, including:

a first door;

a second door parallel to the first door; and

the door lock has the first locking part mounted to the first door and the second locking part mounted to the second door.

Based on the above technical solution, the present utility model can realize that when the second door is locked relative to the first door, opening or closing the first door does not cause abnormal opening of the second door, and when the second door is unlocked relative to the first door, the opening or closing action of the second door does not affect the opening or closing state of the first door, thereby guaranteeing the operational reliability of the first door and the second door, by providing the first locking portion and the second locking portion configured to be mounted to the first door and the second door, respectively, and providing the second locking portion to be engaged/disengaged with the first locking portion so as to lock/unlock the second door relative to the first door. The second locking part is provided with the first position and the second position, the second door is locked relative to the first door when the second locking part is at the first position, the second door is unlocked relative to the first door when the second locking part is at the second position, and the driving device for realizing the switching of the second locking part between the first position and the second position is arranged, so that the locking state and the unlocking state of the second door relative to the first door can be controlled by controlling the driving device, the operation is convenient, and the user experience is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 shows a schematic structural view of one embodiment of the door lock of the present utility model;

FIGS. 2a and 2b are schematic views of a door lock according to an embodiment of the present utility model, showing the second locking portion in the first and second positions, respectively;

fig. 3a and 3b show schematic views of a further embodiment of the door lock according to the utility model, with the second locking part in a first position and a second position, respectively;

FIGS. 4a and 4b are schematic views showing the structure of the mechanical driving mechanism when the second locking part is at the first position and the second position, respectively, in one embodiment of the door lock according to the present utility model;

FIG. 5 is a schematic view showing the structure of the second locking portion in one embodiment of the door lock of the present utility model;

FIG. 6 is a schematic view showing the structure of a fixing member in one embodiment of the door lock of the present utility model;

FIG. 7 is a schematic view showing the structure of a rotating member in one embodiment of the door lock of the present utility model;

FIG. 8 shows a schematic assembly of a first electromagnet and a second pushrod in an embodiment of the door lock of the present utility model;

FIG. 9 shows a schematic view of the assembly of the first push rod and the first return spring in one embodiment of the door lock of the present utility model;

FIG. 10 is a schematic view showing the structure of a driving device in one embodiment of the door lock of the present utility model;

FIG. 11 is a schematic view showing the structure of a driving device in another embodiment of the door lock of the present utility model;

FIG. 12 is a schematic view showing the structure of a mechanical driving mechanism in one embodiment of the door lock of the present utility model;

FIG. 13 shows an exploded view of one embodiment of the door lock of the present utility model;

fig. 14 is a schematic view showing the assembly of the first door, the second door, and the door lock in one embodiment of the refrigerator having the stacked doors of the present utility model.

In the figure:

1. a first door; 2. a second door;

10. a first locking portion;

20. a second locking portion; 21. a locking part body; 22. a stop portion; 23. avoidance holes;

30. a first housing;

40. a second housing; 40a, a first shell cover; 40b, a first shell; 40c, a second shell cover; 40d, a second shell; 40e, a catheter; 41. a mounting column;

50. a fixing member; 50a, a first mounting groove; 51. a first flange portion; 51a, first through holes; 52. a third flange portion; 52a, a second through hole;

60. a rotating member; 61. a grip portion; 62. a first connecting rod; 63. a second connecting rod; 64. a support arm;

70. A first push rod; 70a, a second mounting groove; 71. a second flange portion;

80. a first return spring; 90. a first electromagnet; 100. a second push rod; 110. a second electromagnet; 120. and a second return spring.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present utility model.

Referring to fig. 1 and 14, the door lock provided by the present utility model is configured to lock and unlock the second door 2 with respect to the first door 1, and in some embodiments, the door lock includes a first locking portion 10, a second locking portion 20, and a driving device, the first locking portion 10 is configured to be mounted to the first door 1, and the second locking portion 20 is configured to be mounted to the second door 2; the second locking portion 20 has a first position in which the second locking portion 20 cooperates with the first locking portion 10 to lock the second door 2 with respect to the first door 1, and a second position in which the second locking portion 20 is disengaged from the first locking portion 10 to unlock the second door 2 with respect to the first door 1; the driving means is configured to drive the second locking portion 20 in motion to effect switching of the second locking portion 20 between the first and second positions.

By providing the first locking portion 10 and the second locking portion 20 configured to be mounted to the first door 1 and the second door 2, respectively, and providing the second locking portion 20 to be engaged/disengaged with the first locking portion 10 to lock/unlock the second door 2 with respect to the first door 1, it is possible to realize that opening or closing the first door 1 does not cause abnormal opening of the second door 2 when the second door 2 is locked with respect to the first door 1, and that an action of opening or closing the second door 2 does not affect an open/close state of the first door 1 when the second door 2 is unlocked with respect to the first door 1, thereby securing operational reliability of the first door 1 and the second door 2.

By providing the second locking portion 20 with the first position and the second position, and locking the second door 2 with respect to the first door 1 in the first position, unlocking the second door 2 with respect to the first door 1 in the second position, and providing the driving device for realizing the switching of the second locking portion 20 between the first position and the second position, the control of the locked and unlocked state of the second door 2 with respect to the first door 1 can be realized by controlling the driving device, which is convenient to operate and helps to promote the user experience.

In some embodiments, the first locking portion 10 comprises a protrusion, a recess, or a locking hole; the second locking part 20 includes a locking hook, which is hooked to the protrusion, the recess or the locking hole in a first position to lock the second door 2 with respect to the first door 1, and is disengaged from the protrusion, the recess or the locking hole in a second position to unlock the second door 2 with respect to the first door 1; the driving device is configured to drive the latch hook to move so as to realize switching of the latch hook between the first position and the second position.

As shown in fig. 2a and 2b, the first locking portion 10 is a protruding portion, the second locking portion 20 is a latch hook, when the second locking portion 20 is at the first position, specifically, as shown in fig. 2a, the latch hook is hooked on the protruding portion, and the protruding portion plays a role of preventing the latch hook from translating rightwards with reference to the direction in the drawing, and since the protruding portion and the latch hook are respectively configured to be mounted on the first door 1 and the second door 2, that is, at this time, the second door 2 cannot displace relative to the first door 1, locking of the second door 2 relative to the first door 1 is achieved, so that the second door 2 cannot be opened relative to the first door 1 due to inertia or the like in the process of opening or closing the first door 1 is ensured; when the second locking portion 20 is in the second position, with specific reference to fig. 2b, the locking hook is disengaged from the protruding portion, and with reference to the direction in the figure, the locking hook is able to translate to the right, whereas as the protruding portion and the locking hook are configured to be mounted to the first door 1 and the second door 2, respectively, i.e. at this time the second door 2 is able to be displaced relative to the first door 1, unlocking of the second door 2 relative to the first door 1 is achieved, such that the second door 2 is able to be opened.

In other embodiments, the engagement between the second locking portions 20 between the first locking portions 10 may be performed by other manners, such as snap-fit, magnetic engagement, etc., as long as the engaged/disengaged state between the first locking portions 10 and the second locking portions 20 can be switched instantly.

Referring to fig. 1, in some embodiments, the door lock further includes a first housing 30, the first housing 30 is for connection with the first door 1, and the first locking portion 10 is installed in the first housing 30.

By providing the first housing 30 for connection with the first door 1, i.e. providing an intermediate carrier connected between the first locking portion 10 and the first door 1, the first locking portion 10 can be mounted and dismounted with respect to the first door 1 without affecting the respective structures of the first locking portion 10 and the first door 1, facilitating installation and subsequent maintenance.

Referring to fig. 1, in some embodiments, the door lock further includes a second housing 40, the second housing 40 being for connection with the second door 2, the second locking portion 20 being movably mounted within the second housing 40.

By providing the second housing 40 for connection with the second door 2, i.e. providing an intermediate carrier connected between the second latch portion 20 and the second door 2, the mounting and dismounting of the second latch portion 20 with respect to the second door 2 can be achieved without affecting the respective structures of the second latch portion 20 and the second door 2, facilitating installation and subsequent maintenance.

And the second locking portion 20 is provided to be movable with respect to the second housing 40, the switching of the second locking portion 20 between the first position and the second position can be achieved by controlling the movement of the second locking portion 20.

Referring to fig. 1, in some embodiments, the door lock further includes a first housing 30 and a second housing 40, the first housing 30 is configured to be connected to the first door 1, the first locking portion 10 is installed in the first housing 30, the second housing 40 is configured to be connected to the second door 2, and the second locking portion 20 is movably installed in the second housing 40.

By arranging the first casing 30 and the second casing 40 respectively used for being connected with the first door 1 and the second door 2, on one hand, the first locking part 10 and the second locking part 20 are convenient to assemble and disassemble, and on the other hand, the first casing 30 and the second casing 40 can be used as carriers for accommodating and installing other parts (such as a driving device) of the door lock, so that the integrated arrangement of the parts of the door lock is facilitated, the integrity of the door lock is improved, and the door lock is easy to be integrally installed on a door structure needing to realize unlocking/locking functions, so that the application range of the door lock can be effectively enlarged.

Referring to fig. 2a, 2b, 3a and 3b, in some embodiments, the driving device is configured to drive the second locking portion 20 to rotate in a first direction to disengage the second end of the second locking portion 20 from the first locking portion 10, thereby switching the second locking portion 20 from the first position to the second position; the driving means is configured to drive the second locking portion 20 to rotate in a second direction, which is opposite to the first direction, such that the second end of the second locking portion 20 cooperates with the first locking portion 10, thereby switching the second locking portion 20 from the second position to the first position.

In the above-described embodiment, the first end of the second locking portion 20 is connected to the second housing 40, and the second locking portion 20 is rotatable relative to the second housing 40.

Referring specifically to fig. 2a and 3a, when the second locking portion 20 is in the first position, the second end of the second locking portion 20 mates with the first locking portion 10; referring to fig. 2b and 3b, when the second locking portion 20 is in the second position, the second end of the second locking portion 20 is disengaged from the first locking portion 10. Referring to the directions in fig. 2a, 2b, 3a and 3b, the second locking portion 20 is switched from the first position to the second position by rotation in the clockwise direction and from the second position to the first position by rotation in the counterclockwise direction, i.e., the second locking portion 20 is switched between the first position and the second position by driving the second locking portion 20 to rotate in the opposite direction.

In some embodiments, the drive means comprises a mechanical drive mechanism configured to drive the second locking portion 20 to switch from the first position to the second position and/or from the second position to the first position.

By providing a mechanical driving mechanism, the second locking part 20 can be switched between the first position and the second position through transmission between the mechanical structures, and the operation is simple and the reliability is high.

In some embodiments, the driving means comprises an electromagnetic driving mechanism configured to drive the second locking portion 20 to switch from the first position to the second position and/or from the second position to the first position.

Through setting up electromagnetic drive mechanism, accessible control electromagnetic drive mechanism's power-on or lose electricity and realize that second locking portion 20 switches between first position and second position, easily controls, and is convenient for combine with electrical system, is favorable to follow-up optimization and design.

In some embodiments, the drive device includes a mechanical drive mechanism configured to drive the second latch portion 20 to switch from the first position to the second position and/or from the second position to the first position, and an electromagnetic drive mechanism configured to drive the second latch portion 20 to switch from the first position to the second position and/or from the second position to the first position.

Through setting up electromagnetic drive mechanism for the locking and unlocking function of lock is convenient for combine with electrical system, in order to realize the automatically controlled design to the lock, makes the control of lock executable through software, does benefit to it and updates and optimize, and through setting up mechanical drive mechanism, can effectively ensure the reliability of lock function, for example can realize locking and unblock through mechanical drive mechanism under the outage condition. The driving device comprises a mechanical driving mechanism and an electromagnetic driving mechanism, namely the door lock of the utility model combines the advantages of electromagnetic driving and mechanical driving, and is beneficial to improving user experience.

Referring to fig. 1, 4a and 4b, in some embodiments, the mechanical drive mechanism includes a fixed member 50, a rotating member 60, and a first push rod 70, the fixed member 50 is configured to be mounted to the second door 2, the rotating member 60 is rotatably connected to the fixed member 50, the first push rod 70 is movably connected to the rotating member 60, the rotating member 60 is configured to rotate relative to the fixed member 50 to translate the first push rod 70 relative to the fixed member 50 to approach or separate from the second locking portion 20, and the first push rod 70 approaches the second locking portion 20 to drive the second locking portion 20 to switch from the first position to the second position.

Specifically, when the mechanical driving mechanism is in the state shown in fig. 4a, the second locking portion 20 is in the first position, and when the mechanical driving mechanism is in the state shown in fig. 4b, the second locking portion 20 is in the second position, that is, the rotation member 60 is rotated to be switched from the orientation shown in fig. 4a to the orientation shown in fig. 4b, so that the second door 2 can be unlocked relative to the first door 1, and the operation is convenient.

Referring to fig. 1 and 10, in some embodiments, the electromagnetic drive mechanism includes a second pushrod 100 and a first electromagnet 90, the second pushrod 100 being made of a magnetically conductive material, the first electromagnet 90 being configured to generate an electromagnetic force that moves the second pushrod 100 in a direction toward the second locking portion 20 when powered to drive the second locking portion 20 to switch from the first position to the second position by the second pushrod 100; the first push rod 70 is located at an end of the second push rod 100 away from the second locking portion 20, and the first push rod 70 drives the second locking portion 20 to switch from the first position to the second position through the second push rod 100.

In the above embodiment, the fixing member 50 is configured to be mounted to the second door 2, the rotating member 60 is rotatably connected to the fixing member 50, both ends of the first push rod 70 are movably connected to the rotating member 60 and the second push rod 100, respectively, and the rotating member 60 is configured to rotate relative to the fixing member 50 to translate the first push rod 70 relative to the fixing member 50 to drive the second push rod 100 toward or away from the second locking portion 20.

Based on the above arrangement, the unlocking of the second door 2 relative to the first door 1 can be realized by the second push rod 100 and the first electromagnet 90 alone, and the unlocking of the second door 2 relative to the first door 1 can be realized by the cooperation of the mechanical driving mechanism and the second push rod 100, so that on one hand, the unlocking function of the door lock is convenient to be combined with an electric control system to realize the electric control design of the door lock, the control of the door lock can be performed by software, the updating and the optimization of the door lock are facilitated, and on the other hand, the reliability of the door lock function can be effectively ensured, for example, the unlocking can be realized by the cooperation of the mechanical driving mechanism and the second push rod 100 under the condition of power failure.

Referring to fig. 1 and 12, in some embodiments, the door lock further includes a second housing 40, the second housing 40 is configured to be connected to the second door 2, the second locking portion 20 is movably installed in the second housing 40, the fixing member 50 is disposed in the second housing 40, and the second housing 40 is provided with an opening; the rotating member 60 includes a grip portion 61 protruding from the opening to rotate the rotating member 60 relative to the fixed member 50 by driving the grip portion 61.

As shown in fig. 7, the grip portion 61 of the rotating member 60 is designed to be easily gripped so as to be pushed or pulled, and the grip portion 61 is protruded from the opening below the second housing 40 with reference to the direction shown in fig. 12, so that the operation of the mechanical driving mechanism can be controlled by the protruded grip portion 61 regardless of the orientation or position of the second housing 40.

Referring to fig. 4a, 4b, 6, 7 and 12, in some embodiments, the fixing member 50 is provided with a first mounting groove 50a, the first push rod 70 is provided with a second mounting groove 70a, the rotating member 60 includes a first connecting rod 62 and a second connecting rod 63, the first connecting rod 62 is rotatably disposed in the first mounting groove 50a, and the second connecting rod 63 is rotatably and slidably disposed in the second mounting groove 70a along a groove wall of the second mounting groove 70a in a direction perpendicular to a rotation axis of the second connecting rod 63.

In the above embodiment, the second housing 40 includes the receiving cavity for mounting the fixing member 50, and the shape of the receiving cavity is adapted to the outer contour of the fixing member 50 so that the position of the fixing member 50 with respect to the second housing 40 is maintained unchanged. As the first connecting rod 62 rotates relative to the first mounting groove 50a, the second connecting rod 63 rotates and slides relative to the second mounting groove 70a, as shown with reference to fig. 4a and 4b, the position of the second connecting rod 63 within the second mounting groove 70a changes, thereby translating the first push rod 70 relative to the second housing 40 and the fixture 50.

Referring to fig. 1, 4a and 4b, in some embodiments, a slide is provided on the mount 50, and the first push rod 70 is slidably engaged with the slide.

By providing the fixing member 50 with a slide rail that cooperates with the first push rod 70, the movement of the first push rod 70 can be guided, and the sliding stability of the first push rod 70 relative to the fixing member 50 can be ensured.

In some embodiments, the drive device further includes a first reset mechanism configured to apply a force to the first push rod 70 tending to move it away from the second latch portion 20.

By providing the first reset mechanism, the first push rod 70 can be moved away from the second locking portion 20 without manual operation, so that the second locking portion 20 can be further switched from the second position to the first position, and locking of the second door 2 with respect to the first door 1 can be further achieved.

Referring to fig. 6, 9 and 12, in some embodiments, an end of the fixing member 50 near the second locking portion 20 includes a first flange portion 51, an end of the first push rod 70 remote from the second locking portion 20 includes a second flange portion 71, the first flange portion 51 is located between the second locking portion 20 and the second flange portion 71, the first return mechanism includes a first return spring 80, the first return spring 80 is disposed between the first flange portion 51 and the second flange portion 71, and the first return spring 80 is configured to apply a force to the second flange portion 71 that tends to move away from the second locking portion 20.

In the above-described embodiment, when the first push rod 70 moves in a direction approaching the second locking portion 20, the distance between the second flange portion 71 and the first flange portion 51 becomes smaller, so that the first return spring 80 is compressed to generate an elastic force in the axial direction thereof, and the second flange portion 71 receives a vertically downward force applied by the first return spring 80, that is, a force tending to move the second flange portion 71 away from the second locking portion 20, with reference to the direction in fig. 12.

In other embodiments, the first return mechanism includes a member having elasticity.

Referring to fig. 12, in some embodiments, the fixing member 50 is provided with a slide rail, the first push rod 70 is slidably matched with the slide rail, the slide rail includes a first through hole 51a disposed on the first flange portion 51, the first push rod 70 is disposed in the first through hole 51a in a penetrating manner, and the first return spring 80 is sleeved on a rod section of the first push rod 70 between the first flange portion 51 and the second flange portion 71.

By the cooperation of the first flange portion 51, the second flange portion 71, and the rod section of the first push rod 70 between the first flange portion 51 and the second flange portion 71, the stopper function of the first return spring 80 is achieved, thereby ensuring the mounting stability and the operational reliability of the first return spring 80.

Referring to fig. 6 and 12, in some embodiments, an end of the fixing member 50 remote from the second locking portion 20 includes a third flange portion 52, the slideway includes a second through hole 52a provided in the third flange portion 52, an end of the first push rod 70 remote from the second locking portion 20 is penetrated in the second through hole 52a, and the second flange portion 71 is located between the first flange portion 51 and the third flange portion 52.

Through the arrangement in the above embodiment, the fixing member 50 and the first push rod 70 are tightly matched, so that not only is the assembly stability of each part of the mechanical driving mechanism ensured, but also the whole volume of the door lock is reduced, the space is saved, and the adaptability of the door lock relative to structures of different doors is improved.

Referring to fig. 7 and 12, in some embodiments, the rotating member 60 includes a first connecting rod 62, a second connecting rod 63, and two support arms 64, the first connecting rod 62 and the second connecting rod 63 are respectively connected between the two support arms 64, the first connecting rod 62 is rotatably connected to the fixing member 50, the second connecting rod 63 is rotatably and translatably movably connected to the second flange portion 71 of the first push rod 70 in a direction perpendicular to the rotation direction of the second connecting rod 63, and the third flange portion 52 is located between the two support arms 64.

Referring to fig. 7, the two support arms 64 are plate-shaped, and the two support arms 64 form a space for accommodating the third flange portion 52, so that the fixing member 50 and the rotating member 60 are tightly matched by the matching of the first mounting groove 50a, the second mounting groove 70a, the first connecting rod 62, the second connecting rod 63, the two support arms 64, the third flange portion 52 and other components, so that the assembling stability of each component of the mechanical driving mechanism is ensured, the whole volume of the door lock is reduced, the space is saved, and the adaptability of the door lock relative to the structures of different doors is improved.

In some embodiments, the electromagnetic drive mechanism is configured to drive the second latch 20 to switch from the first position to the second position upon power up.

Based on the above arrangement, the second door 2 can be unlocked with respect to the first door 1 by supplying power to the electromagnetic driving mechanism, and the operation is simple and quick.

Referring to fig. 2a and 2b, in some embodiments, the electromagnetic drive mechanism includes a first electromagnet 90 and a second pushrod 100, the second pushrod 100 being made of magnetically conductive material, the first electromagnet 90 being configured to generate an electromagnetic force that moves the second pushrod 100 in a direction toward the second locking portion 20 when powered to drive the second locking portion 20 to switch from the first position to the second position via the second pushrod 100.

In the above embodiment, the first electromagnet 90 is of a hollow structure, the second push rod 100 is inserted into the first electromagnet 90, and as shown in fig. 2a, when the first electromagnet 90 is de-energized, the second push rod 100 is at an initial position, and at this time, the second push rod 100 is not in contact with the second locking portion 20, and the second locking portion 20 is at a first position; referring to fig. 2b, when the first electromagnet 90 is powered, the second push rod 100 extends with respect to the first electromagnet 90 due to electromagnetic force and pushes the second locking portion 20 to move so as to switch the second locking portion 20 from the first position to the second position.

Referring to fig. 8, in other embodiments, the electromagnetic driving mechanism is a push-pull electromagnet, the push-pull electromagnet includes a first electromagnet 90 and a second push rod 100, the first electromagnet 90 is of a hollow structure, the second push rod 100 is inserted into the first electromagnet 90, and the push-pull electromagnet has the advantages of small volume and convenient use, and can be selected according to practical requirements in the production process.

Referring to fig. 1 and 10, in some embodiments, the driving apparatus includes a mechanical driving mechanism including the fixed member 50, the rotating member 60, and the first push rod 70, and an electromagnetic driving mechanism including the first electromagnet 90 and the second push rod 100, the first electromagnet 90 being configured to generate an electromagnetic force that moves the second push rod 100 in a direction approaching the second locking portion 20 when power is supplied.

In the above embodiment, the fixing member 50 is disposed in the second housing 40, the rotating member 60 is rotatably connected to the fixing member 50, two ends of the first push rod 70 are movably connected to the rotating member 60 and the second push rod 100, respectively, and the rotating member 60 is configured to rotate relative to the fixing member 50 to translate the first push rod 70 relative to the fixing member 50 to drive the second push rod 100 to approach or separate from the second locking portion 20.

Referring to fig. 3a and 3b, in some embodiments, the electromagnetic drive mechanism includes a second electromagnet 110, the second locking portion 20 being made of a magnetically conductive material, the second electromagnet 110 being configured to generate an electromagnetic force that attracts the second locking portion 20 when powered to drive the second locking portion 20 to switch from the first position to the second position.

In the above embodiment, the second electromagnet 110 is installed in the first housing 30, and the second end of the second locking portion 20 is located between the second electromagnet 110 and the first locking portion 10, specifically referring to fig. 3a, when the second electromagnet 110 is powered off, the second electromagnet 110 is not in contact with the second locking portion 20, and the second locking portion 20 is in the first position; referring to fig. 3b, when the second electromagnet 110 is powered, the second electromagnet 110 generates a suction force to the second locking portion 20 due to electromagnetic force, so that the second end of the second locking portion 20 is attracted to the second electromagnet 110, thereby switching the second locking portion 20 from the first position to the second position.

Referring to fig. 11 and 12, in some embodiments, the driving device includes a mechanical driving mechanism including the fixed member 50, the rotating member 60, and the first push rod 70, and an electromagnetic driving mechanism including the second electromagnet 110, and the second locking portion 20 is made of a magnetically conductive material.

In the above embodiment, the fixing member 50 is disposed in the second housing 40, the rotating member 60 is rotatably connected to the fixing member 50, the first push rod 70 is movably connected to the rotating member 60, the rotating member 60 is configured to rotate relative to the fixing member 50 to translate the first push rod 70 relative to the fixing member 50 to approach or separate from the second locking portion 20, the second electromagnet 110 is mounted in the first housing 30, and the second end of the second locking portion 20 is located between the second electromagnet 110 and the first locking portion 10.

In some embodiments, the drive device further comprises a second reset mechanism configured to apply a force to the second latch 20 tending to switch it to the first position.

By providing the second reset mechanism, the second locking portion 20 can be switched to the first position without manual operation, and thus locking of the second door 2 with respect to the first door 1 can be achieved.

Referring to fig. 1, 2a, 2b, 3a and 3b, in some embodiments, the door lock includes a second housing 40, the second housing 40 being for connection with the second door 2, the second locking portion 20 being movably mounted within the second housing 40; the second return mechanism includes a second return spring 120, and the second return spring 120 is disposed between the second locking portion 20 and the second housing 40.

By disposing the second return spring 120 between the second locking portion 20 and the second housing 40, referring specifically to fig. 2a and 2b, when the second locking portion 20 is in the first position in fig. 2a, when the second locking portion 20 is in the second position in fig. 2b, the second return spring 120 shown in fig. 2b is further compressed compared to the state of the second return spring 120 shown in fig. 2a, and thus a tendency to return to the state in fig. 2a occurs while an elastic force in the axial direction of the second return spring 120 is applied to the second locking portion 20, i.e., the second locking portion 20 receives a force tending to switch it to the first position.

In other embodiments, the second return mechanism includes a member having elasticity.

Referring to fig. 5 and 10, in some embodiments, the second locking part 20 includes a locking part body 21 and a stop part 22 disposed on the locking part body 21, a relief hole 23 is formed in the stop part 22, a mounting post 41 protruding toward one side of the stop part 22 and extending into the relief hole 23 is disposed on the second housing 40, a second return spring 120 is sleeved on the mounting post 41, two ends of the second return spring 120 respectively abut against the stop part 22 and the second housing 40, and the second return spring 120 is configured to apply a force to the stop part 22 to urge it away from a position of the second housing 40 where the mounting post 41 is disposed.

Referring to fig. 2a, 2b, 3a and 3b, it can be seen that when the second locking portion 20 is not at the first position, the distance between the stopper 22 and the second housing 40 is always smaller than the distance between the stopper 22 and the second housing 40 when the second locking portion 20 is at the first position, i.e., the second return spring 120 is always in a compressed state, so that an elastic force is generated along the axial direction thereof, thereby driving the stopper 22 to move in a direction away from the position of the second housing 40 where the mounting post 41 is provided, and further driving the second locking portion 20 to switch to the first position.

In the above embodiment, the second return spring 120 is sleeved on the mounting post 41, the second return spring 120 is disposed between the stop portion 22 and the second housing 40, and two ends of the second return spring are respectively abutted against the stop portion 22 and the second housing, that is, the stop portion 22, the second housing 40 and the mounting post 41 play a limiting role on the first return spring 80, so that the mounting stability and the working reliability of the second return spring 120 are ensured.

The following describes a specific structure of one embodiment of the door lock of the present utility model:

referring to fig. 1 and 13, in the present embodiment, the door lock includes a first locking portion 10, a second locking portion 20, a first housing 30, a second housing 40, a fixing member 50, a rotating member 60, a first push rod 70, a first return spring 80, a push-pull electromagnet including a first electromagnet 90 and a second push rod 100, and a second return spring 120, the first locking portion 10 is installed in the first housing 30, and the fixing member 50, the rotating member 60, the first push rod 70, the first return spring 80, the push-pull electromagnet, and the second return spring 120 are all disposed in the second housing 40.

The second housing 40 includes a first housing cover 40a, a first housing body 40b, a second housing cover 40c, a second housing body 40d and a conduit 40e, the latch hook is disposed in a space enclosed by the first housing cover 40a and the first housing body 40b, the second locking portion 20 includes a locking portion body 21 and a stop portion 22 disposed on the locking portion body 21, an avoidance hole 23 is disposed in the stop portion 22, a mounting column 41 protruding toward one side of the stop portion 22 and extending into the avoidance hole 23 is disposed on the first housing cover 40a, the second return spring 120 is sleeved on the mounting column 41, two ends of the second return spring 120 respectively abut against the stop portion 22 and the first housing cover 40a, a first fixing portion and a second fixing portion for fixing a first end of the second locking portion 20 are disposed on the first housing cover 40a and the first housing body 40b, and a second end of the second locking portion 20 is configured to extend into an inner space of the first housing 30 and cooperate with the first locking portion 10 to achieve a locking function.

The fixing member 50 is disposed in a space surrounded by the second housing cover 40c and the second housing body 40d, the rotating member 60 is rotatably connected to the fixing member 50, the rotating member 60 includes a holding portion 61 protruding from the space, the holding portion 61 is designed to be easy to hold, the first push rod 70 is disposed in the conduit 40e, and two ends of the first push rod 70 are movably connected to the rotating member 60 and the second push rod 100, respectively.

Referring to fig. 6, 7, 9 and 12, one end of the fixing member 50 near the second locking portion 20 includes a first flange portion 51, one end of the first push rod 70 far from the second locking portion 20 includes a second flange portion 71, one end of the fixing member 50 far from the second locking portion 20 includes a third flange portion 52, the first flange portion 51 is located between the second locking portion 20 and the second flange portion 71, and the first return spring 80 is sleeved on a rod section of the first push rod 70 located between the first flange portion 51 and the second flange portion 71.

The fixing member 50 is provided with a slide way, the first push rod 70 is in sliding fit with the slide way, the slide way comprises a first through hole 51a arranged on the first flange portion 51 and a second through hole 52a arranged on the third flange portion 52, the first push rod 70 penetrates through the first through hole 51a and the second through hole 52a, and the second flange portion 71 is located between the first flange portion 51 and the third flange portion 52.

The fixing member 50 is provided with a first mounting groove 50a, the second flange portion 71 is provided with a second mounting groove 70a, the rotating member 60 further comprises a first connecting rod 62, a second connecting rod 63 and two support arms 64, the two support arms 64 are of plate-shaped structures, the first connecting rod 62 and the second connecting rod 63 are respectively connected between the two support arms 64, the first connecting rod 62 is rotatably arranged in the first mounting groove 50a, the second connecting rod 63 is rotatably arranged in the second mounting groove 70a along the groove wall of the second mounting groove 70a in a direction perpendicular to the rotation axis of the second connecting rod 63, and the third flange portion 52 is arranged between the two support arms 64.

Through the arrangement, the door lock disclosed by the utility model can realize the functions of manual unlocking/locking and electric unlocking/locking.

In this embodiment, the first locking portion 10 is a protruding portion mounted on the inner wall of the first housing 30, the second locking portion 20 is a locking hook, and the door lock of the present utility model is arranged in a vertical direction, that is, the axial direction of the first push rod 70 is a vertical direction.

Specifically, the manual unlocking/locking process is as follows: referring to the direction shown in fig. 1, the handle 61 is manually pulled to rotate the rotating member 60 by about 15 ° so that the first push rod 70 moves upwards by 4mm, and then the second push rod 100 of the push-pull electromagnet is pushed to move upwards to jack up the hook lock, the hook lock rotates clockwise and breaks away from the boss, namely, the unlocking action of the door lock is completed, and after the hand is released, the hook rotates anticlockwise and hooks the boss due to the action of gravity and the action of the second return spring 120 at the hook lock, namely, the locking action of the door lock is completed, and meanwhile, the first return spring 80 at the first push rod 70 drives the first push rod 70 to move downwards so that the rotating member 60 completes the resetting.

Specifically, the implementation process of electric unlocking/locking is as follows: referring to the direction shown in fig. 1, when the push-pull electromagnet is powered off, the second push rod 100 is in a retracted state, after the power is obtained, the second push rod 100 can extend relative to the first electromagnet 90 due to the electromagnetic force, namely, when the power is on, the second push rod 100 is pushed upwards to jack the latch hook to unlock, when the power is off, the second push rod 100 is retracted again, and the latch hook is reset and locked under the action of gravity and the second reset spring 120. Therefore, the locking/unlocking action of the door lock can be realized by controlling the push-pull electromagnet to lose/get electricity.

By way of illustration of the various embodiments of the door lock of the present utility model, it can be seen that the door lock of the present utility model has at least the following advantages:

1. the locking/unlocking of the second door relative to the first door is realized through the matching/unlocking of the first locking part and the second locking part, so that when the second door is locked relative to the first door, the first door is opened or closed, abnormal opening of the second door is not caused, and when the second door is unlocked relative to the first door, the opening or closing of the second door does not influence the opening and closing state of the first door, thereby ensuring the working reliability of the first door and the second door and greatly improving the user experience.

2. The driving device for controlling the matching relation between the first locking part and the second locking part is arranged, so that the locking state and the unlocking state of the second door relative to the first door can be controlled by controlling the driving device, and the operation is convenient.

3. The design thought of combining the electric control and the mechanical structure is adopted, so that the door lock can be unlocked manually while being unlocked electrically, the control of the door lock can be executed through software by virtue of the electric control, the updating and the optimization of the door lock are facilitated, the reliability of the door lock function is guaranteed by the mechanical structure, and the locking and the unlocking can be realized through a mechanical driving mechanism under the condition of power failure or failure of electric control equipment; compared with the mode that the door seal strip or the pure electric door lock is used for locking the door body structure in the related art, the reliability of the door lock is greatly improved.

4. The first shell and the second shell are respectively connected with the first door and the second door, so that the door lock can be assembled and disassembled relative to the first door and the second door under the condition that the structures of the door lock, the first door and the second door are not affected, the installation and the subsequent maintenance are convenient, meanwhile, the integrated arrangement of all parts of the door lock is convenient, the integrity of the door lock is improved, and the application range of the door lock can be effectively enlarged.

Based on the above door lock, the present utility model also proposes a refrigerator with a door comprising the above door lock, a first door 1 and a second door 2 parallel to the first door 1, as shown in fig. 14, a first locking portion 10 of the door lock is mounted on the first door 1, and a second locking portion 20 of the door lock is mounted on the second door 2.

The positive technical effects of the door lock in the above embodiments are also applicable to the refrigerator with stacked doors, and are not described herein again.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications and equivalents of the features disclosed herein may be made to the specific embodiments of the utility model or to parts of the features may be substituted without departing from the principles of the utility model, and such modifications and equivalents are intended to be encompassed within the scope of the utility model as claimed.

Claims (21)

1. A door lock configured to lock and unlock a second door (2) with respect to a first door (1), characterized by comprising:

a first locking portion (10) configured to be mounted to the first door (1);

a second locking portion (20) configured to be mounted to the second door (2), the second locking portion (20) having a first position in which the second locking portion (20) cooperates with the first locking portion (10) to lock the second door (2) relative to the first door (1), and a second position in which the second locking portion (20) is disengaged from the first locking portion (10) to unlock the second door (2) relative to the first door (1); and

and a driving device configured to drive the second locking part (20) to move so as to realize the switching of the second locking part (20) between the first position and the second position.

2. The door lock according to claim 1, wherein,

the first locking part (10) comprises a convex part, a concave part or a lock hole;

the second locking portion (20) comprises a locking hook, which in the first position is hooked to the protruding portion, the recessed portion or the locking hole to lock the second door (2) relative to the first door (1), and in the second position is disengaged from the protruding portion, the recessed portion or the locking hole to unlock the second door (2) relative to the first door (1);

The driving device is configured to drive the latch hook to move so as to realize switching of the latch hook between the first position and the second position.

3. The door lock of claim 1, further comprising:

a first housing (30) for connection with the first door (1), the first locking portion (10) being mounted within the first housing (30); and/or

And a second housing (40) for connecting to the second door (2), wherein the second locking portion (20) is movably mounted in the second housing (40).

4. The door lock according to claim 1, wherein,

the driving means is configured to drive the second locking portion (20) to rotate in a first direction to disengage the second end of the second locking portion (20) from the first locking portion (10) to switch the second locking portion (20) from the first position to the second position;

the driving means is configured to drive the second locking portion (20) to rotate in a second direction, which is opposite to the first direction, such that a second end of the second locking portion (20) cooperates with the first locking portion (10) such that the second locking portion (20) is switched from the second position to the first position.

5. The door lock according to claim 1, wherein the driving means includes:

a mechanical drive mechanism configured to drive the second locking portion (20) to switch from the first position to the second position and/or to switch from the second position to the first position; and/or

An electromagnetic drive mechanism configured to drive the second locking portion (20) to switch from the first position to the second position and/or to switch from the second position to the first position.

6. The door lock of claim 5, wherein the mechanical drive mechanism comprises:

a mount (50) configured to be mounted to the second door (2);

a rotating member (60) rotatably connected to the fixed member (50); and

a first push rod (70) movably connected with the rotating member (60), wherein the rotating member (60) is configured to rotate relative to the fixed member (50) so that the first push rod (70) translates relative to the fixed member (50) to approach or separate from the second locking part (20), and the first push rod (70) approaches the second locking part (20) to drive the second locking part (20) to switch from the first position to the second position.

7. The door lock of claim 6, wherein the electromagnetic drive mechanism comprises:

A second push rod (100), the second push rod (100) being made of a magnetically permeable material; and

a first electromagnet (90), the first electromagnet (90) being configured to generate an electromagnetic force that moves the second push rod (100) in a direction approaching the second locking portion (20) when power is supplied, so as to drive the second locking portion (20) to switch from the first position to the second position by the second push rod (100);

the first push rod (70) is located at one end, far away from the second locking part (20), of the second push rod (100), and the first push rod (70) drives the second locking part (20) to switch from the first position to the second position through the second push rod (100).

8. The door lock according to claim 6, wherein,

the door lock further comprises a second shell (40), the second shell (40) is used for being connected with the second door (2), the second locking part (20) is movably arranged in the second shell (40), the fixing piece (50) is arranged in the second shell (40), and the second shell (40) is provided with an opening;

the rotating member (60) includes a grip portion (61) protruding from the opening to rotate the rotating member (60) relative to the fixed member (50) by driving the grip portion (61).

9. The door lock according to claim 6, wherein the fixing member (50) is provided with a first mounting groove (50 a), the first push rod (70) is provided with a second mounting groove (70 a), and the rotating member (60) includes:

a first connecting rod (62) rotatably disposed in the first mounting groove (50 a); and

a second connecting rod (63) is rotatably provided in the second mounting groove (70 a) along a groove wall of the second mounting groove (70 a) in a direction perpendicular to a rotation axis of the second connecting rod (63).

10. The door lock according to claim 6, characterized in that the fixing member (50) is provided with a slide, and the first push rod (70) is slidingly engaged with the slide.

11. The door lock according to claim 6, wherein the drive means further comprises a first return mechanism configured to apply a force to the first push rod (70) tending to move it away from the second locking portion (20).

12. The door lock according to claim 11, wherein,

one end of the fixing member (50) adjacent to the second locking portion (20) includes a first flange portion (51);

an end of the first push rod (70) remote from the second locking portion (20) includes a second flange portion (71), the first flange portion (51) being located between the second locking portion (20) and the second flange portion (71);

The first return mechanism includes a first return spring (80), the first return spring (80) being disposed between the first flange portion (51) and the second flange portion (71), the first return spring (80) being configured to apply a force to the second flange portion (71) tending to move it away from the second locking portion (20).

13. The door lock according to claim 12, wherein the fixing member (50) is provided with a slide way, the first push rod (70) is slidably matched with the slide way, the slide way comprises a first through hole (51 a) arranged on the first flange portion (51), the first push rod (70) is arranged in the first through hole (51 a) in a penetrating mode, and the first return spring (80) is sleeved on a rod section, located between the first flange portion (51) and the second flange portion (71), of the first push rod (70).

14. The door lock according to claim 13, wherein an end of the fixing member (50) remote from the second locking portion (20) includes a third flange portion (52), the slide includes a second through hole (52 a) provided to the third flange portion (52), an end of the first push rod (70) remote from the second locking portion (20) is penetrated in the second through hole (52 a), and the second flange portion (71) is located between the first flange portion (51) and the third flange portion (52).

15. The door lock according to claim 14, characterized in that the rotating member (60) comprises a first connecting rod (62), a second connecting rod (63) and two support arms (64), the first connecting rod (62) and the second connecting rod (63) being connected between the two support arms (64), respectively, the first connecting rod (62) being rotatably connected to the fixing member (50), the second connecting rod (63) being rotatably and translatably movably connected to the second flange portion (71) of the first push rod (70) in a direction perpendicular to the rotation direction of the second connecting rod (63), the third flange portion (52) being located between the two support arms (64).

16. The door lock according to claim 5, characterized in that the electromagnetic drive mechanism is configured to drive the second locking portion (20) to switch from the first position to the second position when powered.

17. The door lock of claim 16, wherein the electromagnetic drive mechanism comprises:

-a first electromagnet (90) and a second push rod (100), the second push rod (100) being made of magnetically conductive material, the first electromagnet (90) being configured to generate, when powered, an electromagnetic force that moves the second push rod (100) in a direction towards the second locking portion (20) to drive the second locking portion (20) by the second push rod (100) to switch from the first position to the second position; or (b)

-a second electromagnet (110), the second locking portion (20) being made of magnetically conductive material, the second electromagnet (110) being configured to generate, upon power, an electromagnetic force that attracts the second locking portion (20) to drive the second locking portion (20) to switch from the first position to the second position.

18. The door lock according to any one of claims 5 to 17, characterized in that the driving device further comprises a second reset mechanism configured to apply a force to the second locking portion (20) tending to switch it to the first position.

19. The door lock according to claim 18, wherein,

the door lock comprises a second shell (40), wherein the second shell (40) is used for being connected with the second door (2), and the second locking part (20) is movably arranged in the second shell (40);

the second return mechanism comprises a second return spring (120), and the second return spring (120) is arranged between the second locking part (20) and the second shell (40).

20. The door lock according to claim 19, wherein,

the second locking part (20) comprises a locking part body (21) and a stopping part (22) arranged on the locking part body (21), and an avoidance hole (23) is formed in the stopping part (22);

A mounting column (41) protruding towards one side of the stop part (22) and extending into the avoidance hole (23) is arranged on the second shell (40);

the second return spring (120) is sleeved on the mounting column (41), two ends of the second return spring (120) respectively lean against the stop part (22) and the second shell (40), and the second return spring (120) is configured to apply force to the stop part (22) to enable the stop part to be away from the position of the second shell (40) where the mounting column (41) is arranged.

21. A refrigerator having a stacked door, comprising:

a first door (1);

a second door (2) parallel to the first door (1); and

the door lock according to any one of claims 1 to 20, wherein a first locking portion (10) of the door lock is mounted to the first door (1), and a second locking portion (20) of the door lock is mounted to the second door (2).

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