Locking devices and refrigerators

Abstract

This invention discloses a locking device and a refrigerator. The locking device includes a locking assembly and a locking bolt, one of which is located in the refrigerator body, and the other in the refrigerator door. The locking bolt has a locking groove. The locking assembly includes an electric lock, a latch, and a mounting housing. The electric lock and the latch are located within the mounting housing. The mounting housing has a through hole on its side facing the locking groove for the locking bolt to pass through. The electric lock includes a driving member and a latching bolt corresponding to the side of the locking groove. The latching bolt is drivenly connected to the driving member. The latching bolt includes a first reset member and a locking element. The locking element is located at the top of the locking groove. The first reset member is located between the locking element and the top of the mounting housing, and the first reset member is used to give the locking element a tendency to move towards the locking groove. This invention prevents the refrigerator door from being accidentally opened, thus preventing damage to the food in the refrigerator's storage compartment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigerator, in particular to a lock device and a refrigerator. BACKGROUND

[0002] With the improvement of people's living standards, the refrigerator has become an essential household appliance in people's daily life. Especially in the hot summer, in order to slow down the reproduction of bacteria and fungi in food, and avoid the corruption and deterioration of food, food is often placed in the refrigerator for low-temperature storage.

[0003] However, the box door on the market is easy to be opened by adults, children and pets, etc., and then the cold air in the refrigerator is leaked, causing damage to the stored food in the storage cavity. SUMMARY

[0004] The main purpose of the present application is to provide a lock device to solve the problem of the box door being opened by mistake.

[0005] To achieve the above purpose, the lock device is used for a refrigerator, the refrigerator comprises a box body and a box door, the lock device comprises a lock assembly and a lock plug, one of the lock assembly and the lock plug is arranged on the box body, and the other is arranged on the box door;

[0006] The lock plug has a lock slot;

[0007] The lock assembly comprises an electric control lock, a latch and a mounting shell, the electric control lock and the latch are arranged in the mounting shell, a through hole is arranged on the side of the mounting shell facing the lock slot, the through hole is used for the lock plug to pass through, the electric control lock comprises a driving piece and a lock tongue arranged on the side of the lock slot, the lock tongue is drivingly connected with the driving piece, the latch comprises a first reset piece and a clamping piece, the clamping piece is located at the top of the lock slot, the first reset piece is arranged between the clamping piece and the top of the mounting shell, and the first reset piece is used to make the clamping piece have a tendency to move towards the lock slot,

[0008] The lock device has a door closing and locking state in which the lock tongue is clamped in the lock slot, a door closing and unlocking state in which the lock tongue is released from the lock slot and the clamping piece is clamped in the lock slot, and an open door and unlocking state in which the lock tongue and the clamping piece are released from the lock slot.

[0009] Optionally, the latch comprises a limiting piece, the limiting piece is movably arranged in the top wall of the mounting shell, one end of the limiting piece is fixed with the clamping piece, and the other end of the limiting piece is provided with a limiting portion, and the limiting portion is arranged outside the mounting shell.

[0010] Optionally, the limiting piece is configured as a screw, and the limiting portion is the head of the screw; and / or

[0011] The first reset member is configured as a reset spring.

[0012] Optionally, opposite sides of the lower end of the clamping member are respectively provided with a first guide slope, and / or opposite sides of the slot wall of the lock slot close to the lock assembly are respectively provided with a second guide slope.

[0013] When the lock device tends to be in a door closing and locking state, the lock plug moves towards the lock assembly, the second guide slope abuts against the first guide slope, so that the clamping member moves upwards; when the lock device tends to be in a door opening and unlocking state, the lock plug moves away from the lock assembly, the second guide slope abuts against the first guide slope, so that the clamping member moves upwards.

[0014] Optionally, a side of the free end of the lock tongue facing the via hole is provided with a third guide slope, when the lock device tends to be in a door closing state, the lock plug moves towards the lock assembly, the lock plug abuts against the third guide slope, so that the lock plug moves along the third guide slope.

[0015] Optionally, the lock includes a mounting seat, the mounting seat is fixed to the top wall of the mounting shell, one end of the first reset member is connected to the mounting seat, and the other end is connected to the clamping member.

[0016] Optionally, the mounting seat has a mounting cavity, the clamping member is arranged in the mounting cavity and moves up and down along the cavity wall of the mounting cavity, and the first reset member is arranged between the clamping member and the top cavity wall of the mounting cavity.

[0017] Optionally, the driving member is configured as an electromagnet and a second reset member, the electromagnet is used to drive the lock tongue to move away from the lock slot, and the second reset member is arranged between the electromagnet and the lock tongue and is used to drive the lock tongue to move towards the lock slot.

[0018] Optionally, the lock assembly further includes a manual lock, the manual lock is arranged corresponding to the lock tongue, and the manual lock is used to drive the lock tongue to move away from the lock plug.

[0019] Optionally, the manual lock includes a push rod and a third reset member, the push rod is provided with a pushing part, the mounting shell is provided with a mounting plate, the mounting plate is provided with a first pushing hole, the mounting shell is provided with a second pushing hole corresponding to the first pushing hole, the push rod is movably arranged in the first pushing hole and the second pushing hole, the pushing part is located between the first pushing hole and the second pushing hole, and the third reset member is arranged between the pushing part and the mounting plate.

[0020] The present invention also proposes a refrigerator, including a cabinet, a door, and the above-mentioned locking device, wherein one of the locking component and the locking plug of the locking device is disposed in the cabinet and the other is disposed in the door.

[0021] The above-mentioned locking device has at least the following beneficial effects:

[0022] The technical solution of this invention employs a lock assembly and a lock bolt, one of which is located in the housing and the other in the door. The lock bolt has a lock groove. The lock assembly includes an electric lock, a latch, and a mounting housing. The electric lock and the latch are located inside the mounting housing. The side of the mounting housing facing the lock groove has a through hole for the lock bolt to pass through. The electric lock includes a drive component and a latch bolt located on the side of the lock groove. The latch bolt is driven by the drive component. The latch bolt includes a first reset component and a locking component. The locking component is located at the top of the lock groove. The first reset component is located between the top of the locking element and the mounting housing, and is used to give the locking element a tendency to move towards the lock groove. Specifically, the lock assembly includes an electronic lock and a locking mechanism, which allows the refrigerator to have three states: a closed and locked state, a closed and unlocked state, and an open and unlocked state. It can be understood that when the user finishes using the refrigerator or leaves home, the electronic lock can lock the bolt, i.e., lock the door, preventing the door from being accidentally opened by children, pets, etc., causing cold air to escape from the refrigerator's storage cavity and spoiling food. Furthermore, if the user accidentally triggers the electronic lock switch without realizing it, although the drive component disengages the bolt from the lock groove, the locking mechanism can engage in the lock groove to prevent the door from opening and causing cold air to escape from the refrigerator's storage cavity, thus preventing food spoilage. When a user needs to open the cabinet door, they can trigger the switch of the electric lock and then pull the cabinet door. The top of the lock plug will abut against the latch, which will move upward to avoid the latch, thus opening the cabinet door. Although this lock device is equipped with a double lock, the cabinet door can be opened without any extra steps, making the operation simple. It can be seen that the technical solution of this invention can prevent the cabinet door from being opened accidentally, which could damage the food in the storage cavity. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a refrigerator according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of an embodiment of the locking device of the present invention;

[0026] Figure 3Fig. 4 is an exploded structural schematic view of the lock device as part of a door closing and locking state;

[0027] Figure 4 Fig. 5 is an exploded structural schematic view of the lock device as part of a door closing and unlocking state;

[0028] Figure 5 Fig. 6 is an exploded structural schematic view of the lock device as part of a door opening and unlocking state;

[0029] Figure 6 Fig. 7 is an exploded structural schematic view of the lock device as part of a door opening and locking state.

[0030] BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Reference Name Reference Name 100 Refrigerator 223 Limiting piece 110 Box body 224 Mounting seat 120 Box door 230 Mounting shell 200 Lock assembly 231 Via hole 210 Electric lock 232 Mounting plate 211 Driving piece 232a First pushing hole 211a Electromagnet 233 Second pushing hole 211b Second reset piece 240 Manual lock 212 Lock tongue 241 Push rod 212a Third guide inclined surface 241a Pushing part 220 Locking 242 Third reset piece 221 First reset piece 300 Lock plug 222 Clamping piece 310 Lock groove 222a First guide inclined surface 320 Second guide inclined surface

[0032] The purposes, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0034] It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), and if the certain posture changes, the directionality indications also change accordingly.

[0035] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0036] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0037] The present application provides a lock device.

[0038] Referring to Figure 1 , Figure 4 , Figure 5 and Figure 6 In an embodiment of the present application, the lock device is used in a refrigerator 100, the refrigerator 100 includes a cabinet 110 and a cabinet door 120, the lock device includes a lock assembly 200 and a lock plug 300, one of the lock assembly 200 and the lock plug 300 is arranged on the cabinet 110, and the other is arranged on the cabinet door 120; the lock plug 300 has a lock slot 310; the lock assembly 200 includes an electric control lock 210, a latch 220 and a mounting shell 230, the electric control lock 210 and the latch 220 are arranged in the mounting shell 230, a through hole 231 is arranged on the side of the mounting shell 230 facing the lock slot 310, the through hole 231 is used for the lock plug 300 to pass through, the electric control lock 210 includes a driving piece 211 and a lock tongue 212 arranged on the side corresponding to the lock slot 310, the lock tongue 212 is drivingly connected with the driving piece 211, the latch 220 includes a first reset piece 221 and a clamping piece 222, the clamping piece 222 is located at the top of the lock slot 310, the first reset piece 221 is arranged between the clamping piece 222 and the top of the mounting shell 230, the first reset piece 221 is used to make the clamping piece 222 have a tendency to move towards the lock slot 310, the lock device has a door closed and locked state in which the lock tongue 212 is clamped in the lock slot 310, a door closed and unlocked state in which the lock tongue 212 is released from the lock slot 310 and the clamping piece 222 is clamped in the lock slot 310, and an open door and unlocked state in which the lock tongue 212 and the clamping piece 222 are released from the lock slot 310.

[0039] Specifically, the lock assembly 200 comprises the electrically controlled lock 210 and the locking piece 220, so that the refrigerator 100 has a door closed and locked state, a door closed and unlocked state and a door opened and unlocked state. It can be understood that when the user uses the refrigerator 100 and leaves home, the electrically controlled lock 210 can lock the lock plug 300, i.e. lock the box door 120, to prevent the box door 120 from being opened by children, pets and the like, so as to prevent the cold air in the refrigerator 100 from being discharged into the storage cavity of the refrigerator 100, thereby causing the food to be damaged. Moreover, when the user accidentally triggers the switch of the electrically controlled lock 210 without realizing it, although the driving piece 211 drives the lock tongue 212 to be released from the lock slot 310, the locking piece 220 can be clamped into the lock slot 310, so as to avoid the box door 120 from being opened, thereby preventing the cold air in the refrigerator 100 from being discharged outside the storage cavity of the refrigerator 100, and further preventing the food from being damaged. When the user needs to open the box door 120, the switch of the electrically controlled lock 210 can be triggered, and then the box door 120 is pulled, so that the top of the lock plug 300 abuts against the locking piece 222, the locking piece 222 moves upward to avoid, and then the box door 120 is opened. Although the lock device is provided with double locking, the box door 120 can be opened without additional steps, and the operation is simple. It can be seen that the technical scheme of the present application can prevent the box door 120 from being opened by mistake, so as to prevent the food in the storage cavity from being damaged.

[0040] Further, in the embodiment, the lock plug 300 is arranged on the box door 120, and the lock assembly is arranged on the box body 110.

[0041] It should be noted that when the lock device tends to the door closed and locked state, the lock slot 310 moves towards the lock assembly 200, the lock plug 300 abuts against the locking piece 222, so that the locking piece 222 moves upward to avoid, and when the locking piece 222 avoids beyond the highest point of the top of the lock plug 300, the locking piece 222 moves downward under the action of the first reset piece 221, and at this time the locking piece 222 abuts against the lock tongue 212 located on the side of the lock plug 300, so that the locking piece 222 cannot continue to move downward. Moreover, the lock plug 300 abuts against the lock tongue 212 at the same time, so that the lock tongue 212 avoids, and when the lock slot 310 moves to the position of the lock tongue 212, the lock tongue 212 is clamped into the lock slot 310, thereby achieving the door closed and locked state, i.e. the box door 120 is closed.

[0042] When the lock device tends to the door closed and unlocked state, the lock plug 300 does not move, and only the driving piece 211 drives the lock tongue 212 to be released from the lock slot 310. Since the locking piece 222 is not blocked by the lock tongue 212, and the lock slot 310 is located below the locking piece 222, the locking piece 222 is clamped into the lock slot 310 under the action of the first reset piece 221, thereby achieving the door closed and unlocked state.

[0043] When the lock device tends to open the door, the driving member 211 drives the lock tongue 212 to be released from the lock slot 310. Since the blocking member 222 is not blocked by the lock tongue 212 and the lock slot 310 is below the blocking member 222, the blocking member 222 is clamped into the lock slot 310 under the action of the first reset member 221. The user pulls the box door 120, and the lock plug 300 moves away from the lock assembly 200. The top of the lock plug 300 abuts against the blocking member 222, and the blocking member 222 moves upward to avoid the abutment. The blocking member 222 moves upward to be above the lock tongue 212, and the blocking member 222 no longer blocks the lock tongue 212. However, since the lock plug 300 is displaced, the lock tongue 212 abuts against the wall of the lock plug 300. When the lock plug 300 continues to be pulled out, the blocking member 222 gradually moves upward to the highest point and then moves downward under the action of the first reset member 221. The blocking member 222 is abutted by the lock tongue 212 and cannot continue to move downward. When the lock plug 300 is completely pulled out, the lock tongue 212 returns to the initial position, and the door is opened.

[0044] Further, the control device of the electric lock 210 can be a remote controller or a button provided on the box door 120, which is not specifically limited herein.

[0045] With reference to Figures 2-4 Optionally, the blocking lock 220 comprises a limiting member 223 movably arranged in the top wall of the mounting shell 230. One end of the limiting member 223 is fixed to the blocking member 222, and the other end is provided with a limiting portion arranged outside the mounting shell 230. Specifically, the top wall of the mounting shell 230 is provided with a through hole, and the diameter of the through hole is smaller than the width of the blocking member 222 and the width of the limiting portion. The limiting member 223 is movably arranged in the through hole, so that the limiting member 223 can move upward and downward. When the blocking member 222 is moved upward by the abutment of the lock plug 300, the limiting member 223 also moves upward. Since the blocking member 222 is larger than the through hole, the position of the upward movement of the blocking member 222 is limited. When the blocking member 222 moves downward under the action of the first reset member 221, the limiting portion limits the position of the downward movement of the blocking member 222, because the diameter of the through hole is smaller than the width of the limiting portion. In this way, the movement position of the blocking member 222 can be prevented from exceeding the range, so that the elasticity of the first reset member 221 is not damaged, and the service life of the blocking lock 220 is ensured. Furthermore, the limiting member 223 can guide the movement direction of the blocking member 222, so that the movement direction of the blocking member 222 is not inclined, and the blocking member 222 cannot be clamped into the lock slot 310.

[0046] Further, in an embodiment, the limiting member 223 is configured as a screw, and the limiting portion is the head of the screw; since the screw can be directly fixed with the clamping member 222 without the aid of other fasteners, configuring the limiting member 223 as a screw is conducive to reducing the cost, and the head of the screw is larger than the body of the screw, which can serve as the limiting portion, directly configuring the screw as the limiting member 223 can avoid re-opening the mold, thereby reducing the mold opening cost and being conducive to reducing the cost. Of course, the present application is not limited thereto, and in other embodiments, the limiting member 223 can also be a combination of a slide column and a limiting plate, that is, the limiting plate is arranged at one end of the slide column, and the other end of the slide column is connected with the clamping member 222, and the slide column is movably arranged in the through hole.

[0047] Further, in an embodiment, the first reset member 221 is configured as a reset spring, which is because the reset spring not only has large elasticity and is easy to deform, but also is conducive to promoting the clamping member 222 to move towards the locking slot 310, and the reset spring can also moderate the impact and absorb the vibration, which can moderate the excessive impact force on the clamping member 222 caused by the excessive movement speed of the lock plug 300, thereby avoiding damage to the clamping member 222 and the first reset member 221, and thus increasing the service life of the lock catch 220. Of course, the present application is not limited thereto, and in other embodiments, the first reset member 221 can also be configured as an elastic sheet.

[0048] Further, the reset spring is sleeved on the body of the screw, one end of the reset spring is connected with the clamping member 222, and the other end is connected with the top shell wall of the mounting shell 230, which can make the structure of the lock catch 220 more compact, and also avoid the lateral deformation of the reset spring.

[0049] Further, in an embodiment, the lower end of the clamping member 222 is provided with a first guide inclined surface 222a on each of the opposite sides, that is, the lower end of the clamping member 222 is provided with the first guide inclined surface 222a on the side facing the through hole 231 and the side away from the through hole 231, so that when the lock plug 300 moves towards the lock assembly 200, the lock plug 300 can abut against the first guide inclined surface 222a arranged on the side facing the through hole 231, so that the clamping member 222 can gradually avoid upwards along the first guide inclined surface 222a, which is conducive to guiding the lock plug 300 to push the clamping member 222 when closing the door. When the lock plug 300 moves away from the lock assembly 200, the lock plug 300 can abut against the first guide inclined surface 222a arranged on the side away from the through hole 231, so that the clamping member 222 can gradually avoid upwards along the first guide inclined surface 222a, which is conducive to guiding the lock plug 300 to push the clamping member 222 when opening the door.

[0050] Further, in an embodiment, the two opposite sides of the slot wall of the lock slot 310 near the lock assembly 200 are respectively provided with a second guide slope 320, that is, the top of one end of the lock plug 300 near the lock assembly 200 is provided with two second guide slopes 320, one second guide slope 320 is arranged on the side facing the lock slot 310, and the other second guide slope 320 is arranged on the side away from the lock slot 310, so that when the lock plug 300 moves in the direction close to the lock assembly 200, the second guide slope 320 arranged away from the lock slot 310 can abut against the clamping piece 222, so that the clamping piece 222 can gradually move upward along the second guide slope 320 to avoid, which is beneficial to guide the lock plug 300 to push the clamping piece 222 when closing the door. When the lock plug 300 moves in the direction away from the lock assembly 200, the second guide slope 320 arranged facing the lock slot 310 can abut against the clamping piece 222, so that the clamping piece 222 can gradually move upward along the second guide slope 320 to avoid, which is beneficial to guide the lock plug 300 to push the clamping piece 222 when closing the door.

[0051] Further, the two opposite sides of the lower end of the clamping piece 222 are respectively provided with a first guide slope 222a, and the two opposite sides of the slot wall of the lock slot 310 near the lock assembly 200 are respectively provided with a second guide slope 320. Thus, when the lock device tends to be in the closed and locked state, the lock plug 300 moves in the direction close to the lock assembly 200, the second guide slope 320 arranged away from the lock slot 310 abuts against the first guide slope 222a arranged facing the through hole 231 to make the clamping piece 222 move upward, which is beneficial to guide the lock plug 300 to push the clamping piece 222 when closing the door, so that the latch 212 is clamped into the lock slot 310; when the lock device tends to be in the closed and unlocked state, the driving piece 211 drives the latch 212 to be released from the lock slot 310, and the clamping piece 222 is clamped into the lock slot 310; when the lock device tends to be in the open and unlocked state, the lock plug 300 moves in the direction away from the lock assembly 200, the second guide slope 320 arranged facing the lock slot 310 abuts against the first guide slope 222a arranged away from the through hole 231 to make the clamping piece 222 move upward, which is beneficial to guide the lock plug 300 to push the clamping piece 222 when closing the door, so that the clamping piece 222 is released from the lock slot 310.

[0052] Optionally, the side of the free end of the latch 212 facing the through hole 231 is provided with a third guide slope 212a, when the lock device tends to be in the closed state, the lock plug 300 moves in the direction close to the lock assembly 200, the lock plug 300 abuts against the third guide slope 212a, the lock plug 300 moves along the third guide slope 212a, and the latch 212 is clamped into the lock slot 310. It can be understood that the arrangement of the third guide slope 212a is beneficial to guide the lock slot 310 to push the latch 212. Of course, the present application is not limited to this, and in other embodiments, the insertion end of the lock plug 300 is provided with a fourth guide slope facing the side of the latch 212, and the fourth guide slope abuts against the latch 212.

[0053] Optionally, the locking device 220 comprises a mounting base 224 fixed with the top wall of the mounting shell 230, one end of the first reset member 221 is connected with the mounting base 224, and the other end is connected with the clamping member 222. It can be understood that in this way, the locking device 220 is integrally mounted on the mounting base 224 to form a locking assembly, which is integrally mounted on the top wall of the mounting shell 230. This is conducive to increasing the installation efficiency. Of course, the present application is not limited to this, and in other embodiments, the locking device 220 can not be provided with the mounting base 224, and one end of the first reset member 221 is directly connected with the top wall of the mounting shell 230, and the other end is connected with the clamping member 222.

[0054] Further, in the present embodiment, the mounting base 224 is provided with a through hole, and the top wall of the mounting shell 230 is provided with a mounting hole corresponding to the mounting base 224, and the limiting member 223 is arranged in the through hole of the mounting base 224.

[0055] Further, the mounting base 224 is screw-connected with the top wall of the mounting shell 230. This is because the screw connection has low processing requirements, simple structure, convenient assembly and disassembly, and low price. This is conducive to reducing the production cost of the locking device and increasing the installation efficiency. Of course, the present application is not limited to this, and in other embodiments, the mounting base 224 can be snap-connected with the top wall of the mounting shell 230.

[0056] Further, the mounting base 224 has a mounting cavity, the clamping member 222 is arranged in the mounting cavity and moves up and down along the cavity wall of the mounting cavity, and the first reset member 221 is arranged between the clamping member 222 and the top cavity wall of the mounting cavity. It can be understood that the mounting cavity has an opening towards the lock slot 310, so that the clamping member 222 can be clamped into the lock slot 310. The mounting cavity is arranged to limit the movement direction of the clamping member 222, thereby ensuring the stability of the movement of the clamping member 222.

[0057] Further, the side cavity walls of the mounting cavity on the opposite sides are each provided with a weight-reducing hole near the top. The weight-reducing hole is arranged to reduce the weight of the mounting base 224, and the operator can operate the limiting member 223 and the clamping member 222 and the first reset member 221 through the weight-reducing hole, so that the installation of the clamping member 222, the limiting member 223 and the first reset member 221 is more convenient.

[0058] Further, the driving member 211 is configured as an electromagnet 211a and a second reset member 211b, the electromagnet 211a is used to drive the lock tongue 212 to move away from the lock slot 310, and the second reset member 211b is arranged between the electromagnet 211a and the lock tongue 212, and is used to drive the lock tongue 212 to move towards the lock slot 310. It can be understood that, in the working process of the electric lock 210, the electromagnet 211a is powered on, the electromagnet 211a after being powered on has magnetism, and can generate a magnetic attraction force to attract the lock tongue 212, so that the lock tongue 212 moves away from the lock slot 310, and is released from the lock slot 310, and when the electric lock 210 is powered off, the magnetic force of the electromagnet 211a disappears, and the lock tongue 212 is bounced back to the initial position under the action of the second reset member 211b. The electric lock 210 has a simple structure and is convenient to control. Of course, the present application is not limited to this, and in other embodiments, the driving member 211 is configured as a motor.

[0059] Further, the lock tongue 212 is provided with a reset plate, one end of the second reset member 211b is connected with the reset plate, and the other end is connected with the electromagnet 211a.

[0060] Further, the second reset member 211b is configured as a reset spring, because the reset spring is easy to deform and has large elasticity, which is beneficial to drive the lock tongue 212 to move towards the lock slot 310, and the reset spring can also moderate the impact and absorb the vibration, so that the impact force caused by the too fast movement of the lock plug 300 on the lock tongue 212 can be moderated, and damage to the second reset member 211b can be avoided, thereby increasing the service life of the electric lock 210. Of course, the present application is not limited to this, and in other embodiments, the second reset member 211b can also be configured as an elastic sheet.

[0061] Further, in this embodiment, the electric lock 210 is a long-time non-powered electromagnetic lock, that is, the power is turned off immediately after being unlocked, because such an electromagnetic lock can reduce the power consumption and reduce the wear of the electromagnet 211a, and the long-time non-powered electromagnetic lock will not cause electric shock danger to the human body.

[0062] In addition, the long-time non-powered electromagnetic lock on the market can restore the locking ability after being powered on for a short time, and when the power is turned on to unlock, if the door is not opened in time, the electromagnetic lock will be locked again, and the door can be opened only by unlocking again, which is troublesome. The present application adds the lock catch 220, when the lock tongue 212 of the electric lock 210 is released from the lock slot 310, the locking member 222 of the lock catch 220 is immediately locked into the lock slot 310, thereby preventing the electric lock 210 from being locked again.

[0063] Optionally, the lock assembly 200 further comprises a manual lock 240, the manual lock 240 is arranged corresponding to the lock tongue 212, and the manual lock 240 is used to drive the lock tongue 212 to move away from the lock slot 310; it can be understood that when the electric control lock 210 cannot be used after power failure, the lock tongue 212 cannot be retracted and unlocked, the manual lock 240 is started, the manual lock 240 pushes the lock tongue 212 to retract away from the lock slot 310, and after the electric control lock 210 is pushed to retract, the clamping piece 222 will be lowered and clamped into the lock slot 310, so that the pure mechanical manual door opening is realized.

[0064] Further, the manual lock 240 comprises a push rod 241 and a third reset piece 242, the push rod 241 is provided with a pushing part 241a, the mounting shell 230 is provided with a mounting plate 232, the mounting plate 232 is provided with a first pushing hole 232a, the mounting shell 230 is provided with a second pushing hole 233 corresponding to the first pushing hole 232a, the push rod 241 is movably arranged in the first pushing hole 232a and the second pushing hole 233, and the pushing part 241a is located between the first pushing hole 232a and the second pushing hole 233, and the third reset piece 242 is arranged between the pushing part 241a and the mounting plate 232; it can be understood that the push rod 241 is pressed, the push rod 241 will push the lock tongue 212, the lock tongue 212 will retract away from the lock slot 310, when the push rod 241 pushes the electric control lock 210 to retract, the clamping piece 222 will be lowered and clamped into the lock slot 310, and the push rod 241 will return to the original state under the action of the third reset piece 242, such a manual lock 240 has a simple structure, materials are easy to purchase, and is convenient for popularization and application. Of course, the present application is not limited to this, in other embodiments, the manual lock 240 can also comprise an unlocking pin, two limiting plates are arranged on the unlocking pin at intervals, the distance between the two limiting plates is the unlocking displacement of the unlocking pin, the mounting plate 232 is provided with a first pushing hole 232a, the mounting shell 230 is provided with a second pushing hole 233 corresponding to the first pushing hole 232a, the unlocking pin is movably arranged in the first pushing hole 232a and the second pushing hole 233, and the second pushing hole 233 is located between the two limiting plates, after the electric control lock 210 is pushed to retract, the unlocking pin is pulled to reset.

[0065] Further, the third reset piece 242 is configured as a reset spring, because the reset spring is easy to deform and has large elasticity, which is beneficial to reset the push rod 241. Of course, the present application is not limited to this, in other embodiments, the second reset piece 211b can also be configured as an elastic sheet.

[0066] The present application also provides a refrigerator, the refrigerator comprises a cabinet, a cabinet door and a lock device, the specific structure of the lock device is referred to the above embodiments, because the refrigerator adopts all the technical solutions of the above embodiments, at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here. Among them, one of the lock assembly of the lock device and the lock insertion of the lock device is arranged on the cabinet, and the other is arranged on the cabinet door.

[0067] The above merely describes optional embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields, or the like, made under the inventive concept of the present application, using the content of the present application specification and drawings, are included in the patent protection scope of the present application.

Claims

1. A lock device for a refrigerator, the refrigerator including a cabinet and a door, characterized by, The lock device comprises a lock assembly and a lock plug, one of which is arranged on the cabinet and the other of which is arranged on the cabinet door; The lock plug has a lock slot; The lock assembly comprises an electric lock, a latch and a mounting shell, the electric lock and the latch are arranged in the mounting shell, a through hole is arranged on the side of the mounting shell facing the lock slot, the through hole is used for the lock plug to pass through, the electric lock comprises a driving member and a lock bolt corresponding to the side of the lock slot, the lock bolt is in driving connection with the driving member, the latch comprises a first reset member and a clamping member, the clamping member is located at the top of the lock slot, the first reset member is arranged between the clamping member and the top of the mounting shell, the first reset member is used to make the clamping member have a tendency to move towards the lock slot, The lock device has a door closing and locking state in which the lock bolt is clamped in the lock slot and the lock slot is located below the clamping member, a door closing and unlocking state in which the lock bolt is loosened from the lock slot and the clamping member is clamped in the lock slot, and an open door and unlocking state in which the lock bolt and the clamping member are both loosened from the lock slot; The lock assembly further comprises a manual lock corresponding to the lock bolt, the manual lock is used to drive the lock bolt to move away from the lock plug.

2. The lock device of claim 1, wherein The latch comprises a limiting member, the limiting member is movably arranged in the top wall of the mounting shell, one end of the limiting member is fixed with the clamping member, and the other end of the limiting member is provided with a limiting portion, and the limiting portion is arranged outside the mounting shell.

3. The lock device of claim 2, wherein The limiting member is configured as a screw, and the limiting portion is the head of the screw; and / or The first reset member is configured as a reset spring.

4. The lock device of claim 1, wherein Opposite sides of the lower end of the clamping member are respectively provided with a first guide inclined surface, and / or opposite sides of the slot wall of the lock slot close to the lock assembly are respectively provided with a second guide inclined surface; When the lock device tends to the door closing and locking state, the lock plug moves towards the lock assembly, the second guide inclined surface abuts against the first guide inclined surface to make the clamping member move upwards; when the lock device tends to the open door and unlocking state, the lock plug moves away from the lock assembly, the second guide inclined surface abuts against the first guide inclined surface to make the clamping member move upwards.

5. The lock device of claim 1, wherein A side of the free end of the lock bolt facing the through hole is provided with a third guide inclined surface, when the lock device tends to the door closing state, the lock plug moves towards the lock assembly, the lock plug abuts against the third guide inclined surface to make the lock plug move along the third guide inclined surface.

6. The lock apparatus of claim 1, wherein The latch comprises a mounting seat, the mounting seat is fixed with the top wall of the mounting shell, one end of the first reset member is connected with the mounting seat, and the other end of the first reset member is connected with the clamping member.

7. The lock device of claim 6, wherein The mounting seat has a mounting cavity, the clamping member is arranged in the mounting cavity and moves up and down along the cavity wall of the mounting cavity, and the first reset member is arranged between the clamping member and the top cavity wall of the mounting cavity.

8. The lock apparatus of claim 1 wherein, The driving member is configured as an electromagnet and a second reset member, the electromagnet is used to drive the lock bolt to move away from the lock slot, and the second reset member is arranged between the electromagnet and the lock bolt to make the lock bolt move towards the lock slot.

9. The lock device of claim 8, wherein The manual lock comprises a push rod and a third reset member, the push rod is provided with a pushing part, the mounting shell is provided with a mounting plate, the mounting plate is provided with a first pushing hole, the mounting shell is provided with a second pushing hole corresponding to the first pushing hole, the push rod is movably arranged in the first pushing hole and the second pushing hole, and the pushing part is located between the first pushing hole and the second pushing hole, and the third reset member is arranged between the pushing part and the mounting plate.

10. A refrigerator characterized by comprising: The box comprises a box body, a box door and the lock device as claimed in any one of claims 1 to 9, one of the lock assembly of the lock device and the lock plug of the lock device is arranged in the box body, and the other is arranged in the box door.

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