CN216341527U - Lock catch structure - Google Patents

Abstract

The utility model relates to a lock catch structure which is used for locking a refrigerator body and a refrigerator door of a refrigerator. The first locking component is used for being fixedly connected to the box body. The second latch assembly is adapted to be rotatably coupled to the housing. The third locking assembly is used for being fixedly connected with the box door, and the second locking assembly can rotate by a preset angle and is matched with the third locking assembly so as to lock the box body and the box door. When the second locking component is matched with the third locking component, the movable inserting tongue can be inserted into the locking groove so as to prevent the second locking component from rotating. The lock catch structure provided by the utility model is simple in structure, the production cost of the lock catch structure is greatly reduced, the lock catch structure is simple and convenient to operate, and the operation difficulty of operators is reduced.

Description

Lock catch structure

Technical Field

The utility model relates to the technical field of locks, in particular to a lock catch structure.

Background

A refrigerator is an appliance that maintains a low temperature by keeping the interior contents in a constant low-temperature cold state to prevent the deterioration thereof. Besides being used for storing food, the refrigerator can also be used for storing valuable articles such as laboratory samples and the like according to different application scenes, and thus the refrigerator needs to be locked to ensure the safety of the samples stored in the refrigerator. The structure of the lock on the existing refrigerator is complex, so that the production cost is high.

SUMMERY OF THE UTILITY MODEL

In view of this, it is necessary to provide a latch structure with a simple structure, so as to solve the problem of the complex structure of the lock on the existing refrigerator, which results in higher production cost of the lock.

The utility model provides a lock catch structure which is used for locking a refrigerator body and a refrigerator door of a refrigerator. The first locking component is used for being fixedly connected to the box body. The second latch assembly is adapted to be rotatably coupled to the housing. The third locking assembly is used for being fixedly connected with the box door, and the second locking assembly can rotate by a preset angle and is matched with the third locking assembly so as to lock the box body and the box door. When the second locking component is matched with the third locking component, the movable inserting tongue can be inserted into the locking groove so as to prevent the second locking component from rotating.

In an embodiment of the utility model, the lock slot is disposed in the second lock component, the first lock component includes an electric mortise lock and a controller, the electric mortise lock includes a lock body and a lock tongue capable of extending out of or retracting into the lock body, the lock tongue constitutes a movable insert tongue, and the controller is electrically connected to the electric mortise lock to control the movable insert tongue to move. So, be favorable to improving the intelligent degree of hasp structure.

In an embodiment of the utility model, the first locking assembly further includes a warning light electrically connected to the controller, the controller controls the warning light to be in a first state when the electric plug lock drives the movable bolt to retract, and controls the warning light to be in a second state when the movable bolt is inserted into the lock slot. Therefore, the warning lamp is favorable for prompting operators, and the condition that the door of the box is not closed is reduced.

In an embodiment of the utility model, the first locking assembly further includes a cable converter, and the controller is electrically connected to the electric latch and the warning light through the cable converter respectively; the electric mortiser lock passes through first cable electricity and connects the cable converter, and the warning light passes through second cable electricity and connects the cable converter, and the cable converter passes through third cable electricity connection controller. The size of the power line extending out of the parts in the first lock catch assembly can be unified, and the overall attractiveness of the lock catch structure is improved.

In an embodiment of the utility model, the locking structure further includes a camera electrically connected to the controller, when the electric mortise lock drives the movable bolt to retract, the controller controls the camera to open, and when the movable bolt is inserted into the lock slot, the controller controls the camera to close. Therefore, the process of sampling by opening the refrigerator by an operator can be monitored in real time.

In an embodiment of the utility model, the second locking assembly includes a second housing, one end of the second housing is provided with a locking groove, the other end of the second housing is provided with a communication hole, and the communication hole is communicated with the locking groove. When the movable bolt is inserted into the lock groove, an external tool can penetrate through the communication hole from one end of the communication hole far away from the lock groove and enter the lock groove so as to push the movable bolt to exit the lock groove. Therefore, the situation that the movable inserting tongue cannot retract due to the fact that the lock catch structure fails and then the box door cannot be opened is avoided.

In an embodiment of the utility model, the connecting hole is internally provided with an abutting member and a return spring, the abutting member is movably arranged in the connecting hole, one end of the return spring is connected with the second shell, and the other end of the return spring is connected with the abutting member. When an external tool applies pressure to the abutting piece from one end, far away from the lock groove, of the communication hole, the abutting piece can overcome the elastic force of the return spring to move towards the lock groove, and the movable inserting tongue is pushed to exit from the lock groove. When the external tool withdraws from the communication hole, the return spring can push the abutting piece to move towards the direction far away from the lock groove so as to enable the abutting piece to withdraw from the lock groove.

In an embodiment of the utility model, the second locking assembly is provided with a second locking portion, the third locking assembly is provided with a third locking portion, and when the second locking assembly is matched with the third locking assembly to lock the box body and the box door, the second locking portion abuts against one side of the third locking portion.

In an embodiment of the utility model, the second locking component includes a sheet metal part and a rotating shaft, the rotating shaft is fixedly arranged in the box body, one end of the sheet metal part is provided with a rotating hole, and the rotating shaft passes through the rotating hole and is in rotating fit with the rotating hole, so that the second locking component is rotatably connected to the box body; one end of the sheet metal part, which is far away from the rotating hole, is bent towards one side to form a second locking part. Through setting up the sheet metal component, improved the structural strength of second hasp subassembly greatly. And the second locking part and the rotating hole are arranged on the sheet metal part, so that the processing difficulty of the second lock catch component is reduced, and the processing cost of the lock catch structure is further reduced.

In an embodiment of the utility model, the second locking assembly further includes a fixing member, one end of the fixing member is fixedly connected to the rotating shaft, and the other end of the fixing member is detachably connected to the box body through a fastening member.

According to the lock catch structure provided by the utility model, the second lock catch component is matched with the third lock catch component through the rotation of the second lock catch component, so that the box door is prevented from rotating around the box body. And the lock catch structure prevents the second lock catch component from rotating through the matching of the movable inserting tongue and the lock groove, so that the second lock catch component is prevented from rotating to be separated from the third lock catch component, the second lock catch component and the third lock catch component are kept in a stable matching state, and the anti-theft performance of the lock catch structure is greatly improved. In conclusion, the lock catch structure provided by the utility model is simple in structure, the production cost of the lock catch structure is greatly reduced, the lock catch structure is simple and convenient to operate, and the operation difficulty of operators is reduced.

Drawings

Fig. 1 is a schematic structural view of a refrigerator with a locking structure according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a latch structure according to an embodiment of the utility model;

fig. 3 is a partial schematic structural view of a latch structure according to an embodiment of the utility model;

FIG. 4 is a block diagram of a control circuit according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of an abutting member according to an embodiment of the utility model;

fig. 6 is a schematic structural diagram of a fixing member connected with a rotating shaft according to an embodiment of the present invention.

Reference numerals: 100. an external tool; 200. a refrigerator; 201. a box door; 202. a box body; 1. a first locking assembly; 11. an electric mortise lock; 111. a lock body; 112. a movable insertion tongue; 12. a controller; 13. a warning light; 14. a buzzer; 15. a first housing; 16. a cover plate; 17. a cable converter; 2. a second latch assembly; 21. a second housing; 211. locking the groove; 212. a communicating hole; 213. a first through hole; 214. an accommodating chamber; 215. a second through hole; 216. a guide structure; 217. a guide channel; 218. a raised structure; 219. fastening screws; 22. an abutting member; 221. a support portion; 222. an abutting portion; 23. a return spring; 24. a movable groove; 25. a second locking portion; 26. a sheet metal part; 261. rotating the hole; 262. mounting holes; 27. a rotating shaft; 28. a fixing member; 3. a third locking assembly; 31. a third locking portion; 32. an installation part.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

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

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

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

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

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

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, the refrigerator 200 is an appliance for maintaining a low temperature by keeping the interior contents in a constant low-temperature cold state to prevent the deterioration thereof. In addition to storing food, the refrigerator 200 may also be used to store valuable items such as laboratory samples according to different application scenarios, and thus, the refrigerator 200 needs to be locked to ensure the safety of the samples stored in the refrigerator 200. The lock of the conventional refrigerator 200 has a complicated structure and thus has a high production cost. Generally, the refrigerator 200 includes a cabinet 202 and a door 201, and one side of the door 201 is hinged to the cabinet 202 to enable the door 201 to rotate about a hinge shaft (not shown).

Therefore, in order to lock the door 201 and the cabinet 202, referring to fig. 1 to 3, the present invention provides a latch structure with a simple structure, which locks the door 201 and the cabinet 202 by preventing the door 201 from rotating around the hinge shaft. Specifically, the latch structure includes a second latch assembly 2 and a third latch assembly 3. The second latch assembly 2 is mounted on the housing 202, and the second latch assembly 2 is rotatably connected to the housing 202. The third latch assembly 3 is mounted on the door 201, and the third latch assembly 3 is fixedly connected to the door 201. It should be noted that the fixed connection includes a detachable connection and a non-detachable connection, specifically, the detachable connection includes a threaded connection through a fastener and a snap connection through a snap structure, and the non-detachable connection includes welding, riveting, and the like, which are not listed here. In order to improve the coupling efficiency and enhance the structural strength of the locker structure, the second locker assembly 2 is threadedly coupled to the cabinet 202 by a fastening member in the present embodiment.

Further, the second latch assembly 2 can be rotated by a predetermined angle and engaged with the third latch assembly 3 to lock the cabinet 202 and the door 201. At this time, under the cooperation of the second latch assembly 2 and the third latch assembly 3, the door 201 cannot rotate in a direction away from the cabinet 202, so that the door 201 is locked with the cabinet 202 by preventing the door 201 from rotating about the hinge shaft. Also, in order to improve the rotation efficiency of the second locker module 2, the predetermined angle by which the second locker module 2 is rotated is generally set to 90 °.

Furthermore, in order to improve the anti-theft performance of the locking structure, the locking structure further includes a first locking component 1, the first locking component 1 is mounted on the box 202, and the first locking component 1 is fixedly connected with the box 202. One of the first and second locking components 1 and 2 is provided with a movable insertion tongue 112, and the other is provided with a locking groove 211 corresponding to the movable insertion tongue 112, when the second locking component 2 is matched with the third locking component 3, the movable insertion tongue 112 can be inserted into the locking groove 211 to prevent the second locking component 2 from rotating. In this embodiment, the movable latch 112 is disposed on the first latch assembly 1, and the locking slot 211 is disposed on the second latch assembly 2. In other embodiments, the movable latch 112 is disposed on the second locking assembly 2, and the locking slot 211 is disposed on the first locking assembly 1. In any case, the movable insertion tongue 112 is inserted into the locking groove 211, so that the second latch assembly 2 is prevented from rotating, and the second latch assembly 2 and the third latch assembly 3 are kept in a stable matching state, thereby achieving the firm locking of the box body 202 and the box door 201.

As can be seen from the above, the latch structure provided by the present invention realizes the cooperation between the second latch assembly 2 and the third latch assembly 3 through the rotation of the second latch assembly 2, so as to prevent the box door 201 from rotating around the box body 202. In addition, the locking structure prevents the second locking assembly 2 from rotating through the matching of the movable insertion tongue 112 and the locking groove 211, so that the second locking assembly 2 is prevented from being separated from the third locking assembly 3 due to the rotation of the second locking assembly 2, the second locking assembly 2 and the third locking assembly 3 are kept in a stable matching state, and the anti-theft performance of the locking structure is greatly improved. In conclusion, the lock catch structure provided by the utility model is simple in structure, the production cost of the lock catch structure is greatly reduced, the lock catch structure is simple and convenient to operate, and the operation difficulty of operators is reduced.

In order to increase the intelligence of the lock catch structure, in an embodiment, as shown in fig. 1 to 4, the lock slot 211 is provided in the second lock catch assembly 2, the first lock catch assembly 1 includes an electric plug 11 and a controller 12, the electric plug 11 includes a lock body 111 and a lock tongue capable of extending out of or retracting into the lock body 111, the lock tongue constitutes a movable plug 112, and the controller 12 is electrically connected to the electric plug 11 to control the movable plug 112 to move. The electric mortise lock 11 is an existing electronic control lock, and the detailed structure thereof is not described in detail. The main working principle of the electric mortise lock 11 is as follows: after the lock body 111 is powered on, the bolt (i.e., the movable bolt 112) retracts into the lock body 111 under the action of electromagnetic force, and after the lock body 111 is powered off, the bolt (i.e., the movable bolt 112) extends out of the lock body 111 under the action of elastic force. When the second latch assembly 2 rotates by a predetermined angle to engage with the third latch assembly 3, the controller 12 controls the movable insertion tongue 112 of the electric latch 11 to extend out of the lock body 111 and to be inserted into the lock slot 211 to prevent the second latch assembly 2 from rotating, so that the second latch assembly 2 and the third latch assembly 3 maintain a stable engagement state, and thus the cabinet 202 and the door 201 are locked firmly. When it is desired to open the door 201, the controller 12 controls the movable bolt 112 of the electric latch 11 to retract into the lock body 111, so that the second latch assembly 2 rotates and disengages from the second latch assembly 2, and the door 201 can be opened.

The controller 12 may also be connected to a command input module, and the command input module inputs a control command to the controller 12, so that the controller 12 controls the electric mortise lock 11 to operate.

To avoid the situation of the door 201 being lost, in an embodiment, as shown in fig. 3 and 4, the first latch assembly 1 further includes a warning light 13, the warning light 13 is electrically connected to the controller 12, the controller 12 controls the warning light 13 to be in the first state when the electric latch 11 drives the movable latch 112 to retract, and the controller 12 controls the warning light 13 to be in the second state when the movable latch 112 is inserted into the latch slot 211. Thus, the state of the locking structure can be prompted through the state change of the warning lamp 13. In one embodiment, the first state is a lamp-on state and the second state is a lamp-off state. Specifically, when the latch structure is in the unlocking state (at this time, the box door 201 is in the state to be opened or opened), the movable latch 112 is in the retraction state, and at this time, the controller 12 controls the warning light 13 to be turned on to prompt the operator to close and lock the box door 201 in time. When the latch structure is in the locked state (at this time, the door 201 is in the closed and locked state), the movable tongue 112 is in the extended state, and at this time, the controller 12 controls the warning light 13 to be turned off. Thus, whether the door 201 is closed or locked can be found by observing the on or off of the warning lamp 13. But not limited thereto, in other embodiments, the warning light 13 may also indicate the status of the locking structure by emitting lights with different colors, for example, the first status is a status that the warning light 13 emits red light, and the second status is a status that the warning light emits green light. When the movable bolt 112 is in the retracted state, the controller 12 controls the warning light 13 to emit red light, and when the movable bolt 112 is in the extended state, the controller 12 controls the warning light 13 to emit green light, which is not listed here.

Further, in order to prevent the door 201 from being opened for a long time, in one embodiment, as shown in fig. 4, the first latch assembly 1 further includes a buzzer 14, the buzzer 14 is electrically connected to the controller 12, and the controller 12 controls the buzzer 14 to give an alarm when the door 201 is opened for a time exceeding a preset time. The preset time may be set according to needs, for example, one minute, two minutes, ten minutes, or half an hour, which is not listed here.

Generally, the first latch assembly 1 includes a first housing 15, the electric plug lock 11, the warning light 13 and the buzzer 14 are all disposed in the first housing 15, and in order to reduce dust entering into the first housing 15, a cover plate 16 is disposed on one side of the first housing 15, the cover plate 16 is disposed on the first housing 15 and detachably connected to the first housing 15, and the first latch assembly 1 is detachably connected to the box 202 through the cover plate 16. The controller 12 is disposed outside the first housing 15, and the electric plug lock 11, the warning light 13 and the buzzer 14 are all connected to the controller 12 through power lines, and the power lines are exposed out of the cover plate 16 through the through holes on the cover plate 16. The electric mortise lock 11, the warning light 13 and the buzzer 14 can be purchased directly from the market, and therefore, the specifications of the power lines carried by the electric mortise lock 11, the warning light 13 and the buzzer 14 are different. In order to unify the specifications of the power lines of the electric mortise lock 11, the warning lamp 13 and the buzzer 14, the integral aesthetic degree of the lock catch structure is improved. In one embodiment, as shown in fig. 3, the first latch assembly 1 further includes a cable converter 17, and the controller 12 is electrically connected to the buzzer 14, the electric latch 11 and the warning light 13 through the cable converter 17. The electric mortise lock 11 is electrically connected to the cable converter 17 through a first cable (not shown), the warning light 13 is electrically connected to the cable converter 17 through a second cable (not shown), the buzzer 14 is electrically connected to the cable converter 17 through a fourth cable (not shown, the fourth cable is the cable of the buzzer 14), and the cable converter 17 is electrically connected to the controller 12 through a third cable (not shown, the third cable is the output cable of the cable converter 17). Thus, by arranging the cable converter, the power lines extending out of the cover plate 16 can be uniformly arranged into the third cable, and the aesthetic degree of the lock catch structure is greatly improved.

Further, the process of sampling for the operator to open the refrigerator 200 is monitored in real time. In an embodiment, the locking structure further includes a camera (not shown) electrically connected to the controller 12, wherein the controller 12 controls the camera to be turned on when the electric plug-in lock 11 drives the movable plug-in tongue 112 to retract, and the controller 12 controls the camera to be turned off when the movable plug-in tongue 112 is inserted into the lock slot 211.

To avoid the situation that the movable latch 112 cannot retract due to the failure of the locking structure, and further the door 201 cannot be opened. In one embodiment, as shown in fig. 3, the second locking assembly 2 includes a second housing 21, wherein one end of the second housing 21 is provided with a locking groove 211, and the other end is provided with a communication hole 212, and the communication hole 212 is communicated with the locking groove 211. When the movable tongue 112 is inserted into the locking groove 211, the external tool 100 can pass through the communication hole 212 from an end of the communication hole 212 remote from the locking groove 211 and enter the locking groove 211 to push the movable tongue 112 out of the locking groove 211. Specifically, the second housing 21 is provided with a receiving cavity 214 therein, and an outer wall of one side of the second housing 21 is recessed toward the receiving cavity 214 to form a locking groove 211. The communication hole 212 penetrates the groove bottom of the lock groove 211, and a first through hole 213 provided at the groove bottom of the lock groove 211, a partial accommodation chamber 214, and a second through hole 215 provided on a side wall of the second housing 21 on the side away from the lock groove 211 together constitute the communication hole 212. Further, the inner wall of the second through hole 215 extends to a predetermined length toward the locking groove 211 to form a guiding structure 216, a guiding channel 217 communicating the second through hole 215 and the accommodating cavity 214 is arranged in the guiding structure 216, and the external tool 100 sequentially passes through the second through hole 215, the guiding channel 217, the accommodating cavity 214 and the first through hole 213 to enter the locking groove 211, thereby pushing the movable latch 112 to exit the locking groove 211. The external tool 100 is kept by a specially-assigned person in a non-emergency situation, so that an irrelevant person can avoid abusing the external tool 100 to open the locking structure. In this embodiment, the external tool 100 is an elongated rod.

Further, in order to improve the success rate of the external tool 100 to open the locking structure, in one embodiment, as shown in fig. 3 and 5, an abutting piece 22 and a return spring 23 are disposed in the communication hole 212, the abutting piece 22 is movably disposed in the communication hole 212, and one end of the return spring 23 is connected to the second housing 21 and the other end is connected to the abutting piece 22. When the external tool 100 applies pressure to the abutment 22 from the end of the communication hole 212 remote from the lock groove 211, the abutment 22 can move toward the lock groove 211 against the elastic force of the return spring 23 to push the movable tongue 112 out of the lock groove 211. When the external tool 100 is withdrawn from the communication hole 212, the return spring 23 can push the abutment 22 to move away from the lock groove 211, so that the abutment 22 is withdrawn from the lock groove 211. Specifically, a movable groove 24 is disposed on a side of the bottom of the locking groove 211 facing away from the opening of the locking groove 211, and the movable groove 24 is communicated with the locking groove 211 through a first through hole 213. The contact member 22 and the return spring 23 are both disposed in the movable groove 24, and the contact member 22 includes a block-shaped support portion 221 and a round bar-shaped contact portion 222, and the contact portion 222 is connected to one end of the support portion 221. The external tool 100 pushes the support portion 221 to make the abutting portion 222 enter the locking slot 211 through the first through hole 213 and push the movable latch 112 to exit the locking slot 211. The return spring 23 is sleeved outside the abutting portion 222, and two ends of the return spring 23 abut against the supporting portion 221 and the bottom of the movable slot 24 respectively. The joint of the abutting portion 222 and the supporting portion 221 forms a step, so that one end of the return spring 23 abuts against the step. More specifically, the return spring 23 is of a tower shape, and a large diameter end of the return spring 23 abuts against the bottom of the movable groove 24, and a small diameter end of the return spring 23 abuts against one end of the support portion 221 near the abutting portion 222. Thus, the return spring 23 is beneficial to keep stable in the process of extension and retraction.

Typically, the rotation process of the second latch assembly 2 is by manual rotation by an operator. Therefore, in order to facilitate the operator to rotate the second latch assembly 2, in one embodiment, as shown in fig. 1 to 3, the outer side of the second housing 21 is provided with a protrusion 218. The operator applies a rotational force to the second latch assembly 2 by gripping the raised structure 218, which is very convenient.

In one embodiment, as shown in fig. 1 to 3, the second latch assembly 2 is provided with a second locking portion 25, the third latch assembly 3 is provided with a third locking portion 31, and when the second latch assembly 2 and the third latch assembly 3 are engaged to lock the box 202 and the door 201, the second locking portion 25 abuts against one side of the third locking portion 31. Therefore, the matching difficulty of the second locking component 2 and the third locking component 3 is favorably reduced, and the connection tightness of the box body 202 and the box door 201 can be improved.

In the process of rotating the second latch assembly 2 to engage or disengage the second latch assembly 2 with or from the third latch assembly 3 to lock or unlock the refrigerator 200, the second latch assembly 2 is worn out significantly. In order to reduce the degree of wear of the second latch assembly 2, the structural strength of the second latch assembly 2 is increased. In an embodiment, as shown in fig. 3 and fig. 6, the second locking assembly 2 includes a sheet metal part 26 and a rotating shaft 27, the rotating shaft 27 is fixedly disposed on the box 202, a rotating hole 261 is disposed at one end of the sheet metal part 26, and the rotating shaft 27 passes through the rotating hole 261 and is rotatably engaged with the rotating hole 261, so that the second locking assembly 2 is rotatably connected to the box 202. The sheet metal member 26 is bent toward one side at an end thereof remote from the rotation hole 261 to form a second latch 25. The wear resistance of sheet metal component 26 is higher, and sheet metal component 26's structural strength is great, consequently, through setting up sheet metal component 26, has improved the structural strength of second hasp subassembly 2 greatly. Moreover, the second locking portion 25 and the rotation hole 261 are both disposed on the sheet metal part 26, so that the processing difficulty of the second latch assembly 2 is reduced, and the processing cost of the latch structure is further reduced.

Further, as shown in fig. 3, the locking structure further includes a fastening screw 219, a mounting hole 262 adapted to the fastening screw 219 is provided on the sheet metal part 26, and the fastening screw 219 passes through the mounting hole 262 to detachably mount the sheet metal part 26 on the second housing 21. Further, the fastening screw 219 is a self-tapping screw.

In order to improve the sealing performance of the door 201, the second locking portion 25 is closely attached to the third locking portion 31 during the process of matching the second latch assembly 2 with the third latch assembly 3. In order to facilitate the second locking portion 25 to smoothly abut against one side of the third locking portion 31, in an embodiment, as shown in fig. 1 to 3, the third locking assembly 3 includes a mounting portion 32, the third locking assembly 3 is detachably mounted on the door 201 through the mounting portion 32, one edge of the mounting portion 32 extends toward the other side to form a spring structure, and the spring structure constitutes the third locking portion 31. In this way, the third locking portion 31 realizes that the second locking portion 25 is tightly attached to one side of the third locking portion 31 by means of its own elastic deformation.

In one embodiment, to facilitate the installation of the rotating shaft 27, in one embodiment, as shown in fig. 2 and 6, the second locking assembly 2 further includes a fixing member 28, and one end of the fixing member 28 is fixedly connected to the rotating shaft 27, and the other end is detachably connected to the box 202 through a fastening member. Thus, the difficulty of assembling the rotating shaft 27 is reduced.

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

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that suitable changes and modifications of the above embodiments are within the scope of the claimed invention as long as they are within the spirit and scope of the present invention.

Claims (10)

1. A latch structure for locking a cabinet (202) and a door (201) of a refrigerator (200), comprising

The first locking component (1) is fixedly connected to the box body (202);

the second lock catch component (2) is used for being rotatably connected to the box body (202); and

the third lock catch component (3) is fixedly connected to the box door (201), and the second lock catch component (2) can rotate by a preset angle and is matched with the third lock catch component (3) to lock the box body (202) and the box door (201);

one of the first lock catch component (1) and the second lock catch component (2) is provided with a movable inserting tongue (112), the other one is provided with a lock groove (211) corresponding to the movable inserting tongue (112), and when the second lock catch component (2) is matched with the third lock catch component (3), the movable inserting tongue (112) can be inserted into the lock groove (211) to prevent the second lock catch component (2) from rotating.

2. A shackle structure as claimed in claim 1, characterised in that the locking slot (211) is provided in the second shackle component (2); the first lock catch assembly (1) comprises an electric latch (11) and a controller (12), the electric latch (11) comprises a lock body (111) and a lock tongue capable of extending out or retracting into the lock body (111), the lock tongue forms the movable insert tongue (112), and the controller (12) is electrically connected with the electric latch (11) to control the movable insert tongue (112) to move.

3. A latch structure according to claim 2, wherein the first latch assembly (1) further comprises a warning light (13), the warning light (13) is electrically connected to the controller (12), when the electric latch (11) drives the movable bolt (112) to retract, the controller (12) controls the warning light (13) to be in a first state, and when the movable bolt (112) is inserted into the latch slot (211), the controller (12) controls the warning light (13) to be in a second state.

4. A latch construction according to claim 3, characterized in that the first latch assembly (1) further comprises a cable converter (17), the controller (12) electrically connecting the electric latch (11) and the warning light (13) respectively through the cable converter (17); the electric mortise lock (11) is electrically connected with the cable converter (17) through a first cable, the warning lamp (13) is electrically connected with the cable converter (17) through a second cable, and the cable converter (17) is electrically connected with the controller (12) through a third cable.

5. A latch structure according to claim 2, characterized in that the latch structure further comprises a camera electrically connected to the controller (12), wherein the controller (12) controls the camera to be turned on when the electric latch (11) drives the movable latch (112) to retract, and the controller (12) controls the camera to be turned off when the movable latch (112) is inserted into the latch slot (211).

6. A latch structure according to claim 1, characterized in that the second latch assembly (2) comprises a second housing (21), the second housing (21) having the latch groove (211) at one end and a communication hole (212) at the other end, the communication hole (212) communicating with the latch groove (211);

when the movable bolt (112) is inserted into the lock groove (211), an external tool (100) can pass through the communication hole (212) from one end of the communication hole (212) far away from the lock groove (211) and enter the lock groove (211) to push the movable bolt (112) to exit the lock groove (211).

7. A latch construction according to claim 6, characterized in that an abutment (22) and a return spring (23) are provided in the communication hole (212), the abutment (22) being movably provided in the communication hole (212), the return spring (23) being connected at one end to the second housing (21) and at the other end to the abutment (22);

when an external tool (100) applies pressure to an abutting piece (22) from one end of the communication hole (212) far away from the lock groove (211), the abutting piece (22) can move towards the lock groove (211) against the elastic force of the return spring (23) to push the movable insertion tongue (112) to exit from the lock groove (211);

when the external tool (100) withdraws from the communication hole (212), the return spring (23) can push the abutting piece (22) to move towards a direction away from the lock groove (211) so as to enable the abutting piece (22) to withdraw from the lock groove (211).

8. A latch construction according to claim 1, characterized in that the second latch assembly (2) is provided with a second locking portion (25) and the third latch assembly (3) is provided with a third locking portion (31), the second locking portion (25) abutting against a side of the third locking portion (31) when the second latch assembly (2) and the third latch assembly (3) cooperate to lock the cabinet (202) and the door (201).

9. The latch structure according to claim 8, wherein the second latch assembly (2) comprises a sheet metal part (26) and a rotating shaft (27), the rotating shaft (27) is fixedly arranged on the box body (202), one end of the sheet metal part (26) is provided with a rotating hole (261), and the rotating shaft (27) penetrates through the rotating hole (261) and is in rotating fit with the rotating hole (261) so that the second latch assembly (2) can be rotatably connected to the box body (202); one end, far away from the rotating hole (261), of the sheet metal part (26) is bent towards one side to form the second locking part (25).

10. A latch construction according to claim 9, characterized in that the second latch assembly (2) further comprises a fixed member (28), one end of the fixed member (28) is fixedly connected to the rotary shaft (27), and the other end is detachably connected to the box body (202) by a fastening member.

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