Lock body and refrigerator

Abstract

The utility model provides a lock body which comprises a lock shell, and a lock tongue, a driving element and a control circuit board are arranged in the lock shell. The lock tongue extends out through a through hole formed in the lock shell and is used for being connected with a lock hook installed on a cabinet door in a clamped mode, and the control circuit board is electrically connected with the driving element and used for controlling the driving element to drive the lock tongue to stretch out and draw back. A sealing ring is arranged between the spring bolt and the lock shell and used for forming a sealed containing space in the lock shell, and the driving element and the control circuit board are both located in the containing space. According to the embodiment of the utility model, the sealing ring isolates a closed accommodating space in the lock shell, so that water vapor is prevented from entering the space through a gap between the spring bolt and the through hole, the water vapor is prevented from damaging electronic elements such as the driving element and the control circuit board, the electronic elements can normally work for a long time, the reliability and the safety of the door lock are improved, and the service life of the door lock is prolonged. Conditions are provided for installing the door lock in the internal space of the refrigerator, and the risk that the door lock is easily damaged due to external installation is eliminated.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigeration and freezing equipment, and in particular relates to a lock body and a refrigerator. Background Art

[0002] In the modern retail industry, the development of unmanned vending technology has promoted the widespread application of self-service vending solutions. Among them, refrigerators, as a common unmanned vending equipment, have significant advantages in convenience and efficiency. In order to ensure the safety of refrigerators in unmanned vending environments and the anti-theft of goods, they are usually equipped with door locks with electronic control functions. These door locks integrate a variety of electronic components to achieve precise control of the door lock's open and closed state.

[0003] However, in actual applications, due to the characteristics of the operating environment of the refrigerator, a large amount of water vapor is generated during the cooling process. The water vapor can penetrate into the door lock through the gap of the lock tongue, causing the electronic components to become damp, thereby affecting the normal operation of the components and even causing damage to the components. This not only affects the reliability and safety of the door lock, but may also cause the refrigerator to be unable to be used normally, affecting the user experience and the safe storage of goods. In order to prevent the impact of water vapor on the electronic components in the door lock, some refrigerators install the door lock on the outside. Although it avoids contact with the water vapor inside the refrigerator, the external installation exposes the door lock to the outside and makes it easy to become a target of damage, thus affecting the safety of the goods in the refrigerator. Utility Model Content

[0004] In view of the deficiencies existing in the related art, the utility model provides a lock body and a refrigerator to solve the problem that the door lock of the current intelligent refrigerator is easily damaged by water vapor and is difficult to be installed inside the refrigerator.

[0005] The utility model provides a lock body, comprising a lock shell, wherein a lock tongue, a driving element and a control circuit board are arranged inside the lock shell;

[0006] The lock tongue extends through a through hole provided in the lock housing to engage with a lock hook installed on the cabinet door, and the control circuit board is electrically connected to the driving element to control the driving element to drive the lock tongue to extend and retract;

[0007] A sealing ring is arranged between the lock tongue and the lock housing to form a sealed accommodation space inside the lock housing. The accommodation space is located inside the sealing ring, and the driving element and the control circuit board are both located in the accommodation space.

[0008] In some of the embodiments, the sealing ring is sleeved on the lock tongue, one end of the sealing ring is connected to the lock tongue, and the other end is connected to the inner wall of the lock housing, and a port at the inner end of the through hole is arranged around it.

[0009] In some of the embodiments, the sealing ring has a movable portion, the movable portion is sleeved on the lock tongue, and the movable portion has a corrugated structure.

[0010] In some of the embodiments, a mounting portion is provided at one end of the sealing ring, a boss is provided on the inner wall of the lock housing, the mounting portion is sleeved on the boss, and the boss is penetrated through the through hole.

[0011] In some of the embodiments, the bottom surface of the mounting portion is attached to the top surface of the boss, and a limiting ring arranged around the outer periphery of the mounting portion is clamped in a limiting groove arranged around the side wall of the boss.

[0012] In some of the embodiments, the mounting portion has a receiving hole, the port of the movable portion is connected to the receiving hole, and when the locking tongue is extended, the compressed movable portion enters the receiving hole.

[0013] In some embodiments, the outer diameter of the movable portion gradually decreases in a direction away from the through hole so as to be flattened when compressed.

[0014] In some of the embodiments, one end of the sealing ring has a fixing portion, which is in a circular ring shape and is inserted into a fixing groove arranged around the outer wall of the locking tongue.

[0015] In some embodiments, the lock shell has a lock opening, so that the lock hook of the cabinet door can extend into the lock shell through the lock opening and engage with the lock tongue. A partition block is installed in the lock shell, the partition block is located on one side of the lock opening, and the through hole is located on the partition block.

[0016] The utility model also provides a refrigerator, including a cabinet body and the above-mentioned lock body, wherein a cabinet door is installed on the cabinet body, the lock body is installed on the cabinet body and is located in the storage space of the cabinet body, and a lock hook installed on the cabinet door is clamped on the lock tongue of the lock body to enable the cabinet door to close the storage space.

[0017] Based on the above technical scheme, the sealing ring in the embodiment of the utility model isolates a closed accommodating space inside the lock shell, preventing water vapor from entering the space through the gap between the lock tongue and the through hole, avoiding water vapor from causing damage to electronic components such as drive components and control circuit boards, ensuring that they can work normally for a long time, improving the reliability and safety of the door lock, providing conditions for the door lock to be installed in the internal space of the refrigerator, eliminating the risk of easy damage caused by the external installation of the door lock, further improving the safety of the door lock, and solving the problem that the door lock of the current smart refrigerator is easily damaged by water vapor and is difficult to be installed inside the refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of the lock body of the utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the lock body of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the refrigerator of the present utility model.

[0022] In the figure:

[0023] 1. Lock housing; 11. Through hole; 12. Boss; 13. Limiting groove; 14. Locking mouth; 15. Separating block; 16. Side plate;

[0024] 2. Lock tongue; 21. Fixing groove; 3. Driving element; 31. Valve body; 32. Solenoid shaft; 4. Control circuit board;

[0025] 5. Sealing ring; 51. Movable part; 52. Mounting part; 53. Accommodating hole; 54. Fixed part; 55. Limiting ring;

[0026] 6. Accommodation space; 7. Cabinet; 8. Lock body;

[0027] 9. Cabinet door; 91. Lock hook; 92. Plug slot. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] like Figure 1 to Figure 2 As shown, in an illustrative embodiment of the lock body of the utility model, the lock body comprises a lock housing 1 , and a lock tongue 2 , a driving element 3 and a control circuit board 4 are installed inside the lock housing 1 .

[0033] The lock tongue 2 extends through the through hole 11 provided in the lock housing 1, so that it can extend and be inserted into the limiting hole provided in the cabinet door 9 or be snapped into the plug-in slot 92 of the lock hook 91 installed on the cabinet door 9, so as to limit the cabinet door 9 and lock the cabinet door 9 in a closed state; or it can be retracted and pulled out of the limiting hole or the plug-in slot, so as to eliminate the limit on the cabinet door 9, so that the cabinet door 9 is unlocked, so that the cabinet door 9 can be opened. The control circuit board 4 is electrically connected to the driving element 3, so as to control the driving element 3, so that the driving element 3 drives the lock tongue 2 to extend or retract, so as to lock or unlock the cabinet door 9.

[0034] A sealing ring 5 is installed between the lock tongue 2 and the lock housing 1, so as to separate a sealed accommodation space 6 in the internal space of the lock housing 1. The accommodation space 6 is located outside the sealing ring 5, and the driving element 3 and the control circuit board 4 are both located in the accommodation space 6. More specifically, when the sealing ring 5 is arranged in the through hole 11, the gap between the through hole 11 and the lock tongue 2 is located at a section of the sealing ring 5 close to the driving element 3 and the entire space inside the lock housing 1 is the sealed accommodation space 6; when the sealing ring 5 is arranged in the internal space of the lock housing 1, the part of the internal space of the lock housing 1 located at the side of the sealing ring 5 close to the driving element 3 is the sealed accommodation space 6. The sealing ring 5 can block the water vapor entering through the through hole 11 and the gap between the lock tongue 2, and prevent the water vapor from entering the accommodation space 6 where the driving element 3, the control circuit board 4 and other electronic components are located, so that the electronic components are in a sealed and dry space. In addition, the space inside the sealing ring 5 can act as an airbag structure that can expand and compress as the lock tongue 2 moves. When the lock tongue 2 is extended to lock, the sealing ring 5 can be compressed accordingly, reducing the space inside the sealing ring 5 through which water vapor can enter, thereby pressing out the entered water vapor and discharging the water vapor retained in the through hole 11, thereby preventing water vapor from condensing in the through hole 11 and causing the lock tongue 2 to be frozen, thereby ensuring smooth extension and retraction of the lock tongue 2 to the greatest extent.

[0035] The driving element 3 has a valve body 31, and the valve body 31 has an electromagnet. The lock tongue 2 is slidably installed in the through hole 11 set in the lock shell 1, and the electromagnetic shaft 32 fixedly installed at its inner end is slidably installed in the valve body 31, so that the electromagnet drives the electromagnetic shaft 32 to move through the electromagnetic force, thereby driving the lock tongue 2 to extend and retract, so that it is stuck in the lock slot of the lock hook 91 or pulled out of the lock slot.

[0036] One side of the lock housing 1 is open so that the lock body components such as the lock tongue 2, the driving element 3, the control circuit board 4, etc. can be installed therein. The lock housing 1 is closed on its open side by a side plate 16 installed by bolts. In order to ensure sealing, a sealing strip is provided on the side plate 16 to seal the gap between it and the lock housing 1 when it is installed on the lock housing 1.

[0037] In the above-mentioned schematic embodiment, the lock body isolates a sealed accommodating space 6 inside the lock shell 1 through the sealing ring 5, preventing water vapor from entering the space through the gap between the lock tongue 2 and the through hole 11, avoiding water vapor from causing damage to electronic components such as the drive element 3 and the control circuit board 4, ensuring that they can work normally for a long time, and improving the reliability and safety of the door lock; in addition, it provides conditions for the door lock to be installed in the internal space of the refrigerator, eliminating the risk of easy damage caused by the external installation of the door lock, further improving the safety of the door lock, and solving the problem that the door lock of the current smart refrigerator is easily damaged by water vapor and is difficult to be installed inside the refrigerator.

[0038] In some embodiments, the sealing ring 5 is sleeved on the locking tongue 2 , one end of which is connected to the locking tongue 2 , and the other end is connected to the inner wall of the lock housing 1 , and surrounds a port at the inner end of the through hole 11 .

[0039] The sealing ring 5 sleeved on the lock tongue 2 covers the port at the inner end of the through hole 11, and the other end is fixedly connected to the lock tongue 2, so that after water vapor enters the lock housing 1 through the gap between the lock tongue 2 and the through hole 11, it is blocked by the sealing ring 5 inside, so that the part of the internal space of the lock housing 1 located on the side of the sealing ring 5 close to the driving element 3 constitutes a sealed accommodating space 6, which prevents water vapor from contacting the electronic components, improves the life of the electronic components, and provides conditions for the door lock to be set in the internal space of the refrigerator. In addition, the sleeved sealing ring 5 can be extended and retracted with the lock tongue 2, avoiding wear caused by relative movement when the lock tongue 2 moves and the sealing ring 5 is stationary, thereby improving its service life.

[0040] In some embodiments, the sealing ring 5 has a movable portion 51, which is sleeved on the lock tongue 2 and has a corrugated structure. The portion of the sealing ring 5 that is sleeved on the lock tongue 2 and expands and contracts accordingly adopts a corrugated structure similar to a bellows, so that the sealing ring 5 can expand and contract freely, improve the flexibility of the activity, avoid squeezing or pulling of the sealing ring 5 during the expansion and contraction process, reduce the wear or breakage caused by this, and increase its service life, thereby blocking water vapor from entering for a long time.

[0041] In some embodiments, one end of the sealing ring 5 has a mounting portion 52, the inner wall of the lock housing 1 is provided with a boss 12, the through hole 11 is provided with the boss 12, and the mounting portion 52 is sleeved on the boss 12. The sleeve connection between the mounting portion 52 and the boss 12 not only increases the tightness of the connection between the sealing ring 5 and the lock housing 1, but also ensures that the sealing ring 5 completely covers the through hole 11, thereby ensuring the sealing effect of the connection between the sealing ring 5 and the lock housing 1, so that the sealing ring 5 can prevent water vapor from entering.

[0042] In some embodiments, the bottom surface of the mounting portion 52 is attached to the top surface of the boss 12, and the limiting ring 55 arranged around the outer periphery of the mounting portion 52 is engaged in the limiting groove 13 arranged around the side wall of the boss 12. Through the engagement between the limiting groove 13 and the limiting ring 55, the mounting portion 52 is limited and fixed on the boss 12, thereby ensuring the stability of the connection between the lock housing 1 and the sealing ring 5. The main body of the mounting portion 52 is in the shape of a flat plate, attached to the top surface of the boss 12, and in surface contact with it, thereby increasing the contact area, improving the sealing effect of the connection between the sealing ring 5 and the lock housing 1, and enabling the sealing ring 5 to block the entry of water vapor for a long time. In addition, good sealing performance also ensures that when the sealing ring 5 is compressed as the lock tongue 2 moves, the gas inside it can be emptied to the greatest extent, that is, the water vapor can be discharged more fully, thereby reducing the probability of the lock tongue 2 being frozen due to condensation of water vapor.

[0043] In some embodiments, the mounting portion 52 has a receiving hole 53, and the port of the movable portion 51 is connected to the receiving hole 53. When the lock tongue 2 is extended, the compressed movable portion 51 enters the receiving hole 53. When the sealing ring 5 is compressed, the corrugated structure is compressed and enters the receiving hole 53, making the sealing ring 5 structure flatter, improving the deformation capacity of the sealing ring 5, thereby avoiding the sealing ring 5 from hindering the extension of the lock tongue 2, allowing it to extend a longer length, ensuring that it is inserted deeper into the through hole 11 or the plug-in slot of the lock hook 91, improving its limit locking function, and also improving the ability of the sealing ring 5 to compress and discharge gas, more fully discharging water vapor from the through hole 11 and the inside of the lock housing 1, and reducing the probability of the lock tongue 2 being frozen due to water vapor condensation.

[0044] In some embodiments, the outer diameter of the movable portion 51 gradually decreases in the direction away from the through hole 11, so that during the compression process of the corrugated structure, the upper section can enter the inner side of the adjacent next section, and thus is finally compressed to a flat state. In the flat state, the sections of the corrugated structure are arranged one by one from the outside to the inside, so that the corrugated structure can be compressed to the maximum extent, increasing the deformation capacity of the corrugated structure and enabling it to fully enter the accommodating hole 53, reducing the length of the sealing ring 5 after compression, and further increasing the deformation capacity of the sealing ring 5, which not only avoids its obstruction to the extension of the lock tongue 2, increases the extension length of the lock tongue 2, and strengthens its limiting locking function, but also can discharge more air and increase the effect of water vapor discharge.

[0045] In addition, the corrugated structure with a gradually changing outer diameter presents a conical structure, which provides a larger space inside. When compressed as the lock tongue 2 moves, a larger volume change can be rapidly generated, thereby generating a larger pressure inside, thereby more strongly and quickly discharging the air inside the sealing ring 5, further enhancing the effect of water vapor discharge and reducing the probability of the lock tongue 2 being frozen due to water vapor condensation.

[0046] In some embodiments, the sealing ring 5 has a fixing portion 54 at one end, and the fixing portion 54 is annular and is inserted into the fixing groove 21 provided on the outer wall of the lock tongue 2. Through the clamping connection between the fixing groove 21 and the fixing portion 54, the fixing portion 54 is fixed on the lock tongue 2 by limiting the position, thereby ensuring the stability of the connection between the lock tongue 2 and the sealing ring 5, improving the connection strength between the sealing ring 5 and the lock tongue 2, and improving the sealing effect at the connection between the sealing ring 5 and the lock tongue 2, so that the sealing ring 5 can block the entry of water vapor for a long time. The good air tightness generated by the clamping connection between the fixing portion 54 and the fixing groove 21 can also ensure that the sealing ring 5 can evacuate the gas inside it to the maximum extent, that is, more fully discharge the water vapor, and reduce the probability of the lock tongue 2 being frozen due to the condensation of water vapor.

[0047] In some embodiments, the lock housing 1 has a lock opening 14, so that the lock hook 91 of the cabinet door extends into the lock housing 1 through the lock opening 14 and engages with the lock tongue 2 to achieve the locking of the cabinet door. A partition block 15 is installed in the lock housing 1, and the partition block 15 is located on one side of the lock opening 14, and the through hole 11 is located on the partition block 15.

[0048] The partition block 15 closes the space inside the lock housing 4 away from the lock port 14. Since the driving element 3 and the control circuit board 4 are installed in this space, the closing of the partition block 15 prevents water vapor from entering and causing damage to the electrical components. In addition, the partition block 15 is provided with a through hole 11 as a guide for the extension and retraction of the lock tongue 2, and the through hole 11 is not facing the lock port 14 on one side, so that after the water vapor in the refrigerator enters the lock housing 1 through the lock port 14, it needs to turn to enter the gap between the through hole 11 and the lock tongue 2, which increases the difficulty of water vapor entering and reduces the probability that the water vapor enters the through hole 11 and freezes, causing the lock tongue 2 to be unable to extend and retract smoothly.

[0049] The lock hook 91 extends into the lock port 14 and engages with the lock tongue 2. The moving direction of the lock hook 91 is perpendicular to the moving direction of the lock tongue 2. The engaged portion is hidden in the lock housing 1, which increases the difficulty of abnormal unlocking and improves the safety of the door lock.

[0050] The lock opening 14 not only hides the lock tongue 2 and the through hole 11 inside the lock housing 1, but also increases the difficulty for water vapor to enter the through hole 11, thereby reducing the probability that the water vapor in the through hole 11 freezes and blocks the extension and retraction of the lock tongue 2. In addition, the lock opening 14 faces the outside of the refrigerator, so that it can face the cabinet door, and can be covered when the cabinet door is closed, so that the cabinet door can not only seal the storage space in the refrigerator, but also seal the lock tongue and the through hole, thereby reducing or even preventing the entry of water vapor, and further reducing the probability that the water vapor entering the through hole 11 freezes and blocks the extension and retraction of the lock tongue 2.

[0051] When the boss 12 and the limiting groove 13 are arranged to be assembled with the sealing ring 5, the boss 13 and the limiting groove 13 are both located on the partition block 15. After the partition block 14 is installed in the lock housing 1, it serves as a part of the lock housing 1. The outer wall of the mounting portion is in contact with the inner wall of the lock housing 1 all around, so that after the mounting portion is sleeved with the boss, it is combined into a rubber plug structure. With the installation of the partition block 14, the rubber plug structure seals a part of the space in the lock housing 1, thereby improving the sealing of the space where the electronic components are located.

[0052] Based on the above lock body, the utility model also provides a refrigerator, such as Figure 3 As shown, the refrigerator includes a cabinet body 7 and the above-mentioned lock body 8. A cabinet door 9 is installed on the cabinet body 7. The lock body 8 is installed on the cabinet body 7 and is located in the storage space of the cabinet body 7, so that the lock body 8 is on the side wall of the cabinet body facing the storage space and directly contacts the cold air in the storage hole. The lock hook 91 installed on the cabinet door 9 is clamped on the lock tongue 2 of the lock body 8 to make the cabinet door 9 close the storage space.

[0053] Goods are placed in the storage space inside the cabinet body 7. The cabinet door 9 can be opened to put the goods into or take them out of the storage space, and the cabinet door 9 can be closed to seal the goods in the storage space. When the cabinet door 9 is closed, the lock hook 91 installed on the cabinet door 9 is clamped on the lock tongue 2 extended from the lock body 8. The lock tongue 2 blocks the lock hook 91 and prevents the cabinet door 9 from moving in the opening direction, thereby locking the cabinet door 9, so that the cabinet door 9 remains closed and the storage space is sealed; the lock body 8 controls its lock tongue 2 to retract, thereby disengaging from the insertion slot of the lock hook 91, thereby eliminating the limit on the lock hook 91, so that the cabinet door 9 can move in the opening direction and the refrigerator can be opened.

[0054] The lock body 8 is arranged in the storage space for storing goods, so that after the cabinet door 9 closes the storage space and is locked by the lock body 8, the lock body 8 is also locked in the storage space, avoiding the lock body 8 from being exposed to the outside, making it difficult to be damaged, and improving the safety of the goods in the refrigerator.

[0055] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0056] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for which protection is requested in the utility model.

Claims

1. A lock body, characterized in that: It comprises a lock housing, wherein a lock tongue, a driving element and a control circuit board are installed inside the lock housing; The lock tongue extends through a through hole provided in the lock housing to be engaged with a lock hook installed on the cabinet door, and the control circuit board is electrically connected to the driving element to control the driving element to drive the lock tongue to extend and retract; A sealing ring is installed between the lock tongue and the lock housing to form a sealed accommodating space inside the lock housing. The accommodating space is located on a side of the sealing ring close to the driving element. The driving element and the control circuit board are both located in the accommodating space.

2. The lock body according to claim 1, characterized in that: The sealing ring is sleeved on the lock tongue, one end of the sealing ring is connected to the lock tongue, the other end is connected to the inner wall of the lock shell, and is surrounded by a port at the inner end of the through hole.

3. The lock body according to claim 2, characterized in that: The sealing ring has a movable portion, the movable portion is sleeved on the lock tongue, and the movable portion is a corrugated structure.

4. The lock body according to claim 3, characterized in that: One end of the sealing ring is provided with a mounting portion, the inner wall of the lock housing is provided with a boss, the mounting portion is sleeved on the boss, and the through hole penetrates the boss.

5. The lock body according to claim 4, characterized in that: The bottom surface of the mounting portion is attached to the top surface of the boss, and the limiting ring arranged around the outer periphery of the mounting portion is clamped in the limiting groove arranged around the side wall of the boss.

6. The lock body according to claim 4, characterized in that: The mounting portion has a receiving hole, the port of the movable portion is connected to the receiving hole, and when the locking tongue is extended, the compressed movable portion enters the receiving hole.

7. The lock body according to claim 3, characterized in that: The outer diameter of the movable portion gradually decreases in a direction away from the through hole so as to be flattened when compressed.

8. The lock body according to claim 2, characterized in that: One end of the sealing ring is provided with a fixing portion, which is in a circular ring shape and is inserted into a fixing groove arranged around the outer wall of the locking tongue.

9. The lock body according to claim 1, characterized in that: The lock housing has a lock opening, which is used for the lock hook of the cabinet door to extend into the lock housing through the lock opening and engage with the lock tongue. A partition block is installed in the lock housing, which is located on one side of the lock opening, and the through hole is located on the partition block.

10. A refrigerator, characterized in that: It comprises a cabinet body and the lock body as claimed in any one of claims 1 to 9, wherein a cabinet door is mounted on the cabinet body, the lock body is mounted on the cabinet body and is located in the storage space of the cabinet body, and a lock hook mounted on the cabinet door is clamped on the lock tongue of the lock body so that the cabinet door closes the storage space.

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