Locking device and refrigerator

Abstract

The utility model relates to the technical field of household appliances, and discloses a locking device and a refrigerator. The locking device comprises a fixing part which is used for being arranged on a first to-be-locked part and comprises a stopping side wall and a guiding side wall which are connected with each other; the connecting piece is used for being arranged on a second to-be-locked piece; the movable lock hook comprises a pressing end and a locking end which are oppositely arranged, the middle of the movable lock hook is rotationally connected with the connecting piece, and the movable lock hook can lock or unlock the fixing piece, so that the first to-be-locked piece and the second to-be-locked piece are locked or separated; a break angle is arranged between the stop side wall and the guide side wall, and in the process that the movable lock hook locks the fixing piece, the locking end can abut against the guide side wall and slide relative to the guide side wall. And under the condition that the movable lock hook locks the fixing piece, the locking end is connected with the backstop side wall. According to the embodiment, the to-be-locked piece can be locked, the complexity of unlocking or locking the to-be-locked piece is reduced, and the use experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, for example, to a locking device and a refrigerator. Background Art

[0002] Frost and condensation inside refrigerators and freezers are a pain point in the industry. As users' requirements for the depth of refrigeration in refrigerators and freezers increase, this problem becomes more prominent. The frost and condensation problem is ultimately due to poor sealing of refrigerators and freezers, which causes hot and humid air from the outside to enter the cabinet and condense inside the refrigerator.

[0003] At present, refrigerators and freezers are usually sealed with door seals with magnetic strips. This door seal uses the magnetic strip to attract the steel plate of the cabinet and press the door seal on the steel plate to achieve a sealing effect. However, this door seal relies on the magnetic force of the magnetic strip as the locking force to press the door seal strip.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] In the related art, when the door seal magnetic force is strong, it can provide better door sealing tightening force, but it will also increase the force required by the user to open the door, reducing the user's experience; when the door seal magnetic force is weak, it cannot provide sufficient door sealing tightening force, and the external hot and humid air can easily enter the interior of the box and cause condensation and frost.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The disclosed embodiments provide a locking device and a refrigerator, which can lock a part to be locked and reduce the complexity of unlocking or locking the part to be locked, thereby improving the user experience.

[0009] According to the first embodiment provided by the present application, a locking device is provided, the locking device comprising: a fixing member, used to be arranged on a first member to be locked, comprising a stop side wall and a guide side wall connected to each other; a connecting member, used to be arranged on a second member to be locked; a movable locking hook, comprising a pressing end and a locking end arranged oppositely, the middle part of the movable locking hook is rotatably connected to the connecting member, and the movable locking hook can lock or unlock the fixing member, so that the first member to be locked and the second member to be locked are locked or separated;

[0010] Among them, a folded angle is provided between the stop side wall and the guide side wall. When the movable locking hook locks the fixing piece, the locking end can abut against the guide side wall and slide relative to the guide side wall; when the movable locking hook locks the fixing piece, the locking end is connected to the stop side wall; when the movable locking hook unlocks the fixing piece, pressing the pressing end can separate the locking end from the stop side wall.

[0011] In some optional embodiments, the locking device further includes: an elastic device, disposed between the connecting member and the movable locking hook, for providing a force in a direction away from the connecting member to the pressing end, and providing a force in a direction toward the connecting member to the locking end.

[0012] In some optional embodiments, the locking device also includes: a support member, a first end of which is connected to the connecting member, and a second end capable of being connected to a side wall of the support member facing the locking end, or a second end capable of being connected to a side wall of the support member facing away from the pressing end, so as to limit the rotation range of the movable locking hook after being subjected to the force provided by the elastic device.

[0013] In some optional embodiments, a first connecting seat is provided in the middle of the movable locking hook, the first connecting seat is provided with a first through hole, the connecting piece is provided with a second connecting seat, and the second connecting seat is provided with a second through hole; the locking device also includes a connecting pin, which passes through the first through hole and the second through hole at the same time to enable the movable locking hook to be rotatably connected with the connecting piece.

[0014] In some optional embodiments, there are multiple first connecting seats, and the number of second connecting seats is the same as the number of first connecting seats and is arranged one-to-one; the elastic device includes a torsion spring, which is sleeved on the outside of the connecting pin, and the torsion spring is located between two adjacent first connecting seats, and the two torsion arms of the torsion spring are respectively connected to the connecting piece and the pressing end.

[0015] In some optional embodiments, the locking end includes a hook portion, the opening of the hook portion faces the stop side wall, the outer wall of the hook portion is used to abut and slide relatively with the guide side wall, and the inner wall of the hook portion is used to connect with the stop side wall.

[0016] In some optional embodiments, the fixing member includes a main body and a flange connected to each other, the main body is configured with a slot with an opening at one end, the flange is arranged around the opening of the slot, the inner side wall of the slot includes the stop side wall, the side wall of the flange includes the guide side wall, and the guide side wall is arranged at an incline.

[0017] In some optional embodiments, the card slot also includes an avoidance side wall, which is arranged opposite to the stop side wall and is inclined so that the diameter of the card slot gradually increases along the bottom wall of the card slot toward the opening of the card slot.

[0018] According to a second embodiment provided by the present application, a refrigerator is provided, comprising: a locking device as described in any of the above items; a first piece to be locked, a fixing piece is arranged on the first piece to be locked; a second piece to be locked, a connecting piece is arranged on the second piece to be locked, and a movable locking hook locks or unlocks the fixing piece to lock or separate the first piece to be locked and the second piece to be locked.

[0019] In some optional embodiments, the first part to be locked includes one of the box body and the door body, the second part to be locked includes the other of the box body and the door body, and the refrigerator also includes a door seal without magnetic stripes, which is arranged on the side of the door body facing the box body.

[0020] The locking device and refrigerator provided by the embodiments of the present disclosure can achieve the following technical effects:

[0021] With this optional embodiment, in the process of the movable locking hook locking the fixed member, the locking end of the movable locking hook can abut against the guide side wall of the fixed member and slide relative to the guide side wall. In the process of the relative movement of the second member to be locked and the first member to be locked, the guide side wall can guide the movement trajectory of the locking end, the guide side wall is connected to the stop side wall, and a fold is provided between the stop side wall and the guide side wall, so that the locking end moves to the stop side wall and connects with the stop side wall. In this way, when the first member to be locked and the second member to be locked are locked, the first member to be locked and the second member to be locked can be directly made to move relative to each other, and the locking end can move to the stop side wall under the guidance of the guide side wall, and the user does not need to perform additional operations on the locking device, which reduces the complexity of locking the first member to be locked and the second member to be locked, facilitates user operation, and improves the user experience. In the process of the movable locking hook unlocking the fixed member, pressing the pressing end of the movable locking hook can separate the locking end and the stop side wall, which facilitates user operation and improves the user experience.

[0022] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0024] Figure 1 is a schematic structural diagram of a refrigerator provided by an embodiment of the present disclosure;

[0025] Figure 2 is a partial structural schematic diagram of a refrigerator provided by an embodiment of the present disclosure;

[0026] Figure 3 is a partial structural schematic diagram of another refrigerator provided by an embodiment of the present disclosure;

[0027] Figure 4 is a structural schematic diagram of a locking device provided by an embodiment of the present disclosure;

[0028] Figure 5 It is a schematic diagram of the structure of a fixing member provided in an embodiment of the present disclosure.

[0029] Reference numerals:

[0030] 100, fixing member; 110, main body; 111, stop side wall; 112, avoidance side wall; 113, slot; 120, convex edge; 121, guide side wall; 200, connecting member; 210, second connecting seat; 300, movable locking hook; 310, pressing end; 320, locking end; 330, first connecting seat; 400, elastic device; 500, supporting member; 600, connecting pin; 700, box body; 800, door body. DETAILED DESCRIPTION

[0031] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0032] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so as to describe the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0033] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0034] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0035] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0036] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0037] The present disclosure provides a locking device, such as Figures 1 to 5 As shown, the locking device comprises a fixing member 100, a connecting member 200 and a movable locking hook 300. The fixing member 100 is used to be arranged on the first member to be locked, and the fixing member 100 comprises a stop side wall 111 and a guide side wall 121 connected to each other. The connecting member 200 is used to be arranged on the second member to be locked.

[0038] The movable locking hook 300 includes a pressing end 310 and a locking end 320 that are relatively arranged. The middle part of the movable locking hook 300 is rotatably connected to the connecting member 200. The movable locking hook 300 can lock or unlock the fixing member 100, thereby locking or separating the first member to be locked and the second member to be locked.

[0039] Among them, a folded angle is provided between the stop side wall 111 and the guide side wall 121. When the movable locking hook 300 locks the fixing member 100, the locking end 320 can abut against the guide side wall 121 and slide relative to the guide side wall 121; when the movable locking hook 300 locks the fixing member 100, the locking end 320 is connected to the stop side wall 111; when the movable locking hook 300 unlocks the fixing member 100, the pressing end 310 can separate the locking end 320 from the stop side wall 111.

[0040] In this optional embodiment, the fixing member 100 is arranged on the first member to be locked, the connecting member 200 is arranged on the second member to be locked, and the middle part of the movable locking hook 300 is rotatably connected with the connecting member 200, that is, the movable locking hook 300 is also arranged on the second member to be locked. The movable locking hook 300 can lock or unlock the fixing member 100. When the movable locking hook 300 locks the fixing member 100, the first member to be locked can be locked with the second member to be locked. When the movable locking hook 300 unlocks the fixing member 100, the first member to be locked can be relatively separated.

[0041] For example, Figures 1 to 3 As shown, the locking device is used for a refrigerator, the first locking member includes a box 700, and the box 700 is configured with a storage cavity; the second locking member includes a door 800, and the door 800 is rotatably connected to the box 700 through a hinge, and the door 800 is used to open or close the storage cavity. The connecting member 200 is arranged on the side of the door 800 away from or close to the box 700, and the fixing member 100 is arranged on the box 700 and is arranged opposite to the connecting member 200. When the movable lock hook 300 locks the fixing member 100, the door 800 cover is arranged on the box 700 to lock the box 700 and close the storage cavity; when the movable lock hook 300 unlocks the fixing member 100, the door 800 can be separated from the box 700 to open the storage cavity. By setting the locking device, sufficient locking force can be provided to the door 800 when closing the storage cavity, reducing the occurrence of condensation and frost caused by external hot and humid air entering the storage cavity.

[0042] In this embodiment, when the movable locking hook 300 locks the fixing member 100, the locking end 320 of the movable locking hook 300 can abut against the guide side wall 121 of the fixing member 100 and slide relative to the guide side wall 121. When the second member to be locked moves relative to the first member to be locked, the guide side wall 121 can guide the movement trajectory of the locking end 320, and the guide side wall 121 is connected to the stop side wall 111, and a fold is provided between the stop side wall 111 and the guide side wall 121, so that the locking end 320 moves to the stop side wall 111 and connects with the stop side wall 111. In this way, when the first and second locking members are locked, the first and second locking members can be directly moved relative to each other, and the locking end 320 can move to the stop side wall 111 under the guidance of the guide side wall 121, without the need for the user to perform additional operations on the locking device, thereby reducing the complexity of locking the first and second locking members, facilitating user operation, and improving user experience. In the process of unlocking the fixing member 100 by the movable locking hook 300, pressing the pressing end 310 of the movable locking hook 300 can separate the locking end 320 from the stop side wall 111, facilitating user operation, and improving user experience.

[0043] In some optional embodiments, such as Figure 2 and Figure 4 As shown, the locking device also includes an elastic device 400, which is arranged between the connecting member 200 and the movable locking hook 300, and is used to provide a force away from the connecting member 200 to the pressing end 310, and provide a force toward the connecting member 200 to the locking end 320.

[0044] In this embodiment, the elastic device 400 is disposed between the connecting member 200 and the movable locking hook 300. The middle portion of the movable locking hook 300 is rotatably connected to the connecting member 200. When the elastic device 400 provides a force in a direction away from the connecting member 200 to the pressing end 310, the movable locking hook 300 rotates along the position where the middle portion of the movable locking hook 300 is connected to the connecting member 200, and the locking end 320 is subjected to a force in a direction toward the connecting member 200, so as to improve the stability of the connection between the locking end 320 and the stop side wall 111, and improve the locking effect of the locking device. When the elastic device 400 directly provides a force in a direction toward the connecting member 200 to the locking end 320, the stability of the connection between the locking end 320 and the stop side wall 111 can also be improved, and the locking effect of the locking device can be improved.

[0045] Optionally, when the locking device is arranged on the upper side walls of the first and second parts to be locked, the locking device may not be provided with the elastic device 400. Under the influence of gravity, the locking end 320 can be downwardly resting on the fixing part 100 so that the locking end 320 is connected to the stop side wall 111.

[0046] Optionally, the locking device includes a compression spring supported between the connecting member 200 and the pressing end 310 , and the compression spring provides a force to the pressing end 310 in a direction away from the connecting member 200 .

[0047] Optionally, the locking device includes a tension spring, two ends of which are respectively connected to the connecting member 200 and the locking end 320 , and the tension spring provides a force to the locking end 320 in a direction toward the connecting member 200 .

[0048] For example, Figure 3 and Figure 4 As shown, a first connection seat 330 is provided in the middle of the movable locking hook 300, and the first connection seat 330 is provided with a first through hole. The connecting member 200 is provided with a second connection seat 210, and the second connection seat 210 is provided with a second through hole.

[0049] The locking device further includes a connecting pin 600 , which passes through the first through hole and the second through hole at the same time, so that the movable locking hook 300 is rotatably connected to the connecting member 200 .

[0050] Optionally, the number of the first connection sockets 330 is one or more, and / or the number of the second connection sockets 210 is one or more. For example, when the number of the first connection socket 330 is one and the number of the second connection sockets 210 is two, the first connection socket 330 is located between the two second connection sockets 210, and the connection pin 600 passes through one second connection socket 210, the first connection socket 330, and the other second connection socket 210 in sequence.

[0051] When the number of the second connection socket 210 is one and the number of the first connection sockets 330 is two, the second connection socket 210 is located between the two first connection sockets 330 .

[0052] When there are multiple first connection sockets 330 and multiple second connection sockets 210 , the number of first connection sockets 330 may be the same as the number of second connection sockets 210 , and one first connection socket 330 is correspondingly disposed to one second connection socket 210 .

[0053] Furthermore, if Figure 4 As shown, the elastic device 400 includes a torsion spring, which is sleeved on the outside of the connecting pin 600 and located between two adjacent first connecting seats 330. The two torsion arms of the torsion spring are respectively connected to the connecting member 200 and the pressing end 310.

[0054] In this embodiment, the torsion spring is sleeved on the outside of the connecting pin 600, and the two torsion arms of the torsion spring are respectively connected to the connecting member 200 and the pressing end 310, so that the torsion spring can provide a force to the pressing end 310 in a direction away from the connecting member 200, and the movable locking hook 300 rotates along the middle of the movable locking hook 300 at the position where it is connected to the connecting member 200, and the locking end 320 is subjected to a force toward the connecting member 200, so as to improve the stability of the connection between the locking end 320 and the stop side wall 111, thereby improving the locking effect of the locking device.

[0055] Furthermore, if Figures 2 to 4 As shown, the locking device also includes a support member 500, a first end of the support member 500 is connected to the connecting member 200, and a second end of the support member 500 can be connected to the locking end 320 toward the side wall of the support member 500 to limit the rotation range of the movable locking hook 300 after being subjected to the force provided by the elastic device 400.

[0056] By adopting this optional embodiment, the second end of the support member 500 can be connected to the locking end 320 toward the side wall of the support member 500. In the process of the locking end 320 rotating toward the connecting member 200 under the force provided by the elastic device 400, the locking end 320 toward the side wall of the support member 500 can abut against the support member 500. The support member 500 restricts the locking end 320 from continuing to rotate to reduce the large rotation range of the locking end 320. When the first member to be locked and the second member to be locked are closed, the locking end 320 and the side wall of the first member to be locked toward the second locking member prevent the first member to be locked and the second member to be locked from closing, thereby improving the user experience.

[0057] Optionally, the locking device also includes a support member 500, a first end of the support member 500 is connected to the connecting member 200, and a second end of the support member 500 can be connected to the side wall of the pressing end 310 away from the support member 500 to limit the rotation range of the movable locking hook 300 after being subjected to the force provided by the elastic device 400.

[0058] By adopting this optional embodiment, the second end of the support member 500 can be connected to the side wall of the pressing end 310 away from the connecting member 200. In the process of the pressing end 310 rotating toward the connecting member 200 under the force provided by the elastic device 400, the side wall of the pressing end 310 away from the connecting member 200 can abut against the support member 500. The support member 500 restricts the pressing end 310 from continuing to rotate to reduce the large rotation range of the movable lock. When the first member to be locked and the second member to be locked are closed, the locking end 320 and the first member to be locked face the side wall of the second locking member to prevent the first member to be locked and the second member to be locked from closing, thereby improving the user experience.

[0059] Optionally, the support member 500 is bent so that the second end of the support member 500 is located on a side of the pressing end 310 facing away from the connecting member 200 .

[0060] In some optional embodiments, the locking end 320 includes a hook portion, the opening of the hook portion faces the stop side wall 111, the outer wall of the hook portion is used to abut and slide relatively with the guide side wall 121, and the inner wall of the hook portion is used to connect with the stop side wall 111.

[0061] With this optional embodiment, taking the closing of the refrigerator door as an example, when the refrigerator door body 800 moves toward the box body 700, the outer wall of the hook portion is first connected to the guide side wall 121. Under the support of the guide side wall 121, the hook portion is subjected to a force in the direction away from the connecting member 200, the hook portion rotates in the opposite direction, the movable locking hook 300 compresses the torsion spring, and the hook portion slides along the guide side wall 121. Continue to close the door, when the hook portion moves to the end of the guide side wall 121, there is a fold between the stop side wall 111 and the guide side wall 121, the guide side wall 121 can no longer support the hook portion, and the hook portion rotates under the action of the torsion spring elastic force to connect with the stop side wall 111, so that the first to-be-locked member and the second to-be-locked member are locked.

[0062] In some optional embodiments, such as Figure 4 and Figure 5 As shown, the fixing member 100 includes a main body 110 and a flange 120 connected to each other. The main body 110 is configured with a slot 113 with an opening at one end. The flange 120 is arranged around the opening of the slot 113. The inner side wall of the slot 113 includes a stop side wall 111. The side wall of the flange 120 includes a guide side wall 121. The guide side wall 121 is arranged at an angle.

[0063] In this embodiment, the fixing member 100 includes a main body 110 and a flange 120 connected to each other. The main body 110 is configured with a slot 113 with an opening at one end. The inner side wall of the slot 113 includes a stopper side wall 111. When the locking end 320 is connected to the stopper side wall 111, the locking end 320 is located in the slot 113. The flange 120 is arranged around the opening. The side wall of the flange 120 includes a guide side wall 121, so that the guide side wall 121 is connected to the stopper side wall 111 in the slot 113, and a fold angle is provided between the two. The guide side wall 121 is arranged to be inclined, so that the support force of the guide side wall 121 on the locking end 320 can be gradually increased, thereby improving the smoothness of closing the refrigerator door 800 and improving the user experience.

[0064] Furthermore, the card slot 113 also includes an avoidance side wall 112, which is arranged opposite to the stop side wall 111, and the avoidance side wall 112 is inclined so that the diameter of the card slot 113 gradually increases along the bottom wall of the card slot 113 toward the opening of the card slot 113.

[0065] In this embodiment, the avoidance side wall 112 is arranged to be inclined so that the diameter of the slot 113 gradually increases along the bottom wall of the slot toward the opening of the slot 113. In this way, the locking end 320 can be avoided when entering or moving out of the slot 113, thereby reducing the occurrence of collision between the locking end 320 and the fixing member 100.

[0066] The embodiment of the present disclosure provides a refrigerator, comprising any of the above locking devices, a first locking member and a second locking member. The fixing member 100 is arranged on the first locking member, the connecting member 200 is arranged on the second locking member, and the movable locking hook 300 locks or unlocks the fixing member 100, so that the first locking member and the second locking member are locked or separated.

[0067] The refrigerator provided in the embodiment of the present disclosure includes the locking device described in any one of the above embodiments, and thus has all the beneficial effects of the locking device described in any one of the above embodiments, which will not be described in detail here.

[0068] In some optional embodiments, such as Figures 1 to 3 As shown, the first part to be locked includes one of the box body 700 and the door body 800, the second part to be locked includes the other of the box body 700 and the door body 800, and the refrigerator also includes a non-magnetic strip door seal, which is arranged on the side of the door body 800 facing the box body 700.

[0069] In this embodiment, the refrigerator body 700 and the door body 800 can be locked and sealed by the locking device. At this time, the door seal of the refrigerator can be set to a door seal without a magnetic strip. This not only improves the sealing effect of the door body 800 when closing the door body 800, but also reduces the force applied by the user to overcome the magnetic attraction when opening the door body 800, thereby facilitating the user to open the refrigerator door body 800 and improving the user experience.

[0070] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A locking device, It is characterized in that include: A fixing member, used to be arranged on the first member to be locked, comprising a stop side wall and a guide side wall connected to each other; A connecting piece, used to be arranged on the second piece to be locked; The movable locking hook comprises a pressing end and a locking end which are arranged opposite to each other, the middle part of the movable locking hook is rotatably connected with the connecting member, and the movable locking hook can lock or unlock the fixing member, thereby locking or separating the first member to be locked and the second member to be locked; Among them, a folded angle is provided between the stop side wall and the guide side wall. When the movable locking hook locks the fixing piece, the locking end can abut against the guide side wall and slide relative to the guide side wall; when the movable locking hook locks the fixing piece, the locking end is connected to the stop side wall; when the movable locking hook unlocks the fixing piece, pressing the pressing end can separate the locking end from the stop side wall.

2. The locking device according to claim 1, It is characterized in that Also includes: The elastic device is arranged between the connecting piece and the movable locking hook, and is used for providing a force in a direction away from the connecting piece to the pressing end, and providing a force in a direction toward the connecting piece to the locking end.

3. The locking device according to claim 2, It is characterized in that Also includes: The support member has a first end connected to the connecting member, and a second end that can be connected to the side wall of the support member facing the locking end, or the second end that can be connected to the side wall of the support member facing away from the pressing end, so as to limit the rotation range of the movable locking hook after being subjected to the force provided by the elastic device.

4. The locking device according to claim 2, It is characterized in that A first connecting seat is provided in the middle of the movable locking hook, the first connecting seat is provided with a first through hole, the connecting piece is provided with a second connecting seat, and the second connecting seat is provided with a second through hole; The locking device also includes a connecting pin, which passes through the first through hole and the second through hole at the same time, so that the movable locking hook is rotatably connected to the connecting piece.

5. The locking device according to claim 4, It is characterized in that There are multiple first connection sockets, and the number of second connection sockets is the same as the number of first connection sockets and they are arranged in one-to-one correspondence; The elastic device comprises a torsion spring, which is sleeved on the outside of the connecting pin and located between two adjacent first connecting seats. The two torsion arms of the torsion spring are respectively connected to the connecting piece and the pressing end.

6. The locking device according to any one of claims 1 to 5, It is characterized in that The locking end comprises a hook portion, the opening of the hook portion faces the stop side wall, the outer side wall of the hook portion is used to abut against and slide relatively with the guide side wall, and the inner side wall of the hook portion is used to connect with the stop side wall.

7. The locking device according to any one of claims 1 to 5, It is characterized in that The fixing member includes a main body and a convex edge connected to each other. The main body is configured with a slot with an opening at one end. The convex edge is arranged around the opening of the slot. The inner side wall of the slot includes the stop side wall. The side wall of the convex edge includes the guide side wall. The guide side wall is arranged inclined.

8. The locking device according to claim 7, It is characterized in that The card slot also includes an avoidance side wall, which is arranged opposite to the stop side wall and is inclined so that the diameter of the card slot gradually increases along the bottom wall of the card slot toward the opening of the card slot.

9. A refrigerator, It is characterized in that include: The locking device according to any one of claims 1 to 8; A first piece to be locked, the fixing piece being arranged on the first piece to be locked; The second piece to be locked, the connecting piece is arranged on the second piece to be locked, and the movable locking hook locks or unlocks the fixing piece so that the first piece to be locked and the second piece to be locked are locked or separated.

10. The refrigerator according to claim 9, It is characterized in that The first part to be locked includes one of the box body and the door body, the second part to be locked includes the other of the box body and the door body, and the refrigerator also includes a door seal without a magnetic strip, which is arranged on the side of the door body facing the box body.

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