Door lock and box body

Abstract

The utility model relates to the technical field of door locks, and discloses a door lock and a box body. The fixing piece is provided with a fixing groove and a guide groove for connecting the fixing groove with the outer end of the fixing piece; the elastic ball head structure is arranged on the door body corresponding to the fixing piece, and the elastic ball head structure comprises a telescopic ball head; in the door closing process, the telescopic ball head is clamped into the fixing groove along the guide groove. In the door opening process, the telescopic ball head moves out of the fixing groove and slides out along the guide groove to be separated from the fixing piece. The fixing piece is fixed to the door frame, the guide groove and the fixing groove are formed in the fixing piece, the elastic ball head structure is arranged on the door body and matched with the guide groove and the fixing groove, when the door is closed, the elastic ball head structure can be smoothly clamped into the fixing groove through the guide groove so as to lock the door, and when the door is opened, the elastic ball head structure can slide out along the guide groove for unlocking; and the unlocking force is reduced, the structure is simple and the cost is low.

Description

Technical Field

[0001] The present application relates to the technical field of door locks, for example, to a door lock and a box. Background Art

[0002] At present, the internal structure of door locks with good automaticity is complex and the cost is high, and the automatic differential of door locks with simple structure is mostly cumbersome to open and close manually.

[0003] In the related art, a magnetic attraction structure door lock is adopted.

[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] Magnetic door locks are expensive and have demagnetization problems, are prone to failure, and have high maintenance costs.

[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 door lock and a housing to solve the problems of complex structure and high cost of automatic locks.

[0009] According to a first aspect of an embodiment of the present disclosure, a door lock is provided, comprising: a fixing member, which is arranged on a door frame corresponding to a door body; the fixing member is provided with a fixing groove and a guide groove connecting the fixing groove and an outer end of the fixing member; an elastic ball head structure, which is arranged on the door body corresponding to the fixing member, and the elastic ball head structure comprises a telescopic ball head; wherein, during the door closing process, the telescopic ball head is inserted into the fixed groove along the guide groove; during the door opening process, the telescopic ball head moves out of the fixed groove and slides out along the guide groove until it is separated from the fixing member.

[0010] Optionally, the fixing groove is a spherical crown-shaped groove, and the radius of the fixing groove is equal to the radius of the telescopic ball head, so that when the door is closed, the telescopic ball head fits into the fixing groove.

[0011] Optionally, the width of the guide groove gradually increases from the connection of the fixing groove to the outer end of the fixing member, and at the outer end of the fixing member, the width of the guide groove is greater than the diameter of the telescopic ball head.

[0012] Optionally, the bottom of the guide groove is inclined along the direction from the connection with the fixing groove to the outer end of the fixing piece toward away from the ball head, so that during the door opening process, the pressure of the bottom of the guide groove on the telescopic ball head gradually decreases to reduce the force of opening the door.

[0013] Optionally, the elastic ball head structure also includes: a shell, which defines an installation cavity, the shell corresponding to the fixing part is arranged in the door body, and the telescopic ball head is arranged in the installation cavity; the door body corresponds to the fixing part to open a telescopic hole connected to the installation cavity, and when the door is closed, the telescopic ball head passes through the telescopic hole and is embedded in the fixing groove.

[0014] Optionally, the elastic ball head structure also includes: a telescopic rod, which is arranged in the installation cavity, and the telescopic ball head is arranged at the protruding end of the telescopic rod; an elastic member, one end of which is connected to the bottom wall of the corresponding telescopic hole in the installation cavity, and the other end is connected to the telescopic rod; the elastic member applies a thrust toward the telescopic hole to the telescopic rod so that the telescopic ball head abuts against the fixing member.

[0015] Optionally, the elastic ball head structure further includes: a baffle plate, which protrudes outwardly from the outer wall of the telescopic rod; a plate surface on one side of the baffle plate abuts against the elastic member to push the telescopic rod to move toward the telescopic hole.

[0016] Optionally, the outer diameter of the baffle is larger than the diameter of the telescopic hole to prevent the telescopic rod from falling off the telescopic hole.

[0017] Optionally, the shell includes: a limit platform, corresponding to the position between the baffle plate and the bottom wall of the installation cavity, and protruding from the inner wall of the installation cavity; wherein, along the extension direction of the telescopic rod, the distance between the limit platform and the telescopic hole is smaller than the length of the telescopic rod protruding out of the telescopic hole in the open door state, and the distance between the limit platform and the telescopic hole is greater than the length of the telescopic rod protruding out of the telescopic hole in the closed door state.

[0018] In some embodiments, the door body includes an inner cavity, and the outer shell is installed in the inner cavity. The outer shell is fixedly connected to the inner cavity of the door body by gluing.

[0019] In some embodiments, the elastic ball head structure also includes a guide rod, which is arranged in the shell, and the telescopic rod is provided with a guide hole along the telescopic direction corresponding to the guide rod; one end of the guide rod is fixedly connected to the bottom wall of the shell, and the other end is inserted into the guide hole to limit the telescopic rod from telescopically extending and retracting along the direction of the guide rod.

[0020] In some embodiments, there is a clearance fit between the guide hole and the guide rod, and the single-side clearance value ranges from 1 mm to 3 mm.

[0021] According to a second aspect of an embodiment of the present disclosure, a box body is provided, comprising: a main body, which defines a accommodating space and is provided with a box opening; a door body, which is embedded and sealed in the box opening in an openable and closable manner; and a door lock as in any of the above embodiments is used to lock the door body and the box opening.

[0022] The refrigerator provided by the embodiment of the present disclosure can achieve the following technical effects:

[0023] By fixing the fixing part to the door frame, providing a guide groove and a fixing groove on the fixing part, and providing an elastic ball head structure on the door body, which cooperates with the guide groove and the fixing groove, the elastic ball head structure can be smoothly inserted into the fixing groove through the guide groove to lock the door when closing the door, and the elastic ball head structure can slide out along the guide groove to unlock the door when opening the door, thereby reducing the unlocking force, having a simple structure and low cost.

[0024] 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

[0025] 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:

[0026] Figure 1 is a structural schematic diagram of a box provided by an embodiment of the present disclosure;

[0027] Figure 2 yes Figure 1 The enlarged schematic diagram at A in the middle;

[0028] Figure 3 This is a schematic diagram of the structure of a box with its door open provided by an embodiment of the present disclosure;

[0029] Figure 4 yes Figure 3 The enlarged schematic diagram of point B in the middle;

[0030] Figure 5 is a structural schematic diagram of a fixing member provided by an embodiment of the present disclosure;

[0031] Figure 6 yes Figure 5 Schematic cross-sectional view of the middle edge CC;

[0032] Figure 7 This is a schematic diagram of the structure of a box in a closed state provided by an embodiment of the present disclosure;

[0033] Figure 8 is a schematic structural diagram of a telescopic rod provided by an embodiment of the present disclosure;

[0034] Fig. 9 It is a structural schematic diagram of a shell installed on a door body provided by an embodiment of the present disclosure.

[0035] Reference numerals:

[0036] 10: door lock; 11: fixing piece; 111: fixing groove; 112: guide groove; 12: elastic ball head structure; 121: telescopic ball head; 122: housing; 1221: installation cavity; 1222: limit table; 123: telescopic rod; 1231: guide hole; 124: elastic piece; 125: baffle; 126: guide rod;

[0037] 20: box body; 21: main body; 211: accommodating space; 22: box opening; 23: door body; 231: door frame; 232: telescopic hole. DETAILED DESCRIPTION

[0038] 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.

[0039] 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 that 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.

[0040] 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.

[0041] 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.

[0042] Unless otherwise stated, the term "plurality" means two or more.

[0043] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0044] 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.

[0045] 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.

[0046] At present, the internal structure of door locks with good automaticity is complex and the cost is high, and the automatic differential of door locks with simple structure is mostly cumbersome to open and close manually.

[0047] In the related art, a magnetic attraction structure door lock is used. However, the magnetic attraction structure door lock has high cost and has the problem of demagnetization, is prone to failure, and has high maintenance costs.

[0048] The present application fixes a fixing part to a door frame, arranges a guide groove and a fixing groove on the fixing part, and arranges an elastic ball head structure on the door body, which cooperates with the guide groove and the fixing groove. When closing the door, the elastic ball head structure can be smoothly inserted into the fixing groove through the guide groove to lock the door. When opening the door, the elastic ball head structure can slide out along the guide groove to unlock, thereby reducing the unlocking force. The structure is simple and the cost is low.

[0049] Combination Figures 1 to 9 As shown, the embodiment of the present disclosure provides a door lock 10, including a fixing member 11, which is arranged on a door frame 231 corresponding to a door body 23; the fixing member 11 is provided with a fixing groove 111 and a guide groove 112 connecting the fixing groove 111 and the outer end of the fixing member 11; an elastic ball head structure 12, which is arranged on the door body 23 corresponding to the fixing member 11, and the elastic ball head structure 12 includes a telescopic ball head 121; wherein, during the door closing process, the telescopic ball head 121 is inserted into the fixing groove 111 along the guide groove 112; during the door opening process, the telescopic ball head 121 moves out of the fixing groove 111 and slides out along the guide groove 112 until it is separated from the fixing member 11.

[0050] like Figures 1 to 3As shown, the fixing member 11 is in the shape of a plate, one side of the plate surface is fixedly attached to the left side wall of the box opening 22, and the other side of the plate surface opposite to the one side of the plate surface is provided with a fixing groove 111 corresponding to the door body 23, and the fixing groove 111 is recessed horizontally toward the left direction away from the door body 23, and the guide groove 112 connects the fixing groove 111 and guides it to the front of the door body 23. The elastic ball head structure 12 is arranged on the left side of the door body 23 in the closed state, and the elastic ball head structure 12 corresponds to the fixing member 11. In the closed state, the elastic ball head structure 12 includes a telescopic ball head 121 perpendicular to the fixing groove 111 and with the end embedded in the fixing groove 111, and the telescopic ball head 121 is controlled by the elastic member 124 to abut against the fixing groove 111 in the horizontal direction. During the door opening process, the end of the telescopic ball head 121 of the telescopic ball head 121 structure moves forward with the opening of the door body 23 until it is out of the fixed groove 111 and into the guide groove 112, and as the door body 23 opens forward, the end of the telescopic ball head 121 of the telescopic ball head 121 structure moves forward along the guide groove 112 until it is removed from the guide groove 112. During the door closing process, the end of the telescopic ball head 121 of the telescopic ball head 121 structure first slides from the front end of the guide groove 112 into the guide groove 112, and as the door body 23 continues to close, the telescopic ball head 121 moves to the fixed groove 111 under the guiding effect of the guide groove 112, and the door body 23 is pushed backward with force to make the telescopic ball head 121 snap into the fixed groove 111, thereby locking the door.

[0051] Optionally, the fixing groove 111 is a spherical crown groove, and the radius of the fixing groove 111 is equal to the radius of the telescopic ball head 121, so that when the door is closed, the telescopic ball head 121 is adapted to the fixing groove 111.

[0052] like Figures 3 to 6 As shown, the end of the telescopic ball head 121 is a ball head structure to facilitate sliding. The fixed groove 111 is a spherical crown-shaped groove, and the diameter of the sphere where the spherical crown is located is equal to the radius of the telescopic ball head 121. Since the diameter of the sphere where the spherical crown is located is too small, the telescopic ball head 121 is easy to fall out, resulting in the door lock 10 being unstable; if the diameter of the spherical crown is too large, it is easy to cause the telescopic ball head 121 to move in the fixed groove 111, causing the door body 23 to shake. The diameter of the spherical crown is set to be equal to the diameter of the telescopic ball head 121 so that the telescopic ball head 121 can fit with the fixed groove 111 when it is inserted into the fixed groove 111, thereby increasing the firmness and stability of the door lock 10.

[0053] Optionally, the width of the guide groove 112 gradually increases from the connection point of the fixing groove 111 to the outer end of the fixing member 11 , and at the outer end of the fixing member 11 , the width of the guide groove 112 is greater than the diameter of the telescopic ball head 121 .

[0054] like Figures 3 to 6As shown, the guide groove 112 is horn-shaped in the vertical direction, wherein the small end is connected to the fixed groove 111, and the large end extends to the front end of the box body 20. During the opening process of the door body 23, the telescopic ball head 121 escapes from the fixed groove 111 and enters the guide groove 112 under the guidance of the small end. As the door body 23 opens forward, the telescopic ball head 121 moves forward along the guide groove 112, and the opening size of the guide groove 112 gradually increases, reducing the obstruction to the telescopic ball head 121 and reducing the door opening pressure. During the closing process, due to the large opening at the front end of the guide groove 112, the telescopic ball head 121 can easily slide into the guide groove 112, slide backward along the guide groove 112, and the width of the guide groove 112 gradually decreases, so that the telescopic ball head 121 is gradually guided to the fixed groove 111, and finally stuck in the fixed groove 111.

[0055] Optionally, the bottom of the guide groove 112 is inclined away from the ball head along the direction from the connection with the fixing groove 111 to the outer end of the fixing member 11, so that during the door opening process, the pressure of the bottom of the guide groove 112 on the telescopic ball head 121 gradually decreases to reduce the force of opening the door.

[0056] like Figures 3 to 6 As shown, the height of the connection between the guide groove 112 and the fixed groove 111 is the same as the groove edge of the fixed groove 111, so that during the door closing process, the telescopic ball head 121 moves to the groove edge of the fixed groove 111 under the guidance of the guide groove 112, and finally snaps into the fixed groove 111. From back to front, the groove depth of the guide groove 112 gradually deepens to the left, so that after the telescopic ball head 121 escapes from the fixed groove 111, as the door body 23 opens, the guide groove 112 deepens, so that the compression amount of the telescopic ball head 121 by the guide groove 112 is reduced, that is, the pressure of the telescopic ball head 121 on the bottom of the guide groove 112 is gradually reduced, and the friction between the telescopic ball head 121 and the bottom of the guide groove 112 is also gradually reduced, thereby reducing the force of opening the door. During the door closing process, as the telescopic ball head 121 moves in the guide groove 112 toward the fixed groove 111, the depth of the guide groove 112 gradually decreases, which causes the pressure of the guide groove 112 on the telescopic ball head 121 to gradually increase. The elastic member 124 connected to the telescopic ball head 121 is compressed to increase its size and elastic force, and when it is inserted into the fixed groove 111, a sound of insertion is heard to prevent it from being loosened instantly, prompting the user to close the door in place. At the same time, a greater force is required for the telescopic ball head 121 to escape from the fixed groove 111, thereby preventing the telescopic ball head 121 from escaping from the fixed groove 111 and allowing the door body 23 to be locked securely.

[0057] Optionally, the elastic ball head structure 12 further includes a housing 122. The housing 122 defines a mounting cavity 1221, the housing 122 is disposed in the door body 23 corresponding to the fixing member 11, and the telescopic ball head 121 is disposed in the mounting cavity 1221; the door body 23 is provided with a telescopic hole 232 communicating with the mounting cavity 1221 corresponding to the fixing member 11, and in the door closed state, the telescopic ball head 121 passes through the telescopic hole 232 and is embedded in the fixing groove 111.

[0058] like Figure 2 As shown, the housing 122 is installed in the door body 23 in the horizontal direction corresponding to the fixing member 11. The opening of the housing 122 faces the fixing member 11, and a telescopic hole 232 is provided at the door body 23 corresponding to the opening of the housing 122. In the closed state, the telescopic ball head 121 passes through the opening of the housing 122 and the telescopic hole 232 in sequence from the installation cavity 1221, and then is embedded in the fixing groove 111 and abuts against the bottom of the fixing groove 111.

[0059] In some embodiments, the door body 23 includes an inner cavity, and the outer shell is installed in the inner cavity. The outer shell is fixedly connected to the inner cavity of the door body 23 by gluing.

[0060] In some embodiments, Figure 2 , Figure 8 and Fig. 9 As shown, the elastic ball head structure 12 also includes a guide rod 126, which is arranged in the shell 122, and the telescopic rod 123 is provided with a guide hole 1231 corresponding to the guide rod 126 along the telescopic direction; one end of the guide rod 126 is fixedly connected to the bottom wall of the shell 122, and the other end is inserted into the guide hole 1231 to limit the telescopic rod 123 from telescopically extending along the direction of the guide rod 126.

[0061] In some embodiments, Figure 8 and Fig. 9 As shown, there is a clearance fit between the guide hole 1231 and the guide rod 126, and the single-side clearance value ranges from 1 mm to 3 mm.

[0062] Optionally, the elastic ball head structure 12 further includes a telescopic rod 123 and an elastic member 124. The telescopic rod 123 is disposed in the mounting cavity 1221, and the telescopic ball head 121 is disposed at the protruding end of the telescopic rod 123; one end of the elastic member 124 is connected to the bottom wall of the corresponding telescopic hole 232 in the mounting cavity 1221, and the other end is connected to the telescopic rod 123; the elastic member 124 applies a thrust toward the telescopic hole 232 to the telescopic rod 123 so that the telescopic ball head 121 abuts against the fixing member 11.

[0063] like Figures 1 to 3As shown, the telescopic rod 123 is connected to the bottom of the housing 122 through the elastic member 124, so that the telescopic rod 123 can move horizontally between the position retracted from the telescopic hole 232 to the inside of the housing 122 and the position extended from the telescopic hole 232 to the outside of the housing 122 under the elastic force of the elastic member 124. One end of the telescopic rod 123 corresponding to the telescopic hole 232 is a telescopic ball head 121, and the elastic member 124 is connected to the other end of the telescopic rod 123. When the door is closed, the telescopic ball head 121 moves toward the installation cavity 1221 under the pressure of the fixing groove 111, compressing the elastic member 124. The elastic member 124 applies elastic force to the telescopic rod 123 to make the telescopic ball head 121 abut against the fixing groove 111, and generates a certain abutting force to prevent the elastic ball head from detaching from the fixing groove 111. During the door opening process, the door body 23 is opened by pulling force so that the elastic ball head is separated from the fixed groove 111 and enters the guide groove 112. The depth of the guide groove 112 gradually deepens from the fixed groove 111 to the front side of the box body 20, and the pressure on the telescopic ball head 121 gradually decreases, so that the door opening force gradually decreases. After the door body 23 is fully opened, the elastic member 124 restores the extension of the telescopic ball head 121, and the length of the telescopic ball head 121 extending out of the telescopic hole 232 reaches the maximum.

[0064] In some embodiments, the elastic member 124 includes one or more of a spring, a rubber pad, and an elastic pad.

[0065] Optionally, the elastic ball head structure 12 further includes a baffle 125 . The baffle 125 is vertical and protrudes outward from the outer wall of the telescopic rod 123 ; a side surface of the baffle 125 abuts against the elastic member 124 to push the telescopic rod 123 to move toward the telescopic hole 232 .

[0066] like Figures 2 to 4 As shown, the outer edge size of the baffle 125 is larger than the size of the telescopic hole 232. When the door is opened, the spring recovers the extension to push the telescopic rod 123 toward the telescopic hole 232. The baffle 125 abuts against the wall of the telescopic hole 232 to prevent the telescopic rod 123 from extending too long from the telescopic hole 232 and affecting the closing of the door. Figure 2 L2 is the distance between the side end of the door body 23 and the entrance of the guide groove 112 of the fixing member 11 in the closed state. Figure 4 L is the length of the telescopic rod 123 extending out of the telescopic hole 232 in the door opening state, and L is smaller than L2, so that during the door closing process, the telescopic ball head 121 can smoothly enter the guide groove 112 and will not be stuck outside the guide groove 112. During the door closing process, the fixing member 11 compresses the telescopic rod 123 to move the baffle 125 toward the accommodating cavity.

[0067] Optionally, the outer diameter of the baffle 125 is larger than the aperture of the telescopic hole 232 to prevent the telescopic rod 123 from falling off the telescopic hole 232 .

[0068] like Figure 2 and Figure 4As shown, in the door open state, the outer edge of the baffle 125 abuts against the wall of the telescopic hole 232, so that the extension length of the telescopic rod 123 does not exceed the length from the telescopic ball head 121 to the baffle 125, so as to control the telescopic rod 123 to slide smoothly into the guide groove 112 during the door closing process.

[0069] Optionally, the housing 122 includes a limiting platform 1222. The limiting platform 1222 corresponds to the portion between the baffle 125 and the bottom wall of the installation cavity 1221, and is protruded from the inner wall of the installation cavity 1221; wherein, along the telescopic direction of the telescopic rod 123, the distance between the limiting platform 1222 and the telescopic hole 232 is less than the length of the telescopic rod 123 protruding out of the telescopic hole 232 in the door-open state, and the distance between the limiting platform 1222 and the telescopic hole 232 is greater than the length of the telescopic rod 123 protruding out of the telescopic hole 232 in the door-closed state.

[0070] like Figure 2 As shown, the inner diameter of the accommodating cavity of the shell 122 at the corresponding baffle 125 is larger than the inner diameter of the accommodating cavity at the telescopic rod 123. The connection point between the accommodating cavity corresponding to the baffle 125 and the accommodating cavity corresponding to the telescopic rod 123 is a limit platform 1222. When the door is closed, the fixing member 11 compresses the telescopic rod 123 so that the baffle 125 moves toward the shell 122 following the telescopic rod 123, and the distance L1 between the limit platform 1222 and the telescopic hole 232 is smaller than the distance between the baffle 125 and the telescopic ball head 121. Before the telescopic ball head 121 is completely retracted into the shell 122, the baffle 125 abuts against the limit platform 122, so that the telescopic ball head 121 at least partially extends out of the telescopic hole 232, so as to prevent the telescopic rod 123 from being completely retracted into the shell 122 and unable to pop out.

[0071] Combination Figures 1 to 7 As shown, the embodiment of the present disclosure provides a box 20, including a main body 21, a door body 23 and a door lock 10 as in any of the above embodiments. The main body 21 defines a receiving space 211, and the main body 21 is provided with a box opening 22; the door body 23 can be opened and closed and embedded in the box opening 22; the door lock 10 is used to lock the door body 23 and the box opening 22.

[0072] like Figure 3 and Figure 7 As shown, the front end of the box body 20 is provided with a box opening 22, the shape of the box opening 22 is adapted to the door body 23, the door body 23 blocks the box opening 22 from the front, and the periphery of the door body 23 is adapted to the edge of the box opening 22. A door frame 231 is provided at the outer edge of the box opening 22, and the door frame 231 protrudes forward relative to the box opening 22, so that the inner side of the door frame 231 corresponds to the side of the door body 23. Among them, the width dimension of the inner side of the door frame 231 is greater than the dimension of the fixing member 11, so that the fixing member 11 can be attached to the inner side of the door frame 231.

[0073] The above description and the accompanying drawings fully 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. Parts and features of some embodiments may be included in or replace parts and features of other embodiments.

[0074] Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include the plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of one or more associated listings.

[0075] In addition, when used in this application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or groups thereof. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the presence of other identical elements in the process, method or device that includes the elements.

[0076] In this article, each embodiment may focus on the differences from other embodiments, and the same or similar parts between the embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts may refer to the description of the method part.

[0077] The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the 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 door lock, characterized in that: include: A fixing part, which is arranged on the door frame corresponding to the door body; The fixing piece is provided with a fixing groove and a guide groove connecting the fixing groove and the outer end of the fixing piece; An elastic ball head structure is provided on the door body corresponding to the fixing piece, and the elastic ball head structure includes a telescopic ball head; During the door closing process, the telescopic ball head is inserted into the fixed groove along the guide groove; during the door opening process, the telescopic ball head moves out of the fixed groove and slides out along the guide groove until it is separated from the fixing part.

2. The door lock according to claim 1, characterized in that: The fixing groove is a spherical crown groove, and the radius of the fixing groove is equal to the radius of the telescopic ball head, so that when the door is closed, the telescopic ball head is adapted to the fixing groove.

3. The door lock according to claim 1, characterized in that: The width of the guide groove increases gradually from the connection of the fixing groove to the outer end of the fixing member. At the outer end of the fixing member, the width of the guide groove is greater than the diameter of the telescopic ball head.

4. The door lock according to claim 3, characterized in that: The bottom of the guide groove is inclined from the connection with the fixing groove to the outer end of the fixing piece toward the direction away from the ball head, so that during the door opening process, the pressure of the bottom of the guide groove on the telescopic ball head gradually decreases to reduce the force of opening the door.

5. The door lock according to any one of claims 1 to 4, characterized in that: The elastic ball head structure also includes: The housing defines a mounting cavity, the housing corresponding to the fixing piece is arranged in the door body, and the telescopic ball head is arranged in the mounting cavity; The door body is provided with a telescopic hole communicating with the installation cavity corresponding to the fixing piece. When the door is closed, the telescopic ball head passes through the telescopic hole and is embedded in the fixing groove.

6. The door lock according to claim 5, characterized in that: The elastic ball head structure also includes: The telescopic rod is arranged in the installation cavity, and the telescopic ball head is arranged at the extended end of the telescopic rod; An elastic member, one end of which is connected to the bottom wall of the corresponding telescopic hole in the installation cavity, and the other end of which is connected to the telescopic rod; The elastic member applies a thrust toward the telescopic hole to the telescopic rod so that the telescopic ball head abuts against the fixing member.

7. The door lock according to claim 6, characterized in that: The elastic ball head structure also includes: The baffle is protruding outwards from the outer wall of the vertical telescopic rod; A plate surface on one side of the baffle plate abuts against the elastic member to push the telescopic rod to move toward the telescopic hole.

8. The door lock according to claim 7, characterized in that: The outer diameter of the baffle is larger than the aperture of the telescopic hole to prevent the telescopic rod from falling off the telescopic hole.

9. The door lock according to claim 7, characterized in that: The housing includes: The limiting platform corresponds to the area between the baffle plate and the bottom wall of the installation cavity and is convexly arranged on the inner wall of the installation cavity; Among them, along the extension direction of the telescopic rod, the distance between the limit platform and the telescopic hole is smaller than the length of the telescopic rod protruding out of the telescopic hole in the door open state, and the distance between the limit platform and the telescopic hole is greater than the length of the telescopic rod protruding out of the telescopic hole in the door closed state.

10. A box, characterized in that: include: The main body defines a containing space and is provided with a box opening; The door body can be opened and closed and embedded in the box opening; The door lock as claimed in any one of claims 1 to 9 is used to lock a door body and a box opening.

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