A catch device

Abstract

The utility model discloses a lock catch device, including first lock catch subassembly and second lock catch subassembly, wherein, first lock catch subassembly is equipped with first lock catch piece and second lock catch hole, first lock catch piece can be inserted in first lock catch hole, to with box frame lock catch connection, second lock catch subassembly is equipped with second lock catch piece, second lock catch piece can be inserted in first lock catch hole, to with box frame lock catch connection, second lock catch piece still can be inserted in second lock catch hole, to with first lock catch subassembly lock catch connection. Lock catch device sets up through first lock catch subassembly and second lock catch subassembly, and adjacent box frame carries out one kind structural form's splicing connection through first lock catch subassembly and second lock catch subassembly. Cancel first lock catch subassembly, and adjacent box frame can carry out another structural form's splicing through second lock catch subassembly.

Description

Technical Field

[0001] This utility model relates to the field of display device technology, and in particular to a locking device. Background Technology

[0002] With the rapid development of LED displays, the requirements for stage setup and application of rental screens are becoming increasingly stringent. As rental screens are widely used, the requirements for their splicing capabilities are also increasing.

[0003] In related technologies, when adjacent display modules are spliced ​​together, one display module has a locking structure and the other has a fastening structure. The locking structure and the fastening structure are locked together, thereby realizing the planar splicing connection of adjacent display modules. However, for some more complex splicing structures, the above-mentioned locking and fastening structures cannot be applied to splice display devices with various structural forms. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a locking device that is applicable to various splicing methods of adjacent box frames.

[0005] This application provides a locking device for a box frame, the box frame having a first locking hole; comprising:

[0006] The first locking assembly is provided with a first locking member and a second locking hole. The first locking member can be inserted into the first locking hole to be connected with the box frame locking assembly.

[0007] The second locking assembly includes a second locking member, which can be inserted into the first locking hole to be locked with the frame; the second locking member can also be inserted into the second locking hole to be locked with the first locking assembly.

[0008] According to some embodiments of the present invention, the first locking assembly further comprises:

[0009] The first locking seat has a first movable hole and a second locking hole. The first locking member slides through the first movable hole, and the axial direction of the first movable hole is perpendicular to the axial direction of the second locking hole.

[0010] The first fastening component is disposed on the first locking seat and near the second locking hole, and is used to lock and connect with the second locking member.

[0011] According to some embodiments of the present invention, the first locking seat includes a first connecting part and a second connecting part, the second connecting part protruding from the side of the first connecting part, the first movable hole being disposed in the first connecting part, and the second locking hole and the first fastening component being disposed in the second connecting part.

[0012] According to some embodiments of the present invention, the second connecting portion includes two first side plate portions and a second side plate portion. The two first side plate portions are connected to the side portions of the first connecting portion. The second side plate portion is connected between the two first side plate portions and is spaced apart from the first connecting portion. The second locking hole is disposed in the second side plate portion, and the first fastening component is disposed in the second side plate portion.

[0013] According to some embodiments of the present invention, the first fastening assembly includes a first fastening member and a first elastic member. The first fastening member is slidably disposed on the first locking seat, and the first elastic member is disposed on the first locking seat, for the first fastening member to at least partially cover the second locking hole so as to lock and connect with the second locking member.

[0014] According to some embodiments of the present utility model, the first locking member includes a first locking rod and a first operating handle. The first locking rod is movably inserted through the first movable hole. One end of the first locking rod is provided with a first slot to be connected to the box frame lock. The first operating handle is connected to the other end of the first locking rod.

[0015] The first locking assembly further includes a first elastic component and a first guide component. The first elastic component is disposed on the first locking seat and acts on the first operating handle in a direction away from the first locking seat. The first guide component is threadedly connected to the side of the first connecting portion. The side of the first locking rod is provided with a first guide groove along its axial direction, and the inner end of the first guide component extends into the first guide groove.

[0016] According to some embodiments of the present invention, the second locking assembly further includes a second locking seat, the second locking seat is provided with a second movable hole, the second locking member includes a second locking rod and a second operating handle, the second locking rod is movably inserted through the second movable hole, one end of the second locking rod can be inserted into the first locking hole or the second locking hole to connect with the first locking assembly or the box frame locking, and the second operating handle is connected to the other end of the second locking rod.

[0017] According to some embodiments of the present invention, the second locking assembly further includes a second elastic component and a second guide component, wherein the second elastic component is disposed on the second locking seat and is used to act on the second operating handle in a direction away from the second locking seat; the second guide component is threadedly connected to the side of the first locking seat, and the side of the second locking rod is provided with a second guide groove along its axial direction, and the inner end of the second guide component extends into the second guide groove.

[0018] According to some embodiments of the present invention, the second locking seat includes a third connecting part and a fourth connecting part. The third connecting part is connected to the box frame, and the fourth connecting part is provided with a second movable hole. The second locking rod is movably inserted through the second movable hole.

[0019] The fourth connecting part has a splicing plane and a clearance slope on the side near the first locking seat. The splicing plane is fitted to the first locking seat, the second movable hole passes through the splicing plane, and the clearance slope is inclined relative to the splicing plane toward the side away from the first locking seat.

[0020] According to some embodiments of the present invention, the locking device further includes a second fastening assembly, the second fastening assembly including a second fastening member and a second elastic member, the second fastening member being slidably disposed on the box frame, and the second elastic member being used to make the second fastening member at least partially located in the second locking hole, so as to lock and connect with the first locking member or the second locking member.

[0021] As can be seen from the above technical solutions, the embodiments of this application have the following advantages: In one application form, the first locking member passes through the first locking hole to lock and connect with the first frame, that is, the first locking assembly is installed on the first frame; at the same time, the second locking assembly is installed on the second frame, the second locking member passes through the second locking hole, and locks and connects with the first locking assembly. Therefore, the first locking assembly is connected to the first frame, the second locking assembly is connected to the second frame, and the first locking assembly and the second locking assembly are locked and connected, thereby achieving a structural splicing connection between the first frame and the second frame.

[0022] In another application, the first locking assembly is omitted, and the second locking assembly is installed on the second frame. The second locking element passes through the first locking hole and is locked to the first frame. Thus, the second frame is connected to the first frame through the second locking assembly, and the first frame and the second frame are assembled and connected, thereby realizing a splicing connection of the first frame and the second frame in another structural form. Attached Figure Description

[0023] Figure 1This is a schematic diagram of a splicing structure of adjacent box frames according to an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of another splicing structure of adjacent box frames according to an embodiment of the present utility model;

[0025] Figure 3 This is an exploded view of a portion of the first locking structure in an embodiment of the present utility model;

[0026] Figure 4 This is an exploded view of another part of the first locking structure in an embodiment of the present utility model;

[0027] Figure 5 This is an exploded view of the second locking assembly according to an embodiment of the present utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the second fastening component and the frame in an embodiment of the present utility model;

[0029] Figure 7 This is an exploded view of the second fastening component according to an embodiment of the present invention.

[0030] The meanings of the reference numerals in the attached figures are as follows:

[0031] 10. Case frame; 11. First locking hole; 100. First locking assembly; 110. First locking seat; 111. First connecting part; 1111. First movable hole; 112. Second connecting part; 1121. First side plate part; 1122. Second side plate part; 1123. Second locking hole; 120. First locking element; 121. First locking rod; 1211. First slot; 1212. First guide groove; 122. First operating handle; 130. First fastening assembly; 131. First fastening element; 132. First elastic element; 133. First retaining cover; 140. First Guide component; 150, First elastic component; 200, Second locking assembly; 210, Second locking seat; 211, Third connecting part; 212, Fourth connecting part; 2121, Second movable hole; 213, Splicing plane; 214, Leaving slope; 220, Second locking component; 221, Second locking rod; 2211, Second slot; 2212, Second guide groove; 222, Second operating handle; 230, Second guide component; 240, Second elastic component; 300, Second fastening assembly; 310, Second fastening component; 320, Second elastic component; 330, Second retaining cover. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0033] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, up, down, etc., indicating the directional or positional relationship, are based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0035] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0036] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The present invention will now be described in further detail with reference to the accompanying drawings.

[0038] This application discloses a locking device; please refer to [link / reference]. Figures 1 to 2 It is applied to the box frame 10, which is provided with a first locking hole 11. The locking device is used for the assembly of various structural forms of the box frame 10.

[0039] The locking device includes a first locking assembly 100 and a second locking assembly 200. The first locking assembly 100 is provided with a first locking member 120 and a second locking hole 1123. The first locking member 120 can be inserted into the first locking hole 1123 to lock and connect with the box frame 10. The second locking assembly 200 is provided with a second locking member 220. The second locking member 220 can be inserted into the first locking hole 1123 to lock and connect with the box frame 10. The second locking member 220 can also be inserted into the second locking hole 1123 to lock and connect with the first locking assembly 100.

[0040] For ease of description, the adjacent box racks 10 can be divided into a first box rack 10 and a second box rack 10. The first box rack 10 is provided with a first locking hole 11. A first locking assembly 100 can be installed on the first box rack 10 through the first locking hole 11, and a second locking assembly 200 can be installed on the second box rack 10.

[0041] In one application, the first locking element 120 passes through the first locking hole 11 to lock and connect with the first frame 10, i.e., the first locking assembly 100 is installed on the first frame 10; simultaneously, the second locking assembly 200 is installed on the second frame 10, and the second locking element 220 passes through the second locking hole 1123 and locks and connects with the first locking assembly 100. Thus, the first locking assembly 100 is connected to the first frame 10, and the second locking assembly 200 is connected to the second frame 10, achieving a structural splicing connection between the first frame 10 and the second frame 10.

[0042] In another application, the first locking assembly 100 is omitted, and the second locking assembly 200 is installed on the second frame 10. The second locking member 220 passes through the first locking hole 11 and is locked to the first frame 10. Thus, the second frame 10 is connected to the first frame 10 through the second locking assembly 200. The first frame 10 and the second frame 10 are assembled and connected, thereby realizing a splicing connection of the first frame 10 and the second frame 10 in another structural form.

[0043] As can be seen from the above, the locking device is provided through the first locking assembly 100 and the second locking assembly 200. The first frame 10 and the second frame 10 can be connected in one structural form through the first locking assembly 100 and the second locking assembly 200, thereby realizing the first frame 10 and the second frame 10 in one structural form, and thus splicing them into a display device of one structural form. The first frame 10 and the second frame 10 can be connected in another structural form through the second locking assembly 200, thereby realizing the first frame 10 and the second frame 10 in another structural form, and thus splicing them into a display device of another structural form.

[0044] In some embodiments, the first locking assembly 100 further includes a first locking seat 110 and a first engaging assembly 130. The first locking seat 110 has a second locking hole 1123 and a first movable hole 1111, with the axial direction of the second locking hole 1123 perpendicular to the axial direction of the first movable hole 1111. The first locking member 120 is movably disposed in the first movable hole 1111 of the first locking seat 110, perpendicular to the axial direction of the second locking hole 1123. The first engaging assembly 130 is disposed in the first locking seat 110 and close to the second locking hole 1123, for locking connection with the second locking member 220.

[0045] In one specific application, when the first locking assembly 100 is applied between adjacent cabinets 10, the first locking member 120 is perpendicular to the back side of the cabinet 10, so as to be able to lock and connect with the back side of one cabinet 10. The axial direction of the second locking hole 1123 is perpendicular to the axial direction of the first movable hole 1111, and the axial direction of the second locking hole 1123 is oriented towards the width direction of the cabinet 10. Therefore, when adjacent cabinets 10 are spliced, the second locking member 220 can be easily inserted into the second locking hole 1123, thereby locking and connecting with the first fastening assembly 130. With this configuration, the second cabinet 10 achieves planar splicing connection with the first cabinet 10 through the first locking assembly 100 and the second locking assembly 200, thereby realizing the planar splicing connection of adjacent display modules.

[0046] Of course, if the second locking member 220 is directly inserted into the first locking hole 11 to lock and connect with the first frame 10, the first frame 10 and the second frame 10 can be vertically connected, thereby realizing the vertical splicing connection of adjacent display modules.

[0047] In some embodiments, please refer to Figure 1 , Figure 3 and Figure 4The first locking seat 110 includes a first connecting portion 111 and a second connecting portion 112 connected together, with the second connecting portion 112 protruding from the side of the first connecting portion 111. The first connecting portion 111 has a first movable hole 1111 along its thickness direction, extending through opposite sides of the first connecting portion 111, and the first locking member 120 slides through the first movable hole 1111. The second connecting portion 112 is generally U-shaped and connected to the side of the first connecting portion 111. Specifically, the second connecting portion 112 includes two first side plate portions 1121 and one second side plate portion 1122. The two first side plate portions 1121 are connected to the side of the first connecting portion 111 and spaced apart, while the second side plate portion 1122 is connected between the two first side plate portions 1121 and spaced apart from the first connecting portion 111. The second locking hole 1123 is provided on the second side plate portion 1122, and the first fastening assembly 130 is provided on the second side plate portion 1122 for snap-fit ​​connection of the second locking member 220.

[0048] It is understandable that the first locking seat 110 adopts the above-described structural form, with the second side plate portion 1122 and the first connecting portion 111 spaced apart to form a clearance space between them. With this configuration, the second locking rod 221 on the adjacent frame 10 can be inserted into the second locking hole 1123, i.e., the aforementioned clearance space, thereby locking and connecting with the first fastening assembly 130. Furthermore, the first locking seat 110 adopts the above-described structural form, resulting in a relatively simple overall structure, and the first locking seat 110 can be conveniently used to connect adjacent frames 10.

[0049] In some embodiments, please refer to Figure 3 and Figure 4 The first fastening assembly 130 includes a first fastening member 131 and a first elastic member 132. The first fastening member 131 is slidably disposed on the side of the second side plate portion 1122 near the first connecting portion 111. The first elastic member 132 is disposed on the second side plate portion 1122 and is used to make the first fastening member 131 at least partially cover the second locking hole 1123. At the same time, the second locking member 220 is provided with a second slot 2211, and the first fastening member 131 is locked and connected to the second locking member 220 through the second slot 2211.

[0050] In practical applications, the first locking seat 110 is fitted onto the frame 10, and the first locking member 120 is inserted into the first locking hole 11 of the frame 10 and locked together with the frame 10, thereby installing the first locking seat 110 onto the frame 10. When adjacent frames 10 are spliced ​​together, the second locking member 220 can be inserted into the second locking hole 1123, and the first fastening member 131, under the action of the first elastic member 132, locks together with the second slot 2211 on the side wall of the second locking member 220, thereby realizing the splicing connection between adjacent frames 10.

[0051] As can be seen from the above, the first locking assembly 100, through the provision of the first locking member 120, can be more conveniently assembled with the frame 10; and the first locking assembly 100, through the provision of the first fastening member 131, can be locked and connected with the adjacent frame 10, thereby making the assembly of the adjacent frame 10 more convenient. Therefore, the first locking assembly 100 adopts the above-described structural form, which facilitates the splicing between display modules.

[0052] Furthermore, the first fastening assembly 130 also includes a first retaining cover 133, which is connected to the side of the second side plate portion 1122 near the first connecting portion 111, forming a guide gap between them. The first retaining cover 133 has a clearance opening corresponding to the second locking hole 1123, allowing the second locking rod 221 to make way. The first fastening member 131 is generally L-shaped and at least partially slides within the guide gap. An operating portion is formed at one end of the first fastening member 131, located outside the guide gap. The first elastic member 132 is located in the guide gap. One end of the first elastic member 132 abuts against the side wall of the second side plate portion 1122, and the other end abuts against the first fastening member 131. The first elastic member 132 is used to move the first fastening member 131 at least partially to the position of blocking the second locking hole 1123, so as to lock and connect with the second locking rod 221 inserted into the second locking hole 1123.

[0053] In practical applications, when the second locking rod 221 is inserted into the second locking hole 1123, the second locking rod 221 overcomes the force exerted by the first elastic element 132 on the first fastening element 131, and the hole of the first fastening element 131 is opposite to the second locking hole 1123. When the second slot 2211 on the side of the second locking rod 221 moves to the position corresponding to the first fastening element 131, the first elastic element 132 acts on the first fastening element 131 in the direction of the second slot 2211, thereby making the hole of the first fastening element 131 lock and connect with the second slot 2211 on the second locking rod 221, thus realizing the splicing connection between adjacent frame frames 10. When it is necessary to separate adjacent frames 10, the user can push the first fastening member 131 toward the outside of the guide gap through the operating part (handle). The first fastening member 131 separates from the second locking rod 221, thereby releasing the restriction on the second locking rod 221. The second locking rod 221 can be separated from the second locking hole 1123, thus making it convenient to separate the frame 10.

[0054] In some embodiments, please refer to Figure 3 and Figure 4The first locking element 120 includes a first locking rod 121 and a first operating handle 122. The first locking rod 121 is movably inserted through the first movable hole 1111. One end of the first locking rod 121 is provided with a first slot 1211 for locking with the box frame 10. The first operating handle 122 is threaded or fixedly connected to the other end of the first locking rod 121 and abuts against the side of the first locking seat 110 away from the box frame 10.

[0055] Also refer to Figure 6 and Figure 7 The locking device also includes a second fastening assembly 300, which includes a second fastening member 310, a second elastic member 320, and a second retaining cover 330. The second retaining cover 330 is connected to the side of the frame 10 away from the first locking seat 110, forming a guide gap between them. The second retaining cover 330 has a clearance opening, which corresponds to the first locking hole 11, for the first locking rod 121 to pass through. The second fastening member 310 is generally L-shaped and slides within the guide gap. An operating part is formed at one end of the second fastening member 310, located outside the guide gap. The second elastic member 320 is located in the guide gap. One end of the second elastic member 320 abuts against the side wall of the second side plate portion 1122, and the other end abuts against the second fastening member 310. The second elastic member 320 is used to move the second fastening member 310 at least partially to the position of the first locking hole 11 so as to lock and connect with the first locking rod 121 inserted into the first locking hole 11.

[0056] In practical application, when the first locking rod 121 is inserted into the first locking hole 11, the first locking rod 121 overcomes the force exerted by the second elastic element 320 on the second fastening element 310, and the hole position of the second fastening element 310 is opposite to the first locking hole 11. When the first slot 1211 of the first locking rod 121 moves to the position of the second fastening element 310, the second elastic element 320 acts on the second fastening element 310 in the direction of the first slot 1211, thereby locking and connecting with the first slot 1211 on the first locking rod 121, and thus fixing the first locking seat 110 to the frame 10. When it is necessary to disassemble the first locking seat 110, the user can push the second fastening member 310 toward the outside of the guide gap through the operating part. The second fastening member 310 separates from the first locking rod 121, thereby releasing the restriction on the first locking rod 121. Thus, the first locking rod 121 can be separated from the first locking hole 11, which makes it convenient to disassemble the first locking seat 110.

[0057] The first operating handle 122 is threadedly connected to the other end of the first locking rod 121 and abuts against the side of the first locking seat 110 away from the frame 10. Thus, when a locked state is required, the second fastening member 310 engages with the first locking groove 1211, the first locking rod 121 is threadedly connected to the first locking seat 110, and the first locking rod 121 moves away from the frame 10, thereby securely engaging the first locking rod 121 with the first fastening member 131. When the first locking rod 121 needs to be unlocked, the first locking rod 121 is threadedly connected to the first locking seat 110 in the opposite direction, and the first locking rod 121 moves towards the frame 10. At this time, the user can unlock the first locking rod 121 by pushing the second fastening member 310.

[0058] Furthermore, the first locking assembly 100 also includes a first elastic member 150, which is disposed on the first locking seat 110. One end of the first elastic member 150 abuts against the first locking seat 110, and the other end abuts against the side of the handle near the first locking seat 110. Thus, the first elastic member 150 acts on the handle in the direction away from the first connecting part 111.

[0059] Understandably, when the handle is rotated to the unlocked state, if the user pushes the second fastening member 310 to release the locking connection with the first locking rod 121, the first elastic member 150 will push the first locking rod 121 away from the box frame 10 through the handle, so that the first locking rod 121 can remain in the unlocked state with the box frame 10, thereby facilitating the disassembly of the first locking assembly 100.

[0060] Furthermore, the first locking assembly 100 also includes a first guide member 140. For example, the first guide member 140 is configured as a bolt, threadedly connected to the side of the first connecting portion 111. The side of the first locking rod 121 has a first guide groove 1212 along its axial direction. The first guide groove 1212 does not penetrate the end of the first locking rod 121, that is, both ends of the first guide groove 1212 are closed, and the inner end of the first guide member 140 extends into the first guide groove 1212. With this configuration, during the axial sliding process of the first locking rod 121, the first guide member 140 causes the first locking rod 121 to move within a set range, thereby facilitating the user to control the position of the first locking rod 121. Meanwhile, the first guide member 140 restricts the circumferential rotation of the first locking rod 121. With this configuration, when the user rotates the handle, the first locking rod 121 will not rotate with the handle, so that the first locking rod 121 is displaced along its axial direction when the handle is rotated, so that the first locking rod 121 and the second fastening member 310 can maintain a secure locking connection.

[0061] In some embodiments, please refer to Figure 3 and Figure 5 The second locking assembly 200 also includes a second locking seat 210, which has a second movable hole 2121. The second locking member 220 includes a second locking rod 221 and a second operating handle 222. The second locking rod 221 is movably inserted through the second movable hole 2121. One end of the second locking rod 221 can be inserted into the first locking hole 11 or the second locking hole 1123 to lock and connect with the first locking assembly 100 or the frame 10. The second operating handle 222 is threaded or fixedly connected to the other end of the second locking rod 221.

[0062] In one application, a first locking assembly 100 is installed on the frame 10. The user can drive a second locking rod 221 through a second operating handle 222 to insert it into the second locking hole 1123 on the first locking seat 110, thereby connecting it to the first locking seat 110 and achieving planar splicing between adjacent frames 10. In another application, the frame 10 does not have the first locking assembly 100 installed. The user can drive a second locking rod 221 through the second operating handle 222 to insert it into the second locking hole 1123 on the frame 10, thereby connecting it to the frame 10 and achieving vertical splicing between adjacent frames 10.

[0063] Furthermore, the second locking seat 210 is generally L-shaped. Specifically, the second locking seat 210 includes a third connecting part 211 and a fourth connecting part 212. The third connecting part 211 is connected to the frame 10, and the fourth connecting part 212 is provided with a second movable hole 2121, through which the second locking rod 221 movably passes. The fourth connecting part 212 has a splicing plane 213 and a clearance slope 214 on the side near the first locking seat 110. The splicing plane 213 fits snugly against the first locking seat 110, the second movable hole 2121 passes through the splicing plane 213, and the clearance slope 214 is inclined relative to the splicing plane 213 towards the side away from the first locking seat 110.

[0064] Understandably, the fourth connecting part 212 has a splicing plane 213 and a clearance slope 214 on the side near the first locking seat 110. The splicing plane 213 allows for a tight fit with the first locking seat 110, ensuring a tight connection between the first locking assembly 100 and the second locking assembly 2000, and thus ensuring a tight splicing connection between adjacent frame frames 10. Furthermore, the second locking seat 210 is typically manufactured using die casting. The clearance slope 214 allows for easy separation of the second locking seat 210 from the mold.

[0065] Furthermore, the second locking assembly 200 also includes a second guide member 230. For example, the second guide member 230 is configured as a bolt, threadedly connected to the side of the second connecting portion 112. The side of the second locking rod 221 has a second guide groove 2212 along its axial direction. The second guide groove 2212 does not penetrate the end of the second locking rod 221; that is, both ends of the second guide groove 2212 are closed, and the inner end of the second guide member 230 extends into the second guide groove 2212. With this configuration, during the axial sliding process of the second locking rod 221, the second guide member 230 causes the second locking rod 221 to move within a set range, thereby facilitating the user's position control of the second locking rod 221. Meanwhile, the second guide member 230 restricts the circumferential rotation of the second locking rod 221. With this configuration, when the user rotates the handle, the second locking rod 221 will not rotate with the handle, so that the second locking rod 221 will be displaced along its axial direction when the handle is rotated, so that the second locking rod 221 and the second fastening member 310 can maintain a stable locking connection.

[0066] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A locking device, characterized in that, Applied to a case frame, the case frame having a first locking hole; the locking device includes: The first locking assembly is provided with a first locking member and a second locking hole. The first locking member can be inserted into the first locking hole to be connected with the box frame locking assembly. The second locking assembly includes a second locking member, which can be inserted into the first locking hole to be locked with the frame; the second locking member can also be inserted into the second locking hole to be locked with the first locking assembly.

2. The locking device according to claim 1, characterized in that, The first locking assembly also includes: The first locking seat has a first movable hole and a second locking hole. The first locking member slides through the first movable hole, and the axial direction of the first movable hole is perpendicular to the axial direction of the second locking hole. The first fastening component is disposed on the first locking seat and near the second locking hole, and is used to lock and connect with the second locking member.

3. The locking device according to claim 2, characterized in that, The first locking seat includes a first connecting part and a second connecting part. The second connecting part protrudes from the side of the first connecting part. The first movable hole is disposed in the first connecting part. The second locking hole and the first fastening component are disposed in the second connecting part.

4. The locking device according to claim 3, characterized in that, The second connecting portion includes two first side plates and a second side plate. The two first side plates are connected to the sides of the first connecting portion. The second side plate is connected between the two first side plates and is spaced apart from the first connecting portion. The second locking hole is provided in the second side plate and the first fastening component is provided in the second side plate.

5. The locking device according to any one of claims 2 to 4, characterized in that, The first fastening assembly includes a first fastening member and a first elastic member. The first fastening member is slidably disposed on the first locking seat, and the first elastic member is disposed on the first locking seat, for the first fastening member to at least partially cover the second locking hole so as to lock and connect with the second locking member.

6. The locking device according to claim 3, characterized in that, The first locking component includes a first locking rod and a first operating handle. The first locking rod is movably inserted through the first movable hole. One end of the first locking rod is provided with a first slot to be connected to the box frame lock. The first operating handle is connected to the other end of the first locking rod. The first locking assembly further includes a first elastic component and a first guide component. The first elastic component is disposed on the first locking seat and is used to act on the first operating handle in a direction away from the first locking seat. The first guide component is threadedly connected to the side of the first connecting portion. The side of the first locking rod is provided with a first guide groove along its axial direction, and the inner end of the first guide component extends into the first guide groove.

7. The locking device according to claim 1, characterized in that, The second locking assembly further includes a second locking seat, the second locking seat having a second movable hole, the second locking member including a second locking rod and a second operating handle, the second locking rod being movably inserted through the second movable hole, one end of the second locking rod being able to be inserted into the first locking hole or the second locking hole to connect with the first locking assembly or the box frame locking, and the second operating handle being connected to the other end of the second locking rod.

8. The locking device according to claim 7, characterized in that, The second locking assembly further includes a second elastic component and a second guide component. The second elastic component is disposed on the second locking seat and acts on the second operating handle in a direction away from the second locking seat. The second guide component is threadedly connected to the side of the first locking seat. The side of the second locking rod is provided with a second guide groove along its axial direction, and the inner end of the second guide component extends into the second guide groove.

9. The locking device according to claim 7, characterized in that, The second locking seat includes a third connecting part and a fourth connecting part. The third connecting part is connected to the box frame, and the fourth connecting part is provided with a second movable hole. The second locking rod is movably inserted through the second movable hole. The fourth connecting part has a splicing plane and a clearance slope on the side near the first locking seat. The splicing plane is fitted to the first locking seat, the second movable hole passes through the splicing plane, and the clearance slope is inclined relative to the splicing plane toward the side away from the first locking seat.

10. The locking device according to claim 1, characterized in that, The locking device further includes a second fastening assembly, which includes a second fastening member and a second elastic member. The second fastening member is slidably disposed on the frame, and the second elastic member is used to make the second fastening member at least partially located in the second locking hole for locking connection with the first locking member or the second locking member.

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