Lock catch structure and packaging box

Abstract

The utility model discloses a lock catch structure and a packaging box. The lock catch structure comprises a mounting base, a handle and a lock hook, the handle is rotatably connected to the mounting base through a first connecting shaft, the lock hook is rotatably arranged on the handle through a second connecting shaft, the first connecting shaft is parallel to the second connecting shaft, a lock hole is formed in the mounting base, and the lock hook is arranged in the lock hole. An anti-loosening assembly is arranged on the handle, and when the lock hook is in a locking state, the anti-loosening assembly is connected with the lock hole to prevent the handle from rotating. The lock catch structure provided by the utility model is used for locking the box cover and the box body on the packaging box, and is provided with the anti-loosening component, so that the lock catch structure can be effectively prevented from loosening and losing efficacy, and the packaging box is more reliable.

Description

Technical Field

[0001] This utility model relates to the field of packaging structure technology, and more specifically, to a locking structure and a packaging box. Background Technology

[0002] Locks are commonly used on packaging boxes as a structure connecting the box body and the lid. They have a simple structure and use hinges and levers to lock and unlock. Because of their ease of operation, they are widely used on various packaging boxes.

[0003] Currently, most locking mechanisms do not have an anti-loosening structure when locked. Although the structure of the lock itself has a certain anti-loosening function, it is difficult to avoid being affected by bumps and shaking during transportation, which may cause it to loosen and lead to locking failure. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model innovatively provides a locking structure and packaging box, which can solve the technical problem that the locking may loosen and cause locking failure in the prior art.

[0005] To achieve the aforementioned technical objectives, the first aspect of this utility model discloses a locking structure, including a mounting base, a handle, and a locking hook. The handle is rotatably connected to the mounting base via a first connecting shaft, and the locking hook is rotatably mounted on the handle via a second connecting shaft. The first connecting shaft and the second connecting shaft are parallel.

[0006] The mounting base is provided with a lock hole, and the handle is provided with an anti-loosening component. When the lock hook is in the locked state, the anti-loosening component is connected to the lock hole to prevent the handle from rotating.

[0007] Furthermore, the anti-loosening component includes an anti-loosening hook, which comprises a paddle and a hook plate. A first end of the paddle is connected to a first end of the hook plate, and a hook is provided at a second end of the hook plate for engaging with a keyhole.

[0008] A pivot is provided at the connection between the paddle and the hook, the pivot is perpendicular to the paddle and the hook, and the pivot is rotatably connected to the handle.

[0009] Furthermore, the anti-loosening component also includes a torsion spring, which is fitted on the rotating shaft. One end of the torsion spring abuts against the handle, and the other end abuts against the anti-loosening hook. The torsion spring provides elastic force to keep the hook on the anti-loosening hook engaged with the lock hole.

[0010] Furthermore, the mounting base has a flat plate structure, and two parallel first folding plates are formed on the first side of the mounting base. The first connecting shaft is connected to the two first folding plates.

[0011] A second folding plate is provided on the side of the mounting base away from the first folding plate. The second folding plate and the first folding plate are bent toward the same side, and the lock hole is formed on the second folding plate.

[0012] Furthermore, the handle includes two parallel connecting arms, the first ends of which are connected to the first connecting shaft, and the second ends of which are connected via a connecting rod. The pivot on the anti-loosening hook is rotatably connected to one end of the connecting rod.

[0013] The second connecting shaft is provided on both connecting arms near the first end.

[0014] Furthermore, the connecting arm has a bent structure.

[0015] Furthermore, the locking hook includes a hook body, a folded hook on a first side, a folded plate on a second side, and an inner surface of the hook body that is flat. Both the folded hook and the folded plate are bent towards the inner surface of the hook body. The folded hook is perpendicular to the inner surface of the hook body, and the folded plate forms an obtuse angle with the inner surface.

[0016] The folding plate is connected to the second connecting shaft.

[0017] Furthermore, a rubber pad is provided on the hook.

[0018] Furthermore, multiple rib structures are formed on the outer surface of the hook body.

[0019] The second aspect of this utility model discloses a packaging box, including a box body and a box lid, characterized in that the box body is provided with the above-mentioned locking structure, the mounting base is fixedly disposed on the outer wall of the box body, and when the box lid is closed on the box body, the locking hook hooks the edge of the box lid.

[0020] The beneficial effects of this utility model are as follows:

[0021] The locking structure provided by this utility model is used to lock the lid and body of a packaging box. It has an anti-loosening component, which can effectively prevent the locking structure from loosening and failing, making the packaging box more reliable. Attached Figure Description

[0022] Figure 1 This diagram shows a structural schematic of the locking structure according to an embodiment of the present invention;

[0023] Figure 2 A side view of the locking structure according to an embodiment of the present invention is shown;

[0024] Figure 3 This diagram shows the structural schematic of the mounting base according to an embodiment of the present invention;

[0025] Figure 4 This diagram shows a structural schematic of the handle according to an embodiment of the present invention;

[0026] Figure 5 This diagram shows the structure of the anti-loosening component according to an embodiment of the present invention;

[0027] Figure 6 A schematic diagram of the structure of the locking hook according to an embodiment of the present invention is shown.

[0028] In the picture,

[0029] 1. Mounting base; 11. First folding plate; 12. Second folding plate; 13. Locking hole; 2. Handle; 21. Connecting arm; 22. Connecting rod; 3. Locking hook; 31. Hook body; 32. Folded hook; 33. Folded edge; 34. Rib; 4. First connecting shaft; 5. Second connecting shaft; 6. Anti-loosening component; 61. Hook plate; 62. Paddle plate; 63. Hook; 64. Rotating shaft; 65. Torsion spring. Detailed Implementation

[0030] The locking structure and packaging box provided by this utility model will be explained and described in detail below with reference to the accompanying drawings.

[0031] The locking structure provided by this utility model is used to lock the lid and body of a packaging box. It features an anti-loosening component, effectively preventing the locking structure from loosening and failing, thus making the packaging box more reliable. Furthermore, this utility model incorporates a rib structure on the hook lock to improve its structural strength, and the connecting arm of the handle is designed as a bent structure to extend the lever arm, making the locking operation more effortless. The following detailed description of this utility model is provided in conjunction with specific embodiments:

[0032] In some embodiments, the present invention provides a locking structure, such as... Figure 1 , Figure 2 , Figure 3 As shown, this locking mechanism is designed to be mounted on the box body and hook onto the edge of the lid to lock it securely to the box body when the lid is closed. The locking structure includes a mounting base 1, a handle 2, and a locking hook 3. The mounting base 1 is connected to the box body. The handle 2 is rotatably connected to the mounting base 1 via a first connecting shaft 4. The locking hook 3 is rotatably mounted on the handle 2 via a second connecting shaft 5. The first connecting shaft 4 and the second connecting shaft 5 are parallel. Rotating the handle 2 moves the locking hook 3 to achieve locking and unlocking actions. The mounting base 1 has a lock hole 13, and the handle 2 has an anti-loosening component 6. When the locking hook 3 is in the locked state, the anti-loosening component 6 is connected to the lock hole 13 to prevent the handle 2 from rotating, thus preventing loosening. To unlock, first separate the anti-loosening component 6 from the lock hole 13, and then move the handle 2.

[0033] In some embodiments, such as Figure 3As shown, the mounting base 1 is a flat plate structure with multiple through holes for connection to the housing via screws. Two parallel first folded plates 11 are formed on the first side of the mounting base 1, located at opposite edges and formed by bending. The two first folded plates 11 are perpendicular to the main body of the mounting base 1. A first connecting shaft 4 is connected to the two first folded plates 11. Optionally, two circular holes with collinear axes are formed on the two first folded plates 11, and the first connecting shaft 4 passes through these holes.

[0034] A second folding plate 12 is provided on the side of the mounting base 1 away from the first folding plate 11. The second folding plate 12 and the first folding plate 11 are bent toward the same side. A locking hole 13 is formed on the second folding plate 12. Optionally, the locking hole 13 is a rectangular hole. Optionally, both the first folding plate 11 and the second folding plate 12 are formed by bending, that is, the mounting base 1 is a one-piece molded structure.

[0035] In some embodiments, such as Figure 4 As shown, the handle 2 includes two parallel connecting arms 21. The first ends of the two connecting arms 21 are connected to the first connecting shaft 4, and the second ends of the two connecting arms 21 are connected by a connecting rod 22. The connecting rod 22 connects the two connecting arms 21 to form a whole, and the two connecting arms 21 can be rotated synchronously by operating the connecting rod 22. Optionally, the connecting arm 21 has a bent structure, with a certain bending angle at the middle position or at the middle position biased towards the second end, forming an obtuse angle between the two segments of the connecting arm 21. This can extend the lever arm and reduce the force required during operation. Furthermore, the bent structure prevents the connecting rod 22 from touching the mounting base 1, maintaining a certain gap between the connecting rod 22 and the mounting base 1, making operation more convenient.

[0036] A second connecting shaft 5 is provided on each of the two connecting arms 21 near the first end. The second connecting shaft 5 is connected to the locking hook 3. When the connecting arm 21 rotates around the first connecting shaft 4, the second connecting shaft 5 also rotates around the first connecting shaft 4, thereby driving the locking hook 3 to move.

[0037] In some embodiments, such as Figure 5 As shown, the anti-loosening component 6 includes an anti-loosening hook, which includes a paddle 62 and a hook piece 61. The first end of the paddle 62 is connected to the first end of the hook piece 61, and the second end of the hook piece 61 is provided with a hook 63 for hooking into the lock hole 13. Optionally, the hook piece 61 and the paddle 62 are arranged vertically, and the hook 63 faces the side where the paddle 62 is located. Further, the end of the hook 63 forms a guide slope. When the hook 63 is advanced into the second folding plate 12, the guide surface contacts the second folding plate 12 and, under the action of the guide surface, causes the hook 63 to slide to the upper side of the second folding plate 12 and then slide into the lock hole 13.

[0038] A pivot 64 is provided at the connection between the paddle 62 and the hook 61. The pivot 64 is perpendicular to the paddle 62 and the hook 61, and the pivot 64 is rotatably connected to the handle 2, that is, the pivot 64 is connected to the connecting rod 22, and the pivot 64 and the connecting rod 22 are coaxial. Optionally, the connecting rod 22 can be made into a hollow structure, with the pivot 64 passing through the connecting rod 22, and the hook 63 located at one end of the connecting rod 22.

[0039] In some embodiments, the anti-loosening component 6 further includes a torsion spring 65, which is fitted onto the rotating shaft 64. One end of the torsion spring 65 abuts against the handle 2, and the other end abuts against the anti-loosening hook. The torsion spring 65 provides elastic force to keep the hook 63 on the anti-loosening hook engaged with the lock hole 13. Optionally, one end of the torsion spring 65 abuts against the connecting arm 21, and the other end abuts against the lever 62. The torsion spring 65 provides elastic force to rotate the lever 62 toward the side away from the hook 61, or to make the lever 62 tend to rotate toward the side away from the hook 61. Under the force of the torsion spring 65, the hook 63 is engaged in the lock hole 13 and will not fall off. When unlocking is required, pushing the lever 62 causes the lever 62 to rotate the hook 61 in the opposite direction, which allows the hook 63 to slide out of the lock hole 13. Then, the connecting rod 22 can be pulled to rotate the handle 2 to unlock.

[0040] In some embodiments, such as Figure 6 As shown, the locking hook 3 includes a hook body 31, which is generally flat. Two parallel sides of the hook body 31 are provided with hooks 32 and flanges 33. For example, a hook 32 is provided on the first side, and a flange 33 is provided on the second side. The inner surface of the hook body 31 is flat. Both the hooks 32 and flanges 33 are bent towards the inner surface of the hook body 31. The hooks 32 are perpendicular to the inner surface of the hook body 31, and the flanges 33 form an obtuse angle with the inner surface. The flanges 33 are connected to the second connecting shaft 5. The hooks 32 are used to hook the edge of the lid, pressing the lid firmly onto the box. The flanges 33 provide clearance space for the hook body 31, preventing interference between the hook body 31 and the first connecting shaft 4. Optionally, the connection point between the flanges 33 and the hook body 31 is opposite to the position of the first connecting shaft 4. Optionally, multiple ribs 34 are formed on the outer surface of the hook body 31 to improve its structural strength and prevent excessive weight.

[0041] In some embodiments, a rubber pad is provided on the hook 32. The rubber pad has a certain elasticity and can generate a certain amount of compression when in contact with the lid during locking, thereby enabling it to more reliably tighten the lid. Optionally, a slot is provided on the hook 32, through which the rubber pad is engaged with the hook 32. The rubber pad can be replaced according to usage to ensure the reliability of the locking structure. Alternatively, rubber pads of different thicknesses can be installed, so that the locking structure has different locking forces.

[0042] In some embodiments, the present invention also provides a packaging box, including a box body and a box lid. The box body is provided with the above-mentioned locking structure. The mounting base 1 is fixedly disposed on the outer wall of the box body and located near the opening. When the box lid is closed on the box body, the locking hook 3 hooks the edge of the box lid.

[0043] The process of using the locking mechanism includes:

[0044] The lid is closed onto the box body. The handle 2 is moved to move the locking hook 3 and make the folding hook 32 lock onto the edge of the lid. Then the handle 2 is pressed to rotate the handle 2 toward the mounting base 1. When the distance between the second connecting shaft 5 and the mounting base 1 is less than the distance between the first connecting shaft 4 and the mounting base 1, the locking is completed. Optionally, at this time the connecting arm 21 contacts the mounting base 1.

[0045] As the handle 2 is turned, the anti-loosening hook gradually approaches the second folding plate 12 on the mounting base 1. When it contacts the second folding plate 12, the hook 63 slides along the second folding plate 12 and slides into the lock hole 13. At this time, the handle cannot be turned in the opposite direction, so that the lock hook 3 will not loosen.

[0046] To unlock, first press the anti-loosening hook lever 62, causing the hook 61 to rotate and the hook 63 to rotate out of the lock hole 13. Then, while keeping the lever 62 pressed, pull the connecting rod 22 of the handle 2 to rotate the handle 2 away from the mounting base 1. The locking hook 3 moves upward synchronously with the handle 2, causing the folding hook 32 to separate from the lid. Then, pull the folding hook 32 to open the lid.

[0047] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] In the description of this specification, the references to terms such as "this embodiment," "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. 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 a suitable manner in any at least one embodiment or example. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0050] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and simple improvements made on the substantive content of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A locking structure, characterized in that, The device includes a mounting base, a handle, and a locking hook. The handle is rotatably connected to the mounting base via a first connecting shaft, and the locking hook is rotatably mounted on the handle via a second connecting shaft. The first connecting shaft and the second connecting shaft are parallel to each other. The mounting base is provided with a lock hole, and the handle is provided with an anti-loosening component. When the lock hook is in the locked state, the anti-loosening component is connected to the lock hole to prevent the handle from rotating.

2. The locking structure according to claim 1, characterized in that, The anti-loosening component includes an anti-loosening hook, which comprises a lever and a hook plate. A first end of the lever is connected to a first end of the hook plate, and a hook is provided at a second end of the hook plate for engaging with a keyhole. A pivot is provided at the connection between the paddle and the hook, the pivot is perpendicular to the paddle and the hook, and the pivot is rotatably connected to the handle.

3. The locking structure according to claim 2, characterized in that, The anti-loosening component also includes a torsion spring, which is fitted on the rotating shaft. One end of the torsion spring abuts against the handle, and the other end abuts against the anti-loosening hook. The torsion spring provides elastic force to keep the hook on the anti-loosening hook engaged with the lock hole.

4. The locking structure according to claim 3, characterized in that, The mounting base is a flat plate structure, and two parallel first folded plates are formed on the first side of the mounting base. The first connecting shaft is connected to the two first folded plates. A second folding plate is provided on the side of the mounting base away from the first folding plate. The second folding plate and the first folding plate are bent toward the same side, and the lock hole is formed on the second folding plate.

5. The locking structure according to claim 4, characterized in that, The handle includes two parallel connecting arms. The first ends of the two connecting arms are connected to the first connecting shaft, and the second ends of the two connecting arms are connected by a connecting rod. The pivot on the anti-loosening hook is rotatably connected to one end of the connecting rod. The second connecting shaft is provided on both connecting arms near the first end.

6. The locking structure according to claim 5, characterized in that, The connecting arm has a bent structure.

7. The locking structure according to claim 5, characterized in that, The locking hook includes a hook body, a folded hook on a first side, and a folded plate on a second side. The inner surface of the hook body is flat. Both the folded hook and the folded plate are bent towards the inner surface of the hook body. The folded hook is perpendicular to the inner surface of the hook body, and the folded plate forms an obtuse angle with the inner surface. The folding plate is connected to the second connecting shaft.

8. The locking structure according to claim 7, characterized in that, A rubber pad is provided on the hook.

9. The locking structure according to claim 7, characterized in that, Multiple rib structures are formed on the outer surface of the hook.

10. A packaging box, comprising a box body and a box lid, characterized in that, The box body is provided with a locking structure as described in any one of claims 1-9, the mounting base is fixedly disposed on the outer wall of the box body, and when the box cover is closed on the box body, the locking hook hooks onto the edge of the box cover.

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