Cover lock structure of storage box

Abstract

The utility model provides a cover lock structure of a storage box, and belongs to the technical field of storage boxes. The technical problem that a locking piece of an existing storage box is prone to falling off when stressed is solved. The storage box comprises a box body and a box cover, a mounting groove is formed in the edge of the box cover, the cover lock structure comprises a lock piece used for locking the box cover and the box body, a connecting part is arranged on the lock piece, the cover lock structure is characterized by further comprising a horizontally-arranged strip-shaped guide plate, the guide plate is fixedly connected into the mounting groove, and the guide plate is connected with the mounting groove. The inner side face of the guide plate is opposite to the bottom face of the mounting groove, the connecting part is horizontally arranged to be in a plate shape, the connecting part is inserted between the edge of the guide plate and the inner side wall of the mounting groove and can horizontally slide along the guide plate, and the side face, facing the side where the guide plate is located, of the connecting part is provided with a limiting part. And the limiting part is positioned on the inner side of the guide plate. According to the utility model, the locking piece can be effectively prevented from falling off due to stress.

Description

Technical Field

[0001] This utility model belongs to the field of storage box technology and relates to a lid lock structure for a storage box. Background Technology

[0002] Storage boxes are common items in homes, restaurants, and offices. Most modern storage boxes are made of wood or plastic, which ensures structural strength while achieving lightweight design. The lid and body of the storage box are usually connected by hinges, and the other side of the lid is locked to the body to protect the stored items.

[0003] Patent CN221025242U discloses a storage box with a door lock, including a cover for closing the top of the storage box and a main body for closing the middle and bottom of the storage box. The cover is rotatably connected to the main body, and the main body supports the cover. The cover has an open state and a closed state relative to the main body. The storage box also includes a lock, which is installed on the cover. The lock has a locked position and an unlocked position, and the lock can slide or rotate between the locked position and the unlocked position. The sliding groove on the lock cooperates with the sliding rail on the inner wall of the mounting groove to limit the lock's movement.

[0004] The above-mentioned door lock structure can achieve locking and unlocking operations through horizontal sliding, but there are still some shortcomings: the lock is limited by the sliding groove at the top and the sliding rail on the inner wall of the mounting groove, the bottom of the lock only abuts against the inner wall of the mounting groove, and the lock itself is a hollow structure. When it is pushed outward by force, the lock is easily deformed and deflected, causing the whole lock to come out of the mounting groove. Summary of the Invention

[0005] This utility model addresses the aforementioned problems in existing technologies by providing a lock structure for a storage box. The technical problem this utility model aims to solve is that the locks of existing storage boxes are prone to falling off under stress.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A lock and latch structure for a storage box, the storage box including a box body and a box lid, the edge of the box lid having a mounting groove, the lock and latch structure including a locking member for locking the box lid and the box body, the locking member having a connecting part, characterized in that the lock and latch structure further includes a horizontally arranged strip-shaped guide plate, the guide plate being fixedly connected to the mounting groove, and the inner side of the guide plate being opposite to the bottom surface of the mounting groove, the connecting part being horizontally arranged in a plate shape, the connecting part being inserted between the edge of the guide plate and the inner sidewall of the mounting groove and being able to slide horizontally along the guide plate, the side of the connecting part facing the guide plate having a limiting part, the limiting part being located inside the guide plate.

[0008] The enclosure provides storage space for items. The lid, in conjunction with the enclosure, seals the enclosure, ensuring effective storage and protection. The locking mechanism, which uses horizontal sliding to lock the lid and enclosure, is existing technology. A mounting groove on the edge of the lid facilitates the placement and connection of the lock. A connecting part on the lock extends out of the mounting groove to connect with the lid. A strip-shaped guide plate is horizontally fixed within the mounting groove, and a horizontally arranged, plate-like connecting part is inserted between the edge of the guide plate and the inner wall of the mounting groove, allowing the lock to slide along the guide plate. The sliding mechanism enables locking and unlocking actions. Simultaneously, a limiting part on the side of the connecting part facing the guide plate abuts against the inner side of the guide plate. When the lock is subjected to an outward force, the connecting part, constrained by the edge of the guide plate and the inner wall of the mounting groove on both sides, ensures smooth sliding while minimizing excessive displacement deformation in either direction under force. This ensures the stability of the limiting part on the connecting part, which is then stably blocked by the inner side of the guide plate, effectively preventing the lock from coming loose under force.

[0009] In the aforementioned lock and lid structure of the storage box, there are two connecting parts arranged laterally at intervals along the guide plate, which is positioned laterally between the two connecting parts. This increases the number of connection points for the lock, making the lock connection more stable and preventing the lock from coming loose under force. It also ensures that the lock maintains a fixed angle during sliding, avoiding the risk of it coming loose due to tilting or swaying under force.

[0010] In the aforementioned lock and lid structure of the storage box, the limiting parts on both connecting parts protrude towards the side where the guide plate is located. In this way, both limiting parts rely on the guide plate for limiting and preventing detachment, eliminating the need for a slot on the inner wall of the mounting groove, thus simplifying the structure. Furthermore, the symmetrical arrangement of the two limiting parts ensures more even force distribution on the guide plate when the lock is pulled, guaranteeing the anti-detachment effect.

[0011] In the aforementioned lock and lid structure of the storage box, the limiting part is wedge-shaped with its pointed end facing the bottom surface of the mounting groove. This ensures that the larger end of the limiting part provides stable positioning, while also allowing the limiting part to be guided by the wedge-shaped slope when inserted into the space between the guide plate edge and the inner wall of the mounting groove, making installation easier.

[0012] In the aforementioned lock and latch structure of the storage box, the locking element is abutted against the outer side of the guide plate. This helps to reduce the relative movement space between the locking element and the guide plate during sliding, and avoids the risk of the locking part coming off due to wear and tear caused by long-term movement and impact.

[0013] In the aforementioned lock and lid structure of the storage box, the horizontal arrangement of the connecting part in the shape of a plate helps to increase the contact length between the connecting part and the edge of the guide plate, thereby making the connecting part more stable when it moves relative to the edge of the guide plate.

[0014] In the aforementioned lock and lid structure of the storage box, a boss is integrally connected to the bottom surface of the mounting groove, and the guide plate is fixedly connected to the boss, with a gap between the edge of the inner side of the guide plate and the bottom surface of the mounting groove. This allows the guide plate to be fixedly connected while facilitating the formation of a space for accommodating and limiting the guide plate between its edge and the bottom surface of the mounting groove.

[0015] In the aforementioned lock and lid structure of the storage box, the inner side of the guide plate has an annular positioning flange, which is fitted onto the outer periphery of the protrusion. This positioning flange and the protrusion further form a positioning connection, effectively preventing the guide plate from loosening under force and ensuring that the lock does not come loose under stress.

[0016] In the aforementioned lock and latch structure of the storage box, the edge of the outer side of the guide plate is chamfered. This chamfered edge of the outer side of the guide plate guides the limiting part when it is snapped into place behind the guide plate, making the assembly process easier and smoother.

[0017] In the aforementioned lock structure of the storage box, the lock element also has several strip-shaped ribs connecting the two connecting parts. These ribs are spaced horizontally and abut against the outer surface of the guide plate. This contact between the ribs and the outer surface of the guide plate helps reduce frictional resistance during the sliding process of the lock element.

[0018] Compared with the prior art, the advantages of this utility model are as follows:

[0019] In the lock mechanism of this storage box, the connecting part is not easily deformed when the lock body is subjected to dragging force, and the lock body is more evenly and stably stressed, making it difficult to come out of the mounting slot. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of this embodiment.

[0021] Figure 2 This is a front view structural diagram of this embodiment.

[0022] Figure 3 yes Figure 2 A schematic diagram of the AA cross section.

[0023] Figure 4 yes Figure 3 Enlarged view of part B in the image.

[0024] Figure 5 This is a partial three-dimensional exploded view of the structure in this embodiment.

[0025] Figure 6 This is a three-dimensional exploded view of a partial structure from another angle in this embodiment.

[0026] In the diagram, 1. Box body;

[0027] 2. Box cover; 21. Mounting groove; 22. Boss;

[0028] 3. Locking component; 31. Connecting part; 32. Limiting part; 33. Rib part; 34. Pressing part;

[0029] 4. Guide plate; 41. Positioning stop. Detailed Implementation

[0030] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0031] like Figure 1-6 As shown, in the lid lock structure of this storage box, the storage box includes a box body 1 and a lid 2, which are injection molded. The edge of the lid 2 has a forward-facing mounting groove 21. The lid lock structure includes a locking member 3 for locking the lid 2 and the box body 1. The locking member 3 is in the shape of a vertical plate. A pressing part 34 is integrally formed on the locking member 3. The pressing part 34 is an existing structure. The pressing part 34 can slide with the locking member 3 and act on the box body 1 to vertically lock the lid 2 and the box body 1. The lid lock structure also includes a horizontally arranged strip-shaped guide plate 4. The guide plate 4 is fixed in the mounting groove 21, and the inner side of the guide plate 4 is opposite to the bottom surface of the mounting groove 21. The locking member 3 has an integrally formed connecting part 31 that is inserted between the edge of the guide plate 4 and the inner side wall of the mounting groove 21 and can slide horizontally along the guide plate 4. The connecting part 31 has a limiting part 32, which is located inside the guide plate 4. Furthermore, there are two connecting portions 31 arranged laterally at intervals along the guide plate 4, which is laterally positioned between the two connecting portions 31. The limiting portions 32 on both connecting portions 31 protrude towards the side where the guide plate 4 is located. The limiting portions 32 are wedge-shaped with their tips pointing towards the bottom surface of the mounting groove 21. The locking member 3 abuts against the outer surface of the guide plate 4. Preferably, the connecting portions 31 are horizontally arranged in a plate shape.

[0032] like Figure 4-6 As shown, a boss 22 is integrally connected to the bottom surface of the mounting groove 21. The guide plate 4 is fixed to the boss 22, and there is a gap between the edge of the inner side of the guide plate 4 and the bottom surface of the mounting groove 21. The inner side of the guide plate 4 has an annular positioning flange 41, which is fitted onto the outer periphery of the boss 22. The edge of the outer side of the guide plate 4 is chamfered. The locking member 3 also has three vertical ribs 33 connecting the two connecting parts 31. The three ribs 33 are arranged horizontally at intervals and abut against the outer side of the guide plate 4.

[0033] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A lid lock structure for a storage box, the storage box comprising a box body (1) and a box lid (2), the box lid (2) having a mounting groove (21) at its edge, the lid lock structure comprising a locking member (3) for locking the box lid (2) and the box body (1), the locking member (3) having a connecting portion (31), characterized in that, The cover lock structure also includes a horizontally arranged strip-shaped guide plate (4), which is fixedly connected to the mounting groove (21), and the inner side of the guide plate (4) is opposite to the bottom surface of the mounting groove (21). The connecting part (31) is horizontally arranged in the shape of a plate. The connecting part (31) is inserted between the edge of the guide plate (4) and the inner side wall of the mounting groove (21) and can slide horizontally along the guide plate (4). The side of the connecting part (31) facing the guide plate (4) has a limiting part (32), which is located inside the guide plate (4).

2. The lid lock structure of the storage box according to claim 1, characterized in that, The connecting part (31) has two locations and is arranged at a lateral interval along the guide plate (4), which is positioned laterally between the two connecting parts (31).

3. The lid lock structure of the storage box according to claim 1 or 2, characterized in that, The limiting part (32) is wedge-shaped with its tip facing the bottom surface of the mounting groove (21).

4. The lid lock structure of the storage box according to claim 1 or 2, characterized in that, The lock (3) is in contact with the outer side of the guide plate (4).

5. The lid lock structure of the storage box according to claim 1 or 2, characterized in that, The bottom surface of the mounting groove (21) is integrally connected with a boss (22), and the guide plate (4) is fixedly connected to the boss (22), with a gap between the edge of the inner side of the guide plate (4) and the bottom surface of the mounting groove (21).

6. The lid lock structure of the storage box according to claim 5, characterized in that, The inner side of the guide plate (4) has an annular positioning flange (41), which is sleeved on the outer periphery of the boss (22).

7. The lid lock structure of the storage box according to claim 1 or 2, characterized in that, The outer edge of the guide plate (4) is chamfered.

8. The lid lock structure of the storage box according to claim 4, characterized in that, The lock (3) also has a number of strip-shaped ribs (33) connected between the two connecting parts (31), and the number of ribs (33) are arranged at intervals in the horizontal direction and abut against the outer side of the guide plate (4).

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