A plastic storage box

Abstract

This utility model belongs to the field of plastic storage box technology, and in particular to a plastic storage box, including a box body, a partition, a flip cover, a cover buckle, a storage drawer, and a locking mechanism; the partition is fixed inside the box body, dividing the internal space of the box body into a first storage space and a second storage space; when the flip cover is closed, it is locked by the cover buckle; when the storage drawer is fully pushed into the second storage space, it is locked by the locking mechanism, and the end face of the storage drawer has a force-applying groove; through the combination design of "top cover + bottom storage drawer", the storage drawer allows items at the bottom of the deep cavity to be directly taken out from the side without tilting the box or reaching in; the interior of the box body is divided into two independent storage spaces by the partition, and together with the storage drawer, it can realize the classified storage of different types and sizes of items, avoid the chaotic stacking of items, and greatly improve the storage organization and space utilization.

Description

Technical Field

[0001] This utility model belongs to the technical field of plastic storage boxes, and specifically relates to a plastic storage box. Background Technology

[0002] Plastic storage boxes are widely used in various scenarios such as daily life storage, office document organization, and industrial parts storage due to their advantages such as low cost, light weight, corrosion resistance, and waterproof and moisture-proof properties.

[0003] However, existing plastic storage boxes have significant shortcomings in practical use: for storage boxes with deep cavity structures, items stored at the bottom of the box need to be reached out by the user or even the box needs to be tilted to retrieve them, which is inconvenient to operate, has low retrieval efficiency, and is prone to causing items to scatter or be damaged.

[0004] To address the aforementioned problems, this utility model proposes a plastic storage box. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides a plastic storage box that is convenient to use and easy to retrieve items.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a plastic storage box, including a box body, wherein the box body is a cuboid structure integrally injection molded from polypropylene plastic, and also includes a partition, a flip cover, a cover buckle, a storage drawer and a locking mechanism.

[0007] The partition is fixed inside the box body, dividing the internal space of the box body into a first storage space and a second storage space;

[0008] The first storage space has an opening at the top, and the flip cover is hinged to the opening end of the first storage space and locked by a cover buckle when the flip cover is closed.

[0009] The storage drawer is slidably installed in the second storage space. A retrieval port for removing and placing the storage drawer is provided on one side of the main body of the box. When the storage drawer is fully pushed into the second storage space, it is locked by a locking mechanism. A force-applying groove is provided on the end face of the storage drawer.

[0010] As a preferred embodiment of this utility model, the cover buckle includes a hook, a buckle seat, an operating handle, a mounting shaft, and a hanging ring;

[0011] The hook is fixed to the free end face of the flap;

[0012] The buckle seat is fixed to the top of the outer side wall of the box body;

[0013] The operating handle is rotatably mounted on the buckle seat via a mounting shaft;

[0014] The hanging ring is rotatably mounted on the operating handle at a position offset from the mounting axis and is adapted to the hook.

[0015] As a preferred embodiment of this utility model, the cover buckles are symmetrically distributed in two sets.

[0016] As a preferred technical solution of this utility model, the locking mechanism includes a locking block, a mounting plate, a wedge block and a return spring;

[0017] The locking block is fixed to the end face of the storage drawer, and a locking groove is provided on the locking block;

[0018] The mounting plate is slidably connected to the housing body;

[0019] The wedge block is fixed to the bottom surface of the mounting plate and is adapted to the locking groove;

[0020] The reset spring provides the elastic force for the mounting plate to move downwards, causing the wedge block to engage in the locking groove.

[0021] As a preferred embodiment of this utility model, the locking mechanism further includes a limiting plate, a guide rod, and a limiting disc;

[0022] The limiting plate is fixed to the outer side wall of the box body;

[0023] The two guide rods are symmetrically fixed to the top surface of the mounting plate and pass through the limiting plate. The reset spring is sleeved on the guide rod and is located between the limiting plate and the mounting plate.

[0024] The limiting plate is fixed to the top of the guide rod.

[0025] As a preferred embodiment of this utility model, the locking mechanism further includes a T-shaped pull rod;

[0026] The vertical part of the T-shaped tie rod passes through the limiting plate and is rigidly fixed to the mounting plate.

[0027] As a preferred technical solution of this utility model, it also includes a handle and a flexible anti-slip sleeve;

[0028] The two handles are symmetrically hinged to both sides of the box body, and the flexible anti-slip sleeve is fitted onto the handles.

[0029] As a preferred embodiment of this utility model, the top surface of the flip cover is provided with a positioning groove, and the bottom surface of the box body is fixed with a positioning boss that matches the positioning groove.

[0030] Compared with the prior art, the beneficial effects of this utility model are:

[0031] 1. Through the combination design of "top cover + bottom storage drawer", it breaks through the limitation of traditional storage boxes that rely solely on the top opening to retrieve items. The storage drawer allows items at the bottom of the deep cavity to be directly retrieved from the side without tilting the box or reaching in. This effectively solves the technical problem of retrieving items from deep cavity storage boxes. Even when stacked, items at the bottom can be retrieved.

[0032] 2. The interior of the cabinet is divided into two independent storage spaces by a partition. Combined with storage drawers, it can achieve classified storage of items of different types and sizes, avoids items being piled up in a mess, and greatly improves storage organization and space utilization.

[0033] Other additional advantages and beneficial effects of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this invention. Attached Figure Description

[0034] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0035] Figure 1 This is a schematic diagram of the structure of this utility model;

[0036] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the cover buckle structure;

[0037] Figure 3 This utility model Figure 1 A magnified schematic diagram of the locking mechanism in the diagram;

[0038] Figure 4 This is a schematic diagram of the stacked structure of the box body in this utility model.

[0039] In the diagram: 1. Box body; 11. Partition; 12. First storage space; 13. Second storage space; 14. Access opening; 2. Flip-top; 21. Positioning groove; 3. Cover buckle; 31. Hook; 32. Buckle seat; 33. Operating handle; 34. Mounting shaft; 35. Hanging ring; 4. Storage drawer; 41. Force groove; 5. Locking mechanism; 51. Locking block; 511. Locking groove; 52. Limiting plate; 53. Mounting plate; 54. Wedge block; 55. Return spring; 56. Guide rod; 57. Limiting plate; 58. T-shaped pull rod; 6. Handle; 7. Flexible anti-slip sleeve; 8. Positioning boss. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] Please see Figures 1-4 The present invention provides the following technical solution: a plastic storage box, including a box body 1, the box body 1 being a rectangular structure integrally injection molded from polypropylene plastic, and also including a partition 11, a flip cover 2, a cover buckle 3, a storage drawer 4 and a locking mechanism 5.

[0042] Furthermore, by Figure 1 As shown, in this embodiment, the partition 11 is fixed inside the box body 1, dividing the internal space of the box body 1 into a first storage space 12 and a second storage space 13; the top of the first storage space 12 is open, and the flip cover 2 is hinged to the open end of the first storage space 12, and is locked by the cover buckle 3 when the flip cover 2 is closed; the storage drawer 4 is slidably installed in the second storage space 13, and a retrieval opening 14 for disassembling and assembling the storage drawer 4 is provided on one side of the box body 1, and is locked by the locking mechanism 5 when the storage drawer 4 is fully pushed into the second storage space 13. With the force-applying groove 41 provided, when using the above solution, for the first storage space 12: the first storage space 12 is formed by the partition 11 and the box body 1. The top opening structure is suitable for items that are "not frequently used but need to be dustproof". When it is necessary to store or retrieve items, external force is applied to the unlocking direction of the cover buckle 3 to make the cover buckle 3 disengage from the latching state between the flip cover 2 and the box body 1 and unlock it; then, with the hinge point between the flip cover 2 and the box body 1 as the axis, the flip cover 2 is flipped upward until the top opening of the first storage space 12 is fully open. At this time, items can be directly put in or taken out.

[0043] After the items are stored and retrieved, flip the cover 2 downwards until it fits the edge of the top opening of the box body 1, and then re-lock the cover 2 and the box body 1 with the cover buckle 3 to make the first storage space 12 closed, effectively preventing dust from entering, and preventing the internal items from falling due to the tilting of the box or handling.

[0044] The second storage space 13 is formed by the partition 11, the main body 1, and the storage drawer 4. The side access port 14 and the sliding structure of the storage drawer 4 are adapted to items that are frequently accessed and need to be retrieved quickly.

[0045] When it is necessary to store or retrieve items, first operate the locking mechanism 5 to unlock and release the axial limit on the storage drawer 4; then put your hand into the force groove 41 on the end face of the storage drawer 4 and apply a pulling force away from the body 1. At this time, the storage drawer 4 will slide out steadily along the inner wall of the second storage space 13 until the storage drawer 4 is completely exposed outside the retrieval opening 14, and you can directly store or retrieve the items inside.

[0046] After the items are stored or retrieved, push the storage drawer 4 into the body 1 of the box to reset the storage drawer 4. When the storage drawer 4 is fully pushed into the second storage space 13 (i.e., the end face of the storage drawer 4 is flush with the side wall of the body 1 of the box), the locking mechanism 5 locks again, restricting the storage drawer 4 from moving along the axis and preventing the storage drawer 4 from accidentally sliding out when the body 1 of the box is moved or shaken.

[0047] Optionally, by Figure 1 and Figure 2 As shown, in this embodiment, the cover latch 3 includes a hook 31, a latch seat 32, an operating handle 33, a mounting shaft 34, and a hanging ring 35; the hook 31 is fixed to the free end face of the flip cover 2; the latch seat 32 is fixed to the top of the outer side wall of the box body 1; the operating handle 33 is rotatably mounted on the latch seat 32 via the mounting shaft 34; the hanging ring 35 is rotatably mounted on the operating handle 33 at a position offset from the mounting shaft 34 and is adapted to the hook 31. With the above solution, when it is necessary to unlock the flip cover 2 to open the first storage space, At 12 o'clock, the operator applies an external force away from the main body 1 to the operating handle 33. The operating handle 33 rotates around the buckle seat 32 with the mounting shaft 34 as the fulcrum (forming a lever transmission structure). Since the hanging ring 35 is rotated and installed at an eccentric position off the mounting shaft 34 of the operating handle 33, the rotation of the operating handle 33 will drive the hanging ring 35 to move synchronously in an arc trajectory, so that the hanging ring 35 and the hook 31 fixed to the free end of the flip cover 2 gradually disengage from the locking state. At this time, the lock of the flip cover 2 is released and it can be flipped up and opened around the hinge point.

[0048] When it is necessary to lock the flip cover 2 to close the first storage space 12, flip the flip cover 2 downwards until it fits against the edge of the top opening of the box body 1, so that the hook 31 is aligned with the hanging ring 35; then, pull the operating handle 33 in the opposite direction towards the box body 1, and drive the hanging ring 35 to make an arc movement with the mounting shaft 34 as the fulcrum. The hanging ring 35 is put into the locking groove of the hook 31 under the action of the operating handle 33 until the operating handle 33 rotates to the limit position that fits against the outer wall of the box body 1; at this time, the hanging ring 35 and the hook 31 form a stable locking engagement, and the operating handle 33 maintains its current posture through the engagement of the mounting shaft 34 and the buckle seat 32. Utilizing the self-locking characteristic of the lever structure (after the external force disappears, the pulling force of the flip cover 2 on the hook 31 is transmitted to the operating handle 33 through the hanging ring 35, so that the operating handle 33 presses against the buckle seat 32 and cannot rotate on its own), the flip cover 2 is reliably locked to prevent the flip cover 2 from being opened accidentally.

[0049] The hanging ring 35 adopts a rotating installation method, which can adapt to the position and angle of the hook 31 during the locking and unlocking process, compensate for assembly errors or slight alignment deviations when the flip cover 2 is closed, and ensure smooth locking.

[0050] Preferably, by Figure 1 and Figure 2 As shown in this embodiment, there are two sets of symmetrically distributed cover buckles 3. With the above solution, when in use, the two sets of cover buckles 3 are symmetrically distributed between the free end of the flip cover 2 and the outer wall of the box body 1. This ensures that when the flip cover 2 is closed and locked, the locking force is evenly distributed along the width direction of the flip cover 2. This avoids problems such as tilting of the flip cover 2 and loosening of the latch caused by concentrated force on one side of the cover buckle 3. It ensures that the flip cover 2 and the top opening edge of the box body 1 are fully fitted, significantly improving the sealing performance of the first storage space 12, effectively blocking the intrusion of dust and moisture, and preventing the internal items from shifting due to uneven force.

[0051] In addition, the dual-lid latch 3 working together to lock the structure provides redundant protection. Compared with the single-lid latch 3 design, it can avoid the risk of the flip cover 2 opening accidentally when a single lid latch 3 is damaged or fails. Especially when the box body 1 is being transported, stacked or subjected to external force collisions, the two sets of lid latches 3 share the locking load, which greatly improves the impact resistance and long-term stability of the flip cover 2 locking and extends the overall service life of the product.

[0052] Optionally, by Figure 1 and Figure 3As shown, in this embodiment, the locking mechanism 5 includes a locking block 51, a mounting plate 53, a wedge block 54, and a return spring 55. The locking block 51 is fixed to the end face of the storage drawer 4, and a locking groove 511 is provided on the locking block 51. The mounting plate 53 is slidably connected to the box body 1. The wedge block 54 is fixed to the bottom surface of the mounting plate 53 and is adapted to the locking groove 511. The return spring 55 is used to provide the elastic force for the mounting plate 53 to move downward so that the wedge block 54 is embedded in the locking groove 511. With the above solution, when the storage drawer 4 is fully pushed into the second storage space 13 of the box body 1, the locking block 51 fixed to the end face of the storage drawer 4 moves synchronously to the preset position with the storage drawer 4. At this time, the locking groove 511 on the locking block 51 and the wedge block 54 on the bottom surface of the mounting plate 53 are precisely aligned.

[0053] Since the reset spring 55 always applies downward elastic pressure to the mounting plate 53, and the mounting plate 53 is slidably connected to the housing body 1, the elastic force of the reset spring 55 will drive the mounting plate 53 to move downward in the sliding direction, thereby driving the wedge block 54 fixed on its bottom surface to move downward synchronously until the wedge block 54 is completely embedded in the locking groove 511 of the locking block 51.

[0054] The wedge block 54 and the locking groove 511 form an axial limit: if the storage drawer 4 tends to slide outward, the locking block 51 will exert a pushing force on the wedge block 54 in the sliding direction of the storage drawer 4. However, the side wall of the wedge block 54 is tightly fitted with the inner wall of the locking groove 511, and the mounting plate 53 is pressed by the return spring 55 and cannot move upward. The wedge block 54 cannot disengage from the locking groove 511, thereby restricting the axial movement of the storage drawer 4 and achieving reliable locking of the storage drawer 4, preventing the storage drawer 4 from accidentally sliding out when the box body 1 is moved or shaken.

[0055] When it is necessary to open the storage drawer 4, the operator needs to apply an upward force to the mounting plate 53, which must overcome the downward elastic pressure of the return spring 55.

[0056] Under the action of an upward external force, the mounting plate 53 slides upward along the body 1 of the box, and simultaneously drives the wedge block 54 on the bottom surface to move upward, so that the wedge block 54 gradually disengages from the locking groove 511 of the locking block 51 until the wedge block 54 completely exits the locking groove 511, thereby releasing the axial limit on the locking block 51 (and the storage drawer 4).

[0057] At this time, the sliding constraint of the storage drawer 4 is released, and the operator can pull the storage drawer 4 through the force groove 41 on the end face of the storage drawer 4, so that the storage drawer 4 slides outward along the second storage space 13 to complete the unlocking operation.

[0058] Optionally, by Figure 1 and Figure 3As shown, in this embodiment, the locking mechanism 5 further includes a limiting plate 52, a guide rod 56, and a limiting disc 57; the limiting plate 52 is fixed to the outer wall of the box body 1; two guide rods 56 are symmetrically fixed to the top surface of the mounting plate 53 and pass through the limiting plate 52; the return spring 55 is sleeved on the guide rod 56 and is located between the limiting plate 52 and the mounting plate 53; the limiting disc 57 is fixed to the top of the guide rod 56. With the above scheme, when the storage drawer 4 is fully pushed into the second storage space 13, the locking groove 511 of the locking block 51 aligns with the wedge block 54, and the return spring 55 releases elastic potential energy between the limiting plate 52 and the mounting plate 53, applying a downward pushing force to the mounting plate 53.

[0059] The guide rods 56, which are symmetrically fixed to the top surface of the mounting plate 53, slide axially downward along the through holes (round holes that are compatible with the guide rods 56) on the limiting plate 52. Because the two sets of guide rods 56 are symmetrically distributed, the mounting plate 53 can be restricted from shifting left or right or tilting during the up and down movement, ensuring that the wedge block 54 on the bottom surface of the mounting plate 53 can be accurately aligned with the locking groove 511, and avoiding the wedge block 54 from being unable to be inserted or having insufficient insertion depth due to the tilt of the mounting plate 53.

[0060] The limiting plate 52, through its rigid structure fixed to the housing body 1, provides an upper support point for the return spring 55 sleeved on the guide rod 56, so that the return spring 55 is always within the limited space of "lower end face of the limiting plate 52 - upper end face of the mounting plate 53", preventing the return spring 55 from bending laterally or misaligning during compression and extension, ensuring that the elastic force of the return spring 55 is stably transmitted along the axial direction of the guide rod 56 (i.e., the direction of movement of the mounting plate 53), and avoiding insufficient pressure of the wedge block 54 embedded in the locking groove 511 due to the dispersion of elastic force.

[0061] Under the thrust of the return spring 55 and the guidance of the guide rod 56, the mounting plate 53 moves smoothly downward until the wedge block 54 is fully embedded in the locking groove 511.

[0062] Preferably, by Figure 1 and Figure 3 As shown, in this embodiment, the locking mechanism 5 also includes a T-shaped pull rod 58; the vertical part of the T-shaped pull rod 58 passes through the limiting plate 52 and is rigidly fixed to the mounting plate 53. With the above solution, when it is necessary to unlock the storage drawer 4, the user applies an upward external force to the horizontal head of the T-shaped pull rod 58. The external force is directly transmitted to the mounting plate 53 through the vertical part, avoiding force loss caused by excessive force transmission path or gaps between components, and ensuring that the external force applied by the user can efficiently overcome the elastic pressure of the return spring 55.

[0063] When the mounting plate 53 moves to its maximum stroke (the wedge block 54 is completely disengaged from the locking groove 511), the vertical part of the T-shaped tie rod 58 and the mounting plate 53 stop moving, and the distance between its horizontal head and the limiting plate 52 reaches its maximum value.

[0064] Preferably, by Figure 1 and Figure 3 As shown, this embodiment also includes handles 6 and flexible anti-slip sleeves 7; the two handles 6 are symmetrically hinged to both sides of the box body 1, and the flexible anti-slip sleeves 7 are fitted onto the handles 6. With the above solution, when in use, the two handles 6 are symmetrically hinged to both sides of the box body 1, so that the force points on both sides of the box body 1 are symmetrically distributed during handling, which can effectively balance the weight of the box body 1 and the contents inside, avoid the box body 1 from tilting or shaking due to force on one side, and thus prevent the dustproof items in the first storage space 12 from tipping over and the items in the second storage space 13 from shifting or being damaged by collision.

[0065] The flexible anti-slip sleeve 7 is fitted onto the handle 6. Its flexible material (such as silicone, TPR, etc.) can form a micro-protrusion texture or a rough contact surface, which can significantly increase the friction between the hand and the handle 6. Even if the hand is sweaty, dusty, or the handling environment is humid, it can prevent the hand from slipping on the handle 6 and prevent the case body 1 from falling accidentally.

[0066] Preferably, by Figure 1 and Figure 4 As shown in this embodiment, the top surface of the flip cover 2 is provided with a positioning groove 21, and the bottom surface of the box body 1 is fixed with a positioning boss 8 that matches the positioning groove 21. After adopting the above solution, when multiple boxes 1 need to be stacked, first ensure that the flip cover 2 of the lower box body 1 is in a completely closed state: through the locking action of the cover buckle 3, the flip cover 2 fits tightly against the top opening of the box body 1, so that the top surface of the flip cover 2 remains flat (without protrusions or depressions). At this time, the positioning groove 21 opened on the top surface of the flip cover 2 forms a clear "alignment reference groove". The outline (such as rectangle or circle) and size of the positioning groove 21 are clear, providing a precise embedding guide for the positioning boss 8 of the upper box body 1.

[0067] When the operator moves the upper box body 1 to directly above the lower box body 1, visual guidance is used to align the positioning protrusion 8 on the bottom surface of the upper box body 1 with the positioning groove 21 on the top surface of the lower box body flip cover 2. When the upper box body 1 is lowered to the top surface of the lower box body 1, the positioning protrusion 8 is fully embedded in the positioning groove 21, forming a two-way mechanical limit. The side wall of the positioning protrusion 8 is tightly fitted with the inner wall of the positioning groove 21, restricting the upper box body 1 from sliding left and right, or forward and backward, along the top surface of the lower box body 1. At this time, the positioning boss 8 is integrally formed with the box body 1, which has sufficient structural strength. It can evenly transfer the weight of the upper box body 1 (including the weight of the internal storage) to the flip cover 2 of the lower box body 1. Since the flip cover 2 is in the closed and locked state (the cover buckle 3 provides rigid support), the top surface of the flip cover 2 can serve as a stable "bearing surface". With the contact area of ​​the positioning boss 8 and the positioning groove 21, it can disperse the local pressure of the upper weight on the lower box body 1 and prevent the top surface of the lower box body 1 from deforming due to excessive local stress.

[0068] Components not described in detail in this article are existing technologies.

[0069] The working principle and usage process of this utility model: When using the plastic storage box of this utility model, for the first storage space 12: the first storage space 12 is formed by the partition 11 and the box body 1. The top opening structure is suitable for items that are not frequently used but need to be dustproof. When it is necessary to store or retrieve items, an external force is applied to the unlocking direction of the cover buckle 3, so that the cover buckle 3 is disengaged from the latching state between the flip cover 2 and the box body 1, and the lock is released; then, with the hinge point between the flip cover 2 and the box body 1 as the axis, the flip cover 2 is flipped upward until the top opening of the first storage space 12 is completely open. At this time, items can be directly put in or taken out.

[0070] After the items are stored and retrieved, flip the cover 2 downwards until it fits the edge of the top opening of the box body 1, and then re-lock the cover 2 and the box body 1 with the cover buckle 3 to make the first storage space 12 closed, effectively preventing dust from entering, and preventing the internal items from falling due to the tilting of the box or handling.

[0071] For the second storage space 13: it is formed by the partition 11, the main body 1 and the storage drawer 4. The side access port 14 and the sliding structure of the storage drawer 4 are adapted to items that are frequently accessed and need to be quickly retrieved.

[0072] When it is necessary to store or retrieve items, first operate the locking mechanism 5 to unlock and release the axial limit on the storage drawer 4; then put your hand into the force groove 41 on the end face of the storage drawer 4 and apply a pulling force away from the body 1. At this time, the storage drawer 4 will slide out steadily along the inner wall of the second storage space 13 until the storage drawer 4 is completely exposed to the outside of the access opening 14, and you can directly store or retrieve the items inside.

[0073] After the items are stored and retrieved, push the storage drawer 4 into the body 1 of the box to reset the storage drawer 4. When the storage drawer 4 is fully pushed into the second storage space 13 (i.e. the end face of the storage drawer 4 is flush with the side wall of the body 1 of the box), the locking mechanism 5 locks again, restricting the storage drawer 4 from moving along the axis and preventing the storage drawer 4 from accidentally sliding out when the body 1 of the box is moved or shaken.

[0074] When multiple layers of box bodies 1 need to be stacked, first ensure that the flip cover 2 of the lower box body 1 is completely closed. When the operator moves the upper box body 1 to directly above the lower box body 1, guide it visually so that the positioning protrusion 8 on the bottom surface of the upper box body 1 is aligned with the positioning groove 21 on the top surface of the lower box body flip cover 2. When the upper box body 1 is lowered to the top surface of the lower box body 1, the positioning protrusion 8 is fully embedded in the positioning groove 21, forming a two-way mechanical limit to ensure the stability after stacking.

[0075] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A plastic storage box, comprising a box body (1), wherein the box body (1) is a cuboid structure integrally injection molded from polypropylene plastic, characterized in that, It also includes a partition (11), a flip cover (2), a cover latch (3), a storage drawer (4), and a locking mechanism (5); The partition (11) is fixed inside the box body (1) to divide the internal space of the box body (1) into a first storage space (12) and a second storage space (13); The top of the first storage space (12) is open, and the flip cover (2) is hinged to the opening end of the first storage space (12), and is locked by the cover buckle (3) when the flip cover (2) is closed. The storage drawer (4) is slidably installed in the second storage space (13). A retrieval opening (14) for removing and installing the storage drawer (4) is provided on one side of the box body (1). When the storage drawer (4) is fully pushed into the second storage space (13), it is locked by a locking mechanism (5). A force-applying groove (41) is provided on the end face of the storage drawer (4).

2. The plastic storage box according to claim 1, characterized in that: The cover buckle (3) includes a hook (31), a buckle seat (32), an operating handle (33), a mounting shaft (34), and a hanging ring (35); The hook (31) is fixed to the free end face of the flap (2); The buckle seat (32) is fixed to the top of the outer side wall of the box body (1); The operating handle (33) is rotatably mounted on the buckle seat (32) via the mounting shaft (34); The hanging ring (35) is rotatably mounted on the operating handle (33) at a position offset from the mounting shaft (34) and is adapted to the hook (31).

3. The plastic storage box according to claim 1, characterized in that: The cover buckle (3) is symmetrically distributed in two sets.

4. A plastic storage box according to claim 1, characterized in that: The locking mechanism (5) includes a locking block (51), a mounting plate (53), a wedge block (54), and a return spring (55); The locking block (51) is fixed to the end face of the storage drawer (4), and a locking groove (511) is provided on the locking block (51); The mounting plate (53) is slidably connected to the housing body (1); The wedge block (54) is fixed to the bottom surface of the mounting plate (53) and is adapted to the locking groove (511); The return spring (55) is used to provide the elastic force for the mounting plate (53) to move downward so that the wedge block (54) is embedded in the locking groove (511).

5. A plastic storage box according to claim 4, characterized in that: The locking mechanism (5) also includes a limiting plate (52), a guide rod (56), and a limiting disc (57); The limiting plate (52) is fixed to the outer side wall of the box body (1); Two guide rods (56) are symmetrically fixed to the top surface of the mounting plate (53) and pass through the limiting plate (52). The reset spring (55) is sleeved on the guide rods (56) and is located between the limiting plate (52) and the mounting plate (53). The limiting plate (57) is fixed to the top of the guide rod (56).

6. A plastic storage box according to claim 5, characterized in that: The locking mechanism (5) also includes a T-shaped pull rod (58); The vertical part of the T-shaped tie rod (58) passes through the limiting plate (52) and is rigidly fixed to the mounting plate (53).

7. A plastic storage box according to claim 1, characterized in that: It also includes a handle (6) and a flexible anti-slip sleeve (7); The two handles (6) are symmetrically hinged to both sides of the box body (1), and the flexible anti-slip sleeve (7) is fitted onto the handles (6).

8. A plastic storage box according to claim 1, characterized in that: The top surface of the flip cover (2) is provided with a positioning groove (21), and the bottom surface of the box body (1) is fixed with a positioning boss (8) that matches the positioning groove (21).

Images