Metal packaging box with self-locking structure

Abstract

The utility model relates to a metal packing box with a self-locking structure, which comprises a box body and a box cover, an inner edge part is arranged on the inner wall of the box body, a mounting block is arranged at the bottom of the box cover, two groups of toothed plates are slidably mounted in the mounting block, each group of toothed plates comprises two parallel toothed plates, and two adjacent toothed plates are perpendicular to each other. The ends of the four toothed plates penetrate to the outer surfaces of the four sides of the mounting block correspondingly, and a locking mechanism capable of driving the four toothed plates to move at the same time is arranged in the mounting block. Through the arrangement of the locking mechanism, after the box cover covers the box body, the four toothed plates all extend out of the outer side of the mounting block and abut against the lower surface of the inner edge part, so that the box cover is fixedly mounted, and the four toothed plates respectively provide a connection effect from four directions, so that the connection strength of the box cover and the box body is improved, and the service life of the box cover is prolonged. The situation that deformation or damage occurs due to the influence of external force in the using process is reduced, and the sealing effect is improved to a certain degree.

Description

Technical Field

[0001] This utility model relates to the field of packaging box technology, specifically a metal packaging box with a self-locking structure. Background Technology

[0002] Packaging boxes are containers used for packaging, protecting, displaying, and transporting goods. They are usually made of paper, plastic, wood, metal, or other composite materials, and have an attractive appearance and a certain structural strength. They are designed to enhance the value of goods, attract consumers' attention, and ensure the safety and integrity of goods during circulation.

[0003] Existing metal packaging boxes typically have lids that are hinged on one side and connected to the box body on the other. This method of fixing results in the lid being connected only on both sides, which leads to poor structural strength. During use, the lid may be more susceptible to deformation or damage due to external forces. Furthermore, this connection method can affect the sealing of the packaging box, potentially causing gaps or loosening, allowing outside air, moisture, or dust to enter the packaging box and adversely affect the contents. Utility Model Content

[0004] The purpose of this utility model is to provide a metal packaging box with a self-locking structure, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution.

[0006] A metal packaging box with a self-locking structure includes a box body and a lid. The inner wall of the box body has an inner edge, and the bottom of the lid has a mounting block. Two sets of toothed plates are slidably mounted inside the mounting block. Each set of toothed plates includes two parallel toothed plates, with adjacent toothed plates perpendicular to each other. The ends of the four toothed plates extend to the four outer surfaces of the mounting block. The mounting block has a locking mechanism inside that can simultaneously drive the four toothed plates to move. A groove is formed on the outer surface of the mounting block, and an air bladder is disposed inside the groove. The mounting block has a pressurization mechanism inside that can inflate and deflate the air bladder.

[0007] Therefore, by designing a locking mechanism, after the lid is placed on the box body, all four toothed plates extend outwards from the mounting block and abut against the lower surface of the inner edge, thus securing the lid in place. The four toothed plates provide connection from four directions, increasing the connection strength between the lid and the box body and reducing the likelihood of deformation or damage due to external forces during use, thereby improving the sealing effect to some extent. Furthermore, the pressure mechanism and airbag design, when the lid is placed on the box body, inflates the airbag and presses it against the inner edge, sealing the gap between the lid and the box body, significantly improving the sealing effect and enhancing the protection of the contents inside the box.

[0008] Furthermore, the locking mechanism includes a hollow shaft rotatably installed inside the mounting block, with gears mounted on the outer surface of the hollow shaft, and four toothed plates meshing with the gears. A telescopic rod is installed inside the mounting block, with the end of the telescopic rod connected to the outer surface of one of the toothed plates, and a spring sleeved on the outer surface of the telescopic rod.

[0009] Furthermore, the pressurization mechanism includes a fixed rod installed inside the mounting block, an air chamber is opened inside the fixed rod, a screw is threaded through and connected to the air chamber, a piston is installed inside the air chamber and connected to the end of the screw, and a vent pipe is connected to the outer surface of the fixed rod, the end of the vent pipe is connected to the air bladder.

[0010] Furthermore, the fixing rod is coaxially arranged inside the hollow shaft, and a relief groove is opened on the outer surface of the hollow shaft, through which the vent pipe passes and connects to the airbag.

[0011] Furthermore, the outer surface of the box has a recessed portion, and the box lid fits into the recessed portion.

[0012] Furthermore, the ends of the toothed plate and the outer surface of the inner edge are both inclined surfaces.

[0013] Furthermore, the outer surface of the hollow shaft is uniformly provided with anti-slip protrusions.

[0014] Furthermore, the outer surfaces of both the box and the lid are coated with anti-rust paint.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows.

[0016] 1. By setting a locking mechanism, this utility model allows the four toothed plates to extend out of the outer side of the mounting block and abut against the lower surface of the inner edge after the lid is placed on the box body, thereby achieving a fixed installation of the lid. Furthermore, the four toothed plates provide a connecting function from four directions, thereby improving the connection strength between the lid and the box body, reducing the possibility of deformation or damage due to external forces during use, and improving the sealing effect to a certain extent.

[0017] 2. This utility model, through the setting of a pressurizing mechanism and an airbag, when the lid is placed on the box body, the airbag expands and presses against the inner edge, thereby sealing the gap between the lid and the box body, significantly improving the sealing effect and thus strengthening the protection of the items inside the box. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of the box body in this utility model;

[0020] Figure 3 This is a cross-sectional structural diagram of the box lid in this utility model;

[0021] Figure 4 This is a schematic diagram of the locking mechanism in this utility model;

[0022] Figure 5 This is a schematic diagram of the hollow shaft and air bladder in this utility model;

[0023] Figure 6 This is a schematic diagram of the pressurization mechanism in this utility model;

[0024] Figure 7 This is a partial cross-sectional structural diagram of the present invention.

[0025] In the diagram: 100, box body; 101, box lid; 102, inner edge; 103, toothed plate; 104, mounting block; 105, airbag; 200, locking mechanism; 201, hollow shaft; 202, gear; 203, telescopic rod; 204, spring; 300, pressurizing mechanism; 301, fixing rod; 302, air chamber; 303, screw; 304, piston; 305, vent pipe; 400, clearance groove; 500, recessed part; 600, anti-slip protrusion. Detailed Implementation

[0026] 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.

[0027] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, 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. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0028] In this embodiment of the invention, 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. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0029] Please see Figures 1-7 This utility model provides a metal packaging box with a self-locking structure, including a box body 100 and a box lid 101. The inner wall of the box body 100 is provided with an inner edge 102. The bottom of the box lid 101 is provided with a mounting block 104. Two sets of toothed plates 103 are slidably mounted inside the mounting block 104. Each set of toothed plates 103 includes two parallel toothed plates 103, and adjacent toothed plates 103 are perpendicular to each other. The ends of the four toothed plates 103 extend to the four outer surfaces of the mounting block 104. The mounting block 104 is provided with a locking mechanism 200 that can simultaneously drive the four toothed plates 103 to move. The outer surface of the mounting block 104 is provided with a groove, and an airbag 105 is provided inside the groove. The mounting block 104 is provided with a pressurizing mechanism 300 that can inflate and deflate the airbag 105.

[0030] When it is necessary to fix the lid 101 to the box body 100 during use, the lid 101 can be placed on the box body 100 and the mounting block 104 can be inserted into the inside of the box body 100. Then, the locking mechanism 200 drives the four toothed plates 103 to extend outward at the same time and abut against the lower side of the inner edge 102. Due to the limiting effect of the toothed plates 103 and the inner edge 102, the lid 101 can be prevented from moving upward, thus achieving the purpose of fixing. Then, the airbag 105 can be inflated by the pressurizing mechanism 300 and pressed against the inner edge 102, thereby sealing the gap between the lid 101 and the box body 100, significantly improving the sealing effect, and thus strengthening the protection of the items inside the box body 100.

[0031] Specifically, the locking mechanism 200 includes a hollow shaft 201 rotatably installed inside the mounting block 104. A gear 202 is installed on the outer surface of the hollow shaft 201, and four toothed plates 103 are meshed with the gear 202. A telescopic rod 203 is installed inside the mounting block 104. The end of the telescopic rod 203 is connected to the outer surface of one of the toothed plates 103. A spring 204 is sleeved on the outer surface of the telescopic rod 203. When the cover 101 is removed, the hollow shaft 201 can be rotated at a certain angle, and the hollow shaft 201 drives the gear 202 to rotate. Since the gear 202 is meshed with all four toothed plates 103 at the same time, it can simultaneously drive all four toothed plates 103 to slide and retract their ends into the mounting block 104. At this time, the cover 101 can be lifted up and removed directly.

[0032] Specifically, the pressurizing mechanism 300 includes a fixed rod 301 installed inside the mounting block 104. An air chamber 302 is formed inside the fixed rod 301, and a screw 303 is threaded through and threaded into the air chamber 302. A piston 304 is disposed inside the air chamber 302 and is connected to the end of the screw 303. A vent pipe 305 is connected to the outer surface of the fixed rod 301, and the end of the vent pipe 305 is connected to the air bladder 105. When the screw 303 is turned, due to the threaded connection between it and the fixed rod 301, it can drive the piston 304 within the air chamber 302. The internal movement of the 02 causes the piston 304 to descend and compress the air in the air chamber 302, allowing air to enter the airbag 105 through the vent pipe 305 and inflate it. When the screw 303 is rotated in the opposite direction to drive the piston 304, the air inside the airbag 105 can be drawn into the air chamber 302, causing the airbag 105 to contract. Therefore, before removing the lid 101, the airbag 105 must be contracted to separate it from the inner edge 102, so that the lid 101 can be easily removed. Otherwise, the friction between the airbag 105 and the inner edge 102 will make it difficult to remove the lid 101.

[0033] Specifically, the fixing rod 301 is coaxially arranged inside the hollow shaft 201. The outer surface of the hollow shaft 201 is provided with a relief groove 400, and the vent pipe 305 passes through the relief groove 400 and connects to the airbag 105. The fixing rod 301 is arranged inside the hollow shaft 201, which is reasonable and can improve the aesthetics. Since the fixing rod 301 is fixed when the hollow shaft 201 rotates, the relief groove 400 can be used to ensure that the vent pipe 305 will not be affected when the hollow shaft 201 rotates.

[0034] Specifically, the outer surface of the box body 100 is provided with a recessed portion 500, and the box lid 101 is adapted to the recessed portion 500. The recessed portion 500 makes the outer surface of the box lid 101 relatively flat after it is placed on the box body 100, without any protruding parts, thus improving the aesthetics.

[0035] Specifically, the ends of the toothed plates 103 and the outer surfaces of the inner edges 102 are all inclined structures. With the inclined structure, when the lid 101 is installed, the lid 101 is first placed on the upper side of the box body 100. At this time, the inclined surfaces at the ends of the four toothed plates 103 are pressed against the inclined surfaces of the inner edges 102. Through the pressing action of the inclined surfaces, the four toothed plates 103 retract into the mounting block 104 and compress the spring 204. When the toothed plates 103 move to the lower part of the inner edges 102, the compressed spring 204 releases its elastic force, which can push the four toothed plates 103 to extend outward and abut against the lower part of the inner edges 102, thereby achieving the purpose of self-locking and enabling quick installation.

[0036] Specifically, the outer surface of the hollow shaft 201 is uniformly provided with anti-slip protrusions 600. By setting the anti-slip protrusions 600, the friction between the hollow shaft 201 and the hand can be increased, reducing the chance of slipping.

[0037] Specifically, the outer surfaces of the box body 100 and the box cover 101 are coated with anti-rust paint. The anti-rust paint can increase the corrosion resistance of the box body 100 and the box cover 101 and improve their service life.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A metal packaging box with a self-locking structure, comprising a box body (100) and a box lid (101), characterized in that: The inner wall of the box body (100) is provided with an inner edge (102), and the bottom of the box cover (101) is provided with a mounting block (104). Two sets of toothed plates (103) are slidably installed inside the mounting block (104). Each set of toothed plates (103) includes two parallel toothed plates (103), and two adjacent toothed plates (103) are perpendicular to each other. The ends of the four toothed plates (103) respectively penetrate to the four outer surfaces of the mounting block (104). The mounting block (104) is provided with a locking mechanism (200) that can drive the four toothed plates (103) to move simultaneously. The outer surface of the mounting block (104) is provided with a groove, and an airbag (105) is provided inside the groove. The mounting block (104) is provided with a pressurizing mechanism (300) that can inflate and deflate the airbag (105).

2. A metal packaging box with a self-locking structure according to claim 1, characterized in that: The locking mechanism (200) includes a hollow shaft (201) rotatably mounted inside the mounting block (104). A gear (202) is mounted on the outer surface of the hollow shaft (201), and four gear plates (103) are meshed with the gear (202). A telescopic rod (203) is mounted inside the mounting block (104). The end of the telescopic rod (203) is connected to the outer surface of one of the gear plates (103), and a spring (204) is sleeved on the outer surface of the telescopic rod (203).

3. A metal packaging box with a self-locking structure according to claim 2, characterized in that: The pressurization mechanism (300) includes a fixed rod (301) installed inside the mounting block (104). An air chamber (302) is provided inside the fixed rod (301). A screw (303) is threaded through and connected to the air chamber (302). A piston (304) is provided inside the air chamber (302), and the piston (304) is connected to the end of the screw (303). A vent pipe (305) is connected to the outer surface of the fixed rod (301), and the end of the vent pipe (305) is connected to the airbag (105).

4. A metal packaging box with a self-locking structure according to claim 3, characterized in that: The fixing rod (301) is coaxially arranged inside the hollow shaft (201), and a relief groove (400) is provided on the outer surface of the hollow shaft (201), and the vent pipe (305) passes through the relief groove (400) and is connected to the airbag (105).

5. A metal packaging box with a self-locking structure according to claim 1, characterized in that: The outer surface of the box body (100) is provided with a recess (500), and the box cover (101) is adapted to the recess (500).

6. A metal packaging box with a self-locking structure according to claim 1, characterized in that: The end of the toothed plate (103) and the outer surface of the inner edge (102) are both inclined structures.

7. A metal packaging box with a self-locking structure according to claim 2, characterized in that: The outer surface of the hollow shaft (201) is uniformly provided with anti-slip protrusions (600).

8. A metal packaging box with a self-locking structure according to claim 1, characterized in that: The outer surfaces of the box body (100) and the box cover (101) are coated with anti-rust paint.

Images