Explosion-proof metal box

By designing a combination of the enclosure, the first explosion-proof component, and the second explosion-proof component within the explosion-proof metal box, the problem of the complex structure and inconvenient use of existing explosion-proof charging boxes is solved, thereby improving both safety and ease of use.

CN224248775UActive Publication Date: 2026-05-15DONGGUAN LIANGLVFANG PACKAGE PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN LIANGLVFANG PACKAGE PROD CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing explosion-proof charging boxes have complex structures and are inconvenient to use.

Method used

An explosion-proof metal box is designed, comprising a housing, a first explosion-proof component, and a second explosion-proof component. A lithium battery is housed in the bottom shell, and a cover plate covers the front panel. The first explosion-proof component is installed in the bottom shell, and the second explosion-proof component is installed in the cover plate. The flame is isolated inside the box, and exhaust and smoke are achieved through the through holes in the cover plate and the support plate.

Benefits of technology

It improves safety, is easy to use, and has excellent explosion-proof performance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224248775U_ABST
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Abstract

The explosion-proof metal box comprises a box body, a first explosion-proof piece and a second explosion-proof piece, the box body comprises a bottom shell, a panel, a cover plate, a supporting plate and a sealing gasket, the bottom shell is provided with a containing cavity for containing a lithium battery, the panel is arranged on the bottom shell in a covering mode, the supporting plate is arranged on the cover plate in a covering mode, one end of the cover plate is pivoted to one end of the panel, and the cover plate is provided with a first through hole; a second through hole is formed in the supporting plate; the sealing gasket is installed on the side, away from the supporting plate, of the cover plate and used for sealing the cover plate and the panel. The first anti-explosion piece is installed on the bottom shell, the panel covers the first anti-explosion piece, the second anti-explosion piece is installed on the cover plate, and the supporting plate covers the second anti-explosion piece. According to the explosion-proof metal box, the lithium battery is contained in the bottom shell, then the cover plate covers the panel, the first explosion-proof piece is installed on the bottom shell, the second explosion-proof piece is installed on the cover plate, flames are isolated in the box body, and safety is improved; the first through hole is formed in the cover plate, and the second through hole is formed in the supporting plate, so that the exhaust and smoke exhaust effects are achieved; the explosion-proof metal box is convenient to use and good in explosion-proof effect.
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Description

Technical Field

[0001] This utility model relates to the field of protection technology, and in particular to an explosion-proof metal box. Background Technology

[0002] Lithium batteries are widely used in electronic devices such as drones and electric bicycles because they can provide power at any time. However, lithium batteries pose a risk of explosion and fire during charging, leading to the development of explosion-proof charging cases. For example, patent CN209545198U discloses a novel intelligent mobile explosion-proof charging case for drone batteries, comprising a metal explosion-proof case body, a battery mounting bracket, and a charging terminal interface board. The metal explosion-proof case body has a lid at the top, and the battery mounting bracket and charging terminal interface board are arranged from top to bottom inside. The battery mounting bracket has vertical insertion holes for embedding drone batteries, and the charging terminal interface board corresponding to the center of these vertical insertion holes has charging terminals electrically connected to a main charging terminal, which is installed on the outside of the side wall of the metal explosion-proof case body. However, this explosion-proof charging case has a relatively complex structure and is inconvenient to use. Utility Model Content

[0003] Therefore, it is necessary to provide an easy-to-use explosion-proof metal box to address the above problems.

[0004] An explosion-proof metal box includes a box body, a first explosion-proof component, and a second explosion-proof component. The box body includes a bottom shell, a front panel, a cover plate, a support plate, and a sealing gasket. The bottom shell has a receiving cavity to accommodate a lithium battery. The front panel covers the bottom shell, and the support plate covers the cover plate. One end of the cover plate is pivotally connected to one end of the front panel. The cover plate has a first through hole, and the support plate has a second through hole. The sealing gasket is installed on the side of the cover plate away from the support plate and is used to seal the cover plate and the front panel. The first explosion-proof component is installed on the bottom shell, the front panel covers the first explosion-proof component, the second explosion-proof component is installed on the cover plate, and the support plate covers the second explosion-proof component.

[0005] In one embodiment, the housing further includes a plurality of fixing blocks, each fixing block being arranged along the periphery of the cover plate, one end of the fixing block being connected to the cover plate, and the other end being fixed to the sealing gasket.

[0006] In one embodiment, the enclosure further includes a first reinforcing mesh and a second reinforcing mesh, the first reinforcing mesh being installed on the cover plate and the second reinforcing mesh being installed on the support plate, the first reinforcing mesh and the second reinforcing mesh being respectively connected to both sides of the second explosion-proof component.

[0007] In one embodiment, the housing further includes a wiring sleeve, one end of which is mounted on the cover plate and the other end of which is mounted on the support plate; the wiring sleeve is provided with a wire groove for cables to pass through.

[0008] In one embodiment, the housing further includes a pull strap, with both ends of the pull strap respectively installed on both sides of the bottom shell.

[0009] In one embodiment, the housing further includes a buckle and a hook, the buckle being installed on one side of the bottom shell and the hook being installed on one side of the cover plate, the buckle being used to engage the hook.

[0010] In one embodiment, the housing further includes a hinge, one end of which is connected to the panel and the other end to the cover.

[0011] In one embodiment, the bottom shell, the front panel, the cover plate, and the support plate are all made of iron.

[0012] In one embodiment, both the first explosion-proof component and the second explosion-proof component are explosion-proof cotton.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] The explosion-proof metal box of this utility model houses a lithium battery in the bottom shell, and a cover plate covers the front panel. The first explosion-proof component is installed in the bottom shell, and the second explosion-proof component is installed in the cover plate, which isolates the flame inside the box and improves safety. The cover plate has a first through hole, and the support plate has a second through hole, which serves to exhaust and vent smoke. This explosion-proof metal box is convenient to use and has a good explosion-proof effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an explosion-proof metal box according to one embodiment of the present invention;

[0016] Figure 2 for Figure 1 The diagram shown is of an explosion-proof metal box in the open state, with buckles, hooks, and pull straps for demonstration purposes.

[0017] Figure 3 for Figure 2 A magnified view of circle A in the middle.

[0018] The meanings of the numbers in the attached diagram are as follows:

[0019] 100. Explosion-proof metal box;

[0020] 10. Enclosure; 11. Bottom shell; 110. Receiving cavity; 12. Front panel; 13. Cover plate; 131. First through hole; 14. Support plate; 141. Second through hole; 15. Sealing gasket; 16. Fixing block; 17. First reinforcing mesh; 18. Second reinforcing mesh; 19. Wiring sleeve; 190. Cable trough; 11a. Buckle; 12a. Hook; 13a. Hinge; 14a. Pull strap; 20. Second explosion-proof component. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0026] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0027] Please refer to Figures 1 to 3 An explosion-proof metal box 100 according to one embodiment of the utility model includes a box body 10, a first explosion-proof component (not shown) and a second explosion-proof component 20. The box body 10 includes a bottom shell 11, a front panel 12, a cover plate 13, a support plate 14 and a sealing gasket 15. The bottom shell 11 has a receiving cavity 110 to accommodate a lithium battery. The front panel 12 covers the bottom shell 11, and the support plate 14 covers the cover plate 13. One end of the cover plate 13 is pivotally connected to one end of the front panel 12. The cover plate 13 has a first through hole 131, and the support plate 14 has a second through hole 141. The sealing gasket 15 is installed on the side of the cover plate 13 away from the support plate 14, and the sealing gasket 15 is used to seal the cover plate 13 and the front panel 12. The first explosion-proof component is installed on the bottom shell 11, the front panel 12 covers the first explosion-proof component, the second explosion-proof component 20 is installed on the cover plate 13, and the support plate 14 covers the second explosion-proof component 20. The explosion-proof metal box 100 houses a lithium battery in the bottom shell 11, and the cover plate 13 covers the panel 12. The first explosion-proof component is installed in the bottom shell 11, and the second explosion-proof component 20 is installed in the cover plate 13, which isolates the flame within the box 10 and improves safety. The cover plate 13 has a first through hole 131, and the support plate 14 has a second through hole 141, which serve to exhaust and remove smoke.

[0028] like Figures 1 to 3As shown, in this embodiment, the housing 10 includes a bottom shell 11, a panel 12, a cover plate 13, a support plate 14, and a sealing gasket 15. The bottom shell 11 has a receiving cavity 110 to accommodate a lithium battery. The panel 12 covers the bottom shell 11, and the support plate 14 covers the cover plate 13. One end of the cover plate 13 is pivotally connected to one end of the panel 12. The cover plate 13 has a first through hole 131, and the support plate 14 has a second through hole 141 for venting and smoke extraction. The sealing gasket 15 is installed on the side of the cover plate 13 away from the support plate 14, and the sealing gasket 15 is used to seal the cover plate 13 and the panel 12.

[0029] In one embodiment, the housing 10 further includes a plurality of fixing blocks 16, each fixing block 16 being arranged along the periphery of the cover plate 13. One end of each fixing block 16 is connected to the cover plate 13, and the other end is used to fix the sealing gasket 15, thereby further securing the sealing gasket 15 and preventing it from detaching from the cover plate 13. The housing 10 also includes a first reinforcing mesh 17 and a second reinforcing mesh 18. The first reinforcing mesh 17 is installed on the cover plate 13, and the second reinforcing mesh 18 is installed on the support plate 14. The first reinforcing mesh 17 and the second reinforcing mesh 18 are respectively connected to both sides of the second explosion-proof component 20. Optionally, both the first reinforcing mesh 17 and the second reinforcing mesh 18 are steel wire mesh.

[0030] like Figure 1 and Figure 2 As shown, the housing 10 also includes a wiring sleeve 19, one end of which is installed on the cover plate 13 and the other end on the support plate 14; the wiring sleeve 19 has a wire groove 190 for cable passage. The housing 10 also includes a buckle 11a and a hook 12a, the buckle 11a being installed on one side of the bottom shell 11 and the hook 12a being installed on one side of the cover plate 13. The buckle 11a is used to engage the hook 12a to close or open the bottom shell 11 and the cover plate 13, which is prior art. Optionally, the housing 10 also includes a hinge 13a, one end of which is connected to the panel 12 and the other end to the cover plate 13. The housing 10 also includes a pull strap 14a, the two ends of which are respectively installed on both sides of the bottom shell 11 for lifting. In one embodiment, the bottom shell 11, the panel 12, the cover plate 13, and the support plate 14 are all made of iron, which makes the structure sturdy and fireproof.

[0031] like Figure 2 and Figure 3As shown, the first explosion-proof component (not shown) is installed on the bottom shell 11, the panel 12 covers the first explosion-proof component, the second explosion-proof component 20 is installed on the cover plate 13, and the support plate 14 covers the second explosion-proof component 20. Optionally, both the first explosion-proof component and the second explosion-proof component 20 are explosion-proof cotton. The first explosion-proof component is installed on the bottom shell 11 and then covered by the panel 12; the second explosion-proof component 20 is installed on the support cover plate 13 and then covered by the support plate 14. The bottom shell 11 and panel 12, and the cover plate 13 and support plate 14 are fixed together with rivets, resulting in a robust structure.

[0032] During charging, the lithium battery is placed in the receiving cavity 110 of the bottom shell 11. One end of the cable is threaded through the connector sleeve 19, and the other end is connected to the lithium battery. The cover plate 13 then covers the panel 12, and the cover plate 12 is closed by engaging the latch 11a and hook 12a. The sealing gasket 15 seals the panel 12 and the cover plate 13. The first explosion-proof component is installed on the bottom shell 11, and the second explosion-proof component 20 is installed on the cover plate 13 to isolate the flame within the housing 10, thereby improving safety. The cover plate 13 has a first through hole 131, and the support plate 14 has a second through hole 141, which serve to exhaust and vent smoke.

[0033] The explosion-proof metal box 100 of this utility model houses a lithium battery in the bottom shell 11, and the cover plate 13 covers the front panel 12. The first explosion-proof component is installed in the bottom shell 11, and the second explosion-proof component 20 is installed in the cover plate 13, which isolates the flame within the box 10 and improves safety. The cover plate 13 has a first through hole 131, and the support plate 14 has a second through hole 141, which serves to exhaust and vent smoke. This explosion-proof metal box 100 is easy to use and has a good explosion-proof effect.

[0034] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An explosion-proof metal box, characterized in that, The device includes a housing, a first explosion-proof component, and a second explosion-proof component. The housing includes a bottom shell, a front panel, a cover plate, a support plate, and a sealing gasket. The bottom shell has a cavity for accommodating a lithium battery. The front panel covers the bottom shell, and the support plate covers the cover plate. One end of the cover plate is pivotally connected to one end of the front panel. The cover plate has a first through hole, and the support plate has a second through hole. The sealing gasket is installed on the side of the cover plate away from the support plate and is used to seal the cover plate and the front panel. The first explosion-proof component is installed on the bottom shell, the front panel covers the first explosion-proof component, the second explosion-proof component is installed on the cover plate, and the support plate covers the second explosion-proof component.

2. The explosion-proof metal box according to claim 1, characterized in that, The housing also includes multiple fixing blocks, each of which is arranged along the periphery of the cover plate. One end of each fixing block is connected to the cover plate, and the other end is used to fix the sealing gasket.

3. The explosion-proof metal box according to claim 1, characterized in that, The enclosure also includes a first reinforcing mesh and a second reinforcing mesh. The first reinforcing mesh is installed on the cover plate, and the second reinforcing mesh is installed on the support plate. The first reinforcing mesh and the second reinforcing mesh are respectively connected to both sides of the second explosion-proof component.

4. The explosion-proof metal box according to claim 1, characterized in that, The enclosure also includes a wiring sleeve, one end of which is installed on the cover plate and the other end of which is installed on the support plate; the wiring sleeve is provided with a wire groove for cables to pass through.

5. The explosion-proof metal box according to claim 1, characterized in that, The housing also includes a pull strap, with both ends of the pull strap respectively installed on both sides of the bottom shell.

6. The explosion-proof metal box according to claim 1, characterized in that, The housing also includes a buckle and a hook. The buckle is installed on one side of the bottom shell, and the hook is installed on one side of the cover plate. The buckle is used to engage the hook.

7. The explosion-proof metal box according to claim 1, characterized in that, The housing also includes a hinge, one end of which is connected to the panel and the other end of which is connected to the cover plate.

8. The explosion-proof metal box according to claim 1, characterized in that, The bottom shell, the front panel, the cover plate, and the support plate are all made of iron.

9. The explosion-proof metal box according to claim 1, characterized in that, Both the first and second explosion-proof components are made of explosion-proof cotton.