Small shielding box

Abstract

The utility model relates to the technical field of shielding boxes, in particular to a small-sized shielding box, which comprises a shielding box body, a mounting groove is arranged at the top end of the shielding box body, a shielding cover is arranged on the mounting groove, a fastening mechanism is arranged between the shielding cover and the shielding box body, a shielding mechanism is arranged at the bottom end of the shielding cover, and the shielding mechanism is arranged on the shielding box body. The fastening mechanism comprises a fastening groove, a butt joint groove and a fixing plate, the fastening groove is formed in one side of the mounting groove, an elastic component and an inclined plate are arranged on the fastening groove, the butt joint groove is formed in one side of the shielding cover, the fixing plate is mounted at the top end of the shielding cover, and the elastic component is arranged in the butt joint groove. According to the structure, rapid assembly and disassembly of the shielding cover can be achieved, when equipment needs to be installed, the shielding cover can be rapidly fixed only by arranging the shielding cover on the installation groove and utilizing matching of the inclined plate and the limiting groove, complex tools or tedious steps are not needed, and the working efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shielding boxes, in particular to a small shielding box. Background Art

[0002] As is well known, in scenarios such as the testing, debugging of electronic devices, and signal sensitivity experiments, shielding external electromagnetic interference is crucial for ensuring the accuracy of test data and protecting internal devices from unnecessary interference. Traditional designs of small shielding boxes often focus on shielding effectiveness while neglecting operational convenience, resulting in cumbersome installation and disassembly processes of the devices, which affects work efficiency. Especially for situations where test equipment needs to be frequently replaced or maintained, shielding boxes lacking a fast assembly and disassembly mechanism will significantly increase operation time and labor costs. In addition, some existing designs may easily experience component loosening or displacement after long-term use, affecting the stability of the shielding effect. Therefore, it is necessary to propose a solution to this technical problem. Summary of the Utility Model

[0003] (1) Technical Problem to be Solved

[0004] In view of the deficiencies of the prior art, the utility model provides a small shielding box.

[0005] (2) Technical Solution

[0006] To achieve the above object, the utility model provides the following technical solution: a small shielding box, including a shielding box body. An installation groove is opened at the top end of the shielding box body. A shielding cover is provided on the installation groove. A fastening mechanism is provided between the shielding cover and the shielding box body. A shielding mechanism is provided at the bottom end of the shielding cover. The fastening mechanism includes a fastening groove, a docking groove, and a fixing plate. The fastening groove is opened on one side of the installation groove. An elastic member and an inclined plate are provided on the fastening groove. The docking groove is opened on one side of the shielding cover. The fixing plate is installed at the top end of the shielding cover. A slotted hole is opened on the fixing plate. A guiding groove is opened between the slotted hole and the docking groove. A limiting groove is opened between the guiding groove and the docking groove. A guiding plate is provided on the guiding groove. The inclined plate abuts against the limiting groove. A limiting block is provided between the guiding plate and the limiting groove. An inclined slot is opened at the bottom end of the guiding plate.

[0007] Further, the utility model is improved in that the shielding mechanism includes an installation frame. An installation mechanism is provided between the installation frame and the bottom end of the shielding cover. A power line filter and a signal line filter are provided on the installation frame.

[0008] Further, the utility model is improved in that the installation mechanism includes a threaded groove and a threaded post. The threaded groove is opened at the bottom end of the shielding cover. The threaded post is installed at the top end of the installation frame. The threaded post is threadedly connected to the threaded groove.

[0009] Furthermore, the present utility model is improved in that a handle is provided at the bottom end of the mounting frame.

[0010] Furthermore, the present utility model is improved in that shielding layers are provided at both the top end and the bottom end of the shielding cover.

[0011] Furthermore, the present utility model is improved in that the elastic member is an alloy spring.

[0012] Furthermore, the present utility model is improved in that the limiting block and the inclined plate are both adapted to the limiting groove.

[0013] Furthermore, the present utility model is improved in that arc edges are provided around the slotted opening.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the present utility model provides a small shielding box, which has the following beneficial effects:

[0016] For this small shielding box, this structure can achieve the rapid assembly and disassembly of the shielding cover. When installing equipment, only need to place the shielding cover on the installation groove, and it can be quickly fixed by the cooperation of the inclined plate and the limiting groove, without complex tools or long steps, significantly improving the work efficiency. The close fit between the shielding box body and the shielding cover forms a closed electromagnetic shielding environment, effectively blocking external electromagnetic interference and protecting the accuracy of equipment testing inside the box. Personnel can quickly open the shielding cover through simple manual operations, facilitating the replacement or maintenance of equipment, reducing the maintenance cost, and prolonging the service life of the shielding box. Brief description of the drawings

[0017] Figure 1 is a schematic structural view of the present utility model Figure 1 ;

[0018] Figure 2 is a schematic structural view of the present utility model Figure 2 ;

[0019] Figure 3 is a left half-sectional view of the structure of the present utility model;

[0020] Figure 4 is a top half-sectional view of the structure of the present utility model.

[0021] In the figure: 1. Shielding box body; 2. Shielding cover; 3. Fixed plate; 4. Elastic member; 5. Inclined plate; 6. Guide plate; 7. Limiting block; 8. Mounting frame; 9. Power line filter; 10. Signal line filter; 11. Threaded post; 12. Handle; 13. Limiting groove. Detailed implementation manners

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-4 , the present invention is a small shielding box, including a shielding box body 1. An installation groove is opened at the top of the shielding box body 1. A shielding cover 2 is provided on the installation groove. A fastening mechanism is provided between the shielding cover 2 and the shielding box body 1. A shielding mechanism is provided at the bottom end of the shielding cover 2. The fastening mechanism includes a fastening groove, a docking groove and a fixing plate 3. The fastening groove is opened on one side of the installation groove. An elastic member 4 and an inclined plate 5 are provided on the fastening groove. The docking groove is opened on one side of the shielding cover 2. The fixing plate 3 is installed at the top end of the shielding cover 2. A slotted hole is opened on the fixing plate 3. A guiding groove is opened between the slotted hole and the docking groove. A limiting groove 13 is opened between the guiding groove and the docking groove. A guiding plate 6 is provided on the guiding groove. The inclined plate 5 abuts against the limiting groove 13. A limiting block 7 is provided between the guiding plate 6 and the limiting groove 13. An inclined slot is opened at the bottom end of the guiding plate 6. In this embodiment, the device is placed through the installation groove, and the shielding cover 2 abuts against the installation groove. At this time, the inclined plate 5 is extruded by the bottom end of the shielding cover 2 and moves into the fastening groove. Then the inclined plate 5 is located in the docking groove, and one end of the inclined plate 5 abuts in the limiting groove 13 opened between the docking groove and the guiding groove, so that the shielding cover 2 is fixed on the installation groove. The shielding box body 1 and the shielding cover 2 play a shielding effect on the device in the installation groove. When the device needs to be taken out, the operator holds the top end of the fixing plate 3 through the slotted hole, and then pushes the guiding plate 6 downward. The guiding plate 6 moves linearly in the guiding groove. The inclined slot of the guiding plate 6 contacts and pushes the inclined plate 5, and one end of the inclined plate 5 leaves the limiting groove 13, so that the shielding cover 2 can be taken out. The shielding cover 2 can be assembled or disassembled quickly. The limiting block 7 between the guiding plate 6 and the limiting groove 13 can prevent the guiding plate 6 from disengaging from the guiding groove.

[0024] In this solution, the shielding mechanism includes an installation frame 8. An installation mechanism is provided between the installation frame 8 and the bottom end of the shielding cover 2. A power line filter 9 and a signal line filter 10 are provided on the installation frame 8. Through the installation mechanism between the installation frame 8 and the bottom end of the shielding cover 2, the installation frame 8 can be easily assembled at the bottom end of the shielding cover 2. The power line filter 9 is used to remove the noise on the power line to ensure that the power supplied to the device is pure and not interfered by the outside. The signal line filter 10 is connected to the signal transmission line to filter signals of specific frequencies according to requirements, realizing multi-faceted shielding.

[0025] In this solution, the installation mechanism includes a threaded groove and a threaded post 11. The threaded groove is opened at the bottom end of the shielding cover 2, and the threaded post 11 is installed at the top end of the installation frame 8. The threaded post 11 is threadedly connected to the threaded groove. By threadedly connecting the threaded post 11 at the top end of the installation frame 8 to the threaded groove, the installation frame 8 can be assembled at the bottom end of the shielding cover 2. By rotating the threaded post 11 to remove it from the threaded groove, the installation frame 8 can be easily removed, facilitating the maintenance of the power line filter 9 and the signal line filter 10.

[0026] In this solution, a grip 12 is provided at the bottom end of the installation frame 8. By holding the grip 12 at the bottom end of the installation frame 8, it is convenient to hold and use the installation frame 8.

[0027] In this solution, shielding layers are provided at both the top and bottom ends of the shielding cover 2. Through the shielding layers at the top and bottom ends, double shielding is achieved, thereby improving the shielding effect.

[0028] In this solution, the elastic member 4 is an alloy spring, and the inclined plate 5 can be better elastically supported by the alloy spring.

[0029] In this solution, both the limiting block 7 and the inclined plate 5 are adapted to the limiting groove 13. By the adaptation of the inclined plate 5 and the limiting block 7 to the limiting groove 13, the limiting block 7 can slide stably in the limiting groove 13, and the inclined plate 5 stably abuts against the bottom end of the limiting groove 13.

[0030] In this solution, arc edges are provided around the slot. By the arc edges, it is convenient for personnel to hold the top of the fixing plate 3.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Small shielding box, comprising a shielding box body (1), wherein an installation groove is formed at the top end of the shielding box body (1), characterized in that, A shielding cover (2) is provided on the installation groove, a fastening mechanism is provided between the shielding cover (2) and the shielding box body (1), a shielding mechanism is provided at the bottom end of the shielding cover (2), the fastening mechanism includes a fastening groove, a docking groove and a fixing plate (3), the fastening groove is opened on one side of the installation groove, an elastic member (4) and an inclined plate (5) are provided on the fastening groove, the docking groove is opened on one side of the shielding cover (2), the fixing plate (3) is installed at the top end of the shielding cover (2), a slot is opened on the fixing plate (3), a guiding groove is opened between the slot and the docking groove, a limiting groove (13) is opened between the guiding groove and the docking groove, a guiding plate (6) is provided on the guiding groove, the inclined plate (5) abuts against the limiting groove (13), a limiting block (7) is provided between the guiding plate (6) and the limiting groove (13), and an inclined slot is opened at the bottom end of the guiding plate (6).

2. The small shielding box according to claim 1, characterized in that, The shielding mechanism includes an installation frame (8), an installation mechanism is provided between the installation frame (8) and the bottom end of the shielding cover (2), and a power line filter (9) and a signal line filter (10) are provided on the installation frame (8).

3. The small shielding box according to claim 2, characterized in that The installation mechanism includes a threaded groove and a threaded post (11), the threaded groove is opened at the bottom end of the shielding cover (2), the threaded post (11) is installed at the top end of the installation frame (8), and the threaded post (11) is threadedly connected to the threaded groove.

4. The small shielding box according to claim 3, characterized in that, A handle (12) is provided at the bottom end of the installation frame (8).

5. The small shielding box according to claim 4, wherein, Shielding layers are provided at both the top end and the bottom end of the shielding cover (2).

6. The small shielding box according to claim 5, characterized in that, The elastic member (4) is an alloy spring.

7. The small shielding box according to claim 6, characterized in that, Both the limiting block (7) and the inclined plate (5) are adapted to the limiting groove (13).

8. The small shielding box according to claim 7, characterized in that, Arc edges are provided around the slot.

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