A flip-top tamper-evident shield box

Abstract

This utility model discloses a hinged-top anti-interference detection shielding box, which includes a stable chassis with a cabinet door rotatably connected to its inner surface. It comprises: a rotating shaft rotatable on the inner surface of the cabinet door, with a gear mounted on its outer surface, and a rack meshing with the gear's outer surface; the rack also has a limit engagement mechanism; and a positioning compartment installed on the lower inner surface of the chassis, with a turntable rotatably connected to its inner surface, and the turntable having a synchronous opening mechanism. This hinged-top anti-interference detection shielding box features a chassis for stable placement, improving stability during detection. The automatically opening and closing cabinet door enhances safety during operation. An electrically adjustable locking mechanism allows for stable locking of the cabinet door onto the chassis, further improving door safety. The assembled positioning compartment enables automatic opening and closing of the cabinet door, enhancing intelligent monitoring performance.

Description

Technical Field

[0001] This utility model relates to the field of detection shielding box technology, specifically a flip-top type anti-interference detection shielding box. Background Technology

[0002] The shielding box can effectively shield signal interference and leakage current, thereby improving testing accuracy. It can also effectively protect the safety of operators during high-voltage and high-current testing and reduce external light interference. However, during use, it is inconvenient to control the safety of the cabinet door opening, which can easily lead to accidental opening and danger.

[0003] To overcome the aforementioned shortcomings, the prior art (Chinese patent application CN202010785788.7, filed on 2020-08-06) provides an electromagnetic shielding box for precision testing equipment. This design utilizes a first and second baffle to secure the precision testing equipment, while the elasticity of a first, second, and third spring helps to counteract the forward and backward forces generated during transportation due to bumps, thus protecting the precision testing equipment, reducing its damage rate, and extending its service life. Furthermore, the installed arc-shaped tube and rod are located within a sealed space formed by the upper and lower covers of the shielding box, reducing its footprint and facilitating transport. While the prior art can perform testing, it is inconvenient to control the cabinet door's limit position during operation, making it prone to opening during testing, affecting testing stability and accuracy. Additionally, it is inconvenient to manually open and inspect the equipment during power outages.

[0004] To address the aforementioned issues, there is an urgent need for innovative designs based on the existing testing shielding boxes. Utility Model Content

[0005] The purpose of this utility model is to provide a flip-top anti-interference testing shield box to solve the problems mentioned in the background art, such as the inconvenience of controlling the cabinet door for limit control during operation, the easy opening during the testing process, affecting the stability and accuracy of the testing, and the inconvenience of manually opening for inspection and maintenance when the power is off.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flip-top type anti-interference detection shielding box, comprising a stably placed chassis, with a cabinet door rotatably connected to the inner surface of the chassis; including: a rotating shaft, rotating on the inner surface of the cabinet door, with a gear mounted on the outer surface of the rotating shaft, and a rack meshing with the outer surface of the gear, while the rack is provided with a limit engagement mechanism; a positioning compartment, installed on the lower side of the inner surface of the chassis, with a turntable rotatably connected to the inner surface of the positioning compartment, and the turntable is provided with a synchronous opening mechanism.

[0007] Preferably, the cabinet door forms a positioning and rotating structure with a rotating shaft and a gear, and the gear and rack form a meshing structure, with the rack set at an equal angle to the middle section of the inner surface of the gear.

[0008] Preferably, the limiting engagement mechanism includes a limiting strip mounted on the outer surface of a rack, a locking element mounted on the outer end of the rack, and a pressing block mounted on the outer surface of the locking element. A return spring is elastically connected between the pressing block and the cabinet door.

[0009] Preferably, the rack forms a limiting sliding structure with the cabinet door through the limiting strip, and the rack, the clamping element, and the pressing block form an integrated structure. The pressing block forms an elastic structure with the cabinet door through the return spring, and the cabinet door forms a limiting engagement structure with the chassis through the clamping element.

[0010] Preferably, the outer surface of the cabinet door is fitted with a handle, and the inner surface of the handle is provided with a limiting groove. An unlocking component is nested on the inner surface of the limiting groove and is nested on the inner surface of the rotating shaft.

[0011] Preferably, the cabinet door and the handle form an integrated structure, and the handle forms a nested rotating structure with the unlocking component through the limiting groove, and the unlocking component forms a nested structure with the rotating shaft.

[0012] Preferably, the synchronous opening mechanism includes a connecting rod rotatably connected to the upper surface of the turntable, and a rotating rod rotatably connected to the outer end of the connecting rod. The outer surface of the rotating rod is equipped with a shaft for assembling the cabinet door, and a sealing ring is connected between the cabinet door and the chassis. The chassis and the positioning compartment form an integrated structure, and the positioning compartment forms a rotation centering structure through the turntable and the connecting rod, and the connecting rod forms an angle deflection structure with the cabinet door through the rotating rod.

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

[0014] 1. This flip-top anti-interference testing shielded box is equipped with a chassis that facilitates stable placement, improving stability during testing. It also features an automatically opening and closing cabinet door, enhancing safety during testing. An electrically adjustable locking mechanism allows the cabinet door to be securely locked onto the chassis, further improving safety. Combined with an assembled positioning compartment, the cabinet door can be automatically opened and closed, enhancing intelligent monitoring performance.

[0015] 2. This flip-top anti-interference testing shielded box is equipped with a limit locking mechanism. The gears assembled on the rotating shaft effectively mesh with and adjust the position of the rack. The rack, in turn, cooperates with the assembled limit strip to prevent rack misalignment, thereby controlling the rack's mounting clips to stably lock the cabinet door onto the chassis. Furthermore, the reset spring assembled with the clamping block mounted on the clips facilitates manual control of the cabinet door's opening and closing during power outages, allowing continued testing and maintenance. Additionally, the limit groove on the handle, nested with an unlocking mechanism, allows for manual opening and closing of the cabinet door even without power, via a dedicated unlocking mechanism.

[0016] 3. This flip-top anti-interference detection shielded box is equipped with a synchronous opening mechanism. The small motor assembled at the bottom of the positioning compartment can effectively drive the connecting rod of the turntable assembly, control the cabinet door of the rotating rod assembly, and effectively adjust the angle to control the opening and closing of the cabinet door. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the chassis of this utility model;

[0018] Figure 2 This is a partial cross-sectional perspective view of the three-dimensional structure of the chassis of this utility model;

[0019] Figure 3 This is a partial sectional three-dimensional structural diagram of the cabinet door of this utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged 3D structural diagram at point A in the middle;

[0021] Figure 5 This is a three-dimensional structural diagram of the handle of this utility model;

[0022] Figure 6 This utility model Figure 5 Enlarged 3D structural diagram at point B;

[0023] Figure 7 This is a partial cross-sectional three-dimensional structural diagram of the positioning chamber of this utility model.

[0024] In the diagram: 1. Chassis; 2. Cabinet door; 3. Shaft; 4. Gear; 5. Rack; 6. Limit bar; 7. Clamp; 8. Pressing block; 9. Return spring; 10. Handle; 11. Limit groove; 12. Unlocking component; 13. Positioning chamber; 14. Turntable; 15. Connecting rod; 16. Rotating rod; 17. Sealing ring. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-7 The present invention provides the following technical solution: a flip-top type anti-interference detection shielding box, which is provided with a stable chassis 1, and the inner surface of the chassis 1 is rotatably connected with a cabinet door 2.

[0027] Example 1: As Figures 1-4 The technical solution shown is provided by this utility model as follows: A flip-top type anti-interference detection shielding box, comprising: a rotating shaft 3, rotating on the inner surface of the cabinet door 2, and a gear 4 mounted on the outer surface of the rotating shaft 3, and a rack 5 meshing with the outer surface of the gear 4, while the rack 5 is provided with a limit engagement mechanism; Figure 4 As shown, cabinet door 2 forms a positioning and rotating structure with gear 4 via rotating shaft 3, and gear 4 forms a meshing structure with rack 5, with rack 5 set at an equal angle to the middle section of the inner surface of gear 4; as Figure 4 As shown, the limiting engagement mechanism includes a limiting strip 6 mounted on the outer surface of the rack 5, a locking element 7 mounted on the end of the outer surface of the rack 5, and a pressing block 8 mounted on the outer surface of the locking element 7. A return spring 9 is elastically connected between the pressing block 8 and the cabinet door 2. Figure 4 As shown, the rack 5 forms a limiting sliding structure with the cabinet door 2 through the limiting strip 6, and the rack 5, the clamping piece 7 and the pressing block 8 form an integrated structure. The pressing block 8 forms an elastic structure with the cabinet door 2 through the return spring 9. At the same time, the cabinet door 2 forms a limiting locking structure with the chassis 1 through the clamping piece 7.

[0028] When in use, the small motor assembled on the back of the cabinet door 2 is effectively started, which drives the gear 4 assembled on the rotating shaft 3 to rotate, thereby controlling the gear 4 to mesh with the adjusting rack 5 to move relative to it. In conjunction with the limiting strip 6 installed on the rack 5, the stability of the rack 5 sliding inside the cabinet door 2 is controlled, thereby controlling the locking piece 7 installed on the rack 5 on the cabinet door 2 to disengage from the chassis 1. The cabinet door 2 can be unlocked and used. When in use, it can improve the locking stability between the chassis 1 and the cabinet door 2.

[0029] Example 2: Figure 3 , Figure 5 and Figure 6The technical solution shown, based on Embodiment 1, also discloses manual opening of the cabinet door 2 in the absence of power, improving the convenience and safety of opening and solving the problem of not being able to open the door for inspection and maintenance in the absence of power. The specific details are as follows: A handle 10 is installed on the outer surface of the cabinet door 2, and a limiting groove 11 is formed on the inner surface of the handle 10. An unlocking component 12 is nested within the inner surface of the limiting groove 11, and the unlocking component 12 is nested within the inner surface of the rotating shaft 3; Figure 5 and Figure 6 As shown, the cabinet door 2 and the handle 10 form an integrated structure, and the handle 10 forms a nested rotating structure with the unlocking component 12 through the limiting groove 11, and the unlocking component 12 forms a nested structure with the rotating shaft 3.

[0030] In the event of a power outage, the unlocking component 12 can be stably nested in the limiting groove 11 opened in the cabinet door 2 and the handle 10, and the unlocking component 12 can be stably nested in the rotating shaft 3. Thus, by manually rotating the unlocking component 12, the locking component 7 installed on the control rack 5 of the rotating shaft 3 is disengaged from the limiting engagement, thereby controlling the cabinet door 2 to disengage from the engagement state. This allows for the inspection and maintenance of the entire device. When it is necessary to close the cabinet door 2, the pressing block 8 installed in conjunction with the locking component 7, and the return spring 9 between the pressing block 8 and the cabinet door 2, will elastically engage the locking component 7 on the chassis 1, improving the engagement stability of the device and preventing damage to the internal structure during periods of non-use.

[0031] Example 3: Figure 7 The technical solution shown, based on Embodiment 2, also discloses the automatic opening of the cabinet door 2, which can be automatically opened after unlocking, improving opening stability and solving the problem of accidental opening of the cabinet door 2. The specific content is as follows: The positioning compartment 13 is installed on the lower side of the inner surface of the chassis 1, and the inner surface of the positioning compartment 13 is rotatably connected to the turntable 14, and the turntable 14 is provided with a synchronous opening mechanism; the synchronous opening mechanism includes a connecting rod 15 rotatably connected to the upper surface of the turntable 14, and a rotating rod 16 rotatably connected to the outer end of the connecting rod 15, and the outer surface of the rotating rod 16 is equipped with the shaft for assembling the cabinet door 2, and a sealing ring 17 is connected between the cabinet door 2 and the chassis 1; the chassis 1 and the positioning compartment 13 form an integrated structure, and the positioning compartment 13 forms a rotation centering structure through the turntable 14 and the connecting rod 15, and the connecting rod 15 forms an angle deflection structure with the cabinet door 2 through the rotating rod 16.

[0032] After the cabinet door 2 is unlocked, the motor on the lower side of the positioning compartment 13 installed in the chassis 1 can be started, which drives the offset shaft installed on the turntable 14 to rotate the assembled connecting rod 15. This will drive the rotating rod 16 assembled on the connecting rod 15 to rotate simultaneously, and control the shaft installed on the cabinet door 2 of the rotating rod 16 to drive the cabinet door 2 to be positioned and rotated on the chassis 1, thereby controlling the cabinet door 2 to open automatically. When the cabinet door 2 is closed, it will cooperate with the sealing ring 17 installed in the chassis 1 to improve the sealing and anti-interference effect of closing the cabinet door 2.

[0033] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flip-top type anti-interference detection shielding box, which is provided with a stable chassis (1) and a cabinet door (2) is rotatably connected to the inner surface of the chassis (1); Its features are, include: A rotating shaft (3) rotates on the inner surface of the cabinet door (2), and a gear (4) is installed on the outer surface of the rotating shaft (3), and a rack (5) is meshed on the outer surface of the gear (4), while the rack (5) is provided with a limit engagement mechanism; The positioning chamber (13) is installed on the lower side of the inner surface of the chassis (1), and the inner surface of the positioning chamber (13) is rotatably connected to a turntable (14), and the turntable (14) is provided with a synchronous opening mechanism.

2. The flip-top type anti-interference detection shielding box according to claim 1, characterized in that: The cabinet door (2) forms a positioning and rotating structure with the gear (4) via the rotating shaft (3), and the gear (4) forms a meshing structure with the rack (5), and the rack (5) is set at an equal angle with respect to the middle section of the inner surface of the gear (4).

3. The flip-top type anti-interference detection shielding box according to claim 1, characterized in that: The limiting engagement mechanism includes a limiting strip (6) installed on the outer surface of the rack (5), and a clamping element (7) is installed at the end of the outer surface of the rack (5). A pressing block (8) is installed on the outer surface of the clamping element (7), and a return spring (9) is elastically connected between the pressing block (8) and the cabinet door (2).

4. The flip-top type anti-interference detection shielding box according to claim 3, characterized in that: The rack (5) forms a limiting sliding structure with the cabinet door (2) through the limiting strip (6), and the rack (5), the clamp (7) and the pressing block (8) form an integrated structure. The pressing block (8) forms an elastic structure with the cabinet door (2) through the return spring (9), and the cabinet door (2) forms a limiting engagement structure with the chassis (1) through the clamp (7).

5. A flip-top type anti-interference detection shielding box according to claim 3, characterized in that: The outer surface of the cabinet door (2) is fitted with a handle (10), and the inner surface of the handle (10) is provided with a limiting groove (11), and the inner surface of the limiting groove (11) is nested with an unlocking component (12), and the unlocking component (12) is nested on the inner surface of the rotating shaft (3).

6. A flip-top type anti-interference detection shielding box according to claim 5, characterized in that: The cabinet door (2) and the handle (10) form an integrated structure, and the handle (10) and the unlocking component (12) form a nested rotating structure through the limiting groove (11), and the unlocking component (12) and the rotating shaft (3) form a nested structure.

7. A flip-top type anti-interference detection shielding box according to claim 1, characterized in that: The synchronous opening mechanism includes a connecting rod (15) rotatably connected to the upper surface of the turntable (14), and a rotating rod (16) rotatably connected to the outer end of the connecting rod (15). The outer surface of the rotating rod (16) is equipped with a shaft for assembling the cabinet door (2), and a sealing ring (17) is connected between the cabinet door (2) and the chassis (1). The chassis (1) and the positioning compartment (13) form an integrated structure, and the positioning compartment (13) forms a rotation centering structure with the connecting rod (15) through the turntable (14), and the connecting rod (15) forms an angle deflection structure with the cabinet door (2) through the rotating rod (16).

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