SIM card cover anti-lost structure
By incorporating a detachable cord and a waterproof pad between the SIM card cover and the outer casing, and utilizing an internal thread design and combination screws, the problem of the SIM card cover easily falling off has been solved. This has resulted in improved structural reliability, ease of operation, and overall aesthetics, while also providing waterproof functionality.
Patent Information
- Application Number
- CN202520003427.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-02
AI Technical Summary
The SIM card cover structure of existing communication base stations is prone to falling off or being lost, which affects the user experience and results in poor overall appearance.
An anti-drop cord and a waterproof gasket are installed between the SIM card cover and the outer casing. The internal thread design ensures that the anti-drop screw remains on the card cover after disassembly, and the anti-drop cord restricts the card cover from falling off. The internal thread height of the screw hole in the outer casing is less than the through hole height of the screw in the card cover. The combination of the screw and the anti-drop cord design achieves a secure fixation.
It effectively prevents the SIM card cover and screws from being lost, improves the user experience and maintains the overall appearance of the product, while also being waterproof.
Smart Images

Figure CN223599849U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a SIM card cover anti-lost structure. BACKGROUND
[0002] The SIM card cover structure used by the existing communication base station does not have an anti-falling rope or directly has a screw on the appearance surface to increase the anti-falling rope, which affects the overall appearance of the product; the screw is not anti-falling and is easy to lose, resulting in poor customer experience, so a structure with reliable structure and strong overall appearance is developed. SUMMARY
[0003] In view of the problems in the prior art, the utility model aims to provide a SIM card cover anti-lost structure.
[0004] The SIM card cover anti-lost structure is characterized in that a card cover screw hole is arranged on the SIM card cover, the card cover screw hole is provided with internal threads, an outer shell screw hole is arranged on the outer shell, the outer shell screw hole is provided with internal threads, and the anti-falling screw passes through the card cover screw hole and the outer shell screw hole to cooperate to realize the fixation of the SIM card cover and the outer shell.
[0005] The SIM card cover anti-lost structure is characterized in that the outer shell is provided with a combination screw, one end of the anti-falling rope is sleeved on any combination screw, and the anti-falling rope is pressed between the combination screw and the outer shell when the combination screw is screwed with the outer shell; the other end of the anti-falling rope is sleeved on any anti-falling screw, and the anti-falling rope is pressed between the anti-falling screw and the SIM card cover when the anti-falling screw is screwed with the card cover screw hole.
[0006] The SIM card cover anti-lost structure is characterized in that a waterproof gasket is arranged between the SIM card cover and the outer shell.
[0007] The SIM card cover anti-lost structure is characterized in that the waterproof gasket is bonded to the outer shell.
[0008] The utility model limits the SIM card cover through the anti-falling rope, avoids the loss of the SIM card cover, sets the height of the internal threads of the outer shell screw hole to be less than the height of the internal screw through hole of the SIM card cover, so that the anti-falling screw can still be retained on the SIM card cover after completely separating from the outer shell screw hole, and the anti-falling screw is not lost; the waterproof gasket is arranged to ensure the waterproof performance of the communication base station. BRIEF DESCRIPTION OF DRAWINGS
[0009] Figure 1The utility model discloses an explosion structure schematic diagram;
[0010] Figure 2 The utility model discloses an assembled schematic diagram;
[0011] Figure 3 The utility model discloses a SIM card cover removal schematic diagram;
[0012] Figure 4 The utility model discloses a partial sectional structure schematic diagram;
[0013] Figure 5 The utility model discloses a SIM card cover removal schematic diagram;
[0014] In the drawing: SIM card cover 1, anti -drop screw 2, combination screw 3, anti -drop rope 4, waterproof gasket 5, shell 6, cover screw hole 7, shell screw hole 8, SIM card slot 9. Specific implementation
[0015] The utility model will be further explained below in conjunction with the drawings of specification:
[0016] A kind of SIM card cover anti -loss structure, the SIM card slot 9 of communication base station is provided with SIM card cover 1, SIM card cover 1 is fixed on shell 6 by screw.The utility model is provided with cover screw hole 7 on SIM card cover 1, cover screw hole is provided with internal thread, shell 6 is provided with shell screw hole 8, shell screw hole 8 is also provided with internal thread, anti -drop screw 2 passes through cover screw hole 7 and shell screw hole 8 cooperation realizes the fixation of SIM card cover 1 and shell 6;And the height of internal thread of shell screw hole 8 is less than the height of SIM card cover internal screw via hole, so after disassembling anti -drop screw 2 and making it completely separate from shell screw hole 8, still can be retained on SIM card cover 1, avoid anti -drop screw 2 drop and lose.
[0017] Combination screw 3 is provided on shell 6, one end of anti -drop rope 4 is sleeved on any combination screw 3, when combination screw 3 is screwed with shell 6, anti -drop rope 4 is pressed between combination screw 3 and shell 6;The other end of anti -drop rope 4 is sleeved on any anti -drop screw 2, when anti -drop screw 2 is screwed with cover screw hole 7, anti -drop rope 4 is pressed between anti -drop screw 2 and SIM card cover 1, so that the anti -drop screw 2 of SIM card cover 1 is separated from shell screw hole 8, SIM card cover 1 will be limited under the action of anti -drop rope 4, avoid SIM card cover 1 drop and lose;The design structure is ingenious, and the overall appearance of product is not affected.
[0018] Waterproof gasket 5 can be provided between SIM card cover 1 and shell 6, and the waterproof gasket 5 is bonded to the shell, thereby achieving a waterproof effect.
[0019] When assembling, the waterproof gasket is fixed on the shell by double-sided adhesive, the anti-falling rope is fixed on one of the anti-falling screws, all the anti-falling screws are locked on the SIM card cover, and then the SIM card cover is fixed on the shell by screws. When disassembling, the anti-falling screws are loosened, and the anti-falling screws cannot fall off from the SIM card cover because the height of the thread in the screw hole of the shell is smaller than the height of the screw via hole in the SIM card cover, as shown in L1>L2 in the specification Figure 4 , the anti-falling screws cannot fall off from the SIM card cover, and the SIM card cover is carried on the anti-falling rope and cannot be separated.
[0020] The utility model can effectively prevent the situation that the screw and the SIM card cover are lost when the SIM card cover is opened, the structure is reliable, operation is convenient, and user experience is improved.
Claims
1. A SIM card cover anti-lost structure, a SIM card cover is arranged on a SIM card slot of a communication base station, and the SIM card cover is fixed on a shell through a screw, characterized in that The SIM card cover is provided with a cover screw hole, the cover screw hole is provided with an internal thread, the shell is provided with a shell screw hole, the shell screw hole is provided with an internal thread, and the anti-drop screw passes through the cover screw hole and the shell screw hole to fix the SIM card cover and the shell.
2. The SIM card anti-lost structure according to claim 1, characterized in that The shell is provided with a combination screw, one end of the anti-drop rope is sleeved on any combination screw, and the anti-drop rope is pressed between the combination screw and the shell when the combination screw is screwed with the shell; the other end of the anti-drop rope is sleeved on any anti-drop screw, and the anti-drop rope is pressed between the anti-drop screw and the SIM card cover when the anti-drop screw is screwed with the cover screw hole.
3. The SIM card anti-lost structure according to claim 1, characterized in that A waterproof gasket is arranged between the SIM card cover and the shell.
4. The SIM card anti-loss structure according to claim 3, characterized in that The waterproof gasket is bonded to the shell.