Sim card anti-disassembly structure of a rope lock
Patent Information
- Application Number
- CN202522509311.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-11-26
AI Technical Summary
[0003]盖子一般是通过防拆螺丝直接固定在外壳上,这使得取下盖子时需要撬件进行辅助撬出,并且防拆螺丝需要完全拧出,这对于盖子的装卸而言较为不便
[0009] The technical advantages achieved by this utility model are as follows: The above structure can achieve tamper-proof fixing of the cover to the shell and the bottom cover to the shell through a single tamper-proof screw, saving screw connection points. At the same time, when removing the cover, the tamper-proof screw does not need to be completely unscrewed, effectively reducing the chance of losing the tamper-proof screw. The beveled design ensures that after the tamper-proof screw is screwed in, the upper end of the cover is limited and fixed, and the lower end of the cover is pushed inward, preventing the lower end of the cover from becoming loose or prying outward, thus ensuring the reliability of the cover installation. At the same time, after the tamper-proof screw is unscrewed, the cover will naturally fall off outward due to the beveled surface, without the need for the user to pry it open.
Smart Images

Figure CN224844333U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rope lock structure technology, and in particular to a SIM card anti-tampering structure for a rope lock. Background Technology
[0002] Existing rope locks generally include a shell, lock case, rope, lock head, and locking mechanism. As rope locks become increasingly electronic, they now have the ability to interact with the cloud; therefore, their shells typically have a SIM card slot. The SIM card slot is usually fixed inside the shell, and its opening is generally sealed with a silicone cover, which is usually secured with clips or screws. To prevent users from illegally replacing or removing the SIM card, some manufacturers use ultrasonic welding or potting to seal the slot, or use tamper-proof screws on the cover.
[0003] The cover is usually fixed directly to the outer shell with anti-tamper screws, which means that a pry tool is needed to pry it out when removing the cover, and the anti-tamper screws need to be completely unscrewed, which makes it inconvenient to install and remove the cover.
[0004] Therefore, there is an urgent need for a SIM card anti-tampering structure for rope locks that can solve one or more of the above problems. Utility Model Content
[0005] To address one or more problems existing in the prior art, this utility model provides a SIM card anti-tampering structure for a rope lock. The technical solution adopted by this utility model to solve the above problems is: a SIM card anti-tampering structure for a rope lock, the outer shell of the rope lock comprising: a housing and a bottom cover, the bottom cover being snapped onto the opening of the housing, a SIM card holder being installed inside the housing, and a slot corresponding to the spatial position of the card holder being provided on the side of the housing, the slot being for inserting a SIM card, and a card cover being inserted into the slot; The front of the slot is provided with a fastening groove, and the edge of the opening of the housing is provided with a through hole communicating with the fastening groove. The cover is provided with a connecting flange that inserts into the fastening groove. The connecting flange is provided with a locking hole corresponding to the through hole. The screw passes through the bottom cover and is inserted into the through hole and the locking hole. The screw is connected to the locking hole, and the screw fixes the housing, the bottom cover and the cover together.
[0006] In some embodiments, the connecting flange is disposed at the upper end of the cover, the side of the fastening groove facing the through hole is an inclined surface, the inclined surface slopes upward from the side close to the cover, and when the screw is screwed into the connecting flange, the lower end of the cover pushes towards the inside of the groove.
[0007] Furthermore, the side of the connecting flange opposite to the inclined surface is the mating surface, which is parallel to or inclined in the same direction as the inclined surface.
[0008] In some embodiments, two of each of the fastening grooves and the connecting flanges are provided and correspond one-to-one.
[0009] The technical advantages achieved by this utility model are as follows: The above structure can achieve tamper-proof fixing of the cover to the shell and the bottom cover to the shell through a single tamper-proof screw, saving screw connection points. At the same time, when removing the cover, the tamper-proof screw does not need to be completely unscrewed, effectively reducing the chance of losing the tamper-proof screw. The beveled design ensures that after the tamper-proof screw is screwed in, the upper end of the cover is limited and fixed, and the lower end of the cover is pushed inward, preventing the lower end of the cover from becoming loose or prying outward, thus ensuring the reliability of the cover installation. At the same time, after the tamper-proof screw is unscrewed, the cover will naturally fall off outward due to the beveled surface, without the need for the user to pry it open. Attached Figure Description
[0010] Figure 1 This is an exploded view of the present invention; Figure 2 This is a schematic diagram of the slot of this utility model; Figure 3 This is a schematic diagram of the card cover of this utility model; Figure 4 This is a cross-sectional view of the present invention.
[0011] In the diagram, 1 is the housing; 10 is the slot; 100 is the snap-fit groove; 101 is the through hole; 102 is the bevel; 11 is the card holder; 2 is the bottom cover; 3 is the card cover; 30 is the connecting flange; 300 is the lock hole; 301 is the mating surface; and 4 is the screw. Detailed Implementation
[0012] To make the above-mentioned objectives, features, and advantages of this utility model more readily understood, the specific embodiments of this utility model are 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.
[0013] like Figures 1-4As shown, this utility model discloses a SIM card anti-tampering structure for a rope lock. The outer shell of the rope lock includes: a shell 1 and a bottom cover 2. The bottom cover 2 is fastened and installed at the opening of the shell 1. A SIM card holder 11 is installed inside the shell 1. A slot 10 corresponding to the spatial position of the card holder 11 is provided on the side of the shell 1. The slot 10 is used for inserting a SIM card. A card cover 3 is inserted into the slot 10. The slot 10 has a fastening groove 100 on the side facing the cover 3, and the edge of the opening of the housing 1 has a through hole 101 communicating with the fastening groove 100. The cover 3 is provided with a connecting flange 30 that inserts into the fastening groove 100. There are two fastening grooves 100 and two connecting flanges 30, which correspond one to one. The connecting flange 30 is provided with a locking hole 300 corresponding to the through hole 101. The screw 4 passes through the bottom cover 2 and is inserted into the through hole 101 and the locking hole 300. The screw 4 is connected to the locking hole 300. The screw 4 fixes the housing 1, the bottom cover 2 and the cover 3 together, so that when the cover 3 is removed, a part of the screw 4 must be unscrewed first. The screw 4 can be designed as an anti-tamper screw.
[0014] Specifically, in combination Figure 3 , Figure 4 As shown, the connecting flange 30 is located at the upper end of the cover 3. The side of the fastening groove 100 facing the through hole 101 is an inclined surface 102. The inclined surface 102 slopes upward from the side closest to the cover 3. When the screw 4 is screwed into the connecting flange 30, the lower end of the cover 3 pushes inward toward the groove 10. Further, the side of the connecting flange 30 opposite to the inclined surface 102 is a mating surface 301. The mating surface 301 is parallel to or inclined in the same direction as the inclined surface 102. The inclined surface design allows the lower end of the cover 3 to push inward when the screw 4 is tightened against the connecting flange 30, thereby ensuring the secureness of the cover 3 at the groove 10. At the same time, the inclined surface guides the cover 3 to slide naturally without screw connection. The screw 4 is threaded or interference-fitted with the locking hole 300.
[0015] In summary, the above structure can securely fasten the cover to the housing and the bottom cover to the housing using a single anti-tamper screw, saving screw connection points. Furthermore, the anti-tamper screw does not need to be fully unscrewed when removing the cover, effectively reducing the chance of loss. The beveled design ensures that after the anti-tamper screw is screwed in, the upper end of the cover is fixed, while the lower end pushes inward, preventing the lower end from loosening or prying outward, thus ensuring reliable cover installation. Additionally, after the anti-tamper screw is unscrewed, the cover will naturally detach outward due to the beveled surface, eliminating the need for user prying.
[0016] The embodiments described above are merely illustrative of one or more implementations of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this 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 should be determined by the appended claims.
Claims
1. A SIM card tamper-proof structure for a rope lock, characterized in that, The outer casing of the rope lock includes a housing and a bottom cover. The bottom cover is fastened to the opening of the housing. A SIM card slot is installed inside the housing. The side of the housing is provided with a slot corresponding to the spatial position of the slot. The slot is used for inserting a SIM card. A card cover is inserted into the slot. One side of the slot is provided with a fastening groove, and the edge of the opening of the housing is provided with a through hole communicating with the fastening groove. The cover is provided with a connecting flange that inserts into the fastening groove. The connecting flange is provided with a locking hole corresponding to the through hole. The screw passes through the bottom cover and is inserted into the through hole and the locking hole. The screw is connected to the locking hole, and the screw fixes the housing, the bottom cover and the cover together.
2. The SIM card anti-tamper structure of the rope lock according to claim 1, characterized in that, The connecting flange is located at the upper end of the cover. The side of the fastening groove facing the through hole is an inclined surface. The inclined surface slopes upward from the side closest to the cover. When the screw is screwed into the connecting flange, the lower end of the cover pushes towards the inside of the groove.
3. The SIM card anti-tamper structure of the rope lock according to claim 2, characterized in that, The side of the connecting flange opposite to the inclined surface is the mating surface, which is parallel to or inclined in the same direction as the inclined surface.
4. The SIM card anti-tamper structure of the rope lock according to claim 1, characterized in that, Both the fastening groove and the connecting flange are provided in two pairs, and they correspond one-to-one.