Anti-disassembly structure of ETC device
Patent Information
- Application Number
- CN202520941124.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-14
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-05-14
AI Technical Summary
[0006]本实用新型的目的在于提供一种ETC设备的防拆装结构，以解决上述背景技术中提出的ETC标签因粘接松动导致防拆开关误触发的问题
[0017] This solution adds a cross-shaped baffle and a recessed groove to the existing ETC tag back cover, micro switch, and push rod. The cross-shaped baffle presses against the push rod. When one corner of the adhesive film on the ETC tag back cover becomes loose, the other adhesive films are still in the adhesive state. At this time, the other parts of the cross-shaped baffle are still under pressure, so the push rod is not easy to loosen. Therefore, the micro switch will not be triggered. In this case, the vehicle driver and other users have enough time to reinforce the loosened edge or deal with it in other ways.
Smart Images
Figure CN224668272U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ETC anti-tampering technology, specifically an anti-tampering structure for ETC devices. Background Technology
[0002] ETC anti-tampering refers to the series of technologies and designs employed by the vehicle-mounted ETC tag to prevent users from disassembling or moving the device without authorization, in order to ensure its normal operation and data security.
[0003] Using the tamper-evident switch: An tamper-evident switch, usually a mechanical or electronic device, is installed inside the ETC tag. When the device is installed on the vehicle's windshield, the tamper-evident switch is closed, and the device functions normally. Once the device is removed from its installation position, even a slight movement triggers the tamper-evident switch, and the device immediately detects this and sets its status to abnormal.
[0004] The functions of the anti-tampering mechanism are: Ensuring toll accuracy: Preventing users from arbitrarily removing the ETC tag, avoiding toll errors caused by device relocation or unauthorized use. Ensuring system security: The anti-tampering mechanism prevents malicious damage or tampering with the ETC tag, protecting users' account information and funds.
[0005] Normally, once an ETC tag is affixed to a car, it is not removed. However, the adhesive on the back of the ETC tag can easily become loose at the corners after prolonged use and exposure to sunlight. In this case, the anti-tamper switch on the back of the ETC tag may still be triggered due to the looseness, causing unnecessary damage. Utility Model Content
[0006] The purpose of this utility model is to provide an anti-tampering structure for ETC devices to solve the problem mentioned in the background art of the accidental triggering of the anti-tampering switch due to loose adhesion of ETC tags.
[0007] To achieve the above objectives, this utility model provides the following technical solution: an anti-tampering structure for an ETC device, comprising:
[0008] A central through hole is provided on the back cover of the ETC tag, and a push rod is movably inserted into the central through hole. A micro switch is provided on the rear side of the back cover of the ETC tag, and the position of the push rod corresponds to that of the micro switch.
[0009] The recessed groove is formed on the outer wall of the ETC tag back cover and is in the shape of a cross. The central through hole is located in the middle of the recessed groove. A cross baffle is movably installed in the central through hole, and the middle part of the cross baffle presses on the top rod.
[0010] An adhesive film is disposed on the back of the ETC tag back cover.
[0011] Preferably, the outer rear end of the top rod is integrally formed with an anti-falling top block, which is in contact with the micro switch.
[0012] Preferably, four adhesive sheets are provided, and the four adhesive sheets are located at the four corners of the recessed groove.
[0013] Preferably, the cross baffle is recessed in the middle of the side facing the top rod to form a positioning groove.
[0014] Preferably, the inner diameter of the positioning groove gradually increases from the inside to the outside.
[0015] Preferably, each of the four corners of the cross baffle is fixedly connected with a sliding rod, and the interior of the recessed groove is provided with a sliding groove that matches the sliding rod. The sliding rod passes through the sliding groove and extends into the interior of the ETC tag back cover. One end of the sliding rod located inside the ETC tag back cover is connected to a limit ring.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] This solution adds a cross-shaped baffle and a recessed groove to the existing ETC tag back cover, micro switch, and push rod. The cross-shaped baffle presses against the push rod. When one corner of the adhesive film on the ETC tag back cover becomes loose, the other adhesive films are still in the adhesive state. At this time, the other parts of the cross-shaped baffle are still under pressure, so the push rod is not easy to loosen. Therefore, the micro switch will not be triggered. In this case, the vehicle driver and other users have enough time to reinforce the loosened edge or deal with it in other ways. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the structure of the top rod, the anti-falling top block, and the micro switch of this utility model;
[0020] Figure 3 This is a schematic diagram of the cross baffle and positioning groove of this utility model.
[0021] In the diagram: 1. ETC tag back cover; 2. Recessed groove; 3. Central through hole; 4. Top rod; 5. Anti-falling top block; 6. Micro switch; 7. Cross baffle; 8. Positioning groove; 9. Slide rod; 10. Limiting ring; 11. Slide groove; 12. Adhesive film. Detailed Implementation
[0022] 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.
[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0024] Example 1:
[0025] Please see Figure 1-3 This utility model provides a technical solution: an anti-disassembly structure for an ETC device, comprising: a central through hole 3, a recessed groove 2, and an adhesive film 12 formed on the back cover 1 of the ETC tag;
[0026] A top rod 4 is movably inserted into the central through hole 3. A micro switch 6 is provided on the rear side of the ETC tag back cover 1. The top rod 4 and the micro switch 6 are positioned correspondingly. The recessed groove 2 is formed on the outer wall of the ETC tag back cover 1 and is in the shape of a cross. The central through hole 3 is located in the middle of the recessed groove 2. A cross baffle 7 is movably arranged in the central through hole 3. The middle part of the cross baffle 7 presses against the top rod 4. The adhesive film 12 is provided on the back of the ETC tag back cover 1.
[0027] Analysis of the above content: This solution adds a recessed groove 2 and a sliding groove 11 to the existing molding mold of the ETC tag back cover 1. The micro switch 6 is connected to the circuit of the ETC tag using the existing circuit connection method (existing technology, without modification, not described in detail here). During installation, the cross baffle 7 is pressed into the recessed groove 2, and at the same time, the cross baffle 7 presses against the push rod 4, and the push rod 4 presses against the contact of the micro switch 6. Then, the ETC tag (the assembled complete ETC tag) is pasted to the corresponding position of the car (such as the windshield) through the adhesive film 12. Figure 1As shown, even if one (or two) corners of the adhesive film 12 fall off, the adhesive films 12 in other positions remain bonded. Thus, due to the bonding effect of the adhesive films 12 in other positions, the ETC tag back cover 1 and the windshield clamp the cross baffle 7 tightly, and the cross baffle 7 does not lift up. Under the pressing action of the cross baffle 7, the top rod 4 remains in a pressing state on the micro switch 6, and the micro switch 6 will not be triggered.
[0028] Example 2:
[0029] Please see Figure 1-3 Based on Embodiment 1, this utility model provides a technical solution: the outer rear end of the top rod 4 is integrally formed with an anti-falling top block 5, and the anti-falling top block 5 is in contact with the micro switch 6.
[0030] Analysis of the above content: such as Figure 2 As shown, the anti-detachment top block 5 is set to be cylindrical, and the diameter of the anti-detachment top block 5 is set to be larger than the diameter of the central through hole 3, so that the anti-detachment top block 5 and the top rod 4 will not detach from the central through hole 3. In addition, the diameter of the anti-detachment top block 5 is larger than the diameter of the top rod 4, which can ensure the contact effect with the micro switch 6.
[0031] Example 3:
[0032] Please see Figure 1-3 Based on Embodiment 1, this utility model provides a technical solution: four adhesive films 12 are provided, and the four adhesive films 12 are located at the four corners of the recessed groove 2.
[0033] Analysis of the above content: The four adhesive films 12 use the same material (such as 3M adhesive), such as... Figure 1 As shown, the four adhesive sheets 12 are located at the four corners of the recessed groove 2, and the four adhesive sheets 12 do not contact the cross baffle 7.
[0034] Example 4:
[0035] Please see Figure 1-3 This utility model provides a technical solution based on Embodiment 1: the cross baffle 7 has a recessed center on the side facing the top rod 4 to form a positioning groove 8. The inner diameter of the positioning groove 8 gradually increases from the inside to the outside.
[0036] Analysis of the above content: The positioning groove 8 allows the outer end of the push rod 4 to be positioned and inserted into the positioning groove 8, so that the outer end of the push rod 4 is less likely to slip off from the cross baffle 7, thus providing stable support between the push rod 4 and the cross baffle 7.
[0037] Example 5:
[0038] Please see Figure 1-3Based on Embodiment 1, this utility model provides a technical solution: each of the four corners of the cross baffle 7 is fixedly connected with a sliding rod 9, the recessed groove 2 is provided with a sliding groove 11 that matches the sliding rod 9, the sliding rod 9 passes through the sliding groove 11 and extends into the interior of the ETC tag back cover 1, and one end of the sliding rod 9 located inside the ETC tag back cover 1 is connected to a limiting ring 10.
[0039] Analysis of the above content: The setting of slide bar 9 and limit ring 10 ensures that cross baffle 7 will not detach from ETC tag back cover 1, and the setting of the length of slide bar 9 and limit ring 10 ensures that cross baffle 7 has enough room to move without affecting the internal circuit components of ETC tag.
[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be considered as limiting the scope of the claims.
[0041] 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. An anti-tampering structure for an ETC device, characterized in that, include: A central through hole (3) is provided on the back cover (1) of the ETC tag. A top rod (4) is movably inserted into the central through hole (3). A micro switch (6) is provided on the rear side of the back cover (1) of the ETC tag. The top rod (4) and the micro switch (6) are positioned corresponding to each other. The recessed groove (2) is opened on the outer wall of the ETC tag back shell (1) and the recessed groove (2) is in the shape of a cross. The central through hole (3) is located in the middle of the recessed groove (2). A cross baffle (7) is movably arranged in the central through hole (3). The middle part of the cross baffle (7) presses on the top rod (4). An adhesive film (12) is disposed on the back of the ETC tag back cover (1).
2. The anti-tampering structure for an ETC device according to claim 1, characterized in that: The outer rear end of the top rod (4) is integrally formed with an anti-falling top block (5), which is in contact with the micro switch (6).
3. The anti-tampering structure for an ETC device according to claim 1, characterized in that: Four adhesive films (12) are provided, and the four adhesive films (12) are located at the four corners of the recessed groove (2).
4. The anti-tampering structure for an ETC device according to claim 1, characterized in that: The cross baffle (7) is recessed in the middle of the side facing the top rod (4) to form a positioning groove (8).
5. The anti-tampering structure for an ETC device according to claim 4, characterized in that: The inner diameter of the positioning groove (8) gradually increases from the inside to the outside.
6. The anti-tampering structure for an ETC device according to claim 1, characterized in that: The four corners of the cross baffle (7) are fixedly connected with sliding rods (9). The recessed groove (2) has a sliding groove (11) that matches the sliding rod (9). The sliding rod (9) passes through the sliding groove (11) and extends into the ETC tag back cover (1). One end of the sliding rod (9) inside the ETC tag back cover (1) is connected to a limit ring (10).