CN212556063U - Anti-dismounting device applied to vehicle-mounted unit and vehicle-mounted unit - Google Patents
Anti-dismounting device applied to vehicle-mounted unit and vehicle-mounted unit Download PDFInfo
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- CN212556063U CN212556063U CN202021921559.5U CN202021921559U CN212556063U CN 212556063 U CN212556063 U CN 212556063U CN 202021921559 U CN202021921559 U CN 202021921559U CN 212556063 U CN212556063 U CN 212556063U
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Abstract
The utility model provides a be applied to on-vehicle unit's anti-dismounting device and on-vehicle unit, after on-vehicle unit is dismantled, the electro-magnet push rod prevents to prevent that the pole is dismantled down, can't be once more with the illegal installation return of on-vehicle unit, has realized on-vehicle unit's the function of preventing tearing open.
Description
Technical Field
The utility model relates to the field of electronic technology, especially, relate to a be applied to anti-disassembly device and the mobile unit of mobile unit.
Background
With the popularization of electronic systems ETC for electronic toll collection, on-board units installed on vehicle sides are widely used. In order to avoid the problem caused by the fact that the vehicle-mounted unit is detached from the window and then is mounted on another vehicle, a detachment prevention device (such as a detachment prevention push switch) is required to be arranged on the vehicle-mounted unit to detect whether the vehicle-mounted unit is detached. Specifically, the existing on-board unit is usually powered by a battery, a chip of the on-board unit is connected with the battery and a tamper switch, respectively, and when the on-board unit is correctly installed, the tamper switch is pressed down, and when the on-board unit is detached, the tamper switch bounces, so that the chip can record the state of the switch, and the detachment of the on-board unit is detected through the bouncing of the switch. However, since the battery may be damaged or run out of power, or in the absence of the battery, in the absence of power, the chip of the on-board unit cannot detect whether the on-board unit is detached, and if the on-board unit is detached, swiped over, and reinstalled onto the vehicle access window upon power failure, the on-board unit still cannot detect whether the on-board unit has been detached during the power failure because the removal prevention switch is pressed again after reinstallation, at which time the battery is immediately powered on or replaced. Therefore, a new technology is needed to solve the problem that the vehicle-mounted unit cannot detect whether the unit is detached during power failure.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems.
The utility model mainly aims to provide an anti-dismantling device applied to a vehicle-mounted unit;
another object of the present invention is to provide an on-board unit.
In order to achieve the above object, the technical solution of the present invention is specifically realized as follows:
the utility model discloses an aspect provides a be applied to on-vehicle unit's anti-tear device open, include: the anti-disassembly device comprises an anti-disassembly rod mounting piece 1, a circuit board 2, a push switch 3, an anti-disassembly rod 4, a spring 5 and an electromagnet push rod 6; wherein: an accommodating space is formed between the circuit board 2 and the anti-dismounting rod mounting part 1; the push switch 3 is arranged in the accommodating space and fixed on the circuit board 2 to be electrically connected with the circuit board 2; the anti-dismantling rod mounting piece 1 comprises a clamping groove 101 which is sunken towards the accommodating space, and a mounting through hole is arranged in the clamping groove 101 and corresponds to the push switch 3; the anti-disassembly rod 4 comprises a blocking plate 401, a connecting rod 402 and a pressing piece 403 which are sequentially connected, the connecting rod 402 penetrates through the installation through hole, the blocking plate 401 is located outside the anti-disassembly rod installation part 1, the blocking plate 401 is matched with the clamping groove 101 in shape, the blocking plate 401 is blocked by the clamping groove 101 and does not enter the accommodating space, the pressing piece 403 is located in the accommodating space, and the pressing piece 403 is blocked by the clamping groove 101 and does not break away from the accommodating space; the spring 5 is sleeved outside the connecting rod 402, the spring 5 is arranged between the clamping groove 101 and the blocking plate 401, only deforms between the blocking plate 401 and the clamping groove 101, and does not enter the accommodating space; the electromagnet push rod 6 is arranged in the accommodating space, is fixed on the circuit board 2 and is electrically connected with the circuit board 2, and a movable iron core of the electromagnet push rod 6 extends out and is positioned between the pressing piece 403 and the press switch 3 in the non-installation state of the vehicle-mounted unit; in the installation state of the vehicle-mounted unit, the movable iron core of the electromagnet push rod 6 is retracted and avoids a space between the pressing piece 403 and the pressing switch 3, the anti-dismantling rod 4 moves towards the direction of the pressing switch 3, the pressing piece 403 is pressed on the pressing switch 3, the blocking plate 401 is pressed on a vehicle window, the upper surface of the blocking plate 401 is flush with the outer surface of the anti-dismantling rod installation piece 1, and the spring 5 is in a retracted state; after the on-board unit is detached, the spring 5 ejects the detachment prevention lever 4, and the movable iron core of the electromagnet push rod 6 extends out and is positioned between the pressing piece 403 and the push switch 3.
The utility model discloses another aspect provides an on-board unit, be applied to the anti-disassembly device of on-board unit including the aforesaid.
By the foregoing the technical scheme the utility model provides a can see out, utilize the utility model provides a be applied to on-vehicle unit's anti-tear device and on-vehicle unit, after on-vehicle unit is dismantled, the electro-magnet push rod prevents to prevent that the tear-open bar is pressed, can't be once more with the illegal installation return of on-vehicle unit, realized on-vehicle unit's the function of preventing tearing open.
Furthermore, the safety of the data of the vehicle-mounted unit is protected by deleting the confidential data when the power is on again.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a first cross-sectional view of a detachment prevention device applied to an on-board unit according to an embodiment of the present invention;
fig. 2 is a second cross-sectional view of the detachment prevention device applied to the on-board unit according to the embodiment of the present invention;
fig. 3 is an internal schematic view of a detachment prevention device applied to an on-board unit according to an embodiment of the present invention;
fig. 4 is a schematic perspective view of an anti-detachment device applied to an on-board unit according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or quantity or location.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Embodiments of the present invention will be described in further detail with reference to fig. 1 to 4.
Referring to fig. 1 to 4, the embodiment of the present invention provides a be applied to tamper-evident device of on-board unit, include: the anti-disassembly device comprises an anti-disassembly rod mounting piece 1, a circuit board 2, a push switch 3, an anti-disassembly rod 4, a spring 5 and an electromagnet push rod 6; wherein:
the method comprises the following steps: the anti-disassembly device comprises an anti-disassembly rod mounting piece 1, a circuit board 2, a push switch 3, an anti-disassembly rod 4, a spring 5 and an electromagnet push rod 6; wherein:
an accommodating space is formed between the circuit board 2 and the anti-dismounting rod mounting part 1;
the push switch 3 is arranged in the accommodating space and fixed on the circuit board 2 to be electrically connected with the circuit board 2;
the anti-dismantling rod mounting piece 1 comprises a clamping groove 101 which is sunken towards the accommodating space, and a mounting through hole is arranged in the clamping groove 101 and corresponds to the push switch 3;
the anti-disassembly rod 4 comprises a blocking plate 401, a connecting rod 402 and a pressing piece 403 which are sequentially connected, the connecting rod 402 penetrates through the installation through hole, the blocking plate 401 is located outside the anti-disassembly rod installation part 1, the blocking plate 401 is matched with the clamping groove 101 in shape, the blocking plate 401 is blocked by the clamping groove 101 and does not enter the accommodating space, the pressing piece 403 is located in the accommodating space, and the pressing piece 403 is blocked by the clamping groove 101 and does not break away from the accommodating space;
the spring 5 is sleeved outside the connecting rod 402, the spring 5 is arranged between the clamping groove 101 and the blocking plate 401, only deforms between the blocking plate 401 and the clamping groove 101, and does not enter the accommodating space;
the electromagnet push rod 6 is arranged in the accommodating space, is fixed on the circuit board 2 and is electrically connected with the circuit board 2, and a movable iron core of the electromagnet push rod 6 extends out and is positioned between the pressing piece 403 and the press switch 3 in the non-installation state of the vehicle-mounted unit;
in the installation state of the vehicle-mounted unit, the movable iron core of the electromagnet push rod 6 is retracted and avoids a space between the pressing piece 403 and the pressing switch 3, the anti-dismantling rod 4 moves towards the direction of the pressing switch 3, the pressing piece 403 is pressed on the pressing switch 3, the blocking plate 401 is pressed on a vehicle window, the upper surface of the blocking plate 401 is flush with the outer surface of the anti-dismantling rod installation piece 1, and the spring 5 is in a retracted state;
after the on-board unit is detached, the spring 5 ejects the detachment prevention lever 4, and the movable iron core of the electromagnet push rod 6 extends out and is positioned between the pressing piece 403 and the push switch 3.
Specifically, in the utility model, the anti-dismantling rod mounting member 1 can be a rear shell of the vehicle-mounted unit, and is integrally clamped with the circuit board 2 to form a shell of the vehicle-mounted unit, and the circuit board 2 is provided with a film or a LENS; or an independent bracket structure which is fixedly clamped with the rear shell of the vehicle-mounted unit; the on-board unit may further include a front case, which is not particularly limited in the present invention.
If the tamper bar mounting 1 is a rear shell, an adhesive, for example an adhesive, can be provided on the tamper bar mounting 1, by means of which the on-board unit can be fixed to the vehicle window.
The shape of the locking groove 101 may be circular or rectangular, and may also be an elongated groove penetrating through the anti-detachment rod mounting member 1 as shown in fig. 4, which is not limited in the present invention.
The shape of the mounting through hole and the connecting rod 402 are matched, and may be circular or square, which is not limited in the present invention.
In the using process, the factory state can be as shown in fig. 1, and the vehicle-mounted unit is not powered on, and the moving iron core of the electromagnet push rod 6 is blocked between the pressing piece 403 and the push switch 3; the blocking plate 401 is higher than the outer surface of the tamper bar mounting member 1.
When the vehicle-mounted unit needs to be installed, the vehicle-mounted unit is electrified, the movable iron core is retracted after the electromagnet push rod 6 is electrified, the installer installs the vehicle-mounted unit on the surface of a vehicle window, the anti-dismounting rod 4 is pressed on the push-type switch 3, and the push-type switch is triggered to be in a first state of being closed or disconnected.
After the installation is finished, the vehicle-mounted unit is powered off, the electromagnet push rod 6 is powered off to push out the movable iron core, the movable iron core can be abutted to the anti-dismantling rod 4, and the movable iron core is blocked by the anti-dismantling rod 4 and cannot be pushed out continuously.
Once the vehicle-mounted unit is detached from the vehicle window, the spring 5 can eject the anti-detachment rod 4 outwards to trigger the press-type switch to be in a second open or closed state, the state is different from the first state, the movable iron core of the electromagnet push rod 6 can be continuously pushed out to be blocked between the anti-detachment rod 4 and the press-type switch 3, so that the anti-detachment rod 4 cannot be pressed again, and the press-type switch 3 maintains the second state, so that the vehicle-mounted unit is detected to be detached in the subsequent detection process of the state of the press-type switch 3. Therefore, the in-vehicle unit cannot be illegally installed back.
As an optional implementation manner of the embodiment of the present invention, after the on-board unit is detached, when the power is turned on again, the chip disposed on the circuit board 2 detects that the push switch 3 is triggered to the second state, and the confidential data in the chip is deleted. Specifically, since the push switch 3 maintains the second state, when the power is turned on again, the chip can detect that the push switch 3 is in the detached state, so that the confidential data is deleted, and the security of the data inside the on-board unit is ensured.
If the vehicle-mounted unit needs to be installed again, the installation process needs to be repeatedly executed after relevant workers power on the vehicle-mounted unit, and secret-related data needs to be written again.
Therefore, utilize the utility model provides a be applied to on-vehicle unit's anti-disassembly device and on-vehicle unit, after on-vehicle unit is dismantled, the electro-magnet push rod prevents to prevent that the pole is prevented tearing open by pressing, can't be once more with the illegal installation of on-vehicle unit go back, has realized on-vehicle unit's anti-disassembly function. Furthermore, the safety of the data of the vehicle-mounted unit is protected by deleting the confidential data when the power is on again.
Another aspect of the present invention is to provide an on-board unit, which includes the above-mentioned anti-detachment device applied to the on-board unit of fig. 1 to 4.
Therefore, utilize the utility model provides an on-board unit, after on-board unit is dismantled, the electro-magnet push rod prevents to prevent tearing open the pole and is pressed, can't be once more with the illegal installation return of on-board unit, has realized on-board unit's the function of preventing tearing open. Furthermore, the safety of the data of the vehicle-mounted unit is protected by deleting the confidential data when the power is on again.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. An anti-detachment device applied to an on-board unit, comprising: the anti-disassembly device comprises an anti-disassembly rod mounting piece (1), a circuit board (2), a push switch (3), an anti-disassembly rod (4), a spring (5) and an electromagnet push rod (6); wherein:
an accommodating space is formed between the circuit board (2) and the anti-dismounting rod mounting piece (1);
the push switch (3) is arranged in the accommodating space and is fixed on the circuit board (2) to be electrically connected with the circuit board (2);
the anti-dismantling rod mounting piece (1) comprises a clamping groove (101) which is sunken towards the accommodating space, and a mounting through hole is arranged in the clamping groove (101) and corresponds to the push type switch (3);
the anti-disassembly rod (4) comprises a blocking plate (401), a connecting rod (402) and a pressing piece (403) which are connected in sequence, the connecting rod (402) penetrates through the installation through hole, the blocking plate (401) is located outside the anti-disassembly rod installation part (1), the blocking plate (401) is matched with the clamping groove (101) in shape, the blocking plate (401) is blocked by the clamping groove (101) and cannot enter the accommodating space, the pressing piece (403) is located in the accommodating space, and the pressing piece (403) is blocked by the clamping groove (101) and cannot be separated from the accommodating space;
the spring (5) is sleeved outside the connecting rod (402), the spring (5) is arranged between the clamping groove (101) and the blocking plate (401), only deforms between the blocking plate (401) and the clamping groove (101), and does not enter the accommodating space;
the electromagnet push rod (6) is arranged in the accommodating space, is fixed on the circuit board (2) and is electrically connected with the circuit board (2), and a movable iron core of the electromagnet push rod (6) extends out and is positioned between the pressing piece (403) and the press type switch (3) in the non-installation state of the vehicle-mounted unit;
in the installation state of the vehicle-mounted unit, a movable iron core of the electromagnet push rod (6) retracts and avoids a space between the pressing piece (403) and the pressing switch (3), the anti-dismantling rod (4) moves towards the pressing switch (3), the pressing piece (403) is pressed on the pressing switch (3), the blocking plate (401) is pressed on a vehicle window, the upper surface of the blocking plate (401) is flush with the outer surface of the anti-dismantling rod installation piece (1), and the spring (5) is in a retracted state;
after the vehicle-mounted unit is detached, the spring (5) ejects the anti-detachment rod (4), and a movable iron core of the electromagnet push rod (6) extends out and is positioned between the pressing piece (403) and the push switch (3).
2. An on-board unit characterized by comprising a tamper evident device as claimed in claim 1 applied to an on-board unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021921559.5U CN212556063U (en) | 2020-09-04 | 2020-09-04 | Anti-dismounting device applied to vehicle-mounted unit and vehicle-mounted unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021921559.5U CN212556063U (en) | 2020-09-04 | 2020-09-04 | Anti-dismounting device applied to vehicle-mounted unit and vehicle-mounted unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212556063U true CN212556063U (en) | 2021-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021921559.5U Active CN212556063U (en) | 2020-09-04 | 2020-09-04 | Anti-dismounting device applied to vehicle-mounted unit and vehicle-mounted unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212556063U (en) |
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- 2020-09-04 CN CN202021921559.5U patent/CN212556063U/en active Active
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