CN213987578U - Anti-dismantling self-destruction device applied to vehicle-mounted unit and vehicle-mounted unit - Google Patents
Anti-dismantling self-destruction device applied to vehicle-mounted unit and vehicle-mounted unit Download PDFInfo
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- CN213987578U CN213987578U CN202022395170.8U CN202022395170U CN213987578U CN 213987578 U CN213987578 U CN 213987578U CN 202022395170 U CN202022395170 U CN 202022395170U CN 213987578 U CN213987578 U CN 213987578U
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Abstract
The utility model provides a be applied to on-vehicle unit prevent tearing open self-destruction device and on-vehicle unit, after on-vehicle unit is dismantled, the second spring promotes the magnet piece and passes through coil winding region, and the coil cuts the magnetic line of force, and the generating current is detected this electric current by the chip that sets up on the circuit board, triggers the self-destruction flow to the self-destruction function of on-vehicle unit has been realized.
Description
Technical Field
The utility model relates to the field of electronic technology, especially, relate to a be applied to on-board unit's anti-tear self-destruction device and on-board unit.
Background
With the popularization of electronic systems ETC for electronic toll collection, on-board units installed on vehicle sides are widely used. At present, 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-proof self-destruction device (such as a detachment-proof push switch) is required to be arranged on the vehicle-mounted unit to detect whether the vehicle-mounted unit is detached or not. 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 at providing a self-destruction device for preventing the vehicle-mounted unit from being disassembled;
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 provides an aspect provides a be applied to on-vehicle unit's anti-tear self-destruction device open, include: the anti-disassembly rod mounting piece 1, the circuit board 2, the anti-disassembly rod 3, the first spring 4, the sleeve 5, the coil 6, the second spring 7 and the magnet block 8; wherein: an accommodating space is formed between the circuit board 2 and the anti-dismounting rod mounting part 1; the anti-dismantling rod mounting piece 1 comprises a clamping groove 101 which is sunken towards the accommodating space, and a first through hole 102 is formed in the clamping groove 101; the sleeve 5 is arranged in the accommodating space and fixed on the circuit board 2, and the sleeve 5 is of a hollow structure; a second through hole 501 is formed in the wall of the sleeve 5, the second through hole 501 is opposite to the first through hole 102, a second spring 7 is arranged at one end of the sleeve 5, one end of the second spring 7 is fixed on the sleeve 5, the other end of the second spring 7 is a free end, and the second spring 7 stretches in the sleeve 5; the coil 6 is wound on the outer wall of the sleeve 5 and is electrically connected with the circuit board 2; the magnet block 8 is arranged in the sleeve 5; the anti-disassembly rod 3 comprises a first blocking piece 301, a connecting rod 302 and a second blocking piece 303 which are connected in sequence, the connecting rod 302 penetrates through the first through hole 102 and the second through hole 501, the first blocking piece 301 is located outside the anti-disassembly rod mounting piece 1, the shape of the first blocking piece 301 is matched with that of the clamping groove 101, the first blocking piece 301 is blocked by the clamping groove 101 and does not enter the accommodating space, the second blocking piece 303 is located in the accommodating space, and the second blocking piece 303 is blocked by the clamping groove 101 and does not separate from the accommodating space; the first spring 4 is sleeved outside the connecting rod 302, the first spring 4 is arranged between the clamping groove 101 and the first blocking piece 301, only deforms between the first blocking piece 301 and the clamping groove 101, and does not enter the accommodating space; when the vehicle-mounted unit is in an installation state, the magnet block 8 moves towards the second spring 7 in the sleeve 5 and presses the second spring 7, the second spring 7 contracts, the first blocking piece 301 is pressed on a vehicle window, the anti-disassembly rod 3 moves towards the sleeve 5, the upper surface of the first blocking piece 301 is flush with the outer surface of the anti-disassembly rod installation piece 1, the second blocking piece 303 extends into the sleeve 5, the first spring 4 contracts, the free end of the second spring 7 presses the magnet block 8, and the anti-disassembly rod 3 blocks the magnet block 8 from moving; when the vehicle-mounted unit is in a detached state, the first spring 4 ejects the detachment prevention rod 3, the second spring 7 ejects the magnet block 8, the magnet block 8 moves in the sleeve 5, and the coil 6 generates current.
Wherein the coil 6 is wound around the outer wall of the sleeve 5 at the end remote from the second spring 7.
Wherein one end of the sleeve 5 comprises a hollow bracket 502 and one end of the second spring 7 is fixed in the hollow bracket 502.
The anti-dismounting rod mounting piece 1 is provided with a first reset hole 103, and the first reset hole 103 and one end, far away from the second spring 7, of the sleeve 5 are correspondingly arranged; when the on-board unit is mounted, the magnet block 8 is pushed toward the second spring 7 by the return lever through the first return hole 103, and presses the second spring 7.
The anti-dismounting rod mounting piece 1 is provided with a second reset hole, and the second reset hole is arranged corresponding to one end, provided with the second spring 7, of the sleeve 5; when the on-board unit is mounted, the magnet block 8 is pulled toward the second spring 7 through the second reset hole by the reset lever, and the second spring 7 is pressed.
Wherein, the device still includes: a pull cord 9 and a knob 10; wherein: one end of a pull rope 9 penetrates through the sleeve 5, one end of a second spring 7 is arranged, the other end of the pull rope 9 is fixedly connected with the magnet block 8, and the other end of the pull rope 9 is wound on a knob 10; the knob 10 is provided on the circuit board 2 and exposed from the tamper bar mounting member 1; when the vehicle-mounted unit is installed, the pull rope 9 is driven to be tightened through the rotary knob 10, the magnet block 8 is pulled to the second spring 7 through the pull rope 9, and the second spring 7 is extruded; after the on-board unit is mounted, the pulling rope 9 is released to a preset length by rotating the knob 10.
The utility model discloses another aspect provides an on-vehicle unit, including foretell anti-tear self-destruction device.
By the above-mentioned the technical scheme provided by the utility model, utilize the utility model provides a be applied to preventing tearing open self-destruction device and the mobile unit of mobile unit, after mobile unit is dismantled, the second spring promotes the magnet piece and passes through the coil winding region, and the coil cuts the magnetic line of force, and the generating current is detected this electric current by the chip that sets up on the circuit board, triggers the self-destruction flow to the self-destruction function of mobile unit has been realized.
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 an anti-detachment self-destruction device applied to an on-board unit provided in an embodiment of the present invention;
fig. 2 is a second cross-sectional view of the tamper self-destruction device applied to the on-board unit according to the embodiment of the present invention;
fig. 3 is a schematic perspective view of an anti-detachment self-destruction device applied to a vehicle-mounted unit according to an embodiment of the present invention;
fig. 4 is a third cross-sectional view of the tamper self-destruction device applied to the on-board unit according to the embodiment of the present invention;
fig. 5 is a fourth cross-sectional view of the tamper self-destruction prevention device applied to the on-board unit according to the embodiment of the present invention;
fig. 6 is an internal schematic view of the anti-detachment self-destruction device applied to the on-board unit according to the 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 6.
Referring to fig. 1 to 6, the embodiment of the present invention provides a be applied to on-vehicle unit's anti-tear self-destruction device, include: the anti-disassembly rod mounting piece 1, the circuit board 2, the anti-disassembly rod 3, the first spring 4, the sleeve 5, the coil 6, the second spring 7 and the magnet block 8; wherein:
an accommodating space is formed between the circuit board 2 and the anti-dismounting rod mounting part 1;
the anti-dismantling rod mounting piece 1 comprises a clamping groove 101 which is sunken towards the accommodating space, and a first through hole 102 is formed in the clamping groove 101;
the sleeve 5 is arranged in the accommodating space and fixed on the circuit board 2, and the sleeve 5 is of a hollow structure;
a second through hole 501 is formed in the wall of the sleeve 5, the second through hole 501 is opposite to the first through hole 102, a second spring 7 is arranged at one end of the sleeve 5, one end of the second spring 7 is fixed on the sleeve 5, the other end of the second spring 7 is a free end, and the second spring 7 stretches in the sleeve 5;
the coil 6 is wound on the outer wall of the sleeve 5 and is electrically connected with the circuit board 2;
the magnet block 8 is arranged in the sleeve 5;
the anti-disassembly rod 3 comprises a first blocking piece 301, a connecting rod 302 and a second blocking piece 303 which are connected in sequence, the connecting rod 302 penetrates through the first through hole 102 and the second through hole 501, the first blocking piece 301 is located outside the anti-disassembly rod mounting piece 1, the shape of the first blocking piece 301 is matched with that of the clamping groove 101, the first blocking piece 301 is blocked by the clamping groove 101 and does not enter the accommodating space, the second blocking piece 303 is located in the accommodating space, and the second blocking piece 303 is blocked by the clamping groove 101 and does not separate from the accommodating space;
the first spring 4 is sleeved outside the connecting rod 302, the first spring 4 is arranged between the clamping groove 101 and the first blocking piece 301, only deforms between the first blocking piece 301 and the clamping groove 101, and does not enter the accommodating space;
when the vehicle-mounted unit is in an installation state, the magnet block 8 moves towards the second spring 7 in the sleeve 5 and presses the second spring 7, the second spring 7 contracts, the first blocking piece 301 is pressed on a vehicle window, the anti-disassembly rod 3 moves towards the sleeve 5, the upper surface of the first blocking piece 301 is flush with the outer surface of the anti-disassembly rod installation piece 1, the second blocking piece 303 extends into the sleeve 5, the first spring 4 contracts, the free end of the second spring 7 presses the magnet block 8, and the anti-disassembly rod 3 blocks the magnet block 8 from moving;
when the vehicle-mounted unit is in a detached state, the first spring 4 ejects the detachment prevention rod 3, the second spring 7 ejects the magnet block 8, the magnet block 8 moves in the sleeve 5, and the coil 6 generates current.
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 engaging groove 101 may be circular or rectangular, and may also be an elongated slot penetrating through the anti-detachment rod mounting member 1, which is not particularly limited in the present invention.
The shapes of the first through hole 102 and the second through hole 501 are matched with the shape of the connecting rod 302, and may be circular or square, which is not limited in the present invention.
As an optional implementation manner of the embodiment of the present invention, the coil 6 is wound on the outer wall of the sleeve 5 away from the end where the second spring 7 is disposed. The coil 6 is wound on the sleeve 5 at a position far away from the second spring 7, so that the speed of the magnet block 8 moving from the second spring 7 to the coil 6 is the maximum, and the effect of generating current by the coil 6 is better. Therefore, it is preferable that the in-vehicle unit is attached such that the removal-preventing bar attachment 1 side where the second spring 7 is located is attached to a high position and the coil 6 is wound to a low position, and the magnet block 8 is accelerated by gravity.
As an optional implementation manner of the embodiment of the present invention, one end of the sleeve 5 includes a hollow bracket 502, and one end of the second spring 7 is fixed in the hollow bracket 502. By arranging the second spring 7 inside the hollow frame 502, space of the sleeve 5 can be saved, resulting in a longer sliding distance of the magnet block 8 and/or a smaller overall product of the on-board unit.
In use, the magnet block 8 can be moved freely in the sleeve 5, as shown in fig. 1, when it is shipped from a factory.
When the installation is needed, firstly, the magnet block 8 is moved towards the second spring 7, and specific modes can include the following modes:
1. the anti-dismounting rod mounting piece 1 is provided with a first reset hole 103, and the first reset hole 103 is arranged corresponding to one end, far away from the second spring 7, of the sleeve 5; when the on-board unit is mounted, the magnet block 8 is pushed toward the second spring 7 by the return lever through the first return hole 103, and presses the second spring 7. Specifically, referring to fig. 4, the magnet block 8 is pushed toward the second spring 7 by the reset lever, and presses the second spring 7, so that the second spring 7 is deformed.
2. The anti-dismounting rod mounting part 1 is provided with a second reset hole, and the second reset hole is arranged corresponding to one end, provided with the second spring 7, of the sleeve 5; when the on-board unit is mounted, the magnet block 8 is pulled toward the second spring 7 through the second reset hole by the reset lever, and the second spring 7 is pressed. Specifically, referring to fig. 5, the magnet block 8 is pulled toward the second spring 7 by the reset lever, and presses the second spring 7, so that the second spring 7 is deformed.
3. The utility model discloses be applied to on-vehicle unit's anti-tear self-destruction device still includes: a pull cord 9 and a knob 10; wherein: one end of a pull rope 9 penetrates through the sleeve 5, one end of a second spring 7 is arranged, the other end of the pull rope 9 is fixedly connected with the magnet block 8, and the other end of the pull rope 9 is wound on a knob 10; the knob 10 is provided on the circuit board 2 and exposed from the tamper bar mounting member 1; when the vehicle-mounted unit is installed, the pull rope 9 is driven to be tightened through the rotary knob 10, the magnet block 8 is pulled to the second spring 7 through the pull rope 9, and the second spring 7 is extruded; after the on-board unit is mounted, the pulling rope 9 is released to a preset length by rotating the knob 10. Specifically, referring to fig. 6, the setting knob 10 and the pull cord 9 will pull the magnet block 8 towards the second spring 7 and press the second spring 7, so that the second spring 7 is deformed. As an optional implementation manner of the embodiment of the present invention, in order to reduce the volume of the anti-detachment self-destruction device, one or more pulleys may be added between the knob 10 and the pull rope 9.
4. The magnet block 8 is attracted toward the second spring 7 by the strong magnet, and the second spring 7 is deformed.
Secondly, the installer mounts the on-board unit on the window surface with the tamper bar 3 entering the sleeve 5 blocking the path of movement of the magnet block 8.
After the installation, the second spring 7 is in a compressed state and pushes the magnet block 8 to abut against the anti-dismantling rod 3, and the magnet block 8 is blocked by the anti-dismantling rod 3 and cannot move continuously.
Once the vehicle-mounted unit is detached from the vehicle window, the first spring 4 can eject the anti-detaching rod 3 outwards, the second spring 7 can eject the magnet block 8 continuously, the magnet block 8 moves in the sleeve 5, the coil 6 cuts magnetic lines of force through the winding area of the coil 6, current is generated, a chip arranged on the circuit board 2 can detect the current, the vehicle-mounted unit is considered to be detached, and a self-destruction process is triggered.
As an optional implementation manner of the embodiment of the present invention, the self-destruction process includes: and deleting the confidential data in the chip. Specifically, when the chip can detect the current, the vehicle-mounted unit is considered to be detached, so that the confidential data is deleted, and the safety of the data in the vehicle-mounted unit is ensured.
If the vehicle-mounted unit needs to be installed again, the installation process needs to be repeatedly executed by related workers, and confidential data needs to be rewritten.
Therefore, utilize the utility model provides a be applied to on-vehicle unit's anti-tear self-destruction device open, after on-vehicle unit is dismantled, the second spring promotes the magnet piece and passes through the coil winding region, and the coil cuts the magnetic line of force, produces electric current, is detected this electric current by the chip that sets up on the circuit board, triggers the self-destruction flow to on-vehicle unit's self-destruction function has been realized.
The utility model discloses another aspect still provides an on-board unit, and this on-board unit includes the self-destruction device of preventing tearing open of above-mentioned figure 1 to figure 6.
Through the utility model discloses an on-vehicle unit is dismantled the back at on-vehicle unit, and the second spring promotes the magnet piece and passes through the coil winding region, and the coil cuts the magnetic line of force, produces electric current, is detected this electric current by the chip that sets up on the circuit board, triggers the self-destruction flow to on-vehicle unit's self-destruction function has been realized.
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 (7)
1. A tamper-evident self-destructive device for use with an on-board unit, comprising: the anti-disassembly device comprises an anti-disassembly rod mounting piece (1), a circuit board (2), an anti-disassembly rod (3), a first spring (4), a sleeve (5), a coil (6), a second spring (7) and a magnet block (8); wherein:
an accommodating space is formed between the circuit board (2) and the anti-dismounting rod mounting piece (1);
the anti-dismantling rod mounting piece (1) comprises a clamping groove (101) which is sunken towards the accommodating space, and a first through hole (102) is formed in the clamping groove (101);
the sleeve (5) is arranged in the accommodating space and fixed on the circuit board (2), and the sleeve (5) is of a hollow structure;
a second through hole (501) is formed in the wall of the sleeve (5), the second through hole (501) is arranged opposite to the first through hole (102), a second spring (7) is arranged at one end of the sleeve (5), one end of the second spring (7) is fixed on the sleeve (5), the other end of the second spring (7) is a free end, and the second spring (7) stretches in the sleeve (5);
the coil (6) is wound on the outer wall of the sleeve (5) and is electrically connected with the circuit board (2);
the magnet block (8) is arranged in the sleeve (5);
the anti-disassembly rod (3) comprises a first blocking piece (301), a connecting rod (302) and a second blocking piece (303) which are connected in sequence, the connecting rod (302) penetrates through the first through hole (102) and the second through hole (501), the first blocking piece (301) is located outside the anti-disassembly rod mounting piece (1), the first blocking piece (301) is matched with the clamping groove (101) in shape, the first blocking piece (301) is blocked by the clamping groove (101) and does not enter the accommodating space, the second blocking piece (303) is located in the accommodating space, and the second blocking piece (303) is blocked by the clamping groove (101) and does not depart from the accommodating space;
the first spring (4) is sleeved outside the connecting rod (302), the first spring (4) is arranged between the clamping groove (101) and the first blocking piece (301), only deforms between the first blocking piece (301) and the clamping groove (101), and does not enter the accommodating space;
when the vehicle-mounted unit is in a mounting state, the magnet block (8) moves towards the second spring (7) in the sleeve (5) and presses the second spring (7), the second spring (7) contracts, the first blocking piece (301) is pressed on a vehicle window, the anti-disassembly rod (3) moves towards the sleeve (5), the upper surface of the first blocking piece (301) is flush with the outer surface of the anti-disassembly rod mounting piece (1), the second blocking piece (303) extends into the sleeve (5), the first spring (4) contracts, the free end of the second spring (7) presses the magnet block (8), and the anti-disassembly rod (3) blocks the magnet block (8) from moving;
when the vehicle-mounted unit is in a detached state, the first spring (4) ejects the detachment prevention rod (3), the second spring (7) ejects the magnet block (8), the magnet block (8) moves in the sleeve (5), and the coil (6) generates current.
2. The tamper-evident self-destruct device applied to a vehicle-mounted unit according to claim 1, characterized in that said coil (6) is wound on the outer wall of said sleeve (5) at the end remote from said second spring (7).
3. The tamper-evident self-destruct device applied to a vehicle-mounted unit according to claim 1, characterized in that one end of said sleeve (5) comprises a hollow bracket (502), one end of said second spring (7) being fixed inside said hollow bracket (502).
4. The tamper-evident self-destruct device applied to an on-board unit according to claim 1,
the anti-dismounting rod mounting piece (1) is provided with a first reset hole (103), and the first reset hole (103) is arranged corresponding to one end, far away from the second spring (7), of the sleeve (5);
when the vehicle-mounted unit is installed, the magnet block (8) is pushed to the second spring (7) through the first reset hole (103) by the reset rod, and the second spring (7) is pressed.
5. The tamper-evident self-destruct device applied to an on-board unit according to claim 1,
the anti-dismounting rod mounting piece (1) is provided with a second reset hole, and the second reset hole is arranged corresponding to one end, provided with the second spring (7), of the sleeve (5);
when the vehicle-mounted unit is installed, the magnet block (8) is pulled towards the second spring (7) through the second reset hole by the reset rod, and the second spring (7) is pressed.
6. The tamper-evident self-destruct device applied to an on-board unit according to claim 1, further comprising: a pull rope (9) and a knob (10); wherein:
one end of the pull rope (9) penetrates through the sleeve (5) and is provided with one end of the second spring (7) which is fixedly connected with the magnet block (8), and the other end of the pull rope (9) is wound on the knob (10);
the knob (10) is arranged on the circuit board (2) and is exposed from the anti-disassembly rod mounting piece (1);
when the vehicle-mounted unit is installed, the pull rope (9) is driven to be tightened by rotating the knob (10), and the magnet block (8) is pulled to the second spring (7) by the pull rope (9) and the second spring (7) is extruded;
and after the vehicle-mounted unit is installed, the pull rope (9) is released to a preset length by rotating the knob (10).
7. An on-board unit characterized by comprising a tamper-evident self-destructive device according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022395170.8U CN213987578U (en) | 2020-10-23 | 2020-10-23 | Anti-dismantling self-destruction device applied to vehicle-mounted unit and vehicle-mounted unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022395170.8U CN213987578U (en) | 2020-10-23 | 2020-10-23 | Anti-dismantling self-destruction device applied to vehicle-mounted unit and vehicle-mounted unit |
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| Publication Number | Publication Date |
|---|---|
| CN213987578U true CN213987578U (en) | 2021-08-17 |
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|---|---|---|---|
| CN202022395170.8U Active CN213987578U (en) | 2020-10-23 | 2020-10-23 | Anti-dismantling self-destruction device applied to vehicle-mounted unit and vehicle-mounted unit |
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| Country | Link |
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| CN (1) | CN213987578U (en) |
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