CN214874556U - Anti-disassembly structure for on-board unit - Google Patents

Abstract

The utility model relates to a disassembly-proof structure for a vehicle-mounted unit, which is arranged between the vehicle-mounted unit and a front windshield and comprises a disassembly-proof guide rod and a disassembly-proof trigger button; the anti-disassembly guide rod is arranged on the front windshield; prevent tearing open trigger button protrusion set up in on-vehicle unit with the relative one side that sets up of plantago windshield, and with prevent tearing open the guide arm cooperation, and on-vehicle unit install in when the plantago windshield with prevent tearing open guide arm elastic butt. This a prevent tearing open structure for on-vehicle unit is through preventing tearing open from triggering the button and setting up preventing tearing open guide arm elasticity butt on the windscreen of plantago from the one side convex that on-vehicle unit and the relative setting of windscreen, when this on-vehicle unit was demolishd, the accessible was prevented tearing open and is triggered the button and trigger and prevent tearing open the function to can reach safer the protection of preventing tearing open.

Description

Anti-disassembly structure for on-board unit

Technical Field

The utility model relates to an intelligent transportation field, more specifically say, relate to a prevent tearing open structure for on-vehicle unit.

Background

Most of the prior front-loading and rear-loading intelligent traffic vehicle-mounted units (OBU modules) are directly adhered and fixed at the front windshield of a vehicle by using back adhesive. The on-board unit does not usually have a tamper-evident function, so that a safer tamper-evident protection cannot be achieved.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in providing a prevent tearing open structure for on-vehicle unit.

The utility model provides a technical scheme that its technical problem adopted is: the anti-disassembly structure for the vehicle-mounted unit is arranged between the vehicle-mounted unit and a front windshield and comprises an anti-disassembly guide rod and an anti-disassembly trigger button; the anti-disassembly guide rod is arranged on the front windshield; prevent tearing open trigger button protrusion set up in on-vehicle unit with the relative one side that sets up of plantago windshield, and with prevent tearing open the guide arm cooperation, and on-vehicle unit install in when the plantago windshield with prevent tearing open guide arm elastic butt.

Preferably, an anti-disassembly circuit is arranged in the vehicle-mounted unit, and the anti-disassembly trigger key is connected with the anti-disassembly circuit.

Preferably, the anti-dismounting structure further comprises a bracket arranged on the front windshield for the vehicle-mounted unit to be mounted in a sliding manner;

the anti-disassembly guide rod is arranged on the support and penetrates out of the support to be in contact with the front windshield.

Preferably, the bracket is provided with a positioning boss for installing and positioning the anti-disassembly guide rod;

the positioning boss is provided with a positioning hole for the anti-dismantling guide rod to penetrate through and two ends of the positioning hole are communicated with each other.

Preferably, the positioning boss is provided with a guide structure for the anti-disassembly trigger key to slide to the anti-disassembly guide rod.

Preferably, the guide structure is a guide inclined surface which is arranged on the positioning boss and is inclined along the sliding installation direction of the vehicle-mounted unit.

Preferably, the support includes the support body, set up in on the support body in order to give the direction when on-board unit slidable mounting direction guide subassembly and with on-board unit can dismantle the coupling assembling of being connected.

Preferably, the guide assembly comprises a guide chute arranged on the bracket body and arranged along the sliding direction of the vehicle-mounted unit; the vehicle-mounted unit is provided with a guide sliding block matched with the guide sliding groove;

and/or the connecting assembly comprises a buckle arranged on the bracket body; and the vehicle-mounted unit is provided with a clamping table matched with the buckle.

Preferably, the anti-disassembly guide rod comprises a main body part, a first contact part arranged at one end of the main body part and contacted with the anti-disassembly trigger key, and a second contact part arranged at the other end of the main body part and contacted with the front windshield.

Preferably, the on-board unit comprises a bottom shell and an upper cover matched with the bottom shell;

the anti-disassembly trigger button penetrates out of the bottom shell.

Implement the utility model discloses a prevent tearing open structure for on-vehicle unit has following beneficial effect: this a prevent tearing open structure for on-vehicle unit is through preventing tearing open from triggering the button and setting up preventing tearing open guide arm elasticity butt on the windscreen of plantago from the one side convex that on-vehicle unit and the relative setting of windscreen, when this on-vehicle unit was demolishd, the accessible was prevented tearing open and is triggered the button and trigger and prevent tearing open the function to can reach safer the protection of preventing tearing open.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

FIG. 1 is a schematic view of a tamper-evident structure for an on-board unit according to some embodiments of the present invention;

FIG. 2 is a schematic view of the detachment prevention structure for the on-board unit shown in FIG. 1, together with an exploded structure of the on-board unit and a front windshield;

FIG. 3 is a schematic structural view of an on-board unit for use in the detachment prevention structure of the on-board unit shown in FIG. 1;

FIG. 4 is a schematic structural view of a bracket for the detachment prevention structure of the on-board unit shown in FIG. 2;

FIG. 5 is a sectional view showing a use state of a detachment preventing structure for the in-vehicle unit shown in FIG. 1;

FIG. 6 is a sectional view in another direction showing a use state of the detachment preventing structure for the in-vehicle unit shown in FIG. 1;

FIG. 7 is a schematic structural view of a tamper evident guide bar in the tamper evident structure for the on-board unit shown in FIG. 5;

fig. 8 is a circuit diagram of a tamper circuit for the tamper structure of the on-board unit shown in fig. 5.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 and 2 show some preferred embodiments of the tamper-evident structure for on-board units of the present invention. The anti-disassembly structure for the vehicle-mounted unit can be used for preventing the vehicle-mounted unit from being disassembled. When the on-board unit is removed, the anti-removal function can be triggered, so that safer anti-removal protection can be achieved.

Fig. 3 shows an on-board unit 20 to which the detachment prevention structure for an on-board unit of the present invention is applied. The on-board unit 20 may include a housing 21, a tamper-evident activation button 22, and a circuit board 23. The housing 21 may include a bottom case 21a and an upper cover 21b engaged with the bottom case 21 a; the bottom case 21a and the top cover 21b are detachably connected, and an accommodating cavity is formed inside for accommodating the circuit board 23. The anti-detachment trigger button 22 may be protruded from a surface of the on-board unit 20 opposite to the front windshield, and the anti-detachment trigger button 22 may protrude from the bottom case 21a and may be connected to the circuit board 23. In some embodiments, the on-board unit 20 includes a tamper circuit, which can be disposed on the circuit board 23, and the tamper triggering button 22 can be connected to the tamper circuit.

In some embodiments, the on-board unit 20 may be provided with a guide slider 211, and the guide slider 211 may be located on the bottom case 21a and protrude toward the bottom case 21 a. In some embodiments, the guiding slider 211 has a bar shape, and the cross section thereof may have an inverted L shape. In some embodiments, the number of the guide sliders 211 may be multiple, specifically, in some embodiments, the number of the guide sliders 211 may be four, the four guide sliders 211 may be divided into two groups, the two groups of the guide sliders 211 may be spaced apart, and each group of the guide sliders 211 may include two guide sliders 211 arranged side by side. Of course, it is understood that in other embodiments, the guide slider 211 may be omitted, and a guide sliding slot may be provided on the on-board unit 20, instead of the guide slider 211. In some embodiments, a clamping platform 212 may be further disposed on the on-board unit 20, the clamping platform 212 may be disposed between the two sets of guiding sliders 211 and near one end of the on-board unit 20, the clamping platform 212 may protrude from the bottom case 21a, and in some embodiments, the clamping platform 212 may be in a strip shape. Of course, it is understood that in other embodiments, the card platform 212 may not be limited to a bar shape.

As shown in fig. 1 and 2, in some embodiments, the anti-detachment structure for the on-board unit may include a bracket 10, where the bracket 10 is detachably disposed on the front windshield 30, may be used for slidably mounting the on-board unit 20, and may be detachably connected to the on-board unit 20.

Further, as shown in fig. 4, in some embodiments, the bracket 10 may include a bracket body 11, a guide assembly 12, and a connecting assembly 13. The bracket body 11 is detachably mounted on the front windshield 30, and can be used for mounting the guide assembly 12 and the connecting assembly 13. In some embodiments, the guiding component 12 can be disposed on the bracket body 11 to guide the vehicle-mounted unit 20 during sliding installation. The connecting assembly 13 can be disposed on the bracket body 11 and can be used for detachably connecting with the on-board unit 20.

Further, in some embodiments, the bracket body 11 is substantially rectangular, but it is understood that in other embodiments, the bracket body 11 may not be limited to being rectangular. The bracket body 11 and the front windshield 30 can be detachably connected by arranging an adhesive member 40. In some embodiments, the adhesive member 40 can be a double-sided adhesive tape, which can be adhered between the bracket body 11 and the front windshield 30. In some embodiments, the holder body 11 may include a bottom wall 111, a first sidewall 112, and a second sidewall 113. The bottom wall 111 may be rectangular plate-shaped, the number of the first side walls 112 may be two, the two first side walls 112 may be disposed on two opposite sides of the bottom wall 111, and the first side walls 112 may be long side walls. The number of the second sidewalls 113 is two, and the two second sidewalls 113 are disposed at two ends of the bottom wall 111, are located between the two first sidewalls 112, and are respectively connected to the two first sidewalls 112. The bottom wall 111, the first side wall 112 and the third side wall 113 enclose an accommodating cavity for accommodating a part of the on-board unit 20. In some embodiments, the bracket body 11 is provided with an opening 1131, and the opening 1131 may be provided on one of the second sidewalls 113, and the opening may be used for sliding in the guiding slider 211 on the on-board unit 20. In some embodiments, the rack body 11 is provided with an operation opening 1132, the operation opening 1132 may be located on the other second side wall 113, and the operation opening 1132 may be used for allowing the user to detach the on-board unit 20 from the rack 10, specifically, when detaching the on-board unit 20, a finger of the user may be placed at the operation opening 1132, and then the on-board unit 20 may be detached from the rack 10.

Further, in some embodiments, the guiding assembly 12 may include a guiding chute 121, and the guiding chute 121 may be disposed adjacent to the first side wall 112 and may be disposed along the length direction of the first side wall 112, i.e., the direction in which the on-board unit 20 slides. Specifically, in some embodiments, a protrusion 1111 may be disposed on the bottom wall 111, the protrusion 1111 may protrude toward the inner side of the bracket body 11, the protrusion 1111 may have a strip shape, and the length direction of the protrusion 1111 is parallel to the length direction of the first sidewall 112. The guiding sliding groove 121 may be disposed on the sidewall of the boss 1111 and may be disposed along the length direction of the boss 1111. The two bosses 1111 may be disposed at intervals along the width direction of the bottom wall 111, and may be disposed corresponding to the two sets of guiding sliders 211, so that the guiding sliders 211 slide into the guiding sliding groove 121, and cooperate with the guiding sliding groove 121 to slidably guide the on-board unit 20. It is understood that in other embodiments, when the on-board unit 20 is provided with the guide sliding groove 121, the guide assembly 12 may include a guide slider 211, the guide slider 211 may be disposed along the sliding direction of the on-board unit 20, may be formed of the projection 1111, and may cooperate with the guide sliding groove 121 to slidably guide the on-board unit 20. In some embodiments, the guide slider 211 and the guide chute 121 are engaged with each other to fix the on-board unit 20 and the bracket 10 in the up-down and front-back directions.

In some embodiments, the connecting component 13 can be disposed on the bottom wall 111, between the two bosses 1111, and can be disposed near an end of the bottom wall 11 away from the opening 1131. In some embodiments, the connection assembly 13 may include a snap, which may be a floating snap. The buckle may include a buckle body 131, and the buckle body 131 may be disposed at a predetermined angle with respect to the bottom wall 111. In some embodiments, the set angle may be an acute angle. In some embodiments, the latch body 131 may have a flat plate shape, and one end of the latch body 131 may be connected to the bottom wall 111, and the other end may be extended toward the direction that the vehicle-mounted unit 20 slides into the bracket 10, i.e., inclined away from the opening 1131, so as to enhance the elasticity of the latch body 131 to facilitate the engagement with the card platform 212. In some embodiments, the end of the latch body 131 away from the bottom wall 111 can be provided with a step 132, and the step 132 can be engaged with the latch 212.

Further, in some embodiments, the bracket 10 may also include a stop structure 14. The limiting structure 14 may be disposed on the bracket body 11 and may be used to limit the on-board unit 20. In some embodiments, the limiting structure 14 may include a limiting rib 141, the limiting rib 141 may be disposed on a side of the bottom wall 111 and the protruding platform 1111 opposite to the bottom wall 111, and the limiting rib 141 on the side of the bottom wall 111 and the protruding platform opposite to the bottom wall 111 may be disposed opposite to each other and may cooperate with each other to limit the position of the guiding slider 211. In some embodiments, the limiting rib 141 may be an elongated rib, and may be a triangular rib, although it is understood that in other embodiments, the limiting rib 141 may not be limited to being an elongated rib. The limiting rib 141 is not limited to be disposed on the bottom wall 111 and the side of the boss 1111 opposite to the bottom wall 111, and may be disposed only on the bottom wall 111 or only on the side of the boss 1111 opposite to the bottom wall 111. In some embodiments, the limiting rib 141 can prevent the in-vehicle unit 20 from being loosened and abnormal noise caused by tolerance accumulation, and meanwhile, the sliding friction force cannot be increased, so that the installation convenience is ensured.

As shown in fig. 5-7, the tamper structure may include tamper guides 16 and a tamper activation button 22. The anti-detachment guide bar 16 may be disposed on the front windshield and may cooperate with the anti-detachment trigger button 22, and elastically abut against the anti-detachment trigger button 22 when the on-board unit 20 is mounted on the front windshield 30. Further, in some embodiments, the tamper evident guide bar 16 may be mounted to the bracket 10 and may extend out of the bracket 10 into contact with the front windshield 30. In some embodiments, the tamper evident guide bar 16 may include a body portion 161, a first contact portion 162, and a second contact portion 163. The main body 161 may be in a cylindrical shape, and the first contact portion 162 may be disposed at one end of the main body 161 and contact the anti-tamper trigger button 22. The second contact portion 163 can be disposed at the other end of the main body 161, and can penetrate out of the bracket 10 to contact with the front windshield 30. In some embodiments, the travel of the anti-detachment trigger button 22 inside the on-board unit 20 can be lengthened by contacting the anti-detachment guide bar 16 with the front windshield 30, which corresponds to the fact that the on-board unit 20 is in direct contact with the front windshield during the anti-detachment process, so that the anti-detachment function can be triggered regardless of whether the on-board unit 20 is detached or the bracket 10 and the on-board unit 20 are detached together.

In some embodiments, the bracket 10 may be provided with a positioning boss 15, and specifically, the positioning boss 15 may be provided on the bottom wall of the bracket body 11 and may protrude toward the inner side of the bracket body 11, so as to be used for installing and positioning the anti-detachment guide bar 16. In some embodiments, the positioning boss 15 may be provided with a positioning hole 151, and the positioning hole 151 may be a through structure with two ends, and may be cylindrical, and may be used for the anti-disassembly guide rod 16 to pass through. In some embodiments, the length of the positioning hole 151 may be smaller than the length of the tamper-evident guide bar 16, so that both ends of the tamper-evident guide bar 16 are protruded from the positioning hole 151. In some embodiments, the radial dimension of the positioning hole 151 may be smaller than the radial dimension of the first contact portion 162 to prevent the detachment prevention guide 16 from being removed from the positioning hole 151. In some embodiments, a guiding structure 152 may be disposed on the positioning boss 15, and the guiding structure 152 may be used for sliding the tamper evident key 22 to the tamper proof guide bar 16. In some embodiments, the guiding structure 152 may include a guiding slope, which may be disposed on the positioning boss 15 and may be disposed obliquely along a direction in which the on-board unit 20 slides into the bracket 10, so that the anti-detachment triggering button 22 of the on-board unit 20 slides into the anti-detachment guide bar 16 smoothly. It is understood that in other embodiments, the guiding structure 152 may not be limited to a guiding ramp, and in other embodiments, the guiding structure 152 may be omitted.

When the anti-disassembly structure for the vehicle-mounted unit is used, the anti-disassembly guide rod 16 can be inserted into the positioning hole 151 and is pressed, buckled and fixed. The bracket 10 is adhesively secured to the front windshield 30 with an adhesive member 40, such as double-sided tape or glue. The guide slider 211 of the on-board unit 20 slides into the guide chute 121 from the opening 1131, the on-board unit 20 is slid to the middle of the bracket 10, the on-board unit 20 is matched and limited by the guide rib 141, when the on-board unit 20 slides to the end point, the clamping platform 212 on the on-board unit 20 is pressed on the step 132 on the buckle and is matched and fixed with the buckle, and thus the left-right direction fixation of the on-board unit 20 and the bracket is realized. While the on-board unit 20 slides, the anti-detachment trigger button 22 on the on-board unit 20 slides along the guiding inclined plane until the anti-detachment guide rod 16 elastically abuts against the anti-detachment guide rod 16.

When the on-board unit 20 needs to be removed, the on-board unit 20 can be removed from the rack 10 using a tool from the access opening 1132. The on-board unit 20 can be reinstalled after being disassembled, and is convenient to repair.

When the on-board unit 20 is removed from the bracket 10 or the on-board unit 20 is directly removed from the front windshield of the vehicle, the anti-trigger button 22 is ejected from the anti-detachment guide bar 16 by an external force and triggers the anti-detachment circuit, which can be shown in fig. 8, to emit an alarm signal.

This a prevent tearing open structure for on-vehicle unit has following beneficial effect:

1. compared with the traditional direct rubberizing fixing mode, the glass fixing device does not need larger installation force perpendicular to glass. The vehicle-mounted unit 20 is installed in a sliding mode, and the problem that glass which is not completely fixed can be jacked up if large installation force is applied when fixing glue of the front windshield and the vehicle body of the whole vehicle is not cured can be solved.

2. Compared with the traditional direct rubberizing fixing mode, the installation force does not need to have strict requirements and pressure maintaining requirements, and the installation convenience can be improved.

3. Compared with the traditional direct rubberizing fixing mode, the host factory can choose to deliver the support 10 to a downstream glass supplier for installation in advance, the installation of the vehicle-mounted unit 20 in the whole vehicle is convenient, the support 10 can realize positioning, and a positioning jig does not need to be designed and manufactured.

4. Whether the on-board unit 20 is removed or the stand 10 and the on-board unit 20 are removed together, the tamper-proof function is triggered, thereby achieving safer tamper-proof protection.

5. Compared with the traditional direct adhesive tape sticking fixing mode, the vehicle-mounted unit 20 can be conveniently and independently detached and can be repeatedly installed without replacing a double-faced adhesive tape, and the convenience of maintenance can be improved.

It is to be understood that the foregoing examples merely represent preferred embodiments of the present invention, and that the description thereof is more specific and detailed, but not intended to limit the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (10)

1. An anti-disassembly structure for a vehicle-mounted unit is arranged between the vehicle-mounted unit (20) and a front windshield (30), and is characterized by comprising an anti-disassembly guide rod (16) and an anti-disassembly trigger key (22); the anti-disassembly guide rod (16) is arranged on the front windshield (30); prevent tearing open trigger button (22) protrusion set up in on-vehicle unit (20) with the relative one side that sets up of plantago windshield (30), and with prevent tearing open guide arm (16) cooperation, and on-vehicle unit (20) install in when plantago windshield (30) with prevent tearing open guide arm (16) elastic butt.

2. The detachment prevention structure for the on-board unit according to claim 1, characterized in that a detachment prevention circuit is provided in the on-board unit (20), and the detachment prevention trigger button (22) is connected to the detachment prevention circuit.

3. The detachment prevention structure for an in-vehicle unit according to claim 1, further comprising a bracket (10) provided on the front windshield (30) for slidably mounting the in-vehicle unit (20);

the anti-disassembly guide rod (16) is arranged on the support (10) and penetrates out of the support (10) to be in contact with the front windshield (30).

4. The detachment prevention structure for a vehicle-mounted unit according to claim 3, characterized in that a positioning boss (15) for mounting and positioning the detachment prevention guide bar (16) is provided on the bracket (10);

and the positioning boss (15) is provided with a positioning hole (151) through which the anti-disassembly guide rod (16) penetrates and two ends of which are communicated.

5. The detachment prevention structure for a vehicle-mounted unit according to claim 4, wherein a guide structure (152) for the detachment prevention trigger button (22) to slide to the detachment prevention guide bar (16) is provided on the positioning boss (15).

6. The detachment prevention structure for the in-vehicle unit according to claim 5, characterized in that the guide structure (152) is a guide slope provided on the positioning boss (15) obliquely in a sliding mounting direction of the in-vehicle unit (20).

7. The detachment prevention structure for the on-board unit according to claim 3, characterized in that the bracket (10) includes a bracket body (11), a guide assembly (12) provided on the bracket body (11) to guide the on-board unit (20) when slidably mounted, and a connection assembly (13) detachably connected to the on-board unit (20).

8. The detachment prevention structure for the on-board unit according to claim 7, characterized in that the guide assembly (12) includes a guide chute provided on the bracket body (11) and provided in a sliding direction of the on-board unit (20); the vehicle-mounted unit (20) is provided with a guide sliding block matched with the guide sliding groove;

and/or the connecting component (13) comprises a buckle arranged on the bracket body (11); and a clamping table matched with the buckle is arranged on the vehicle-mounted unit (20).

9. The detachment prevention structure for an in-vehicle unit according to claim 1, wherein the detachment prevention guide bar (16) includes a main body portion (161), a first contact portion (162) provided at one end of the main body portion (161) to contact the detachment prevention trigger button (22), and a second contact portion (163) provided at the other end of the main body portion (161) to contact the front windshield (30).

10. The detachment prevention structure for an on-board unit according to claim 1, characterized in that the on-board unit (20) includes a bottom case (21a) and an upper cover (21b) engaged with the bottom case (21 a);

the anti-disassembly trigger key (22) penetrates out of the bottom shell (21 a).

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