CN215883574U - Vehicle collision signal trigger device - Google Patents

Abstract

The utility model provides a vehicle collision signal trigger device which comprises a detection mechanism and a collision mechanism. Wherein, detection mechanism is solid to be installed on the automobile body, can be because of being triggered and export the signal. The collision mechanism comprises a collision frame and an elastic connecting part; the collision frame is connected and installed on the vehicle body through the elastic connecting part and is restrained at a limited position by the elastic connecting part; when the collision frame moves relative to the vehicle body due to external collision, the collision frame can trigger the detection mechanism to act to send out a signal. The vehicle collision signal trigger device adopts the elastic connecting part to install the collision frame of the collision mechanism on the vehicle body, and the collision frame is elastically restrained at the limited position by the limiting structure and other modes, thereby effectively reducing the possibility that the collision frame shakes along with the advancing or vibration of the vehicle body, being beneficial to reducing the abnormal sound generated by the collision mechanism and the false alarm condition caused by the mistaken collision detection mechanism of the collision frame, and improving the service performance of the vehicle collision signal trigger device.

Description

Vehicle collision signal trigger device

Technical Field

The utility model relates to the technical field of vehicle safety, in particular to a vehicle collision signal triggering device.

Background

With the development of unmanned technology, the automatic driving vehicle gradually enters the lives of people. For unmanned vehicles, people have extremely high requirements on the safety of the unmanned vehicles. In addition to real-time monitoring of the environment around the vehicle by using detection devices such as radar and camera, a collision sensing device is required to be arranged at the front and/or rear of the vehicle, so that when an external object collides with the vehicle, a sensor inside the device can generate a collision signal to an Electronic Control Unit (ECU), which is also called a traveling computer or a vehicle-mounted computer, of the vehicle, and the ECU controls a brake actuating mechanism to perform emergency braking, so that the vehicle and pedestrians are protected, and collision injuries and losses are reduced.

For a vehicle with an intelligent auxiliary driving function or a traditional manual driving vehicle, even if a driver exists in the vehicle, when the vehicle collides, the driver may not take necessary operations due to confusion, even misoperation is carried out, and secondary damage may be caused to pedestrians and vehicles. Therefore, there is also a need to install the collision sensing apparatus.

Some current vehicle collision induction system adopt can trigger inductive switch because of the mechanism that external object collided the action, but, the mechanism sets up the structure on the automobile body too simple, receives inertia and vibration influence easily in the vehicle motion process, and rocks by oneself. Under the condition, the mechanism is easy to collide with the inductive switch by mistake due to self shaking, and the mechanism can collide with surrounding parts in the shaking process to generate abnormal sound. Further, since the mechanism is provided outside the front end or the rear end of the vehicle, the connecting portion between the mechanism and the vehicle body is easily corroded and rusted, which in turn causes a problem that the mechanism is difficult to operate at the time of collision, thereby causing the device to fail.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to a vehicle collision signal triggering device to improve the usability of the vehicle collision signal triggering device.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

a vehicle collision signal trigger device comprises a detection mechanism and a collision mechanism, wherein the detection mechanism is fixedly arranged on a vehicle body and can output a signal due to being triggered; the collision mechanism comprises a collision frame and an elastic connecting part; the collision frame is connected to the vehicle body through the elastic connecting part and is restrained at a limited position by the elastic connecting part; and the collision frame can move relative to the vehicle body due to external collision so as to trigger the detection mechanism.

Furthermore, the elastic connecting part and the detection mechanism are fixedly arranged on the vehicle body through a mounting assembly.

Furthermore, the mounting assembly comprises a cross beam, and a bracket and a mounting seat which are arranged on the cross beam;

the elastic connecting part is fixedly arranged on the bracket; the detection mechanism is arranged on the mounting seat.

Furthermore, the bracket is provided with a through hole; the elastic connecting part comprises a rubber sleeve, an inner ring steel sleeve and an outer ring steel sleeve which are respectively arranged on the inner peripheral surface and the outer peripheral surface of the rubber sleeve; the inner ring steel sleeve is fastened on the support through a connecting piece which is arranged in the penetrating hole in a penetrating mode, and the collision frame is fixedly connected on the outer ring steel sleeve.

Furthermore, two brackets are arranged on the cross beam at intervals; each bracket is provided with one elastic connecting part; and the two outer ring steel sleeves are connected with the collision frame.

Furthermore, the mounting seat is arranged between the two brackets; the mounting seat is provided with a clamping hole; the detection mechanism is clamped in the clamping hole.

Furthermore, the bracket is provided with an adjusting hole; a position-adjustable pre-tightening piece is arranged in the adjusting hole; the pre-tightening piece can be adjusted to a position where the collision frame is pressed, and pre-tightening force in the same direction as the self-swinging direction is applied to the collision frame.

Further, the collision frame comprises a collision beam and a connecting frame connected between the collision beam and the elastic connecting part; the collision beam is used for bearing the collision of the external object.

Further, the detection mechanism adopts a travel switch.

Further, relative to one side where the collision cross beam is located, the other side of the collision frame is provided with a jacking portion; the travel switch is used for receiving the trigger of the top pressing part to output a signal.

Compared with the prior art, the utility model has the following advantages:

according to the vehicle collision signal trigger device, the elastic connecting part is adopted to install the collision frame of the collision mechanism on the vehicle body, so that the collision frame is elastically restrained at the limited position, the possibility that the collision frame shakes along with the advancing or vibration of the vehicle body can be effectively reduced, the conditions that the collision mechanism generates abnormal sound and the collision frame shakes to mistakenly collide the detection mechanism are reduced, and the service performance of the vehicle collision signal trigger device is improved.

Meanwhile, in a vehicle collision signal triggering device (hereinafter also referred to as a device for short), an installation assembly is further arranged, the elastic connecting part and the detection mechanism are installed on the installation assembly in advance, and the device is assembled on a vehicle body through the installation assembly, so that the installation is convenient, and the detection mechanism and the collision frame can be adjusted in advance and fixed in position on the installation assembly, so that the accuracy and the stability of the relative position between the detection mechanism and the collision frame are improved, and the stability of the device for acting and sending signals is improved.

In addition, the rubber sleeve with the inner ring steel sleeve and the outer ring steel sleeve is used as the elastic connecting part, and the rubber sleeve can be fixedly arranged on the bracket through the inner ring steel sleeve in the middle of the rubber sleeve and connecting pieces such as a bolt pair and the like; and the collision frame is fixedly arranged on the outer ring steel sleeve of the rubber sleeve, and can swing to a small extent relative to the vehicle body by utilizing the characteristic that the rubber sleeve can be twisted and deformed. Due to the design, the collision frame cannot move due to rust of the connecting part, so that the device fails, the collision frame has a good elastic constraint effect, and misoperation of the collision frame can be effectively prevented.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model, illustrate embodiments of the utility model and together with the description serve to explain the utility model, and the description is given by way of example only and without limitation to the terms of relative positions. In the drawings:

fig. 1 is a schematic overall structure diagram of a vehicle collision signal triggering device according to a first embodiment of the utility model;

FIG. 2 is a schematic structural diagram of a mounting assembly according to a first embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a crash mechanism according to a first embodiment of the present invention;

FIG. 4 is a schematic view of the overall assembly of the detecting mechanism according to the first embodiment of the present invention;

FIG. 5 is a schematic diagram illustrating an operation of the vehicle collision signal triggering device according to the first embodiment of the present invention;

description of reference numerals:

1. installing an assembly; 11. a cross beam; 12. a support; 13. a mounting seat; 14. clamping the hole; 15. a limiting part; 120. penetrating and installing holes; 121. an adjustment hole;

2. a detection mechanism; 21. a travel switch; 22. clamping a seat; 200. a push rod;

3. a collision mechanism; 31. an elastic connection portion; 32. a connecting frame; 33. a jacking portion; 34. a collision beam; 3a, a trigger position;

4. a connecting member; 5. and (4) pre-tightening the piece.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that, if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "back", etc. appear, they are based on the orientation or positional relationship shown in the drawings and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless otherwise specifically limited. For example, the connection may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in conjunction with specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The embodiment relates to a vehicle collision signal trigger device, which can effectively improve the service performance of the vehicle collision signal trigger device.

In general, the vehicle collision signal triggering device includes a detection mechanism and a collision mechanism. Wherein, detection mechanism is solid to be installed on the automobile body, can be because of being triggered and export the signal. The collision mechanism comprises a collision frame and an elastic connecting part; the collision frame is connected and installed on the vehicle body through the elastic connecting part and is restrained at a limited position by the elastic connecting part; when the collision frame moves relative to the vehicle body due to external collision, the detection mechanism can be triggered to act to send out a signal.

Based on the above design concept, an exemplary structure of the vehicle collision signal triggering device of the present embodiment is shown in fig. 1, and mainly includes a mounting assembly 1, a detection mechanism 2 and a collision mechanism 3.

As a device for detecting a collision from the outside of an automobile, the device of the present invention is preferably installed at the front end and/or the rear end of the automobile, based on the case where the collision of the vehicle often occurs at the front or rear of the automobile. Thus, when the vehicle is in motion or in a static state and collides with an external object, the device can be firstly touched to send a signal to an ECU of the vehicle, so that the vehicle can take preventive measures such as automatic braking.

As shown in fig. 1 and fig. 2, since the detection mechanism 2 and the collision mechanism 3 are both required to be fixedly mounted on the vehicle body, in order to facilitate assembly, the device is provided with the mounting assembly 1, and the elastic connection portion 31 and the detection mechanism 2 are both fixedly mounted on the vehicle body through the mounting assembly 1. Set up installation assembly 1 in the device, all pre-installed on installation assembly 1 with elastic connection portion 31 and detection mechanism 2, assemble the device on the automobile body through installation assembly 1, the installation of the device of not only being convenient for, and because detection mechanism 2 and collision frame can be adjusted in advance and fixed position on the installation assembly, do benefit to and promote the accuracy and the degree of stability of relative position between the two to improve the device action and send the stability of signal.

There are many options for the specific design of the mounting assembly 1. Preferably, in the present embodiment, the mounting assembly 1 includes a cross beam 11, and a bracket 12 and a mounting seat 13 provided on the cross beam 11. Wherein, when the cross member 11 is provided at the front or rear of the vehicle, it should be arranged in the vehicle body width direction; when the cross member 11 is provided at the vehicle side portion, it may be arranged in the vehicle body length direction. The following description will be made of a case where the cross member 11 is provided at the front or rear of the vehicle.

Two brackets 12 are provided at intervals on the cross member 11, and preferably, the two brackets 12 are arranged symmetrically with respect to the center of the cross member 11. The cross beam 11 serves as a setting foundation for the bracket 12 and the mounting seat 13, and can also serve as a fixed mounting part for mounting the assembly 1 on a vehicle body; the cross beam 11 can be fixed on the vehicle body by welding, bolt installation and other modes, so as to realize the fixation of the installation assembly 1 on the vehicle body. The elastic connecting portions 31 of the collision mechanism 3 are fixed on the brackets 12, and when the number of the brackets 12 is two, the number of the elastic connecting portions 31 is correspondingly two, and the two elastic connecting portions are respectively fixed on the two brackets 12. The detection mechanism 2 is mounted on the mounting base 13.

The mounting assembly 1 adopts a beam structure, so that the device is conveniently arranged at the front end or the rear end of the vehicle body along the width direction of the vehicle body; the elastic connecting part 31 is installed on the bracket 12, the detection mechanism 2 is installed by the installation seat 13, the collision frame and the detection mechanism 2 can be installed in advance and adjusted in position, and the relative position of the collision frame and the detection mechanism 2 can be kept fixed and reliable. Furthermore, by providing two brackets 12 along the length of the cross member 11, i.e., the width direction of the vehicle body, and correspondingly providing two elastic connecting portions 31 as elastic connecting members, the crash frame is more conveniently provided in a strip shape parallel to the cross member 11 and connected to the mounting assembly 1 through the two elastic connecting portions 31. This not only ensures the reliability of the attachment of the crash frame, but also provides good conditions for the crash frame to be able to form a wide coverage of the end of the vehicle body.

The elastic connection portion 31 may be provided in principle to have elastic constraint performance. For example, a torsion spring can be adopted, one end of the torsion spring is fixedly connected with the mounting assembly 1, and the other end of the torsion spring is fixedly connected with the collision frame; thus, the collision frame can swing relative to the mounting assembly 1; it is also possible to use compression springs to constrain the crash box translationally to the mounting assembly 1. Preferably, in this embodiment, as shown in fig. 3, the bracket 12 is provided with a through hole 120, and the elastic connection portion 31 includes a rubber sleeve, and an inner ring steel sleeve and an outer ring steel sleeve respectively disposed in and on an outer peripheral surface of the rubber sleeve. The inner ring steel sleeve is fastened on the bracket 12 through the connecting piece 4 which is arranged in the penetrating hole 120 in a penetrating way, and the collision frame is fixedly connected on the outer ring steel sleeve of the rubber sleeve.

The rubber sleeve and the inner and outer ring steel sleeves thereof can be constructed into a whole by adopting a rubber vulcanization process, so that the rubber sleeve is embedded between the inner ring steel sleeve and the outer ring steel sleeve. At this time, each bracket 12 is provided with a rubber sleeve; outer ring steel sleeves of the two rubber sleeves are connected with the collision frame.

The rubber sleeve is adopted as the elastic connecting part 31, and can be fixedly arranged on the bracket 12 through the inner ring steel sleeve of the rubber sleeve by utilizing the connecting pieces 4 such as the bolt pair and the like which are arranged in the penetrating hole 120 on the bracket 12 in a penetrating way; and the collision frame is fixedly arranged on the outer ring steel sleeve of the rubber sleeve. The characteristic that the rubber sleeve can be twisted and deformed is utilized, so that the collision frame can swing in a small amplitude relative to the vehicle body. Due to the design, the collision frame cannot move due to rust of the connecting part, so that the device fails, the collision frame has a good elastic constraint effect, and misoperation of the collision frame can be effectively prevented.

At this point, as shown in FIG. 2 in conjunction with FIG. 3, a stop 15 may be formed in the bottom of the bracket 12 in order to provide good restraint and limit the swing of the bumper bracket. When the collision frame swings to a position where the collision frame can touch the detection mechanism 2, the collision frame is limited by the limiting part 15 to reach a limit position, and the collision frame is prevented from swinging too much to damage the detection mechanism 2.

In addition, an adjusting hole 121 can be formed in the support 12, a position-adjustable pre-tightening piece 5 is arranged in the adjusting hole 121, and the pre-tightening piece 5 can be adjusted to a position where the collision frame is pressed against the collision frame, so that pre-tightening force in the same direction as the self-swinging direction of the collision frame is applied to the collision frame. By forming the adjusting hole 121 on the bracket 12 and using the preload member 5 as a component for cooperating with the elastic force constraint of the elastic connecting portion 31 to define the position of the collision frame together, not only the collision frame can be defined at a position where the collision frame can swing to touch the detection mechanism 2 upon collision, but also the preload before the collision frame swings and the gap between the collision frame and the detection mechanism 2 can be adjusted by adjusting the position of the preload member 5. The preload part 5 can be a pin shaft with a fastening nut, and can also be used by adopting a standard bolt pair.

Based on the structural arrangement of the mounting assembly 1, it is preferable that the mounting seat 13 is disposed between the two brackets 12, and a fastening hole 14 may be formed in the mounting seat 13; the detection mechanism 2 is installed in the clamping hole 14 in a clamping manner. Like this, when the collision frame touched detection mechanism 2, detection mechanism 2 atress was more balanced, can ensure that the collision frame is collided and can effectively trigger detection mechanism 2 after the swing and send the signal. The detection mechanism 2 is installed in a clamping mode, and the detection mechanism has the characteristic of convenience in installation.

The detection means 2 may be a switching value detection device such as an inductive switch or a micro switch. In this embodiment, as shown in fig. 4, the detection mechanism 2 employs a direct-acting type stroke switch 21. The travel switch 21 is used as the detection mechanism 2, has the characteristics of mature technology and low cost, has good action stability, and can respond well to the touch of the collision frame to perform on-off action. Meanwhile, a clamping seat 22 is preassembled on the travel switch 21, the clamping seat 22 is matched with the clamping hole 14 in the mounting seat 13, and the travel switch 21 is clamped in the clamping hole 14 through the clamping seat 22.

As also shown in fig. 3 in conjunction with fig. 5, the crash frame of the present embodiment includes a crash cross member 34, and two connecting frames 32 attached to the crash cross member 34, corresponding to the structural arrangement of the mounting assembly 1; the two connecting frames 32 are fixedly connected with the two elastic connecting parts 31 on the cross beam 11 respectively; the collision of the foreign object is received by the collision beam 34. The collision frame is designed into a mode of a collision beam 34 and a connecting frame 32, the connecting frame 32 forms a swing arm, the collision beam 34 covers the width space of the vehicle body to receive collision from the outside, and the collision frame has the characteristics of reasonable structure, simplicity and effectiveness.

Meanwhile, a jacking portion 33 is arranged on the other side of the collision frame relative to the side where the collision cross beam 34 is located; when the collision frame moves relative to the vehicle body, the jacking portion 33 can touch the travel switch 21, and the travel switch 21 is triggered to send a signal. Specifically, two connecting frames 32 are provided on the collision beam 34 corresponding to the two brackets 12 and the two rubber sleeves; based on this, a cross bar can be fixedly arranged between the two connecting frames 32, and the cross bar forms a jacking portion 33. The middle part of the top pressing part 33 is opposite to the push rod 200 of the travel switch 21, when the collision cross beam 34 is collided, the collision frame consisting of the collision cross beam 34, the connecting frame 32 and the top pressing part 33 swings to the triggering position 3a shown in fig. 5, so that the middle part of the top pressing part 33 touches the push rod 200 of the travel switch 21, and the travel switch 21 is triggered to act to send a signal.

The vehicle collision signal trigger device described in this embodiment adopts the elastic connecting portion 31 to install the collision frame of the collision mechanism 3 on the vehicle body, and makes the collision frame be elastically restrained at the limited position, thereby effectively reducing the possibility that the collision frame shakes along with the advancing or vibration of the vehicle body, helping to reduce the false alarm condition caused by the abnormal sound sent by the collision mechanism 3 and the false collision detection mechanism 2, and improving the use performance of the vehicle collision signal trigger device.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. A vehicle collision signal triggering device comprising a detection mechanism (2) and a collision mechanism (3), characterized in that:

the detection mechanism (2) is fixedly arranged on the vehicle body and can output signals when being triggered;

the collision mechanism (3) comprises a collision frame and an elastic connecting part (31);

the collision frame is connected to the vehicle body through the elastic connecting part (31) and is restrained at a limited position by the elastic connecting part (31); and the number of the first and second electrodes,

the collision frame can move relative to the vehicle body due to external collision to trigger the detection mechanism (2).

2. The vehicle collision signal triggering device according to claim 1, characterized in that:

the elastic connecting part (31) and the detection mechanism (2) are fixedly arranged on the vehicle body through a mounting assembly (1).

3. The vehicle collision signal triggering device according to claim 2, characterized in that:

the mounting assembly (1) comprises a cross beam (11), and a bracket (12) and a mounting seat (13) which are arranged on the cross beam (11);

the elastic connecting part (31) is fixedly arranged on the bracket (12);

the detection mechanism (2) is arranged on the mounting seat (13).

4. The vehicle collision signal triggering device according to claim 3, characterized in that:

the bracket (12) is provided with a through hole (120);

the elastic connecting part (31) comprises a rubber sleeve, an inner ring steel sleeve and an outer ring steel sleeve which are respectively arranged on the inner peripheral surface and the outer peripheral surface of the rubber sleeve;

the inner ring steel sleeve is fastened on the support (12) through a connecting piece (4) arranged in the penetrating hole (120) in a penetrating mode, and the collision frame is fixedly connected to the outer ring steel sleeve.

5. The vehicle collision signal triggering device according to claim 4, characterized in that:

the cross beam (11) is provided with two brackets (12) at intervals;

each bracket (12) is provided with one elastic connecting part (31);

and the two outer ring steel sleeves are connected with the collision frame.

6. The vehicle collision signal triggering device according to claim 5, characterized in that:

the mounting seat (13) is arranged between the two brackets (12);

the mounting seat (13) is provided with a clamping hole (14);

the detection mechanism (2) is clamped in the clamping hole (14).

7. The vehicle collision signal triggering device according to any one of claims 4 to 6, characterized in that:

an adjusting hole (121) is formed in the support (12);

a position-adjustable pre-tightening piece (5) is arranged in the adjusting hole (121);

the pre-tightening piece (5) can be adjusted to a position where the collision frame is pressed, and pre-tightening force in the same direction as the self-swinging direction is applied to the collision frame.

8. The vehicle collision signal triggering device according to any one of claims 1 to 6, characterized in that:

the collision frame comprises a collision beam (34) and a connecting frame (32) connected between the collision beam (34) and the elastic connecting part (31);

the collision cross beam (34) is used for receiving the collision of external objects.

9. The vehicle collision signal triggering device according to claim 8, characterized in that:

the detection mechanism (2) adopts a travel switch (21).

10. The vehicle collision signal triggering device according to claim 9, characterized in that:

the other side of the collision frame is provided with a jacking part (33) relative to the side where the collision cross beam (34) is located;

the travel switch (21) is used for receiving the trigger of the jacking part (33) to output a signal.

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