CN211075814U - A collision detection mechanism and unmanned vehicle for unmanned vehicle - Google Patents

A collision detection mechanism and unmanned vehicle for unmanned vehicle Download PDF

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Publication number
CN211075814U
CN211075814U CN201921936966.0U CN201921936966U CN211075814U CN 211075814 U CN211075814 U CN 211075814U CN 201921936966 U CN201921936966 U CN 201921936966U CN 211075814 U CN211075814 U CN 211075814U
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China
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clamping plate
unmanned vehicle
contact
hinge
plate
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CN201921936966.0U
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Chinese (zh)
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信韧
廖青海
刘明
王鲁佳
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Zibo Jinde Construction Development Co ltd
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Shenzhen Yiqing Innovation Technology Co ltd
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Abstract

The utility model relates to a collision detection mechanism for an unmanned vehicle and the unmanned vehicle, the collision detection mechanism for the unmanned vehicle comprises a trigger, the trigger comprises a first clamping plate, a second clamping plate, a first contact, a second contact and an elastic piece; the first clamping plate and the second clamping plate are oppositely arranged at intervals, the first contact is arranged on one side of the first clamping plate facing the second clamping plate, the second contact is arranged on one side of the second clamping plate facing the first clamping plate, and the second contact is oppositely arranged with the first contact; the elastic piece sets up between first splint and second splint, and the both ends of elastic piece can respectively with first splint and second splint elasticity butt. Above-mentioned collision detection mechanism of unmanned car, when the impact of the barrier that first splint received is greater than the elasticity that the elastic component provided first splint, first splint overcome the elasticity of elastic component and are close to the second splint to make first contact and second contact, and then the trigger is triggered, good reliability.

Description

A collision detection mechanism and unmanned vehicle for unmanned vehicle
Technical Field
The utility model relates to an unmanned vehicle technical field especially relates to a collision detection mechanism and unmanned car for unmanned car.
Background
With the development of intelligent technology, unmanned vehicles are beginning to be developed and applied. In order to avoid the obstacle encountered by the unmanned vehicle during the driving process of the unmanned vehicle, a sensor for detecting the obstacle needs to be installed on the unmanned vehicle so that the unmanned vehicle can avoid the obstacle.
However, automatic driving technology has been developed, so many accidents caused by sensor failure or human error occur, and therefore, a scram device with high reliability, high sensitivity and high response speed is required to avoid such accidents.
At present, ultrasonic radars are generally adopted as the last line of defense for sensor failure. Ultrasonic radars are often used around passenger cars, and the main materials of ultrasonic sensors are piezoelectric crystals (electrostriction) and ferronickel-aluminum alloy (magnetostriction). Examples of electrostrictive materials include lead zirconate titanate (PZT). The ultrasonic sensor composed of piezoelectric crystals is a reversible sensor which can convert electric energy into mechanical oscillation to generate ultrasonic waves, and can also convert the electric energy into the electric energy when receiving the ultrasonic waves, so that the ultrasonic sensor can be divided into a transmitter or a receiver. It has the features of high frequency, short wavelength, less diffraction, high directivity, directional propagation, etc. However, the ultrasonic radar has the disadvantages that the action distance is more than 30cm, objects within 30cm cannot be accurately detected, the detection width is limited, objects which are too high and too low cannot be effectively judged, and in addition, the ultrasonic radar also reacts to small and light objects such as weeds on the road and the like, so the reliability of the ultrasonic radar is poor.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is necessary to provide a collision detection mechanism for an unmanned vehicle and an unmanned vehicle, which solve the problems of the conventional technology.
A collision detection mechanism for an unmanned vehicle comprises a trigger, wherein the trigger comprises a first clamping plate, a second clamping plate, a first contact, a second contact and an elastic piece; the first clamping plate and the second clamping plate are oppositely arranged at intervals, the first contact is arranged on one side of the first clamping plate, which faces the second clamping plate, the second contact is arranged on one side of the second clamping plate, which faces the first clamping plate, and the second contact is oppositely arranged with the first contact; the elastic component is arranged between the first clamping plate and the second clamping plate, and two ends of the elastic component can be elastically abutted to the first clamping plate and the second clamping plate respectively.
In one embodiment, the clamping device further comprises a shell, and the shell is attached to the side, facing away from the second clamping plate, of the first clamping plate.
In one embodiment, the elastic member is a coil spring, and the coil spring is disposed around the first contact and the second contact.
In one embodiment, a first annular groove is formed in one side, facing the second clamping plate, of the first clamping plate, a second annular groove is formed in one side, facing the first clamping plate, of the second clamping plate, and two ends of the spiral spring are accommodated in the first annular groove and the second annular groove respectively.
In one embodiment, the clamping device further comprises a buffer, and the buffer is arranged on the side, facing away from the first clamping plate, of the second clamping plate.
In one embodiment, the trigger further comprises a guide connecting the first and second jaws.
In one embodiment, the guide member includes at least two guide rods arranged at intervals, one end of each guide rod is movably arranged to penetrate through the first clamping plate, and the other end of each guide rod is connected with the second clamping plate.
In one embodiment, the guide member comprises at least two hinges spaced apart from each other, and two ends of each hinge are connected to the first clamping plate and the second clamping plate respectively.
In one embodiment, the hinge comprises a first fixing plate arranged on the first clamping plate, a second fixing plate arranged on the second clamping plate, a first hinge hinged with the first fixing plate, and a second hinge hinged with the second fixing plate, wherein the first hinge is hinged with the second hinge.
An unmanned vehicle comprises a vehicle body and the collision detection mechanism of the unmanned vehicle, wherein the collision detection mechanism of the unmanned vehicle is installed on the outer peripheral side of the vehicle body.
When the impact force of the obstacle on the first clamping plate is greater than the elastic force provided by the elastic piece for the first clamping plate, the first clamping plate overcomes the elastic force of the elastic piece to be close to the second clamping plate, so that the first contact is contacted with the second contact, the trigger is triggered, and the obstacle within 30cm of short distance can be detected; when the trigger touches a small light object such as weeds, the pressure of the small light object impacting the first clamping plate is smaller than the elastic force provided by the elastic piece for the first clamping plate, so that the first clamping plate cannot move towards the direction close to the second clamping plate, namely, the first contact cannot be contacted with the second contact, and the trigger cannot be triggered and has good reliability.
Drawings
Fig. 1 is a schematic structural view of a collision detection mechanism for an unmanned vehicle according to a first embodiment of the present invention;
FIG. 2 is an exploded view of the collision detector for an unmanned vehicle of FIG. 1;
fig. 3 is a schematic structural view of a hinge of the collision detecting machine for an unmanned vehicle of fig. 1;
FIG. 4 is an exploded view of the hinge of the collision detector for an unmanned vehicle of FIG. 3;
fig. 5 is a schematic structural diagram of a trigger of a collision detection mechanism for an unmanned vehicle according to a second embodiment of the present invention.
The meaning of the reference symbols in the drawings is:
the spring comprises a trigger 100, a first clamping plate 10, a second clamping plate 20, a second annular groove 21, a first contact 30, a second contact 40, an elastic element 50, a guide element 60, a hinge 61, a first fixing plate 62, a second fixing plate 63, a first hinge 64, a second hinge 65, a first limiting element 66, a second limiting element 67, a first rolling sleeve 68, a second rolling sleeve 69, a shell 200 and a buffer 300;
the trigger 100a, the first clamping plate 10a, the second clamping plate 20a, the first contact 30a, the second contact 40a, the elastic piece 50a, the guide piece 60a and the guide rod 61 a.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully below. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Referring to fig. 1 to 4, a collision detecting mechanism for an unmanned vehicle according to a first embodiment of the present invention is installed on a housing of the unmanned vehicle; it should be noted that the collision-prevention detection mechanism may be installed at any position on the unmanned vehicle housing, a plurality of collision-prevention detection mechanisms may be installed on the unmanned vehicle housing to cover the entire front and side portions of the unmanned vehicle, or may be installed at the rear portion of the unmanned vehicle if necessary, so that the collision-prevention detection mechanism covers the area of the unmanned vehicle housing to respond to collisions of various forms and sources as large as possible.
Referring to fig. 1, the collision detecting mechanism of the unmanned vehicle includes a trigger 100, the trigger 100 includes a first clamping plate 10, a second clamping plate 20, a first contact 30, a second contact 40, and an elastic member 50; the first clamping plate 10 and the second clamping plate 20 are oppositely arranged at intervals, the first clamping plate 10 is used for touching obstacles, and the second clamping plate 20 is used for connecting the unmanned vehicle. The first contact 30 is arranged on the side of the first clamping plate 10 facing the second clamping plate 20, the first contact 30 extending in the direction of the second clamping plate 20; the second contact 40 is arranged on the side of the second clamping plate 20 facing the first clamping plate 10, and the second contact 40 extends in the direction of the first clamping plate 10; the second contact 40 is arranged opposite to the first contact 30, and when the first contact 30 is contacted with the second contact 40, the trigger 100 is triggered; the elastic member 50 is disposed between the first clamping plate 10 and the second clamping plate 20, and two ends of the elastic member 50 can elastically abut against the first clamping plate 10 and the second clamping plate 20, respectively, the elastic member 50 is used for providing an elastic force in a direction in which the first clamping plate 20 is far away from the second clamping plate 30, so as to ensure that a preset distance is kept between the first clamping plate 20 and the second clamping plate 30 under the touch of the trigger 100 without an obstacle, so as to prevent the first contact 30 from contacting the second contact 40; meanwhile, the elastic member 50 has a buffering function, and the first clamping plate 20 is slowly close to the second clamping plate 30 under the elastic buffering function of the elastic member 50, so that the first contact 30 suddenly and rapidly hits the second contact 40 to damage the first contact 30 and the second contact 40.
When the impact force of the obstacle on the first clamping plate 10 of the trigger 100 is greater than the elastic force provided by the elastic member 50 to the first clamping plate 10 during the driving process of the unmanned vehicle, the first clamping plate 10 approaches the second clamping plate 20 by overcoming the elastic force of the elastic member 50, the elastic member 50 is elastically compressed during the approach of the first clamping plate 10 to the second clamping plate 20, when the first contact 30 contacts with the second contact 40, the trigger 100 is triggered and sends a trigger signal to a control system on the unmanned vehicle, and the control system controls the unmanned vehicle to be far away from the obstacle or to be suddenly stopped according to the trigger signal of the trigger 100 so as to prevent the unmanned vehicle from being damaged by colliding with the obstacle.
In the collision detection mechanism for the unmanned vehicle, the first clamping plate 10 is used for colliding with an obstacle, the second clamping plate 20 is used for connecting the unmanned vehicle, when the collision force of the obstacle received by the first clamping plate 10 is larger than the elastic force provided by the elastic member 50 to the first clamping plate 10, the first clamping plate 10 overcomes the elastic force of the elastic member 50 to approach the second clamping plate 20, so that the first contact 30 contacts with the second contact 40, and the trigger 100 is triggered, and the obstacle with a short distance within 30cm can be detected; and when the trigger 100 touches a small object such as a weed, since the pressure of the small object hitting the first clamping plate 10 is less than the elastic force provided by the elastic member 50 to the first clamping plate 10, the first clamping plate 10 does not move toward the direction close to the second clamping plate 20, i.e., the first contact 30 cannot contact the second contact 40, and thus the trigger 50 is not triggered, and the reliability is good.
Specifically, the side of the first clamping plate 10 departing from the second clamping plate 20 is a plane portion, which effectively increases the contact area between the first clamping plate 10 and the obstacle, and the action range is large. The shapes of the first and second nip plates 10 and 20 are not limited, and may be rectangular, circular, triangular, or the like. Specifically, in the present embodiment, the first clamping plate 10 is a rectangular plate, the length and the width of the first clamping plate 10 are both 10cm, and the thickness of the first clamping plate 10 is 0.1 cm; the second clamping plate 10 may have the same structure and dimensions as the first clamping plate 10.
In some embodiments, the first contact 30 is disposed in the middle of the first clamping plate 10 and the second contact 40 is disposed in the middle of the second clamping plate 20.
It should be noted that there are many ways to trigger the trigger 100 when the first contact 30 contacts the second contact 40; in some embodiments, a single wire is connected between the first contact 30 and the second contact 40, and when the first contact 30 contacts the second contact 40, the trigger circuit of the trigger 100 forms a closed loop, so that the trigger 100 is activated, i.e., the trigger 100 is triggered. It should be noted that the number of the first contacts 30 and the second contacts 40 is not limited, that is, the number of the first contacts 30 and the second contacts 40 may be multiple, and any two first contacts 30 are in contact with the second contacts 40 to activate the trigger 100, so as to improve the sensitivity of the trigger 100. In other embodiments, a piezoelectric material is disposed on a side of the first contact 30 facing the second contact 40 or on a side of the second contact 40 facing the first contact 30, such that when the first contact 30 contacts the second contact 40 and presses the piezoelectric material, a voltage change occurs in the piezoelectric material, and a pressure detector is connected to the piezoelectric material, and the pressure detector obtains a touch signal by detecting the voltage change in the piezoelectric material. The piezoelectric material may be a strain gauge, a travel switch, or a crystalline material that develops a voltage across its two terminal surfaces when subjected to a compressive force.
In some embodiments, the elastic member 50 is made of metal, and the first clamping plate 10 and the second clamping plate 20 are both insulating plates, which can prevent the trigger 100 from forming a closed loop through the first clamping plate 10, the elastic member 50 and the second clamping plate 20 to activate the trigger 100. Of course, in other embodiments, when the elastic member 50 is made of an insulating material, the material of the first clamping plate 10 and the second clamping plate 20 is not limited.
In some embodiments, one end of the elastic member 50 elastically abuts against a side of the first clamping plate 10 facing the second clamping plate 20, and the other end of the elastic member 50 elastically abuts against a side of the second clamping plate 20 facing the first clamping plate 10, that is, the elastic member 50 is not fixedly connected to the first clamping plate 10 and the second clamping plate 20, so that when the elasticity of the elastic member 50 is damaged, the elastic member 50 can be replaced through a space formed between the first clamping plate 10 and the second clamping plate 20. In other embodiments, the two ends of the elastic member 50 are fixedly connected to the first clamping plate 10 and the second clamping plate 20, so that the stability of the installation of the elastic member 50 can be enhanced, and at the same time, the first clamping plate 10 is connected to the second clamping plate 20 through the elastic member 50. In other embodiments, one end of the elastic member 50 is fixedly connected to the first clamping plate 10, and the other end of the elastic member 50 elastically abuts against a side of the second clamping plate 20 facing the first clamping plate 10; or, one end of the elastic element 50 elastically pushes against one side of the first clamping plate 10 facing the second clamping plate 20, and the other end of the elastic element 50 is fixedly connected with the second clamping plate 20.
The number and structure of the elastic members 50 are not limited, for example, the elastic members 50 may be a spring, a pneumatic system, a hydraulic system, a rubber layer or a sponge layer, etc., the number of the elastic members 50 may be plural, and the plural elastic members 50 are disposed around the first contacts 30 and the second contacts 40. In this embodiment, the elastic member 50 is a coil spring, and the coil spring is disposed around the first contact 30 and the second contact 40. Referring to fig. 2, further, a first annular groove is formed at a side of the first clamping plate 10 facing the second clamping plate 20, a second annular groove 21 is formed at a side of the second clamping plate 20 facing the first clamping plate 10, and two ends of the coil spring are respectively received in the first annular groove and the second annular groove 21, so that the coil spring is effectively prevented from deviating relative to the first clamping plate 10 and the second clamping plate 20, and the stability of the coil spring abutting against the first clamping plate 10 and the second clamping plate 20 is ensured.
Referring to fig. 1 and 2, the trigger 100 further includes a guide 60, the guide 60 connects the first clamping plate 10 and the second clamping plate 20, the guide 60 is used for connecting the first clamping plate 10 and the second clamping plate 20, and the first clamping plate 10 can move relative to the second clamping plate 20; meanwhile, the guide 60 serves to guide the first clamping plate 10 during the approach or the separation of the first clamping plate 10 to the second clamping plate 20 so that the first clamping plate 10 can be smoothly approached or separated to or from the second clamping plate 20 so that the first contact 30 can be accurately brought into contact with the second contact 40.
The structure of the guide 60 may be various forms, for example, the guide 60 may be a hinge or a guide bar, etc. In some embodiments, referring to fig. 3 and 4, the guiding member 60 includes at least two hinges 61 spaced apart from each other, the two ends of each hinge 61 are connected to the first clamping plate 10 and the second clamping plate 20, and the first clamping plate 10 can be guided by the hinges 61 to respond to impacts in all directions, that is, the first clamping plate 10 can move toward the second clamping plate 20 regardless of which part of the first clamping plate 10 is impacted by an obstacle and the impact force is greater than the elastic force of the elastic member 50. Specifically, the hinge 61 includes a first fixing plate 62 disposed on the first clamping plate 10, a second fixing plate 63 disposed on the second clamping plate 20, a first hinge 64 hinged to the first fixing plate 62, and a second hinge 65 hinged to the second fixing plate 63, wherein the first hinge 64 is hinged to the second hinge 65. Therefore, as can be understood, during the process that the first clamping block 10 is close to or far away from the second clamping plate 20, the first hinge 64 rotates relative to the first fixing plate 62, the second hinge 65 rotates relative to the second fixing plate 63, and the second hinge 65 and the first hinge 64 rotate relative to each other, so that the first clamping plate 10 is effectively prevented from translating relative to the second clamping plate 20 during the motion process.
More specifically, the first fixing plate 62 is closely attached to the side of the first clamping plate 10 facing the second clamping plate 20 and is arranged parallel to the first clamping plate 10; further, the first fixing plate 62 is detachably connected to the first clamping plate 10, for example, the first fixing plate 62 is screwed to the first clamping plate 10. The second fixing plate 63 is arranged opposite to the first fixing plate 62, and the second fixing plate 63 is closely attached to one side of the second clamping plate 20 facing the first clamping plate 10 and is arranged parallel to the second clamping plate 20; further, the second fixing plate 63 is detachably connected to the second clamping plate 20, for example, the second fixing plate 63 is screwed to the second clamping plate 20. One end of the first hinge 64 is hinged to the first fixing plate 62 through a hinge shaft, one end of the second hinge 65 is hinged to the second fixing plate 63 through a hinge shaft, and one end, far away from the second fixing plate 63, of the second hinge 65 is hinged to one end, far away from the first fixing plate 62, of the first hinge 64 through a hinge shaft.
In some embodiments, the hinge 61 further includes a first limiting member 66 disposed on the first fixing plate 62 and a second limiting member 67 disposed on the second fixing plate 63, the first limiting member 66 is used for limiting a rotation angle of the first hinge 64 relative to the first clamping plate 10, and the second limiting member 67 is used for limiting a rotation angle of the second hinge 65 relative to the second clamping plate 20, so as to prevent the first hinge 64 from being perpendicular to the first clamping plate 10, the second hinge 65 from being perpendicular to the second clamping plate 20, and the first hinge 64 and the second hinge 65 are located on the same plane, so as to prevent a jamming phenomenon from occurring between the first hinge 64 and the first clamping plate 10, between the second hinge 65 and the second clamping plate 20, and prevent the first clamping plate 10 from being unable to overcome an elastic force of the elastic member 50 to approach the second clamping plate 20 after the first clamping plate touches an obstacle.
Further, a first rolling sleeve 68 is disposed on the first fixing plate 62, and the first fixing plate 62 is hinged to the first hinge 64 through the first rolling sleeve 68, that is, a hinge shaft is disposed through the first rolling sleeve 68 and a shaft hole at one end of the first hinge 64, so that the first hinge 64 can rotate relative to the first rolling sleeve 68. The first limiting piece 66 is a first limiting piece, the first limiting piece is arranged at one end, close to the first hinge 64, of the first rolling sleeve 68 and is integrally formed with the first rolling sleeve 68, the angle between the inner side face of the first limiting piece and the first fixing plate 62 is smaller than 90 degrees and larger than 60 degrees, the first fixing plate 62 is parallel to the first fixing plate 62, so that the angle between the inner side face of the first limiting piece and the first clamping plate 10 is smaller than 90 degrees and larger than 60 degrees, the first limiting piece is arranged on the outer side of the first hinge 64, and when the first hinge 64 touches the inner side face of the first limiting piece, it is indicated that the first hinge 64 rotates to the maximum angle relative to the first clamping plate 10.
The second fixing plate 63 is provided with a second rolling sleeve 69, the second fixing plate 63 is hinged to the second hinge 65 through the second rolling sleeve 69, namely, a hinge shaft penetrates through the second rolling sleeve 69 and a shaft hole at one end of the second hinge 65, so that the second hinge 65 can rotate relative to the second rolling sleeve 69. The second limiting piece 67 is a second limiting piece, the second limiting piece is arranged at one end, close to the second hinge 65, of the second rolling sleeve 69 and is integrally formed with the second rolling sleeve 69, the angle between the inner side face of the second limiting piece and the second fixing plate 63 is smaller than 90 degrees and larger than 60 degrees, the second fixing plate 63 is parallel to the first clamping plate 10, so that the angle between the inner side face of the second limiting piece and the first clamping plate 10 is smaller than 90 degrees and larger than 60 degrees, the second limiting piece is arranged on the outer side of the second hinge 65, and when the second hinge 65 touches the inner side face of the second limiting piece, it is indicated that the second hinge 65 rotates to the maximum angle relative to the first clamping plate 10.
It should be noted that the angle between two adjacent hinges 61 is greater than 0 ° and smaller than 90 °; further, the angle between two adjacent hinges 61 is 90 °; specifically, when the number of hinges 61 is two, the angle between the two hinges 61 is greater than 0 ° and less than 90 °; if the number of the hinges 61 is two and the two hinges 61 are parallel to each other, the first hinge 64 may translate relative to the first fixing plate 62, the second hinge 65 relative to the second fixing plate 63, and the second hinge 65 relative to the first hinge 64, so that the first clamping plate 10 may translate relative to the second clamping plate 20. Specifically to in this embodiment, the quantity of hinge 61 is four, and four hinges 61 set up along the circumference interval of first splint 10 and second splint 20, and two liang of relative intervals of four hinges 61 set up, through setting up four hinges 61, can respond the collision of all directions better, and be favorable to improving the stability to the direction of first splint 10 to make first splint 10 can be close to more steadily or keep away from first splint 20.
Referring to fig. 1 and fig. 2 again, in some embodiments, the collision detecting mechanism of the unmanned vehicle further includes a housing 200, and the housing 200 is attached to a side of the first clamping plate 10 facing away from the second clamping plate 20; further, the housing 200 is detachably connected to the first clamping plate 10, for example, the housing 200 and the first clamping plate 10 can be connected by bonding or screwing. The housing 200 is made of hard materials, such as hard metal, plastic, etc. The housing 200 is used for protecting the first clamping plate 10 and ensuring that the exterior of the collision detection mechanism of the unmanned vehicle has good aesthetic property; specifically, when the collision detecting mechanism of the unmanned vehicle touches an obstacle, the housing 200 directly contacts the obstacle; the appearance of the collision detecting mechanism of the unmanned vehicle can be beautified by coating the outer surface of the housing 200.
It should be noted that the elastic force of the elastic element 50 ranges from 30N to 50N, and is specifically designed according to the weight of the housing 200; thus, it can be understood that, when the collision detecting mechanism of the unmanned vehicle is subjected to the collision force of the obstacle greater than the elastic force of the elastic member 50, the housing 200 and the first clamping plate 10 move toward the second clamping plate 20 against the elastic force of the elastic member 50 until the first contact 30 contacts the second contact 40, and the trigger 100 is triggered; when the collision detecting mechanism of the unmanned vehicle receives an impact force of an obstacle smaller than the elastic force of the elastic member 50, the housing 200 and the first clamping plate 10 do not move toward the second clamping plate 20, so that the trigger 100 is not triggered, i.e., the collision detecting mechanism of the unmanned vehicle does not react to light objects such as roadside weeds.
In some embodiments, the collision detecting mechanism of the unmanned vehicle further comprises a bumper 300, the bumper 300 is disposed on a side of the second clamping plate 20 facing away from the first clamping plate 10, and the bumper 300 is configured to be directly mounted on the unmanned vehicle, i.e., the second clamping plate 20 of the trigger 10 is connected to the unmanned vehicle through the bumper 300. After the first contact 30 contacts the second contact 40, that is, the trigger 100 is triggered, the buffer 300 is used to provide buffering capability for the trigger 100 and the housing 200 to approach the unmanned vehicle, that is, the buffer 300 is used to slow down the speed of the trigger 100 and the housing 200 approaching the unmanned vehicle, so as to protect the internal structures of the trigger 100, the housing 200 and the unmanned vehicle, which is beneficial to prolonging the service life of the trigger 100, the housing 200 and the internal structures of the unmanned vehicle and saving the cost.
The buffer 300 is a buffer layer, and the thickness of the buffer layer is 2cm-10 cm; in particular, the buffer layer may be a balloon, a porous flexible material such as silicone or a spring, etc. Further, the buffer 300 is detachably connected to the second clamping plate 20, for example, the buffer 300 and the second clamping plate 20 can be connected by bonding or screwing.
Referring to fig. 5, in order to illustrate a trigger 100a of a collision detecting mechanism for an unmanned vehicle according to a first embodiment of the present invention, the trigger 100a includes a first clamping plate 10a, a second clamping plate 20a, a first contact 30a, a second contact 40a, an elastic member 50a, and a guide 60 a; the first clamping plate 10a, the second clamping plate 20a, the first contact 30a, the second contact 40a and the elastic member 50a are respectively the same as the first clamping plate 10, the second clamping plate 20, the first contact 30, the second contact 40 and the elastic member 50 of the first embodiment; the different points are that the guide part 60a comprises at least two guide rods 61a arranged at intervals, the at least two guide rods 61a are arranged at intervals along the circumferential direction of the first clamping plate 10 and the second clamping plate 20, one end of each guide rod 61a movably penetrates through the first clamping plate 10a, and the other end of each guide rod 61a is connected with the second clamping plate 20a, so that the first clamping plate 10a is close to or far away from the second clamping plate 20a along the guide rods 60 a. Specifically, in the present embodiment, the number of the guide rods 61a is four, and the four guide rods 61a are disposed around the first contact 30a and the second contact 40a at equal intervals.
The utility model also provides an unmanned vehicle, which comprises a vehicle body and the collision detection mechanism of the unmanned vehicle, wherein the collision detection mechanism of the unmanned vehicle is arranged on the peripheral side of the vehicle body; furthermore, the number of collision detection mechanisms of the unmanned vehicles is multiple, the collision detection mechanisms of the unmanned vehicles are arranged at intervals along the outer peripheral side of the vehicle body, or the collision detection mechanisms of the unmanned vehicles are spliced and combined.
The utility model discloses a collision detection mechanism for unmanned car can the exclusive use, also can splice the combination and use, can form the anticollision institution of great area. Of course, larger or smaller area cells can be made to accommodate the use requirements of different scenes. The collision detection mechanism of a plurality of unmanned vehicles can be adopted to install the whole vehicle body, the response range is enlarged, and all parts can respond when being collided. When the collision detection mechanism on a certain part of the unmanned vehicle is damaged, only the damaged single collision detection mechanism needs to be replaced, so that the replacement is convenient, and the cost is reduced. The pressure required for triggering a single collision detection mechanism is small, and the collision detection mechanism has good response capability to uneven obstacles.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A collision detection mechanism for an unmanned vehicle is characterized by comprising a trigger, wherein the trigger comprises a first clamping plate, a second clamping plate, a first contact, a second contact and an elastic piece; the first clamping plate and the second clamping plate are oppositely arranged at intervals, the first contact is arranged on one side of the first clamping plate, which faces the second clamping plate, the second contact is arranged on one side of the second clamping plate, which faces the first clamping plate, and the second contact is oppositely arranged with the first contact; the elastic component is arranged between the first clamping plate and the second clamping plate, and two ends of the elastic component can be elastically abutted to the first clamping plate and the second clamping plate respectively.
2. The collision detecting mechanism for an unmanned vehicle according to claim 1, further comprising a housing attached to a side of the first cleat facing away from the second cleat.
3. The collision detecting mechanism for an unmanned vehicle according to claim 1, wherein the elastic member is a coil spring, and the coil spring is provided around the first contact point and the second contact point.
4. The collision detecting mechanism for an unmanned vehicle according to claim 3, wherein a first annular groove is provided on a side of the first clamp plate facing the second clamp plate, a second annular groove is provided on a side of the second clamp plate facing the first clamp plate, and both ends of the coil spring are respectively received in the first annular groove and the second annular groove.
5. The collision detecting mechanism for an unmanned vehicle according to claim 1, further comprising a bumper provided on a side of the second cleat facing away from the first cleat.
6. The collision detecting mechanism for an unmanned vehicle of claim 1, wherein the trigger further comprises a guide connecting the first and second jaws.
7. The collision detecting mechanism for an unmanned vehicle according to claim 6, wherein the guide member comprises at least two guide rods arranged at intervals, one end of each guide rod is movably arranged to penetrate through the first clamping plate, and the other end of each guide rod is connected with the second clamping plate.
8. The collision detecting mechanism for an unmanned vehicle according to claim 6, wherein the guide member includes at least two hinges provided at intervals, and both ends of the hinges are connected to the first and second clamp plates, respectively.
9. The collision detecting mechanism for an unmanned vehicle according to claim 8, wherein the hinge includes a first fixing plate provided on the first clamp plate, a second fixing plate provided on the second clamp plate, a first hinge hinged to the first fixing plate, and a second hinge hinged to the second fixing plate, the first hinge being hinged to the second hinge.
10. An unmanned vehicle characterized by comprising a vehicle body and the collision detecting mechanism of the unmanned vehicle of any one of claims 1 to 9, the collision detecting mechanism of the unmanned vehicle being mounted on an outer peripheral side of the vehicle body.
CN201921936966.0U 2019-11-11 2019-11-11 A collision detection mechanism and unmanned vehicle for unmanned vehicle Active CN211075814U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110696766A (en) * 2019-11-11 2020-01-17 深圳一清创新科技有限公司 A collision detection mechanism and unmanned vehicle for unmanned vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110696766A (en) * 2019-11-11 2020-01-17 深圳一清创新科技有限公司 A collision detection mechanism and unmanned vehicle for unmanned vehicle
CN110696766B (en) * 2019-11-11 2023-12-22 深圳一清创新科技有限公司 Collision detection mechanism for unmanned vehicle and unmanned vehicle

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