CN217689002U

CN217689002U - Motor vehicle speed and vehicle type detection device based on double-layer laser light curtain

Info

Publication number: CN217689002U
Application number: CN202221458804.2U
Authority: CN
Inventors: 王霄; 卜伟雄; 曹一涵
Original assignee: Nanjing Sulu Communication Information System Technology Co ltd
Current assignee: Nanjing Sulu Communication Information System Technology Co ltd
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-10-28
Anticipated expiration: 2032-06-13

Abstract

The utility model discloses a motor vehicle speed and vehicle type detection device based on a double-layer laser light curtain, which comprises a high door frame and a vehicle speed detection assembly; a plurality of speed of a motor vehicle determine module all install on high portal, wherein, speed of a motor vehicle determine module includes installed part and arc snap ring, installed part and arc snap ring block are connected on high portal, install laser sensor on the installed part, threaded connection has a pair of threaded connection spare on the arc snap ring, fixedly connected with card post on the threaded connection spare, be equipped with a pair of movable groove in the installed part, a pair of movable groove respectively with a pair of corresponding setting of card post, be equipped with anti-disengaging mechanism in the movable groove, anti-disengaging mechanism and card post looks block. The utility model discloses a setting of corresponding mechanism can effectual solution laser sensor use for a long time and the installation stability problem that exists for laser sensor can install firmly, and then can guarantee laser sensor's detection effect, reduces the detection error.

Description

Motor vehicle speed and vehicle type detection device based on double-layer laser light curtain

Technical Field

The utility model belongs to the technical field of motor vehicle speed measurement, concretely relates to motor vehicle speed motorcycle type check out test set based on double-deck laser light curtain.

Background

The existing motor vehicle speed measuring device is characterized in that two combined mechanical scanning laser sensors, namely a group of laser sensors are fixedly arranged at the middle position in one direction, and two light spot linear arrays are formed: a first light spot linear array t1 and a second light spot linear array t2. When the locomotive of the motor vehicle passes through the previous t1 light curtain, the time of the t1 laser (light curtain) sensor receiving the laser signal returned by the locomotive is shorter than the time t1a of the laser signal returned by the ground, namely the time information of the starting point of the t1 light curtain passed by the locomotive is acquired; when the tail of the motor vehicle passes through the previous light curtain T1, the time T1b of the laser (light curtain) sensor receiving the laser signal returned from the road surface is acquired, namely the time information of the tail of the motor vehicle passing through the light curtain T1 is acquired, so that the time T1a when the head of the motor vehicle reaches the T1 and the time T2a of the light curtain T2 are acquired, the distance between the two laser light curtains T1 and T2 is 700cm, and the speed of the motor vehicle is calculated according to the formula speed V =700 cm/(T2 a-T1 a).

However, the motor vehicle speed measuring device has the problems of low precision and short service life, and therefore, a new motor vehicle speed detecting method appears on the market, for example, the invention patent in China with the publication number of CN110208569A discloses a motor vehicle speed and vehicle type detecting method based on a double-layer and one-line laser light curtain, the patent adopts the double-layer laser light curtain formed by two laser sensors which are arranged in parallel to collect the vehicle speed, namely, the high-precision sampling calculation of the vehicle length of the motor vehicle head and the tail position of the motor vehicle and the collection of the height data dot matrix pattern recognition vehicle type of each part of the vehicle roof are realized by collecting the data change time of the road surface distance of the light curtain emitted by the motor vehicle through the first laser sensor and the motor vehicle distance; the high-precision speed measurement is realized by acquiring the data change time difference between the road surface distance of the two laser light curtains emitted by the first laser sensor and the second laser sensor at the head of the motor vehicle and the distance between the two light curtains, and the problem that the existing motor vehicle speed measuring device is low in precision and short in service life can be effectively solved. However, the laser sensor in this patent is generally fixed on the high portal through the bolt, because the dust is more on the road, the bolt is easily rusted by the dust, and then causes laser sensor's installation unstability easily to influence laser sensor's measuring effect, there is detection error easily.

Therefore, in view of the above technical problems, it is necessary to provide a vehicle speed and type detection device for a motor vehicle based on a double-layer laser light curtain.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a motor vehicle speed motorcycle type check out test set based on double-deck laser light curtain to there is the unstable problem of installation easily in solving foretell laser sensor.

In order to achieve the above object, an embodiment of the present invention provides the following technical solutions:

a motor vehicle speed and vehicle type detection device based on a double-layer laser light curtain comprises a high door frame and a vehicle speed detection assembly;

it is a plurality of speed of a motor vehicle detection subassembly is all installed on the high portal, wherein, speed of a motor vehicle detection subassembly includes installed part and arc snap ring, installed part and arc snap ring block are connected on high portal, install laser sensor on the installed part, threaded connection has a pair of threaded connection spare on the arc snap ring, fixedly connected with card post on the threaded connection spare, be equipped with a pair of movable groove in the installed part, it is a pair of movable groove the movable groove sets up with a pair of card post is corresponding respectively, the activity inslot is equipped with anti-disengaging mechanism, anti-disengaging mechanism and card post looks block.

Further, the installed part is close to be equipped with a pair of block groove on the one side of arc snap ring, a pair of block groove respectively with a pair of threaded connection spare is corresponding to be set up, threaded connection spare locates the block inslot, provides certain space for the block of installed part and arc snap ring for the fixed that installed part and arc snap ring can be better.

Furthermore, the card post is located be equipped with the anticreep groove on the lateral wall in activity groove, be convenient for connect the block of ball, and then can realize the fixed of installed part and arc snap ring.

Furthermore, the anti-falling mechanism comprises a pressure increasing plate which is connected in the movable groove in a sliding manner, the pressure increasing plate is used for extruding the connecting ball, and when the clamping column is inserted into the movable groove, the connecting ball can be clamped in the anti-falling groove, so that the mounting piece is fixed with the arc-shaped clamping ring;

the activity groove is close to one side of card post is equipped with a plurality of connection balls, it is in to connect the ball block anticreep inslot, through connecting the ball block at the block inslot for fixed mounting spare and arc snap ring, and then accomplish laser sensor's installation, so that utilize laser sensor to monitor the motor vehicle speed, in addition, insert the fixed mode at the activity groove through the card post, also can make the card post be difficult for receiving the corrosion of dust, guarantee the holistic life of installed part and arc snap ring.

Furthermore, a linkage rope is connected between the pressure increasing plate and the connecting ball, and when the pressure increasing plate moves, the connecting ball can be driven to move synchronously through the linkage rope.

Further, the pressure increasing plate is kept away from one side of connecting the ball is equipped with the elastic component, the elastic component with the lateral wall of activity groove contacts for increase pressure increasing plate is to the extrusion force of connecting the ball, makes the block that connects the ball can be firmly in the anticreep inslot, guarantees the fixed effect of installed part and arc snap ring.

Furthermore, a pull rope is connected to the center of the pressure increasing plate, and when the laser sensor needs to be disassembled, a worker can separate the mounting piece and the arc-shaped clamping ring by pulling the pull rope;

all cut a handle chamber on a pair of lateral wall of installed part, the one end that the stay cord is located the handle intracavity is connected with the handle, and the handle chamber is used for holding the handle, through the setting of handle, not only makes things convenient for pulling of staff to drag, still can be used to spacing stay cord for the stay cord is difficult for entering into in the installed part completely.

Furthermore, the mounting piece is hinged with a pair of cover doors, the cover doors are arranged corresponding to the handle cavity, and the handle cavity is sealed by the cover doors to ensure the handle;

the mounting part is internally provided with a pair of steering pulleys, the pair of steering pulleys are respectively arranged corresponding to the pair of pull ropes, and the steering pulleys are in rolling connection with the pull ropes and used for sliding the pull ropes, so that the abrasion between the pull ropes and the side walls of the mounting part is reduced, and the service lives of the pull ropes are ensured.

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

the utility model discloses a setting of corresponding mechanism can effectual solution laser sensor use for a long time and the installation stability problem that exists for laser sensor can install firmly, and then can guarantee laser sensor's detection effect, reduces the detection error.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is an installation effect diagram of a motor vehicle speed and vehicle type detection device based on a double-layer laser light curtain in an embodiment of the present invention;

FIG. 2 is a schematic view of the structure at A in FIG. 1;

fig. 3 is a sectional view of a vehicle speed and model detection device of a motor vehicle based on a double-layer laser light curtain according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram at B in fig. 3.

In the figure: 1. the automobile speed detection device comprises a high door frame, 2, a vehicle speed detection assembly, 201, a mounting member, 202, an arc-shaped snap ring, 203, a laser sensor, 204, a threaded connection member, 205, a snap column, 206, a movable groove, 207, a pressure increasing plate, 208, a connecting ball, 209, an elastic member, 210, a pull rope, 211, a pull handle cavity, 212, a pull handle, 213, a cover door, 214 and a steering pulley.

Detailed Description

The present invention will be described in detail below with reference to embodiments shown in the drawings. However, the present invention is not limited to the embodiments, and structural, method or functional changes made by those skilled in the art according to the embodiments are all included in the scope of the present invention.

The utility model discloses a motor vehicle speed motorcycle type check out test set based on double-deck laser light curtain, refer to fig. 1-4 and show, including high portal 1, speed of a motor vehicle detection subassembly 2.

Wherein, a plurality of speed of a motor vehicle determine module 2 all install on high portal 1, through a plurality of speed of a motor vehicle determine module 2's setting, can detect the speed of a motor vehicle.

In addition, the vehicle speed detecting assembly 2 comprises a mounting piece 201 and an arc-shaped snap ring 202, the mounting piece 201 and the arc-shaped snap ring 202 are connected to the high mast 1 in a clamping mode, a laser sensor 203 is installed on the mounting piece 201, and the laser sensor 203 is installed through the clamping arrangement of the mounting piece 201 and the arc-shaped snap ring 202.

Preferably, please refer to chinese patent publication No. CN110208569A for the specific working principle of the laser sensor 203, which is not described herein again.

Specifically, threaded connection has a pair of threaded connection 204 on the arc snap ring 202, mode through threaded connection 204 and arc snap ring 202 threaded connection, be convenient for change threaded connection 204 and calorie post 205, fixedly connected with card post 205 on the threaded connection 204, through inserting card post 205 in movable groove 206, realize the fixed of installed part 201 and arc snap ring 202 promptly, and easy operation is swift, also make card post 205 difficult by the dust corrosion simultaneously, guarantee the life of card post 205, also can guarantee laser sensor 203's installation stability.

Preferably, a pair of engaging grooves is formed on one surface of the mounting member 201 close to the arc-shaped snap ring 202, the pair of engaging grooves are respectively disposed corresponding to the pair of threaded connectors 204, that is, at the position shown in fig. 4, and the threaded connectors 204 are disposed in the engaging grooves to provide a certain space for the engagement between the mounting member 201 and the arc-shaped snap ring 202, so that the mounting member 201 and the arc-shaped snap ring 202 can be better fixed.

In addition, the clamping column 205 is provided with a separation-preventing groove on the side wall of the movable groove 206, so that the clamping of the connecting ball 208 is facilitated, and further, the fixing of the mounting piece 201 and the arc-shaped clamping ring 202 can be realized.

Referring to fig. 1 to 4, a pair of movable grooves 206 are formed in the mounting member 201, the pair of movable grooves 206 are respectively disposed corresponding to the pair of locking posts 205, and an anti-disengaging mechanism is disposed in the movable grooves 206, and is engaged with the locking posts 205 through the anti-disengaging mechanism, so as to fix the mounting member 201 and the arc-shaped snap ring 202.

The anti-falling mechanism comprises a pressure increasing plate 207, the pressure increasing plate 207 is slidably connected in the movable groove 206, the pressure increasing plate 207 is used for extruding the connecting ball 208, and when the clamping column 205 is inserted into the movable groove 206, the connecting ball 208 can be clamped in the anti-falling groove, so that the mounting piece 201 is fixed with the arc-shaped clamping ring 202.

In addition, one side that movable groove 206 is close to card post 205 is equipped with a plurality of connecting balls 208, connecting ball 208 block is in the anticreep inslot, block in the groove through connecting ball 208 block, be used for fixed mounting part 201 and arc snap ring 202, and then accomplish laser sensor 203's installation, so that utilize laser sensor 203 to monitor the motor vehicle speed, in addition, insert the fixed mode at movable groove 206 through card post 205, also can make card post 205 be difficult for receiving the corrosion of dust, guarantee the holistic life of installed part 201 and arc snap ring 202.

Preferably, a linkage rope is connected between the pressure increasing plate 207 and the connecting ball 208, when the pressure increasing plate 207 moves, the linkage rope can drive the connecting ball 208 to move synchronously, namely when the laser sensor 203 needs to be detached, the pressure increasing plate 207 is pulled to move through the pull rope 210, the pressure increasing plate 207 drives the connecting ball 208 to move through the linkage rope until the connecting ball 208 is separated from the anti-falling groove in the clamping column 205, at this time, the separation of the mounting piece 201 and the arc-shaped clamping ring 202 can be realized, and the laser sensor 203 can be conveniently taken down.

Specifically, one side of the pressure increasing plate 207, which is far away from the connecting ball 208, is provided with an elastic member 209, and the elastic member 209 is in contact with a side wall of the movable groove 206, so as to increase the pressing force of the pressure increasing plate 207 on the connecting ball 208, so that the connecting ball 208 can be firmly clamped in the anti-falling groove, and the fixing effect of the mounting member 201 and the arc-shaped snap ring 202 is ensured.

In addition, the center of the pressure increasing plate 207 is connected with a pull rope 210, and when the laser sensor 203 needs to be detached, a worker can separate the mounting member 201 and the arc-shaped snap ring 202 by pulling the pull rope 210.

Referring to fig. 1-4, a pair of side walls of the mounting member 201 are each provided with a handle cavity 211, one end of the pull rope 210 located in the handle cavity 211 is connected with a handle 212, the handle cavity 211 is used for accommodating the handle 212, and the handle cavity 211 is used for accommodating the pull rope 212, so that the pull rope 210 is not only convenient for a worker to pull, but also can be used for limiting the pull rope 210, and the pull rope 210 is not easy to completely enter the mounting member 201.

Wherein, hinged connection has a pair of lid door 213 on the installed part 201, and lid door 213 sets up with handle cavity 211 correspondingly, comes the lid handle cavity 211 through lid door 213 for guarantee handle 212.

In addition, a pair of diverting pulleys 214 are arranged in the mounting member 201, the pair of diverting pulleys 214 are respectively arranged corresponding to the pair of pull ropes 210, and the diverting pulleys 214 are connected with the pull ropes 210 in a rolling way and used for sliding the pull ropes 210, so that the abrasion of the pull ropes 210 and the side wall of the mounting member 201 is reduced, and the service life of the pull ropes 210 is ensured.

When the laser sensor 203 is needed to be detached in specific use, only the cover door 213 needs to be opened, the handle 212 in the handle cavity 211 is pulled, the handle 212 pulls the pull rope 210, the pull rope 210 further pulls the pressure increasing plate 207 to move, at the moment, the elastic piece 209 is compressed, the pressure increasing plate 207 drives the connecting ball 208 to move through the linkage rope until the connecting ball 208 is separated from the anti-falling groove in the clamping column 205, at the moment, the mounting piece 201 can be separated from the arc-shaped clamping ring 202, and the laser sensor 203 is convenient to detach;

when the laser sensor 203 needs to be installed, the clamping column 205 on the threaded connection piece 204 is inserted into the movable groove 206 in a aligning manner, so that the connecting ball 208 in the movable groove 206 can be clamped in the anti-falling groove on the side wall of the clamping column 205, the connecting ball 208 can be firmly clamped in the anti-falling groove under the matching action of the pressure increasing plate 207 and the elastic piece 209, the fixing effect of the installation piece 201 and the arc-shaped clamping ring 202 is ensured, and the installation stability of the laser sensor 203 can be ensured.

According to the technical scheme provided by the utility model, the utility model discloses following beneficial effect has:

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a motor vehicle speed motorcycle type check out test set based on double-deck laser light curtain which characterized in that includes:

a high mast (1);

a plurality of speed of a motor vehicle detection subassembly (2), all install on high portal (1), wherein, speed of a motor vehicle detection subassembly (2) are including installed part (201) and arc snap ring (202), installed part (201) and arc snap ring (202) block are connected on high portal (1), install laser sensor (203) on installed part (201), threaded connection has a pair of threaded connection spare (204) on arc snap ring (202), fixedly connected with card post (205) on threaded connection spare (204), be equipped with a pair of movable groove (206) in installed part (201), it is a pair of movable groove (206) respectively with a pair of corresponding setting of card post (205), be equipped with anti-disengaging mechanism in movable groove (206), anti-disengaging mechanism and card post (205) looks block.

2. The device for detecting the vehicle speed and the vehicle type of a motor vehicle based on a double-layer laser light curtain as claimed in claim 1, wherein a pair of engaging grooves is formed on one surface of the mounting member (201) close to the arc-shaped snap ring (202), the pair of engaging grooves are respectively arranged corresponding to the pair of threaded connecting members (204), and the threaded connecting members (204) are arranged in the engaging grooves.

3. The vehicle speed and model detection device of the motor vehicle based on the double-layer laser light curtain as claimed in claim 1, wherein the clamp column (205) is provided with an anti-drop groove on the side wall of the movable groove (206).

4. The vehicle speed and vehicle type detection device of the motor vehicle based on the double-layer laser light curtain as claimed in claim 3, wherein the anti-drop mechanism comprises a pressure increasing plate (207), the pressure increasing plate (207) is slidably connected in the movable groove (206), a plurality of connecting balls (208) are arranged on one side of the movable groove (206) close to the clamping column (205), and the connecting balls (208) are clamped in the anti-drop groove.

5. The device for detecting the vehicle speed and the vehicle type of the motor vehicle based on the double-layer laser light curtain as claimed in claim 4, wherein a linkage rope is connected between the pressure increasing plate (207) and the connecting ball (208).

6. The vehicle speed and vehicle type detection device of the motor vehicle based on the double-layer laser light curtain as claimed in claim 4, wherein the side of the pressurizing plate (207) far away from the connecting ball (208) is provided with an elastic member (209), and the elastic member (209) is in contact with the side wall of the movable groove (206).

7. The vehicle speed and vehicle type detecting device of the motor vehicle based on the double-layer laser light curtain as claimed in claim 6, characterized in that a pulling rope (210) is connected to the center of the pressurizing plate (207), a pair of side walls of the mounting member (201) are both provided with a pulling handle cavity (211), and a pulling handle (212) is connected to one end of the pulling rope (210) located in the pulling handle cavity (211).

8. The vehicle speed and vehicle type detecting device based on the double-layer laser light curtain for the motor vehicle is characterized in that a pair of cover doors (213) are hinged on the mounting part (201), the cover doors (213) are arranged corresponding to the handle cavities (211), a pair of steering pulleys (214) are arranged in the mounting part (201), the pair of steering pulleys (214) are respectively arranged corresponding to the pair of pull ropes (210), and the steering pulleys (214) are connected with the pull ropes (210) in a rolling manner.