CN209764898U

CN209764898U - Vehicle speed measurer

Info

Publication number: CN209764898U
Application number: CN201920777531.XU
Authority: CN
Inventors: 王东海; 陆其龙
Original assignee: Hefei Changqing Motor Vehicle Testing Co Ltd
Current assignee: Hefei Changqing Motor Vehicle Testing Co Ltd
Priority date: 2019-05-25
Filing date: 2019-05-25
Publication date: 2019-12-10
Anticipated expiration: 2029-05-25

Abstract

The utility model relates to a speed of a motor vehicle caliber, include the base, install elevating gear and photoelectric measurement device at the base upside, elevating gear be the automobile elevating platform, photoelectric measurement device be photoelectric sensor, photoelectric sensor includes light emitter and light receiver, the base on install the removal slider that removes the slide rail and remove along the slide rail, install the speculum on waiting to detect the tire of vehicle, the removal slide rail is located the one side that the speculum was installed to waiting to detect the vehicle on the elevating platform, the removal slider on fixed mounting have the lifter of perpendicular to base, install the lift staple bolt on the lifter, fixed mounting has clamping bolt on the lift staple bolt, photoelectric sensor fixed mounting be close to one side of speculum in the lift staple bolt. The tire is well suitable for tires of various models and sizes, and the application range is wider.

Description

Vehicle speed measurer

Technical Field

The utility model relates to a vehicle detection equipment's technical field especially relates to a speed of a motor vehicle caliber.

Background

With the importance of automobile safety, inspection items for automobiles are increasing, and in conventional inspection items, the importance of detecting the rotation speed of an automobile tire is not taken, and whether the actual running speed of an automobile is consistent with an instrument panel or a standard speed is also a new item for automobile safety inspection, so that a measuring instrument for the rated rotation speed of an automobile is also a main point of research by those skilled in the art.

Chinese patent with publication number CN205749568U discloses a speed measurer, including base, elevating platform, fixing base, speed reducer, rotational speed induction device, the fixing base left side sets up the rope stationary dog that is used for the fixed wheel of centre gripping, and flexible fixed fried pivot passes the fixing base, and the speed reducer is connected to flexible stationary dog pivot other end, and the speed reducer upper end leads to the fixing base to be fixed with rotational speed induction device, and the elevating platform will detect vehicle lifting to drive wheel liftoff through the lifter. And then starting the vehicle to enable the wheels to drive the rope fixing claws to rotate, and reading is obtained on the rotating speed sensing device and is compared with data on a vehicle body instrument panel. However, in the detection process, due to the fact that tires of the vehicle are different in size, the telescopic fixing claw cannot be well applicable to various tires, and the application range is narrow.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a speed of a motor vehicle caliber can be when facing the not vehicle tire of equidimension, fine measurement speed of a motor vehicle, and application range is wide.

The above object of the present invention can be achieved by the following technical solutions: the utility model provides a speed of a motor vehicle caliber, includes the base, installs elevating gear and photoelectric measurement device at the base upside, elevating gear be the car elevating platform, photoelectric measurement device be photoelectric sensor, photoelectric sensor includes light emitter and light receiver, the base on install the shifting sledge and along the shifting sledge removal slider of shifting sledge removal, install the speculum on waiting to detect the tire of vehicle, the shifting sledge is located one side that the speculum was installed to waiting to detect the vehicle on the elevating platform, the shifting sledge on fixed mounting have the lifter of perpendicular to base, install the lift staple bolt on the lifter, fixed mounting has clamping bolt on the lift staple bolt, photoelectric sensor fixed mounting be close to one side of speculum in the lift staple bolt.

By adopting the technical scheme, the reflector is fixedly arranged on the tire of the vehicle to be detected before measurement. And finally, adjusting the position of the lifting hoop to enable the light beam emitted by the light emitter to be received by the light emitter after being reflected by the reflector. And finally, fixing the position of the lifting hoop through a clamping bolt. During measurement, when the wheel rotates for one circle, the light receiver receives the light beam emitted by the primary light emitter, and the time interval between the light receiver receiving two adjacent signals or the number of times the light receiver receives the signals in a period of time can be obtained. Finally, the rotation speed of the vehicle tyre can be obtained according to the diameter of the wheel. The tire bead is well suitable for tires of various models and sizes, and the application range is wider.

The utility model discloses further set up to: the cross section of the lifting rod is not circular, and the shape of the hole on the inner side of the lifting hoop is matched with the shape of the cross section of the lifting rod.

Through adopting above-mentioned technical scheme, when removing the lift staple bolt, be difficult for appearing photoelectric sensor pivoted phenomenon on the lifter, make photoelectric sensor's position more stable, the data that the measurement was come out are more accurate.

The utility model discloses further set up to: the lifter on fixed mounting have the lifter, fixed mounting has the screw thread regulation pole parallel with the lifter on removing the slider, has seted up lifting hole and regulation hole on the lifter, the cross section in lifting hole equals with the lifter cross section and the lifter wears to establish in the lifting hole, the medial surface in regulation hole is the smooth surface, and the screw thread regulation pole wears to establish in the regulation hole, the screw thread regulation pole on install a lift section of thick bamboo through the screw thread, the bottom surface laminating of a lift section of thick bamboo and lifter.

Through adopting above-mentioned technical scheme, when adjusting the position of lift staple bolt, place the lift staple bolt on the elevating platform earlier, later through rotating a lift section of thick bamboo, make the elevating platform remove to the position that needs, screw up the position that comes the lift staple bolt with clamping bolt at last and fix. Compared with the position of the lifting hoop which is directly adjusted, the position of the lifting hoop can be finely adjusted, the light beam difference emitted by the light emitter can be received by the light receiver at the same time, fine adjustment can be more accurately performed, and therefore measured data are more accurate.

The utility model discloses further set up to: the lifting cylinder is characterized in that the upper end of the lifting cylinder is fixedly connected with a lifting ring, the axis of the lifting ring and the axis of the lifting cylinder are in the same straight line, and the radius of the outer side surface of the lifting ring is not larger than the distance between the lifting rod and the threaded adjusting rod.

Through adopting above-mentioned technical scheme, the lifting ring has increased the area of contact between a lift section of thick bamboo and the elevating platform to can be more stable prop up the elevating platform, make the difficult phenomenon that rocks of appearing of elevating platform, keep the steady of elevating platform.

The utility model discloses further set up to: remove the slider on fixed mounting have a vertical installation section of thick bamboo, the medial surface of installation section of thick bamboo is provided with the screw thread, the lifter bottom set up the screwed round bar for the lateral surface, lifter and screw thread adjusting lever all wear to establish in the installation section of thick bamboo through the screw thread.

Through adopting above-mentioned technical scheme, can be convenient install lifter and screw thread adjusting lever on removing the slider to can change the lifter and the screw thread adjusting lever of different length as required, thereby can be fine be applicable to the tire that waits to detect the vehicle of multiple equidimension.

The utility model discloses further set up to: the movable slide rail is a cylindrical linear guide rail, a limiting clamp is arranged on the cylindrical linear guide rail, and one limiting clamp is respectively arranged on two sides of the movable slide block.

Through adopting above-mentioned technical scheme, when removing the slider and removing on cylindrical linear guide, remove more steadily. Through clamping the upper limiting clamp on the cylindrical linear guide rail, the position of the movable sliding block can be conveniently fixed, and the use is simple and convenient.

The utility model discloses further set up to: the back surface of the reflector is connected with a binding belt, and the binding belt is bound on a tire of a vehicle to be detected.

By adopting the technical scheme, when facing different tires of vehicles to be detected, the reflector can be conveniently fixed on the tire casing through the binding belt. And while fixing, can be according to actual conditions come to fill into the cushion between the tire of waiting to detect the vehicle and the speculum to make the speculum keep vertical and parallel with the removal slide rail. The measurement accuracy is further improved.

The utility model discloses further set up to: photoelectric sensor on fixed mounting have the light screen, seted up on the light screen and penetrated the hole, and photoelectric sensor wears to establish and penetrates downtheholely, the light screen perpendicular to base just is parallel with the sliding rail.

Through adopting above-mentioned technical scheme, when calibration photoelectric sensor's position, the light beam throws photoelectric sensor under the reflection of speculum, if the deviation appears in the position of speculum, can see the position of light spot easily on the light screen to be convenient for adjust the position of speculum, this light screen is fine has played the effect of assistance-localization real-time.

To sum up, the utility model discloses a beneficial technological effect does:

1. When facing vehicle tires of different sizes, the vehicle speed is well measured, and the application range is wide;

2. The method has high measurement precision and small measurement error.

Drawings

FIG. 1 is a schematic structural view of the utility model after a vehicle to be detected is placed thereon;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is an enlarged schematic view of portion B of FIG. 1;

Fig. 4 is a schematic structural diagram of the photoelectric measurement apparatus.

Reference numerals: 1. a base; 11. a lifting device; 12. a photoelectric measuring device; 2. moving the slide rail; 21. moving the slide block; 22. mounting the cylinder; 23. a lifting rod; 24. a lifting cylinder; 25. a lifting ring; 26. a limiting clamp; 27. a threaded adjusting rod; 3. a lifting block; 31. an adjustment hole; 4. lifting the hoop; 41. clamping the bolt; 42. a mirror; 43. a binding band; 44. a visor; 45. and a hole is penetrated.

Detailed Description

the present invention will be described in further detail with reference to the accompanying drawings.

as shown in fig. 1 and 2, a vehicle speed measuring device includes a base 1, a lifting device 11 mounted on the upper side of the base 1, and an electro-optical measuring device 12 (shown in fig. 3). The lifting device 11 is an automobile lifting platform, and the lifting device 11 is fixedly arranged at the center of the upper surface of the base 1.

As shown in fig. 2 and 3, a movable slide rail 2 is fixedly mounted on the base 1, the movable slide rail 2 is a cylindrical linear guide rail, a movable slider 21 moving along the cylindrical linear guide rail is mounted on the cylindrical linear guide rail, two limiting clamps 26 are mounted on one cylindrical guide rail, and one of the two sides of the movable slider 21 is mounted on each of the two cylindrical guide rails. Two installation cylinders 22 are fixedly installed on the movable sliding block 21, the axes of the installation cylinders 22 are perpendicular to the upper surface of the base 1, and the inner side surface of the lifting shaft is provided with threads. The two installation cylinders 22 are internally provided with a lifting rod 23 and a threaded adjusting rod 27 through threads respectively, the bottom end of the lifting rod 23 is a round rod with threads arranged on the outer side surface, and the upper end of the lifting rod 23 is a square rod. The thread adjusting rod 27 is sleeved with a lifting cylinder 24, the upper end of the lifting cylinder 24 is integrally formed with a lifting ring 25, and the axes of the lifting ring 25, the lifting cylinder 24 and the adjusting threaded rod are all located on the same straight line. The radius of the outer side surface of the lifting ring 25 is slightly smaller than the distance between the lifting rod 23 and the threaded adjusting rod 27. The lifting block 3 is installed on the upper side of the lifting cylinder 24, a lifting hole and an adjusting hole 31 are formed in the lifting block 3, the cross section of the lifting hole is equal to that of the upper end of the lifting rod 23, the lifting rod 23 is arranged in the lifting hole in a penetrating mode, the inner side face of the adjusting hole 31 is a smooth face, and the thread adjusting rod 27 is arranged in the adjusting hole 31 in a penetrating mode.

As shown in fig. 3 and 4, the photoelectric measuring device 12 is a photoelectric sensor including a light emitter and a light receiver. The back of the photoelectric sensor is fixedly provided with a lifting hoop 4, the shape of a hole on the inner side of the lifting hoop 4 is the same as the shape of the cross section of the lifting rod 23, and the lifting hoop 4 is fixedly provided with a clamping bolt 41. When the lifting hoop 4 is moved, the phenomenon that the photoelectric sensor rotates on the lifting rod 23 is not easy to occur, so that the position of the photoelectric sensor is more stable. The vehicle to be inspected is parked on the lifting device 11 (shown in fig. 1) and the lifting device 11 is raised. The reflector 42 is provided on the tire of the vehicle to be inspected, the binding band 43 is adhered to the back surface of the reflector 42, and the binding band 43 is bound to the tire of the vehicle to be inspected. Fixed mounting has light screen 44 on photoelectric sensor, has seted up on the light screen 44 and has worn to establish in wearing hole 45, and photoelectric sensor wears to establish in hole 45, and light screen 44 perpendicular to base 1 just is parallel with moving slide 2. When the position of the photosensor is calibrated, the position of the light spot can be easily seen on the light shielding plate 44, thereby facilitating adjustment of the position of the mirror 42.

In actual use, the lifting device 11 for the vehicle to be inspected is lifted, and the reflecting mirror 42 is fixedly mounted on the tire of the vehicle to be inspected. Then, the position of the movable slide block 21 and the position of the lifting hoop 4 are adjusted, so that the light beams emitted by the light emitter are received by the light emitter after being reflected by the reflecting mirror 42. The position of the lifting hoop 4 is finely adjusted by the lifting cylinder 24, the position of the movable slider 21 is fixed by the limit clamp 26, and the position of the lifting hoop 4 is fixed by the clamping bolt 41, so that the position of the photoelectric measuring device 12 is fixed. During measurement, when the wheel rotates for one circle, the light receiver receives the light beam emitted by the primary light emitter, and the time interval between the light receiver receiving two adjacent signals or the number of times the light receiver receives the signals in a period of time can be obtained. Finally, the rotating speed of the vehicle tire can be calculated according to the diameter of the wheel. The tire bead is well suitable for tires of various models and sizes, and the application range is wider.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a speed of a motor vehicle measurer, includes base (1), installs elevating gear (11) and photoelectric measurement device (12) at base (1) upside, its characterized in that: elevating gear (11) be the car elevating platform, photoelectric measurement device (12) be photoelectric sensor, photoelectric sensor includes light emitter and light receiver, base (1) on install removal slide rail (2) and along removal slider (21) that removal slide rail (2) removed, install speculum (42) on waiting to detect the tire of vehicle, remove slide rail (2) and be located the one side that the speculum (42) were installed to waiting to detect the vehicle on the elevating platform, removal slider (21) on fixed mounting have lifter (23) perpendicular to base (1), install lift staple bolt (4) on lifter (23), fixed mounting has clamping bolt (41) on lift staple bolt (4), photoelectric sensor fixed mounting be close to one side of speculum (42) in lift staple bolt (4).

2. A vehicle speed measurer as claimed in claim 1, wherein: the cross section of the lifting rod (23) is not circular, and the shape of the hole on the inner side of the lifting hoop (4) is matched with the shape of the cross section of the lifting rod (23).

3. A vehicle speed measurer as claimed in claim 2, wherein: lifter (23) on fixed mounting have lifter (3), fixed mounting has screw thread adjusting lever (27) parallel with lifter (23) on removing slider (21), lifting hole and regulation hole (31) have been seted up on lifter (3), the cross section in lifting hole equals and lifter (23) cross section and lifter (23) wears to establish in the lifting hole, the medial surface of regulation hole (31) is the smooth surface, and screw thread adjusting lever (27) wear to establish in regulation hole (31), screw thread adjusting lever (27) on install through the screw thread and go up and down a section of thick bamboo (24), go up and down a section of thick bamboo (24) and the bottom surface laminating of lifter (3).

4. A vehicle speed measurer as claimed in claim 3, wherein: the lifting cylinder (24) upper end fixedly connected with lift ring (25), the axis of lift ring (25) and the axis of lift cylinder (24) are the collinear, and the radius of the lateral surface of lift ring (25) is not more than the interval between lifter (23) and screw thread adjusting lever (27).

5. a vehicle speed measurer as claimed in claim 4, wherein: remove slider (21) on fixed mounting have a vertical installation section of thick bamboo (22), the medial surface of installation section of thick bamboo (22) is provided with the screw thread, lifter (23) bottom set up the screwed round bar for the lateral surface, lifter (23) and screw thread adjusting lever (27) are all worn to establish in installation section of thick bamboo (22) through the screw thread.

6. A vehicle speed measurer as claimed in claim 1, wherein: the movable sliding rail (2) is a cylindrical linear guide rail, a limiting clamp (26) is arranged on the cylindrical linear guide rail, and one limiting clamp (26) is respectively arranged on two sides of the movable sliding block (21).

7. A vehicle speed measurer as claimed in claim 1, wherein: the back surface of the reflector (42) is connected with a binding belt (43), and the binding belt (43) is bound on the tire of the vehicle to be detected.

8. A vehicle speed measurer as claimed in claim 1, wherein: photoelectric sensor on fixed mounting have light screen (44), seted up on light screen (44) and worn hole (45), and photoelectric sensor wears to establish in wearing hole (45), light screen (44) perpendicular to base (1) and parallel with movable slide rail (2).