WO2022082910A1

WO2022082910A1 - Detection device for extreme speed test of automobile

Info

Publication number: WO2022082910A1
Application number: PCT/CN2020/129581
Authority: WO
Inventors: 罗必锋
Original assignee: 罗必锋
Priority date: 2020-10-22
Filing date: 2020-11-18
Publication date: 2022-04-28
Also published as: CN112345265A

Abstract

A detection device for an extreme speed test of an automobile, comprising a ranging speed sensor (1), a protective cover (2) and a top plate (3), wherein a mounting plate (4) is fixedly connected to the bottom of the ranging speed sensor (1), a movable groove (5) is provided inside the top plate (3), a movable rod (6) is fixedly connected between both sides of an inner wall of the movable groove (5), and a sliding block (7) is slidably connected to a surface of the movable rod (6). In the detection device for the extreme speed test of the automobile, the mounting plate (4) is fixedly connected to the bottom of the ranging speed sensor (1), so that the ranging speed sensor (1) can be prevented from being damaged due to an external impact. In addition, mounting of the ranging speed sensor (1) is relatively simple, can be completed without the aid of a tool, and is easy to operate. A vertical plate (14) is fixedly connected to the bottom of a top plate (3), so that the height of the ranging speed sensor (1) can be adjusted according to different heights of measured vehicles and different environments where the ranging speed sensor (1) is placed, thereby improving the detection precision.

Description

A kind of testing equipment for vehicle speed test

technical field

The invention relates to the technical field of automobile detection, in particular to a detection device for extreme speed test of automobiles.

Background technique

Vehicle inspection is an inspection to determine the technical condition or working ability of the vehicle. During the use of the vehicle, with the extension of the use time (or the increase of the mileage), its parts are gradually worn, corroded, deformed, aged, and the lubricating oil deteriorates, etc. , causing the clearance of the matching pair to become larger, causing loose movement, vibration, noise, air leakage, water leakage, oil leakage, etc., resulting in a decline in the technical performance of the car. The core of car maintenance work (or car maintenance work) is to "maintain" the car. The technical condition is in good condition. When testing the extreme speed of the car, the ranging and speed measuring sensor will be used for detection. The ranging and speed measuring sensor is an instrument that can measure the distance and speed of the displacement of the object. Two laser ranging with a specific time interval to obtain the moving distance of the object to be measured in this period of time, so as to obtain the moving speed of the object to be measured, which has this great advantage compared with traditional ranging and speed sensors, and It is also a new type of measuring instrument. With the rise of precision manufacturing and the need to save costs, the non-contact laser ranging speed sensor will gradually replace the current contact ranging speed sensor on the market. The distance measuring speed sensor is LDM301 laser distance measuring speed sensor, which is based on the principle of laser pulse reflection time difference method. Compared with the traditional distance measuring speed sensor, it is suitable for large range measurement, has a high response frequency, and has flexible measurement and high precision.

When the car is performing the speed test, sometimes it will be tested on a long straight road outdoors. The distance measuring speed sensor will be placed on the roadside to detect the car, usually it is placed directly on the rack , there is no certain protection for it, and the installation itself is cumbersome and requires more tools to complete, and when it is placed on the roadside, the height of the vehicle that needs to be detected is different, and the height of its bracket cannot be adjusted. This makes the overall use more inconvenient, and after a long time of outdoor use, the distance measuring speed sensor itself will generate a certain amount of heat. If the heat dissipation is not carried out in time, its service life will be shortened.

technical problem

In view of the deficiencies of the prior art, the present invention provides a detection device for vehicle extreme speed test, which solves the problem that the distance measuring and speed measuring sensor itself is not protected to a certain extent, and the installation itself is cumbersome and requires more tools to complete, Moreover, when it is placed on the roadside, the height of the vehicle to be detected is different, and the height of its bracket cannot be adjusted, which makes the overall use more inconvenient, and after a long time of outdoor use, the distance measuring and speed measuring sensor itself will produce a certain amount of noise. If the heat is not dissipated in time, it will shorten its service life.

technical solutions

In order to achieve the above purpose, the present invention is achieved through the following technical solutions: a detection device for vehicle extreme speed testing, comprising a distance measuring speed sensor, a protective cover and a top plate, the bottom of the distance measuring speed sensor is fixedly connected with a mounting plate, and the top plate. There is a movable groove in the interior of the movable groove, and a movable rod is fixedly connected between the two sides of the inner wall of the movable groove, and the surface of the movable rod is slidably connected with a slider, the top of the slider is fixedly connected with a shell, and the top of the shell is movable A vertical rod is connected, the top of the vertical rod penetrates the top plate and extends to the top of the top plate, one end of the vertical rod extending to the top of the top plate is fixedly connected with a positioning plate, and both sides of the bottom of the positioning plate are fixedly connected with clamping rods , the bottom end of the clamping rod penetrates the top plate and extends to the interior of the top plate, the bottoms of the two sides of the protective cover are fixedly connected with a horizontal plate, and the top of the horizontal plate is threadedly connected with a first screw, the first screw The bottom end penetrates the top plate and extends to the interior of the top plate, the bottom of the top plate is fixedly connected with a vertical plate, and the surface of the vertical plate is movably connected with a box body, the middle part of one side of the box body is fixedly connected with a motor cover, and the inner wall of the motor cover The bottom of the vertical plate is fixedly connected with a motor, the output end of the motor is fixedly connected with a gear, and one side of the vertical plate is fixedly connected with a tooth plate that meshes with the gear.

Preferably, a first spring is fixedly connected on the surface of the movable rod and located between one side of the inner wall of the movable groove and one side of the slider, and the top of the top plate and the top of the mounting plate are provided with corresponding vertical rods. A matching chute is provided on the top of the mounting plate, a clamping hole adapted to the clamping rod is provided, and a handle is fixedly connected to the top of the positioning plate.

Preferably, a stopper is fixedly connected to one end of the vertical rod extending to the inside of the casing, and a second spring is fixedly connected to the surface of the vertical rod and located between the top of the block and the top of the inner wall of the casing.

Preferably, both sides of the top of the top plate are provided with first threaded holes adapted to the first screws, and both sides of the surface of the protective cover are fixedly connected with sliding plates, between the opposite sides of the two sliding plates. The L-shaped plate is slidably connected, and the inside of the slide plate is provided with a limit groove that is adapted to the L-shaped plate. Both sides of the top of the protective cover are fixedly connected with connecting rods, and the top of the connecting rod penetrates the L-shaped plate. and extends to the top of the L-shaped plate, and through holes adapted to the connecting rods are opened on both sides of the top of the L-shaped plate.

Preferably, ventilation grooves are provided on both sides of the protective cover, and a loop frame is fixedly connected to both sides of the protective cover at positions corresponding to the ventilation grooves, and the inner wall of the loop frame is fixedly connected with a loop frame. The inner wall of the circular frame is movably connected with a fixed frame, and the inner wall of the fixed frame is fixedly connected with a dustproof net.

Preferably, second screws are threaded on both sides of the top of the ring-shaped frame, the bottom ends of the second screws penetrate through the fixing frame and extend to the interior of the fixing frame, and both sides of the top of the fixing frame are provided with The second threaded hole is matched with the second screw, and both sides of the top of the inner wall of the protective cover are fixedly connected with the fan.

Preferably, scales are provided on the surface of the box body, and sliding bars are fixedly connected to the front and back between the top and bottom of the inner wall of the box, and movable blocks are slidably connected to the surfaces of the two sliding bars, and are movable One side of the block is fixedly connected to the surface of the riser.

Preferably, a U-shaped plate is fixedly connected to the other side of the vertical plate, one side of the U-shaped plate penetrates the box body and extends to the outside of the box body, and one side of the box body is provided with a U-shaped plate. A matching through slot is provided, and a pointer is fixedly connected to one side of the U-shaped plate extending to the outside of the box.

Preferably, a bottom plate is fixedly connected to the bottom of the box body, and a sleeve is fixedly connected around the top of the bottom plate, a support rod is movably connected to the top of the sleeve, and the top end of the support rod is fixedly connected to the bottom of the top plate.

Preferably, diagonal rods are fixedly connected to all sides of the bottom of the bottom plate, and support blocks are fixedly connected to the bottom ends of the diagonal rods.

beneficial effect

The invention provides a detection device for vehicle extreme speed test. Compared with the prior art, it has the following beneficial effects:

(1) The detection equipment for speed test of the vehicle is fixedly connected with a mounting plate through the bottom of the ranging speed sensor, and a movable groove is opened inside the top plate, and a movable rod is fixedly connected between the two sides of the inner wall of the movable groove, and the movable rod is movable. The surface of the rod is slidably connected with a slider, the top of the slider is fixedly connected with a casing, and the top of the casing is movably connected with a vertical rod, the top of the vertical rod penetrates the top plate and extends to the top of the top plate, and one end of the vertical rod extending to the top of the top plate is fixed The positioning plate is connected, the two sides of the bottom of the positioning plate are fixedly connected with a clamping rod, the bottom end of the clamping rod penetrates the top plate and extends to the inside of the top plate, the bottom of both sides of the protective cover is fixedly connected with a horizontal plate, and the top of the horizontal plate is connected A first screw is threadedly connected, the bottom end of the first screw penetrates the top plate and extends to the inside of the top plate, the bottom of the top plate is fixedly connected with a vertical plate, and the surface of the vertical plate is movably connected with a box body, and the middle part of one side of the box body is fixedly connected with a The motor cover, and the bottom of the inner wall of the motor cover is fixedly connected with a motor, the output end of the motor is fixedly connected with a gear, and one side of the vertical plate is fixedly connected with a tooth plate that meshes with the gear, and the distance measuring speed sensor is carried out using the protective cover. Certain protection can prevent the distance measuring and speed measuring sensor from being damaged by the impact of the outside world, and the distance measuring and speed measuring sensor is installed in a relatively simple way, which can be completed without tools and is easy to operate.

(2) The detection equipment for vehicle speed test is fixedly connected with a vertical plate through the bottom of the top plate, and the surface of the vertical plate is movably connected with a box body, and the middle part of one side of the box body is fixedly connected with a motor cover, and the inner wall of the motor cover is connected. The bottom is fixedly connected with a motor, the output end of the motor is fixedly connected with a gear, and one side of the vertical plate is fixedly connected with a tooth plate meshing with the gear, the surface of the box body is provided with a scale, and the top and bottom of the inner wall of the box are fixedly connected. The front and the back of the two sliding rods are fixedly connected with sliding rods, the surfaces of the two sliding rods are slidably connected with movable blocks, and one side of the movable blocks is fixedly connected with the surface of the vertical plate, and the other side of the vertical plate is fixedly connected with a U-shaped plate , one side of the U-shaped plate penetrates through the box and extends to the outside of the box, one side of the box is provided with a through slot that matches the U-shaped plate, and the side of the U-shaped plate that extends to the outside of the box is fixedly connected There is a pointer, which can adjust the height of the ranging and speed measuring sensor according to the different heights of the measured vehicles and the environment of the location where it is placed, which can improve the accuracy of detection.

(3) The testing equipment for speed testing of automobiles is provided with ventilation slots on both sides of the protective cover. Both sides of the protective cover and at the positions corresponding to the ventilation slots are fixedly connected with a loop frame, and the inner wall of the loop box is fixedly connected. A loop plate is fixedly connected, and a fixed frame is movably connected inside the loop frame, the inner wall of the fixed frame is fixedly connected with a dustproof net, and both sides of the top of the loop frame are threadedly connected with a second screw, and the bottom of the second screw is connected with a second screw. The end penetrates through the fixing frame and extends to the interior of the fixing frame, the top of the fixing frame is provided with a second threaded hole that is adapted to the second screw, and both sides of the top of the inner wall of the protective cover are fixedly connected with a fan. After the speed sensor has been used for a long time, the fan is used to dissipate heat, and detachable dust filters are installed on both sides of the protective cover, which can effectively prevent dust from entering.

Description of drawings

Fig. 1 is the perspective view of the structure of the present invention;

2 is a schematic structural diagram of a ranging and speed measuring sensor of the present invention;

3 is a schematic structural diagram of a mounting plate of the present invention;

Fig. 4 is the perspective view of the movable rod structure of the present invention;

Fig. 5 is the top view of the internal structure of the top plate of the present invention;

6 is a top view of the internal structure of the box of the present invention;

7 is a schematic structural diagram of a protective cover of the present invention;

8 is a cross-sectional view of the housing structure of the present invention.

In the picture: 1-distance measuring speed sensor, 2-protective cover, 3-top plate, 4-installation plate, 5-active groove, 6-active rod, 7-slider, 8-shell, 9-vertical rod, 10- Positioning plate, 11-clamping rod, 12-horizontal plate, 13-first screw, 14-vertical plate, 15-box, 16-motor cover, 17-motor, 18-gear, 19-tooth plate, 20- First spring, 21-chute, 22-card hole, 23-handle, 24-stop, 25-second spring, 26-first threaded hole, 27-slide plate, 28-L-shaped plate, 29-limit Slot, 30-connecting rod, 31-through hole, 32-ventilation slot, 33-return frame, 34-return plate, 35-fixed frame, 36-dust net, 37-second screw, 38-second Threaded hole, 39-fan, 40-slide rod, 41-movable block, 42-U-shaped plate, 43-pointer, 44-base plate, 45-sleeve, 46-support rod, 47-inclined rod, 48-support block , 49-through slot.

BEST MODE FOR CARRYING OUT THE INVENTION

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to FIGS. 1-8 , the present invention provides a technical solution: a detection device for vehicle extreme speed test, including a distance measuring speed sensor 1, a protective cover 2 and a top plate 3, the distance measuring speed sensor 1 is a distance that can displace an object And the instrument for measuring the speed, it is to carry out two laser ranging with a specific time interval on the measured object, obtain the moving distance of the measured object in this period of time, so as to obtain the moving speed of the measured object. Compared with the traditional ranging and speed sensor 1, it has this great advantage, and it is also a new type of measuring instrument. With the rise of today's precision manufacturing industry and the need to save costs, the non-contact laser ranging and speed sensor 1 will gradually replace it. The contact type ranging speed sensor 1 on the market now, and the commonly used laser ranging speed sensor 1 on the market is the LDM301 laser ranging speed sensor 1, which is based on the principle of laser pulse reflection time difference method, compared with the traditional ranging speed sensor 1 , it is suitable for large range measurement, has high response frequency, flexible measurement and high precision, using protective cover 2 to protect the distance measuring speed sensor 1 to a certain extent can prevent the distance measuring speed sensor 1 from being damaged by external impact. , and the distance measuring and speed measuring sensor 1 is installed in a relatively simple way, which can be completed without the aid of tools, and is easy to operate. The bottom of the distance measuring and speed measuring sensor 1 is fixedly connected with a mounting plate 4, and the inside of the top plate 3 is provided with a movable Slot 5, a movable rod 6 is fixedly connected between the two sides of the inner wall of the movable groove 5, and the surface of the movable rod 6 is slidably connected with a slider 7, the top of the slider 7 is fixedly connected with a casing 8, and the top of the casing 8 is movably connected There is a vertical rod 9, the top of the vertical rod 9 penetrates the top plate 3 and extends to the top of the top plate 3, one end of the vertical rod 9 extending to the top of the top plate 3 is fixedly connected with a positioning plate 10, and both sides of the bottom of the positioning plate 10 are fixedly connected with a card. Rod 11, the bottom end of the clamping rod 11 penetrates the top plate 3 and extends to the interior of the top plate 3, the bottoms of both sides of the protective cover 2 are fixedly connected with the horizontal plate 12, and the top of the horizontal plate 12 is threadedly connected with a first screw 13. The bottom end of a screw 13 penetrates through the top plate 3 and extends into the interior of the top plate 3. The bottom of the top plate 3 is fixedly connected with the vertical plate 14, and the surface of the vertical plate 14 is movably connected with the box body 15, and the middle part of one side of the box body 15 is fixedly connected with a box body 15. The motor cover 16 is fixedly connected to the bottom of the inner wall of the motor cover 16 with a motor 17 , the output end of the motor 17 is fixedly connected with a gear 18 , and one side of the vertical plate 14 is fixedly connected with a toothed plate 19 that meshes with the gear 18 .

In the present invention, a first spring 20 is fixedly connected on the surface of the movable rod 6 and located between the side of the inner wall of the movable slot 5 and the side of the slider 7, and the top of the top plate 3 and the top of the mounting plate 4 are provided with vertical and The rod 9 is fitted with a chute 21 , the top of the mounting plate 4 is provided with a clamping hole 22 fitted with the clamping rod 11 , and a handle 23 is fixedly connected to the top of the positioning plate 10 .

In the present invention, a stopper 24 is fixedly connected to one end of the vertical rod 9 extending to the inside of the housing 8 , and a second spring 25 is fixedly connected to the surface of the vertical rod 9 between the top of the block 24 and the top of the inner wall of the housing 8 .

In the present invention, both sides of the top of the top plate 3 are provided with first threaded holes 26 that are adapted to the first screws 13, and both sides of the surface of the protective cover 2 are fixedly connected with sliding plates 27. An L-shaped plate 28 is slidably connected between the sides, and the inside of the slide plate 27 is provided with a limit groove 29 that is adapted to the L-shaped plate 28. Both sides of the top of the protective cover 2 are fixedly connected with connecting rods 30. The connecting rods 30 The top end of the L-shaped plate 28 penetrates through the L-shaped plate 28 and extends to the top of the L-shaped plate 28 , and through holes 31 matching the connecting rod 30 are opened on both sides of the top of the L-shaped plate 28 .

In the present invention, both sides of the protective cover 2 are provided with ventilation grooves 32 , and both sides of the protective cover 2 and at the positions corresponding to the ventilation grooves 32 are fixedly connected with a return frame 33 , and the inner wall of the return frame 33 is fixedly connected with a The return plate 34, and the inside of the return frame 33 is movably connected with a fixing frame 35, and the inner wall of the fixing frame 35 is fixedly connected with a dustproof net 36.

In the present invention, second screws 37 are threadedly connected to both sides of the top of the ring-shaped frame 33 , the bottom ends of the second screws 37 penetrate through the fixing frame 35 and extend to the interior of the fixing frame 35 , and both sides of the top of the fixing frame 35 are opened There is a second threaded hole 38 that is matched with the second screw 37, and fans 39 are fixedly connected to both sides of the top of the inner wall of the protective cover 2. After the distance measuring and speed measuring sensor 1 is used for a long time, the fan 39 is used to dissipate heat. detachable dust nets 36 are provided on both sides of the protective cover 2, which can effectively prevent the entry of dust.

In the present invention, the surface of the box body 15 is provided with scales, and the front and back sides between the top and bottom of the inner wall of the box body 15 are fixedly connected with sliding rods 40, and the surfaces of the two sliding rods 40 are slidably connected with movable blocks 41. And one side of the movable block 41 is fixedly connected with the surface of the vertical plate 14 .

In the present invention, a U-shaped plate 42 is fixedly connected to the other side of the vertical plate 14 . One side of the U-shaped plate 42 penetrates the box body 15 and extends to the outside of the box body 15 . The plate 42 is adapted to the through groove 49, and the side of the U-shaped plate 42 extending to the outside of the box body 15 is fixedly connected with the pointer 43, which can measure the distance according to the different heights of the vehicles to be measured and the environment of the location where they are placed. Adjusting the height of the speed sensor 1 can improve the detection accuracy.

In the present invention, a bottom plate 44 is fixedly connected to the bottom of the box body 15 , and a sleeve 45 is fixedly connected to the top of the bottom plate 44 . bottom fixed connection.

In the present invention, oblique rods 47 are fixedly connected to all sides of the bottom of the bottom plate 44 , and support blocks 48 are fixedly connected to the bottom ends of the oblique rods 47 .

Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

When in use, hold the handle 23, pull the positioning plate 10 on the top of the top plate 3 to move in the opposite direction, then place the distance measuring speed sensor 1 on the top of the top plate 3, and then slowly pull the handle 23 to the position of the mounting plate 4. At the same time, the positioning plate 10 needs to be lifted up until the vertical rod moves to the position of the chute 21 on the mounting plate 4, and then the handle 23 is released. Under the pulling force of the second spring 25, the positioning plate 10 The clamping rod 11 at the bottom will be clamped into the clamping hole 22 on the mounting plate 4 to fix the mounting plate 4, and then cover the protective cover 2 on the top of the top plate 3, and the horizontal plate 12 on the protective cover 2 will also be in close contact. the top of the top plate 3, and then the horizontal plate 12 and the top plate 3 are fixed by the first screw 13, and the L-shaped plate 28 is inserted into the limit slot 29 on the slide plate 27, and the connecting rod 30 on the protective cover 2 will Insert the L-shaped plate 28, limit the position of the L-shaped plate 28, place the device on the side of the road that needs to be tested, the support block 48 is close to the ground, the inclined rod 47 plays a supporting and stable role, and then the L The pattern plate 28 moves upward to make it detach from the inside of the slide plate 27, and it can be used. The height of the distance measuring and speed measuring sensor 1 can be adjusted according to the actual vehicle to be detected, and the motor 17 can be activated through an external switch, and the motor 17 drives the gear 18. To rotate, the rotation of the gear 18 drives the tooth plate 19 to move, the tooth plate 19 drives the vertical plate 14 to move on the sliding rod 40, the vertical plate 14 pushes the top plate 3 to move, and the top plate will drive The support rod 46 moves in the sleeve 45, and the distance measuring speed sensor 1 is used to test the extreme speed of the car. After use, the fan 39 is started to dissipate heat inside the protective cover 2, and the hot air will be discharged from the ventilation slot 32. , and then remove the second screw 37 , remove the fixing frame 35 fixed in the return frame 33 , clean the dustproof net 36 , and then install it through the second screw 37 .

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion such that a process, method, article or device comprising a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims

A detection device for vehicle extreme speed testing, comprising a ranging and speed measuring sensor (1), a protective cover (2) and a top plate (3), characterized in that a mounting plate ( 4), and the inside of the top plate (3) is provided with a movable groove (5), the movable rod (6) is fixedly connected between the two sides of the inner wall of the movable groove (5), and the surface of the movable rod (6) is slidably connected There is a slider (7), the top of the slider (7) is fixedly connected with a casing (8), and the top of the casing (8) is movably connected with a vertical rod (9), the top of the vertical rod (9) passing through The top plate (3) extends to the top of the top plate (3), one end of the vertical rod (9) extending to the top of the top plate (3) is fixedly connected with a positioning plate (10), and two sides of the bottom of the positioning plate (10) are fixedly connected Both are fixedly connected with a clamping rod (11), the bottom end of the clamping rod (11) penetrates through the top plate (3) and extends to the interior of the top plate (3), and the bottoms of both sides of the protective cover (2) are fixedly connected with A horizontal plate (12), and the top of the horizontal plate (12) is threadedly connected with a first screw (13), and the bottom end of the first screw (13) penetrates through the top plate (3) and extends to the interior of the top plate (3), so A vertical plate (14) is fixedly connected to the bottom of the top plate (3), and a box body (15) is movably connected to the surface of the vertical plate (14), and a motor cover (15) is fixedly connected to the middle of one side of the box body (15). 16), and the bottom of the inner wall of the motor cover (16) is fixedly connected with a motor (17), the output end of the motor (17) is fixedly connected with a gear (18), and one side of the vertical plate (14) is fixedly connected with The tooth plate (19) meshing with the gear (18).
A detection device for vehicle extreme speed test according to claim 1, characterized in that: the surface of the movable rod (6) is located between one side of the inner wall of the movable groove (5) and one side of the slider (7). A first spring (20) is fixedly connected between the tops of the top plate (3) and the top of the mounting plate (4). The top of (4) is provided with a clamping hole (22) adapted to the clamping rod (11), and a handle (23) is fixedly connected to the top of the positioning plate (10).
A detection device for an automobile extreme speed test according to claim 1, characterized in that: a stopper (24) is fixedly connected to one end of the vertical rod (9) extending to the inside of the casing (8), and the vertical rod ( 9) and between the top of the stopper (24) and the top of the inner wall of the housing (8), a second spring (25) is fixedly connected.
The detection device for vehicle extreme speed test according to claim 1, characterized in that: both sides of the top of the top plate (3) are provided with first threaded holes (26) adapted to the first screws (13). ), and a sliding plate (27) is fixedly connected to both sides of the surface of the protective cover (2), an L-shaped plate (28) is slidably connected between the opposite sides of the two sliding plates (27), and the sliding plate (27) The interior of the protective cover (2) is provided with a limit groove (29) that is adapted to the L-shaped plate (28). Both sides of the top of the protective cover (2) are fixedly connected with connecting rods (30). The connecting rods (30) The top end penetrates the L-shaped plate (28) and extends to the top of the L-shaped plate (28). Both sides of the top of the L-shaped plate (28) are provided with through holes (31) that are adapted to the connecting rod (30). ).
The detection device for vehicle extreme speed test according to claim 1, characterized in that: both sides of the protective cover (2) are provided with ventilation grooves (32), and both sides of the protective cover (2) are provided with ventilation grooves (32). A return frame (33) is fixedly connected to the positions corresponding to the ventilation groove (32), the inner wall of the return frame (33) is fixedly connected with a return plate (34), and the inner wall of the return frame (33) is fixedly connected with a return plate (34). A fixing frame (35) is movably connected, and a dustproof net (36) is fixedly connected to the inner wall of the fixing frame (35).
The detection device for vehicle extreme speed test according to claim 5, characterized in that: both sides of the top of the return frame (33) are threadedly connected with second screws (37), and the second screws (37) ) penetrates through the fixing frame (35) and extends to the interior of the fixing frame (35), and both sides of the top of the fixing frame (35) are provided with second threaded holes adapted to the second screws (37). (38), and fans (39) are fixedly connected to both sides of the top of the inner wall of the protective cover (2).
The detection device for vehicle extreme speed test according to claim 1, characterized in that: the surface of the box (15) is provided with scales, and the front and back between the top and bottom of the inner wall of the box (15) are both A sliding rod (40) is fixedly connected, the surfaces of the two sliding rods (40) are both slidably connected with a movable block (41), and one side of the movable block (41) is fixedly connected with the surface of the vertical plate (14).
The detection device for vehicle extreme speed test according to claim 7, characterized in that: a U-shaped plate (42) is fixedly connected to the other side of the vertical plate (14), and the U-shaped plate (42) is One side penetrates through the box body (15) and extends to the outside of the box body (15). A pointer (43) is fixedly connected to one side of the pattern plate (42) extending to the outside of the box body (15).
The detection device for vehicle extreme speed test according to claim 1, wherein a bottom plate (44) is fixedly connected to the bottom of the box body (15), and a cover is fixedly connected around the top of the bottom plate (44). A cylinder (45), the top end of the sleeve (45) is movably connected with a support rod (46), and the top end of the support rod (46) is fixedly connected with the bottom of the top plate (3).
The detection device for vehicle extreme speed test according to claim 9, characterized in that: diagonal rods (47) are fixedly connected around the bottom of the bottom plate (44), and the bottom ends of the diagonal rods (47) are fixedly connected There are support blocks (48).