Detection alarm device for vehicle debugging

Abstract

The invention discloses a detection alarm device for vehicle debugging, and belongs to the technical field of vehicle debugging. A detection alarm device for vehicle debugging comprises an operation table, sliding grooves are formed in the two sides of the upper end of the operation table, racks are connected to the two ends of an inner cavity of each sliding groove, and rotation of a tire can drive a circular rotating block, a first circular connecting rod and a rectangular triggering block to rotate; the rectangular trigger block is in contact with a connecting groove formed in the upper end of the sensor every time the rectangular trigger block rotates by one circle, the number of times of contact between the rectangular trigger block and the connecting groove is equal to the number of turns of rotation of the tire, at the moment, the automobile is braked under the condition that the speed of 100 strides per hour, and if the number of times of contact between the rectangular trigger block and the connecting groove exceeds the set range of turns, the automobile is braked. If yes, an alarm is given and shows that the performance of the braking system of the automobile is poor, so that the automobile with the poor braking system is screened out, the accident occurrence probability is reduced, and the safety of a driver is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle debugging, and more specifically to a detection alarm device for vehicle debugging. Background Art

[0002] The detection alarm device for vehicle debugging is a device used to monitor various parameters of the vehicle in real time during the vehicle debugging and testing process, and to send out an alarm signal when an abnormal situation is detected. Its main function is to ensure the safety of vehicle debugging, improve debugging efficiency, and avoid potential mechanical or electronic failures that may cause harm to the vehicle and personnel.

[0003] At present, vehicle debugging mainly involves debugging the vehicle engine, fuel system, ignition system, cooling system and exhaust emissions, but the braking distance of the vehicle is easily overlooked. When the engine speed reaches 3000 revolutions per second, the car's speed will reach 100 miles per hour. If the braking distance of the car at a speed of 100 miles per hour exceeds the range of 38-42 meters, it means that the braking system performance of the car is poor, which is likely to increase the probability of accidents. Summary of the invention

[0004] The object of the present invention is to provide a detection alarm device for vehicle debugging to solve the problems raised in the above background technology.

[0005] A detection alarm device for vehicle debugging, comprising an operating table, wherein slide grooves are provided on both sides of the upper end of the operating table, racks are connected to both ends of the inner cavity of each slide groove, and a moving component is connected to the inner cavity of each slide groove, and an adjustment component is connected to both sides of the upper end of each moving component, an alarm component is connected to one end of the adjustment component, and a speed test component is connected to the middle part of the operating table;

[0006] The adjusting assembly comprises a circular rotating block, a second circular sliding block and a plurality of second rectangular connecting rods, the circular rotating block is connected to a first driving motor at one end close to the speed testing assembly, a first bidirectional threaded rod is sleeved at an output end of the first driving motor, a first circular sliding block is sleeved at one end of the first bidirectional threaded rod close to the first driving motor, a plurality of first rectangular connecting rods are connected to one end of the first circular sliding block away from the circular rotating block, a rectangular connecting plate is connected to one end of each of the first rectangular connecting rods away from the first circular sliding block, and a connecting port is connected to one end of each of the rectangular connecting plates away from the circular rotating block;

[0007] The alarm component includes a first circular connecting rod, one end of the first circular connecting rod away from the adjustment component is connected to a rectangular trigger block, the lower end of the rectangular trigger block is connected to a sensor, one side of the sensor is connected to an alarm, and the other side of the sensor is connected to a speed sensing line.

[0008] Preferably, each of the first rectangular connecting rods is connected to a second rectangular connecting rod at one end close to the rectangular connecting plate, the second rectangular connecting rod is connected to a second circular sliding block at one end away from the rectangular connecting plate, and the circular rotating block is connected to a guide rod at one end close to the first bidirectional threaded rod.

[0009] Preferably, the first circular connecting rod is connected to the circular rotating block, the guide rod passes through the first circular sliding block and the second circular sliding block, and a rectangular trigger groove is opened at the upper end of the sensor, and the rectangular trigger groove fits with the rectangular trigger block.

[0010] Preferably, the moving component includes a rectangular moving block, a second bidirectional threaded rod is connected to the inner cavity of the rectangular moving block, both ends of the second bidirectional threaded rod are sleeved with rectangular sliding blocks, one end of the second bidirectional threaded rod is connected to a first friction wheel, the end of the first friction wheel away from the second bidirectional threaded rod is connected to a second drive motor, and the alarm is installed on the upper end surface of the rectangular moving block.

[0011] Preferably, a second circular rotating rod is connected to the front end inner cavity of the rectangular moving block, both ends of the second circular rotating rod are connected to the first gear, and the end of the second circular rotating rod away from the second driving motor is connected to the third driving motor, and a circular hole is opened at one end of the rectangular sliding block facing the speed testing component, and the circular rotating block is rotatably connected to the rectangular sliding block through the circular hole.

[0012] Preferably, the speed testing assembly includes a first speed measuring assembly, both ends of the first speed measuring assembly are connected to a third bidirectional threaded rod, one end of the third bidirectional threaded rod is connected to a first rotating belt, an end of the first rotating belt away from the third bidirectional threaded rod is sleeved with a second friction wheel, and an end of the third bidirectional threaded rod away from the first rotating belt is connected to a second speed measuring assembly.

[0013] Preferably, the first speed measuring assembly comprises a first speed measuring roller, both ends of the first speed measuring roller are rotatably connected with T-shaped sliding blocks, and one end of the T-shaped sliding block away from the first speed measuring roller is connected with a second speed measuring roller.

[0014] Preferably, the third bidirectional threaded rod is slidably connected to the T-shaped sliding block, the first friction wheel and the second friction wheel are in the same plane, the first gear is meshed with the rack by passing through the lower end surface of the rectangular moving block, and when the first gear moves to the end of the rack, the first friction wheel will mesh with the second friction wheel, and the alarm component installed at one end of the operating table is connected to the adjustment component close to the second friction wheel, and the alarm component installed at the other end of the operating table is connected to the adjustment component away from the second friction wheel.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] 1. In the present invention, the rotation of the tire drives the rotation of the circular rotating block, the first circular connecting rod and the rectangular trigger block, and each time the rectangular trigger block rotates one circle, it contacts the connecting groove provided on the upper end of the sensor, which means that the number of times the rectangular trigger block contacts the connecting groove is equal to the number of circles the tire rotates. At this time, when the car brakes at a speed of 100 miles per hour, if the number of times the rectangular trigger block contacts the connecting groove exceeds the set number of circles, an alarm will be sounded, indicating that the braking system performance of the car is poor, thereby screening out vehicles with poor braking systems, thereby reducing the probability of accidents and improving the safety of drivers.

[0017] 2. In the present invention, when the first friction wheel is meshed with the second friction wheel, the second driving motor is started to move the rectangular sliding block along the second bidirectional threaded rod, and the first speed measuring assembly and the second speed measuring assembly are moved along the third bidirectional threaded rod, until the distance between the center of the circular rotating block at one end of the second bidirectional threaded rod and the center of the circular rotating block at the other end of the second bidirectional threaded rod is equal to the wheelbase of the vehicle, and at the same time, the distance between the midpoint of the T-shaped sliding block in the first speed measuring assembly and the midpoint of the T-shaped sliding block in the second speed measuring assembly is equal to the wheelbase of the vehicle, so that the speed testing assembly and the moving assembly can generate a linkage efficiency, and the speed testing assembly and the moving assembly can be adjusted according to the wheelbase of the vehicle, thereby increasing the diversity of vehicle debugging and improving the work efficiency of vehicle debugging.

[0018] 3. In the present invention, by driving the first driving motor, the rectangular connecting plate is driven to extend in all directions until the distance from the rectangular connecting plate to the center of the first bidirectional threaded rod is equal to the distance from the center of the tire to the wheel hub fixing bolt. In this way, the diameter of the circle formed by a plurality of rectangular connecting plates can be adjusted according to tires of different sizes, so that the device can be used to adjust cars with tires of different sizes, thereby increasing the diversity of car adjustment by the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the internal component structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the regulating component of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the alarm component of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the mobile component of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the speed test component of the present invention;

[0025] Figure 7 It is a schematic structural diagram of the first speed measuring component of the present invention.

[0026] Explanation of the reference numerals in the figure: 1, operating table; 2, slide; 3, rack; 4, moving assembly; 401, rectangular moving block; 402, second bidirectional threaded rod; 403, rectangular sliding block; 404, first friction wheel; 405, second driving motor; 406, third driving motor; 407, second circular rotating rod; 408, first gear; 5, speed testing assembly; 501, first speed measuring assembly; 502, third bidirectional threaded rod; 503, first rotating belt; 504, second friction wheel; 505, second speed measuring assembly; 506, first speed measuring roller; 507, T-shaped sliding block; 508, second speed measuring roller; 6, adjustment component; 601, circular rotating block; 602, first driving motor; 603, first bidirectional threaded rod; 604, first circular sliding block; 605, first rectangular connecting rod; 606, rectangular connecting plate; 607, connecting port; 608, second rectangular connecting rod; 609, second circular sliding block; 610, guide rod; 7, alarm component; 701, first circular connecting rod; 702, rectangular trigger block; 703, sensor; 704, alarm; 705, speed sensing line. DETAILED DESCRIPTION

[0027] Example: See Figure 1 and Figure 2 A detection alarm device for vehicle debugging includes an operating table 1, wherein chutes 2 are provided on both sides of the upper end of the operating table 1, racks 3 are connected to both ends of the inner cavity of each chute 2, and a moving component 4 is connected to the inner cavity of each chute 2, and an adjustment component 6 is connected to both sides of the upper end of each moving component 4, an alarm component 7 is connected to one end of the adjustment component 6, and a speed test component 5 is connected to the middle part of the operating table 1;

[0028] See also Figure 3 , the adjustment component 6 includes a circular rotating block 601, a second circular sliding block 609 and a plurality of second rectangular connecting rods 608, the end of the circular rotating block 601 close to the speed test component 5 is connected to the first driving motor 602, the output end of the first driving motor 602 is sleeved with a first bidirectional threaded rod 603, the end of the first bidirectional threaded rod 603 close to the first driving motor 602 is sleeved with a first circular sliding block 604, the end of the first circular sliding block 604 away from the circular rotating block 601 is connected to a plurality of first rectangular connecting rods 605, the end of each first rectangular connecting rod 605 away from the first circular sliding block 604 is connected to a rectangular connecting plate 606, and the end of each rectangular connecting plate 606 away from the circular rotating block 601 is connected to a connecting port 607;

[0029] See also Figure 4 The alarm component 7 includes a first circular connecting rod 701, and the end of the first circular connecting rod 701 away from the adjustment component 6 is connected to a rectangular trigger block 702, and the lower end of the rectangular trigger block 702 is connected to a sensor 703, one side of the sensor 703 is connected to an alarm 704, and the other side of the sensor 703 is connected to a speed sensing line 705. The sensor 703 will set the range of the number of contacts between the rectangular trigger block 702 and the connecting groove when each size of tire is braked. For example, the number of contacts for an 18-inch tire is between 20 and 23 times. If the number of contacts exceeds the range, an alarm will be issued, indicating that the braking effect of the car is poor.

[0030] Specifically, the rotation of the tire will drive the rotation of the circular rotating block 601, the first circular connecting rod 701 and the rectangular trigger block 702, and each time the rectangular trigger block 702 rotates one circle, it will contact the connecting groove opened at the upper end of the sensor 703, which means that the number of times the rectangular trigger block 702 contacts the connecting groove is equal to the number of circles the tire rotates. At this time, when the car brakes at a speed of 100 miles per hour, if the number of times the rectangular trigger block 702 contacts the connecting groove exceeds the set number of circles, an alarm will be sounded, indicating that the braking system performance of the car is poor, thereby screening out vehicles with poor braking systems, thereby reducing the probability of accidents and improving the safety of drivers.

[0031] See also Figure 3 One end of each first rectangular connecting rod 605 close to the rectangular connecting plate 606 is connected to a second rectangular connecting rod 608, one end of the second rectangular connecting rod 608 away from the rectangular connecting plate 606 is connected to a second circular sliding block 609, and one end of the circular rotating block 601 close to the first bidirectional threaded rod 603 is connected to a guide rod 610.

[0032] The first circular connecting rod 701 is connected to the circular rotating block 601, the guide rod 610 passes through the first circular sliding block 604 and the second circular sliding block 609, and a rectangular trigger groove is opened at the upper end of the sensor 703, and the rectangular trigger groove fits with the rectangular trigger block 702, and the end of the speed sensing line 705 is connected to the main line of the engine, so as to sense the rotation of the engine. When the engine speed reaches 3000 revolutions per second, the speed of the vehicle reaches one hundred miles, thereby starting the sensor 703.

[0033] Specifically, by driving the first driving motor 602, the rectangular connecting plate 606 will be driven to extend in all directions until the distance from the rectangular connecting plate 606 to the center of the first bidirectional threaded rod 603 is equal to the distance from the center of the tire to the wheel hub fixing bolt. In this way, the diameter of the circle formed by several rectangular connecting plates 606 can be adjusted according to tires of different sizes, so that the device can be adjusted for cars with tires of different sizes, increasing the diversity of car adjustment by the device.

[0034] See also Figure 5 The moving component 4 includes a rectangular moving block 401, a second bidirectional threaded rod 402 is connected to the inner cavity of the rectangular moving block 401, rectangular sliding blocks 403 are sleeved on both ends of the second bidirectional threaded rod 402, and one end of the second bidirectional threaded rod 402 is connected to a first friction wheel 404, an end of the first friction wheel 404 away from the second bidirectional threaded rod 402 is connected to a second driving motor 405, and an alarm 704 is installed on the upper end surface of the rectangular moving block 401.

[0035] See also Figure 5 A second circular rotating rod 407 is connected to the inner cavity at the front end of the rectangular moving block 401, and the first gear 408 is connected to both ends of the second circular rotating rod 407, and the third driving motor 406 is connected to the end of the second circular rotating rod 407 away from the second driving motor 405, and a circular hole is opened at one end of the rectangular sliding block 403 facing the speed testing component 5, and the circular rotating block 601 is rotatably connected to the rectangular sliding block 403 through the circular hole.

[0036] See also Figure 6 The speed testing component 5 includes a first speed measuring component 501, both ends of the first speed measuring component 501 are connected to a third bidirectional threaded rod 502, one end of the third bidirectional threaded rod 502 is connected to a first rotating belt 503, an end of the first rotating belt 503 away from the third bidirectional threaded rod 502 is sleeved with a second friction wheel 504, and an end of the third bidirectional threaded rod 502 away from the first rotating belt 503 is connected to a second speed measuring component 505.

[0037] See also Figure 7 The first speed measuring assembly 501 includes a first speed measuring roller 506 , both ends of the first speed measuring roller 506 are rotatably connected with T-shaped sliding blocks 507 , and one end of the T-shaped sliding block 507 away from the first speed measuring roller 506 is connected with a second speed measuring roller 508 .

[0038] The third bidirectional threaded rod 502 is slidably connected with the T-shaped sliding block 507, the first friction wheel 404 and the second friction wheel 504 are in the same plane, the first gear 408 meshes with the rack 3 by passing through the lower end surface of the rectangular moving block 401, the components of the second speed measuring component 505 are the same as the components of the first speed measuring component 501, and when the first gear 408 moves to the end of the rack 3, the first friction wheel 404 and the second friction wheel 504 will be meshed, and the alarm component 7 installed at one end of the operating table 1 is connected to the adjustment component 6 close to the second friction wheel 504, and the alarm component 7 installed at the other end of the operating table 1 is connected to the adjustment component 6 away from the second friction wheel 504.

[0039] Specifically, the start of the third drive motor 406 will drive the first gear 408 to move along the rack 3 until the first friction wheel 404 is meshed with the second friction wheel 504. At this time, the second drive motor 405 is started to move the rectangular sliding block 403 along the second bidirectional threaded rod 402, and the first speed measuring component 501 and the second speed measuring component 505 are moved along the third bidirectional threaded rod 502 until the distance between the center of the circular rotating block 601 at one end of the second bidirectional threaded rod 402 and the center of the circular rotating block 601 at the other end of the second bidirectional threaded rod 402 is equal to the wheelbase of the vehicle. At this time, the distance between the midpoint of the T-shaped sliding block 507 in the first speed measuring component 501 and the midpoint of the T-shaped sliding block 507 in the second speed measuring component 505 is equal to the wheelbase of the vehicle. In this way, the speed testing component 5 and the moving component 4 can generate a linkage efficiency, and the speed testing component 5 and the moving component 4 can be adjusted according to the wheelbase of the car, thereby increasing the diversity of car debugging and improving the work efficiency of car debugging.

[0040] Working principle: First, according to the size of the vehicle tire being debugged, the first driving motor 602 is started and the first bidirectional threaded rod 603 is driven to rotate. As the first bidirectional threaded rod 603 rotates, the first circular sliding block 604 and the second circular sliding block 609 are driven to move toward the middle of the first bidirectional threaded rod 603, thereby driving the first rectangular connecting rod 605 and the second rectangular connecting rod 608 to extend in all directions, and then the circular radius formed by the plurality of rectangular connecting plates 606 is equal to the distance from the tire center to the wheel hub fixing screws, and then the third driving motor 406 is started and the second circular rotating rod 407 is driven to rotate , thereby driving the first gear 408 to move along the rack 3 to the middle part of the operating platform 1, and then driving the moving assembly 4 to move to the middle part of the operating platform 1. When the first gear 408 moves to the end of the operating platform 1, the first friction wheel 404 is meshed with the second friction wheel 504. At this time, the second driving motor 405 is started according to the wheelbase of the debugging vehicle and drives the second bidirectional threaded rod 402 and the first friction wheel 404 to rotate synchronously, so that the rectangular sliding blocks 403 sleeved at both ends of the second bidirectional threaded rod 402 move along the second bidirectional threaded rod 402 to the middle part, and then the adjusting assembly 6 moves to the middle part;

[0041] When the first friction wheel 404 rotates, it will drive the second friction wheel 504 to rotate, thereby driving the first rotating belt 503 to rotate, and then driving the third bidirectional threaded rod 502 to rotate. As the third bidirectional threaded rod 502 rotates, the first speed measuring component 501 and the second speed measuring component 505 will be driven to move toward the middle part of the third bidirectional threaded rod 502 until the distance between the center of the circular rotating block 601 at one end of the second bidirectional threaded rod 402 and the center of the circular rotating block 601 at the other end of the second bidirectional threaded rod 402 is equal to the wheelbase of the vehicle. At this time, the second driving motor 405 is stopped, and the distance between the midpoint of the T-shaped sliding block 507 in the first speed measuring component 501 and the midpoint of the T-shaped sliding block 507 in the second speed measuring component 505 is equal to the wheelbase of the vehicle, and then the moving component 4 is restored to its original position;

[0042] When the distance between the center of the circular rotating block 601 at one end of the second bidirectional threaded rod 402 and the center of the circular rotating block 601 at the other end of the second bidirectional threaded rod 402 is equal to the wheelbase of the vehicle, the debugging vehicle is placed in the speed test assembly 5, the front wheel of the vehicle is located in the middle of the two speed measuring rollers in the first speed measuring assembly 501, and the rear wheel of the vehicle is located in the middle of the two speed measuring rollers in the second speed measuring assembly 505, and then the third driving motor 406 is started again to connect the connecting port 607 with the wheel hub fixing screw, and then the end of the speed sensing line 705 is connected to the main line of the engine, so as to sense the speed of the engine, and start the vehicle, so that the tire rotates, and then drives the circular rotating block 601 to rotate. As the circular rotating block 601 rotates, the rectangular trigger block 702 will be driven to rotate. When the engine rotates to 3000 revolutions per second, it means that the vehicle speed reaches 100 miles, so the sensor 703 is started and the sensor 703 starts to work;

[0043] And every time the rectangular trigger block 702 rotates one circle, it will contact the trigger groove opened on the upper end of the sensor 703 once. When the vehicle speed reaches 100 miles per hour and the brakes are applied, the sensor 703 will detect the number of circles the vehicle tires rotate from a speed of 100 miles per hour to a stop. If the number of circles sensed by the sensor 703 exceeds the set number of circles, it means that the braking distance of the vehicle exceeds the standard distance, and the alarm 704 will sound an alarm, thus ending all operations.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A detection and alarm device for vehicle debugging, comprising an operating console (1), characterized in that: The upper end of the operating table (1) is provided with slide grooves (2), the inner ends of each slide groove (2) are connected to racks (3), and the inner cavity of each slide groove (2) is connected to a moving component (4), the upper ends of each moving component (4) are connected to adjustment components (6), one end of the adjustment component (6) is connected to an alarm component (7), and the middle part of the operating table (1) is connected to a speed test component (5); The adjusting component (6) comprises a circular rotating block (601), a second circular sliding block (609) and a plurality of second rectangular connecting rods (608); the end of the circular rotating block (601) close to the speed testing component (5) is connected to a first driving motor (602); the output end of the first driving motor (602) is sleeved with a first bidirectional threaded rod (603); the end of the first bidirectional threaded rod (603) close to the first driving motor (602) is sleeved with a first circular sliding block (604); the end of the first circular sliding block (604) away from the circular rotating block (601) is connected to a plurality of first rectangular connecting rods (605); the end of each of the first rectangular connecting rods (605) away from the first circular sliding block (604) is connected to a rectangular connecting plate (606); the end of each of the rectangular connecting plates (606) away from the circular rotating block (601) is connected to a connecting port (607); The alarm component (7) comprises a first circular connecting rod (701), one end of the first circular connecting rod (701) away from the adjustment component (6) is connected to a rectangular trigger block (702), the lower end of the rectangular trigger block (702) is connected to a sensor (703), one side of the sensor (703) is connected to an alarm (704), and the other side of the sensor (703) is connected to a rotation speed sensing line (705).

2. A detection and alarm device for vehicle debugging according to claim 1, characterized in that: Each of the first rectangular connecting rods (605) is connected to a second rectangular connecting rod (608) at one end close to the rectangular connecting plate (606), and is connected to a second circular sliding block (609) at one end of the second rectangular connecting rod (608) away from the rectangular connecting plate (606). The circular rotating block (601) is connected to a guide rod (610) at one end close to the first bidirectional threaded rod (603).

3. A detection and alarm device for vehicle debugging according to claim 2, characterized in that: The first circular connecting rod (701) is connected to the circular rotating block (601), and the guide rod (610) passes through the first circular sliding block (604) and the second circular sliding block (609).

4. A detection and alarm device for vehicle debugging according to claim 1, characterized in that: The moving assembly (4) comprises a rectangular moving block (401), a second bidirectional threaded rod (402) is connected to the inner cavity of the rectangular moving block (401), rectangular sliding blocks (403) are sleeved at both ends of the second bidirectional threaded rod (402), one end of the second bidirectional threaded rod (402) is connected to a first friction wheel (404), and the end of the first friction wheel (404) away from the second bidirectional threaded rod (402) is connected to a second driving motor (405).

5. A detection and alarm device for vehicle debugging according to claim 4, characterized in that: A second circular rotating rod (407) is connected to the inner cavity at the front end of the rectangular moving block (401), both ends of the second circular rotating rod (407) are connected to a first gear (408), and one end of the second circular rotating rod (407) away from the second driving motor (405) is connected to a third driving motor (406).

6. A detection and alarm device for vehicle debugging according to claim 5, characterized in that: The speed testing assembly (5) comprises a first speed measuring assembly (501), wherein two ends of the first speed measuring assembly (501) are connected to a third bidirectional threaded rod (502), one end of the third bidirectional threaded rod (502) is connected to a first rotating belt (503), an end of the first rotating belt (503) away from the third bidirectional threaded rod (502) is sleeved with a second friction wheel (504), and an end of the third bidirectional threaded rod (502) away from the first rotating belt (503) is connected to a second speed measuring assembly (505).

7. A vehicle debugging detection alarm device according to claim 6, characterized in that: The first speed measuring component (501) comprises a first speed measuring roller (506), both ends of the first speed measuring roller (506) are rotatably connected to T-shaped sliding blocks (507), and one end of the T-shaped sliding block (507) away from the first speed measuring roller (506) is connected to a second speed measuring roller (508).

8. A detection and alarm device for vehicle debugging according to claim 7, characterized in that: The third bidirectional threaded rod (502) is slidably connected to the T-shaped sliding block (507), the first friction wheel (404) and the second friction wheel (504) are located in the same plane, and the first gear (408) is meshed with the rack (3) by passing through the lower end surface of the rectangular moving block (401).

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