Large vehicle outline automatic detection mechanism

Abstract

A large vehicle outline automatic detection mechanism belongs to the technical field of vehicle detection equipment and comprises a portal frame, a conveying belt, a detection assembly and a protection assembly, the portal frame comprises a cross beam and stand columns symmetrically arranged at the two ends of the cross beam, the conveying belt is arranged below the portal frame, a rotating shaft is arranged on the conveying belt, and the detection assembly is arranged on the rotating shaft. The measuring assembly is arranged on the cross beam and faces the ground; the protective assembly comprises a protective cover, a telescopic part, a limiting rack, a gear and a pull rope, the protective cover is slidably connected with the cross beam, the protective cover is matched with the measuring assembly and can slide in the horizontal direction, the telescopic part is arranged between the protective cover and the measuring assembly, and the limiting rack is slidably connected with the stand column and can slide in the vertical direction; the gear is in transmission connection with the rotating shaft through a shaft, the gear is meshed with the limiting rack to drive the limiting rack to move up and down, and the protective cover is made to be away from or cover the measuring assembly under the cooperation of the pull rope and the telescopic piece, so that the measuring assembly is protected.

Description

Technical Field

[0001] The present application belongs to the technical field of vehicle detection equipment, and in particular to an automatic detection mechanism for the outer contour of a large vehicle. Background Art

[0002] Motor vehicles such as cars have become one of the indispensable means of transportation in today's society. In order to ensure the safety of vehicles, vehicles must undergo annual inspections every year to ensure vehicle driving safety. Among them, vehicle external dimensions have become one of the important contents of vehicle operation safety inspections. Existing vehicle external dimensions inspection equipment usually installs the inspection equipment in the inspection area, then drives the vehicle to be inspected under the inspection equipment, and inspects the vehicle's external dimensions through surveying and mapping instruments such as laser radar. Then, by comparing and referring to the inspection data, the vehicle's external dimensions are evaluated to see if they are qualified.

[0003] For example, the invention patent with publication number "CN202011323178.1" discloses a vehicle outer contour detection device. When performing the detection work, the arc cover and the arc cover 2 rotate to expose the measuring grating. After the detection work is completed, the arc cover and the arc cover 2 rotate to cover the measuring grating, thereby protecting the measuring grating and reducing the problem that the measuring grating is easily affected by long-term exposure to the measuring grating. The accuracy and service life of the measurement are easily affected; when the wheel of the vehicle contacts the movable plate, the movable plate moves downward, so that the reset spring is in a compressed state; when the wheel of the vehicle is separated from the movable plate, the movable plate can be pushed to return to its initial position under the action of the rebound force of the reset spring, thereby ensuring the continuous reuse of the drive assembly and the drive assembly 2; when the short rod 1 rotates, under the transmission action of the transmission structure, the short rod 2 can rotate accordingly, so that the mounting plate 3 and the arc cover 3 also rotate accordingly, thereby covering the measuring grating in the track, thereby protecting the measuring grating in the track.

[0004] Although the above scheme makes good use of the arc cover 1, the arc cover 2 and the arc cover 3 to protect the measuring grating, the opening and closing process of the arc cover 1, the arc cover 2 and the arc cover 3 is complicated. Summary of the invention

[0005] In view of this, it is necessary to provide a method for solving the complex opening and closing problem of the protective device of the detection device.

[0006] The solution of this application to solve the technical problem is:

[0007] A large vehicle outline automatic detection mechanism comprises a gantry and a conveyor belt, wherein the gantry comprises a crossbeam and columns symmetrically arranged at both ends of the crossbeam, the conveyor belt is arranged below the gantry, and a rotating shaft is arranged on the conveyor belt, and further comprises:

[0008] A measuring component, the measuring component is arranged on the crossbeam and faces the ground;

[0009] A protective assembly, the protective assembly comprising a protective cover, a telescopic part, a limit rack, a gear and a pull rope, the protective cover is slidably connected to the crossbeam, the protective cover is matched with the measuring assembly and can slide in the horizontal direction, the telescopic part is arranged between the protective cover and the measuring assembly, the limit rack is slidably connected to the column and can slide in the vertical direction, the gear is connected to the rotating shaft through an axis transmission, the gear is engaged with the limit rack, and drives the limit rack to move up and down, and the two ends of the pull rope are respectively connected to the protective cover and the limit rack.

[0010] Preferably, a first sliding groove is provided on the crossbeam, and a locking block is provided on the protective cover, and the locking block is locked with the first sliding groove.

[0011] Preferably, it also includes a fixed cover, which covers the limiting rack, and the limiting rack is penetrated by a connecting rod arranged in the fixed cover, and the first fixing plate and the second fixing plate are respectively provided at both ends of the connecting rod, and the first fixing plate and the second fixing plate are both connected to the fixed cover; the upper end surface of the fixed cover is provided with a first opening for the pull rope to pass through, and the side of the fixed cover away from the column is provided with a second opening, and the gear extends into the second opening to engage with the limiting rack.

[0012] Preferably, the measuring component includes a camera and a movable shaft, one end of the movable shaft is clamped with the crossbeam, and the other end is rotatably connected to the camera, and the camera is electrically connected to a computer.

[0013] Preferably, the protective cover is an arc-shaped protective cover, the arc-shaped protective cover matches the shape of the camera, and a sponge block is detachably provided inside the arc-shaped protective cover.

[0014] Preferably, the telescopic member is a first spring.

[0015] Preferably, the limiting rack includes a limiting member and a rack, the limiting members are symmetrically arranged at both ends of the rack, and the connecting rod passes through the limiting member and the rack.

[0016] Preferably, the limiting member includes a limiting block and a second spring, the limiting block is arranged at one end of the rack, and the second spring is arranged between the limiting block and the rack.

[0017] Preferably, the gear includes a bevel gear, a transmission gear and a driving gear, the bevel gear is coaxially arranged with the rotating shaft, the transmission gear is meshingly connected with the bevel gear, the driving gear is coaxially arranged with the transmission gear, and the driving gear is meshingly engaged with the rack through the second opening.

[0018] Preferably, it further comprises a guide wheel, wherein the guide wheel is arranged on the gantry, and the pull rope is slidably connected to the surface of the guide wheel.

[0019] The present application adopts a technical solution of a large vehicle profile automatic detection mechanism to achieve the following beneficial effects:

[0020] Through the coordination among the protective cover, telescopic part, limit rack, gear and pull rope, the method of protecting the measuring component is simplified, and the measuring component can be protected by only pulling the pull rope.

[0021] When the end of the limiting rack contacts the gear, the gear starts to idle, avoiding continuous pulling of the pull rope;

[0022] When the two ends of the limit rack are closed, the measuring component can be wiped during the process of the protective cover being removed from or covered on the measuring component;

[0023] Through the rotation of the rotating shaft and the transmission cooperation between the gear, the limit rack and the pull rope, no external energy is required, thus reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of a large vehicle profile automatic detection mechanism in this application;

[0025] Figure 2 A perspective view of a fixed cover in this application;

[0026] Figure 3 It is an enlarged view of A in this application;

[0027] Figure 4 is a schematic diagram of the first chute in this application;

[0028] Figure 5 Schematic diagram of the gears in this application.

[0029] In the figure: gantry 10, cross beam 101, first slide 1011, column 102, conveyor belt 20, rotating shaft 201, measuring component 30, camera 301, movable shaft 302, protection component 40, protection cover 401, card block 4011, sponge block 4012, telescopic member 402, limit rack 403, limit member 4031, rack 4032, limit block 4033, second spring 4034, gear 404, bevel gear 4041, transmission gear 4042, drive gear 4043, pull rope 405, fixed cover 50, first opening 501, second opening 502, first fixed plate 503, second fixed plate 504, connecting rod 505, guide wheel 60. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Please see Figures 1 to 5 , an automatic detection mechanism for the outer contour of a large vehicle, comprising a gantry 10 and a conveyor belt 20, wherein the gantry 10 comprises a crossbeam 101 and columns 102 symmetrically arranged at both ends of the crossbeam 101, the conveyor belt 20 is arranged below the gantry 10, and a rotating shaft 201 is arranged on the conveyor belt 20, and further comprising: a measuring component 30 and a protective component 40, wherein the measuring component 30 is arranged on the crossbeam 101 and is arranged toward the ground; the protective component 40 comprises a protective cover 401, a telescopic member 402, a limit rack 403, a gear 404 and a pull rope 405, wherein the protective cover 401 and the conveyor belt 20 are arranged on the crossbeam 101 and are arranged toward the ground; the protective component 40 comprises a protective cover 401, a telescopic member 402, a limit rack 403, a gear 404 and a pull rope 405, wherein the protective cover 401 and the conveyor belt 20 are arranged on the crossbeam 101 and are arranged on ... The crossbeam 101 is slidably connected, the protective cover 401 is matched with the measuring component 30 and can slide in the horizontal direction, the telescopic member 402 is arranged between the protective cover 401 and the measuring component 30, the limit rack 403 is slidably connected to the column 102 and can slide in the vertical direction, the gear 404 is connected to the rotating shaft 201 through an axis transmission, the gear 404 is engaged with the limit rack 403, driving the limit rack 403 to move up and down, and the two ends of the pull rope 405 are respectively connected to the protective cover 401 and the limit rack 403.

[0032] During the forward rotation of the conveyor belt 20, the rotating shaft 201 is driven to rotate, and the rotating shaft 201 drives the gear 404 to rotate, and the gear 404 drives the limit rack 403 to move downward, and then the pull rope 405 (the length of the pull rope 405 is fixed) connected to the limit rack 403 also starts to move downward, and then the pull rope 405 drives the protective cover 401 to move horizontally and move away from the measuring component 30, and the measuring component 30 starts to measure the outer profile of the large vehicle. During this process, the telescopic member 402 is in a stretched state; when the measurement is completed, the conveyor belt 20 rotates in the reverse direction, thereby driving the rotating shaft 201 to rotate in the reverse direction, and the rotating shaft 201 drives the gear 404 to rotate, and the gear 404 drives the limit rack 403 to move downward. The rack 403 moves upward, and the pull rope 405 (the length of the pull rope 405 is fixed) connected to the limit rack 403 also starts to move upward. At this time, the pull rope 405 is in a relaxed state. Then, during the contraction of the telescopic member 402, the protective cover 401 and the relaxed horizontal end of the pull rope 405 are pulled to make the protective cover 401 cover the measuring component 30. When the protective cover 401 covers the measuring component 30, the pull rope 405 is in a taut state again. During the contraction of the telescopic member 402, the protective cover 401 is also pulled toward the measuring component 30 to make the protective cover 401 better cover the measuring component 30. It should be clear that the gear 404 only rotates and does not move.

[0033] During this process, it should be made clear that the positional relationship between the protective cover 401 and the measuring component 30 is controlled by the pull rope 405. When the protective cover 401 is removed from the measuring component 30, there is no need to pull the pull rope 405 downward. At this time, in order to achieve this purpose, when the gear 404 is located at the lower end of the limit rack 403, the gear 404 starts to idle at the end of the limit rack 403; at the same time, the gear 404 is fixed in position by an axis connected to the rotating shaft 201 to ensure that the gear 404 will not be displaced during use.

[0034] The present application adopts a technical solution of a large vehicle profile automatic detection mechanism to achieve the following beneficial effects:

[0035] By utilizing the rotation of the conveyor belt 20 and the coordination among the protective cover 401, the telescopic member 402, the limit rack 403, the gear 404 and the pull rope 405, the method of protecting the measuring component 30 is simplified. The measuring component 30 can be protected by simply pulling the pull rope 405. The operation process is simple and convenient.

[0036] At the same time, the power of the automatic detection mechanism for the outer profile of a large vehicle comes from the rotation of the conveyor belt 20, and no external energy is required, thereby reducing energy consumption losses.

[0037] Specifically, a first sliding groove 1011 is provided on the crossbeam 101 , and a clamping block 4011 is provided on the protective cover 401 , and the clamping block 4011 is clamped with the first sliding groove 1011 .

[0038] When the protective cover 401 needs to be removed from the measuring component 30, it is necessary to pull the protective cover 401 to move horizontally on the beam 101; or when the protective cover 401 needs to be covered on the measuring component 30, it is also necessary to pull the protective cover 401 to move horizontally on the beam 101. At this time, in order to facilitate the movement of the protective cover 401, a first slide groove 1011 is provided on the beam 101, and a locking block 4011 is provided on the protective cover 401. The locking block 4011 can be engaged with the first locking groove, and the locking block 4011 can move in the first slide groove 1011, thereby driving the protective cover 401 to move and can firmly install the protective cover 401 on the beam 101, and the sliding direction of the protective cover 401 is restricted so that the protective cover 401 can only move along the first slide groove 1011.

[0039] In a preferred embodiment, it also includes a fixed cover 50, which covers the limiting rack 403, and the limiting rack 403 is penetrated by a connecting rod 505 arranged in the fixed cover 50, and the two ends of the connecting rod 505 are respectively provided with a first fixing plate 503 and a second fixing plate 504, and the first fixing plate 503 and the second fixing plate 504 are both connected to the fixed cover 50; the upper end surface of the fixed cover 50 is provided with a first opening 501 for the pull rope 405 to pass through, and the side of the fixed cover 50 away from the column 102 is provided with a second opening 502, and the gear 404 extends into the second opening 502 and meshes with the limiting rack 403.

[0040] The protective cover 401 wraps the first fixed plate 503, the second fixed plate 504, the connecting rod 505, and the limiting rack 403 to prevent dust and other impurities on site from entering the gap formed by the first fixed plate 503, the second fixed plate 504, the connecting rod 505, and the limiting rack 403 during use, thereby preventing jamming and improving the aesthetics of the protective component 40.

[0041] The upper end of the limit rack 403 is provided with a pull rod for fixing the pull rope 405, and the pull rod is provided with a fixing hole. The pull rope 405 passes through the first opening 501 and is connected to the fixing hole, thereby connecting the pull rope 405 and the limit rack 403. The connecting rod 505 passes through the limit rack 403 along the length direction. When the limit rack 403 moves downward, the pull rope 405 is pulled downward until the limit rack 403 contacts the second fixing plate 504. At this time, The limit rack 403 stops moving downward; on the contrary, when the limit rack 403 moves upward, the pull rope 405 relaxes, and the telescopic member 402 drives the protective cover 401 to move toward the camera 301 until the limit rack 403 contacts the first fixed plate 503. At this time, the limit rack 403 stops moving upward, and the movement of the pull rope 405 realizes the movement of the protective cover 401; and the gear 404 engages with the limit rack 403 through the second opening 502.

[0042] The first fixed plate 503 and the second fixed plate 504 limit the up and down movement range of the limit rack 403, limit the upward or downward movement height of the first fixed plate 503 and the second fixed plate 504, and avoid the limit rack 403 from being unable to engage with the gear 404 due to excessive movement range; at the same time, it solves the problem of the limit rack 403 being separated from the connecting rod 505.

[0043] In a preferred embodiment, the measuring component 30 includes a camera 301 and a movable shaft 302, one end of the movable shaft 302 is engaged with the beam 101, and the other end is rotatably connected to the camera 301, and the camera 301 is electrically connected to a computer.

[0044] The camera 301 takes a picture of the outline information of the large vehicle, and then transmits it to the computer for corresponding calculation. The measurement method can make use of the method of detecting information at the existing vehicle monitoring station. In order to take pictures of the outline information of the large vehicle in all directions, the movable shaft 302 is set. One end of the movable shaft 302 is connected to the camera 301, and the other end is connected to a driving device, such as a motor, etc., to drive the camera 301 to rotate in all directions to collect the outline information of the large vehicle in all directions.

[0045] In a preferred embodiment, the protective cover 401 is an arc-shaped protective cover 401 , the arc-shaped protective cover 401 matches the shape of the camera 301 , and a sponge block 4012 is detachably provided in the arc-shaped protective cover 401 .

[0046] The protective cover 401 is an arc-shaped protective cover 401, which can better match the camera 301. When setting, the protective cover 401 at one end connected to the pull rope 405 is set thicker, and the protective cover 401 at the other end connected away from the pull rope 405 is set thinner, so that the protective cover 401 can be easily covered on the measuring component 30, or removed from the measuring component 30. In order to facilitate cleaning of the camera 301, a sponge block 4012 is detachably provided in the arc-shaped protective cover 401. The sponge block 4012 not only wipes the camera 301, but also protects the camera 301 to prevent the arc-shaped protective cover 401 from scratching the surface of the camera 301.

[0047] Specifically, the telescopic member 402 is a first spring.

[0048] A first spring is arranged between the protective cover 401 and the camera 301. When the protective cover 401 is removed from the camera 301, the spring is pulled open. According to the characteristics of the spring, the spring will exert an upward pulling force on the pull rope 405, so that the gear 404 can better idle at the end of the limit rack 403; when the protective cover 401 needs to cover the camera 301, the pull rope 405 moves up, and the spring contracts, so as to better pull the pull rope 405 upward and make the protective cover 401 cover the camera 301 better.

[0049] In a preferred embodiment, the limiting rack 403 includes a limiting member 4031 and a rack 4032 , the limiting member 4031 is symmetrically arranged at both ends of the rack 4032 , and the connecting rod 505 passes through the limiting member 4031 and the rack 4032 .

[0050] The rack 4032 is meshed with the gear 404. When the gear 404 contacts the end of the rack 4032, the gear 404 contacts the limiter 4031. Under the action of the limiter 4031, the gear 404 starts to idle under the action of the limiter 4031, preventing the rack 4032 from continuously pulling the rope.

[0051] Specifically, the limiting member 4031 includes a limiting block 4033 and a second spring 4034 . The limiting block 4033 is disposed at one end of the rack 4032 , and the second spring 4034 is disposed between the limiting block 4033 and the rack 4032 .

[0052] The gear 404 keeps idling under the action of the limiting member 4031 . It should be noted that: there is only one limiting block 4033 at the end of the rack 4032 .

[0053] The gear 404 will apply a forward or backward force to the limit block 4033. At this time, when the second spring 4034 is compressed, the limit block 4033 will move toward the rack 4032, that is, the distance between the limit block 4033 and the rack 4032 is shortened, and then according to the characteristics of the second spring 4034, it is reset after being compressed. The reset time is: the starting position of a tooth is preset as A. When the gear 404 starts to rotate, one tooth in the gear 404 starts to move from position A, and the time for the other tooth to move to position A. During this time, the limit block 4033 is pushed by the second spring 4034 to return to its previous position. At this time, the gear 404 is still meshed with the limit block 4033 instead of the rack 4032. At this time, the gear 404 and the moving limit block 4033 are meshed with each other, and the purpose of idling is achieved.

[0054] The idling of the gear 404 prevents the pull rope 405 from being continuously stressed.

[0055] Furthermore, the gear 404 includes a bevel gear 4041, a transmission gear 4042 and a driving gear 4043, the bevel gear 4041 is coaxially arranged with the rotating shaft 201, the transmission gear 4042 is meshingly connected with the bevel gear 4041, the driving gear 4043 is coaxially arranged with the transmission gear 4042, and the driving gear 4043 is meshed with the rack 4032 through the second opening 502.

[0056] The bevel gear 4041 is coaxially arranged with the rotating shaft 201 to realize force transmission, and then drives the transmission gear 4042 to rotate, and finally drives the driving gear 4043 to rotate, so as to realize the upward or downward movement of the rack 4032. In this process, no additional power source is required, thus saving energy consumption.

[0057] In a preferred embodiment, it further includes a guide wheel 60 , which is disposed on the gantry 10 , and the pull rope 405 is slidably connected to the surface of the guide wheel 60 .

[0058] When the pull rope 405 pulls the rack 4032, a triangle is avoided to be formed between the pull rope 405 and the corner of the gantry 10. The guide wheel 60 is set at the corner of the gantry 10, and the guide wheel 60 is rotatable. At this time, the pull rope 405 passes through the space between the guide wheel 60 and the corner of the gantry 10 to connect the rack 4032 and the protective cover 401, so that the pull rope 405 is parallel to the crossbeam 101 and the column 102, so as to avoid hindering the vehicle's progress due to improper setting of the pull rope 405.

[0059] What is disclosed above is only the preferred embodiment of the present application, and it certainly cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A large vehicle profile automatic detection mechanism, comprising a gantry and a conveyor belt, wherein the gantry comprises a crossbeam and columns symmetrically arranged at both ends of the crossbeam, the conveyor belt is arranged below the gantry, and a rotating shaft is arranged on the conveyor belt, characterized in that: Also includes: A measuring component, the measuring component is arranged on the crossbeam and faces the ground; A protective assembly, the protective assembly comprising a protective cover, a telescopic part, a limit rack, a gear and a pull rope, the protective cover is slidably connected to the crossbeam, the protective cover is matched with the measuring assembly and can slide in the horizontal direction, the telescopic part is arranged between the protective cover and the measuring assembly, the limit rack is slidably connected to the column and can slide in the vertical direction, the gear is connected to the rotating shaft through an axis transmission, the gear is engaged with the limit rack, and drives the limit rack to move up and down, and the two ends of the pull rope are respectively connected to the protective cover and the limit rack.

2. A large vehicle outline automatic detection mechanism as claimed in claim 1, characterized in that: The crossbeam is provided with a first slide groove, and the protective cover is provided with a clamping block, and the clamping block is clamped with the first slide groove.

3. The automatic detection mechanism for the outer contour of a large vehicle according to claim 1, characterized in that: It also includes a fixed cover, which covers the limiting rack, and the limiting rack is penetrated by a connecting rod arranged in the fixed cover, and the first fixing plate and the second fixing plate are respectively provided at both ends of the connecting rod, and the first fixing plate and the second fixing plate are both connected to the fixed cover; the upper end surface of the fixed cover is provided with a first opening for the pull rope to pass through, and the side of the fixed cover away from the column is provided with a second opening, and the gear extends into the second opening to engage with the limiting rack.

4. The automatic detection mechanism for the outer contour of a large vehicle according to claim 1, characterized in that: The measuring component comprises a camera and a movable shaft, one end of the movable shaft is clamped with the crossbeam, and the other end is rotatably connected with the camera, and the camera is electrically connected to a computer.

5. A large vehicle outline automatic detection mechanism as claimed in claim 4, characterized in that: The protective cover is an arc-shaped protective cover, which matches the shape of the camera, and a sponge block is detachably arranged in the arc-shaped protective cover.

6. The automatic detection mechanism for the outline of a large vehicle according to claim 1, characterized in that: The telescopic member is a first spring.

7. The automatic detection mechanism for the outer contour of a large vehicle as claimed in claim 3, characterized in that: The limiting rack includes a limiting member and a rack, the limiting member is symmetrically arranged at two ends of the rack, and the connecting rod passes through the limiting member and the rack.

8. The automatic detection mechanism for the outer contour of a large vehicle according to claim 7, characterized in that: The limiting member includes a limiting block and a second spring. The limiting block is arranged at one end of the rack, and the second spring is arranged between the limiting block and the rack.

9. The automatic detection mechanism for the outer contour of a large vehicle according to claim 3, characterized in that: The gear includes a bevel gear, a transmission gear and a driving gear. The bevel gear is coaxially arranged with the rotating shaft. The transmission gear is meshed with the bevel gear. The driving gear is coaxially arranged with the transmission gear, and the driving gear is meshed with the rack through the second opening.

10. The automatic detection mechanism for the outer contour of a large vehicle according to claim 1, characterized in that: It also includes a guide wheel, which is arranged on the gantry, and the pull rope is slidably connected to the surface of the guide wheel.

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