CN214622384U

CN214622384U - Bridge bottom surface crack detection device

Info

Publication number: CN214622384U
Application number: CN202120651426.9U
Authority: CN
Inventors: 戚林; 简懿; 代由乙; 杨益名
Original assignee: Chongqing Zhongjian Engineering Quality Inspection Co ltd
Current assignee: Chongqing Zhongjian Engineering Quality Inspection Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-11-05
Anticipated expiration: 2031-03-31

Abstract

The utility model provides a bridge bottom surface crack detection device, including the camera that is used for gathering the image, still include dustproof mechanism, dustproof mechanism establishes the dust cover and the dust removal subassembly of the transparent material outside the camera including the cover, and the dust cover can be dismantled with the mounting panel and be connected, and the dust cover is equipped with and just to the dust guard of just level setting with the camera lens, and the dust removal subassembly includes wiper blade and drive wiper blade reciprocating motion's driving piece, and wiper blade and dust guard contact side are equipped with the wiping cloth layer. The utility model discloses the outside cover at the camera is equipped with the dust cover, and this dust cover is transparent material (like glass etc.), does not influence the camera to the fissured detection achievement in bridge bottom, can also avoid the dust to drop to lens groove, and the dust removal subassembly of deuterogamying is to the wiping action of dust cover, can effectively avoid the dust to collect on the dust cover and influence the collection work of camera to the image, ensures that the camera is clear when gathering bridge bottom image for the degree of accuracy of detection work is higher.

Description

Bridge bottom surface crack detection device

Technical Field

The utility model relates to an engineering quality detects technical field, in particular to bridge bottom surface crack detection device.

Background

More than 90% of the concrete bridge damages are caused by cracks. Engineering practice and theoretical analysis show that almost all concrete members work with cracks, only some cracks are very thin and invisible to naked eyes (< 0.05mm), and generally have no great harm to normal use of the structure and can allow the cracks to exist; however, some cracks continuously generate and expand new cracks under the action of use load or external physical and chemical factors to form through seams and deep seams, the structural integrity of the cracks with the thickness of more than 0.20-0.30 mm can be directly damaged, concrete carbonization, protective layer peeling and steel bar corrosion are caused, mechanical discontinuities are formed in the bridge, the bearing capacity of the bridge is greatly reduced, and even collapse accidents occur in severe cases, and the normal use of the bridge structure is damaged.

Therefore, crack detection of the bridge is of great importance, and detection methods for cracks on the bottom surface of the bridge in the prior art comprise manual visual detection, detection by a handheld crack detector, detection by an automatic crack detection device and the like.

The automatic crack detection device is widely used due to simple operation and accurate detection, and mainly comprises a base 107, a plurality of travelling wheels fixed on the base 107 and a detection mechanism arranged on the base, as shown in fig. 1; the walking wheels are divided into a driving wheel 108 with a rotating motor 109 and a driven wheel 112, and the driven wheel 112 is rotatably connected with a mounting seat 111 arranged at the bottom of the base 107; the detection mechanism comprises a lifting device fixed on the base and a camera shooting acquisition device arranged on the lifting device, the lifting device can be a lifting cylinder 105 (the cylinder is a servo cylinder) in the prior art, a piston rod of the lifting cylinder 105 is connected with a connecting plate 103, the camera shooting acquisition device is fixed on the connecting plate 103, the camera shooting acquisition device can be an industrial camera 104, the industrial camera 104 is connected with a controller with a display, and the controller is a single chip microcomputer or a PLC control unit.

When the automatic crack detection device is used, the detection device is placed on a sliding seat 110 which transversely penetrates through a bridge 101, the sliding seat 110 is supported through a truss of a bridge detection vehicle, a first distance sensor 113 is further arranged on a base 107, a second distance sensor 102 is arranged on a connecting plate 103, and the first distance sensor 113, the second distance sensor 102, a rotating motor 109 and a lifting cylinder 105 are all connected with a controller.

During specific use, place whole detection device in bridge 101 bottom, then ensure through the first distance sensor 113 that sets up on the base 107 that whole device moves on slide 110, avoid device roll-off slide 107, then the signal feedback that detects through the second distance sensor 102 on the connecting plate 103 is to the controller, controller control lift cylinder 105 works, move industry camera 104 to the suitable position apart from bridge 101, again control action wheel 108 and move on slide 110, carry out horizontal (perpendicular bridge length direction) scanning detection to bridge 101 bottom with this.

In the process, the industrial camera lens is directly opposite to the bottom of the bridge, the bridge detection cannot be carried out in some cases, the vehicle shakes through the bridge detection, dust at the bottom of the bridge shakes off the industrial camera lens, the picture collecting effect of the lens is influenced, and therefore the bridge bottom crack detection device capable of ensuring that the camera lens collects pictures and is influenced by insufficient foreign matters (dust) is provided necessarily at present.

SUMMERY OF THE UTILITY MODEL

Not enough to exist among the prior art, the utility model provides a bridge bottom surface crack detection device has solved the camera lens of gathering the image among the prior art and has piled up the dust easily and influence the problem of gathering the effect.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a bridge bottom crack detection device comprises a movable base, a mounting plate arranged above the base and in variable distance with the base, and a camera fixed on the mounting plate and used for collecting images, wherein the camera is provided with a dustproof mechanism used in cooperation, the dustproof mechanism comprises a dustproof cover made of transparent materials and covered outside the camera, and a dust removal component used for wiping the dustproof cover,

the dust cover is detachably connected with the mounting plate and is provided with a dust plate which is opposite to the camera lens and is horizontally arranged,

the dust removal assembly comprises a wiping plate in contact sliding connection with the dustproof plate and a driving piece for driving the wiping plate to move in a reciprocating mode, and a wiping cloth layer is arranged on the contact side of the wiping plate and the dustproof plate.

Compared with the prior art, the utility model discloses following beneficial effect has: because the camera lens of general industry camera or camera all has a sunkenly, easy deposition just is difficult for cleaing away, for avoiding the dust to get into the depressed part of camera lens, the utility model discloses the outside cover at the camera is equipped with the dust cover, and this dust cover is transparent material (like glass etc.), does not influence the camera to the fissured detection achievement in bridge bottom, can also avoid the dust to drop to the camera lens groove, deuterogamies the effect of cleaning of dust removal subassembly to the dust cover, can effectively avoid the dust to collect on the dust cover and influence the collection work of camera to the image, ensures that the camera is clear when gathering bridge bottom image for the degree of accuracy of detection achievement is higher.

Drawings

FIG. 1 is a schematic structural diagram of a bridge bottom crack detection device in the prior art;

FIG. 2 is a schematic view of a part of the bridge crack detection device of the present invention;

FIG. 3 is a fitting installation diagram of the installation plate, the connection plate, the camera, the dustproof mechanism and the angle adjustment mechanism of the present invention;

FIG. 4 is a top view of the mounting plate, the camera and a part of the dustproof mechanism;

FIG. 5 is a schematic view showing the connection rod, the sliding groove and the sliding block of the present invention;

fig. 6 is the utility model discloses erection column, connecting axle and running gear cooperation installation top view.

In the figure: 1. wiping the board; 2. a camera; 3. a first distance sensor; 4. a second distance sensor; 5. a driven wheel; 6. a load bearing seat; 7. rotating the motor; 8. a driving wheel; 9. a base; 10. a servo cylinder; 11. a telescopic rod; 12. a connecting plate; 13. mounting a plate; 14. a dust cover; 141. a dust-proof plate; 15. a wiping cloth layer; 16. a brush; 17. an annular groove; 18. a circular arc-shaped toothed ring; 19. mounting a column; 20. a rotating gear; 21. a connecting shaft; 22. a shaft pin; 23. a connecting rod; 24. a sliding groove; 25. a drive rack; 26. a drive gear; 27. a drive shaft; 28. a mounting seat; 29. a first servo motor; 30. a slider; 31. a second servo motor.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

As shown in fig. 2, the embodiment of the utility model provides a bridge bottom surface crack detection device, including mobilizable base 9, set up in base 9 top and the mounting panel 13 that base 9 displacement set up and fix the camera 2 that is used for gathering the image on mounting panel 13 base 9 bottom is equipped with a plurality of walking wheels, and the rotation motor 7 that one of them walks capable wheel (being called action wheel 8) and connects, it is servo motor to rotate motor 7, rotates motor 7 and base 9 fixed connection, and all the other walking wheels (being called from driving wheel 5) are connected with the bearing seat 6 that base 9 set up through the installation axle that rotates the connection, rotates motor 7 through PWM signal control and rotates, just can control the part that sets up on whole base 9 and the base 9 and remove along required direction. For the convenience carries out the displacement to the mounting panel 13 of base 9 top be equipped with servo cylinder 10 between base 9 and the mounting panel 13, still be equipped with a plurality of telescopic links 11 between base 9 and mounting panel 13 for the stability of ensureing servo cylinder 10 when lift mounting panel 13. The utility model discloses the crack detection device who sets up is when using, but crack detection device among the prior art (the detection device shown in figure 1) is the same, erects a slide that can supply base 9 to remove through the truss of bridge inspection car, will walk the road wheel setting in the slide, slide along the slide (just remove along bridge width direction), then set up second distance sensor 4 on base 9, with whole base 9 roll-off slide when avoiding rotating 7 drive action wheels 8 and removing, first distance sensor 3 is connected with the controller, the controller is the controller of taking the display in the prior art. When the walking wheels move to drive the base 9 to move to a preset position, the controller controls the servo cylinder 10 to ascend, the ascending position is controlled through the first distance sensor 3 connected with the piston end of the servo cylinder 10, the camera 2 reaches the preset position, then the controller controls the walking wheels to move, and the bridge bottom is scanned to detect whether cracks exist.

As shown in fig. 2 and 3, in the above process, the lens of the camera 2 is required to be directly opposite to the bottom of the bridge, the bridge is basically not stopped when the crack is detected, the bridge is shaken when a vehicle passes through the bridge, so that the bridge is slightly dusty and falls off, and the fallen dust is easily collected in the concave position of the lens of the camera 2, which affects the definition of the image collected by the camera 2. For avoiding this problem, the utility model discloses camera 2 is equipped with the dustproof mechanism that the cooperation was used, dustproof mechanism establishes the dust cover 14 of the outer transparent material of camera 2 and is used for cleaning the dust removal subassembly of dust cover 14 including the cover, dust cover 14 can dismantle with mounting panel 13 and be connected, dust cover 14 is equipped with the dust guard 141 just to just the level setting with camera 2 camera lens, the dust removal subassembly includes the driving piece with dust guard 141 contact sliding connection's wiper 1 and the 1 reciprocating motion of drive wiper, wiper 1 is equipped with wiper layer 15 with dust guard 141 contact side.

As shown in fig. 3, the dust cover 14 may be made of transparent plastic or toughened glass, a female thread is disposed at a connection end of the dust cover 14 and the mounting plate 13, an annular groove 17 is disposed on the mounting plate 13, and a male thread connected with the female thread is disposed on a side wall of the annular recess, so that the dust cover 14 and the mounting plate 13 are detachably connected.

As shown in fig. 3, the wiping cloth layer 15 may be made of a common non-woven fabric to prevent fibers from falling off during the wiping process, and meanwhile, in order to prevent the wiping plate 1 from scratching the dust-proof plate 141 by sandwiching a foreign object between the wiping plate and the dust-proof plate 141 during the wiping process of the wiping plate 1, two brushes 16 may be respectively disposed on two sides of the wiping plate 1 along a direction perpendicular to the sliding direction of the wiping plate, the foreign object on the dust-proof plate 141 is first swept away by the brushes 16, and then the wiping cloth layer 15 is used for wiping.

As shown in fig. 2 and 3, the utility model discloses the outside cover at camera 2 is equipped with dust cover 14, this dust cover 14 is transparent material (like glass etc.), do not influence camera 2 to the fissured detection achievement in bridge bottom, can also avoid the dust to drop to lens groove, deuterogamy the effect of cleaning of dust removal subassembly to dust cover 14, can effectively avoid the dust to collect on dust cover 14 and influence camera 2 to the collection work of image, ensure that camera 2 is clear when gathering bridge bottom image, make the degree of accuracy of detection work higher.

As shown in fig. 2, 3 and 4, in order to facilitate the movement and installation of the wiping plate 1, the wiping plate 1 is connected with the mounting plate 13 through at least one connecting rod 23, and the connecting rod 23 is slidably connected with a sliding groove 24 formed in the mounting plate 13. The utility model discloses two connecting rods 23 have been set up to the board 1 of wiping that sets up is bar structure, and two connecting rods 23 are connected with the both sides of wiping 1 length direction of board respectively, wipe 1 setting of its length direction reciprocating sliding of edge perpendicular of board. As shown in fig. 5, a sliding block 30 is provided at the bottom of each connecting rod 23, the sliding block 30 is connected with the sliding groove 24, and the cross section of the sliding groove 24 is a wedge-shaped groove or a dovetail groove, so that the sliding block 30 is ensured to slide in the sliding groove 24 and is not separated.

As shown in fig. 3 and 4, the driving member of the present invention is mainly used for driving the wiping board 1 to move, and the wiping board 1 is connected to the mounting board 13 through the connecting rod 23, at this time, only the connecting rod 23 needs to be driven to reciprocate along the length direction of the perpendicular wiping board 1, so that the wiping board 1 can be driven to reciprocate to wipe the dust-proof board 141, the present invention provides the driving member including at least one set of driving gear 26 and driving rack 25 used in cooperation, the driving gear 26 and the first servo motor 29 fixed on the mounting board 13 are coaxially arranged, the driving rack 25 is arranged along the length direction of the sliding groove 24, and the driving rack 25 is fixed to the connecting rod 23. The utility model discloses two connecting rods 23 have been set up, so the utility model discloses set up drive gear 26 and the drive rack 25 that two sets of cooperations were used, 23 fixed connection of a connecting rod that every drive rack 25 corresponds respectively, two drive gear 26 pass through drive shaft 27 and connect, and the mount pad 28 that sets up on drive shaft 27 and the mounting panel 13 passes through the bearing and rotates and be connected, and first servo motor 29 sets up and the coaxial setting of drive shaft 27. When an operator sees that the picture shot by the camera 2 is unclear through the display, the controller is controlled to control the first servo motor 29 to rotate in a positive and negative alternating manner through the PWM signal to drive the two driving gears 26 to rotate in a reverse alternating manner, and then the driving rack 25 drives the wiping plate 1 to move in a reciprocating manner to wipe the dust-proof plate 141, so that the dust-proof plate 141 opposite to the lens of the camera 2 is clear and free of dust accumulation.

As shown in fig. 3 and 6, since the bottom of the bridge is not necessarily all horizontal, and the lens of the camera 2 is horizontally disposed, when some places of the bottom of the bridge are met, and have a certain slope, the inclination angle of the camera 2 needs to be adjusted properly, for conveniently adjusting the inclination angle of the camera 2, the utility model discloses still be equipped with a connecting plate 12 between the mounting plate 13 and the base 9, the first distance sensor 3 is disposed on the connecting plate 12. The cylinder barrel of the servo cylinder 10 is connected with the base 9, the piston rod of the servo cylinder 10 is connected with the connecting plate 12, the mounting plate 13 is provided with a shaft pin 22 which is connected in a rotating mode, the shaft pin 22 is connected with the two mounting columns 19 arranged on the connecting plate 12 in a rotating mode, and in order to facilitate the mounting plate 13 to rotate along the shaft pin 22, an angle adjusting mechanism is arranged between the connecting plate 12 and the mounting plate 13. The angle adjusting mechanism comprises two arc-shaped toothed rings 18 which are oppositely arranged at the bottom of the mounting plate 13 and two rotating gears 20 which are used in a single matching mode with the two arc-shaped toothed rings 18, the two rotating gears 20 are connected through a connecting shaft 21, the connecting shaft 21 is arranged between the two mounting columns 19 and is rotatably connected with the two mounting columns 19 through bearings, and the connecting shaft 21 is also provided with a second servo motor 31. The second servo motor 31 controls the rotation direction and the rotation speed thereof through the PWM signal, and further drives the rotation gear 20 to rotate, the rotation gear 20 rotates to drive the arc-shaped toothed ring 18 engaged with the rotation gear to rotate, and further drives the mounting plate 13 to rotate along the shaft pin 22, so that the camera 2 fixed on the mounting plate 13 can have a certain inclination angle to adapt to the bottom of the bridge with a certain slope.

The utility model discloses the dust cover 14, the dust guard 141 that set up are transparent material, but, for the mounted position of conveniently understanding this each part, the utility model discloses show dust cover 14, dust guard 141 for non-transparent material when the figure shows.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a bridge bottom surface crack detection device, includes mobilizable base, sets up the mounting panel that sets up in base top and base displacement and fix the camera that is used for gathering the image on the mounting panel, its characterized in that: the camera is provided with a dustproof mechanism which is matched with the camera for use, the dustproof mechanism comprises a dustproof cover which is made of transparent materials and covers the camera and a dust removal component for wiping the dustproof cover,

2. The bridge bottom crack detection device of claim 1, wherein: the wiping plate is connected with the mounting plate through at least one connecting rod, and the connecting rod is in sliding connection with a sliding groove formed in the mounting plate.

3. The bridge bottom crack detection device of claim 2, wherein: the driving piece comprises at least one group of driving gear and driving racks which are matched for use, the driving gear and a first servo motor which is fixed on the mounting plate are coaxially arranged, the driving racks are arranged along the length direction of the sliding groove, and the driving racks are fixed with the connecting rod.

4. The bridge bottom crack detection device of any one of claims 1-3, wherein: the base bottom is equipped with a plurality of walking wheels, and one of them walks the wheel and is connected with the rotation motor, be equipped with servo cylinder between base and the mounting panel.

5. The bridge bottom crack detection device of claim 4, wherein: a connecting plate arranged in parallel with the base is further arranged between the mounting part and the base, wherein a cylinder barrel of the servo cylinder is connected with the base, and a piston rod of the servo cylinder is connected with the connecting plate;

be equipped with two erection columns of vertical setting on the connecting plate, be equipped with the bolt of rotation connection between two erection columns, the bolt rotates with the mounting panel to be connected, just be equipped with drive mounting panel along pivot pivoted angle adjustment mechanism between connecting plate and the mounting panel.

6. The bridge bottom crack detection device of claim 5, wherein: the angle adjusting mechanism comprises two arc-shaped toothed rings oppositely arranged at the bottom of the mounting plate and two rotating gears used in single cooperation with the two arc-shaped toothed rings, the two rotating gears are connected through a connecting shaft, and the connecting shaft is rotatably connected with the connecting plate and is connected with a second servo motor.