CN116837719A - Concrete bridge bottom surface crack detection device - Google Patents
Concrete bridge bottom surface crack detection device Download PDFInfo
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- CN116837719A CN116837719A CN202310829761.7A CN202310829761A CN116837719A CN 116837719 A CN116837719 A CN 116837719A CN 202310829761 A CN202310829761 A CN 202310829761A CN 116837719 A CN116837719 A CN 116837719A
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- 238000001514 detection method Methods 0.000 title claims abstract description 55
- 230000000712 assembly Effects 0.000 claims abstract description 10
- 238000000429 assembly Methods 0.000 claims abstract description 10
- 238000005096 rolling process Methods 0.000 claims abstract description 10
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/106—Movable inspection or maintenance platforms, e.g. travelling scaffolding or vehicles specially designed to provide access to the undersides of bridges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N33/383—Concrete or cement
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- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a concrete bridge bottom surface crack detection device, which belongs to the technical field of bridge detection and comprises a cross beam, a rolling support structure for supporting the cross beam, a first supporting beam and a second supporting beam which are respectively arranged at two ends of the cross beam, wherein straight line detection components are respectively arranged on horizontal beams of the first supporting beam and the second supporting beam, and arc detection components are arranged at the inner ends of the horizontal beams; the arc detection assembly comprises a torsion resetting device, a semicircular support frame, a sliding seat, a first driving assembly and a first crack detector, wherein the middle part of the semicircular support frame is connected to a horizontal beam through the torsion resetting device, the first crack detector is arranged on the sliding seat, the sliding seat can slide along the circumferential direction of the semicircular support frame through the driving of the first driving assembly, and the arc detection assemblies on the first supporting beam and the second supporting beam are staggered vertically. The device can carry out omnibearing detection on the bottom surface of the bridge, and can ensure that the device can continuously work so as to avoid the influence caused by interference of the bridge pier.
Description
Technical Field
The invention belongs to the technical field of bridge detection, and particularly relates to a concrete bridge bottom surface crack detection device.
Background
More than 90% of the damages to the concrete bridge are caused by cracks, and some cracks continuously generate and expand new cracks under the action of using load or external physical and chemical factors to form penetrating seams and deep seams, and mechanical discontinuities are formed in the bridge, so that the bearing capacity of the bridge is greatly reduced, even collapse accidents occur in severe cases, and normal use of the bridge structure is endangered. If the crack is discovered not timely, the crack is not processed timely, and the serious loss of personnel and property is caused. Cracks on the bottom surface of the bridge are not easily found, and accidents are generally more easily caused.
Some bridge bottom surface crack detection devices exist in the prior art, for example, CN214583107U discloses a concrete bridge bottom surface crack detection device, the device rotates through a control screw, a screw drives a linear sliding block to linearly move along a linear optical axis, and a crack joint detection instrument can be moved left and right along the bridge bottom surface, so that cracks are detected. However, the device has the problem that the device cannot avoid the bridge pier at the bottom of the bridge when moving along the longitudinal direction of the bridge, so that the continuous operation of the device is blocked to a certain extent.
Disclosure of Invention
Accordingly, the present invention is directed to a concrete bridge bottom crack detection device, which can detect the bottom of a bridge in all directions, and can allow the device to continuously work so as to avoid the influence of interference of bridge piers.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention relates to a concrete bridge bottom surface crack detection device, which comprises a cross beam, a rolling support structure for supporting the cross beam, a first supporting beam and a second supporting beam which are respectively arranged at two ends of the cross beam, wherein the first supporting beam and the second supporting beam both comprise a vertical beam and a horizontal beam which is connected with the vertical beam and is in an L shape, the upper end of the vertical beam is fixedly connected to the lower side of the cross beam, one end of the horizontal beam is fixedly connected with the vertical beam, the other end of the horizontal beam extends towards one side where the central section of the cross beam is positioned, straight line detection assemblies are respectively arranged on the horizontal beams of the first supporting beam and the second supporting beam, and arc detection assemblies are arranged at the inner ends of the horizontal beams; the arc detection assembly comprises a torsion resetting device, a semicircular support frame, a sliding seat, a first driving assembly and a first crack detector, wherein the middle part of the semicircular support frame is connected to a horizontal beam through the torsion resetting device, the first crack detector is arranged on the sliding seat, the sliding seat can slide along the circumferential direction of the semicircular support frame through the driving of the first driving assembly, and the arc detection assemblies on the first supporting beam and the second supporting beam are staggered vertically.
Further, the inboard slip of semi-circular support frame is provided with the second guide rail, be provided with on the semi-circular support frame and be used for controlling the gliding second drive assembly of second guide rail along the semi-circular support frame, the upper surface of second guide rail is through vertical support column fixedly connected with first guide rail, first guide rail and slide sliding fit, first drive assembly installs on the slide.
Further, the lateral surface of first guide rail is provided with first outer teeth of a cogwheel, first drive assembly including fix at the first gyro wheel support of slide bottom, with first gyro wheel that first gyro wheel support rotated and is connected, the upside of first guide rail seted up with first gyro wheel complex arc wall, be fixed with first motor on the slide, the output of first motor is connected with first gear, first gear with first outer teeth of a cogwheel meshing.
Further, the lateral surface of second guide rail is provided with second external gear tooth, second drive assembly includes the second motor with semi-circular support frame fixed connection, the output of second motor is connected with the second gear, second gear and second external gear tooth meshing.
Further, torsion resetting means includes step shaft and reset coil spring, the centre of semi-circular support frame has seted up with step shaft complex shoulder hole, the semi-circular support frame passes through step shaft and horizontal beam normal running fit, the outside cover of step shaft is equipped with reset coil spring, two link of reset coil spring are connected with horizontal beam and semi-circular support frame respectively.
Further, the spout has been seted up along its length direction on the horizontal beam, sharp detection component includes third motor, third gear, rack, connecting block and second crack detector, the third motor is fixed on the horizontal beam, the output of third motor is connected to the third gear, third gear and rack meshing, rack sliding fit is in the spout, the backside of rack is connected to the second crack detector through the connecting block.
Further, the rolling support structure comprises a second roller support and a second roller, the second roller support is fixed on the lower side of the cross beam, the second roller support is rotationally connected with the second roller, and the second roller is abutted to the upper surface of the bridge.
Further, the vertical beam is provided with a threaded hole, the threaded hole is connected with a screw rod, one end of the screw rod is connected with the vertical beam through a nut, the other end of the screw rod is fixedly connected with a third roller bracket, the third roller bracket is rotationally connected with a third roller, and the third roller is in butt joint with the side face of the bridge.
Further, the inner side of the semicircular support frame is connected with a support ring through springs, and the springs are uniformly distributed in the interval between the semicircular support frame and the support ring.
The invention has the beneficial effects that:
according to the concrete bridge bottom surface crack detection device, the bending curvature of the semicircular support frame is corresponding to the diameter of a bridge pier, the middle part of the semicircular support frame is connected to the horizontal beam through the torsion reset device, before the semicircular support frame is contacted with the bridge pier, the semicircular support frame keeps open under the action of the torsion pre-stress of the torsion reset device so as to avoid interference between the outer circumference of the semicircular support frame and the bridge pier when the semicircular support frame moves longitudinally, after the inner side wall at the rear end of the semicircular support frame is contacted with the bridge pier, the outer surface of the bridge pier is contacted with the inner side surface at the rear end of the support ring, the support ring and the semicircular support frame connected with the support ring are driven to rotate, and the support ring and the semicircular support frame restore to the original position under the action of the torsion reset device along with the movement of the horizontal beam until the bridge pier of the support ring is completely separated from the bridge pier, so that the bridge pier is avoided.
According to the device, the linear detection assemblies can detect the edge positions of the two sides of the bottom surface of the bridge, the arc detection assemblies can monitor the position of the bottom surface of the bridge, which is close to the central section, so that the device can avoid the bridge pier, and can detect cracks at dead angle positions of the periphery of the bridge pier at the bottom of the bridge, and the detection is more comprehensive.
In the device, the arc detection assemblies on the first supporting beam and the second supporting beam are vertically staggered, so that the interference problem of the first supporting beam and the second supporting beam is avoided.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
In order to make the objects, technical solutions and advantageous effects of the present invention more clear, the present invention provides the following drawings for description:
FIG. 1 is a schematic diagram of the structure of the device of the present invention;
FIG. 2 is a front view of the device of the present invention;
FIG. 3 is a schematic structural view of an arc detection assembly;
FIG. 4 is a top view of the arcuate detection assembly;
FIG. 5 is a schematic view of the structure of the first rail;
FIG. 6 is a schematic structural view of a linear detection assembly;
fig. 7 is a schematic diagram of the obstacle avoidance principle of the device of the present invention.
The figures are marked as follows: the beam 1, the rolling support structure 2, the first supporting beam 3, the second supporting beam 4, the vertical beam 5, the horizontal beam 6, the straight line detection component 7, the arc detection component 8, the semicircular support frame 9, the sliding seat 10, the first driving component 11, the first crack detector 12, the second guide rail 13, the second driving component 14, the vertical support column 15, the first guide rail 16, the first external gear teeth 17, the first roller bracket 18, the first roller 19, the arc groove 20, the first motor 21, the first gear 22, the second external gear teeth 23, the second motor 24, the second gear 25, the stepped shaft 26, the return coil spring 27, the sliding groove 28, the third motor 29, the third gear 30, the rack 31, the connecting block 32, the second crack detector 33, the second roller bracket 34, the second roller 35, the threaded hole 36, the screw 37, the nut 38, the third roller bracket 39, the third roller 40, the spring 41 and the support ring 42.
Detailed Description
As shown in fig. 1 to 6, the device for detecting cracks on the bottom surface of a concrete bridge according to the present invention comprises a cross beam 1, a rolling support structure 2 for supporting the cross beam 1, a first supporting beam 3 and a second supporting beam 4 respectively arranged at two ends of the cross beam 1, wherein the cross beam 1 is arranged along the transverse direction of the bridge by taking the extending direction of the bridge as the longitudinal direction, and the roller support structure is used for supporting the cross beam 1 on the upper side of the bridge, and can adopt rolling support or sliding support, so as to ensure that the cross beam 1 can move along the longitudinal direction of the bridge, and is used for detecting the positions of the bridge in all positions in the longitudinal direction. The first supporting beam 3 and the second supporting beam 4 are respectively located at two ends of the cross beam 1, and extend from the upper side to the lower side of the bridge to be connected to the detection device, and the first supporting beam 3, the second supporting beam 4 and the cross beam 1 are combined to be U-shaped.
Specifically, the first supporting beam 3 and the second supporting beam 4 each include a vertical beam 5, and a horizontal beam 6 connected with the vertical beam 5 and in an L-shape, the vertical beams 5 are vertically arranged, the upper ends of the vertical beams 5 are fixedly connected to the lower sides of the cross beams 1, and the horizontal beams 6 are arranged in a horizontal plane, and the extending directions of the horizontal beams are along the transverse direction. One end of the horizontal beam 6 is fixedly connected with the lower end of the vertical beam 5, and the other end of the horizontal beam 6 extends towards one side where the central section of the cross beam 1 is located, namely, the horizontal beams 6 of the first supporting beam 3 and the second supporting beam 4 are oppositely arranged, but the lengths of the vertical beams 5 of the first supporting beam 3 and the second supporting beam 4 are slightly different, so that interference problems are avoided. In some other embodiments, the specific structure of the first and second corbels 3, 4 may be suitably modified, with the ultimate objective of serving as a support for the arc detection assembly 8 to achieve balance of the overall apparatus.
The horizontal beams 6 of the first supporting beam 3 and the second supporting beam 4 are respectively provided with a linear detection component 7, the linear detection components 7 can detect cracks on the positions of the linear lengths of the horizontal beams 6, and the detection positions can be expanded from a line to a plane by longitudinally moving the cross beam 1, so that the detection positions can be understood by a person skilled in the art. Wherein, arc detection component 8 is installed to the inner of horizontal beam 6, i.e. the one end that is located the bridge inboard, and arc detection component 8 on first corbel 3 and the second corbel 4 stagger each other in vertical to avoid interfering the problem.
Specifically, the arc detection assembly 8 comprises a torsion reset device, a semicircular support frame 9, a sliding seat 10, a first driving assembly 11 and a first crack detector 12, the middle part of the semicircular support frame 9 is connected to the horizontal beam 6 through the torsion reset device, the semicircular support frame 9 can rotate around a rotation support point of the semicircular support frame, the first crack detector 12 is arranged on the sliding seat 10, the sliding seat 10 can slide along the circumference of the semicircular support frame 9 through the driving of the first driving assembly 11, and all positions on an arc line can be detected.
The avoiding process of the device is described in a distance below, the bending curvature of the semicircular support frame 9 is set to correspond to the diameter of the bridge pier, and the middle part of the semicircular support frame 9 is connected to the horizontal beam 6 through a torsion reset device. As shown in fig. 7, the first state is a state before the bridge is contacted with the supporting ring 42, before the bridge is contacted, the semicircular supporting frame 9 keeps open under the action of the torsion pre-stress of the torsion reset device, that is, the front end of the semicircular supporting frame 9 is radially outwards opened to a maximum angle, so as to avoid interference between the outer circumference of the semicircular supporting frame 9 and the bridge when the semicircular supporting frame 9 moves along the longitudinal direction, and after the inner side wall of the rear end of the semicircular supporting frame 9 is contacted with the bridge, the outer surface of the bridge is contacted with the inner side surface of the rear end of the supporting ring 42 until the second state is reached, and at this time, the supporting ring 42 is substantially coincident with the center of the bridge. The subsequent bridge pier drives the support ring 42 and the semicircular support frame 9 connected with the support ring to rotate, and the support ring 42 and the semicircular support frame 9 move along with the horizontal beam 6 until the bridge pier is completely separated from the support ring 6, so that the third state is achieved. Finally, the support ring 42 and the semicircular support frame 9 are restored to the original positions under the action of the torsion resetting device, so that the bridge pier is avoided.
In this embodiment, the inner side of the semicircular support frame 9 is slidably provided with a second guide rail 13, and the curvature of the second guide rail 13 is the same as that of the semicircular support frame 9, so that the second guide rail 13 can slide along the circumferential direction of the semicircular support frame 9, and the semicircular support frame 9 is provided with a second driving component 14 for controlling the second guide rail 13 to slide along the semicircular support frame 9. The upper surface of the second guide rail 13 is fixedly connected with a first guide rail 16 through a vertical support column 15, the first guide rail 16 can move along with the second guide rail 13, the first guide rail 16 is in sliding fit with the slide carriage 10, and the first driving assembly 11 is mounted on the slide carriage 10. Through setting up second guide rail 13, second drive assembly 14 can drive second guide rail 13 simultaneously and remove, can let the slide 10 of second guide rail 13 upside further rotate to improve the arc length that detects, can detect the dead angle at some bridge bottoms, more adapt to the needs on site.
In this embodiment, a first external gear tooth 17 is disposed on an outer side surface of a first guide rail 16, the first driving assembly 11 includes a first roller bracket 18 fixed at the bottom of the sliding seat 10, a first roller 19 rotationally connected with the first roller bracket 18, an arc-shaped slot 20 matched with the first roller 19 is disposed on an upper side of the first guide rail 16, a first motor 21 is fixed on the sliding seat 10, an output end of the first motor 21 is connected with a first gear 22, and the first gear 22 is meshed with the first external gear tooth 17. The first motor 21 drives the slide carriage 10 to slide along the first guide rail 16, so that control is facilitated. The first crack detector 12 on the slide 10 can thus also be moved together with the slide 10. Similarly, the outer side surface of the second guide rail 13 is provided with second external gear teeth 23, the second driving assembly 14 comprises a second motor 24 fixedly connected with the semicircular supporting frame 9, the output end of the second motor 24 is connected with a second gear 25, and the second gear 25 is meshed with the second external gear teeth 23.
In this embodiment, the torsion reset device comprises a stepped shaft 26 and a reset coil spring 27, a stepped hole matched with the stepped shaft 26 is formed in the center of the semicircular support frame 9, the lower end of the stepped shaft 26 is fixedly connected with the horizontal beam 6, the upper end of the stepped shaft 26 is used for rotatably supporting the semicircular support frame 9, and a bearing can be arranged between the stepped shaft and the semicircular support frame 9. The semicircular support frame 9 is in running fit with the horizontal beam 6 through the stepped shaft 26, a reset coil spring 27 is sleeved on the outer side of the stepped shaft 26, two connecting ends of the reset coil spring 27 are respectively connected with the horizontal beam 6 and the semicircular support frame 9, the reset coil spring 27 is used for providing elastic reset force, and after the semicircular support frame 9 is avoided and the pier is ended, the position of the semicircular support frame 9 is reset.
In this embodiment, the horizontal beam 6 is provided with a chute 28 along the length direction thereof, the chute 28 is a through slot which is vertically communicated, the linear detection assembly 7 comprises a third motor 29, a third gear 30, a rack 31, a connecting block 32 and a second crack detector 33, the third motor 29 is fixed on the horizontal beam 6, the output end of the third motor 29 is connected to the third gear 30, the third gear 30 is meshed with the rack 31, the rack 31 is slidably matched in the chute 28, the back side of the rack 31 is connected to the second crack detector 33 through the connecting block 32, and after the third motor 29 is started, the rack 31 is controlled to move back and forth along the length direction of the horizontal beam 6 through the third rack 31 so as to drive the second crack detector 33 to detect the transverse position.
In this embodiment, the rolling support structure 2 includes the second roller support 34 and the second roller 35, and the downside of crossbeam 1 is fixed with the second roller support 34, and second roller support 34 rotates with the second roller 35 to be connected, and the upper surface butt of second roller 35 and bridge can guarantee the stability of whole device through the support of rolling support structure 2, certainly, in order to improve the stability of device, the width of crossbeam 1 to and the quantity of second roller 35 can be adjusted as required.
In this embodiment, a threaded hole 36 is formed in the vertical beam 5, a screw rod 37 is connected in the threaded hole 36, one end of the screw rod 37 is connected with the vertical beam 5 through a nut 38, the other end of the screw rod 37 is fixedly connected with a third roller bracket 39, the third roller bracket 39 is rotationally connected with a third roller 40, and the third roller 40 is in butt joint with the side face of the bridge. Through all setting up third gyro wheel support 39 and third gyro wheel 40 in the both sides of bridge for spacing the both sides of device, can avoid the device to take place to deflect, can improve the stability of device in the time of detecting.
In this embodiment, the support ring 42 is connected with through the spring 41 to the inboard of semi-circular support frame 9, and support ring 42 is semi-circular, and spring 41 evenly distributed is in the interval between semi-circular support frame and support ring 42, through setting up support ring 42, can replace semi-circular support frame 9 and pier contact, increases the life of device, can cushion the device through setting up spring 41 to avoid the long-term hard contact problem of becoming flexible that the collision brought of device.
Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the invention, and that, although the invention has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (9)
1. A concrete bridge bottom surface crack detection device, its characterized in that: the device comprises a cross beam, a rolling support structure for supporting the cross beam, and a first supporting beam and a second supporting beam which are respectively arranged at two ends of the cross beam, wherein the first supporting beam and the second supporting beam comprise vertical beams and horizontal beams which are connected with the vertical beams and are L-shaped, the upper ends of the vertical beams are fixedly connected to the lower side of the cross beam, one end of each horizontal beam is fixedly connected with the vertical beams, the other end of each horizontal beam extends towards one side where the central section of the cross beam is located, linear detection assemblies are respectively arranged on the horizontal beams of the first supporting beam and the second supporting beam, and arc detection assemblies are arranged at the inner ends of the horizontal beams; the arc detection assembly comprises a torsion resetting device, a semicircular support frame, a sliding seat, a first driving assembly and a first crack detector, wherein the middle part of the semicircular support frame is connected to a horizontal beam through the torsion resetting device, the first crack detector is arranged on the sliding seat, the sliding seat can slide along the circumferential direction of the semicircular support frame through the driving of the first driving assembly, and the arc detection assemblies on the first supporting beam and the second supporting beam are staggered vertically.
2. The concrete bridge floor crack detection device of claim 1, wherein: the inner side of the semicircular support frame is provided with a second guide rail in a sliding manner, the semicircular support frame is provided with a second driving assembly used for controlling the second guide rail to slide along the semicircular support frame, the upper surface of the second guide rail is fixedly connected with a first guide rail through a vertical support column, the first guide rail is in sliding fit with the sliding seat, and the first driving assembly is installed on the sliding seat.
3. The concrete bridge floor crack detection device of claim 2, wherein: the outer side of first guide rail is provided with first outer teeth of a cogwheel, first drive assembly including fix at the first gyro wheel support of slide bottom, with first gyro wheel that first gyro wheel support rotated and is connected, the upside of first guide rail seted up with first gyro wheel complex arc wall, be fixed with first motor on the slide, the output of first motor is connected with first gear, first gear with first outer teeth of a cogwheel meshing.
4. A concrete bridge floor crack detection device as recited in claim 3, wherein: the outer side face of the second guide rail is provided with second external gear teeth, the second driving assembly comprises a second motor fixedly connected with the semicircular supporting frame, the output end of the second motor is connected with a second gear, and the second gear is meshed with the second external gear teeth.
5. The concrete bridge floor crack detection device of claim 1, wherein: the torsion reset device comprises a stepped shaft and a reset coil spring, a stepped hole matched with the stepped shaft is formed in the center of the semicircular support frame, the semicircular support frame is in running fit with the horizontal beam through the stepped shaft, the reset coil spring is sleeved on the outer side of the stepped shaft, and two connecting ends of the reset coil spring are connected with the horizontal beam and the semicircular support frame respectively.
6. The concrete bridge floor crack detection device of claim 1, wherein: the sliding chute is formed in the horizontal beam along the length direction of the horizontal beam, the linear detection assembly comprises a third motor, a third gear, a rack, a connecting block and a second crack detector, the third motor is fixed on the horizontal beam, the output end of the third motor is connected to the third gear, the third gear is meshed with the rack, the rack is in sliding fit in the sliding chute, and the back side of the rack is connected to the second crack detector through the connecting block.
7. The concrete bridge floor crack detection device of claim 1, wherein: the rolling support structure comprises a second roller support and a second roller, wherein the second roller support is fixed on the lower side of the cross beam and is connected with the second roller in a rotating mode, and the second roller is abutted to the upper surface of the bridge.
8. The concrete bridge floor crack detection device of claim 1, wherein: the vertical beam is provided with a threaded hole, the threaded hole is connected with a screw rod, one end of the screw rod is connected with the vertical beam through a nut, the other end of the screw rod is fixedly connected with a third roller support, the third roller support is rotationally connected with a third roller, and the third roller is in butt joint with the side face of the bridge.
9. A concrete bridge floor crack detection device according to any one of claims 1-8, characterized in that: the inner side of the semicircular support frame is connected with a support ring through springs, and the springs are uniformly distributed in the interval between the semicircular support frame and the support ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310829761.7A CN116837719A (en) | 2023-07-07 | 2023-07-07 | Concrete bridge bottom surface crack detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310829761.7A CN116837719A (en) | 2023-07-07 | 2023-07-07 | Concrete bridge bottom surface crack detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116837719A true CN116837719A (en) | 2023-10-03 |
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ID=88163116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310829761.7A Pending CN116837719A (en) | 2023-07-07 | 2023-07-07 | Concrete bridge bottom surface crack detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116837719A (en) |
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2023
- 2023-07-07 CN CN202310829761.7A patent/CN116837719A/en active Pending
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