CN115111994A - Highway bridge tunnel crack depth measuring instrument - Google Patents
Highway bridge tunnel crack depth measuring instrument Download PDFInfo
- Publication number
- CN115111994A CN115111994A CN202210877126.1A CN202210877126A CN115111994A CN 115111994 A CN115111994 A CN 115111994A CN 202210877126 A CN202210877126 A CN 202210877126A CN 115111994 A CN115111994 A CN 115111994A
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- China
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- plate body
- plate
- measuring instrument
- depth measuring
- crack depth
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/18—Measuring arrangements characterised by the use of mechanical techniques for measuring depth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention relates to a highway bridge tunnel crack depth measuring instrument, which comprises a flexible plate body; the two connecting ropes are respectively arranged on two sides of the plate body, and the lower ends of the two connecting ropes are fixedly connected with the lower end of the plate body; the two reels are respectively erected on two sides of the plate body, and the upper ends of the connecting ropes are wound on the reels; the input ends of the two linear displacement assemblies are fixedly connected with a wheel shaft of the reel, a cross rod is arranged between the two linear displacement assemblies, and the two ends of the cross rod are respectively connected with the output ends of the corresponding linear displacement assemblies; the drawing device is arranged on one side of the plate body and used for drawing a position direction change diagram of the cross rod.
Description
Technical Field
The invention relates to the technical field of measuring instruments, in particular to a highway bridge tunnel crack depth measuring instrument.
Background
In the construction of highway bridge tunnel projects, because the geological condition of the construction area is relatively poor, the problem of uneven settlement of the foundation easily occurs, the concrete structure is damaged due to the settlement of the foundation in bridge engineering, the structural deformation is overlarge, when the deformation pressure exceeds the bearing pressure of the bridge structure, the crack of the bridge structure can be caused, or the crack caused by the secondary stress generated by the external load is caused because the external load is overlarge and the large impact influence is generated on the concrete structure, or the internal temperature is lower, the external temperature is higher, the surface stress of the concrete can be larger, and the bearing capacity of the concrete structure is exceeded, so that the crack problem can occur on the surface of a highway bridge.
The highway bridge tunnel cracks, the exposed quantity of the reinforcing steel bar materials on the ground can be directly increased, the corrosion of the reinforcing steel bar materials in the external environment such as rainwater and insolation weather is aggravated, the bearing capacity of the highway is further reduced, and the occurrence probability of road collapse accidents is increased. And may change the balance stability of the internal structure of the road, resulting in unbalance of the internal stable structure and occurrence of a partial collapse accident.
Therefore, once a concrete crack problem occurs in a road bridge tunnel, the crack needs to be immediately organized and treated, and in order to select a proper repair scheme and repair time, the length, the width, the depth and the direction of the crack are all very important data.
As the cracks are generally not vertical, the trend of the cracks in the length direction can be visually observed through naked eyes, the trend of the cracks in the depth direction can not be visually observed, and the trend of the cracks is also an important reference index for judging the damage severity of the concrete road bridge.
The existing crack depth measuring methods comprise coring or section measuring, ultrasonic measuring, thin iron wire measuring and the like, and the measuring methods can measure the depth of the crack, but cannot judge the trend of the deep part of the crack, so that the judgment of the severity of the crack by a worker is inaccurate.
Disclosure of Invention
Aiming at the defects in the prior art, the highway bridge tunnel crack depth measuring instrument provided by the invention can output a walking diagram in the crack depth direction while measuring the crack depth, so that a worker can judge the crack damage degree more accurately.
The invention provides a highway bridge tunnel crack depth measuring instrument, which comprises:
a flexible plate body;
the two connecting ropes are respectively arranged on two sides of the plate body, and the lower ends of the two connecting ropes are fixedly connected with the lower end of the plate body;
the two reels are respectively erected on two sides of the plate body, and the upper ends of the connecting ropes are wound on the reels;
the input ends of the two linear displacement assemblies are fixedly connected with a wheel shaft of the reel, a cross rod is arranged between the two linear displacement assemblies, and the two ends of the cross rod are respectively connected with the output ends of the corresponding linear displacement assemblies;
and the drawing device is arranged on one side of the plate body and is used for drawing a position change diagram of the cross rod.
Preferably, the drawing device comprises a vertical rod, the vertical rod is arranged in the middle of the two linear displacement assemblies, is perpendicular to the cross rod and is parallel to the plate body, one end of the vertical rod is fixedly connected with the cross rod, the other end of the vertical rod is fixedly provided with a drawing pen, and the drawing pen is perpendicular to the vertical rod; the drawing board is matched with the drawing pen in position and is arranged on one side of the board body.
Preferably, the linear displacement assembly comprises a gear which is coaxially arranged on one side of the plate body with the reel; the chain meshes with the gear mutually, and its length direction is parallel with the length direction of plate body, sets up the one side that is close to the drawing board at the gear, the equal fixedly connected with elastic webbing in both ends of horizontal pole, the elastic webbing deviates from the one end and the chain fixed connection of horizontal pole.
Preferably, the device also comprises a bracket which comprises a bottom plate and is arranged on one side of the plate body; the first supporting plate is vertically arranged on the first supporting plate, and the lower end of the first supporting plate is fixedly connected with the bottom plate and used for erecting a reel and a gear.
Preferably, the drawing board comprises two second supporting plates which are fixedly arranged on the bottom plate along the vertical direction; two parallel shaft levers are erected between the two second supporting plates; the canvas is wound on the two shaft rods.
Preferably, the top and the bottom of the shaft lever are both provided with semicircular guide plates, the two ends of each guide plate are fixedly connected with the second supporting plate, and the chain is erected on the two guide plates.
Preferably, a ball is embedded in one side of the guide plate close to the chain.
Preferably, still include the limiting plate, fixedly set up between plate body and the first backup pad, offer the spacing hole that is used for connecting the rope and passes on the limiting plate.
Preferably, the two sides of the plate body are both provided with guide holes, and the lower end of the connecting rope penetrates through the inner parts of the guide holes.
Preferably, the outer surface of the plate body is provided with scales along the length direction thereof.
Compared with the prior art, the highway bridge tunnel crack depth measuring instrument provided by the invention has the beneficial effects that:
1. according to the invention, the plate body is arranged to extend into the crack, the lower end of the plate body is connected through the connecting rope, when the crack turns, the plate body is bent along with the connecting rope, the downward moving amount of the connecting rope on two sides of the plate body is different, the bending direction of the plate body is towards one side of the connecting rope with smaller downward moving amount, the downward moving amount of the connecting rope is synchronously transferred to the output end of the linear displacement assembly through the linear displacement assembly, the position direction of the cross rod is the trend of the crack when the cross rod moves downwards along with the linear displacement assembly through the arrangement of the cross rod, the trend of the crack can be visually seen through drawing the position direction of the cross rod when the cross rod moves downwards through the drawing device, and the severity of the crack can be conveniently judged by a worker.
2. The drawing device comprises the vertical rods, wherein the vertical rods are perpendicular to the transverse rods, so that when one end of each transverse rod moves downwards more than the other end of each transverse rod, the transverse rods can rotate, the rotating angle can be reflected through the rotating angle of the lower ends of the vertical rods, and the rotating direction of the lower ends of the vertical rods, namely the direction of cracks, can be used for judging the direction of the cracks more accurately.
3. The canvas is wound on the shaft rods, the chains are arranged around the peripheries of the canvases, the position of the canvas is convenient to adjust, and the situation that the length of the canvas is not enough is avoided.
4. According to the invention, the balls are arranged on one side of the guide plate close to the chain, so that the moving resistance of the chain is reduced, and the chain is prevented from influencing the downward movement of the plate body.
5. According to the invention, the guide holes are formed in the two sides of the plate body, the connecting rope is arranged in the guide holes in a penetrating manner, so that the lower end of the connecting rope can be tightly attached to the plate body and can follow the trend of the plate body more accurately, the condition that two points are stretched into a straight line is avoided, and the trend of a crack can be judged more accurately by the device.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the A-A interface of FIG. 1 in accordance with the present invention;
FIG. 3 is a left side view of the present invention;
FIG. 4 is a schematic view of the connection between the drawing pen and the chain according to the present invention;
FIG. 5 is a cross-sectional view of the interface B-B of FIG. 4 in accordance with the present invention;
fig. 6 is a partial enlarged view of the invention at C in fig. 2.
Description of reference numerals:
1. a base plate; 2. a second support plate; 3. a first support plate; 4. a canvas; 6. a guide plate; 7. a plate body; 8. a chain; 9. a cross bar; 10. a gear; 11. a reel; 12. connecting ropes; 13. a limiting plate; 14. a guide hole; 15. an elastic band; 16. a vertical rod; 17. a drawing pen; 18. and a ball.
Detailed Description
The following detailed description of the present invention is provided in conjunction with fig. 1 through 6, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
As shown in fig. 1 and 6, the present invention provides a road bridge and tunnel crack depth measuring instrument, which comprises a flexible plate 7; the two connecting ropes 12 are respectively arranged on two sides of the plate body 7, and the lower ends of the two connecting ropes 12 are fixedly connected with the lower end of the plate body 7; two reels 11 are respectively erected on two sides of the plate body 7, and the upper ends of the connecting ropes 12 are wound on the reels 11; the fixed parts of the two linear displacement assemblies are fixedly connected with the wheel shaft of the reel 11, a cross rod 9 is arranged between the two linear displacement assemblies, and the two ends of the cross rod 9 are respectively connected with the movable parts of the corresponding linear displacement assemblies; the drawing device is arranged on one side of the plate body 7 and is used for drawing a position direction change diagram of the cross rod 9.
The plate body 7 specifically selects a strip-shaped thin plate which can be bent towards the thickness direction of the plate body, but cannot be bent towards the width direction of the plate body, so that the plate body 7 is prevented from being bent towards the length direction of the crack.
When the device is used, the lower end of the plate body 7 is inserted into a crack, a worker pushes the plate body 7 downwards, when the crack is vertically downward, the connecting ropes 12 on the two sides of the plate body 7 synchronously move downwards to drive the reel 11 to rotate, the moving parts of the two linear displacement assemblies synchronously move downwards to drive the cross rod 9 to move downwards, and at the moment, the cross rod 9 keeps moving downwards in the horizontal direction;
when the plate body 7 is bent to a certain angle towards one side of the A direction when meeting the turning position of a crack, the downward moving speed of the connecting rope 12 on the A side is relatively slow, the downward moving speed of the connecting rope 12 on the other side (B side) is relatively fast, the rotating speed of the wheel shaft of the reel 11 on the A side is less than that of the reel 11 on the B side, the downward moving amount of the moving part of the linear displacement component on the A side is less than that of the moving part of the linear displacement component on the B side, the transverse rod 9 is driven to rotate for a certain angle while moving downward, the rotating direction is the direction of the crack, and the rotating direction of the transverse rod 9 is drawn through the drawing device, namely the direction of the crack is visually seen.
As shown in fig. 4 and 5, the drawing device of the present embodiment includes a vertical rod 16 disposed at the middle position of the two linear displacement assemblies, perpendicular to the cross rod 9, parallel to the plate 7, and one end of the vertical rod is fixedly connected to the cross rod 9, and the other end of the vertical rod is fixedly provided with a drawing pen 17, wherein the drawing pen 17 is perpendicular to the vertical rod 16; and the drawing board is matched with the drawing pen 17 in position and is arranged on one side of the board body 7.
The vertical rod 16 and the cross rod 9 are vertically arranged, the lower end of the vertical rod 16 is connected with a drawing pen 17, when the cross rod 9 rotates, the vertical rod 16 rotates to the corresponding side, and a path which rotates once and moves downwards is drawn through the drawing pen 17.
As shown in fig. 2, the linear displacement assembly comprises a gear 10, which is mounted on one side of the plate 7 coaxially with the reel 11; chain 8, with gear 10 engaged with, its length direction is parallel with the length direction of plate body 7, sets up the one side that is close to the drawing board at gear 10, and the equal fixed connection elastic webbing 15 in both ends of horizontal pole 9, elastic webbing 15 deviate from the one end and the 8 fixed connection of chain of horizontal pole 9.
During initial position, horizontal pole 9 keeps the level, and both ends are connected with one of them chain link of corresponding chain 8, connect through elastic webbing 15, when two chains 8 remove asynchronous, can drive horizontal pole 9 and rotate certain angle.
The cross bar 9 can also be an expansion bar, and two ends of the expansion bar are hinged with one of the chain links of the corresponding chain 8.
As shown in fig. 1, the utility model also comprises a bracket, which comprises a bottom plate 1 arranged at one side of the plate body 7; and the first support plate 3 is vertically arranged on the first support plate 3, and the lower end of the first support plate 3 is fixedly connected with the bottom plate 1 and used for erecting a reel 11 and a gear 10.
In this embodiment, the drawing board comprises two second supporting plates 2, which are fixedly arranged on the bottom plate 1 along the vertical direction; two parallel shaft levers 5, which are arranged between the two second supporting plates 2; the canvas 4 is wound on the two shaft rods 5.
In order to make chain 8 be close to the canvas setting, the top and the bottom of axostylus axostyle 5 all are provided with semicircular deflector 6, the both ends of deflector 6 all with second backup pad 2 fixed connection, chain 8 erects on two deflectors 6.
Like this, chain 8 can be close to canvas 4's periphery setting, and when chain 8 drove horizontal pole 9 and remove to the bottommost of support, still can turn to canvas 4's the back and draw on canvas 4, unpack canvas 4 apart after the measurement is accomplished and pave the complete crack and walk the picture promptly.
In order to avoid the situation that the plate body 7 is pushed immovably due to the fact that the device is excessively heavy when the plate body 7 moves downwards, the ball 18 is embedded in one side, close to the chain 8, of the guide plate 6, and the load of the plate body 7 is reduced.
In order to make the lower extreme of connecting rope 12 near plate body 7, still include limiting plate 13, fixedly set up between plate body 7 and the first backup pad 3, offer the spacing hole that is used for connecting rope 12 and passes on the limiting plate 13, guiding hole 14 has all been seted up to the both sides of plate body 7, and the lower extreme of connecting rope 12 passes from guiding hole 14 is inside, makes connecting rope 12 more accurately transmit out fissured camber.
Furthermore, the outer surface of the plate body 7 is provided with scales along the length direction, and the crack depth can be measured while the crack trend is judged.
The working principle is as follows:
when the highway bridge tunnel crack depth measuring instrument is used, two linear displacement assemblies are respectively arranged on two sides of a crack, a worker stretches the lower end of a plate body 7 into the crack to push the plate body 7 downwards, at the moment, connecting ropes 12 on two sides of the plate body 7 move downwards along with the connecting ropes to pull a reel 11 to rotate, a wheel shaft of the reel 11 drives a gear 10 to rotate, the gear 10 drives a chain 8 to move, the chain 8 moves to drive a cross rod 9 connected with the chain to move, when the downward moving amounts of the two chains 8 are inconsistent, the cross rod 9 deflects, the deflecting direction is the deflecting direction of the crack, and the deflecting direction of the cross rod 9 is drawn through a drawing pen 17 to visually see the trend of the crack.
The plate body is arranged to extend into the crack, the lower end of the plate body is connected through the connecting rope, the plate body bends along with the crack when the crack turns, the downward moving amount of the connecting rope on two sides of the plate body is different, the bending direction of the plate body is towards one side of the connecting rope with smaller downward moving amount, the downward moving amount of the connecting rope is synchronously transferred to the output end of the linear displacement assembly through the linear displacement assembly, the position direction of the cross rod is the trend of the crack when the cross rod moves downwards along with the linear displacement assembly through the arrangement of the cross rod, the trend of the crack can be visually seen through drawing the position direction of the cross rod when the cross rod moves downwards through the drawing device, and important reference is provided for a worker to judge the severity degree of the crack.
The above disclosure is only for the preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (10)
1. The utility model provides a highway bridge tunnel crack depth measuring apparatu which characterized in that includes:
a flexible plate body (7);
the two connecting ropes (12) are respectively arranged on two sides of the plate body (7), and the lower ends of the two connecting ropes (12) are fixedly connected with the lower end of the plate body (7);
two reels (11) which are respectively erected on two sides of the plate body (7), and the upper ends of the connecting ropes (12) are wound on the reels (11);
the fixed parts of the two linear displacement assemblies are fixedly connected with a wheel shaft of the reel (11), a cross rod (9) is arranged between the two linear displacement assemblies, and two ends of the cross rod (9) are respectively connected with the movable parts of the corresponding linear displacement assemblies;
and the drawing device is arranged on one side of the cross rod (9) and is used for drawing a displacement change diagram of the cross rod (9).
2. The road bridge and tunnel crack depth measuring instrument as claimed in claim 1, wherein the drawing device comprises a vertical rod (16) arranged at the middle position of the two linear displacement components, the vertical rod (9) is perpendicular to the cross rod (9), one end of the vertical rod is fixedly connected with the cross rod (9), the other end of the vertical rod is fixedly provided with a drawing pen (17), and the drawing pen (17) is perpendicular to the vertical rod (16); the drawing board is matched with the drawing pen (17) in position and is arranged on one side of the board body (7).
3. A road bridge tunnel crack depth measuring instrument as claimed in claim 2, characterized in that the linear displacement assembly comprises a gear (10) mounted on one side of the plate body (7) coaxially with the reel (11); chain (8), with gear (10) meshing mutually, its length direction is parallel with the length direction of plate body (7), sets up the one side that is close to the drawing board in gear (10), the equal fixedly connected with elastic webbing (15) in both ends of horizontal pole (9), elastic webbing (15) deviate from the one end and chain (8) fixed connection of horizontal pole (9).
4. A road bridge tunnel crack depth measuring instrument according to claim 3, characterized by further comprising a bracket, which comprises a bottom plate (1) arranged on one side of the plate body (7); the first supporting plate (3) is vertically arranged on the bottom plate (1), and the lower end of the first supporting plate is fixedly connected with the bottom plate (1) and used for erecting a reel (11) and a gear (10).
5. A road bridge tunnel crack depth measuring instrument as claimed in claim 4, characterized in that the drawing board comprises two second supporting plates (2) which are fixedly arranged on the bottom plate (1) along the vertical direction; two parallel shaft levers (5) are arranged between the two second supporting plates (2); the canvas (4) is wound on the two shaft rods (5).
6. A road bridge tunnel crack depth measuring instrument as claimed in claim 5, characterized in that the top and bottom of the shaft lever (5) are provided with semicircular guide plates (6), both ends of the guide plates (6) are fixedly connected with the second supporting plate (2), and the chain (8) is erected on the two guide plates (6).
7. A road bridge tunnel crack depth measuring instrument as claimed in claim 6, characterized in that the guide plate (6) is embedded with a ball (18) on the side close to the chain (8).
8. The road bridge tunnel crack depth measuring instrument of claim 1, further comprising a limiting plate (13), wherein the limiting plate (13) is fixedly arranged between the plate body (7) and the first supporting plate (3), and a limiting hole for the connecting rope (12) to pass through is formed in the limiting plate (13).
9. The road bridge tunnel crack depth measuring instrument of claim 1, characterized in that the plate body (7) is provided with guide holes (14) on both sides, and the lower ends of the connecting ropes (12) pass through the guide holes (14).
10. A road bridge tunnel crack depth measuring instrument as claimed in claim 1, characterized in that the outer surface of the plate body (7) is provided with graduations along its length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210877126.1A CN115111994A (en) | 2022-07-25 | 2022-07-25 | Highway bridge tunnel crack depth measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210877126.1A CN115111994A (en) | 2022-07-25 | 2022-07-25 | Highway bridge tunnel crack depth measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115111994A true CN115111994A (en) | 2022-09-27 |
Family
ID=83334658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210877126.1A Pending CN115111994A (en) | 2022-07-25 | 2022-07-25 | Highway bridge tunnel crack depth measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115111994A (en) |
-
2022
- 2022-07-25 CN CN202210877126.1A patent/CN115111994A/en active Pending
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