Bridge perpendicularity detection device

Abstract

The utility model discloses a bridge verticality detection device which comprises a guide inhaul cable, two ends of the guide inhaul cable are provided with connecting pieces, one connecting piece is fixed at the top of a bridge, the other connecting piece is fixed at the bottom of the bridge, the guide inhaul cable is sleeved with a detection plate, the detection plate is provided with a detection rod in a springing mode, and the detection rod abuts against the surface of a bridge pier. The two ends of the guiding inhaul cable are fixed to the top and the bottom of the bridge through connecting pieces respectively, so that the guiding inhaul cable is tensioned on the side of the to-be-detected bridge pier in a vertical posture. Afterwards, the detection plate can slide down from top to bottom, the detection rod abuts against the surface of the pier and correspondingly bounces according to possible inclination of the detection rod, and the inclination of the bridge can be calculated through the sliding stroke of the detection rod at the top and the bottom of the pier. Compared with the prior art, the two ends of the guiding inhaul cable are in a fixed state, so that the situation that the guiding inhaul cable is blown by wind to swing is not prone to occurring, and the detected perpendicularity precision of the bridge is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge detection technical field, in particular, relate to a bridge perpendicularity detection device. BACKGROUND

[0002] In the construction of bridge, the perpendicularity of the pier needs to be detected, if the pier is inclined, the bearing capacity will be greatly reduced, and the quality of the bridge is affected. The plumb line is used to measure the perpendicularity of the pier, which is a common method. The measurement process is as follows:

[0003] 1. Under the condition of no wind, the line hammer is hung on the test part of the pier;

[0004] 2. The horizontal distance a1 from the upper surface of the pier in the test range to the plumb line and the horizontal distance a2 from the lower surface to the plumb line are measured by using the measuring ruler. At the same time, the height H of the pier in the test range is measured;

[0005] 3. According to the measured a1, a2 and H values, the slope D=a1-a2 of the pier in the test height range can be calculated. Then, the formula B=D / Hx100 is used to calculate the perpendicularity B of the pier (%).

[0006] The above measurement method has high requirements for the measurement environment, that is, the measurement should be carried out under the condition of no wind, so as to reduce the influence of the swing of the plumb line on the measurement result. When there is wind, the plumb line is easy to swing, which reduces the measurement accuracy. UTILITY MODEL CONTENTS

[0007] The utility model aims at overcoming the defects of prior art, and provides a bridge perpendicularity detection device.

[0008] The utility model aims at overcoming the defects of prior art, and provides a bridge perpendicularity detection device.

[0009] A bridge perpendicularity detection device, including guide cable, both ends of the guide cable are provided with connecting piece, one connecting piece is fixed on the top of the bridge, the other connecting piece is fixed on the bottom of the bridge, so that the guide cable is tensioned on the side of the pier, the detection plate is sleeved on the guide cable, the detection rod is elastically arranged on the detection plate, and the detection rod abuts on the surface of the pier.

[0010] Preferably, the connecting piece comprises a bolt mechanism or a negative pressure mechanism.

[0011] Preferably, the displacement sensor is arranged on the detection plate, and the displacement sensor is used for monitoring the displacement stroke of the detection rod.

[0012] Preferably, the guide cable is distributed with at least two along the circumference of the pier, the detection plate is an arc plate, and the detection rod is provided with at least two along the circumference.

[0013] Preferably, the guide cable is two and opposite to the two sides of the pier.

[0014] Preferably, the detection plate is a hoop structure.

[0015] Preferably, the end of the detection rod is provided with a roller abutting against the surface of the pier.

[0016] Preferably, an oil bag is arranged in the sliding cavity of the detection rod, a liquid outlet pipe is arranged on the oil bag, a pressure valve is arranged in the liquid outlet pipe, the pressure valve is adapted to allow fluid to flow out of the liquid outlet pipe when the oil bag is pressed, and the liquid outlet pipe is opposite to the roller.

[0017] Preferably, a flange is arranged on the detection rod, and the flange is provided with the oil bag on both sides.

[0018] The beneficial effects of the utility model are as follows: the two ends of the guide cable are fixed to the top and bottom of the bridge through the connecting pieces, so that the guide cable is stretched in a vertical posture beside the to-be-detected pier. Then, the detection plate can slide down from top to bottom, the detection rod abuts against the surface of the pier and elastically rebounds according to the possible inclination, and the inclination of the bridge can be calculated through the sliding stroke of the detection rod at the top and bottom of the pier. Compared with the prior art, the two ends of the guide cable of the utility model are in a fixed state, so that the guide cable is not easy to swing due to wind blowing, and the precision of the detected verticality of the bridge is higher. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of an embodiment;

[0020] Figure 2 It is an enlarged view of A of Figure 1

[0021] Mark: 1, guide cable; 2, connecting piece; 3, detection plate; 4, detection rod; 5, displacement sensor; 6, roller; 7, oil bag; 8, liquid outlet pipe; 10, flange. DETAILED DESCRIPTION

[0022] The technical scheme of the utility model will be described clearly and completely in combination with embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] As​Figure 1 、 Figure 2 As shown in FIGS. 1-3, a bridge verticality detection device includes a guide cable 1, both ends of the guide cable 1 are provided with a connecting piece 2, so that one connecting piece 2 can be fixed on the top of the bridge, and the other connecting piece 2 can be fixed on the bottom of the bridge, so that the guide cable 1 can be tensioned on the side of the bridge pier to be detected. And the guide cable 1 is also sleeved with a detection plate 3, and the detection plate 3 is provided with a detection rod 4 through an elastic member.

[0024] In the specific detection, the detection personnel can reach the top of the bridge pier through the bridge hanging basket, and then fix the top of the guide cable 1 on the top of the bridge pier through the connecting piece 2, and the other detection personnel can fix the bottom of the guide cable 1 on the bottom of the bridge. Among them, the verticality of the guide cable 1 itself can be ensured by a laser instrument or the like. Then, the detection plate 3 can be free falling, and the detection rod 4 will abut against the surface of the bridge pier. If the bridge pier is inclined, the detection rod 4 will be elastically moved, and the inclination of the bridge can be calculated by the sliding stroke of the detection rod 4 at the top and bottom of the bridge pier.

[0025] In some embodiments, the guide cable 1 is distributed with at least two along the circumference of the bridge pier, and the detection plate 3 is an arc plate, so that the detection rod 4 can also be provided with at least two along the circumference of the bridge pier. Through multiple groups of detection rods 4, the inclination of the bridge pier can be more accurately obtained.

[0026] Figure 1 The example shows that the guide cable 1 is two and opposite on both sides of the bridge pier, and the detection plate 3 is preferably a hoop structure in this example. The hoop structure is a common mechanism in the mechanical field, that is, the detection plate 3 can be spliced by two units, so that the detection plate 3 can form a whole circle on the outside of the bridge pier, and especially two groups of detection rods 4 can be installed in opposite positions in the circumferential direction. Through the calculation and comparison of the two groups of detection rods 4, the inclination of the bridge pier can be more accurately obtained.

[0027] For example, a displacement sensor 5 can also be provided on the detection plate 3, which can monitor the displacement stroke of the detection rod 4 in real time. On the one hand, it is not necessary to manually measure the elastic movement value of the detection rod 4, and on the other hand, it can also detect the surface condition of the bridge. For example, when the middle part of the bridge has a protrusion, the displacement sensor 5 can record the abnormal movement of the detection rod 4 at this position.

[0028] In some embodiments, the connecting piece 2 can include a bolt mechanism or a negative pressure mechanism. The bolt mechanism can be used to tightly nail the top of the guide cable 1 on the top of the bridge through a bolt, and the bottom of the guide cable 1 can be fixed on the ground through a bolt. The negative pressure mechanism uses the principle of negative pressure to fix the object. Both the two connecting pieces 2 are common fixing mechanisms in the prior art, and thus will not be described in detail.

[0029] In the preferred example, the end of the detection rod 4 is provided with a roller 6, which abuts against the surface of the pier. When the detection plate 3 is free-falling, the roller 6 can provide rolling friction for the detection rod 4, so that the use state of the detection rod 4 is more reliable.

[0030] For example, an oil bag 7 can also be arranged in the sliding cavity of the detection rod 4. In detail, the detection rod 4 is provided with a flange 10, and the two sides of the flange 10 are provided with the oil bag 7. Alternatively, one oil bag 7 can be distributed on the two sides of the flange 10 in a folded manner. The oil bag 7 is further provided with a liquid outlet pipe 8, and the liquid outlet pipe 8 is further provided with a pressure valve (not shown in the figure). The pressure valve is adapted to allow fluid to flow out of the liquid outlet pipe 8 when the oil bag 7 is pressed, and the liquid outlet pipe 8 is arranged opposite to the roller 6.

[0031] Before the detection plate 3 is free-falling, the detection personnel can fill lubricating oil in the oil bag 7. When the detection plate 3 is free-falling, if the bridge is inclined, the detection rod 4 will be correspondingly bounced and press the oil bag 7, at this time, the lubricating oil is coated to the roller 6 from the liquid outlet pipe 8, so that the friction of the roller 6 is reduced, and the service life of the roller 6 is higher.

[0032] The above is only the preferred embodiment of the present application, and it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein by the above-mentioned teaching or related technical or knowledge. The modification and change made by the person skilled in the art without departing from the spirit and scope of the present application shall be within the protection scope of the claims attached to the present application.

Claims

1. A bridge verticality detection device, characterized by: The utility model provides a bridge pier displacement detection device, including guide cable (1), both ends of guide cable (1) are provided with connecting piece (2), one connecting piece (2) is fixed to bridge top, another connecting piece (2) is fixed to bridge bottom, so that guide cable (1) is drawn in the side of bridge pier, the sleeve joint of detection plate (3) is set on guide cable (1), the elastic setting of detection rod (4) is set on detection plate (3), detection rod (4) abuts on the surface of bridge pier.

2. The bridge verticality detection device according to claim 1, characterized in that: The connecting piece (2) comprises a bolt mechanism or a negative pressure mechanism.

3. The bridge verticality detection apparatus according to claim 1, characterized by: The detection plate (3) is provided with a displacement sensor (5), and the displacement sensor (5) is used for monitoring the displacement stroke of the detection rod (4).

4. The bridge verticality detection apparatus according to claim 1, characterized by: The guide cable (1) is distributed along the circumference of the pier at least two, the detection plate (3) is an arc plate, the detection rod (4) is provided with at least two along the circumference.

5. The bridge verticality detection apparatus according to claim 4, characterized by: The guide cable (1) is two and opposite on both sides of the pier.

6. The bridge verticality detection device according to claim 5 or 4, characterized in that: The detection plate (3) is a hoop structure.

7. The bridge verticality detection device according to any one of claims 1 to 5, characterized in that: The end of the detection rod (4) is provided with a roller (6), and the roller (6) abuts on the surface of the pier.

8. The bridge verticality detection apparatus according to claim 7, characterized by: The oil bag (7) is arranged in the sliding cavity of the detection rod (4), the oil bag (7) is provided with a liquid outlet pipe (8), the pressure valve is arranged in the liquid outlet pipe (8), the pressure valve is adapted to allow fluid to flow out of the liquid outlet pipe (8) when the oil bag (7) is pressed, and the liquid outlet pipe (8) is opposite to the roller (6).

9. The bridge verticality detection apparatus according to claim 8, characterized by: The detection rod (4) is provided with a flange (10), and the two sides of the flange (10) are provided with the oil bag (7).

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