Road and bridge expansion joint detection device

Abstract

The utility model discloses a road and bridge expansion joint detection device, which comprises a distance measuring assembly and a driving assembly, and is characterized in that the distance measuring assembly comprises a sliding block, a graduated scale, a measuring plate, a lifting sliding seat, a collision sensor, a distance measuring sensor, a collision block, a second lead screw and a stepping motor, and the distance measuring assembly further comprises a connecting rod, a translation sliding seat, a moving rod and an electronic level meter; the driving assembly comprises a second support, a sliding rail, a first lead screw and a penetrating type stepping motor. The detection device further comprises a first support, a roller, a push rod, a power source and a control panel. The device is fast in detection speed, convenient and fast, accurate in result and capable of reducing errors caused by human factors.

Description

Technical Field

[0001] The utility model relates to the technical field of highway bridge detection, in particular to a road bridge expansion joint detection device. Background Art

[0002] In order to meet the requirements of bridge deck deformation, expansion joints are usually set between the two beam ends, between the beam ends and the abutments, or at the hinged position of the bridge. The expansion joints are required to be able to freely expand and contract in both directions parallel and perpendicular to the bridge axis, and to be firm and reliable. Highway bridge expansion devices can be divided into three types according to their expansion structures: modular expansion devices, comb plate expansion devices, and seamless expansion devices. Expansion joint detection usually includes measuring the distance between expansion joints and checking whether they are in a horizontal state. The current detection method is mostly for workers to use rulers or spirit levels for detection, which may result in human errors. Therefore, a road bridge expansion joint detection device is proposed to solve the factors of human errors and improve the detection speed.

[0003] The modular bridge expansion device is an expansion device composed of longitudinal beams, cross beams, displacement control boxes, rubber sealing strips and other components. After searching, the Chinese patent application number 202321021182.1 discloses a bridge expansion joint detection device, including a guide rail, a push rod, a moving wheel and a ruler. The front side of the guide rail is fixed with a push rod, and moving wheels are installed on both sides of the guide rail. The left side of the guide rail is fixed with a ruler. The inside of the guide rail is slidably provided with a ruler for detecting the expansion joint of the bridge, and the inside of the guide rail is evenly spaced with scale grooves. The detection device in the above-mentioned document has the following shortcomings: the height of the ruler is short, and it may not penetrate into the expansion joint, resulting in insufficient measurement accuracy. The manual method of reading data may cause errors due to human factors. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a road and bridge expansion joint detection device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A road and bridge expansion joint detection device includes a distance measuring component and a driving component. The distance measuring component includes a slider, a scale, a measuring plate, and a lifting slide. The slider has two parts, one side of the slider is provided with a hole, and a ball nut is provided in the hole. A baffle is provided above one side of the slider, and a mounting hole is provided on the baffle. The scale is installed in the mounting hole. The measuring plate is installed under the slider and the lifting slide by bolts, and the measuring plate on the slider is provided with a first mounting hole and a second mounting hole.

[0007] As a further solution of the utility model: the ranging component also includes a collision sensor, a ranging sensor, and a collision block. There are two collision sensors, one of which is installed in a first mounting hole on the inner side of the measuring plate. The collision block is installed in the first mounting hole, close to the outer side of the measuring plate. A spring is arranged between the collision block and the collision sensor. The other collision sensor is installed below the lifting slide. The ranging sensor is installed in the second mounting hole on the measuring plate. The sensor head of the ranging sensor faces the inner side of the measuring plate. The detection device also includes a control module. The collision sensor, the ranging sensor and the control module are electrically connected.

[0008] As a further solution of the utility model: the distance measuring component also includes a second screw and a stepper motor. The second screw is connected to the output end of the stepper motor through a coupling. The second screw is installed in the hole of the slider and is connected to another slider through a rolling bearing. The stepper motor is electrically connected to the control module.

[0009] As a further solution of the utility model: the ranging assembly also includes a connecting rod, a translation slide, a moving rod, and an electronic level. A protruding structure is provided in front of the slider and the lifting slide, a hole is provided on the side of the protruding structure, the connecting rod is provided in the hole, and holes are provided on the side and above and below the translation slide. The translation slide is installed on the connecting rod through the hole on the side, the moving rod is installed in the vertical hole of the translation slide, and the electronic level is installed under the two moving rods by bolts.

[0010] As a further solution of the utility model: the driving assembly includes a bracket two, a slide rail, a lead screw one, and a through-type stepping motor. The inner side of the lower part of the bracket two is provided with an installation groove, and a rolling bearing is provided in the installation groove. Both ends of the lead screw one are installed in the rolling bearings. The through-type stepping motor is installed on the lead screw one, and the through-type stepping motor is electrically connected to the control module. The lifting slide is connected to the through-type stepping motor by bolts. An axle seat is provided on the lead screw one, and the stepping motor is connected to the axle seat by bolts.

[0011] As a further solution of the utility model: the detection device also includes a bracket one, a roller, and a push rod. The drive assembly is installed on the inner sides of both sides of the bracket one. Two support rods are provided on the front lower side of the bracket one. Mounting holes are provided at the rear positions of both sides of the bracket one. The connecting rod is installed in the mounting holes. The rollers are connected and installed on both sides of the bracket one through the connecting rod. The push rod is welded to the rear of the bracket one, and a sponge is provided above the push rod.

[0012] As a further solution of the utility model: the detection device also includes a power supply and a control panel, the power supply is installed above the bracket 2, the control panel is installed above the power supply, and the driving component and the distance measuring component are connected to the control panel through wires.

[0013] The beneficial effects of the utility model are:

[0014] 1. The distance measuring sensor detects the distance of the expansion joint and sends information to the control module in the form of electrical signals. The operator can also observe the distance through the ruler, and the detection speed is fast.

[0015] 2. When the electronic level is in contact with the ground, it can detect whether the expansion joint on the road bridge is in a horizontal state. When measuring the distance of the expansion joint, the levelness can be detected at the same time, saving time.

[0016] 3. The driving component controls the distance measuring component to descend into the expansion joint. When the collision sensor on the lifting slide collides with the ground, the control module controls the through-type stepper motor to stop working. After the measurement is completed, the through-type stepper motor controls the measuring component to rise. The driving component can reduce the workload and speed up the measurement.

[0017] 4. The detection device can be pushed to facilitate the inspection of expansion joints in multiple locations on roads and bridges, which is convenient and quick.

[0018] 5. The driving component and the distance measuring component can be controlled through the control panel. At the same time, the detection results of the distance measuring sensor and the electronic level can be checked. There is no need to measure and record data manually, which reduces errors caused by human factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of a road and bridge expansion joint detection device proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of a road and bridge expansion joint detection device proposed by the utility model from a top view;

[0021] Figure 3 This is a structural schematic diagram of a driving assembly of a road and bridge expansion joint detection device proposed by the utility model;

[0022] Figure 4 This is a structural schematic diagram of a distance measuring component of a road and bridge expansion joint detection device proposed by the utility model;

[0023] Figure 5 The present invention is a schematic structural diagram of a partial cross-section of a road and bridge expansion joint detection device proposed by the present invention.

[0024] In the figure: 1-bracket one, 2-connecting rod, 3-bracket two, 4-power supply, 5-control panel, 6-push rod, 7-roller, 8-slide rail, 9-screw one, 10-through stepper motor, 11-measuring plate, 12-scale, 13-screw two, 14-slider, 15-stepper motor, 16-moving rod, 17-electronic level, 18-collision sensor, 19-distance sensor, 20-collision block, 21-lifting slide, 22-translation slide. DETAILED DESCRIPTION

[0025] The technical solution of the utility model is further described in detail below in conjunction with specific implementation methods.

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] A road bridge expansion joint detection device, such as Figure 3 As shown, it includes a distance measuring component and a driving component. The distance measuring component includes a slider 14, a scale 12, a measuring plate 11, and a lifting slide 21. The slider 14 has two parts. A hole is provided on one side of the slider 14, and a ball nut is provided in the hole. A baffle is provided above one side of the slider 14, and a mounting hole is provided on the baffle. The scale is installed in the mounting hole. The measuring plate 11 is installed under the slider 14 and the lifting slide 21 by bolts. The measuring plate 11 on the slider 14 is provided with a first mounting hole and a second mounting hole.

[0028] like Figure 5 As shown, the distance measuring component also includes a collision sensor 18, a distance measuring sensor 19, and a collision block 20. There are two collision sensors 18, one of which is installed in a first mounting hole on the inner side of the measuring plate 11. The collision block 20 is installed in the first mounting hole, close to the outer side of the measuring plate 11. A spring is arranged between the collision block 20 and the collision sensor 18. Another collision sensor 18 is installed below the lifting slide 21. The distance measuring sensor 19 is installed in a second mounting hole on the measuring plate 11. The sensor head of the distance measuring sensor 19 faces the inner side of the measuring plate 11. The detection device also includes a control module. The collision sensor 18 and the distance measuring sensor 19 are electrically connected to the control module.

[0029] like Figure 3As shown, the distance measuring component also includes a lead screw 13 and a stepper motor 15. The lead screw 13 is connected to the output end of the stepper motor 15 through a coupling. The lead screw 13 is installed in the hole of the slider 14 and is connected to the lifting slider 21 through a rolling bearing. The stepper motor 15 is electrically connected to the control module.

[0030] After the detection device is turned on, the distance measuring component starts to work, and the slider 14 moves driven by the stepper motor 15. When the collision block on the measuring plate 11 connected to the slider 14 collides with the collision sensor 18, the collision sensor 18 sends an electrical signal to the control module, and the control module controls the stepper motor 15 to stop running. Then the distance measuring sensor 19 detects the distance of the expansion joint and sends information to the control module in the form of an electrical signal. The operator can also observe the distance through a ruler, and the detection speed is fast.

[0031] like Figure 4 As shown, the distance measuring assembly also includes a connecting rod 2, a translation slide 22, a moving rod 16, and an electronic level 17. A protruding structure is provided in front of the slider 14 and the lifting slide 21, and a hole is provided on the side of the protruding structure. The connecting rod 2 is provided in the hole, and holes are provided on the side and above and below the translation slide 22. The translation slide 22 is installed on the connecting rod 2 through the side hole, and the moving rod 16 is installed in the vertical hole of the translation slide 22. The electronic level 17 is installed below the two moving rods 16 by bolts.

[0032] When the electronic level 17 is in contact with the ground, it can detect whether the expansion joint on the road bridge is in a horizontal state. When measuring the distance of the expansion joint, the horizontality can be detected at the same time, saving time.

[0033] like Figure 3 As shown, the driving assembly includes a bracket 23, a slide rail 8, a lead screw 19, and a through-type stepper motor 10. The inner side of the lower part of the bracket 23 is provided with a mounting groove, and a rolling bearing is provided in the mounting groove. Both ends of the lead screw 19 are installed in the rolling bearings. The through-type stepper motor 10 is installed on the lead screw 19, and the through-type stepper motor 10 is electrically connected to the control module. The lifting slide 21 is connected to the through-type stepper motor 10 by bolts. A shaft seat is provided on the lead screw 19, and the stepper motor 15 is connected to the shaft seat by bolts.

[0034] In this case, the operator places the measuring plate 11 on one side of the lifting slide 21 against one side of the expansion joint, starts the driving component through the control module, and the driving component controls the ranging component to descend into the expansion joint. When the collision sensor 18 on the lifting slide 21 collides with the ground, the control module controls the through-type stepper motor 10 to stop working. After the measurement is completed, the through-type stepper motor 10 controls the measuring component to rise. The driving component can reduce the workload and speed up the measurement.

[0035] like Figure 1 , Figure 2 As shown, the detection device also includes a bracket 1, a roller 7, and a push rod 6. The driving assembly is installed on the inner sides of both sides of the bracket 1. Two support rods are provided on the front lower side of the bracket 1. Mounting holes are provided at the rear positions of both sides of the bracket 1. The connecting rod 2 is installed in the mounting holes. The roller 7 is connected and installed on both sides of the bracket 1 through the connecting rod 2. The push rod 6 is welded to the rear of the bracket 1, and a sponge is provided above the push rod 6.

[0036] The detection device can be pushed by the push rod 6 and the roller 7, so as to check the expansion joints at multiple locations on the road and bridge conveniently and quickly.

[0037] like Figure 1 As shown, the detection device also includes a power supply 4 and a control panel 5. The power supply 4 is installed above the bracket 2 3, and the control panel 5 is installed above the power supply 4. The driving component and the distance measuring component are connected to the control panel 5 through wires.

[0038] The whole detection device is powered by the power supply 4, and the driving component and the distance measuring component can be controlled by the control panel 5. At the same time, the detection results of the distance measuring sensor 19 and the electronic level 17 can be checked, without manual measurement and recording of data, thus reducing errors caused by human factors.

[0039] Working principle: The operator pushes the detection device onto the expansion joint, aligns the measuring plate 11 under the lifting slide 21 with one side of the expansion joint, and then controls the driving component to lower the distance measuring component through the control panel 5. The electronic level falls on the expansion joint under the action of gravity to detect whether the expansion joint is in a horizontal position. When the collision sensor 18 under the lifting slide touches the ground, the control module controls the through-type stepper motor 10 to stop running, and then controls the stepper motor 15 to run, and moves the measuring plate on the slider 14 to the expansion joint on the other side. When the collision sensor detection on the measuring plate 11 is triggered, the stepper motor 15 stops running, and the distance measuring sensor 19 starts to measure the distance. The distance measuring sensor 19 and the electronic level 17 transmit the detection results to the control panel 5, and the control panel 5 displays the data to the operator. After multiple measurements, the operator retracts the distance measuring component and the driving component through the control panel 5, moves to the next measuring point, and measures again.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A road and bridge expansion joint detection device, comprising a distance measuring component and a driving component, characterized in that: The distance measuring assembly comprises a slider (14), a scale (12), a measuring plate (11), and a lifting slider (21). The slider (14) has two parts. A hole is provided on one side of the slider (14), and a ball nut is provided in the hole. A baffle is provided above one side of the slider (14), and a mounting hole is provided on the baffle. The scale is installed in the mounting hole. The measuring plate (11) is installed below the slider (14) and the lifting slider (21) by bolts. The measuring plate (11) on the slider (14) is provided with a first mounting hole and a second mounting hole.

2. A road and bridge expansion joint detection device according to claim 1, characterized in that: The distance measuring assembly further comprises a collision sensor (18), a distance measuring sensor (19), and a collision block (20). There are two collision sensors (18), one of which is mounted in a first mounting hole on the inner side of the measuring plate (11). The collision block (20) is mounted in the first mounting hole, close to the outer side of the measuring plate (11). A spring is arranged between the collision block (20) and the collision sensor (18). The other collision sensor (18) is mounted below the lifting slide (21). The distance measuring sensor (19) is mounted in a second mounting hole on the measuring plate (11). The sensor head of the distance measuring sensor (19) faces the inner side of the measuring plate (11). The detection device further comprises a control module. The collision sensor (18) and the distance measuring sensor (19) are electrically connected to the control module.

3. A road and bridge expansion joint detection device according to claim 2, characterized in that: The distance measuring component also includes a second lead screw (13) and a stepping motor (15), wherein the second lead screw (13) is connected to the output end of the stepping motor (15) via a coupling, the second lead screw (13) is installed in a hole of a slider (14), and is connected to another slider (14) via a rolling bearing, and the stepping motor (15) is electrically connected to a control module.

4. A road and bridge expansion joint detection device according to claim 3, characterized in that: The distance measuring assembly also includes a connecting rod (2), a translation slide (22), a moving rod (16), and an electronic level (17); a protruding structure is arranged in front of the slider (14) and the lifting slide (21); a hole is arranged on the side of the protruding structure; the connecting rod (2) is arranged in the hole; holes are arranged on the side and above and below the translation slide (22); the translation slide (22) is installed on the connecting rod (2) through the hole on the side; the moving rod (16) is installed in the vertical hole of the translation slide (22); and the electronic level (17) is installed below the two moving rods (16) through bolts.

5. A road and bridge expansion joint detection device according to claim 1, characterized in that: The driving assembly comprises a bracket 2 (3), a slide rail (8), a lead screw 1 (9), and a through-type stepping motor (10). The inner side of the lower part of the bracket 2 (3) is provided with a mounting groove, and a rolling bearing is provided in the mounting groove. Both ends of the lead screw 1 (9) are installed in the rolling bearings. The through-type stepping motor (10) is installed on the lead screw 1 (9). The through-type stepping motor (10) is electrically connected to the control module. The lifting slide (21) is connected to the through-type stepping motor (10) by bolts. The lead screw 1 (9) is provided with a shaft seat, and the stepping motor (15) is connected to the shaft seat by bolts.

6. A road and bridge expansion joint detection device according to claim 1, characterized in that: The detection device also includes a bracket (1), a roller (7), and a push rod (6). The driving assembly is installed on the inner sides of both sides of the bracket (1). Two support rods are provided on the front lower side of the bracket (1). Mounting holes are provided at the rear positions of both sides of the bracket (1). The connecting rod (2) is installed in the mounting holes. The roller (7) is connected and installed on both sides of the bracket (1) through the connecting rod (2). The push rod (6) is welded to the rear of the bracket (1), and a sponge is provided above the push rod (6).

7. A road and bridge expansion joint detection device according to claim 1, characterized in that: The detection device further comprises a power supply (4) and a control panel (5); the power supply (4) is mounted above the second bracket (3); the control panel (5) is mounted above the power supply (4); and the driving component and the distance measuring component are connected to the control panel (5) via electric wires.

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