Highway bridge settlement detection device

Abstract

The utility model discloses a highway bridge settlement detection device, which relates to the technical field of highway detection devices and comprises a base, the base is an annular seat, a plurality of supporting rods distributed in a circumferential array are fixedly mounted at the bottom of the base, a movable seat is arranged at the upper end of the base, and a supporting shaft is rotatably mounted at the top of the movable seat. The upper end of the supporting shaft is fixedly provided with a laser range finder, the base is provided with an adjusting mechanism, the adjusting mechanism is meshed with the rack, and the adjusting mechanism is used for adjusting the height of the laser range finder. The laser range finder capable of adjusting the orientation can flexibly adjust the emission direction of the laser beam according to different measurement scenes and requirements. Therefore, the user can easily aim at the target for measurement without frequently moving the position or adjusting the equipment, so that the flexibility and convenience of measurement are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to highway detection device technical field especially relates to a highway bridge settlement detection device. BACKGROUND

[0002] With the continuous development of social economy and the continuous construction of modern city, large and small highway bridges are continuously constructed, and the roadbed is the important foundation of highway bridge construction, if the roadbed is not solid, the settlement of the roadbed can cause the pavement to crack and sag, thereby causing damage to the highway bridge, which can cause traffic accidents when vehicles pass through, thereby needing to detect the settlement of the bridge and needing to use a settlement detection device

[0003] For example, the existing patent with the publication number CN220932031U discloses a highway engineering bridge settlement detection device, which specifically discloses a detection block fixedly installed on the front face of a fixed plate, a light-shielding groove opened on the front face of the detection block, a second support rod slidingly installed in the first support rod, a spherical connector fixedly installed on the upper end of the second support rod, a spherical head connecting block rotatably sleeved on the spherical connector, an adjusting platform fixedly installed on the upper face of the spherical head connecting block, a laser generator fixedly installed on the upper end of the adjusting platform, an installation groove opened in the fixed plate and close to the positions of the two side edges, a scale embedded and installed in the light-shielding groove, and a fixed base fixedly installed on the lower end of the first support rod.

[0004] The existing highway engineering bridge settlement detection device measures by setting a laser range finder, but the existing laser ranging device cannot flexibly adjust the emission direction of the laser beam, and since the target object can be at different heights, angles or positions, the laser beam cannot be adjusted at this time, which greatly reduces the flexibility of the device, and therefore we propose a highway bridge settlement detection device. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a highway bridge settlement detection device, which solves the problems raised in the background art.

[0006] To achieve the above purpose, the utility model realizes the following technical scheme: a highway bridge settlement detection device, comprising: a base, the base is an annular seat, a plurality of support rods distributed in a circumferential array are fixedly installed on the bottom of the base, an activity seat is arranged on the upper end of the base, a support shaft is rotatably installed on the top of the activity seat, and a laser range finder is fixedly installed on the upper end of the support shaft.

[0007] The lower end of the supporting shaft penetrates into the movable seat, the lower end of the supporting shaft is fixedly installed with a first bevel gear, the movable seat is rotatably installed with a driving shaft, one end of the driving shaft is fixedly installed with a second bevel gear, the second bevel gear is engaged with the first bevel gear, the other end of the driving shaft is fixedly installed with a handle, the bottom of the movable seat is fixedly installed with a plurality of guide rods arranged in a circumferential array, the lower end of the guide rod penetrates through the base, the bottom of the movable seat is fixedly installed with a rack, the rack penetrates through the base, the base is provided with an adjusting mechanism, the adjusting mechanism is engaged with the rack, and the adjusting mechanism is used for adjusting the height of the laser range finder.

[0008] As a further technical scheme of the present application, the supporting rod is fixedly installed with an anti-skid foot pad at the bottom.

[0009] As a further technical scheme of the present application, the adjusting mechanism comprises a supporting plate fixedly connected to the base, a first rotating shaft rotatably installed on the supporting plate, and a driving wheel fixedly installed at one end of the first rotating shaft and engaged with the rack.

[0010] As a further technical scheme of the present application, the base is provided with and fixedly installed with a protective cover, a second rotating shaft rotatably installed on the protective cover, the second rotating shaft penetrating through the protective cover at one end, and a third bevel gear fixedly installed at the opposite end of the first rotating shaft and the second rotating shaft.

[0011] As a further technical scheme of the present application, the protective cover is provided with a worm gear, the worm gear is fixedly connected to the other end of the second rotating shaft, a worm rotatably installed in the protective cover, the worm engaged with the worm gear, and the transmission between the worm and the worm gear having self-locking property.

[0012] As a further technical scheme of the present application, the protective cover is rotatably installed with a rotating disc, and the rotating shaft of the rotating disc is fixedly connected with the worm.

[0013] The present application provides a highway bridge settlement detection device, which has the following advantages compared with the prior art

[0014] Advantages:

[0015] 1. The highway bridge settlement detection device can adjust the orientation of the laser range finder. The adjustable laser range finder can flexibly adjust the emission direction of the laser beam according to different measurement scenes and requirements. This means that users can easily aim at the target for measurement without frequent movement or adjustment of the device itself, thereby greatly improving the flexibility and convenience of measurement.

[0016] 2、The height of the laser range finder of the road bridge settlement detection device can be adjusted to easily cope with different height measurement requirements. Whether measuring low objects on the ground or measuring long-distance targets at high altitudes, users can adjust the height of the instrument to ensure that the laser beam is in the best measurement position. This flexibility greatly improves the accuracy and efficiency of measurement. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a road bridge settlement detection device.

[0018] Figure 2 It is a side view of a road bridge settlement detection device.

[0019] Figure 3 It is a schematic diagram of the internal structure of the protective cover of a road bridge settlement detection device Figure 1 .

[0020] Figure 4 It is a schematic diagram of the internal structure of the protective cover of a road bridge settlement detection device Figure 2 .

[0021] In the figure: base 1, support rod 2, movable seat 3, support shaft 4, laser range finder 5, first bevel gear 6, drive shaft 7, second bevel gear 8, handle 9, guide rod 10, rack 11, support plate 12, first rotating shaft 13, driving wheel 14, second rotating shaft 15, third bevel gear 16, protective cover 17, worm gear 18, worm 19, turntable 20. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Please refer to Figures 1-4 , the present application provides a road bridge settlement detection device technical scheme: a road bridge settlement detection device, comprising: base 1, the base 1 is annular seat, a plurality of support rods 2 distributed in a circular array are fixedly installed on the bottom of the base 1, the movable seat 3 is arranged on the upper end of the base 1, the support shaft 4 is rotatably installed on the top of the movable seat 3, and the laser range finder 5 is fixedly installed on the upper end of the support shaft 4.

[0024] The lower end of the support shaft 4 penetrates into the movable seat 3, and the lower end of the support shaft 4 is fixedly installed with a first bevel gear 6. The movable seat 3 is rotatably installed with a driving shaft 7, and one end of the driving shaft 7 is fixedly installed with a second bevel gear 8. The second bevel gear 8 is engaged with the first bevel gear 6. The other end of the driving shaft 7 is fixedly installed with a handle 9. The bottom of the movable seat 3 is fixedly installed with a plurality of guide rods 10 arranged in a circular array. The lower end of the guide rod 10 penetrates through the base 1. The bottom of the movable seat 3 is fixedly installed with a rack 11 at the center, and the rack 11 penetrates through the base 1. The base 1 is provided with an adjusting mechanism which is engaged with the rack 11. The adjusting mechanism is used to adjust the height of the laser range finder 5. The bottom of the support rod 2 is fixedly installed with an anti-skid foot pad which can play an anti-skid role.

[0025] By rotating the handle 9 to drive the driving shaft 7 to rotate, the driving shaft 7 drives the support shaft 4 to rotate through the transmission action of the second bevel gear 8 and the first bevel gear 6, so as to drive the laser range finder 5 to rotate around the support shaft 4, thereby adjusting the orientation of the laser range finder 5. The laser range finder 5 with adjustable orientation can flexibly adjust the emission direction of the laser beam according to different measurement scenes and needs. This means that the user can easily aim at the target for measurement without frequent moving position or adjusting the equipment itself, thereby greatly improving the flexibility and convenience of measurement.

[0026] The adjusting mechanism includes a support plate 12 fixedly connected to the base 1, and a first rotating shaft 13 rotatably installed on the support plate 12. One end of the first rotating shaft 13 is fixedly installed with a driving wheel 14 which is engaged with the rack 11. The base 1 is externally provided with and fixedly installed with a protective cover 17. A second rotating shaft 15 is rotatably installed on the protective cover 17. One end of the second rotating shaft 15 penetrates through the protective cover 17. The opposite end of the second rotating shaft 15 is fixedly installed with a third bevel gear 16. The two third bevel gears 16 are engaged. The protective cover 17 is internally provided with a worm gear 18 which is fixedly connected to the other end of the second rotating shaft 15. The protective cover 17 is internally rotatably installed with a worm shaft 19 which is engaged with the worm gear 18 and has self-locking transmission therebetween. The protective cover 17 is externally rotatably installed with a rotating disc 20, and the rotating shaft of the rotating disc 20 is fixedly connected to the worm shaft 19.

[0027] The rotation of the rotating disc 20 drives the rotation of the worm 19, the rotation of the worm 19 drives the rotation of the worm wheel 18, the worm wheel 18 and the second rotating shaft 15 rotate synchronously, the second rotating shaft 15 drives the rotation of the first rotating shaft 13 through the transmission of the two third bevel gears 16, the first rotating shaft 13 and the driving wheel 14 rotate, the driving wheel 14 drives the up-down movement of the rack 11, so that the rack 11 and the movable seat 3 move synchronously, the laser range finder 5 on the movable seat 3 can move up and down, and since the transmission between the worm 19 and the worm wheel 18 has self-locking property, the height of the laser range finder 5 can be kept fixed after adjustment. The adjustable height of the laser range finder 5 can easily cope with the measurement requirements of different heights. Whether it is to measure low objects on the ground or to measure long-distance targets at a high place, the user can adjust the height of the instrument to ensure that the laser beam is in the best measurement position. This flexibility greatly improves the accuracy and efficiency of measurement.

[0028] The working principle of the utility model is:

[0029] The reflective sheet is installed on the monitoring point of the bridge, the laser range finder 5 and the total station instrument are installed at appropriate positions, and the laser range finder 5 can accurately read the observation distance of the reflective sheet, and the total station instrument can accurately measure the initial inclination angles of the laser and the reflective sheet with the horizontal plane;

[0030] The device is erected at the preset position, the observation distance between the laser range finder 5 and the reflective sheet is measured by the laser range finder 5 in the device, the initial inclination angles of the laser of the laser range finder 5 and the horizontal plane and the initial inclination angles of the reflective sheet and the horizontal plane are measured by the total station instrument, the reflective sheet is installed on the monitoring point of the bridge and is used for reflecting the laser beam emitted by the laser range finder 5;

[0031] Specifically, the initial inclination angle alpha of the laser of the laser range finder with the horizontal plane is measured by using the total station instrument, the initial inclination angle beta of the reflective sheet with the horizontal plane is measured by using the total station instrument, and the initial observation distance read by the laser range finder is recorded;

[0032] Then, the settlement monitoring is carried out, after a preset time interval, the observation distance of the reflective sheet is read again by using the laser range finder. The change amount delta L of the observation distance is calculated;

[0033] The settlement amount is calculated, the preliminary settlement amount d is calculated according to the trigonometric function relationship of the change amount delta L of the observation distance, the initial inclination angle alpha of the laser range finder with the horizontal plane and the initial inclination angle beta of the reflective sheet with the horizontal plane, and the preliminary settlement amount d is corrected according to the deflection of the plane where the laser and the reflective sheet are located, to obtain the corrected settlement amount d'.

[0034] The above only is the preferred embodiment of the utility model, it should be pointed out, for ordinary skilled person in the art, without departing from the principle of the utility model, can make a number of improvements and refinements, these improvements and refinements also should be considered the protection scope of the utility model.The structure, device and operating method not specifically described and explained in the utility model, if no special description and limitation, all according to the conventional means of the art implementation.

Claims

1. A highway bridge settlement detection device, characterized in that, include: The base (1) is an annular seat. Multiple support rods (2) arranged in a circular array are fixedly installed at the bottom of the base (1). A movable seat (3) is provided at the upper end of the base (1). A support shaft (4) is rotatably installed on the top of the movable seat (3). A laser rangefinder (5) is fixedly installed at the upper end of the support shaft (4). The lower end of the support shaft (4) passes into the movable seat (3). A first bevel gear (6) is fixedly installed at the lower end of the support shaft (4). A drive shaft (7) is rotatably installed on the movable seat (3). A second bevel gear (8) is fixedly installed at one end of the drive shaft (7). The second bevel gear (8) meshes with the first bevel gear (6). A handle (9) is fixedly installed at the other end of the drive shaft (7). A plurality of guide rods (10) arranged in a circular array are fixedly installed at the bottom of the movable seat (3). The lower end of the guide rod (10) passes through the base (1). A rack (11) is fixedly installed at the center of the bottom of the movable seat (3). The rack (11) passes through the base (1). An adjustment mechanism is provided on the base (1). The adjustment mechanism meshes with the rack (11). The adjustment mechanism is used to adjust the height of the laser rangefinder (5).

2. The highway bridge settlement detection device according to claim 1, characterized in that, The bottom of each support rod (2) is fixedly equipped with anti-slip pads.

3. The highway bridge settlement detection device according to claim 1, characterized in that, The adjustment mechanism includes a support plate (12) fixedly connected to the base (1), a first rotating shaft (13) is rotatably mounted on the support plate (12), a drive wheel (14) is fixedly mounted at one end of the first rotating shaft (13), and the drive wheel (14) meshes with the rack (11).

4. The highway bridge settlement detection device according to claim 3, characterized in that, The base (1) is fitted with and fixed with a protective cover (17). A second rotating shaft (15) is rotatably mounted on the protective cover (17). One end of the second rotating shaft (15) passes through the protective cover (17). A third bevel gear (16) is fixed to the opposite end of the second rotating shaft (15) and the first rotating shaft (13). The two third bevel gears (16) mesh.

5. A highway bridge settlement detection device according to claim 4, characterized in that, The protective cover (17) is provided with a worm gear (18), which is fixedly connected to the other end of the second rotating shaft (15). A worm (19) is rotatably installed inside the protective cover (17). The worm (19) meshes with the worm gear (18), and the transmission between the two has self-locking properties.

6. The highway bridge settlement detection device according to claim 5, characterized in that, A turntable (20) is rotatably mounted outside the protective cover (17), and the rotating shaft of the turntable (20) is fixedly connected to the worm gear (19).

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