Omnibearing bridge deflection testing device

Abstract

The invention belongs to the technical field of testing devices, and particularly relates to an omni-directional bridge deflection testing device which comprises a rotating frame, a platform is arranged at the bottom of the rotating frame, a rotation adjusting mechanism is arranged between the rotating frame and the platform, the rotating frame is U-shaped, and connecting plates are arranged at the two ends of the inner wall of the rotating frame. A position adjusting mechanism is arranged between the connecting plate and the rotating frame, and a transverse plate is arranged between the two ends of the connecting plate. According to the bridge bottom investigation device, a surrounding inclination adjusting mechanism is arranged at the bottom of the bearing plate, a universal ball between a fixed rod and a movable rod can be used for enabling the bridge bottom investigation device body to have the omnibearing inclination adjusting capacity, the test adjustable capacity is further improved, and the platform can be stably supported through a stable supporting mechanism arranged on the outer wall of the platform; by arranging the supporting adjusting mechanism, the supporting position can be adjusted according to the terrain, and the stability of the bridge bottom investigation device body during measurement is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of testing devices, and in particular to an omnidirectional bridge deflection testing device. Background Art

[0002] Bridges are an important part of the transportation network. It is extremely important to ensure the safety and reliability of bridge structures. Among the many parameters of bridges, the deflection of bridges is the main parameter for evaluating the safety status of bridges. It directly reflects the vertical overall stiffness, bearing capacity and ability to withstand dynamic loads such as earthquakes of the bridge structure. The impact coefficient of the load and the distribution state of the internal force of the structure can be obtained from the dynamic numerical analysis of the deflection, and the weak parts of the bridge and the integrity of the structure can be judged. Accurate measurement of the static and dynamic deflections of bridges is required in bridge verification, dangerous bridge reconstruction and new bridge acceptance.

[0003] The existing detectors require special storage equipment for protection, which is cumbersome to operate, and the equipment needs to be rotated as a whole when it is rotated, which makes it inconvenient to rotate; the deflection detector cannot change its height during use, resulting in the inability to adjust the equipment according to actual conditions, and the deflection detector is not convenient to move, which makes it more laborious to use; when the deflection detector is used under the bridge, manual supervision is required on site, which consumes manpower and material resources, and the shaking of the bottom of the deflection detector and the uneven settlement of the bottom will also affect the test results of the bridge deflection; the current deflection detector has a limited test range, and it is extremely inconvenient to adjust when measuring at the bottom of the bridge, which increases the randomness of the bridge deflection test and reduces the accuracy. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to propose an all-round bridge deflection testing device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A omnidirectional bridge deflection testing device comprises a rotating frame, a platform is arranged at the bottom of the rotating frame, a rotating adjustment mechanism is arranged between the rotating frame and the platform, the rotating frame is arranged in a U-shape, connecting plates are arranged at both ends of the inner wall of the rotating frame, a position adjustment mechanism is arranged between the connecting plate and the rotating frame, a cross plate is arranged between the two ends of the connecting plate, a movable connecting mechanism is arranged between the cross plate and the connecting plate, a fixing rod is fixedly connected to the top of the cross plate, a bearing plate is arranged at the top of the fixing rod, a bridge bottom survey device body is arranged at the top of the bearing plate, a lateral adjustment mechanism is arranged between the bridge bottom survey device body and the bearing plate, a surrounding tilt adjustment mechanism is arranged at the bottom of the bearing plate, a movable adjustment mechanism is arranged at the bottom of the platform, a plurality of rotating plates are arranged on the outer wall of the platform, a support adjustment mechanism is arranged between the rotating plate and the platform, and a stable support mechanism is arranged on the outer wall of the rotating plate.

[0006] Preferably, the rotation adjustment mechanism includes a first adjustment plate and a first motor, the first motor is fixedly connected to the bottom outer wall of the platform, the top of the first motor is fixedly connected to the rotating frame, the first adjustment plate is fixedly connected to the top outer wall of the platform, the first adjustment plate is arranged in a ring shape, the inner wall of the first adjustment plate is slidably connected with a first surround block, and the top of the first surround block is fixedly connected to the rotating frame.

[0007] Preferably, the position adjustment mechanism includes a second slider and an electric push rod, second sliding grooves are provided at both ends of the inner wall of the rotating frame, the second slider is slidably connected to the second sliding groove, the second slider is threadedly connected to a second threaded screw, the top of the second threaded screw is fixedly connected to a second motor, the second motor is fixedly connected to the rotating frame, the second slider is rotatably connected to the connecting plate, a movable groove is provided at the bottom of the connecting plate, movable blocks are provided on both sides of the inner wall of the movable groove, the bottom of the movable block is rotatably connected to the electric push rod, the bottom of the electric push rod is fixedly connected to a bottom plate, and the bottom plate and the second slider are fixedly connected.

[0008] Preferably, the movable connection mechanism includes a second spring and a second damper, a second bracket is provided at one end of the connecting plate, the second bracket is rotatably connected to the transverse plate, and both ends of the second spring and the second damper are fixedly connected to the connecting plate and the second bracket respectively.

[0009] Preferably, the lateral adjustment mechanism includes a third motor and a third slider, a third slide groove is opened on the top of the supporting plate, the third slider and the third slide groove are slidably connected, the top of the third slider is fixedly connected to the body of the bridge bottom survey device, the third slider is threadedly connected with a third threaded screw, one end of the third threaded screw is fixedly connected to the third motor, and the third motor is fixedly connected to the supporting plate.

[0010] Preferably, the surround tilt adjustment mechanism includes a driving gear and a driven gear, a fourth motor is fixedly connected to the top of the cross plate, the top of the fourth motor is fixedly connected to the driving gear, the driving gear and the driven gear are transmission-connected, a bearing is fixedly connected to the outer wall of the fixed rod, the bearing and the driven gear are fixedly connected, a universal ball is slidably connected to the top of the fixed rod, a movable rod is slidably connected to the top of the universal ball, the top of the movable rod is fixedly connected to the supporting plate, the bottom of the supporting plate is fixedly connected to a second adjusting plate, the second adjusting plate is arranged in a ring shape, an annular groove is provided at the bottom of the second adjusting plate, an adjusting ball is arranged inside the annular groove, a second cylinder is fixedly connected to the bottom of the adjusting ball, and the bottom of the second cylinder is fixedly connected to the driven gear.

[0011] Preferably, a plurality of third springs are fixedly connected to the outer wall of the bearing plate, the other end of the third spring is fixedly connected to a connecting rod, and the bottom of the connecting rod is fixedly connected to the fixing rod.

[0012] Preferably, the movable adjustment mechanism includes a support frame and a pulley, an annular groove is opened at the bottom of the platform, the support frame and the annular groove are slidably connected, the inner wall of the support frame is threaded with a first bolt, the inner wall of the support frame is fixedly connected to a fixing plate, the top of the fixing plate is fixedly connected to a first cylinder, the bottom of the first cylinder is fixedly connected to a control plate, the control plate is located at the bottom of the support frame, and the pulley is fixedly connected to both sides of the outer wall of the bottom of the control plate.

[0013] Preferably, the stable support mechanism includes a support foot and a support plate, a first sliding groove is opened on the outer wall of the rotating plate, a first sliding groove is slidably connected to the inner wall of the first sliding groove, the first sliding block is threadedly connected to the first threaded screw, the first sliding block is rotatably connected to the support foot, the support foot is fixedly connected to the movable plate, the outer wall of the movable plate is threadedly connected to the second bolt, the bottom of the support foot is rotatably connected to a connecting piece, the bottom of the connecting piece is fixedly connected to a layer plate, and a plurality of first springs and a first damper are fixedly connected between the layer plate and the support plate.

[0014] Preferably, the support adjustment mechanism includes a first bracket and a second surround block, the second surround block is slidably connected to the outer wall of the platform, the outer wall of the second surround block is fixedly connected to the first bracket, the first bracket is rotatably connected to the rotating plate, and the outer wall of the first bracket is threadedly connected with a third bolt.

[0015] The beneficial effects of the present invention are: 1. The bridge bottom survey device body on the top of the load-bearing plate can be used to perform a deflection test on the bridge bottom. The bridge bottom survey device body and the load-bearing plate can be provided with a lateral adjustment capability when measuring. The surrounding tilt adjustment mechanism at the bottom of the load-bearing plate can be used to make the bridge bottom survey device body have an all-round tilt adjustment capability by using a universal ball between a fixed rod and a movable rod, thereby further improving the test adjustable capability. The platform can be stably supported by providing a stable support mechanism on the outer wall of the platform, and the support position can be adjusted according to the terrain by providing a support adjustment mechanism, thereby ensuring the stability of the bridge bottom survey device body during measurement. 2. The first motor is set to drive the top rotating frame to rotate, so that the bridge bottom survey device body has the ability to rotate and adjust, and the first surrounding block at the bottom of the rotating frame is set to move in the first adjustment plate, so that the rotating frame has higher stability when rotating, and the second motor is set to drive the second threaded screw to rotate, so that the second slider threadedly connected with the second threaded screw can be driven to move along the second slide groove, and the second bracket and the cross plate are set to be rotatably connected, so that the height of the two ends of the cross plate can be adjusted left and right, and the adjustable ability of the bridge bottom survey device body test is further improved, and the electric push rod is set to push the movable block to move in the movable groove opened at the bottom of the connecting plate, so that the connecting plate can be driven to rotate, and finally the cross plate can be driven to adjust the front and rear angles, and the adjustable ability of the bridge bottom survey device body test is further improved; 3. The first bracket is slidably connected to the outer wall of the platform by the second surround block, and is fixed by the third bolt, so that the first bracket and the support leg have the ability to adjust the position, and the first slider threadedly connected to the first threaded screw can be driven to rise and fall by rotating the first threaded screw, and the support leg rotatably connected to the first slider can be limited by the movable plate and the second bolt, and the support leg and the bottom connecting piece are rotatably connected, so that the bottom support plate can be supported according to the terrain, and the first spring and the first damper between the layer plate and the support plate can enable the device to filter vibration, thereby ensuring that the bridge bottom survey device body has higher stability during measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of an all-round bridge deflection testing device proposed by the present invention; Figure 2 This is a schematic diagram of the bottom main structure of an all-round bridge deflection testing device proposed by the present invention; Figure 3 This is a schematic diagram of the main structure of the support mechanism of an all-round bridge deflection testing device proposed by the present invention; Figure 4 A schematic diagram of the main structure of a rotating frame of an all-round bridge deflection testing device proposed by the present invention; Figure 5 This is a schematic diagram of the enlarged structure of point A of an all-round bridge deflection testing device proposed by the present invention; Figure 6 A schematic diagram of the bottom structure of a rotating frame of an all-round bridge deflection testing device proposed by the present invention; Figure 7 This is a schematic diagram of the main structure of a surround tilt adjustment mechanism of an omnidirectional bridge deflection testing device proposed by the present invention.

[0017] In the attached drawings: 1, rotating frame; 2, first surrounding block; 3, first adjusting plate; 4, platform; 5, bridge bottom survey device body; 6, bearing plate; 7, annular groove; 8, support frame; 9, fixed plate; 10, first bolt; 11, first cylinder; 12, pulley; 13, control board; 14, first motor; 15, second surrounding block; 16, first threaded screw; 17, rotating plate; 18, first slide groove; 19, movable plate; 20, second bolt; 21, support foot; 22, connecting piece; 23, support plate; 24, first spring; 25, first damper; 26, layer plate; 27, first slider; 28, first bracket; 29, third bolt; 30, second Slide groove; 31, second motor; 32, second threaded screw; 33, second slider; 34, connecting plate; 35, second bracket; 36, cross plate; 37, second spring; 38, second damper; 39, third slide groove; 40, third threaded screw; 41, third slider; 42, third motor; 43, movable groove; 44, movable block; 45, electric push rod; 46, bottom plate; 47, second cylinder; 48, driving gear; 49, fourth motor; 50, driven gear; 51, fixed rod; 52 connecting rod; 53, third spring; 54, bearing; 55, universal ball; 56, movable rod; 57, second adjustment plate; 58, annular groove; 59, adjustment ball. DETAILED DESCRIPTION

[0018] 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 this patent, and cannot be understood as limiting this patent.

[0019] Reference Figure 1-7A omnidirectional bridge deflection testing device comprises a rotating frame 1, a platform 4 is arranged at the bottom of the rotating frame 1, a rotation adjustment mechanism is arranged between the rotating frame 1 and the platform 4, the rotating frame 1 is arranged in a U-shape, connecting plates 34 are arranged at both ends of the inner wall of the rotating frame 1, a position adjustment mechanism is arranged between the connecting plate 34 and the rotating frame 1, a transverse plate 36 is arranged between both ends of the connecting plate 34, a movable connection mechanism is arranged between the transverse plate 36 and the connecting plate 34, a fixing rod 51 is fixedly connected to the top of the transverse plate 36, a bearing plate 6 is arranged at the top of the fixing rod 51, a bridge bottom survey device body 5 is arranged at the top of the bearing plate 6, a lateral adjustment mechanism is arranged between the bridge bottom survey device body 5 and the bearing plate 6, a surrounding tilt adjustment mechanism is arranged at the bottom of the bearing plate 6, a moving adjustment mechanism is arranged at the bottom of the platform 4, a plurality of rotating plates 17 are arranged on the outer wall of the platform 4, and the rotating plates 17 and A support adjustment mechanism is provided between the platforms 4, and a stable support mechanism is provided on the outer wall of the rotating plate 17. The bridge bottom survey device body 5 on the top of the load-bearing plate 6 can be used to perform a deflection test on the bridge bottom. By providing a lateral adjustment mechanism between the bridge bottom survey device body 5 and the load-bearing plate 6, the bridge bottom survey device body 5 can have lateral adjustment capability during measurement. By providing a surrounding tilt adjustment mechanism at the bottom of the load-bearing plate 6, the universal ball 55 between the fixed rod 51 and the movable rod 56 can be used to enable the bridge bottom survey device body 5 to have all-round tilt adjustment capability, thereby further improving the test adjustable capability. By providing a stable support mechanism on the outer wall of the platform 4, the platform 4 can be stably supported, and by providing a support adjustment mechanism, the support position can be adjusted according to the terrain, thereby ensuring the stability of the bridge bottom survey device body 5 during measurement.

[0020] At the same time, the rotation adjustment mechanism includes a first adjustment plate 3 and a first motor 14, the first motor 14 is fixedly connected to the outer wall of the bottom of the platform 4, the top of the first motor 14 is fixedly connected to the rotating frame 1, the first adjustment plate 3 is fixedly connected to the outer wall of the top of the platform 4, the first adjustment plate 3 is arranged in a ring shape, the inner wall of the first adjustment plate 3 is slidably connected with the first surround block 2, the top of the first surround block 2 is fixedly connected to the rotating frame 1, the position adjustment mechanism includes a second slider 33 and an electric push rod 45, the inner wall of the rotating frame 1 is provided with a second slide groove 30 at both ends, the second slider 33 is slidably connected with the second slide groove 30, The second slider 33 is threadedly connected to the second threaded screw rod 32, the second motor 31 is fixedly connected to the top of the second threaded screw rod 32, the second motor 31 is fixedly connected to the rotating frame 1, the second slider 33 is rotatably connected to the connecting plate 34, a movable groove 43 is provided at the bottom of the connecting plate 34, movable blocks 44 are provided on both sides of the inner wall of the movable groove 43, the bottom of the movable block 44 is rotatably connected to the electric push rod 45, the bottom of the electric push rod 45 is fixedly connected to the bottom plate 46, the bottom plate 46 is fixedly connected to the second slider 33, the movable connection mechanism includes a second spring 37 and a second damper 38, the connecting plate 3 A second bracket 35 is provided at one end of the bridge bottom survey device 5, and the second bracket 35 is rotatably connected to the cross plate 36. The second spring 37 and the second damper 38 are respectively fixedly connected to the connecting plate 34 and the second bracket 35 at both ends. The first motor 14 is provided to drive the rotating frame 1 at the top to rotate, so that the bridge bottom survey device body 5 has the ability to rotate and adjust. The first surrounding block 2 at the bottom of the rotating frame 1 is arranged to move in the first adjustment plate 3, so that the rotating frame 1 has higher stability when rotating. The second motor 31 is provided to drive the second threaded screw 32 to rotate, so that the second motor 31 can drive the second threaded screw 32 to rotate. The second slider 33 threadedly connected to the threaded screw 32 moves along the second slide groove 30. By setting the second bracket 35 and the cross plate 36 for rotational connection, the two ends of the cross plate 36 can be adjusted in height to the left and right, further improving the adjustable ability of the bridge bottom survey device body 5 test. By setting the electric push rod 45, the movable block 44 is pushed to move in the movable groove 43 opened at the bottom of the connecting plate 34, so that the connecting plate 34 can be driven to rotate, and finally the cross plate 36 can be driven to adjust the front and rear angles, further improving the adjustable ability of the bridge bottom survey device body 5 test.

[0021] The lateral adjustment mechanism includes a third motor 42 and a third slider 41. A third slide groove 39 is provided on the top of the supporting plate 6. The third slider 41 and the third slide groove 39 are slidably connected. The top of the third slider 41 is fixedly connected to the bridge bottom survey device body 5. The third slider 41 is threadedly connected to a third threaded screw rod 40. One end of the third threaded screw rod 40 is fixedly connected to the third motor 42. The third motor 42 is fixedly connected to the supporting plate 6. By setting a lateral adjustment mechanism between the bridge bottom survey device body 5 and the supporting plate 6, the bridge bottom survey device body 5 can have a lateral adjustment capability during measurement.

[0022] The surrounding tilt adjustment mechanism includes a driving gear 48 and a driven gear 50. A fourth motor 49 is fixedly connected to the top of the cross plate 36. The top of the fourth motor 49 is fixedly connected to the driving gear 48. The driving gear 48 and the driven gear 50 are transmission-connected. A bearing 54 is fixedly connected to the outer wall of the fixed rod 51. The bearing 54 and the driven gear 50 are fixedly connected. A universal ball 55 is slidably connected to the top of the fixed rod 51. A movable rod 56 is slidably connected to the top of the universal ball 55. The top of the movable rod 56 is fixedly connected to the bearing plate 6. A second adjusting plate 57 is fixedly connected to the bottom of the bearing plate 6. The second adjusting plate 57 is arranged in an annular shape. An annular groove 58 is provided at the bottom of the second adjusting plate 57. An adjusting ball 59 is arranged inside the annular groove 58. The bottom of the adjusting ball 59 is fixedly connected to the second cylinder 47. The bottom of the second cylinder 47 is fixedly connected to the driven gear 50. By setting the surrounding tilt adjustment mechanism at the bottom of the bearing plate 6, the universal ball 55 between the fixed rod 51 and the movable rod 56 can be used to make the bridge bottom survey device body 5 have all-round tilt adjustment capability, thereby further improving the test adjustable capability.

[0023] A plurality of third springs 53 are fixedly connected to the outer wall of the bearing plate 6 , and a connecting rod 52 is fixedly connected to the other end of the third spring 53 . The bottom of the connecting rod 52 is fixedly connected to the fixing rod 51 to ensure the overall stability of the bearing plate 6 .

[0024] The mobile adjustment mechanism includes a support frame 8 and a pulley 12. An annular groove 7 is provided at the bottom of the platform 4. The support frame 8 and the annular groove 7 are slidably connected. A first bolt 10 is threadedly connected to the inner wall of the support frame 8. A fixing plate 9 is fixedly connected to the inner wall of the support frame 8. A first cylinder 11 is fixedly connected to the top of the fixing plate 9. A control board 13 is fixedly connected to the bottom of the first cylinder 11. The control board 13 is located at the bottom of the support frame 8. The pulleys 12 are fixedly connected to both sides of the outer wall at the bottom of the control board 13, respectively, so that the device can be moved and the movement adjustment can be performed according to specific circumstances. The stable support mechanism includes a support foot 21 and a support plate 23. The outer wall of the rotating plate 17 is provided with a first slide groove 18. The inner wall of the first slide groove 18 is slidably connected with a first slider 27. The first slider 27 is threadedly connected with a first threaded screw rod 16. The first slider 27 is rotatably connected to the support foot 21. The support foot 21 is fixedly connected with a movable plate 19. The outer wall of the movable plate 19 is threadedly connected with a second bolt 20. The bottom of the support foot 21 is rotatably connected with a connecting piece 22. The bottom of the connecting piece 22 is fixedly connected with a layer plate 26. A plurality of first springs 24 and a first damper 25 are fixedly connected between the layer plate 26 and the support plate 23. The support adjustment mechanism includes a first bracket 28 and a second surround block 15. The second surround block 15 is slidably connected to the outer wall of the platform 4. The outer wall of the second surround block 15 is fixedly connected to the first bracket 28. The first bracket 28 is rotatably connected to the rotating plate 17. The outer wall of the first bracket 28 A third bolt 29 is threadedly connected, and the first bracket 28 is slidably connected to the outer wall of the platform 4 by the second surround block 15, and is limited and fixed by the third bolt 29, so that the first bracket 28 and the support leg 21 have the ability to adjust the position, and the first slider 27 threadedly connected to the first threaded screw 16 can be driven to rise and fall by rotating the first threaded screw 16, and the support leg 21 rotatably connected to the first slider 27 can be limited by the movable plate 19 and the second bolt 20, and the support leg 21 and the bottom connecting piece 22 are rotatably connected, so that the bottom support plate 23 can be supported according to the terrain, and the first spring 24 and the first damper 25 between the layer plate 26 and the support plate 23 can enable the device to filter vibrations, thereby ensuring that the bridge bottom survey device body 5 has higher stability during measurement.

[0025] Working principle: When in use, the deflection test of the bridge bottom can be carried out by setting the bridge bottom survey device body 5 on the top of the bearing plate 6, and the bridge bottom survey device body 5 and the bearing plate 6 can be provided with a lateral adjustment capability during measurement by setting a circumferential tilt adjustment mechanism at the bottom of the bearing plate 6, so that the bridge bottom survey device body 5 can have an all-round tilt adjustment capability by utilizing the universal ball 55 between the fixed rod 51 and the movable rod 56, thereby further improving the adjustable capability of the test, and the platform 4 can be stably supported by setting a stable support mechanism on the outer wall of the platform 4, and the support position can be adjusted according to the terrain by setting a support adjustment mechanism, thereby ensuring the stability of the bridge bottom survey device body 5 during measurement.

[0026] The above are only preferred specific implementation modes 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 according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An all-round bridge deflection testing device, comprising a rotating frame (1), characterized in that: A platform (4) is provided at the bottom of the rotating frame (1), a rotation adjustment mechanism is provided between the rotating frame (1) and the platform (4), the rotating frame (1) is configured to be U-shaped, connecting plates (34) are provided at both ends of the inner wall of the rotating frame (1), a position adjustment mechanism is provided between the connecting plate (34) and the rotating frame (1), a transverse plate (36) is provided between the two ends of the connecting plate (34), a movable connection mechanism is provided between the transverse plate (36) and the connecting plate (34), a fixing rod (51) is fixedly connected to the top of the transverse plate (36), and the fixing rod (51) is fixedly connected to the top of the transverse plate (36). A bearing plate (6) is arranged at the top of the rod (51), a bridge bottom survey device body (5) is arranged at the top of the bearing plate (6), a lateral adjustment mechanism is arranged between the bridge bottom survey device body (5) and the bearing plate (6), a surrounding tilt adjustment mechanism is arranged at the bottom of the bearing plate (6), a movement adjustment mechanism is arranged at the bottom of the platform (4), a plurality of rotating plates (17) are arranged on the outer wall of the platform (4), a support adjustment mechanism is arranged between the rotating plate (17) and the platform (4), and a stabilizing support mechanism is arranged on the outer wall of the rotating plate (17).

2. The omnidirectional bridge deflection testing device according to claim 1, characterized in that: The rotation adjustment mechanism comprises a first adjustment plate (3) and a first motor (14); the first motor (14) is fixedly connected to the bottom outer wall of the platform (4); the top of the first motor (14) is fixedly connected to the rotating frame (1); the first adjustment plate (3) is fixedly connected to the top outer wall of the platform (4); the first adjustment plate (3) is arranged in a ring shape; the inner wall of the first adjustment plate (3) is slidably connected to a first surround block (2); and the top of the first surround block (2) is fixedly connected to the rotating frame (1).

3. The omnidirectional bridge deflection testing device according to claim 1, characterized in that: The position adjustment mechanism comprises a second slider (33) and an electric push rod (45); second slide grooves (30) are provided at both ends of the inner wall of the rotating frame (1); the second slider (33) and the second slide groove (30) are slidably connected; the second slider (33) is threadedly connected to a second threaded screw rod (32); the top of the second threaded screw rod (32) is fixedly connected to a second motor (31); the second motor (31) and the rotating frame (1) are fixedly connected; the second slider (33) and the connecting plate (34) are rotatably connected; a movable groove (43) is provided at the bottom of the connecting plate (34); movable blocks (44) are provided on both sides of the inner wall of the movable groove (43); the bottom of the movable block (44) and the electric push rod (45) are rotatably connected; the bottom of the electric push rod (45) is fixedly connected to a bottom plate (46); and the bottom plate (46) and the second slider (33) are fixedly connected.

4. The omnidirectional bridge deflection testing device according to claim 1, characterized in that: The movable connection mechanism comprises a second spring (37) and a second damper (38); a second bracket (35) is provided at one end of the connecting plate (34); the second bracket (35) and the transverse plate (36) are rotatably connected; and two ends of the second spring (37) and the second damper (38) are fixedly connected to the connecting plate (34) and the second bracket (35), respectively.

5. The omnidirectional bridge deflection testing device according to claim 1, characterized in that: The lateral adjustment mechanism comprises a third motor (42) and a third slider (41); a third slide groove (39) is provided on the top of the bearing plate (6); the third slider (41) and the third slide groove (39) are slidably connected; the top of the third slider (41) is fixedly connected to the bridge bottom survey device body (5); the third slider (41) is threadedly connected to a third threaded screw rod (40); one end of the third threaded screw rod (40) is fixedly connected to the third motor (42); and the third motor (42) is fixedly connected to the bearing plate (6).

6. The omnidirectional bridge deflection testing device according to claim 1, characterized in that: The surround tilt adjustment mechanism comprises a driving gear (48) and a driven gear (50); a fourth motor (49) is fixedly connected to the top of the transverse plate (36); a top of the fourth motor (49) is fixedly connected to the driving gear (48); the driving gear (48) and the driven gear (50) are transmission-connected; a bearing (54) is fixedly connected to the outer wall of the fixed rod (51); the bearing (54) and the driven gear (50) are fixedly connected; a universal ball (55) is slidably connected to the top of the fixed rod (51); a movable rod (56) is slidably connected to the top of the universal ball (55); a movable rod (56) is fixedly connected to the top of the movable rod (56); a second adjustment plate (57) is fixedly connected to the bottom of the bearing plate (6); the second adjustment plate (57) is arranged in an annular shape; an annular groove (58) is provided at the bottom of the second adjustment plate (57); an adjustment ball (59) is arranged inside the annular groove (58); a second cylinder (47) is fixedly connected to the bottom of the adjustment ball (59); and the bottom of the second cylinder (47) is fixedly connected to the driven gear (50).

7. The omnidirectional bridge deflection testing device according to claim 6, characterized in that: A plurality of third springs (53) are fixedly connected to the outer wall of the bearing plate (6); the other end of the third spring (53) is fixedly connected to a connecting rod (52); and the bottom of the connecting rod (52) is fixedly connected to the fixing rod (51).

8. The omnidirectional bridge deflection testing device according to claim 1, characterized in that: The movable adjustment mechanism comprises a support frame (8) and a pulley (12); an annular groove (7) is provided at the bottom of the platform (4); the support frame (8) and the annular groove (7) are slidably connected; a first bolt (10) is threadedly connected to the inner wall of the support frame (8); a fixing plate (9) is fixedly connected to the inner wall of the support frame (8); a first cylinder (11) is fixedly connected to the top of the fixing plate (9); a control board (13) is fixedly connected to the bottom of the first cylinder (11); the control board (13) is located at the bottom of the support frame (8); and the pulley (12) is fixedly connected to both sides of the outer wall of the bottom of the control board (13).

9. The omnidirectional bridge deflection testing device according to claim 1, characterized in that: The stable support mechanism comprises a support foot (21) and a support plate (23); a first slide groove (18) is provided on an outer wall of the rotating plate (17); a first slider (27) is slidably connected to an inner wall of the first slide groove (18); the first slider (27) is threadedly connected to a first threaded screw rod (16); the first slider (27) and the support foot (21) are rotatably connected; the support foot (21) is fixedly connected to a movable plate (19); a second bolt (20) is threadedly connected to an outer wall of the movable plate (19); a connecting member (22) is rotatably connected to the bottom of the support foot (21); a layer plate (26) is fixedly connected to the bottom of the connecting member (22); a plurality of first springs (24) and a first damper (25) are fixedly connected between the layer plate (26) and the support plate (23).

10. The omnidirectional bridge deflection testing device according to claim 1, characterized in that: The support adjustment mechanism comprises a first bracket (28) and a second surround block (15); the second surround block (15) and an outer wall of the platform (4) are slidably connected; the outer wall of the second surround block (15) and the first bracket (28) are fixedly connected; the first bracket (28) and the rotating plate (17) are rotatably connected; and the outer wall of the first bracket (28) is threadedly connected with a third bolt (29).

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