A bridge engineering preload observation device

Abstract

The present invention discloses a bridge engineering prestressing observation device, which belongs to the technical field of observation devices; it includes two triangular brackets and multiple cameras, the upper sides of the two triangular brackets are fixedly connected with fixed brackets, the fixed brackets are fixedly connected with fixed plates through electric push rods, the fixed brackets and the fixed plates are both connected with rotating rods through rotation, and the two rotating rods on the fixed brackets and the rotating rods on the two fixed plates are respectively installed with mounting components for installing multiple cameras, and the mounting components include two connecting frames and multiple first connecting plates. The present invention uses multiple cameras for simultaneous observation, and the multiple cameras are distributed on the upper and lower sides of the bridge, which can better and more comprehensively observe the changes of the bridge, and in this process, the camera is always in a rotating state, which can further expand the observation range of the camera, thereby improving the accuracy of the data.

Description

Technical Field

[0001] The invention relates to the technical field of bridge engineering, and in particular to a bridge engineering preload observation device. Background Art

[0002] In the process of bridge construction, it is necessary to carry out load preload test on the newly built bridge, that is, to place preload water bags and water bags on the built bridge, and then use cameras to observe the bridge, and then establish a BIM model to analyze and finally complete the inspection operation of the bridge. BIM refers to building information modeling, which is a new tool in architecture, engineering and civil engineering. It is used to describe computer-aided designs that are mainly based on three-dimensional graphics, object-oriented, and related to architecture;

[0003] However, in the actual working process, the placement of the camera is in a fixed state. During the observation process, the camera observation position is limited, and a good observation effect of the bridge cannot be formed, which is not conducive to the construction of the BIM model. In addition, in the observation process, it is necessary to gradually increase the water bags placed on the bridge manually, which is time-consuming and labor-intensive, and there are certain safety hazards. Finally, in the observation process, especially after the water bag is placed on the bridge, dust will fly, which will make the surface of the camera covered with dust, greatly affecting the subsequent observation effect of the camera. Therefore, a bridge engineering preload observation device is provided. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a bridge engineering preload observation device.

[0005] The present invention adopts the following technical solutions:

[0006] 14. The bridge engineering prestressing observation device as claimed in claim 13, wherein the two triangular brackets are fixedly connected to a fixed bracket on the upper sides of the two triangular brackets, the fixed brackets are fixedly connected to a fixed plate by an electric push rod, the fixed brackets and the fixed plate are both penetrated and rotatably connected to a rotating rod, and the two rotating rods on the fixed brackets and the rotating rods on the two fixed plates are respectively installed with mounting components for mounting multiple cameras, and the mounting components include two connecting frames and multiple first connecting plates, the two connecting frames are respectively fixedly connected to the rotating rods, the multiple first connecting plates are rotatably connected head to tail, and the first connecting plates on both sides are respectively rotatably connected to the connecting frames, the connecting frames are also threadedly connected with bolts, a connecting ring is rotatably connected between one end of the first connecting plate and an adjacent first connecting plate, and a first connecting rod is rotatably connected between the other end of the first connecting plate and the adjacent first connecting plate, the multiple cameras are respectively internally threadedly installed in the connecting ring, and a driving component for controlling the rotation of the rotating rod is installed on the outer sides of the two fixed brackets.

[0007] Preferably, an automatic placement component is also installed on the mounting component located above, and the automatic placement component includes a control plate, the control plate is located on the upper side of the first connecting plate, and a plurality of fixing rods are installed on the lower side of the control plate, the plurality of fixing rods are rotatably connected to the first connecting rod, one of the fixing rods is fixedly connected to the control plate, and the other fixing rods are slidably connected to the control plate, the outer side of the control plate is fixedly connected to a second connecting plate, the side wall of the second connecting plate is provided with a plurality of notches, the outer side of the control plate is also fixedly connected to a plurality of fixing frames, the number and position of the plurality of fixing frames are opposite to the notches, each of the side walls of the fixing frames is provided with an oblique groove, a sliding rod is slidably connected in the two oblique grooves, two second connecting rods are fixedly connected to the lower side of the sliding rod, the lower side of the two second connecting rods is fixedly connected to a sixth connecting plate, the lower side of the sixth connecting plate is fixedly connected to a third connecting rod, and the third connecting rod passes through the notch.

[0008] Preferably, a third connecting plate is fixedly connected to the outer side of the fixed plate, a fourth connecting plate is slidably connected up and down in the control plate, a first spring is fixedly connected between the fourth connecting plate and the control plate, a plurality of fifth connecting plates are fixedly connected to the side wall of the fourth connecting plate, the positions and numbers of the plurality of fifth connecting plates are opposite to the fixed frame, and one end of the plurality of fifth connecting plates extends into the fixed frame, and the sliding rod slides through the fifth connecting plate.

[0009] Preferably, a cleaning assembly for cleaning the camera is installed on the outer side of the control panel, and the cleaning assembly includes a ninth connecting plate fixedly installed on the outer side of the first connecting plate, a threaded rod is rotatably connected to the outer side of the first connecting rod, a threaded ring is threadedly connected to the outer side of the threaded rod, an eighth connecting plate is fixedly connected to the outer side of the threaded ring, a seventh connecting plate is commonly fixedly connected to the outer sides of a plurality of the eighth connecting plates, the seventh connecting plate is fixedly connected to the fourth connecting plate through a fourth connecting rod, a fifth connecting rod is slidably connected to the side wall of the ninth connecting plate, one end of the fifth connecting rod is fixedly connected to a cleaning plate, the other end of the fifth connecting rod is fixedly connected to a rack, a gear is fixedly connected to the outer side of the threaded rod, and the gear and the rack are meshed.

[0010] Preferably, one end of the second connecting plate is provided with a chamfer, and the surface of the second connecting plate is roughened.

[0011] Preferably, a rubber sleeve is fixedly sleeved on the outer side of the third connecting rod.

[0012] Preferably, an anti-slip pad is fixedly connected to the lower side of the triangular bracket.

[0013] Preferably, the driving assembly comprises a motor fixedly mounted on the side wall of the fixed bracket, the output shaft of the motor and the two rotating rods are transmission-connected via a pulley assembly, and a tensioning wheel is also mounted on the side wall of the fixed bracket.

[0014] The beneficial effects of the present invention are:

[0015] 1. First, when using cameras for observation, multiple cameras are used for simultaneous observation, and multiple cameras are distributed on the upper and lower sides of the bridge, which can better and more comprehensively observe the changes of the bridge. In this process, the camera is always in a rotating state, which can further expand the observation range of the camera and improve the accuracy of the data;

[0016] 2. Then, during the observation process, multiple water bags are placed on the device. When the camera rotates, the pressure on the bridge can be automatically and gradually increased and in a changing state without manual intervention. The camera can better and more comprehensively observe the changes of the bridge, providing a good foundation for subsequent modeling and analysis;

[0017] 3. Finally, during the rotation of the camera, the rack drives the cleaning plate to move through the fifth connecting rod, so that the cleaning plate moves to the lower side of the camera, forming a wiping and cleaning effect on the camera. At this time, the water bag falls on the bridge, and the dust generated is large, which briefly blocks the camera. In this process, the surface lens of the camera can be cleaned to reduce the damage to the camera, ensure the cleanliness of the camera, and thus ensure the subsequent camera shooting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a bridge engineering preload observation device proposed by the present invention;

[0019] Figure 2 This is a structural schematic diagram of a triangular bracket in a bridge engineering preloading observation device proposed by the present invention;

[0020] Figure 3 A schematic diagram of the connection of the first connecting plate of the preloading observation device for bridge engineering proposed by the present invention;

[0021] Figure 4 This is a connection schematic diagram of a connection frame in a bridge engineering preloading observation device proposed by the present invention;

[0022] Figure 5 This is a schematic diagram of the connection between the first connecting plate and the control plate in a bridge engineering preloading observation device proposed by the present invention;

[0023] Figure 6This is a connection diagram of a control panel in a bridge engineering preloading observation device proposed by the present invention;

[0024] Figure 7 A schematic diagram of the connection between the fourth connecting plate and the fifth connecting plate in a bridge engineering preloading observation device proposed by the present invention;

[0025] Figure 8 This is a schematic structural diagram of a cleaning component in a bridge engineering preloading observation device proposed by the present invention;

[0026] Fig. 9 This is a practical working display diagram of the third connecting rod and the second connecting plate in a bridge engineering prestressing observation device proposed by the present invention.

[0027] In the figure: 1 triangular bracket, 2 fixed bracket, 3 camera, 4 electric push rod, 5 fixed plate, 6 rotating rod, 7 pulley assembly, 8 motor, 9 first connecting plate, 10 connecting ring, 11 first connecting rod, 12 connecting frame, 13 bolt, 14 fixed rod, 15 cleaning plate, 16 control plate, 17 fixed frame, 18 inclined groove, 19 notch, 20 second connecting plate, 21 third connecting plate, 22 fourth connecting plate, 23 first spring, 24 fifth connecting plate, 25 sliding rod, 26 second connecting rod, 27 sixth connecting plate, 28 third connecting rod, 29 fourth connecting rod, 30 seventh connecting plate, 31 eighth connecting plate, 32 threaded rod, 33 gear, 34 rack, 35 ninth connecting plate, 36 threaded ring, 37 fifth connecting rod. DETAILED DESCRIPTION

[0028] See also Figure 1-Figure 9 A bridge engineering prestressing observation device includes two triangular brackets 1 and a plurality of cameras 3. The upper sides of the two triangular brackets 1 are fixedly connected with a fixed bracket 2. The fixed bracket 2 is fixedly connected with a fixed plate 5 through an electric push rod 4. The fixed bracket 2 and the fixed plate 5 are both rotatably connected with a rotating rod 6. The two rotating rods 6 on the fixed bracket 2 and the rotating rods 6 on the two fixed plates 5 are respectively installed with mounting components for installing the plurality of cameras 3. Figure 2 , Figure 3 , Figure 4The mounting assembly includes two connecting frames 12 and a plurality of first connecting plates 9, the two connecting frames 12 are respectively fixedly connected to the rotating rod 6, the plurality of first connecting plates 9 are rotatably connected head to tail, and the first connecting plates 9 on both sides are respectively rotatably connected to the connecting frame 12, the connecting frame 12 is also threadedly connected with a bolt 13, a connecting ring 10 is rotatably connected between one end of the first connecting plate 9 and the adjacent first connecting plate 9, a first connecting rod 11 is rotatably connected between the other end of the first connecting plate 9 and the adjacent first connecting plate 9, a plurality of cameras 3 are respectively internally threadedly installed in the connecting ring 10, a driving assembly for controlling the rotation of the rotating rod 6 is installed on the outer side of the two fixed brackets 2, the driving assembly includes a motor 8 fixedly installed on the side wall of the fixed bracket 2, the output shaft of the motor 8 and the two rotating rods 6 are connected by a pulley assembly 7, a tensioning wheel is also installed on the side wall of the fixed bracket 2, and an anti-slip pad is fixedly connected to the lower side of the triangular bracket 1;

[0029] First, the outer side of the first connecting plate 9 close to the connecting frame 12 on both sides has an opening. First, screw the bolt 13 into the upper side of the connecting frame 12, and pass the bolt 13 through the opening, and then screw the bolt 13 out from the lower side of the connecting frame 12, thereby completing the installation operation of the connecting frame 12 and the first connecting plate 9. When it is necessary to perform pre-stress observation on the bridge, select a suitable number of cameras 3, and thread the cameras 3 on the connecting ring 10, and then place the two triangular brackets 1 on both sides of the bridge, and adjust the triangular brackets 1 and the electric push rod 4 so that the two rotating rods 6 on the left and right sides are respectively located on the upper and lower sides of the bridge, and then, since the first connecting plate 9 is a head-to-tail rotation connection, the first connecting plate 9 is stretched as a whole until the outer side openings of the first connecting plates 9 at both ends are opposite to the connecting frame 12, and the bolt 13 is rotated to pass the bolt 13 through the connecting frame 12 and the opening, thereby completing the connection between the connecting frame 12 and the first The connection plate 9 is installed, and then the camera 3 is screwed into the connection ring 10, and finally the camera 3 is installed and fixed. Then the camera 3 is used to take pictures of the bridge for detection. The camera 3 transmits the captured data to the corresponding control center (such as a computer). The control center analyzes and processes the data and transmits the obtained results to the staff, thereby completing the pre-stress observation operation of the bridge. The above are all prior arts and no unnecessary elaboration is made. Then, the motor 8 is a forward and reverse reciprocating motor 8, that is, after the motor 8 is started, the motor 8 will automatically rotate back and forth. The motor 8 drives the two rotating rods 6 to rotate through the pulley assembly 7. The two rotating rods 6 drive the first connection plate 9 to rotate as a whole through the connection frame 12. The first connection plate 9 drives the camera 3 to rotate through the connection ring 10, thereby increasing the observation range of the camera 3, thereby ensuring the accuracy of the observation results.

[0030] At the same time, in the above-mentioned working process, the pulley assembly 7 is composed of a transmission wheel and a belt, and the tensioning wheel is composed of a wheel and a mounting rod, wherein the wheel is located on the outside of the belt and is against the belt, the wheel and the mounting rod are rotatably connected, the mounting rod and the fixed bracket 2 are slidably connected, and a tensioning spring is fixedly connected between the mounting rod and the fixed bracket 2. The tensioning wheel can automatically adjust the tensioning force of the belt so that the belt is always in a good transmission state. Even during the adjustment process of the electric push rod 4, the belt will be in a good transmission state. The above are all existing technologies and no unnecessary elaboration is made.

[0031] like Figure 5 , Figure 6 , Figure 7 , an automatic placement component is also installed on the installation component located above, and the automatic placement component includes a control panel 16, the control panel 16 is located on the upper side of the first connecting plate 9, and a plurality of fixing rods 14 are installed on the lower side of the control panel 16, and the plurality of fixing rods 14 are rotatably connected to the first connecting rod 11, one of the fixing rods 14 is fixedly connected to the control panel 16, and the other fixing rods 14 are slidably connected to the control panel 16, and a second connecting plate 20 is fixedly connected to the outer side of the control panel 16, and a plurality of notches 19 are opened on the side wall of the second connecting plate 20, and a plurality of fixing rods 14 are fixedly connected to the outer side of the control panel 16 A fixing frame 17, the number and position of the plurality of fixing frames 17 are opposite to the notch 19, the side walls of each fixing frame 17 are provided with an oblique groove 18, a sliding rod 25 is slidably connected in the two oblique grooves 18, two second connecting rods 26 are fixedly connected to the lower side of the sliding rod 25, a sixth connecting plate 27 is fixedly connected to the lower side of the two second connecting rods 26, a third connecting rod 28 is fixedly connected to the lower side of the sixth connecting plate 27, the third connecting rod 28 passes through the notch 19, one end of the second connecting plate 20 is provided with a chamfer, and the surface of the second connecting plate 20 is roughened;

[0032] First, when performing pre-stress observation operation on the bridge, first place some heavy objects such as water bags on the bridge, and then place other water bags in turn on the inner side of the third connecting rod 28 and the upper side of the second connecting plate 20. These water bags are divided into multiple groups, and each group of water bags corresponds to a third connecting rod 28. At this time, the sliding rod 25 is located at the bottom of the inclined groove 18, and the third connecting rod 28 is located in the notch 19, so the water bag can be stuck, and the water bag is installed on the upper side of the second connecting plate 20. The water bag is not located on the bridge. Then, in the process of observing the bridge, the water bags will slide down from the upper side of the second connecting plate 20 in turn (the structure and reason for the sliding are shown below), so that the pressure on the bridge gradually increases. During this process, the camera 3 is always in a rotating state, which can better form a pre-stress observation effect on the bridge.

[0033] The outer side of the fixed plate 5 is fixedly connected with a third connecting plate 21, the control plate 16 is slidably connected with a fourth connecting plate 22, a first spring 23 is fixedly connected between the fourth connecting plate 22 and the control plate 16, a plurality of fifth connecting plates 24 are fixedly connected with the side wall of the fourth connecting plate 22, the positions and numbers of the plurality of fifth connecting plates 24 are opposite to the fixed frame 17, and one end of the plurality of fifth connecting plates 24 extends into the fixed frame 17, the sliding rod 25 slides through the fifth connecting plate 24, and a rubber sleeve is fixedly sleeved on the outer side of the third connecting rod 28;

[0034] In the process of the first connecting plate 9 driving the camera 3 to rotate, the first connecting plate 9 will drive the control plate 16 to rotate through the fixing rod 14, and the control plate 16 will drive the fourth connecting plate 22 to rotate. Figure 6 Based on the direction, when the control plate 16 rotates counterclockwise, when the fourth connecting plate 22 and the third connecting plate 21 are against each other, the third connecting plate 21 will form an obstacle to the fourth connecting plate 22, preventing the fourth connecting plate 22 from following the movement of the control plate 16, and the fourth connecting plate 22 moves upward relative to the control plate 16, and the fourth connecting plate 22 drives the fifth connecting plate 24 to move upward relative to the control plate 16. Since the sliding rod 25 and the fifth connecting plate 24 are connected by sliding left and right, the sliding rod 25 will move in the upper right direction along the direction of the inclined groove 18, and the sliding rod 25 drives the sixth connecting plate 27 and the third connecting rod 28 to the upper right direction through the second connecting rod 26. When the third connecting rod 28 moves out of the notch 19, a gap appears between the third connecting rod 28 and the second connecting plate 20, and the gap gradually increases. At the same time, the second connecting plate 20 will tilt as the control plate 16 rotates. Therefore, when the gap is large enough, the water bag loses the blocking restriction of the third connecting rod 28 under the action of its own gravity, causing the water bag to slide off the second connecting plate 20 and then fall on the bridge, which will cause the pre-pressure on the bridge to become larger, and no manual addition is required, which is safer. Then, since the upper side of the second connecting plate 20 is rough, the movement speed of the water bag will be relatively slow. Fig. 9, when the first connecting plate 9 rotates counterclockwise to the maximum angle and then turns to clockwise rotation, the gap between the third connecting rod 28 and the second connecting plate 20 is the largest. Therefore, when the first connecting plate 9 continues to rotate clockwise, the gap between the third connecting rod 28 and the second connecting plate 20 will be reduced. Therefore, the third connecting rod 28 will continue to clamp the water bag that has not fallen off the second connecting plate 20, and in this process, the time for maintaining the maximum gap between the third connecting rod 28 and the notch 19 is short. Therefore, in this process, only one water bag will fall from the second connecting plate 20. The water bags that have not fallen off the second connecting plate 20 slide to the left along the second connecting plate 20 under the action of their own gravity, and the water bag that has not fallen off the second connecting plate 20 on the far left is against the third connecting rod 28 until the third connecting rod 28 is disconnected from the notch 19 again. As a result, during the observation process, the pre-stress on the bridge increases once every time the camera 3 swings left and right, so that the camera 3 can automatically change the size of the pre-stress on the bridge during observation, thereby ensuring the accuracy of the observation data, which is beneficial to the final BIM modeling and analysis.

[0035] like Figure 8 A cleaning assembly for cleaning the camera 3 is installed on the outer side of the control board 16, and the cleaning assembly includes a ninth connecting plate 35 fixedly installed on the outer side of the first connecting plate 9, a threaded rod 32 is rotatably connected to the outer side of the first connecting rod 11, a threaded ring 36 is threadedly connected to the outer side of the threaded rod 32, and an eighth connecting plate 31 is fixedly connected to the outer side of the threaded ring 36, and a seventh connecting plate 30 is fixedly connected to the outer sides of the plurality of eighth connecting plates 31, and the seventh connecting plate 30 is fixedly connected to the fourth connecting plate 22 through the fourth connecting rod 29, and a fifth connecting rod 37 is slidably connected to the side wall of the ninth connecting plate 35, one end of the fifth connecting rod 37 is fixedly connected to the cleaning plate 15, and the other end of the fifth connecting rod 37 is fixedly connected to the rack 34, and a gear 33 is fixedly connected to the outer side of the threaded rod 32, and the gear 33 and the rack 34 are meshed;

[0036] First, when the fourth connecting plate 22 moves relative to the control plate 16, the fourth connecting plate 22 drives the seventh connecting plate 30 to move through the fourth connecting rod 29, and the seventh connecting plate 30 drives the threaded ring 36 to move through the eighth connecting plate 31. Since the threaded ring 36 and the threaded rod 32 are threadedly connected, Figure 8direction is based on the counterclockwise rotation of the control plate 16. When the control plate 16 rotates counterclockwise, the control plate 16 drives the fixed rod 14, the first connecting rod 11 and the threaded rod 32 to rotate counterclockwise as a whole. When the fourth connecting plate 22 and the third connecting plate 21 are against each other, the fourth connecting plate 22 stops under the obstruction of the third connecting plate 21, thereby causing the fourth connecting plate 22 to move upward relative to the control plate 16 (this refers to switching the reference system, the change of the motion state of the fourth connecting plate 22 and the control plate 16). In the above transmission, first, when the threaded rod 32 rotates, it drives the threaded ring 36 to move, which is a conventional usage. Since the threaded connection has a self-locking phenomenon, the self-locking phenomenon means that when the static load and the working temperature do not change much, the threaded connection will not automatically loosen. However, the necessary condition for the existence of this phenomenon is that the thread lead angle is less than the equivalent of the helical pair. Under the dual effects of the friction angle and the static load, when the thread pitch on the outer side of the threaded rod 32 is large, that is, the thread on the outer side of the threaded rod 32 is not tight, that is, when the thread lead angle is greater than the equivalent friction angle, the threaded rod 32 can be driven to rotate by moving the threaded ring 36 in the reverse direction. Therefore, moving the threaded ring 36 can drive the threaded rod 32 to rotate, the threaded rod 32 drives the gear 33 to rotate, the gear 33 drives the rack 34 to move, and the rack 34 drives the cleaning plate 15 to move through the fifth connecting rod 37. A cleaning soft brush is installed on the cleaning plate 15, so that the cleaning plate 15 moves to the lower side of the camera 3 to form a wiping and cleaning effect on the camera 3. At this time, the water bag is dropped on the bridge, and the dust generated is large, so the camera 3 is temporarily blocked to reduce the damage to the camera 3 and ensure the cleanliness of the camera 3, thereby ensuring the subsequent shooting effect of the camera 3.

[0037] In the present invention, when it is necessary to perform pre-stress observation on the bridge, a suitable number of cameras 3 are selected and the cameras 3 are threadedly installed on the connecting ring 10, and then the two triangular brackets 1 are placed on both sides of the bridge, and by adjusting the triangular brackets 1 and the electric push rods 4, the two rotating rods 6 on the left and right sides are respectively located on the upper and lower sides of the bridge, and then, since the first connecting plate 9 is a head-to-tail rotating connection, the first connecting plate 9 is stretched as a whole until the outer openings of the first connecting plates 9 at both ends are opposite to the connecting frame 12, and the bolts 13 are rotated to make the bolts 13 pass through the connecting frame 12 and the openings, thereby completing the installation operation of the connecting frame 12 and the first connecting plate 9, and then the camera 3 is screwed into the connecting ring 10, and finally the installation and fixing operation of the camera 3 is completed, and then The bridge is photographed and inspected by the camera 3, and the camera 3 transmits the photographed data to the corresponding control center (such as a computer). The control center analyzes and processes the data and transmits the obtained results to the staff, thereby completing the pre-stressing observation operation of the bridge. The above are all existing technologies and no unnecessary details are given. Then, the motor 8 is a forward and reverse reciprocating motor 8, that is, after the motor 8 is started, the motor 8 will automatically rotate back and forth. The motor 8 drives the two rotating rods 6 to rotate through the pulley assembly 7. The two rotating rods 6 drive the first connecting plate 9 to rotate as a whole through the connecting frame 12. The first connecting plate 9 drives the camera 3 to rotate through the connecting ring 10, thereby increasing the observation range of the camera 3, thereby ensuring the accuracy of the observation results;

[0038] When performing pre-stress observation operation on the bridge, first place some heavy objects such as water bags on the bridge, and then place other water bags on the inner side of the third connecting rod 28 and the upper side of the second connecting plate 20 in sequence. These water bags are divided into multiple groups, and each group of water bags corresponds to a third connecting rod 28. At this time, the sliding rod 25 is located at the bottom of the inclined groove 18, and the third connecting rod 28 is located in the notch 19, so the water bag can be stuck, and the water bag is installed on the upper side of the second connecting plate 20. The water bag is not located on the bridge. Then, in the process of observing the bridge, the water bags will slide down from the upper side of the second connecting plate 20 in sequence (the structure and reason for the slide are described below), so that the pressure on the bridge gradually increases. During this process, the camera 3 is always in a rotating state, which can better form a pre-stress observation effect on the bridge.

[0039] In the process of the first connecting plate 9 driving the camera 3 to rotate, the first connecting plate 9 will drive the control plate 16 to rotate through the fixing rod 14, and the control plate 16 will drive the fourth connecting plate 22 to rotate. Figure 6Based on the direction, when the control plate 16 rotates counterclockwise, when the fourth connecting plate 22 and the third connecting plate 21 are against each other, the third connecting plate 21 will form an obstacle to the fourth connecting plate 22, preventing the fourth connecting plate 22 from following the movement of the control plate 16, and the fourth connecting plate 22 moves upward relative to the control plate 16, and the fourth connecting plate 22 drives the fifth connecting plate 24 to move upward relative to the control plate 16. Since the sliding rod 25 and the fifth connecting plate 24 are connected by sliding left and right, the sliding rod 25 will move in the upper right direction along the direction of the inclined groove 18, and the sliding rod 25 drives the sixth connecting plate 27 and the third connecting rod 28 to the upper right direction through the second connecting rod 26. When the third connecting rod 28 moves out of the notch 19, a gap appears between the third connecting rod 28 and the second connecting plate 20, and the gap gradually increases. At the same time, the second connecting plate 20 will tilt as the control plate 16 rotates. Therefore, when the gap is large enough, the water bag loses the blocking restriction of the third connecting rod 28 under the action of its own gravity, causing the water bag to slide off the second connecting plate 20 and then fall on the bridge, which will cause the pre-pressure on the bridge to become larger, and no manual addition is required, which is safer. Then, since the upper side of the second connecting plate 20 is rough, the movement speed of the water bag will be relatively slow. Fig. 9 , when the first connecting plate 9 rotates counterclockwise to the maximum angle and then turns to clockwise rotation, the gap between the third connecting rod 28 and the second connecting plate 20 is the largest. Therefore, when the first connecting plate 9 continues to rotate clockwise, the gap between the third connecting rod 28 and the second connecting plate 20 will be reduced. Therefore, the third connecting rod 28 will continue to clamp the water bag that has not fallen off the second connecting plate 20, and in this process, the time for maintaining the maximum gap between the third connecting rod 28 and the notch 19 is short. Therefore, in this process, only one water bag will fall from the second connecting plate 20. The water bags that have not fallen from the second connecting plate 20 slide to the left along the second connecting plate 20 under the action of their own gravity, and the water bag that has not fallen from the second connecting plate 20 on the far left is against the third connecting rod 28 until the third connecting rod 28 is disconnected from the notch 19 again, thereby causing the pre-stress on the bridge to increase once each time the camera 3 swings left and right during the observation process, so that the camera 3 can automatically change the size of the pre-stress on the bridge while observing, thereby ensuring the accuracy of the observation data, which is beneficial to the final BIM modeling and analysis work;

[0040] When the fourth connecting plate 22 moves relative to the control plate 16, the fourth connecting plate 22 drives the seventh connecting plate 30 to move through the fourth connecting rod 29, and the seventh connecting plate 30 drives the threaded ring 36 to move through the eighth connecting plate 31. Since the threaded ring 36 and the threaded rod 32 are threadedly connected, the moving threaded ring 36 will drive the threaded rod 32 to rotate, and the threaded rod 32 drives the gear 33 to rotate, and the gear 33 drives the rack 34 to move. The rack 34 drives the cleaning plate 15 to move through the fifth connecting rod 37. A soft cleaning brush is installed on the cleaning plate 15, so that the cleaning plate 15 moves to the lower side of the camera 3, forming a wiping and cleaning effect on the camera 3. At this time, the water bag falls on the bridge, and the dust generated is relatively large, so the camera 3 is temporarily blocked to reduce the damage to the camera 3 and ensure the cleanliness of the camera 3, thereby ensuring the subsequent shooting effect of the camera 3.

Claims

1. A bridge engineering prestressing observation device, comprising two triangular brackets (1) and a plurality of cameras (3), characterized in that: The upper sides of the two triangular brackets (1) are fixedly connected to a fixed bracket (2), the fixed bracket (2) is fixedly connected to a fixed plate (5) via an electric push rod (4), the fixed bracket (2) and the fixed plate (5) are both rotatably connected to a rotating rod (6), and mounting components for mounting a plurality of cameras (3) are respectively mounted between the two rotating rods (6) on the fixed bracket (2) and the rotating rods (6) on the two fixed plates (5), the mounting components comprising two connecting frames (12) and a plurality of first connecting plates (9), the two connecting frames (12) are respectively fixedly connected to the rotating rods (6), and the plurality of cameras (3) are respectively mounted between the two rotating rods (6) on the fixed bracket (2). The first connecting plates (9) are rotatably connected end to end, and the first connecting plates (9) on both sides are rotatably connected to the connecting frames (12), the connecting frames (12) are also threadedly connected with bolts (13), one end of the first connecting plate (9) is rotatably connected to an adjacent first connecting plate (9) with a connecting ring (10), the other end of the first connecting plate (9) is rotatably connected to an adjacent first connecting plate (9) with a first connecting rod (11), a plurality of cameras (3) are respectively internally threadedly installed in the connecting ring (10), a driving assembly for controlling the rotation of the rotating rod (6) is installed on the outer sides of the two fixed brackets (2), and the upper portion of the first connecting plate (9) is provided with a plurality of cameras (3) having a plurality of cameras (3) internally threadedly installed in the connecting ring (10), a driving assembly for controlling the rotation of the rotating rod (6) is installed on the outer sides of the two fixed brackets (2), and the upper portion of the first connecting plate (9) is provided with ... and a plurality of cameras (3) are provided with a plurality of cameras (3) internally threadedly installed in the connecting ring (10), and a plurality of cameras (3) are provided with a plurality of cameras (3) internally threadedly installed in the connecting ring (10), and a plurality of cameras (3) are provided with a plurality of cameras (3) internally threadedly installed in the connecting ring (10), and a plurality of cameras (3) are provided with a plurality of cameras (3) internally threadedly installed in the connecting ring (10), and a plurality of cameras (3) are provided with a plurality of cameras (3) internally threadedly installed in the connecting An automatic placement component is also installed on the mounting component, the automatic placement component comprising a control panel (16), the control panel (16) being located on the upper side of the first connecting plate (9), a plurality of fixing rods (14) being installed on the lower side of the control panel (16), the plurality of fixing rods (14) being rotatably connected to the first connecting rod (11), one of the fixing rods (14) being fixedly connected to the control panel (16), and the other fixing rods (14) being slidably connected to the control panel (16), a second connecting plate (20) being fixedly connected to the outer side of the control panel (16), a plurality of notches (19) being provided on the side wall of the second connecting plate (20), and the control panel (16) being fixedly connected to the outer side of the second connecting plate (20). A plurality of fixing frames (17) are fixedly connected to the outer side of the control plate (16), the number and position of the plurality of fixing frames (17) are opposite to the notch (19), and both side walls of each fixing frame (17) are provided with an oblique groove (18), two sliding rods (25) are slidably connected in two of the oblique grooves (18), the lower side of the sliding rod (25) is fixedly connected to two second connecting rods (26), the lower sides of the two second connecting rods (26) are fixedly connected to a sixth connecting plate (27), the lower side of the sixth connecting plate (27) is fixedly connected to a third connecting rod (28), and the third connecting rod (28) passes through the notch (19).

2. A bridge engineering preload observation device according to claim 1, characterized in that: A third connecting plate (21) is fixedly connected to the outer side of the fixing plate (5), a fourth connecting plate (22) is slidably connected to the inside of the control plate (16) up and down, a first spring (23) is fixedly connected between the fourth connecting plate (22) and the control plate (16), a plurality of fifth connecting plates (24) are fixedly connected to the side wall of the fourth connecting plate (22), the positions and numbers of the plurality of fifth connecting plates (24) are opposite to the fixing frame (17), one end of the plurality of fifth connecting plates (24) extends into the fixing frame (17), and the sliding rod (25) slidably penetrates the fifth connecting plate (24).

3. A bridge engineering preloading observation device according to claim 2, characterized in that: A cleaning assembly for cleaning the camera (3) is mounted on the outside of the control panel (16), the cleaning assembly comprising a ninth connecting plate (35) fixedly mounted on the outside of the first connecting plate (9), a threaded rod (32) is rotatably connected to the outside of the first connecting rod (11), a threaded ring (36) is threadedly connected to the outside of the threaded rod (32), an eighth connecting plate (31) is fixedly connected to the outside of the threaded ring (36), a seventh connecting plate (30) is fixedly connected to the outsides of a plurality of the eighth connecting plates (31), the seventh connecting plate (30) is fixedly connected to the outside of the plurality of the eighth connecting plates (31) via a fourth connecting rod (29) and a fourth connecting plate (22), a fifth connecting rod (37) is slidably connected to the side wall of the ninth connecting plate (35), one end of the fifth connecting rod (37) is fixedly connected to the cleaning plate (15), the other end of the fifth connecting rod (37) is fixedly connected to a rack (34), a gear (33) is fixedly connected to the outside of the threaded rod (32), and the gear (33) and the rack (34) are meshed.

4. A bridge engineering preloading observation device according to claim 1, characterized in that: One end of the second connecting plate (20) is provided with a chamfer, and the surface of the second connecting plate (20) is roughened.

5. A bridge engineering preloading observation device according to claim 1, characterized in that: The outer side of the third connecting rod (28) is fixedly sleeved with a rubber sleeve.

6. A bridge engineering preload observation device according to claim 1, characterized in that: An anti-slip pad is fixedly connected to the lower side of the triangular bracket (1).

7. A bridge engineering preloading observation device according to claim 1, characterized in that: The driving assembly comprises a motor (8) fixedly mounted on a side wall of a fixed bracket (2); an output shaft of the motor (8) and two rotating rods (6) are connected in transmission via a pulley assembly (7); and a tensioning wheel is also mounted on the side wall of the fixed bracket (2).

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