Monitoring device for open caisson construction

Abstract

The utility model discloses a monitoring device for open caisson construction, which belongs to the technical field of open caisson construction monitoring and comprises a controller and a sunshade, the sunshade comprises a support, a bottom plate, a top plate arranged above the bottom plate and two groups of sliding mechanisms arranged between the bottom plate and the top plate, and the two groups of sliding mechanisms are arranged on the front side and the rear side of the sunshade; the support is connected with the bottom plate through the supporting rod, the bottom plate is slidably connected with the top plate through the sliding mechanism, light holes are formed in the top plate and the bottom plate in a penetrating mode, the relative positions of the light holes in the top plate and the light holes in the bottom plate are adjusted through the sliding mechanism, and then the light transmittance of the sunshade is adjusted. A photosensitive sensor is arranged at the bottom of the bottom plate and electrically connected with the controller. A camera is arranged below the bottom plate; and compared with a manual illumination mode, more manpower resources are saved, and more convenience and safety are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of caisson construction monitoring, in particular to a monitoring device used for caisson construction. Background Art

[0002] A caisson is a well-shaped structure. Its working principle is to dig soil in the well, rely on its own gravity to overcome the frictional resistance of the well wall and sink to the designed elevation. The bottom is then sealed with concrete and the well hole is filled to prevent groundwater and foundation soil from entering the well, eventually becoming the foundation of a bridge pier or other structure.

[0003] During caisson construction, monitoring is required to avoid uneven settlement, tilting or other structural problems that may occur during the caisson sinking process. Since caisson sinking is an underground construction operation, the underground light intensity is weak, and artificial lighting is usually used to supplement the construction environment. However, artificial lighting is more troublesome and labor-intensive. Utility Model Content

[0004] The purpose of this utility model is to address the deficiencies in the above-mentioned technologies and to propose a monitoring device for caisson construction, aiming to solve the technical problem that in the existing technology of caisson construction monitoring, it is troublesome and labor-intensive to supplement the construction environment with artificial lighting.

[0005] The utility model provides a monitoring device for caisson construction, comprising a controller and a sunshade, wherein the sunshade comprises a support, a bottom plate, a top plate arranged above the bottom plate, and two sets of sliding mechanisms arranged between the bottom plate and the top plate, wherein the two sets of sliding mechanisms are arranged at the front and rear sides of the sunshade;

[0006] The support is connected to the base plate through a support rod, and the base plate is slidably connected to the top plate through a sliding mechanism. Light-transmitting holes are set through both the top plate and the bottom plate. The relative positions of the light-transmitting holes on the top plate and the light-transmitting holes on the bottom plate are adjusted by the sliding mechanism, thereby adjusting the light transmittance of the awning; a photosensor is provided at the bottom of the base plate, and the photosensor is electrically connected to the controller; a camera is set below the base plate.

[0007] Optionally, the sliding mechanism includes a first guide rail provided on the front and rear sides of the bottom of the top plate, a bearing pulley is provided on the first guide rail, the middle part of the bearing pulley is connected to the two inner walls of the first guide rail through a rotating rod, the top of the bearing pulley is slidably connected to the first guide rail, and a rack is provided on the side of the first guide rail; a second guide rail is provided on the front and rear sides of the top of the bottom plate, the bottom of the bearing pulley is slidably connected to the second guide rail, a motor and a gear are provided on the top of the bottom plate, the motor is electrically connected to the controller, the output shaft of the motor is connected to the central rotating shaft of the gear, and the gear is meshed with the rack.

[0008] Optionally, a fixing frame is provided at the extension of the front and rear sides of the bottom plate, a sliding groove is provided on the upper part of the fixing frame, and a sliding block is provided at the extension of the front and rear sides of the top plate, and the sliding block extends into the sliding groove and is slidably connected to the sliding groove.

[0009] Optionally, the light-transmitting holes on the top plate and the light-transmitting holes on the bottom plate both include a first light-transmitting hole and a second light-transmitting hole, there are multiple first light-transmitting holes and second light-transmitting holes, and the first light-transmitting holes and the second light-transmitting holes are alternately arranged in parallel, and the diameter of the first light-transmitting hole is larger than the diameter of the second light-transmitting hole.

[0010] Optionally, a plurality of bearing pulleys are provided, and the plurality of bearing pulleys are evenly spaced and arranged on the first guide rail.

[0011] Optionally, a lighting lamp is provided on the bottom surface of the base plate.

[0012] Optionally, rollers are provided at the bottom of the support.

[0013] Optionally, there are multiple sunshades, which are arranged in a circumferential direction.

[0014] Compared with the existing technology, it has the following beneficial effects:

[0015] The utility model provides a monitoring device for caisson construction, which can automatically collect the light intensity under the awning through the set light-sensitive sensor, and set a sliding mechanism between the bottom plate and the top plate of the awning, so that under the action of the sliding mechanism, the top plate is driven to move in the direction close to the bottom plate or to move in the direction away from the bottom plate, and the light intensity through the awning is automatically adjusted to continuously increase or decrease according to actual needs. Compared with the method of artificial lighting, it saves more human resources and is more convenient and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A schematic structural diagram of a monitoring device for caisson construction provided by the present invention;

[0018] Figure 2 A bottom view of the top plate provided by the utility model;

[0019] Figure 3 A top view of the base plate provided by the present utility model;

[0020] Figure 4This is a schematic diagram of the structure of the gear rack provided by the present invention in a meshing state;

[0021] Figure 5 This is a state diagram of the first light-transmitting hole and the second light-transmitting hole on the bottom plate and the top plate when the light intensity provided by the utility model is at the minimum state;

[0022] Figure 6 This is a schematic structural diagram of a plurality of circumferentially arranged sunshades provided by the present invention;

[0023] Figure 7 for Figure 1 A magnified schematic diagram of the structure in the middle.

[0024] In the figure, 1, awning; 11, support; 12, bottom plate; 13, top plate; 141, first light transmission hole; 142, second light transmission hole; 15, roller; 16, support rod; 17, photosensor;

[0025] 21. First guide rail; 22. Bearing pulley; 23. Rack; 24. Motor; 25. Gear; 26. Rotating rod; 27. Second guide rail; 28. Fixed bracket; 281. Slide groove; 29. ​​Slider;

[0026] 3. Lighting; 4. Camera; 5. Caisson; 6. Calibration plate. DETAILED DESCRIPTION

[0027] In order to make it easier to understand the structure of the present invention and the functional features and advantages that can be achieved, the following is a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings:

[0028] Example:

[0029] like Figure 1 As shown, the utility model provides a monitoring device for caisson construction, including a controller and a sunshade 1. The sunshade 1 includes a support 11, a bottom plate 12, a top plate 13 provided above the bottom plate 12, and two sets of sliding mechanisms provided between the bottom plate 12 and the top plate 13. The two sets of sliding mechanisms are provided on the front and rear sides of the sunshade 1.

[0030] The support 11 is connected to the base plate 12 through a support rod 16, and the base plate 12 is slidably connected to the top plate 13 through a sliding mechanism. Both the top plate 13 and the bottom plate 12 are provided with light-transmitting holes. The relative positions of the light-transmitting holes on the top plate 13 and the light-transmitting holes on the bottom plate 12 are adjusted by the sliding mechanism, thereby adjusting the light transmittance of the awning 1; a photosensor 17 is provided at the bottom of the base plate 12, and the photosensor 17 is electrically connected to the controller; a camera 4 is provided below the base plate 12.

[0031] Before the construction of caisson 5, the monitoring device is placed on both sides of caisson 5, and a digital twin model of caisson 5 is constructed. Then, the parameters of camera 4 are calibrated. The specific calibration process is as follows: first, a calibration plate 6 is set on the side wall of caisson 5, and the calibration plate 6 is moved to take pictures using camera 4. Camera 4 takes pictures at different angles. After obtaining the pictures, the corner points in all images are located, and finally, the parameters of camera 4 are obtained using numerical analysis methods. After the parameters of camera 4 are calibrated, the physical world three-dimensional coordinates of the pictures can be obtained. By using multiple cameras 4, the physical three-dimensional coordinates of the foundation of caisson 5 can be obtained.

[0032] In the present invention, the RGB sensor in the RGB-D camera 4 is used to capture images at different times, and the images include various monitoring data (such as displacement, stress, water level and other monitoring data information). For example, after the RGB sensor captures images at different times, the image at the previous moment is selected as the reference image, and a subset containing the measurement points in the reference image is selected. Then, the images before and after deformation are compared, and the sinking information can be obtained using the linear intensity change model. The camera 4 calibration parameters are used to obtain the sinking displacement information of the caisson 5. After the sinking displacement information is obtained, the three-dimensional spatial model of the caisson 5 is updated to display the spatial position of the foundation of the caisson 5. It can be determined whether the spatial position is skewed, thereby guiding the construction of the caisson 5.

[0033] As the caisson 5 moves downward, the surrounding environment of the caisson 5 gradually becomes darker. In order not to affect the camera 4 from obtaining a clear image, monitoring data is obtained through image data analysis, and the light intensity parameters under the awning 1 are collected in real time using the light sensor 17. The light intensity parameters are sent to the controller. After analysis and calculation, the controller adjusts the light intensity according to needs. The specific process of adjusting the light intensity is as follows: the bottom plate 12 and the top plate 13 are slidably connected by a sliding mechanism. When it is necessary to increase the sunlight exposure, the sliding mechanism is driven to make the top plate 13 move in the direction close to the bottom plate 12 until the top plate 13 and the bottom plate 12 are completely aligned. Overlap, since both the top plate 13 and the bottom plate 12 are provided with light-transmitting holes, and the sizes and positions of the light-transmitting holes on the top plate 13 and the bottom plate 12 are exactly the same, the light-transmitting holes on the top plate 13 and the bottom plate 12 completely overlap, and the sunlight can pass through the light-transmitting holes on the top plate 13 and the light-transmitting holes on the bottom plate 12 in turn to illuminate the construction environment of the caisson 5; when it is necessary to reduce the sunlight exposure, the sliding mechanism is driven to move the top plate 13 away from the bottom plate 12, and the light-transmitting holes on the top plate 13 are blocked by the bottom plate 12, so that the light passing through the light-transmitting holes on the top plate 13 cannot pass through the bottom plate 12, thereby isolating the sunlight.

[0034] like Figure 2-5As shown, the sliding mechanism includes a first guide rail 21 provided on the front and rear sides of the bottom of the top plate 13, a bearing pulley 22 is provided on the first guide rail 21, the middle part of the bearing pulley 22 is connected to the two inner side walls of the first guide rail 21 through a rotating rod 26, the top of the bearing pulley 22 is slidably connected to the first guide rail 21, and a rack 23 is provided on the side of the first guide rail 21, and the rack 23 is provided at the bottom of the top plate 13; a second guide rail 27 is provided on the front and rear sides of the top of the bottom plate 12, and the bottom of the bearing pulley 22 is slidably connected to the second guide rail 27, and a motor 24 and a gear 25 are provided on the top of the bottom plate 12, the motor 24 is electrically connected to the controller, the output shaft of the motor 24 is connected to the central rotating shaft of the gear 25, and the gear 25 is meshed with the rack 23;

[0035] The light-transmitting holes on the top plate 13 and the light-transmitting holes on the bottom plate 12 both include a first light-transmitting hole 141 and a second light-transmitting hole 142. A plurality of first light-transmitting holes 141 and a plurality of second light-transmitting holes 142 are provided, and the first light-transmitting holes 141 and the second light-transmitting holes 142 are alternately arranged in parallel. The diameter of the first light-transmitting hole 141 is larger than the diameter of the second light-transmitting hole 142.

[0036] When the light intensity needs to be increased, the controller controls the motor 24 to rotate in the forward direction, and the rotation of the motor 24 drives the gear 25 to rotate. Since the gear 25 and the motor 24 are fixed on the bottom plate 12, the gear 25 is meshed with the rack 23, causing the rack 23 to move. At the same time, since the bearing pulley 22 is arranged on the first guide rail 21, the top and bottom of the bearing pulley 22 are slidably connected to the first guide rail 21 and the second guide rail 27 respectively. Under the meshing action of the gear 25 and the rack 23 and the drive of the bearing pulley 22, the rack 23 synchronously drives the top plate 13 to move. At this time, the top plate 13 moves horizontally in the direction close to the bottom plate 12. Since the positions and sizes of the first light transmission holes 141 and the second light transmission holes 142 on the bottom plate 12 and the top plate 13 are consistent, the light transmission holes on the bottom plate 12 and the light transmission holes on the top plate 13 are continuously overlapped, and the light intensity is continuously increased until the light transmission holes on the bottom plate 12 and the light transmission holes on the top plate 13 are completely overlapped, and the light intensity is maximum.

[0037] When the light intensity needs to be weakened, the controller controls the motor 24 to rotate in the opposite direction, and drives the gear 25 to rotate and the rack 23 to transmit, thereby driving the top plate 13 to move horizontally in the direction away from the bottom plate 12, and the light holes on the bottom plate 12 and the light holes on the top plate 13 are continuously separated. Since the first light holes 141 and the second light holes 142 on the bottom plate 12 and the top plate 13 are alternately arranged, and the diameter of the first light holes 141 is larger than the diameter of the second light holes 142, when the top plate 13 moves horizontally in the direction away from the bottom plate 12, the second light holes 142 on the top plate 13 will move into the gap between the first light holes 141 on the bottom plate 12, and the light intensity will continue to weaken until the light holes on the bottom plate 12 are completely separated from the light holes on the top plate 13, and the light intensity is minimized, that is, the awning 1 completely blocks the sunlight;

[0038] An image is captured by the camera 4 and sent to the controller. The controller analyzes and processes the captured image to obtain monitoring data information. During the monitoring process, the light intensity information in the caisson 5 environment is collected according to the photosensor 17. The motor 24 is rotated forward or reversed according to the light intensity information to adjust the degree of misalignment between the top plate 13 and the bottom plate 12, and then adjust the transmittance to obtain the light intensity suitable for the environment, ensuring that the camera 4 captures a clear image.

[0039] like Figure 7 As shown, as an optional embodiment, a fixing frame 28 is provided at the extension of the front and rear sides of the bottom plate 12, and a slide groove 281 is provided on the upper portion of the fixing frame 28. A slider 29 is provided at the extension of the front and rear sides of the top plate 13, and the slider 29 extends into the slide groove 281 and is slidably connected to the slide groove 281;

[0040] In order to prevent the top plate 13 from shaking up and down during the relative movement between the top plate 13 and the bottom plate 12, the fixing frame 28, the sliding groove 281 and the slider 29 are arranged so that when the top plate 13 moves, the slider 29 of the top plate 13 slides in the sliding groove 281 in the fixing frame 28, thereby limiting the top plate 13 to move only in the horizontal direction and not shaking in the vertical direction.

[0041] As an optional embodiment, a lighting lamp 3 is provided on the bottom surface of the base plate 12, and the lighting lamp 3 can further supplement the brightness of the awning 1 to obtain a picture with a better shooting effect.

[0042] As an optional embodiment, a roller 15 is provided at the bottom of the support 11, which facilitates the movement of the awning 1, saves manpower, and makes the movement smoother; the roller 15 can be set as a self-locking roller 15 with a self-locking function, which can lock the awning 1 when it is placed and does not need to be moved to prevent it from rolling; and when it needs to be moved, it can be easily unlocked and moved.

[0043] like Figure 6 As shown, there are multiple awnings 1, and the multiple awnings 1 are arranged in a circle with the caisson 5 as the center. In this embodiment, there are eight awnings 1. The eight awnings 1 arranged in a circle can adjust the light intensity around the caisson 5 in multiple directions, and combined with the fill light effect of the lighting lamp 3, ensure that the camera 4 under the awning 1 can obtain clear and high-quality images, which is convenient for subsequent image analysis and monitoring of the caisson 5.

[0044] It should be noted that the photosensor 17 element used in this application is an existing electronic component in this field. Those skilled in the art can understand the circuit structure of the photosensor 17 and the circuit connection structure between each other based on the existing public technical knowledge and technical information. The embodiment of this application will not elaborate on this, and those skilled in the art can freely choose the corresponding model according to their needs. This embodiment does not impose any specific restrictions here.

[0045] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any person skilled in the art can utilize the above technical content to make many possible changes and modifications to the present invention without departing from the scope of the present invention, or modify it into an equivalent embodiment with equivalent changes. Therefore, any changes, modifications, equivalent changes, and modifications made to the above embodiments based on the technology of the present invention that do not depart from the content of the present invention are within the scope of protection of the present invention.

Claims

1. A monitoring device for caisson construction, characterized in that , comprising a controller, an awning (1), the awning (1) comprising a support (11), a bottom plate (12), a top plate (13) arranged above the bottom plate (12), two sets of sliding mechanisms arranged between the bottom plate (12) and the top plate (13), the two sets of sliding mechanisms being arranged on the front side and the rear side of the awning (1); The support (11) is connected to the base plate (12) through a support rod (16), and the base plate (12) is slidably connected to the top plate (13) through the sliding mechanism. Both the top plate (13) and the base plate (12) are provided with light-transmitting holes. The relative positions of the light-transmitting holes on the top plate (13) and the light-transmitting holes on the base plate (12) are adjusted by the sliding mechanism, thereby adjusting the light transmittance of the awning (1); a photosensor (17) is provided at the bottom of the base plate (12), and the photosensor (17) is electrically connected to the controller; and a camera (4) is provided below the base plate (12).

2. A monitoring device for caisson construction according to claim 1, characterized in that: The sliding mechanism comprises a first guide rail (21) provided on the front and rear sides of the bottom of the top plate (13), a bearing pulley (22) being provided on the first guide rail (21), the middle part of the bearing pulley (22) being connected to the two inner side walls of the first guide rail (21) through a rotating rod (26), the top of the bearing pulley (22) being slidably connected to the first guide rail (21), and a rack (23) being provided on the side of the first guide rail (21); a second guide rail (27) being provided on the front and rear sides of the top of the bottom plate (12), the bottom of the bearing pulley (22) being slidably connected to the second guide rail (27), a motor (24) and a gear (25) being provided on the top of the bottom plate (12), the motor (24) being electrically connected to the controller, the output shaft of the motor (24) being connected to the central rotating shaft of the gear (25), and the gear (25) being meshed and connected with the rack (23).

3. A monitoring device for caisson construction according to claim 2, characterized in that: A fixing frame (28) is provided at the extension of the front side and the rear side of the bottom plate (12), and a sliding groove (281) is provided on the upper part of the fixing frame (28). A sliding block (29) is provided at the extension of the front side and the rear side of the top plate (13), and the sliding block (29) extends into the sliding groove (281) and is slidably connected with the sliding groove (281).

4. The monitoring device for caisson construction according to claim 1, characterized in that: The light-transmitting holes on the top plate (13) and the light-transmitting holes on the bottom plate (12) both include a first light-transmitting hole (141) and a second light-transmitting hole (142), a plurality of the first light-transmitting holes (141) and the second light-transmitting holes (142) are provided, and the first light-transmitting holes (141) and the second light-transmitting holes (142) are alternately arranged in parallel, and the diameter of the first light-transmitting hole (141) is greater than the diameter of the second light-transmitting hole (142).

5. The monitoring device for caisson construction according to claim 2, characterized in that: A plurality of bearing pulleys (22) are provided, and the plurality of bearing pulleys (22) are evenly spaced and arranged on the first guide rail (21).

6. The monitoring device for caisson construction according to claim 1, characterized in that: The bottom surface of the bottom plate (12) is provided with an illumination lamp (3).

7. The monitoring device for caisson construction according to claim 1, characterized in that: A roller (15) is provided at the bottom of the support (11).

8. The monitoring device for caisson construction according to claim 1, characterized in that: The sunshade awning (1) is provided in plurality, and the plurality of sunshade awnings (1) are arranged in a circumferential direction.

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