A monitoring device for foundation pits in construction projects

Abstract

This utility model discloses a foundation pit monitoring device for building construction, belonging to the field of foundation pit monitoring technology. It addresses the problems of uneven ground in foundation pits affecting the accuracy of detection data and complex construction site conditions that can easily damage laser scanners. The device includes a base plate, a fixed cone, an adjustment mechanism, a horizontal plate, a level, a lifting mechanism, a protective mechanism, and a laser scanner. The fixed cone is symmetrically connected to the bottom perimeter of the base plate. The adjustment mechanism is symmetrically positioned above the base plate. The horizontal plate is positioned above the adjustment mechanism. The level is fixedly connected to the front of the horizontal plate. The lifting mechanism is positioned above the horizontal plate, and the protective mechanism is positioned above the lifting mechanism. This utility model, through its adjustment mechanism, allows for double-end adjustment of the horizontal plate, ensuring the absolute level accuracy of the laser scanner. It facilitates adjustment of the device at any position and angle, improving the accuracy of laser scanner monitoring.

Description

Technical Field

[0001] This utility model belongs to the field of foundation pit monitoring technology, specifically relating to a foundation pit monitoring device for building engineering. Background Technology

[0002] An excavation pit is a pit dug at the foundation design location, according to the base elevation and foundation plane dimensions. The excavation pit plays a foundational role in construction projects, and the construction quality of the excavation pit cannot be ignored. During the construction of the excavation pit, it is necessary to use an excavation pit monitoring device to monitor the excavation pit in real time. When the excavation pit deforms, it is convenient for people to obtain monitoring data in a timely manner, so that people can take corresponding support measures to ensure the stability of the excavation pit edge.

[0003] The existing technology, patent publication number CN214940496U, describes a building foundation pit deformation monitoring device. In use, it connects to support rods on both sides, remaining stationary without affecting height adjustment. The lifting column then drives the laser scanner to rotate, facilitating monitoring from all sides. The overall operation is convenient, allowing simultaneous adjustment of the laser scanner's height and angle for monitoring at different heights and from all sides. However, in practical use, it still has the following shortcomings: From a practical standpoint, this device uses a laser scanner to detect the surrounding area. During placement, the uneven ground of the foundation pit may cause angular deviation in the laser scanner, increasing the deviation of the measurement data and affecting its accuracy. Furthermore, since foundation pits are usually exposed, and the construction site conditions are complex, damage to the laser scanner is possible, potentially rendering it unusable and affecting monitoring efficiency and accuracy.

[0004] Therefore, there is a need for a monitoring device for foundation pits in construction projects to solve the problems of uneven ground in foundation pits affecting the accuracy of detection data and complex construction site conditions that can easily damage laser scanners. Utility Model Content

[0005] The purpose of this invention is to provide a monitoring device for foundation pits in building construction projects, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a foundation pit monitoring device for building engineering, comprising a base plate, a fixed cone, an adjusting mechanism, a horizontal plate, a level, a lifting mechanism, a protective mechanism, and a laser scanner. The fixed cone is symmetrically connected to the bottom surface of the base plate around its perimeter. The adjusting mechanism is symmetrically arranged above the base plate. The horizontal plate is arranged above the adjusting mechanism. The level is fixedly connected to the front of the horizontal plate. The lifting mechanism is arranged above the horizontal plate. The protective mechanism is arranged above the lifting mechanism. The laser scanner is arranged inside the protective mechanism.

[0007] It should be noted in the solution that the adjustment mechanism consists of a fixed plate, a lead screw, a throttle, a threaded cylinder, a slider, a rotating rod, and a connecting rod. The fixed plate is fixedly connected to the top of the base plate, the lead screw is rotatably connected to the upper right side of the fixed plate, the throttle is fixedly connected to the right end of the lead screw, the threaded cylinder is threadedly connected to the outside of the lead screw, and the slider is fixedly connected to the bottom of the threaded cylinder and slidably connected to the outside of the fixed plate.

[0008] It is worth noting that the rotating rod is symmetrically connected to the front and rear sides of the slider, the horizontal plate is rotatably connected above the rotating rod, one end of the connecting rod is rotatably connected between the rotating rods, and the other end of the connecting rod is rotatably connected to the upper left end of the fixed plate.

[0009] Furthermore, it should be noted that the lifting mechanism consists of an electric push rod, a top plate, a rotating shaft, a support rod, a limiting block, and rollers. The electric push rod is fixedly connected to the upper center of the horizontal plate, the top plate is fixedly connected to the extended end of the electric push rod, the rotating shaft is rotatably connected to the top of the top plate, and the support rod is symmetrically rotatably connected to the left and right sides of the top plate.

[0010] In a preferred embodiment, the limiting block is rotatably connected to one end of the support rod, the rollers are symmetrically fixedly connected to the front and rear sides of the limiting block, and the top surface of the horizontal plate is provided with a groove that matches the limiting block and the rollers.

[0011] In a preferred embodiment, the protective mechanism comprises a mounting plate, a protective cover, a connecting plate, a positioning block, a baffle, a spring, and a glass plate. The mounting plate is fixedly connected above the rotating shaft, the laser scanner is fixedly connected above the mounting plate, the protective cover is disposed outside the laser scanner, the glass plate is slidably connected to the front of the protective cover, and a through hole is provided on the back of the protective cover.

[0012] In a preferred embodiment, the connecting plate is symmetrically fixedly connected to the lower left and right sides of the protective cover, the mounting plate is provided with a connecting groove adapted to the connecting plate, the positioning block is slidably connected between the connecting groove and the outer wall of the mounting plate, and the baffle is fixedly connected to one end of the positioning block.

[0013] In a preferred embodiment, the spring is symmetrically fixed between the outer wall of the baffle and the mounting plate, the top surface of the positioning block has an arc-shaped surface, and the interior of the connecting plate has a positioning opening that matches the positioning block.

[0014] Compared with the prior art, the foundation pit monitoring device for building engineering provided by this utility model has at least the following beneficial effects:

[0015] (1) The horizontal plate can be adjusted at both ends through the adjustment mechanism to ensure the absolute horizontal accuracy of the laser scanner, making it easy to adjust the device at any position and angle, and improving the accuracy of laser scanner monitoring.

[0016] (2) By setting up a protective mechanism, the laser scanner is effectively protected without affecting its use, thus avoiding damage to the laser scanner and extending its service life. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a front view structural diagram of the present utility model;

[0019] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the lifting mechanism structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the disassembled structure of the protective mechanism of this utility model.

[0022] In the diagram: 1. Base plate; 2. Fixed cone; 3. Adjustment mechanism; 4. Horizontal plate; 5. Level; 6. Lifting mechanism; 7. Protective mechanism; 8. Laser scanner; 301. Fixed plate; 302. Lead screw; 303. Rotary handle; 304. Threaded cylinder; 305. Slider; 306. Rotating rod; 307. Connecting rod; 601. Electric push rod; 602. Top plate; 603. Rotating shaft; 604. Support rod; 605. Limiting block; 606. Roller; 701. Mounting plate; 702. Protective cover; 703. Connecting plate; 704. Positioning port; 705. Connecting through groove; 706. Positioning block; 707. Baffle; 708. Spring; 709. Glass plate; 710. Through hole. Detailed Implementation

[0023] The present invention will be further described below with reference to the embodiments.

[0024] Please see Figure 1-5This utility model provides a monitoring device for foundation pits in construction engineering, including a base plate 1, a fixed cone 2, an adjusting mechanism 3, a horizontal plate 4, a level 5, a lifting mechanism 6, a protective mechanism 7, and a laser scanner 8. The fixed cone 2 is symmetrically connected to the bottom surface of the base plate 1 around the perimeter. The adjusting mechanism 3 is symmetrically arranged above the base plate 1. The horizontal plate 4 is arranged above the adjusting mechanism 3. The level 5 is fixedly connected to the front of the horizontal plate 4. The lifting mechanism 6 is arranged above the horizontal plate 4. The protective mechanism 7 is arranged above the lifting mechanism 6. The laser scanner 8 is arranged inside the protective mechanism 7.

[0025] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the adjusting mechanism 3 consists of a fixed plate 301, a lead screw 302, a throttle 303, a threaded cylinder 304, a slider 305, a rotating rod 306, and a connecting rod 307. The fixed plate 301 is fixedly connected to the top of the base plate 1. The lead screw 302 is rotatably connected to the upper right side of the fixed plate 301. The throttle 303 is fixedly connected to the right end of the lead screw 302. The threaded cylinder 304 is threadedly connected to the outside of the lead screw 302. The slider 305 is fixedly connected to the bottom of the threaded cylinder 304 and is slidably connected to the outside of the fixed plate 301.

[0026] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the rotating rod 306 is symmetrically connected to the front and rear sides of the slider 305, the horizontal plate 4 is rotatably connected above the rotating rod 306, one end of the connecting rod 307 is rotatably connected between the rotating rods 306, and the other end of the connecting rod 307 is rotatably connected to the upper left end of the fixed plate 301.

[0027] When the horizontal plate 4 needs to be leveled, the handle 303 on one side is turned to drive the lead screw 302 to rotate, which in turn drives the slider 305 to slide through the threaded cylinder 304, thereby driving the two rotating rods 306 to rotate, which in turn drives one end of the upper horizontal plate 4 to adjust its height. The other side of the adjustment mechanism 3 is rotated to adjust the angle of the horizontal plate 4, thus completing the leveling operation of the level instrument 5.

[0028] As can be seen from the above working process, the horizontal plate 4 can be adjusted at both ends through the adjustment mechanism 3, ensuring the absolute horizontal accuracy of the laser scanner 8, facilitating the adjustment of the device at any position and angle, and improving the monitoring accuracy of the laser scanner 8.

[0029] Further as Figure 3 , Figure 4 and Figure 5As shown, it is worth noting that the lifting mechanism 6 consists of an electric push rod 601, a top plate 602, a rotating shaft 603, a support rod 604, a limiting block 605, and rollers 606. The electric push rod 601 is fixedly connected to the upper middle part of the horizontal plate 4, the top plate 602 is fixedly connected to the extended end of the electric push rod 601, the rotating shaft 603 is rotatably connected to the top of the top plate 602, the support rod 604 is symmetrically rotatably connected to the left and right sides of the top plate 602, the limiting block 605 is rotatably connected to one end of the support rod 604, and the rollers 606 are symmetrically fixedly connected to the front and rear sides of the limiting block 605. The top surface of the horizontal plate 4 has grooves that are compatible with the limiting block 605 and the rollers 606.

[0030] The roller 606 drives the limit block 605 to slide inside the groove, ensuring the smoothness and stability of the rotation of the support rod 604.

[0031] Further as Figure 3 , Figure 4 and Figure 5 As shown, it is worth noting that the protective mechanism 7 consists of a mounting plate 701, a protective cover 702, a connecting plate 703, a positioning block 706, a baffle 707, a spring 708, and a glass plate 709. The mounting plate 701 is fixedly connected to the top of the rotating shaft 603, the laser scanner 8 is fixedly connected to the top of the mounting plate 701, the protective cover 702 is disposed outside the laser scanner 8, the glass plate 709 is slidably connected to the front of the protective cover 702, and a through hole 710 is provided on the back of the protective cover 702.

[0032] The through-hole 710 facilitates monitoring operations by the laser head of the laser scanner 8; the transparent glass plate 709 facilitates real-time observation of the laser scanner 8, improving the practicality of the protective mechanism 7.

[0033] Further as Figure 3 , Figure 4 and Figure 5 As shown, it is worth noting that the connecting plate 703 is symmetrically fixedly connected to the lower left and right sides of the protective cover 702. The mounting plate 701 has a connecting groove 705 that matches the connecting plate 703. The positioning block 706 is slidably connected between the connecting groove 705 and the outer wall of the mounting plate 701. The baffle 707 is fixedly connected to one end of the positioning block 706. The spring 708 is symmetrically fixedly connected between the baffle 707 and the outer wall of the mounting plate 701. The top surface of the positioning block 706 has an arc-shaped surface. The interior of the connecting plate 703 has a positioning port 704 that matches the positioning block 706.

[0034] When the connecting plate 703 is installed into the connecting slot 705, the arc-shaped surface of the positioning block 706 is pressed, causing it to be retracted into one side of the connecting slot 705, without obstructing the connecting plate 703 from being fully inserted into the connecting slot 705. When the connecting plate 703 is fully inserted into the connecting slot 705, the baffle 707 is reset under the elastic action of the spring 708, causing the positioning block 706 to be inserted into the positioning port 704, thereby fixing the connection between the connecting plate 703 and the mounting plate 701 and ensuring the stability of the protective cover 702 above the mounting plate 701.

[0035] This solution has the following working process: First, the entire device is fixed inside the pit using the fixing cone 2. Then, the level 5 is observed and leveled using the adjustment mechanism 3. Rotating the handle 303 drives the lead screw 302 to rotate, which in turn drives the slider 305 to slide via the threaded cylinder 304, thereby rotating the two rotating rods 306. This adjusts the height of one end of the upper horizontal plate 4. The angle of the horizontal plate 4 is adjusted by rotating the other adjustment mechanism 3, completing the leveling operation of the level 5 and ensuring that the upper laser scanner 8 is horizontal. Then, according to actual usage requirements, the electric push rod 601 is controlled to raise and lower the top plate 602. The support rod 604 rotates, causing the limit block 605 and roller 606 to slide inside the groove, improving the stability of the top plate 602's raising and lowering until the laser scanner 8 is adjusted to the required height. The laser scanner 8 then monitors the pit. The protective cover 702 provides protection, improving the safety of the device.

[0036] In summary: The adjustment mechanism 3 allows for double-end adjustment of the horizontal plate 4, ensuring the absolute horizontal accuracy of the laser scanner 8. This facilitates adjustment of the device at any position and angle, improving the monitoring accuracy of the laser scanner 8. The protective mechanism 7 effectively protects the laser scanner 8 without affecting its use, preventing damage and extending its service life. The lifting mechanism 6 facilitates height adjustment of the laser scanner 8, avoiding the swaying problem of traditional lifting devices and simplifying monitoring.

Claims

1. A construction engineering foundation pit monitoring device, comprising a bottom plate (1), a fixing cone (2), an adjusting mechanism (3), a horizontal plate (4), a level (5), a lifting mechanism (6), a protection mechanism (7) and a laser scanner (8), characterized in that: The fixed cone (2) is symmetrically connected to the bottom surface of the base plate (1) around the perimeter. The adjustment mechanism (3) is symmetrically arranged above the base plate (1). The horizontal plate (4) is arranged above the adjustment mechanism (3). The level (5) is fixedly connected to the front of the horizontal plate (4). The lifting mechanism (6) is arranged above the horizontal plate (4). The protective mechanism (7) is arranged above the lifting mechanism (6). The laser scanner (8) is arranged inside the protective mechanism (7).

2. The building engineering foundation pit monitoring device according to claim 1, characterized in that: The adjustment mechanism (3) consists of a fixed plate (301), a lead screw (302), a throttle (303), a threaded cylinder (304), a slider (305), a rotating rod (306), and a connecting rod (307). The fixed plate (301) is fixedly connected to the top of the base plate (1). The lead screw (302) is rotatably connected to the upper right side of the fixed plate (301). The throttle (303) is fixedly connected to the right end of the lead screw (302). The threaded cylinder (304) is threadedly connected to the outside of the lead screw (302). The slider (305) is fixedly connected to the bottom of the threaded cylinder (304) and is slidably connected to the outside of the fixed plate (301).

3. A device for monitoring a building site excavation according to claim 2, characterised in that: The rotating rod (306) is symmetrically connected to the front and rear sides of the slider (305), the horizontal plate (4) is rotatably connected above the rotating rod (306), one end of the connecting rod (307) is rotatably connected between the rotating rods (306), and the other end of the connecting rod (307) is rotatably connected to the upper left end of the fixed plate (301).

4. The foundation pit monitoring device for building engineering according to claim 3, characterized in that: The lifting mechanism (6) consists of an electric push rod (601), a top plate (602), a rotating shaft (603), a support rod (604), a limiting block (605), and a roller (606). The electric push rod (601) is fixedly connected to the upper middle part of the horizontal plate (4). The top plate (602) is fixedly connected to the extended end of the electric push rod (601). The rotating shaft (603) is rotatably connected to the top of the top plate (602). The support rod (604) is symmetrically rotatably connected to the left and right sides of the top plate (602).

5. The foundation pit monitoring device for building engineering according to claim 4, characterized in that: The limiting block (605) is rotatably connected to one end of the support rod (604), and the roller (606) is symmetrically fixedly connected to the front and rear sides of the limiting block (605). The top surface of the horizontal plate (4) is provided with a groove that matches the limiting block (605) and the roller (606).

6. The foundation pit monitoring device for building engineering according to claim 5, characterized in that: The protective mechanism (7) consists of a mounting plate (701), a protective cover (702), a connecting plate (703), a positioning block (706), a baffle (707), a spring (708), and a glass plate (709). The mounting plate (701) is fixedly connected to the top of the rotating shaft (603). The laser scanner (8) is fixedly connected to the top of the mounting plate (701). The protective cover (702) is located outside the laser scanner (8). The glass plate (709) is slidably connected to the front of the protective cover (702). A through hole (710) is provided on the back of the protective cover (702).

7. A foundation pit monitoring device for building engineering according to claim 6, characterized in that: The connecting plate (703) is symmetrically fixedly connected to the lower left and right sides of the protective cover (702). The mounting plate (701) has a connecting groove (705) adapted to the connecting plate (703). The positioning block (706) is slidably connected between the connecting groove (705) and the outer wall of the mounting plate (701). The baffle (707) is fixedly connected to one end of the positioning block (706).

8. A foundation pit monitoring device for building engineering according to claim 7, characterized in that: The spring (708) is symmetrically fixed between the baffle (707) and the outer wall of the mounting plate (701). The top surface of the positioning block (706) is provided with an arc-shaped surface. The interior of the connecting plate (703) is provided with a positioning port (704) that is compatible with the positioning block (706).

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