Foundation pit support displacement monitoring device

Abstract

The utility model discloses a foundation pit support displacement monitoring device, and belongs to the technical field of foundation pit support monitoring. Comprising a monitoring point prism, a mounting sleeve and a telescopic rod fixed to the mounting sleeve, the monitoring point prism is sleeved with a protective shell with the two ends being of an opening structure, the telescopic rod and the protective shell are freely and rotatably connected, and liftable transparent plates are slidably inserted into openings in the two ends of the protective shell; the monitoring point prism is fixed in the protective shell, light is transmitted through the openings in the two ends, after the mounting sleeve is mounted on the steel bar, rotation and inclination angle adjustment of the monitoring point prism are facilitated through free rotation adjustment of the protective shell and the telescopic rod, and the monitoring point prism can be adjusted through lifting adjustment of the transparent plates at the two ends of the protective shell. The transparent plate at the opening end of the protective shell is replaced and cleaned, so that the cleanness of the monitoring point prism is guaranteed, and the normal use of the monitoring point prism is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of foundation pit support monitoring, and more specifically, to a foundation pit support displacement monitoring device. Background Art

[0002] During construction, a foundation pit needs to be dug on the ground. As the soil in the foundation pit is excavated, the soil on the side walls of the foundation pit tends to move toward the inside of the foundation pit. It is necessary to monitor the horizontal deformation of the soil to determine the safety and stability of the support structure and reduce potential safety hazards. A foundation pit displacement monitoring device for construction project supervision is disclosed in Chinese Patent Publication No. CN214993918U. During use, the above-mentioned device cannot synchronously adjust the height and horizontal angle of the prism at the monitoring point according to the on-site conditions. The lighting process is relatively troublesome and inconvenient to use.

[0003] The document with prior art publication number CN 219080354 U provides a foundation pit support displacement monitoring device. The device is equipped with a screw and a threaded ring on a mounting seat. The horizontal angle of the monitoring point prism can be adjusted by simply rotating the threaded ring, which drives the monitoring point prism to rotate through the screw. On the basis of rotating the threaded ring, the screw is grasped and the rotation of the screw is limited to adjust the height of the monitoring point prism, making the monitoring point prism alignment process more convenient and quick, and the alignment adjustment structure is simple.

[0004] Although the above-mentioned existing technical solutions can achieve the relevant beneficial effects through the structure of the existing technology, there are still the following defects: due to the different bending degrees of the steel bars, when the installation sleeve is fixed to the steel bars, the monitoring point prism will be tilted to varying degrees, and when the tilt angle is greater than the maximum deflection angle, it will cause the problem of being unable to align the light. At the same time, after the monitoring point prism is installed, the installation environment is mostly in a construction state, so the surrounding environment is relatively dusty, and when the dust covers the surface of the monitoring point prism, it will affect the normal use of the monitoring point prism, thereby affecting normal monitoring.

[0005] In view of this, we propose a foundation pit support displacement monitoring device. Utility Model Content

[0006] 1. Technical problems to be solved

[0007] The purpose of this application is to provide a foundation pit support displacement monitoring device, which solves the technical problems in the above-mentioned background technology, realizes the multi-angle adjustment of the monitoring point prism, and ensures the technical effect of cleaning the monitoring point prism.

[0008] 2. Technical solution

[0009] The technical solution of the present application provides a foundation pit support displacement monitoring device, including a monitoring point prism, a mounting sleeve, and a telescopic rod fixed on the mounting sleeve. The outer sleeve of the monitoring point prism is provided with a protective shell with open structures at both ends. The telescopic rod is freely rotatably connected to the protective shell, and a liftable transparent plate is slidably inserted into the openings at both ends of the protective shell.

[0010] By adopting the above technical solution, the monitoring point prism is fixed inside the protective shell and light is transmitted through the openings at both ends. After the mounting sleeve is installed on the steel bar, the protective shell and the telescopic rod are freely rotated and adjusted to adjust the rotation and tilt angle of the monitoring point prism, and the transparent plates at both ends of the protective shell are raised and lowered to replace and clean the transparent plates at the open ends of the protective shell to ensure the cleanliness of the monitoring point prism and the normal use of the monitoring point prism.

[0011] As an optional solution to the technical solution of this application document, a ball is fixedly installed on the outer wall of the protective shell, a ball seat adapted to the ball is fixedly installed on the upper end of the telescopic rod, and a locking screw that is threadedly connected to the ball seat is against the ball.

[0012] By adopting the above technical solution, the ball seat is welded into two pieces, and the upper end opening of the ball seat is smaller than the outer diameter of the ball to prevent the ball from detaching from the ball seat. By rotating the ball on the ball seat, the prism of the monitoring point can be rotated and adjusted, and the pitch angle of the prism of the monitoring point can be adjusted by rotating the ball up and down. Finally, the ball and the ball seat are fixed by the locking screw.

[0013] As an optional solution to the technical solution of this application document, mounting holes are vertically opened on both open sides of the protective shell, the transparent plate is adapted to the mounting holes, and a rag is fixedly installed on the inner wall of the mounting hole.

[0014] By adopting the above technical solution, the transparent plate is vertically slid into the mounting hole, and the rag is attached to the inner and outer walls of the transparent plate. When the transparent plate is raised or lowered, the inner and outer walls of the transparent plate can be cleaned by the rag to ensure the transmittance of the transparent plate.

[0015] As an optional solution to the technical solution of this application document, a connecting plate is vertically fixedly installed on the upper ends of the two transparent plates, a screw is threadedly connected to the connecting plate, and the screw is transmission-connected to a servo motor.

[0016] As an optional solution to the technical solution of this application document, a protective cover for covering the transparent plate is fixedly installed on the protective shell.

[0017] By adopting the above technical solution, the servo motor is fixed on the protective cover, the screw rod is arranged vertically and the upper end is fixed coaxially with the output shaft of the servo motor, so that when the servo motor drives the screw rod to rotate clockwise, the connecting plate pulls the transparent plate to move upward, and when the servo motor drives the screw rod to rotate counterclockwise, the connecting plate pushes the transparent plate to move downward, so that cleaning can be carried out by the transparent plate moving up and down without affecting the normal use of the prism at the monitoring point. At the same time, under the protection of the protective cover, the transparent plate can be placed in the protective cover, which can slow down the aging of the transparent plate and avoid secondary contamination of the transparent plate.

[0018] 3. Beneficial effects

[0019] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0020] 1. In this application, the monitoring point prism is fixed inside the protective shell and light is transmitted through the openings at both ends. After the mounting sleeve is installed on the steel bar, the protective shell and the telescopic rod are freely rotated and adjusted to adjust the rotation and tilt angle of the monitoring point prism, and the transparent plates at both ends of the protective shell are raised and lowered to replace and clean the transparent plates at the open ends of the protective shell to ensure the cleanliness of the monitoring point prism and the normal use of the monitoring point prism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a foundation pit support displacement monitoring device disclosed in a preferred embodiment of the present application;

[0022] Figure 2 This is a schematic diagram of the overall cross-section structure of a foundation pit support displacement monitoring device disclosed in a preferred embodiment of the present application;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of a protective shell of a foundation pit support displacement monitoring device disclosed in a preferred embodiment of the present application;

[0024] Figure 4 A foundation pit support displacement monitoring device disclosed in a preferred embodiment of this application Figure 3 A in the middle is an enlarged structural diagram;

[0025] Figure 5 This is a schematic diagram of the transparent plate structure of a foundation pit support displacement monitoring device disclosed in a preferred embodiment of the present application;

[0026] Explanation of the numbers in the figure: 1. Mounting sleeve; 2. Telescopic rod; 3. Ball seat; 301. Locking screw; 302. Sphere; 4. Monitoring point prism; 5. Protective shell; 501. Mounting hole; 502. Rag; 6. Transparent plate; 601. Connecting plate; 602. Screw; 603. Servo motor; 7. Protective cover. DETAILED DESCRIPTION

[0027] The present application is further described in detail below with reference to the accompanying drawings.

[0028] A foundation pit support displacement monitoring device includes a monitoring point prism 4, a mounting sleeve 1, and a telescopic rod 2 fixed to the mounting sleeve 1. The monitoring point prism 4 is externally sleeved with a protective shell 5 with open structures at both ends. The telescopic rod 2 is freely rotatably connected to the protective shell 5. A liftable transparent plate 6 is slidably inserted into the openings at both ends of the protective shell 5.

[0029] Reference Figure 1-Figure 5 The monitoring point prism 4 is fixed inside the protective shell 5 and is light-transmitting through the openings at both ends. After the mounting sleeve 1 is installed on the steel bar, the protective shell 5 and the telescopic rod 2 are freely rotated to adjust the rotation and tilt angle of the monitoring point prism 4, and the transparent plates 6 at both ends of the protective shell 5 are raised and lowered to replace and clean the transparent plates 6 at the open ends of the protective shell 5 to ensure the cleanliness of the monitoring point prism 4 and the normal use of the monitoring point prism 4.

[0030] A ball 302 is fixedly mounted on the outer wall of the protective shell 5 , a ball seat 3 adapted to the ball 302 is fixedly mounted on the upper end of the telescopic rod 2 , and a locking screw 301 that abuts against the ball 302 is threadedly connected to the ball seat 3 .

[0031] Reference Figure 1 The ball seat 3 is welded in two pieces, and the upper end opening of the ball seat 3 is smaller than the outer diameter of the ball 302 to prevent the ball 302 from detaching from the ball seat 3. By rotating the ball 302 on the ball seat 3, the monitoring point prism 4 can be rotated and adjusted. By rotating the ball 302 in the up and down directions, the pitch angle of the monitoring point prism 4 can be adjusted. Finally, the ball 302 and the ball seat 3 are fixed by the locking screw 301.

[0032] Mounting holes 501 are vertically opened on both open sides of the protective shell 5 , and the transparent plate 6 is adapted to the mounting holes 501 . A rag 502 is fixedly mounted on the inner wall of the mounting hole 501 .

[0033] Reference Figure 3 and Figure 4 The transparent plate 6 is vertically slid into the mounting hole 501, and the rag 502 is attached to the inner and outer walls of the transparent plate 6, so that when the transparent plate 6 is raised or lowered, the inner and outer walls of the transparent plate 6 can be cleaned by the rag 502 to ensure the transmittance of the transparent plate 6.

[0034] A connecting plate 601 is vertically fixedly mounted on the upper ends of the two transparent plates 6 , a screw rod 602 is threadedly connected to the connecting plate 601 , and the screw rod 602 is transmission-connected to a servo motor 603 .

[0035] A protective cover 7 for covering the transparent plate 6 is fixedly mounted on the protective shell 5 .

[0036] Reference Figure 2 The servo motor 603 is fixed on the protective cover 7, the screw rod 602 is arranged vertically and the upper end is fixed coaxially with the output shaft of the servo motor 603, so that when the servo motor 603 drives the screw rod 602 to rotate clockwise, the connecting plate 601 pulls the transparent plate 6 to move upward, and when the servo motor 603 drives the screw rod 602 to rotate counterclockwise, the connecting plate 601 pushes the transparent plate 6 to move downward, so as to clean the transparent plate 6 by moving up and down, and does not affect the normal use of the monitoring point prism 4. At the same time, under the protection of the protective cover 7, the transparent plate 6 can be placed in the protective cover 7, which can slow down the aging of the transparent plate 6 and avoid secondary contamination of the transparent plate 6.

[0037] Working principle: The mounting sleeve 1 is installed on the steel bar, and the height of the monitoring point prism 4 is adjusted by the telescopic rod 2. The monitoring point prism 4 can be rotated and adjusted by rotating the ball 302 on the ball seat 3. The pitch angle of the monitoring point prism 4 can be adjusted by rotating the ball 302 in the up and down directions. When the transparent plate 6 corresponding to the protective shell 5 is blurred, the servo motor 603 drives the screw rod 602 to rotate, and the screw rod 602 drives the connecting plate 601 to rise and fall, so that the inner and outer walls of the transparent plate 6 can be cleaned by the rag 502.

Claims

1. A foundation pit support displacement monitoring device, comprising a monitoring point prism (4), a mounting sleeve (1), and a telescopic rod (2) fixed on the mounting sleeve (1), characterized in that: The monitoring point prism (4) is externally covered with a protective shell (5) with openings at both ends; the telescopic rod (2) is freely rotatably connected to the protective shell (5); and the openings at both ends of the protective shell (5) are slidably inserted with a liftable transparent plate (6).

2. A foundation pit support displacement monitoring device according to claim 1, characterized in that: A spherical ball (302) is fixedly mounted on the outer wall of the protective shell (5), a spherical seat (3) adapted to the spherical ball (302) is fixedly mounted on the upper end of the telescopic rod (2), and a locking screw (301) abutting against the spherical ball (302) is threadedly connected to the spherical seat (3).

3. A foundation pit support displacement monitoring device according to claim 1, characterized in that: Both opening sides of the protective shell (5) are vertically provided with mounting holes (501), the transparent plate (6) is adapted to the mounting holes (501), and a rag (502) is fixedly mounted on the inner wall of the mounting hole (501).

4. The foundation pit support displacement monitoring device according to claim 1, characterized in that: A connecting plate (601) is vertically fixedly mounted on the upper ends of the two transparent plates (6), a screw rod (602) is threadedly connected to the connecting plate (601), and the screw rod (602) is drivingly connected to a servo motor (603).

5. The foundation pit support displacement monitoring device according to claim 1, characterized in that: A protective cover (7) for covering the transparent plate (6) is fixedly mounted on the protective shell (5).

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