Foundation pit settlement monitor

Abstract

The utility model discloses a foundation pit settlement monitor, belongs to the technical field of foundation pit settlement monitoring, and solves the problems of poor measurement precision and relatively weak reference value which are easily caused by the uneven condition of a foundation pit due to the fact that only a certain point position can be measured for a measurement position in the prior art. The device comprises a fixing frame and a horizontal supporting frame arranged on the fixing frame, wherein a multi-point measuring structure is arranged on the horizontal supporting frame; the multi-point measuring structure comprises a sliding rod arranged on the horizontal supporting frame in a sliding mode, a bottom plate which is arranged at the bottom of the sliding rod and makes contact with the bottom of the foundation pit, a plurality of through holes formed in the bottom plate, elastic reset structures which are arranged on the bottom plate and correspond to the positions of the through holes, and a mounting frame arranged on the horizontal supporting frame. And the distance measuring sensors are arranged on the mounting frame and correspond to the elastic reset structures arranged on the through holes. The foundation pit settlement monitoring device is used for foundation pit settlement monitoring.

Description

TECHNICAL FIELD

[0001] The utility model relates to a foundation pit settlement monitor for monitoring foundation pit settlement, belonging to the technical field of foundation pit settlement monitoring. BACKGROUND

[0002] The foundation pit settlement monitor is a device for monitoring the rock-soil properties, support structure displacement and surrounding environmental condition changes of a foundation pit during excavation and underground engineering construction. These monitoring is crucial for predicting the influence of construction on the surrounding environment, guiding design and construction and realizing information-based construction.

[0003] Modern foundation pit monitoring technology includes various automated devices and methods. For example, an automated monitoring system is usually composed of a sensing end, a collection end, a platform end and an application end, and can realize real-time data collection, denoising, calculation and remote sending. These systems utilize Internet of Things and cloud computing technology, provide efficient data information mining, timely grasp the engineering changes and development trend, greatly promote information-based construction, and guarantee engineering safety and economic benefits.

[0004] However, the foundation pit settlement monitor in the prior art has the following technical problems:

[0005] For the measurement position, only certain point positions can be measured, and since the foundation pit is uneven, the measurement accuracy is poor and the reference value is relatively weak. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at providing a foundation pit settlement monitor, solving the problem that the prior art can only measure certain point positions and the measurement accuracy is poor due to the unevenness of the foundation pit.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0008] A foundation pit settlement monitor comprises a fixing frame, a horizontal support frame arranged on the fixing frame, and a multi-point measurement structure arranged on the horizontal support frame.

[0009] The multi-point measurement structure comprises a sliding rod slidingly arranged on the horizontal support frame, a bottom plate arranged on the bottom of the sliding rod and in contact with the bottom of the foundation pit, a plurality of through holes arranged on the bottom plate, an elastic reset structure arranged on the bottom plate and corresponding to the positions of the through holes, a mounting frame arranged on the horizontal support frame, and a distance measuring sensor arranged on the mounting frame and corresponding to the elastic reset structures arranged on the through holes.

[0010] Further, the elastic reset structure comprises a plurality of inverted L-shaped support rods arranged around the through hole on the upper surface of the bottom plate, a limiting telescopic rod arranged on the inverted L-shaped support rod, a reset spring arranged on the inverted L-shaped support rod and sleeved on the limiting telescopic rod, and a measuring plate connected with the limiting telescopic rod and the reset spring and moving up and down along the through hole.

[0011] Further, the measuring plate is provided with a through hole, and a penetrating rod matched with the distance measuring sensor.

[0012] Further, the mounting frame comprises a mounting plate arranged on one side of the bottom of the horizontal support frame, a sliding hole through which the sliding rod passes is arranged on the mounting plate, and a protection plate for preventing rain from reaching the distance measuring sensor is arranged on the outer edge of the mounting plate and one side of the sliding hole.

[0013] The distance measuring sensor is arranged on one side of the bottom of the mounting plate.

[0014] Further, the horizontal support frame comprises two horizontally arranged horizontal rods, a connecting beam connecting the two horizontal rods, and a first connecting rod and a second connecting rod connected with a horizontal rod and the mounting plate respectively, and a sliding block is arranged on the first connecting rod and the second connecting rod.

[0015] The sliding rod is provided with a sliding groove matched with the sliding block.

[0016] Further, a screw is arranged on the bottom plate, and a screw hole matched with the screw is arranged on the bottom of the sliding rod.

[0017] Further, the horizontal support frame is rotatably arranged on the fixing frame.

[0018] Further, the fixing frame comprises a frame body, a table arranged on the frame body, a rotating shaft arranged on the table, a gear disc arranged on the rotating shaft, and a motor with a gear arranged on the table, the gear is matched with the gear disc, and the horizontal support frame is arranged on the gear disc.

[0019] Compared with the prior art, the advantages of the utility model are that:

[0020] Firstly, the distance measuring sensor arranged on the multi-point measuring structure is used to measure the distance of the elastic reset structure corresponding to each through hole, so that different points on the bottom of the foundation pit can be measured at the same time, and the monitored settlement data can be more accurately obtained, that is, for the measuring position, multi-point measurement around a certain point position can be realized, and for the uneven situation of the foundation pit, the precision measurement of each point can be realized by using the distance measuring sensor and the elastic reset structure, which is beneficial to subsequent settlement analysis.

[0021] The inverted L-shaped supporting rod in the elastic reset structure can provide stable support on the bottom plate surface, and the reset action of the telescopic rod and the reset spring arranged thereon can push the measuring plate through the through hole to the bottom plate, so that different positions of the concave-convex surface can push the measuring plate upward, and the distance between the measuring plate and the distance measuring sensor is measured to accurately obtain the settlement data of each position.

[0022] The measuring plate can effectively avoid the accumulation of mud, thereby avoiding the influence on measurement, and reducing the measurement error caused by external factors.

[0023] The installation plate is beneficial to the installation of the distance measuring sensor, and the distance measuring sensor can be protected from the influence of rainwater or other liquids by the protective plate, so that the sensor can work normally in harsh weather conditions, and the durability and reliability of the equipment are improved.

[0024] The two horizontally arranged horizontal rods and the connecting beam in the horizontal support frame constitute a stable frame structure, which can effectively resist external force and maintain the stability of the entire installation frame.

[0025] The screw rod is arranged on the bottom plate, and the screw hole matched with the screw rod is arranged at the bottom of the sliding rod, so that the bottom plate can be easily disassembled and installed.

[0026] The horizontal support frame is rotatably arranged on the fixed frame, so that after the fixed frame is fixed, the settlement of the foundation pit position to be monitored can be monitored according to the requirement. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0028] Figure 1 The structure of the present application is shown in the figure.

[0029] Figure 2 The structure of the present application is shown in the figure.

[0030] Figure 3 This is a schematic diagram of the horizontal support frame in this utility model;

[0031] Figure 4 This is a schematic diagram of the mounting bracket in this utility model;

[0032] Figure 5 This is a schematic diagram of the slide bar in this utility model;

[0033] Figure 6 This is a schematic diagram of the structure of the bottom plate of this utility model with an elastic reset structure.

[0034] Figure 7 This is a schematic diagram of the elastic reset structure in this utility model;

[0035] In the diagram: 1-Fixed frame, 2-Horizontal support frame, 3-Multi-point measurement structure, 4-Sliding rod, 5-Base plate, 6-Through hole, 7-Elastic reset structure, 8-Mounting frame, 9-Distance sensor, 10-Inverted L-shaped support rod, 11-Limiting telescopic rod, 12-Reset spring, 13-Measuring plate, 14-Through rod, 15-Mounting plate, 16-Sliding hole, 17-Protective plate, 18-Horizontal rod, 19-Connecting beam, 20-First connecting rod, 21-Second connecting rod, 22-Sliding block, 23-Sliding groove, 24-Screw rod, 25-Screw hole, 26-Frame, 27-Tabletop, 28-Rotating shaft, 29-Gear disk, 30-Gear, 31-Motor. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0038] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0039] Furthermore, the terms "first," "second," and "third" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance.

[0040] Furthermore, the use of terms such as "horizontal," "vertical," and "suspended" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0041] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0043] Example 1

[0044] To address the problem that existing technologies can only measure specific points, and that uneven terrain within the excavation pit leads to poor measurement accuracy and relatively weak reference value, this technology aims to address these issues. For example... Figures 1-7 As shown, a foundation pit settlement monitoring instrument is provided, including a fixed frame 1, a horizontal support frame 2 mounted on the fixed frame 1, and a multi-point measurement structure 3 mounted on the horizontal support frame 2; the multi-point measurement structure 3 includes a slide rod 4 slidably mounted on the horizontal support frame 2, a base plate 5 mounted on the bottom of the slide rod 4 in contact with the bottom of the foundation pit, multiple through holes 6 mounted on the base plate 5, and elastic reset structures 7 mounted on the base plate 5 corresponding to the positions of each through hole 6, a mounting frame 8 mounted on the horizontal support frame 2, and a distance measuring sensor 9 mounted on the mounting frame 8 corresponding to the elastic reset structures 7 mounted on each through hole.

[0045] In practice, the fixed frame 1 is installed on a non-settling surface, and the horizontal support frame 2 is installed on the fixed frame 1. After installation, the multi-point measurement structure 3 is installed on the horizontal support frame, with the base plate of the multi-point measurement structure 3 in contact with the ground, and the elastic reset structures 7 in contact with the ground at their corresponding positions. Simultaneously, it is necessary to ensure that the distance sensors 9 installed on the mounting frame 8 cooperate with the elastic reset structures at their corresponding through-hole positions to monitor the foundation pit settlement. This allows the data collected by the distance sensors 9 to be used for subsequent settlement analysis. This embodiment uses distance sensors on the multi-point measurement structure to measure the distance to the elastic reset structures corresponding to each through-hole. This not only allows for simultaneous measurement of different points at the bottom of the foundation pit but also enables more accurate acquisition of settlement data. Specifically, for a given measurement location, multi-point measurement around a specific point can be achieved. Furthermore, even in cases of uneven foundation pits, the cooperation between the distance sensors and the elastic reset structures allows for precise measurement of each point, facilitating subsequent settlement analysis.

[0046] Example 2

[0047] Based on Embodiment 1, the elastic reset structure 7 includes multiple inverted L-shaped support rods 10 arranged around the through hole 6 on the upper surface of the base plate 5, a limiting telescopic rod 11 arranged on the inverted L-shaped support rods 10, a reset spring 12 arranged on the inverted L-shaped support rods 10 and sleeved on the limiting telescopic rod 11, and a measuring plate 13 that moves up and down along the through hole 6 connected to the limiting telescopic rod 11 and the reset spring 12.

[0048] In practice, when the base plate contacts the ground at the bottom of the pit, different upward pushing forces can be applied to the measuring plate according to the height of each through-hole position. This compresses the limiting telescopic rod 11 and the return spring 12, allowing the measuring plate to be at different heights according to its unevenness, thus enabling the distance sensor to measure the distance between itself and the measuring plate. The distance sensor can be an ultrasonic sensor or an infrared sensor, etc., powered by a battery or an external power source. The collected data can be transmitted to the backend for viewing. In this embodiment, the inverted L-shaped support rod in the elastic reset structure provides stable support on the upper surface of the base plate, facilitating the push of the measuring plate through the through-holes below the base plate via the reset action of the telescopic rod and the return spring. This allows for different upward pushing of each measuring plate at different uneven locations, and the distance sensor measures the distance to the measuring plate to accurately obtain settlement data at each location.

[0049] Example 3

[0050] Based on Embodiment 2, the measuring plate 13 is provided with a through hole 6 and a through rod 14 that cooperates with the distance sensor 9. When the through rod is provided on the measuring plate, the distance sensor measures the distance between itself and the top of the through rod 14. In this embodiment, the through rod can effectively avoid the problem of soil accumulating on the measuring plate, thereby affecting the measurement, that is, reducing the measurement error caused by external factors.

[0051] Example 4

[0052] Based on embodiment 3, the mounting frame 8 includes a mounting plate 15 disposed on one side of the bottom of the horizontal support frame 2. The mounting plate 15 can be fixed by setting mounting holes B corresponding to mounting holes A on the horizontal support frame 2 and cooperating with bolts and nuts. Of course, it can also be directly welded to the horizontal support frame by welding. The mounting plate 15 is provided with sliding holes 16 for the sliding rod 4 to pass through, and a protective plate 17 disposed on the outer edge of the mounting plate 15 and one side of the sliding hole 16 to protect the distance measuring sensor 9 from rain. It can be transparent or not. The distance measuring sensor 9 is disposed on the bottom side of the mounting plate 15. The mounting plate in this embodiment facilitates the installation of the distance measuring sensor, and the protective plate can prevent the distance measuring sensor from being affected by rain or other liquids, ensuring that the sensor can work normally under harsh weather conditions, improving the durability and reliability of the equipment. And placing the distance measuring sensor on the bottom side of the mounting plate helps to accurately position the sensor and align it with the through rod on the measuring plate, thereby improving the accuracy of the measurement.

[0053] Example 5

[0054] Based on Embodiment 4, the horizontal support frame 2 includes two parallel horizontal rods 18, a connecting beam 19 connecting the two horizontal rods 18, and a first connecting rod 20 and a second connecting rod 21 respectively connected to one horizontal rod 18 and the mounting plate 15. Slider blocks 22 are provided on the first connecting rod 20 and the second connecting rod 21; the sliding rod 4 is provided with a groove 23 that cooperates with the slider 22. In this embodiment, the two parallel horizontal rods and the connecting beam in the horizontal support frame constitute a stable frame structure, which can effectively resist external forces and maintain the stability of the entire mounting frame. The sliders on the first and second connecting rods cooperate with the grooves on the sliding rod, allowing the sliding rod to slide down in a limited manner during settlement, facilitating accurate settlement data acquisition by the ranging sensor. Of course, in practice, the horizontal support frame 2 can also be of other structures. The sliding rod can be selected in different lengths according to application requirements.

[0055] Example 6

[0056] Based on embodiment 5, a screw 24 is provided on the base plate 5, and a screw hole 25 that mates with the screw 24 is provided at the bottom of the slide rod 4. The purpose of providing a screw on the base plate and a screw hole at the bottom of the slide rod to mate with the screw is to facilitate easy disassembly and installation of the base plate. In practice, the base plate can be installed at the bottom of the slide rod after the slide rod 2 mates with the slider.

[0057] Example 6

[0058] Based on Embodiment 5, the horizontal support frame 2 is rotatably mounted on the fixed frame 1. Rotating the horizontal support frame on the fixed frame facilitates settlement monitoring of the required pit location after the fixed frame is secured. The fixed frame 1 includes a frame body 26, a platform 27 mounted on the frame body 26, a rotating shaft 28 mounted on the platform 27, a gear disk 29 mounted on the rotating shaft 28, and a motor 31 with a gear 30 mounted on the platform 27. The gear 30 engages with the gear disk 29, and the horizontal support frame 2 is mounted on the gear disk 29. This can be achieved by welding or by using bolts with bolt holes. In practice, when the horizontal support frame needs to be rotated, the motor 31 rotates in either the forward or reverse direction, driving the gear 30 to rotate. The rotation of the gear 30 drives the gear disk 29 to rotate, which in turn drives the horizontal support frame to rotate.

Claims

1. A foundation pit settlement monitoring instrument, comprising a fixed frame (1) and a horizontal support frame (2) mounted on the fixed frame (1), characterized in that: A multi-point measuring structure (3) is provided on the horizontal support frame (2); The multi-point measurement structure (3) includes a slide rod (4) slidably mounted on a horizontal support frame (2), a base plate (5) mounted on the bottom of the slide rod (4) in contact with the bottom of the pit, multiple through holes (6) mounted on the base plate (5), an elastic reset structure (7) mounted on the base plate (5) and corresponding to each through hole (6), a mounting frame (8) mounted on the horizontal support frame (2), and a distance measuring sensor (9) mounted on the mounting frame (8) corresponding to the elastic reset structure (7) mounted on each through hole.

2. The foundation pit settlement monitoring instrument according to claim 1, characterized in that: The elastic reset structure (7) includes multiple inverted L-shaped support rods (10) arranged around the through hole (6) on the upper surface of the base plate (5), a limiting telescopic rod (11) arranged on the inverted L-shaped support rods (10), a reset spring (12) arranged on the inverted L-shaped support rods (10) and sleeved on the limiting telescopic rod (11), and a measuring plate (13) that moves up and down along the through hole (6) and is connected to the limiting telescopic rod (11) and the reset spring (12).

3. The foundation pit settlement monitoring instrument according to claim 2, characterized in that: The measuring plate (13) is provided with a through hole (6) and a through rod (14) that cooperates with the ranging sensor (9).

4. The foundation pit settlement monitoring instrument according to claim 3, characterized in that: The mounting frame (8) includes a mounting plate (15) set on one side of the bottom of the horizontal support frame (2), a sliding hole (16) for the sliding rod (4) to pass through, and a protective plate (17) set on the outer edge of the mounting plate (15) and one side of the sliding hole (16) to protect the distance sensor (9) from rain. The ranging sensor (9) is located on the bottom side of the mounting plate (15).

5. The foundation pit settlement monitoring instrument according to claim 4, characterized in that: The horizontal support frame (2) includes two parallel horizontal rods (18), a connecting beam (19) connecting the two horizontal rods (18), and a first connecting rod (20) and a second connecting rod (21) respectively connected to a horizontal rod (18) and a mounting plate (15). The first connecting rod (20) and the second connecting rod (21) are provided with sliders (22). The slide bar (4) is provided with a groove (23) that cooperates with the slider (22).

6. The foundation pit settlement monitoring instrument according to claim 5, characterized in that: The base plate (5) is provided with a screw (24), and the bottom of the slide bar (4) is provided with a screw hole (25) that cooperates with the screw (24).

7. A foundation pit settlement monitoring instrument according to any one of claims 1-6, characterized in that: The horizontal support frame (2) is rotatably mounted on the fixed frame (1).

8. The foundation pit settlement monitoring instrument according to claim 7, characterized in that: The fixed frame (1) includes a frame body (26), a platform (27) set on the frame body (26), a rotating shaft (28) set on the platform (27), a gear disk (29) set on the rotating shaft (28), and a motor (31) with gear (30) set on the platform (27). The gear (30) cooperates with the gear disk (29), and a horizontal support frame (2) is set on the gear disk (29).

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