Construction engineering foundation pit displacement measuring device

Abstract

The utility model relates to the technical field of foundation pit displacement measurement, and discloses a construction engineering foundation pit displacement measuring device which comprises a plurality of bearing plates parallel to the inner side wall of an excavated foundation pit, and a plurality of connecting plates parallel to the inner side wall of the excavated foundation pit are arranged on the faces, facing the excavated foundation pit, of the bearing plates. An abutting plate abutting against the inner side wall of the excavated foundation pit is arranged on one side of the connecting plate, a plurality of guide columns penetrating through the connecting plate are fixedly connected to one face of the abutting plate, the side faces of the guide columns are sleeved with elastic pieces with elasticity, and a plurality of first adjusting bolts penetrate through the connecting plate and are in threaded connection with the connecting plate; a sensing device used for monitoring is fixedly installed at the end, close to the abutting plate, of the first adjusting bolt. According to the foundation pit displacement measuring device, the abutting plate is sensed through the sensing device, the measuring devices are installed at different positions in the excavated foundation pit, displacement generated at the different positions in the excavated foundation pit can be measured, and the accuracy of construction project foundation pit displacement measurement is improved.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit displacement measurement technology, specifically a foundation pit displacement measurement device for construction projects. Background Technology

[0002] Foundation pit collapse is one of the most common safety accidents during construction projects. These accidents often result in significant casualties and economic losses, necessitating displacement measurements of the foundation pit to ensure its safety.

[0003] A search revealed a patent, CN217949176U, which discloses a foundation pit displacement measuring device for construction projects. The device includes a foundation, a horizontal plate on the foundation, a vertical plate in front of the foundation, a base on the horizontal plate, a housing on the base, a control box on one side of the housing, a protrusion on the housing, an extension block in front of the housing, a shaft inside the extension block, a baffle in front of the shaft, a fixing block inside the housing, a moving plate on the fixing block, a through hole on the moving plate, grooves on both sides of the through hole, a telescopic rod inside the grooves, a slider at the other end of the telescopic rod, and a pressure sensor in front of the fixing block. In this invention, the shaft is fixed inside the moving plate by teeth. When the foundation shifts, it pushes the vertical plate and the baffle forward, causing the moving plate to exert pressure on the pressure sensor. The pressure value is fed back to the control box, triggering an alarm via a buzzer.

[0004] The aforementioned patents have significant beneficial effects, but in practical application, they still have the following shortcomings:

[0005] The aforementioned comparative document monitors the vertical plate using a baffle. When displacement occurs at the edge of the pit, it pushes the vertical plate, which in turn moves the baffle, triggering a buzzer. However, in reality, construction pits vary in size, and larger pits often have poor inner wall flatness. When using the measuring device described in the comparative document, if displacement occurs at a point on the inner wall of the pit far from the baffle, the deformation of the vertical plate may not cause the baffle to move, resulting in inaccurate measurement data. Therefore, there is an urgent need in the field to improve the pit displacement measuring device to overcome the shortcomings of the existing technology. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a construction engineering foundation pit displacement measuring device, which improves the accuracy of foundation pit displacement measurement in construction engineering.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a construction engineering foundation pit displacement measuring device, comprising several bearing plates parallel to the inner wall of the excavated foundation pit, several connecting plates parallel to the inner wall of the excavated foundation pit on the side of the bearing plates facing the excavated foundation pit, an abutting plate abutting against the inner wall of the excavated foundation pit on one side of the connecting plate, several guide columns penetrating the connecting plate fixedly connected to one side of the abutting plate, elastic elements sleeved on the side of the guide columns, several first adjusting bolts penetrating and threadedly connected to the connecting plates, a sensing device for monitoring fixedly installed at the end of the first adjusting bolt near the abutting plate, and a first limiting nut for limiting the movement of the first adjusting bolt threadedly connected to the side of the first adjusting bolt.

[0008] Preferably, a plurality of cross-shaped adjustment seats are slidably connected on the bearing plate, and adjustment grooves for the adjustment seats are opened through the opposite sides of the bearing plate. A hollow column is fixedly connected to one side of the adjustment seat, and a second limiting nut for positioning the adjustment seat is threadedly connected to the side of the hollow column. The connecting plate is located on the side of the adjustment seat near the inner wall of the excavated pit.

[0009] Preferably, the adjusting seat is threadedly connected to a second adjusting bolt that passes through the hollow column and the adjusting seat, the connecting plate is disposed at one end of the second adjusting bolt, and the side of the second adjusting bolt is threadedly connected to a third limiting nut for limiting the second adjusting bolt.

[0010] Preferably, a main controller is provided on the upper part of the support plate, and the main controller is electrically connected to the sensing device.

[0011] Preferably, the main controller is equipped with an alarm device on its upper part, and the alarm device is electrically connected to the sensing device.

[0012] Preferably, the upper part of the bearing plate is provided with an upper fixing plug, one end of which is fixed to the upper part of the excavated pit.

[0013] Preferably, the adjustment groove extends through the upper part of the support plate, and the adjustment seat can slide out or slide into the upper part of the adjustment groove.

[0014] To address the shortcomings of existing technologies, this utility model provides a device for measuring the displacement of foundation pits in construction projects, overcoming the deficiencies of existing technologies. The beneficial effects of this utility model are as follows:

[0015] 1. In this utility model, the contact plate is sensed by a sensing device, and measuring devices are installed at different positions in the excavated foundation pit. The displacement generated at different positions in the excavated foundation pit can be measured, thereby improving the accuracy of foundation pit displacement measurement in construction projects.

[0016] 2. In this utility model, the position can be adjusted in the adjustment groove by means of the adjustment seat, which can measure the displacement at different heights in the excavated foundation pit, and the installation position of the bearing plate can be selected according to the actual situation, thereby improving the monitoring range of displacement measurement in the excavated foundation pit.

[0017] 3. In this utility model, the distance between the connecting plate and the contact plate and the inner wall of the excavated pit can be adjusted by the second adjusting bolt. When the flatness of the inner wall of the excavated pit in the height direction is poor, it can still be measured, thereby improving the applicability of the overall device.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of this utility model after several bearing plates are installed in the excavated foundation pit;

[0022] Figure 3 This is a cross-sectional view of the load-bearing plate after installation in this utility model;

[0023] Figure 4 This is a structural schematic diagram of the bearing plate in this utility model from another perspective;

[0024] Figure 5 This is a schematic diagram of the structure of the adjusting seat in this utility model;

[0025] Figure 6 This is an exploded structural diagram of the adjusting seat and connecting plate in this utility model.

[0026] In the diagram: 1. Bearing plate; 2. Excavated pit; 3. Connecting plate; 4. Contact plate; 5. Guide column; 6. Elastic element; 7. First adjusting bolt; 8. Sensing device; 9. First limit nut; 10. Adjusting seat; 11. Adjusting groove; 12. Hollow column; 13. Second limit nut; 14. Second adjusting bolt; 15. Third limit nut; 16. Main controller; 17. Alarm device; 18. Upper fixing plug. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-6 A construction project foundation pit displacement measuring device includes several bearing plates 1 parallel to the inner wall of the excavated foundation pit 2. Several connecting plates 3 parallel to the inner wall of the excavated foundation pit 2 are provided on the side of the bearing plates 1 facing the excavated foundation pit 2. An abutment plate 4 abutting against the inner wall of the excavated foundation pit 2 is provided on one side of the connecting plate 3. Several guide columns 5 penetrating the connecting plates 3 are fixedly connected to one side of the abutment plate 4. Elastic elements 6 with elasticity are sleeved on the side of the guide columns 5. Several first adjusting bolts 7 are threaded through and threaded onto the connecting plates 3. A sensing device 8 for monitoring is fixedly installed at the end of the first adjusting bolt 7 near the abutment plate 4. A first limiting nut 9 for limiting the movement of the first adjusting bolt 7 is threadedly connected to the side of the first adjusting bolt 7. A main controller 16 is provided on the upper part of the bearing plates 1, and the main controller 16 is electrically connected to the sensing device 8. An alarm device 17 is provided on the upper part of the main controller 16, and the alarm device 17 is electrically connected to the sensing device 8.

[0029] Specifically, the aforementioned sensing device 8 is a distance sensor in the prior art, including but not limited to optical displacement sensors, ultrasonic displacement sensors, or infrared pulse sensors. The sensing device 8 continuously monitors the distance between itself and the contact plate 4. The contact plate 4 is pressed against the inner wall of the excavated pit 2 by the elastic element 6, specifically a spring. The position of the sensing device 8 is adjusted by rotating the first adjusting bolt 7 to adjust the distance between the sensing device 8 and the contact plate 4 to the optimal distance. The first limiting nut 9 is then tightened to lock the position of the first adjusting bolt 7. When the inner wall of the excavated pit 2 shows signs of penetration into the excavated pit 2... In the event of displacement, the inner wall of the excavated pit 2 will push the contact plate 4 towards the bearing plate 1. The contact plate 4 moves towards the sensing device 8. The sensing device 8 senses the contact plate 4 and transmits the signal to the alarm device 17. The alarm device 17 is an audible and visual alarm. The alarm device 17 will sound an alarm. By installing measuring devices at different locations within the excavated pit 2, displacement at different locations within the excavated pit 2 can be measured, improving the accuracy of displacement measurement of the construction project pit. The main controller 16 is equipped with a chemical power source and a control motherboard for controlling the sensing device 8 and the alarm device 17. It is mainly used to control the sensing device 8 and the alarm device 17.

[0030] As a technical optimization of this utility model, a number of cross-shaped adjustment seats 10 are slidably connected on the bearing plate 1. The bearing plate 1 has adjustment grooves 11 adapted to the adjustment seats 10 through the opposite sides. A hollow column 12 is fixedly connected to one side of the adjustment seat 10. A second limiting nut 13 for positioning the adjustment seat 10 is threadedly connected to the side of the hollow column 12. The connecting plate 3 is located on the side of the adjustment seat 10 near the inner wall of the excavated pit 2.

[0031] Specifically, the positions of several contact plates 4 can be adjusted according to the height of the inner wall of the actual excavated pit 2. The position of the adjusting seat 10 is adjusted to a suitable position by sliding the adjusting seat 10 in the adjusting groove 11. Then, the second limiting nut 13 is threaded onto the side of the hollow column 12 and tightened. Since the adjusting seat 10 and the adjusting groove 11 are in a matching cross shape, the position of the adjusting seat 10 is fixed by locking the second limiting nut 13.

[0032] As a technical optimization of this utility model, the adjusting seat 10 is threadedly connected to a second adjusting bolt 14 that passes through the hollow column 12 and the adjusting seat 10. The connecting plate 3 is located at one end of the second adjusting bolt 14. The side of the second adjusting bolt 14 is threadedly connected to a third limiting nut 15 for limiting the second adjusting bolt 14.

[0033] Specifically, when installing the connecting plate 3, the second adjusting bolt 14 is threaded onto the hollow column 12 and the adjusting seat 10, and one end of the second adjusting bolt 14 is rotated beyond the side of the bearing plate 1. The elastic element 6 is sleeved on the side of the guide column 5. The guide column 5 on the side of the contact plate 4 passes through the connecting plate 3. The connecting plate 3 is threaded onto one end of the second adjusting bolt 14. The position of the connecting plate 3 can be adjusted by rotating the second adjusting bolt 14, and the position of the second adjusting bolt 14 is limited by locking the third limiting nut 15, which facilitates the connection, installation and position adjustment of the connecting plate 3. When the flatness of the inner wall of the excavated pit 2 is poor, the position of the contact plate 4 can be adjusted.

[0034] As a technical optimization of this utility model, the upper part of the bearing plate 1 is provided with an upper fixing plug 18. One end of the upper fixing plug 18 is fixed to the upper part of the excavated pit 2, and the lower end of the bearing plate 1 is inserted into the bottom position fixed in the excavated pit 2. At the same time, the upper fixing plug 18 is inserted into the upper position of the excavated pit 2. The insertion position of the upper fixing plug 18 is a safe position between it and the excavated pit 2, thereby improving the stability of the bearing plate 1 after it is fixed.

[0035] As a technical optimization of this utility model, the adjustment groove 11 penetrates the upper part of the bearing plate 1, and the adjustment seat 10 can slide out or slide in from the upper part of the adjustment groove 11. The adjustment seat 10 can be inserted or removed through the upper part of the adjustment groove 11. The number of contact plates 4 to be installed can be selected according to the height of the inner wall of the excavated pit 2. The entire device can be disassembled and assembled, which facilitates the installation or disassembly of the overall measuring device.

[0036] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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. Therefore, they should not be construed as limitations on this utility model.

[0037] 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 according to the specific circumstances.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A displacement measuring device for a construction pit, comprising a plurality of bearing plates (1) parallel to the inner wall of the excavated pit (2), characterized in that, The bearing plate (1) facing the excavated pit (2) has several connecting plates (3) parallel to the inner wall of the excavated pit (2). One side of the connecting plate (3) has an abutting plate (4) that abuts against the inner wall of the excavated pit (2). One side of the abutting plate (4) is fixedly connected to several guide posts (5) that penetrate the connecting plate (3). The side of the guide post (5) is fitted with an elastic element (6). Several first adjusting bolts (7) are threaded through and threaded onto the connecting plate (3). One end of the first adjusting bolt (7) near the abutting plate (4) is fixedly installed with a sensing device (8) for monitoring. The side of the first adjusting bolt (7) is threadedly connected with a first limiting nut (9) for limiting the first adjusting bolt (7).

2. The construction engineering foundation pit displacement measuring device according to claim 1, characterized in that, The support plate (1) is slidably connected with several cross-shaped adjustment seats (10). The support plate (1) has an adjustment groove (11) adapted to the adjustment seat (10) through the opposite side. A hollow column (12) is fixedly connected to one side of the adjustment seat (10). A second limiting nut (13) for positioning the adjustment seat (10) is threadedly connected to the side of the hollow column (12). The connecting plate (3) is located on the side of the adjustment seat (10) near the inner wall of the excavated pit (2).

3. The construction engineering foundation pit displacement measuring device according to claim 2, characterized in that, The adjusting seat (10) is threaded with a second adjusting bolt (14) that passes through the hollow column (12) and the adjusting seat (10). The connecting plate (3) is located at one end of the second adjusting bolt (14). The side of the second adjusting bolt (14) is threaded with a third limiting nut (15) for limiting the second adjusting bolt (14).

4. The construction engineering foundation pit displacement measuring device according to claim 1, characterized in that, The upper part of the support plate (1) is provided with a main controller (16), which is electrically connected to the sensing device (8).

5. A construction engineering foundation pit displacement measuring device according to claim 4, characterized in that, The main controller (16) is equipped with an alarm device (17) on its upper part, and the alarm device (17) is electrically connected to the sensing device (8).

6. The construction engineering foundation pit displacement measuring device according to claim 1, characterized in that, The upper part of the bearing plate (1) is provided with an upper fixing plug (18), and one end of the upper fixing plug (18) is fixed to the upper part of the excavated foundation pit (2).

7. A construction engineering foundation pit displacement measuring device according to claim 2, characterized in that, The adjustment groove (11) extends through the upper part of the support plate (1), and the adjustment seat (10) can slide out or slide in from the upper part of the adjustment groove (11).

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