An automatic multi-point monitoring device for deep foundation pit surface displacement

Abstract

The present application belongs to the technical field of foundation pit monitoring, and discloses an automatic multi-point monitoring device for surface displacement of a deep foundation pit, including a lifting support plate and a mounting plate arranged at one end of the lifting support plate, the side wall of the mounting plate is connected with a plurality of infrared ranging probes through two telescopic sleeves arranged symmetrically to each other, and also includes a rotating assembly arranged on the two telescopic sleeves for rotating the infrared ranging probes, the rotating assembly includes a rotating groove provided at one end of the telescopic sleeve away from the mounting plate, and each of the infrared ranging probes is arranged in an equiangular ring on the arc plate. The automatic multi-point monitoring device for surface displacement of a deep foundation pit in the present application can perform cyclic cross-type monitoring of the same measuring point, thereby providing multiple monitoring values ​​for the same measuring point, facilitating the judgment of the measurement results, and thus reducing the monitoring error caused by changes in external factors.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit monitoring, in particular to an automatic multi-point monitoring device for surface displacement of a deep foundation pit. Background Art

[0002] During the construction of deep foundation pits, by monitoring the surface displacement, the real-time data of the foundation pit displacement, settlement, etc. can be mastered at any time, so as to timely predict possible engineering hidden dangers and prevent them before they happen. In the actual monitoring process, multi-point monitoring will be used to comprehensively and accurately grasp the stress changes of the soil around the foundation pit, and it can also provide rich data support, which is conducive to the precise measurement and data analysis of the foundation pit displacement.

[0003] A Chinese utility model patent with publication number CN219568991U discloses an automatic multi-point monitoring device for surface displacement of a deep foundation pit. The supporting area of ​​the support plate can be adjusted by a supporting unit, the depth measured by the monitoring unit can be adjusted by adjusting the setting of the rod, and the direction of the monitoring unit can be adjusted by an angle adjustment unit to facilitate all-round monitoring of the foundation pit. After the adjustment is completed, the infrared ranging probe is placed on the first connecting plate as needed, so as to measure the vertical direction.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: since the infrared ranging probe is used outdoors, it is easily affected by temperature. There is a risk that the performance of the components inside the probe will change due to temperature changes, which will affect the accuracy of the ranging results. The infrared ranging probe has a single static alignment measurement point. When an abnormality occurs in the infrared ranging probe, the monitored value will become abnormal, making it difficult to judge the measurement result, thereby affecting the measurement accuracy. Utility Model Content

[0005] In order to solve the above problems, the utility model provides an automatic multi-point monitoring device for surface displacement of a deep foundation pit.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions: an automatic multi-point monitoring device for surface displacement of a deep foundation pit, comprising a lifting support plate and a mounting plate arranged at one end of the lifting support plate, wherein the side wall of the mounting plate is connected with a plurality of infrared ranging probes through two telescopic sleeves arranged symmetrically to each other, and further comprising a rotating assembly arranged on the two telescopic sleeves for rotating the infrared ranging probes;

[0007] The rotating assembly includes a rotating groove opened at one end of the telescopic sleeve away from the mounting plate, a rotating plate is connected to the rotating groove via a rotating shaft, an arc plate is fixedly connected to one end of the rotating plate, each of the infrared ranging probes is arranged in an equiangular ring on the arc plate, and the telescopic sleeve is provided with a cleaning assembly for cleaning the measuring end of each infrared ranging probe.

[0008] By adopting the above technical solution, multiple monitoring values ​​are provided for the same measuring point, which facilitates the judgment of the measurement results, thereby reducing the monitoring errors caused by changes in external factors.

[0009] Furthermore, a motor is provided on a side of the telescopic sleeve away from the lifting support plate, and an output end of the motor is connected to the rotating shaft.

[0010] By adopting the above technical solution, it is convenient to drive the arc plate to perform reciprocating rotation.

[0011] Furthermore, the cleaning assembly includes an installation frame fixedly connected to the side of the telescopic sleeve close to the lifting support plate, a rubber airbag is provided in the installation frame, an air inlet pipe is provided on the side of the rubber airbag away from the telescopic sleeve, an air outlet pipe is provided on the side of the rubber airbag close to the infrared ranging probe, the other end of the air outlet pipe passes through the installation frame and is connected to a universal ball head, a plurality of cleaning pipes are connected to one end of the universal ball head away from the air outlet pipe, a plurality of fixing plates are fixedly connected to the side of the arc plate close to the installation frame, and the other end of each of the cleaning tubes is connected to the fixing plate.

[0012] By adopting the above technical solution, the measuring end of the infrared ranging probe is cleaned.

[0013] Furthermore, one-way valves are respectively provided in the air inlet pipe and the air outlet pipe, and the conducting direction of the two one-way valves is from the outside of the air inlet pipe to the inside of the cleaning pipe.

[0014] By adopting the technical solution, the air injection and air suction operations of the rubber airbag are facilitated.

[0015] Furthermore, the mounting frame is provided with an extrusion assembly for extruding the rubber airbag, the extrusion assembly includes an extrusion plate slidably connected to the mounting frame, a telescopic assembly for extending and retracting the extrusion plate is provided in the mounting frame, a push plate is fixedly connected to the side of the extrusion plate away from the rubber airbag, and the telescopic sleeve is provided with a driving assembly for driving the push plate.

[0016] By adopting the above technical solution, the rubber airbag is reciprocatedly squeezed.

[0017] Furthermore, the driving assembly includes a driving ring arranged on the side of the telescopic sleeve close to the mounting frame, one end of the rotating shaft passes through the telescopic sleeve and is connected to the driving ring, and a plurality of triangular driving plates are fixedly connected to the side wall of the driving ring.

[0018] By adopting the above technical solution, the extrusion plate is driven to move reciprocally in the installation frame.

[0019] Furthermore, two side walls of each of the triangular driving plates opposite to the pushing plate have polished surfaces.

[0020] By adopting the above technical solution, the transmission efficiency after the inclined surface is squeezed is improved.

[0021] Furthermore, the telescopic assembly includes telescopic holes opened on two opposite side walls of the mounting frame, the two telescopic holes are fixedly connected with fixing rods, the side walls of the two fixing rods are slidably connected with telescopic plates, the opposite ends of the two telescopic plates are connected to the extrusion plate, the side walls of the two fixing rods are sleeved with springs, and the two ends of the two springs are respectively connected to the telescopic plate and the inner wall of the telescopic hole.

[0022] By adopting the above technical solution, a guiding and resetting function is provided for the movement of the extrusion plate.

[0023] In summary, the utility model has the following beneficial effects:

[0024] The automatic multi-point monitoring device for surface displacement of deep foundation pits in the present application can perform cyclic cross-type monitoring on the same measuring point in the process of realizing multi-point monitoring through the setting of a rotating component, thereby providing multiple monitoring values ​​for the same measuring point, facilitating the judgment of the measurement results, thereby reducing the monitoring error caused by changes in external factors, and further improving the accuracy of monitoring the surface displacement of deep foundation pits. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0026] Figure 2 It is a schematic diagram of the structure of the cleaning component of an embodiment of the utility model;

[0027] Figure 3 It is a schematic diagram of the structure of the driving component of an embodiment of the utility model;

[0028] Figure 4 yes Figure 3 A magnified schematic diagram of center A.

[0029] In the figure: 101, lifting support plate; 102, mounting plate; 103, telescopic sleeve plate; 104, infrared ranging probe; 201, rotating groove; 202, rotating shaft; 203, rotating plate; 204, arc plate; 205, motor; 301, mounting frame; 302, rubber airbag; 303, air inlet pipe; 304, air outlet pipe; 305, cleaning pipe; 306, fixing plate; 307, universal ball head; 501, extrusion plate; 502, pushing plate; 601, driving ring; 602, triangular driving plate; 701, telescopic hole; 702, fixing rod; 703, spring. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0031] Example 1

[0032] See also Figure 1-Figure 4 , an automatic multi-point monitoring device for surface displacement of a deep foundation pit shown in the figure comprises a lifting support plate 101 and a mounting plate 102 arranged at one end of the lifting support plate 101, a plurality of infrared ranging probes 104 are connected to the side wall of the mounting plate 102 through two telescopic sleeves 103 arranged symmetrically to each other, and also comprises a rotating assembly arranged on the two telescopic sleeves 103 for rotating the infrared ranging probes 104;

[0033] The rotating assembly includes a rotating groove 201 opened at one end of the telescopic sleeve 103 away from the mounting plate 102, a rotating plate 203 is connected to the rotating groove 201 through a rotating shaft 202, an arc plate 204 is fixedly connected to one end of the rotating plate 203, each infrared ranging probe 104 is arranged on the arc plate 204 in an equiangular ring shape, and the telescopic sleeve 103 is provided with a cleaning assembly for cleaning the measuring end of each infrared ranging probe 104;

[0034] It should be noted here that: through the setting of the rotating component, in the process of realizing multi-point monitoring, the same measuring point can be monitored in a cyclic and cross-type manner, thereby providing multiple monitoring values ​​for the same measuring point, which is convenient for judging the measurement results, thereby reducing the monitoring error caused by changes in external factors, thereby further improving the accuracy of surface displacement monitoring of deep foundation pits.

[0035] See also Figure 1 and Figure 2, a motor 205 is provided on the side of the telescopic sleeve 103 away from the lifting support plate 101, and the output end of the motor 205 is connected to the rotating shaft 202;

[0036] It should be noted here that: the motor 205 is provided to facilitate driving the arc plate 204 to perform reciprocating rotation.

[0037] Working principle: When performing multi-point monitoring of the surface displacement of a deep foundation pit, firstly, the measuring position of the infrared ranging probe 104 is adjusted using the lifting support plate 101 and the telescopic sleeve plate 103 according to the depth and width of the deep foundation pit;

[0038] After the infrared ranging probe 104 is adjusted to its measuring position, the infrared ranging probe 104 can be used to automatically monitor the surface displacement at multiple points. During the monitoring process, the motor 205 is started to drive the arc plate 204 on the rotating plate 203 to rotate, and further drive the infrared ranging probes 104 on the same side to rotate. Thus, during the rotation of multiple infrared ranging probes 104, cross-type monitoring of the measuring points is formed. In the process of realizing multi-point monitoring, the same measuring point can be monitored in a cyclic cross-type manner, thereby providing multiple monitoring values ​​for the same measuring point, which is convenient for judging the measurement results, thereby reducing the monitoring error caused by changes in external factors, and further improving the accuracy of surface displacement monitoring of deep foundation pits.

[0039] Example 2

[0040] See also Figure 4 , this embodiment further explains Example 1, the cleaning assembly in the figure includes a mounting frame 301 fixedly connected to the telescopic sleeve 103 on the side close to the lifting support plate 101, a rubber airbag 302 is arranged in the mounting frame 301, an air inlet pipe 303 is arranged on the side of the rubber airbag 302 away from the telescopic sleeve 103, an air outlet pipe 304 is arranged on the side of the rubber airbag 302 close to the infrared ranging probe 104, the other end of the air outlet pipe 304 penetrates the mounting frame 301 and is connected to a universal ball head 307, a plurality of cleaning pipes 305 are connected to one end of the universal ball head 307 away from the air outlet pipe 304, each cleaning pipe 305 is a corrugated pipe, a plurality of fixing plates 306 are fixedly connected to one side of the arc plate 204 close to the mounting frame 301, and the other end of each cleaning pipe 305 is connected to the fixing plate 306;

[0041] It should be noted here that: through the setting of the cleaning component, under the action of the extrusion component, the rubber airbag 302 is reciprocatingly squeezed, so that the external gas is reciprocatingly sucked into the rubber airbag 302, and blown to the measuring end of the infrared ranging probe 104 through each cleaning tube 305, so as to clean the measuring end of the infrared ranging probe 104, ensure the cleanliness of the measuring end of the infrared ranging probe 104, thereby avoiding the adhesion of external dust and affecting the measurement accuracy of the infrared ranging probe 104.

[0042] See also Figure 3 and Figure 4 In the figure, a one-way valve is provided in the air inlet pipe 303 and the air outlet pipe 304, respectively, and the conducting direction of the two one-way valves is from the outside of the air inlet pipe 303 to the inside of the cleaning pipe 305;

[0043] It should be noted here that the one-way valve is provided and the conducting direction is limited, so that the rubber airbag 302 can be easily injected and sucked.

[0044] See also Figure 3 and Figure 4 The installation frame 301 shown in the figure is provided with an extrusion assembly for extruding the rubber airbag 302, and the extrusion assembly includes an extrusion plate 501 slidably connected to the installation frame 301, and a telescopic assembly for telescoping the extrusion plate 501 is provided in the installation frame 301, and a push plate 502 is fixedly connected to the side of the extrusion plate 501 away from the rubber airbag 302, and the telescopic sleeve 103 is provided with a driving assembly for driving the push plate 502;

[0045] It should be noted here that: through the arrangement of the extrusion assembly, under the action of the driving assembly, the extrusion plate 501 is pushed to move reciprocatingly in the installation frame 301, thereby further reciprocatingly extruding the rubber airbag 302.

[0046] See also Figure 3 and Figure 4 The driving assembly shown in the figure includes a driving ring 601 disposed on the side of the telescopic sleeve 103 close to the mounting frame 301, one end of the rotating shaft 202 is disposed through the telescopic sleeve 103 and connected to the driving ring 601, and a plurality of triangular driving plates 602 are fixedly connected to the side wall of the driving ring 601;

[0047] It should be noted here that: through the setting of the driving component, in the process of the rotating shaft 202 driving the driving ring 601 to rotate, it will drive each triangular driving plate 602 to rotate, and further drive each triangular driving plate 602 to reciprocate against the pushing plate 502, so that under the interaction force and the guiding and resetting action of the telescopic component, the extrusion plate 501 is pushed to move reciprocally in the installation frame 301.

[0048] See also Figure 3 and Figure 4 , the two side walls of each triangular driving plate 602 opposite to the push plate 502 in the figure have polished surfaces;

[0049] It should be noted here that: by providing polished surfaces on the two side walls opposite to the triangular driving plate 602 and the pushing plate 502, the friction force is reduced and the transmission efficiency after the inclined surface is squeezed is improved.

[0050] See also Figure 3 and Figure 4 The telescopic assembly shown in the figure includes telescopic holes 701 opened on two opposite side walls of the installation frame 301, and the two telescopic holes 701 are fixedly connected with fixed rods 702, and the side walls of the two fixed rods 702 are slidably connected with telescopic plates, and the opposite ends of the two telescopic plates are connected to the extrusion plate 501, and the side walls of the two fixed rods 702 are sleeved with springs 703, and the two ends of the two springs 703 are respectively connected to the telescopic plate and the inner wall of the telescopic hole 701;

[0051] It should be noted here that: by setting the telescopic component, a guiding and resetting function is provided for the movement of the extrusion plate 501.

[0052] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An automatic multi-point monitoring device for surface displacement of a deep foundation pit, comprising: A lifting support plate (101) and a mounting plate (102) arranged at one end of the lifting support plate (101), wherein a side wall of the mounting plate (102) is connected to a plurality of infrared ranging probes (104) via two telescopic sleeve plates (103) arranged symmetrically to each other; Its characteristics include: A rotating assembly provided on the two telescopic sleeves (103) and used for rotating the infrared distance measuring probe (104); The rotating assembly comprises a rotating groove (201) provided at one end of the telescopic sleeve (103) away from the mounting plate (102); a rotating plate (203) is connected to the rotating groove (201) via a rotating shaft (202); an arc plate (204) is fixedly connected to one end of the rotating plate (203); each of the infrared ranging probes (104) is arranged on the arc plate (204) in an equiangular ring shape; and a cleaning assembly for cleaning the measuring end of each of the infrared ranging probes (104) is provided on the telescopic sleeve (103).

2. The automatic multi-point monitoring device for surface displacement of a deep foundation pit according to claim 1 is characterized in that: A motor (205) is provided on the side of the telescopic sleeve (103) away from the lifting support plate (101), and an output end of the motor (205) is connected to the rotating shaft (202).

3. The automatic multi-point monitoring device for surface displacement of a deep foundation pit according to claim 1 is characterized in that: The cleaning assembly comprises a mounting frame (301) fixedly connected to a side of the telescopic sleeve (103) close to the lifting support plate (101); a rubber airbag (302) is arranged in the mounting frame (301); an air inlet pipe (303) is arranged on a side of the rubber airbag (302) away from the telescopic sleeve (103); an air outlet pipe (304) is arranged on a side of the rubber airbag (302) close to the infrared ranging probe (104); the other end of the air outlet pipe (304) passes through the mounting frame (301) and is connected to a universal ball head (307); one end of the universal ball head (307) away from the air outlet pipe (304) is connected to a plurality of cleaning pipes (305); a side of the arc plate (204) close to the mounting frame (301) is fixedly connected to a plurality of fixing plates (306); the other end of each cleaning pipe (305) is connected to the fixing plate (306).

4. The automatic multi-point monitoring device for surface displacement of a deep foundation pit according to claim 3 is characterized by: One-way valves are respectively arranged in the air inlet pipe (303) and the air outlet pipe (304), and the conducting direction of the two one-way valves is from the outside of the air inlet pipe (303) to the inside of the cleaning pipe (305).

5. The automatic multi-point monitoring device for surface displacement of a deep foundation pit according to claim 3 is characterized by: The installation frame (301) is provided with an extrusion component for extruding the rubber airbag (302), the extrusion component comprising an extrusion plate (501) slidably connected to the installation frame (301), a telescopic component for extending and retracting the extrusion plate (501) is provided in the installation frame (301), a push plate (502) is fixedly connected to a side of the extrusion plate (501) away from the rubber airbag (302), and the telescopic sleeve plate (103) is provided with a driving component for driving the push plate (502).

6. The automatic multi-point monitoring device for surface displacement of a deep foundation pit according to claim 5 is characterized in that: The driving assembly comprises a driving ring (601) arranged on a side of the telescopic sleeve (103) close to the mounting frame (301); one end of the rotating shaft (202) passes through the telescopic sleeve (103) and is connected to the driving ring (601); and a plurality of triangular driving plates (602) are fixedly connected to the side wall of the driving ring (601).

7. The automatic multi-point monitoring device for surface displacement of a deep foundation pit according to claim 6 is characterized by: The two side walls of each of the triangular driving plates (602) opposite to the pushing plate (502) have polished surfaces.

8. The automatic multi-point monitoring device for surface displacement of a deep foundation pit according to claim 5 is characterized by: The telescopic assembly comprises telescopic holes (701) opened on two opposite side walls of the installation frame (301), the two telescopic holes (701) are fixedly connected with fixed rods (702), the side walls of the two fixed rods (702) are slidably connected with telescopic plates, the opposite ends of the two telescopic plates are connected to the extrusion plate (501), the side walls of the two fixed rods (702) are sleeved with springs (703), and the two ends of the two springs (703) are respectively connected to the telescopic plates and the inner walls of the telescopic holes (701).

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