CN216448882U

CN216448882U - Automatic foundation pit inclination measuring device

Info

Publication number: CN216448882U
Application number: CN202123097155.6U
Authority: CN
Inventors: 岳奇峰; 陈耀; 安居正; 李汉彬; 宋佳琪
Original assignee: China Jiliang University
Current assignee: China Jiliang University
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-05-06
Anticipated expiration: 2031-12-10

Abstract

The utility model discloses an automatic foundation pit inclination measuring device which comprises a frame structure, an inclination measuring sensor, a control circuit box and a storage battery. The frame structure comprises a mechanical frame, a cable track structure, a cable control and winding and unwinding device and a probe measuring track angle switching device. The inclination measuring sensor comprises an inclination measuring sensor probe and a connecting cable. The control circuit box controls the cable control and winding and unwinding device and the probe rod measurement track angle switching device, cooperates with the inclinometer sensor probe rod to ascend and descend along an inclinometer pipeline to sample soil layer parameters, the inclinometer sensor probe rod uploads measured data to the control circuit box, and the control circuit box uploads the data information to the cloud side so as to obtain the inclination of the foundation pit to be measured. The utility model can obviously reduce the workload of detection workers in an actual engineering field and reduce the low precision brought by artificial measurement. Not only saves human resources, but also reduces engineering risks, and has more obvious effect.

Description

Automatic foundation pit inclination measuring device

Technical Field

The utility model belongs to the technical field of building construction detection, and particularly relates to an automatic foundation pit inclination measuring device.

Background

The foundation pit is a deep pit usually from several meters to over ten meters, which is common in modern building construction sites. The foundation is used for bearing the foundation of a high-rise building, so that the building is more stable, and irreplaceable important effects are achieved on building safety. Because of its unique importance, construction is usually preceded by construction. Along with the development of city construction, high-rise buildings are more and more, in order to meet the requirements of civil air defense engineering and garages, basements are more and more constructed, the construction of the following foundation pit engineering is more and more, the excavation depth of the foundation pit is more and more, and the depth of the existing foundation pit mostly exceeds 10 meters. Due to the complexity of underground soil properties, load conditions and construction environments, the design and construction scheme is determined according to geological survey data and indoor geotechnical test parameters, many uncertain factors are always included, monitoring of soil properties, environments, adjacent buildings and underground facility changes caused in the construction process becomes an essential important link for engineering construction, and meanwhile, the method is a necessary measure for avoiding accidents by guiding correct construction, and is an information technology. At present, foundation pit monitoring and engineering design and construction are listed as three basic elements for guaranteeing deep foundation pit engineering quality. Therefore, relevant law stipulates that construction units need to measure the inclination of the foundation pit at regular time so as to guarantee construction safety.

At present, the mode used in large quantity is manual inclination measurement, namely manual measurement and reading by using a movable inclinometer. Workers need to record readings every 1 meter, so that the whole test work is time-consuming and labor-consuming, the data continuity is poor, the acquisition and analysis period is long, the interference of the site environment is large, and the construction cannot be guided in time. In addition, when the inclinometer pipe deforms too much, the movable inclinometer probe is easy to block. Particularly, the defects are obvious in medium and large construction sites with more foundation pits. After field investigation, the surveyor of the actual construction site really has the requirement of automatically monitoring the inclination of the foundation pit.

Disclosure of Invention

In order to solve the problems mentioned in the background, the utility model aims to provide an intelligent device capable of automatically measuring the inclination of a foundation pit, automatically analyzing and observing the measured data in real time, getting rid of the dependence of the traditional inclinometer on manpower, and solving the problem that the existing foundation pit inclination measuring device cannot automatically measure the inclination.

The utility model comprises a frame structure, an inclination measuring sensor, a control circuit box and a storage battery.

The frame structure comprises a mechanical frame, a waterproof outer cover, a bottom support, a cable track structure, a cable control and take-up and pay-off device and a probe measuring track angle switching device;

the inclination measuring sensor comprises an inclination measuring sensor probe and a connecting cable thereof;

the mechanical frame is of a cuboid peripheral structure and is used for supporting the whole device and protecting an internal circuit and a storage battery; the waterproof outer cover is arranged on the outer side of the mechanical frame and is fixed with the bottom bracket; the bottom support is an I-shaped aluminum profile support, and the central part of the bottom support is provided with a channel for holding a preset inclination measuring pipeline;

the cable track structure is fixed on an extension rod on one side above the mechanical frame, and the cable control and take-up and pay-off device is positioned in the mechanical frame, is positioned on the same side with the cable track structure and is fixed with the mechanical frame; the connecting cable is led out from the cable control and retraction device and then is connected with the inclination measuring sensor probe through a cable track structure;

the storage battery is assembled in the mechanical frame and is arranged on the other side of the cable control and take-up and pay-off device, and the storage battery is detachable and supplies power to the device and balances the balance weight of the device;

the control circuit box is assembled and arranged on the outer side surface of the waterproof cover of the device body and comprises a main control unit, a power supply management unit, a repeater unit, a transceiver unit and a display module;

the cable control and winding and unwinding device comprises a rotary control winding device and a rotary motor; the rotary control winding device is fixed with the mechanical frame by utilizing side frames at two sides and is used for accommodating connecting cables; the rotating motor is arranged on the side edge and used for controlling the rotation of the rotating control winding device to enable the cable to be retracted or lowered;

the switching device for the angle of the track measured by the probe comprises a rotating motor, a cylindrical track structure device, a belt and a square fixing piece; the upper end and the lower end of the cylindrical track structure device are fixed with the mechanical frame through square fixing pieces, the cylindrical hollow body is used for allowing a probe rod of the inclinometer to pass through, and the side edge of the cylindrical hollow body is provided with a rotating motor which controls the cylindrical track structure device to rotate through a belt.

Furthermore, the cable track structure is fixedly provided with two wire clamping rollers on the extension rod for positioning the telescopic path of the connecting cable; the two sides of the top end of each extension rod are fixedly provided with a bridge fixing piece, a cable pulley is arranged between the two bridge fixing pieces, and the outer sides of the two bridge fixing pieces are fixedly provided with frame rods.

Furthermore, a cable guide wheel device is arranged between the two frame rods, and the cable guide wheel device is formed by clamping three pulleys between two triangular fixing pieces.

Furthermore, the control circuit box is connected with the probe measuring track angle switching device and controls the rotating motor to rotate through the main control unit.

Furthermore, when a rotating motor of the probe measurement track angle switching device rotates, the belt drives the cylindrical track structure device where the inclinometer sensor probe is located to rotate 180 degrees, and the 180-degree rotation of the inclinometer sensor probe is achieved.

The utility model has the beneficial effects that: the utility model can obviously reduce the workload of detection workers in an actual engineering field, and reduce the low precision brought by artificial measurement. Not only reduces the manpower resource, but also reduces the engineering risk, and has more obvious effect.

Drawings

Fig. 1 is a schematic view of an overall frame of the automatic foundation pit inclination measuring apparatus;

FIG. 2 is a schematic view of a bottom bracket of the automatic foundation pit inclination measuring device fixed on an inclinometer pipe;

FIG. 3 is a schematic view of the connection between the mechanical frame, the waterproof housing and the bottom bracket of the automatic foundation pit inclination measuring device;

FIG. 4 is a bottom bracket overhead view of the automatic foundation pit inclination measuring device;

FIG. 5 is a schematic view of a waterproof housing of the automatic foundation pit inclination measuring device;

FIG. 6 is a schematic view of a probe measuring track angle switching device of the automatic foundation pit inclination measuring device;

FIG. 7 is a schematic view of a probe measuring track angle switching device and a mechanical frame fixing part of the automatic foundation pit inclination measuring device;

FIG. 8 is a schematic view of the connection between the frame rod and the frame structure of the automatic foundation pit inclination measuring device;

FIG. 9 is a schematic view of a cable guide roller assembly on a mast of the automatic pit inclination measuring apparatus;

FIG. 10 is a top view of the cable control and retraction device of the automatic foundation pit inclination measuring device;

fig. 11 is a schematic cross-sectional view of a sensor probe of the automatic foundation pit inclination measuring apparatus as it enters an inclinometer pipe.

In the figure: 11. a machine frame; 12. a waterproof outer cover; 13. a bottom bracket; 14. a cable track structure; 15. a cable control and take-up device; 16. the probe measures the angle switching device of the orbit; 111. Leveling screws; 112. a storage battery; 113. an extension rod; 114. a wire clamping roller; 115. a fixing member; 116. a bridge frame fixing member; 117. a cable pulley; 118. a frame bar; 119. a triangular fixing member; 1191. a first pulley; 1192. a second pulley; 1193. a third pulley; 1194. an extension spring; 1111. a lower nut; 131. pipe clamping of the inclinometer pipeline; 151. a side frame; 152. a rectangular hole; 153. rotating the motor; 154. rotating the control winding device; 161. a rotating electric machine; 162. a cylindrical rail structure device; 163. a square fixing member; 164. a screw hole; 165. a belt; 21. a inclinometer sensor probe; 211. connecting a cable; 212. a probe pulley; 31. an inclinometer duct; 311. and a guide groove.

Detailed Description

The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.

As shown in fig. 1 to 11, the present invention provides an automatic foundation pit inclination measuring apparatus, which includes a frame structure, an inclination measuring sensor probe 21 and its connecting cable, a control circuit box and a storage battery 112.

The frame structure comprises a mechanical frame 11, a waterproof outer cover 12, a bottom support 13, a cable track structure 14, a cable control and retraction device 15 and a probe measurement track angle switching device 16. The probe measuring track angle switching device 16 is fixed with the machine frame 11 through 8 screw holes 164 at the upper and lower ends of the cylindrical track structure device 162 by screws. The cable track structure 14 is fixed to an extension rod 113 on the upper side of the machine frame 11 by screws. The cable control and retraction device 15 is located inside the machine frame 11, on the same side as the cable track structure 14, and is also fixed to the machine frame 11 by screws. The connecting cable 211 is led out from the rotation control winding device 154, passes through two wire clamping rollers 114 at fixed positions of the cable track structure 14 upwards, then passes through tracks determined by a first pulley 1191, a second pulley 1192 and a third pulley 1193, and is connected with the inclination measuring sensor probe 21.

The inclinometer sensor probe 21 and the matched connecting cable 211 adopt the same sensor probe as a common artificial foundation pit inclinometer sold in the market, and can be replaced by different types of sensor probes according to the field condition. The common probe in the market is CH-CX pulley type probe, other types of probes can be adapted, and the same type of cable is adopted for the matched probe. If the probe or the cable is damaged in the using process, the probe or the cable can be replaced.

The control circuit box comprises a main control unit, a power management unit, a repeater unit and a transceiver unit; the control circuit box is assembled on the outer side surface of the waterproof outer cover 12 of the device, and the upper surface of the control circuit box is also provided with a man-machine interaction screen for setting parameters for man-machine interaction and reading data information on site.

The main control unit of the control circuit box comprises an STM32 series single chip microcomputer microprocessor, a clock circuit, a motor driving module, a reset circuit, an initial position reset circuit and a power management unit, wherein the STM32 series single chip microcomputer microprocessor receives and processes signals transmitted by the clock circuit, then controls a motor to run through the motor driving module, controls a sensor probe to advance through rotating a winch and controls a motor of a measuring angle switching structure to rotate, so that the angle of the sensor probe is changed to measure, the STM32 series single chip microcomputer microprocessor synchronously controls an inclination measuring unit through resetting of the reset circuit, the initial position reset circuit transmits a reset signal of a probe of an inclination measuring sensor device, which is acquired, reaching an initial position to the STM32 series single chip microcomputer microprocessor, and the voltage acquisition module of the power management module transmits a power supply voltage value acquired by sampling to the STM32 series single chip microcomputer microprocessor, STM32 series single chip microcomputer microprocessor processes the received data and then sends the processed data to the 4G module of the transceiver unit through the repeater unit for network uploading, and finally the data can be seen in the internet terminal equipment.

The mechanical frame 11 of the frame structure is a peripheral structure for supporting the whole equipment and protecting the internal circuit and the storage battery. The mechanical frame material is an aluminum profile in a cuboid shape, the size of the frame is 350 x 500mm, and the weight of the frame (including cables) is 20-30 kg. The center of gravity of the device is adjusted, so that the tube body is positioned at the center of gravity of the device and is more stable.

The waterproof outer cover 12 is installed on the outer side of the mechanical frame 11, is 550 × 550mm in size, is mainly fixed with the bottom support 13, is fixed at four corners through four leveling screws 111 between the waterproof outer cover and the bottom support, and serves as a leveling device of the device at the same time, so that the placement angle of the device can be adjusted conveniently during installation. A channel for cables and inclinometer sensor probes is reserved in the center of the bottom of the waterproof outer cover 12.

As shown in fig. 2, 3 and 4, the leveling screws 111 used for connecting the machine frame 11, the waterproof housing 12 and the bottom bracket 13 are manually screwed screws, and serve as leveling devices while fixing the three. Both ends are fixed to the frame structure 11 and the bottom bracket 13, respectively, and the lower waterproof cover 12 and the bottom bracket 13 are separated on the same side by the lower nut 1111, and the waterproof cover 12 and the bottom bracket 13 are tightly attached to each other, thereby being fixed. The bottom support 13 is an approximately I-shaped aluminum section support, a channel is reserved at the central part of the bottom support for cables and sensor probes, the channel is used for tightly holding a preset inclination measuring pipeline 31, the inclination measuring pipeline is tightly screwed and clamped by hand-screwed screws, a basic plane is determined, and then leveling installation is carried out on the basis.

As shown in fig. 6 and 7, the cylindrical rail structure device 162 of the probe measurement rail angle switching device 16 is sleeved with a square fixing member 163 having a circular hole at the center, and four corners of the fixing member are respectively provided with a screw hole 164, and the fixing member is fixed to the machine frame 11 through the screw holes 164 by screws, so that the square fixing member 163 is fixed, and at the same time, the support and the fixation are provided for the cylindrical rail structure device 162, so that the probe measurement rail structure device is ensured to be stable and not to generate lateral or longitudinal displacement when the measurement angle of the inclinometer sensor probe 21 is changed. Similarly, as shown in fig. 6, the lower portion of the cylindrical track structure device 162 also has a similar square fixing member, which is fixed by a screw at each of four corners, and functions to fix the cylindrical track structure device 162, so as to keep it stable and not to generate lateral displacement during rotation.

The change of the measurement angle of the inclinometer sensor probe is realized through the probe measurement track angle switching device 16, the rotating motor 161 arranged on the left side rotates, the belt 165 is used for driving the cylindrical track structure device 162 where the inclinometer sensor probe 21 is located to rotate 180 degrees, and the 180-degree rotation of the inclinometer sensor probe can be realized so as to perform the next inclinometry.

As shown in fig. 1 and 8, a fixing member 115 is disposed on the extension rod 113 at one side above the mechanical frame 11 and close to the inner side of the inclinometer body, the middle of the fixing member is welded and fixed to the extension rod 113 at the side, and screw holes are respectively reserved at two ends of the fixing member for fixing two wire clamping rollers 114, and the fixing member is used for positioning the telescopic path of the connection cable 211 of the sensor probe, and meanwhile, the wire clamping rollers 114 can also protect the cable, thereby preventing the cable from being damaged by friction at the turning point. A gap is left between the two rollers for passing through the connection cable 211 of the sensor probe. In turn, as shown in fig. 8, two bridge fixing members 116 are fixed on two sides of the extension rod 113, the bridge fixing members are fixed to the extension rod 113 by welding, a screw hole is reserved on one side of the bridge fixing member 116 close to the inner side of the automatic inclination measuring device body, a cable pulley 117 is arranged between the two bridge fixing members and used as a guide rail of a connecting cable 211 of the sensor probe to extend and retract along the fixing direction, and two support rods 118 of the cable track structure 14 are also fixed on the outer sides of the two bridge fixing members 116 by screws. The two bridge fixing members 116 are fixed to the cable pulley 117 and the outer frame rod 118 by hand screws. The manual screw fixation is adopted, so that the position of the cable pulley 117 can be fixed, the angle of the hack lever 118 of the cable track structure 14 can be conveniently adjusted, and the telescopic angle and the path of the cable can be conveniently adjusted.

A cable guide device composed of three pulleys and two triangular fixing pieces 119 with approximate triangular shapes is assembled between the two rods 118 sequentially upward along the extension rod 113, and as shown in fig. 9, the three pulleys are clamped between the two triangular fixing pieces 119. And a third pulley 1193 is fixed between the two racks and used as a rotating shaft to ensure that the cable has a certain moving interval during movement. The first pulley 1191 and the second pulley 1192 form a cable track for passing a cable therebetween, and the second pulley 1192 is connected with the triangular fixing member 119 by a tension spring 1194, so that the cable track has certain mobility and fault tolerance and can be better protected.

As shown in fig. 1 and 10, the cable control and retraction device 15 is located inside the machine frame 11, the rotation control winding device 154 is fixed to the machine frame 11 by means of a side frame 151 through screws, and for a detachable design, a rectangular hole 152 is formed right above the device and serves as a track for the connection cable 211 of the sensor probe. A rotating motor 153 is arranged at the side of the cable control and winding and unwinding device 15, and the rotation of the winding device 154 can be controlled through control to enable the cable to be retracted or unwound.

As shown in fig. 1, the storage battery 112 is divided into two parts, is assembled on the other side of the cable control and retraction device 15 relative to the probe measurement track angle switching device 16, is designed to be detachable, and is used for supplying power to the equipment and balancing the balance weight of the equipment. The control circuit box can be arranged at the upper end of the outer side of the waterproof outer cover 12 and fixed with the waterproof outer cover through screws, a wire hole is reserved on the contact surface, and the edge is subjected to waterproof treatment.

The working process of the utility model is as follows:

the first step is as follows: the bottom bracket 13 is first fixed to the inclinometer duct 31, and the inclinometer duct clamp 131 is fixed thereto, as shown in fig. 2. The fixing method comprises the following steps: the inclinometer pipe clamping pipe 131 at the center of the bottom bracket 13 is clamped at the periphery of the inclinometer pipe 31, and then hand-screwed screws on the side surfaces are screwed and fixed, so that the function of fixing the position is achieved.

And secondly, adjusting the leveling screws 111 to ensure that the inclination measuring device body is kept stable at the bottom bracket 13, and preventing the measured data from being subjected to errors or instrument damage due to collapse and inclination in the operation process of the device.

Thirdly, the inclinometer sensor probe 21 and the connecting cable 211 are installed in the mechanical frame 11, the inclinometer sensor probe 21 is manually placed into the inclinometer pipeline 31 when the inclinometer sensor probe is used for the first time, the schematic cross section when the inclinometer sensor probe is placed is shown in fig. 11, the probe pulleys 212 on two sides of the inclinometer sensor probe 21 are placed into the guide grooves 311 on the inner wall of the inclinometer pipeline, and the probe is pulled up and down by hands, so that the probe can freely slide in the inclinometer pipeline, namely the probe is successfully placed.

Fourthly, installing the storage battery 112 and closing the waterproof outer cover; and starting the machine, and setting the inclination measuring parameters, the measuring time and the like on the man-machine interaction screen, namely starting to use. After the automatic foundation pit inclination measuring device is used, the automatic foundation pit inclination measuring device automatically operates to lower the inclination measuring sensor probe rod 21, and when the inclination measuring sensor probe rod 21 to be measured moves to the bottom of the approach inclination measuring pipeline 31, the upward pulling operation is carried out. And in the process of pulling up, pause measurement is carried out at intervals of 1 meter, the inclination angle of the guide axis of the inclinometer pipeline relative to the plumb line is measured in sections by taking 1 meter as a step length, at the moment, the automatic foundation pit inclination measuring device records the measurement data and calculates the horizontal displacement value of each section of corresponding soil body according to the length and the inclination angle of the sections until the inclinometer sensor probe 21 is completely pulled out of the inclinometer pipeline 31. After the operation is finished, the automatic foundation pit inclination measuring device automatically rotates the inclinometer sensor probe 21 by 180 degrees along the axis of the inclinometer pipeline and then puts the inclinometer pipeline 31 into the guide slot 311, the two guide slots used for the operation are still the guide slots used for the operation, the inclinometer sensor probe is put to the bottom of the inclinometer pipeline again, then the operation of pulling up is carried out, and the measurement is stopped every 1 meter during the operation, and data is recorded. And finally, taking out the sensor probe to finish one measurement.

And fifthly, watching the measured and sorted data at the mobile phone terminal or the computer webpage terminal, remotely changing the set parameters, measuring at regular time, checking the electric quantity of the equipment and replacing the battery in time.

The automatic foundation pit inclination measuring device collects data and transmits the data to the cloud server through the 4G network, and the cloud server communicates with the user side to obtain the soil condition of the foundation pit monitoring point where the inclination measuring pipeline is located, so that the foundation pit soil data are measured.

The above is only one embodiment of the present invention, and is not intended to limit the present invention, it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

To sum up, the automatic foundation pit inclination measuring device of the embodiment is simple in operation, can replace manual detection, improves detection efficiency, reduces risks in the detection process, is favorable for subsequent engineering construction, and is worth being popularized.

Claims

1. The utility model provides an automatic foundation ditch slope measuring device, includes frame construction, deviational survey sensor, control circuit case and battery, its characterized in that:

2. An automatic foundation pit inclination measuring device according to claim 1, characterized in that:

the cable track structure is fixedly provided with two wire clamping rollers on an extension rod and used for positioning a telescopic path of a connecting cable; the two sides of the top end of each extension rod are fixedly provided with a bridge fixing piece, a cable pulley is arranged between the two bridge fixing pieces, and the outer sides of the two bridge fixing pieces are fixedly provided with frame rods.

3. An automatic foundation pit inclination measuring device according to claim 2, characterized in that:

and a cable guide wheel device is arranged between the two frame rods and is formed by clamping three pulleys between two triangular fixing pieces.

4. The automatic foundation pit inclination measuring device of claim 1, characterized in that:

the control circuit box is connected with the probe measuring track angle switching device and controls the rotating motor to rotate through the main control unit.

5. An automatic foundation pit inclination measuring device according to claim 4, characterized in that:

when a rotating motor of the probe measuring track angle switching device rotates, the belt drives the cylindrical track structure device where the inclinometer sensor probe is located to rotate 180 degrees, and 180-degree rotation of the inclinometer sensor probe is achieved.