CN216448882U - An automatic foundation pit inclination measuring device - Google Patents

Abstract

The utility model discloses an automatic foundation pit inclination measuring device, which comprises a frame structure, an inclination sensor, a control circuit box and a storage battery. The frame structure includes a mechanical frame, a cable track structure, a cable control and retractable device, and a probe measuring track angle switching device. The inclination sensor includes an inclination sensor probe rod and a connecting cable. The control circuit box controls the cable control and retracting device, the probe measuring track angle switching device, and cooperates with the inclination sensor probe to move up and down along the inclination pipeline to sample soil layer parameters, and the inclination sensor probe uploads the measured data to the The control circuit box uploads the data information to the cloud to obtain the measured foundation pit slope. The utility model can obviously reduce the workload of the inspection workers in the actual engineering site, and reduce the artificial measurement and bring about low precision. It not only saves human resources, but also reduces engineering risks, which has a more obvious effect.

Description

An automatic foundation pit inclination measuring device

technical field

The utility model belongs to the field of building construction technology detection, in particular to an automatic foundation pit inclination measuring device.

Background technique

Foundation pits are commonly found in modern building construction sites, and are generally deep pits ranging from a few meters to more than ten meters. Its function is to undertake the foundation of high-rise buildings, make the building more stable, and play an irreplaceable role in building safety. Due to its unique importance, it is usually built first when construction takes place. With the development of urban construction, there are more and more high-rise buildings. In order to meet the needs of civil air defense projects and garages, more and more basements are constructed, and more and more foundation pit works are followed. The excavation depth It is also getting bigger and bigger, and most of the current foundation pits are more than 10 meters deep. Due to the complexity of underground soil properties, load conditions, and construction environment, the design and construction plans are determined solely based on geological survey data and indoor geotechnical test parameters, which often contain many uncertain factors. The monitoring of changes in the environment, adjacent buildings, and underground facilities has become an indispensable and important part of engineering construction. At present, foundation pit monitoring and engineering design and construction are listed as the three basic elements of deep foundation pit engineering quality assurance. Therefore, relevant laws stipulate that construction units need to measure the slope of the foundation pit regularly to ensure construction safety.

At present, the most widely used method is manual inclinometer measurement, that is, manual measurement and reading using an active inclinometer. Workers need to record readings every 1 meter, which results in time-consuming and labor-intensive testing, poor data continuity, long acquisition and analysis cycles, great interference from the on-site environment, and inability to guide construction in time. In addition, when the deformation of the inclinometer tube is too large, the movable inclinometer probe is prone to jam. Especially in medium and large construction sites with a large number of foundation pits, the shortcomings are particularly obvious. After on-the-spot investigation, it was learned that the survey workers on the actual site did have the need to automatically monitor the slope of the foundation pit.

SUMMARY OF THE INVENTION

In order to solve the problems mentioned in the above background, the purpose of this utility model is to provide an intelligent device that can automatically measure the inclination of the foundation pit, and realize automatic analysis and real-time observation of the measurement data, and get rid of the artificial inclination of the traditional inclinometer. Dependence, 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 sensor, a control circuit box and a storage battery.

The frame structure includes a mechanical frame, a waterproof cover, a bottom bracket, a cable track structure, a cable control and retractable device, and a probe measuring track angle switching device;

The inclination sensor includes an inclination sensor probe and a connecting cable thereof;

The mechanical frame is a cuboid peripheral structure, which is used to support the overall device and protect the internal circuit and battery; the waterproof cover is installed on the outside of the mechanical frame and is fixed with the bottom bracket; the bottom bracket is an I-shaped aluminum profile bracket, The central part has a channel for the inclination sensor probe, which is used to hold the preset inclination pipeline;

The cable track structure is fixed on the extension rod on the upper side of the mechanical frame, and the cable control and retraction device is located inside the mechanical frame, on the same side as the cable track structure, and both are fixed to the mechanical frame; the connection After the cable is drawn out from the cable control and retractable device, it is connected with the probe of the inclination sensor through the cable track structure;

The battery is assembled in the mechanical frame on the other side of the cable control and retractable device, and adopts a detachable type to supply power to the device and balance the counterweight of the device;

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

The cable control and retraction device includes a rotation control winding device and a rotating motor; the rotation control winding device is fixed with the mechanical frame by the side frames on both sides, and is used for the storage of connecting cables; the rotation The motor is installed on the side to control the rotation of the rotation control winding device, so that the cable can be retracted or lowered;

The probe measuring track angle switching device includes a rotating motor, a cylindrical track structure device, a belt, and a square fixing member; the upper and lower ends of the cylindrical track structure device are fixed to the mechanical frame by the square fixing member, and the cylindrical hollow is used for the mechanical frame. The probe rod of the inclination sensor passes through, and a rotary motor is arranged on the side, and the rotary motor controls the rotation of the cylindrical track structure device through the belt.

Further, the cable track structure is fixed with two wire clamping rollers on the extension rod, which are used to locate the telescopic path of the connecting cable; bridge fixing parts are fixed on both sides of the top of the extension rod, and between the two bridge fixing parts A cable pulley is provided, and a frame rod is fixed on the outer side of the two bridge frame fixing pieces.

Further, a cable guide wheel device is arranged between the two frame rods, and the cable guide wheel device is composed of three pulleys sandwiched between two triangular fixed pieces.

Further, the control circuit box is connected with the probe measuring track angle switching device, and the rotation of the rotating motor is controlled by the main control unit.

Furthermore, when the rotating motor of the probe measuring track angle switching device rotates, the belt drives the cylindrical track structure device where the inclination sensor probe is located to rotate 180 degrees, so as to realize the 180-degree rotation of the inclination sensor probe itself.

The beneficial effects of the utility model are: the utility model can obviously reduce the workload of the inspection workers in the actual engineering site, and reduce the artificial measurement and bring about low precision. It not only saves human resources, but also reduces engineering risks, which has a more obvious effect.

Description of drawings

Fig. 1 is the overall frame schematic diagram of described automatic foundation pit inclination measuring device;

Fig. 2 is the schematic diagram that the bottom bracket of described automatic foundation pit inclination measuring device is fixed on the inclination measuring pipeline;

3 is a schematic diagram of the connection between the mechanical frame, the waterproof cover and the bottom bracket of the automatic foundation pit inclination measuring device;

Fig. 4 is the bottom bracket bird's-eye view of described automatic foundation pit inclination measuring device;

5 is a schematic diagram of a waterproof housing of the automatic foundation pit inclination measuring device;

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

7 is a schematic diagram of a probe rod measurement track angle switching device and a mechanical frame fixing part of the automatic foundation pit inclination measurement device;

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

9 is a schematic diagram of the cable guide wheel device on the frame rod of the automatic foundation pit inclination measuring device;

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

Fig. 11 is a schematic cross-sectional view of the sensor probe of the automatic foundation pit inclination measurement device entering the inclinometer pipeline.

In the picture: 11. Mechanical frame; 12. Waterproof cover; 13. Bottom bracket; 14. Cable track structure; 15. Cable control and retractable device; 16. Probe measuring track angle switching device; 111. Leveling screw ; 112, battery; 113, extension rod; 114, wire clamping roller; 115, fixing part; 116, bridge frame fixing part; 117, cable pulley; 118, frame rod; 119, triangle fixing part; 1191, first pulley; 1192, the second pulley; 1193, the third pulley; 1194, the tension spring; 1111, the lower nut; 131, the inclination pipe clamp; 151, the side frame; 152, the rectangular hole; 153, the rotating motor; 154, Rotation control winding device; 161, rotary motor; 162, cylindrical track structure device; 163, square fixing part; 164, screw hole; 165, belt; 21, inclination sensor probe; 211, connecting cable; 212, Probe pulley; 31. Inclination pipeline; 311. Guide groove.

Detailed ways

The embodiments of the present utility model are described in detail below. The present embodiment is implemented on the premise of the technical solution of the present utility model, and provides detailed implementation methods and specific operation processes, but the protection scope of the present utility model is not limited to the following described embodiment.

As shown in FIG. 1 to FIG. 11 , the present invention provides an automatic foundation pit inclination measurement device, including a frame structure, an inclination sensor probe 21 and its connecting cable, a control circuit box and a battery 112 .

The frame structure includes a mechanical frame 11 , a waterproof cover 12 , a bottom bracket 13 , a cable track structure 14 , a cable control and retractable device 15 , and a probe measuring track angle switching device 16 . The probe measuring track angle switching device 16 is fixed to the mechanical frame 11 with screws through eight screw holes 164 at the upper and lower ends of the cylindrical track structure device 162 . The cable track structure 14 is fixed on the extension rod 113 on the upper side of the mechanical frame 11 by screws. The cable control and retractable device 15 is located inside the mechanical frame 11 , on the same side as the cable track structure 14 , and is also fixed to the mechanical frame 11 by screws. The connecting cable 211 is drawn out from the rotation control winding device 154, passes upwards through the two fixed position clamping rollers 114 of the cable track structure 14, and then extends through the first pulley 1191, the second pulley 1192 and the third pulley 1193 After the determined track, the inclination sensor probe 21 is connected.

The inclinometer sensor probe 21 and its supporting connection cable 211 are the same sensor probe as the common artificial foundation pit inclinometer sold in the market, and can also be replaced with different types of sensor probes according to site conditions. The most common type on the market is the CH-CX pulley probe, other types of probes can also be adapted, and the same type of probe cable is also used. If the probe or cable is damaged during use, it can also be replaced.

The control circuit box includes 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 of the waterproof housing 12 of the device, and a human-computer interaction screen is also installed on the upper surface of the control circuit box for use. Human-computer interaction to set parameters and read data information on site.

The main control unit of the control circuit box includes a STM32 series single-chip microprocessor, a clock circuit, a motor drive module, a reset circuit, a starting position reset circuit, and a power management unit including a voltage acquisition module. The STM32 series single-chip microprocessor accepts And process the signal transmitted by the clock circuit, and then control the operation of the motor through the motor drive module, so as to control the movement of the sensor probe by rotating the hoist, and control the rotation of the motor of the measurement angle switching structure, so as to change the angle of the sensor probe for measurement. The STM32 series single-chip microprocessor resets the synchronous control inclinometer unit through the reset circuit, and the initial position reset circuit transmits the collected reset signal of the inclinometer sensor device probe reaching the starting position to the STM32 series single-chip microprocessor, so The voltage acquisition module of the power management module transmits the sampled power supply voltage value to the STM32 series single-chip microprocessor, and the STM32 series single-chip microprocessor processes the received data and sends it to the transceiver unit through the repeater unit. The 4G module performs network uploading and is finally visible on the Internet terminal device.

The mechanical frame 11 of the frame structure is a peripheral structure used to support the overall equipment and protect the internal circuit and battery. The mechanical frame material is made of aluminum, which is cuboid, the frame size is 350*500*500mm, and the frame weight (including cables) is 20-30kg. The center of gravity of the device is adjusted so that the tube body is located at the center of gravity of the device, which is more stable.

The waterproof cover 12 is installed on the outer side of the mechanical frame 11, with a size of 550*550*550mm, and is mainly fixed with the bottom bracket 13. The two are fixed at the four corners by four leveling screws 111. The leveling device of the device is convenient to adjust the installation angle of the device during installation. In the center of the bottom of the waterproof cover 12, there are channels for cables and inclinometer sensor probes.

As shown in Figure 2, Figure 3 and Figure 4, the leveling screw 111 used to connect the mechanical frame 11, the waterproof cover 12 and the bottom bracket 13 is a hand-tightening screw, which acts as a leveling device while fixing the three. The two ends are respectively fixed to the frame structure 11 and the bottom bracket 13, and the lower end 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 be fixed. The bottom bracket 13 is an approximately I-shaped aluminum profile bracket, and a channel is reserved for cables and sensor probes in the central part, which is used to hold the preset inclination measuring pipe 31, and tighten the screws by hand to confirm the basic principle. Flat surface, and then leveling installation on this basis.

As shown in FIG. 6 and FIG. 7 , the upper end of the cylindrical track structure device 162 of the probe measuring track angle switching device 16 is sleeved with a square fixing member 163 with a circular hole in the center, and each of the four corners of the fixing member has a screw hole 164 , use screws to fix the mechanical frame 11 through the screw holes 164, while fixing the square fixing member 163, it provides support and fixation for the cylindrical track structure device 162 to ensure that it is kept when changing the measurement angle of the inclination sensor probe 21. Stable, no lateral or vertical displacement occurs. Similarly, as shown in Fig. 6, the lower part of the cylindrical track structure device 162 also has a same square fixing member, which is also fixed by one screw at each corner, and the function is to fix the cylindrical track structure device 162, keep it stable, and make it No lateral displacement occurs during rotation.

The change of the measurement angle of the inclinometer sensor probe rod is realized by the probe rod measurement track angle switching device 16. The rotation motor 161 equipped on the left side is rotated, and the cylindrical track structure device 162 where the inclination sensor probe rod 21 is located is driven by the belt 165. Rotate 180 degrees to realize the 180-degree rotation of the inclination sensor probe itself for the next step of inclination measurement.

As shown in Figures 1 and 8, there is a fixing member 115 on the extension rod 113 on the upper side of the mechanical frame 11, close to the inner side of the inclinometer body, the middle part of which is welded and fixed with the extension rod 113 on the side, and there are screw holes at both ends. , used to fix the two wire clamping rollers 114, used to locate the telescopic path of the connecting cable 211 of the sensor probe, and the wire clamping roller 114 can also protect the cable from friction damage at the turning point. A gap is left between the two rollers for passing the connecting cable 211 of the sensor probe. As shown in FIG. 8, two bridge frame fixing pieces 116 are fixed on both sides of the extension rod 113, the bridge frame fixing piece and the extension rod 113 are fixed by welding, and the side of the bridge frame fixing piece 116 close to the inner side of the automatic tilt measuring device body is left. There are screw holes, a cable pulley 117 is used as a guide rail for the connecting cable 211 of the sensor probe between the two bridge brackets, so that it can be extended and retracted along the fixed direction. The two support rods 118 of the cable track structure 14 are also screwed. It is fixed on the outer side of the two bridge brackets 116 . The two bridge frame fixing members 116 are fixed with the cable pulley 117 and the outer frame rod 118 by hand-tightening screws. Fixing by hand-tightening screws can fix the position of the cable pulley 117 and adjust the angle of the frame rod 118 of the cable track structure 14 to facilitate adjustment of the telescopic angle and path of the cable.

Along the extension rod 113 upward in turn, a cable guide wheel device composed of three pulleys and two approximately triangular-shaped triangular fixing pieces 119 is installed between the two rods 118. As shown in FIG. 9, the three pulleys are clamped between between the two triangular fixed pieces 119 . The third pulley 1193 is fixed between the two rod frames and serves as a rotating shaft to ensure that the cable has a certain range of movement during movement. The first pulley 1191 and the second pulley 1192 form a cable track, allowing cables to pass between the two, and the second pulley 1192 and the triangular fixing member 119 are connected with a tension spring 1194, so that it has a certain mobility and fault tolerance , can better protect the cable.

As shown in FIG. 1 and FIG. 10 , the cable control and retraction device 15 is located inside the mechanical frame 11 , and the rotation control winding device 154 is fixed by screws using the side frame 151 and the mechanical frame 11 , which is a detachable design. There is a rectangular hole 152 just above it, which serves as a travel track for the connecting cable 211 of the sensor probe. A rotating motor 153 is installed on the side of the cable control and retractable device 15, and the rotation of the cable winding device 154 can be controlled by controlling the rotation, so that the cable can be retracted or lowered.

As shown in FIG. 1 , the battery 112 is divided into two parts, which are assembled on the other side of the above-mentioned cable control and retractable device 15 relative to the above-mentioned probe rod measuring track angle switching device 16 , and are designed to be detachable and supply power to the equipment. Also balance the weight of the equipment. The control circuit box can be placed on the outer upper end of the waterproof cover 12, and is fixed with the waterproof cover by screws, and the contact surface is left with wire holes, and the edge is waterproofed.

The working process of the present utility model is as follows:

Step 1: First, fix the bottom bracket 13 on the inclinometer pipe 31, and fix the inclinometer pipe clamp 131, as shown in FIG. 2 . The fixing method is as follows: clamp the inclinometer pipe clamp 131 in the center of the bottom bracket 13 to the periphery of the inclinometer pipe 31, and then tighten the hand screws on the side to fix the position.

The second step is to adjust the leveling screw 111 to keep the body of the inclinometer stable on the bottom bracket 13 to prevent the device from collapsing and tilting during the operation of the device, resulting in errors in the measured data or damage to the instrument.

The third step is to install the inclination sensor probe 21 and the connecting cable 211 into the mechanical frame 11. When using it for the first time, manually place the inclination sensor probe 21 into the inclination pipeline 31. The schematic diagram is shown in Figure 11. Put the probe pulleys 212 on both sides of the inclinometer sensor probe rod 21 into the guide groove 311 on the inner wall of the inclinometer pipe, and pull the probe rod up and down by hand, so that the probe rod can slide freely in the inclinometer tube. That is, the placement is successful.

The fourth step is to install the battery 112, close the waterproof cover; turn it on, set the inclination measurement parameters, measurement time, etc. on the human-computer interaction screen, and then start to use. After starting to use, the automatic foundation pit inclination measuring device automatically operates to lower the inclination sensor probe rod 21 , and when the inclination measurement sensor probe rod 21 travels to the bottom of the inclination measurement pipeline 31 , it pulls up. And in the process of pulling up, stop measurement every 1 meter, and measure the inclination angle of the guide axis of the inclinometer pipeline relative to the plumb line in steps of 1 meter. At this time, the automatic foundation pit inclination measurement device records the measurement data. And according to the length of the segment and the angle of inclination, the horizontal displacement value of the soil corresponding to each segment is calculated until the probe rods 21 of the inclinometer sensor are all pulled out of the inclinometer pipe 31 . After the operation is completed, the automatic foundation pit inclination measuring device automatically rotates the inclinometer sensor probe 21 along the axis of the inclinometer pipeline itself by 180 degrees and then puts it into the inclinometer pipeline 31. The entered guide groove 311 is still used for the operation just now. Then lower the probe of the inclinometer sensor to the bottom of the inclinometer tube, and then perform the pull-up operation. During the same period, the measurement is stopped every 1 meter, and the data is recorded. Finally, take out the sensor probe to complete a measurement.

The fifth step is to view the measured and sorted data on the mobile phone terminal or computer web terminal, and you can also remotely change the set parameters, measure regularly, check the power of the device, and replace the battery in time.

The automatic foundation pit inclination measuring device collects the data and transmits it to the cloud server through the 4G network, and communicates with the user terminal to obtain the soil condition of the foundation pit monitoring point where the inclination measuring pipeline is located, and realizes the measurement of the foundation pit soil data.

The above is only an embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that for those skilled in the art, without departing from the technical principle of the present invention, the Several improvements and modifications are made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

To sum up, the automatic foundation pit inclination measurement device of the above embodiment is simple to operate, can replace manual detection, improve detection efficiency, reduce risks in the detection process, and is beneficial to subsequent engineering construction, and is worthy of promotion.

Claims (5)

1. an automatic foundation pit inclination measuring device, comprising frame structure, inclination sensor, control circuit box and accumulator, it is characterized in that: The frame structure includes a mechanical frame, a waterproof cover, a bottom bracket, a cable track structure, a cable control and retractable device, and a probe measuring track angle switching device; The inclination sensor includes an inclination sensor probe and a connecting cable thereof; The mechanical frame is a cuboid peripheral structure, which is used to support the overall device and protect the internal circuit and battery; the waterproof cover is installed on the outside of the mechanical frame and is fixed with the bottom bracket; the bottom bracket is an I-shaped aluminum profile bracket, The central part has a channel for the inclination sensor probe, which is used to hold the preset inclination pipeline; The cable track structure is fixed on the extension rod on the upper side of the mechanical frame, and the cable control and retraction device is located inside the mechanical frame, on the same side as the cable track structure, and both are fixed to the mechanical frame; the connection After the cable is drawn out from the cable control and retractable device, it is connected with the probe of the inclination sensor through the cable track structure; The battery is assembled in the mechanical frame on the other side of the cable control and retractable device, and adopts a detachable type to supply power to the device and balance the counterweight of the device; The control circuit box is assembled and arranged on the outer side of the waterproof cover of the device body, and includes a main control unit, a power management unit, a repeater unit, a transceiver unit and a display module; The cable control and retraction device includes a rotation control winding device and a rotating motor; the rotation control winding device is fixed with the mechanical frame by the side frames on both sides, and is used for the storage of connecting cables; the rotation The motor is installed on the side to control the rotation of the rotation control winding device, so that the cable can be retracted or lowered; The probe measuring track angle switching device includes a rotating motor, a cylindrical track structure device, a belt, and a square fixing member; the upper and lower ends of the cylindrical track structure device are fixed to the mechanical frame by the square fixing member, and the cylindrical hollow is used for the mechanical frame. The probe rod of the inclination sensor passes through, and a rotary motor is arranged on the side, and the rotary motor controls the rotation of the cylindrical track structure device through the belt. 2. a kind of automatic foundation pit inclination measuring device according to claim 1 is characterized in that: The cable track structure is fixedly provided with two wire clamping rollers on the extension rod, which are used to locate the telescopic path of the connecting cable; bridge fixing parts are fixed on both sides of the top of the extension rod, and a wire is arranged between the two bridge fixing parts A cable pulley, and a frame rod is fixed on the outside of the two bridge frame fixing pieces. 3. a kind of automatic foundation pit inclination measuring device according to claim 2 is characterized in that: A cable guide wheel device is arranged between the two frame rods, and the cable guide wheel device is composed of three pulleys sandwiched between two triangular fixed pieces. 4. a kind of automatic foundation pit inclination measuring device according to claim 1 is characterized in that: The control circuit box is connected with the probe measuring track angle switching device, and the rotation of the rotating motor is controlled by the main control unit. 5. a kind of automatic foundation pit inclination measuring device according to claim 4 is characterized in that: When the rotating motor of the probe rod measuring track angle switching device rotates, the belt drives the cylindrical track structure device where the inclination sensor probe rod is located to rotate 180 degrees, so as to realize the 180 degree rotation of the inclination sensor probe rod itself.

Images