Lifting type full-automatic layered settlement measuring instrument

Abstract

The utility model provides a lifting type full-automatic layered settlement measuring instrument which comprises a settlement pipe, a settlement ring, a main control unit and a pay-off control unit, the main body of the inductive probe consists of a mounting rod, a protective shell and a hanging joint, and the protective shell and at least one group of pulley block are assembled on the mounting rod; the pulley block is arranged on the center line of the sedimentation pipe; the roller support is composed of a roller support, a pair of rollers and an elastic snap spring, the rollers are installed at the two ends of the roller support, and the center of the roller support is fixed to the installation rod through a bearing; the rollers slide in the guide groove of the sedimentation pipe, the two rollers are attached to the bottom of the guide groove through the elastic clamping spring, and the center point of the roller support is located at the center point of the sedimentation pipe. A cable is replaced by a steel cable, so that the working intensity is improved, and the cost is reduced; meanwhile, the stability of the inductive probe in the sedimentation pipe is improved, and the measurement precision is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of geotechnical engineering monitoring, more particularly to a lifting type full-automatic layered settlement measuring instrument. BACKGROUND

[0002] In the field of geotechnical engineering monitoring, layered settlement meters are often used to monitor the position changes of different depth soil bodies and the outside.

[0003] Currently, layered settlement meters mainly use electromagnetic induction principle for measurement. Before using the layered settlement meter for measurement, a settlement tube is first buried in the soil body, the settlement tube has settlement rings sleeved at different positions outside, a certain number of permanent magnets are installed inside the settlement rings, during measurement, a measurement operator pulls a cable with an induction probe, so that the probe moves in the settlement tube, the cable has a scale, when the probe reaches the position of the settlement ring, the probe transmits a signal to a ground response device through the cable, the response device issues an audible and visual alarm, the measurement operator reads the reading on the cable and records the data, and subsequent data processing is carried out. This method needs manual operation, reading and recording, and has high labor intensity, low efficiency and large error.

[0004] Some automatic layered settlement meters use motors to replace manual operation to drive the induction probe to move up and down in the settlement tube and automatically record the induction position, so as to achieve automatic measurement, such as CN103196421A and CN208780181U.

[0005] However, both manual and automatic layered settlement meters have some unsolved problems:

[0006] 1. The cable used needs to be isolated from the external magnetic field and needs to be waterproof, which requires high quality of the cable and high corresponding cost.

[0007] 2. During the unwinding process of the unwinding device, the cable may be wound due to too fast unwinding or blockage of foreign matters in the tube, which affects the smooth measurement and even damages the equipment.

[0008] 3. During the movement of the induction probe in the tube, the induction probe may sway or rotate, which causes the magnetic flux sensed by the induction probe to change when the induction probe approaches the settlement ring, resulting in error in the measured data. INVENTION CONTENTS

[0009] In order to overcome the deficiencies of the prior art, the full-automatic layered settlement meter realizes efficient, accurate and stable settlement process control through precise mechanical design. The cable is replaced by a steel cable, which improves the working strength and reduces the cost; at the same time, the stability of the induction probe in the settlement tube is improved, and the measurement accuracy is further improved.

[0010] To achieve the above object, the utility model provides the following technical scheme, mainly includes:

[0011] A lifting type full-automatic layered sedimentation measuring instrument, including a sedimentation tube, a magnetic sedimentation ring is sleeved on the outside of the sedimentation tube at different depths, and the sedimentation ring further includes a main control unit for receiving measurement instructions and coordinating the work of each module and a pay-off control unit for controlling the up-down movement of an induction probe in the sedimentation tube;

[0012] The main body of the induction probe is composed of a mounting rod, a protective shell and a hanging joint, the hanging joint is used for hanging a steel wire rope and connecting to the protective shell, one end of the protective shell is connected with the hanging joint, and the other end is connected to the mounting rod, and the mounting rod is assembled with the protective shell and at least one pulley block;

[0013] The pulley block is arranged on the center line of the sedimentation tube and is composed of a roller support, a pair of rollers and an elastic clamp spring, the rollers are installed at the two ends of the roller support, and the center position of the roller support is fixed on the mounting rod through a bearing; the rollers slide in the guide groove of the sedimentation tube, the two rollers are attached to the bottom of the guide groove through the elastic clamp spring, and the center point of the roller support is located at the center point of the sedimentation tube.

[0014] In a specific embodiment, the induction probe further includes a battery, a probe mainboard, a magnetic induction chip, a Bluetooth communication module and a wireless charging receiving module; the wireless charging receiving module is used for charging the battery and is composed of a charging coil and a charging circuit;

[0015] The Bluetooth communication module is used for communication with the main control unit, receiving commands and transmitting data;

[0016] The magnetic induction chip is used for inducting magnetic flux and transmitting data to the probe mainboard;

[0017] The probe mainboard is used for controlling the magnetic induction chip to work, acquiring signals and recording data, and communicating with the main controller through the Bluetooth communication module.

[0018] In a specific embodiment, the sedimentation tube is made of plastic or aluminum alloy material, and a pair of guide grooves are arranged in the tube and are symmetrical about the axis.

[0019] In a specific embodiment, the pay-off control unit is connected with the induction probe through the steel wire rope and includes a pay-off driver, a winding drum, a pay-off detector, a coding wheel, a top collision protection device, a mechanical zero point detector, a steel wire rope and a tension sensing device;

[0020] The pay-off driver includes a driving circuit and a motor, the motor drives the winding drum to rotate, the winding drum drives the steel wire rope to move, and the steel wire rope pulls the induction probe to move in the sedimentation tube;

[0021] The winding drum drives the encoding wheel to rotate, and converts the movement distance of the steel wire rope into the rotation angle of the encoding wheel.

[0022] The pay-off detector is used for detecting the pay-off distance, and comprises an encoder and a driving circuit. The encoder is connected to the encoding wheel through a coupling. The steel wire rope drives the encoding wheel to rotate. The encoder outputs a pulse signal. A main controller collects the pulse signal.

[0023] In a specific embodiment, the tension sensing device is composed of a tension mechanism, a tension sensor and a corresponding acquisition circuit.

[0024] In a specific embodiment, the main control unit is used for receiving user instructions and coordinating the work of various modules of the system; including a main controller, a power module, a 4G communication module, a wireless charging module and a control App.

[0025] In a specific embodiment, the power module provides stable DC power for the main control unit and provides a power monitoring and acquisition interface; composed of a power chip, a solar charging module, a power detection circuit and a voltage stabilizing and discharging circuit.

[0026] The 4G communication module is used for connecting to a server, sending data to the server and receiving control instructions from the server.

[0027] The power supply unit provides charging control capability and a power monitoring and acquisition interface, and is composed of a battery, a charging circuit and a voltage stabilizing and discharging circuit.

[0028] In a specific embodiment, the wireless charging transmitting module is composed of a charging transmitting circuit and a transmitting coil.

[0029] Advantages:

[0030] 1. Steel wire rope is used instead of cable, reducing the volume of the winding drum, and thus reducing the size of the equipment, facilitating installation and protection.

[0031] 2. The tension protection device and the bump protection are set to make the equipment adapt to more complex working conditions.

[0032] 3. The limit guide wheel structure and the bidirectional measurement method greatly reduce the measurement error and improve the measurement accuracy.

[0033] 4. Long-term automatic measurement of soil deep settlement is realized without human intervention.

[0034] 5. Remote control instructions can be accepted to realize monitoring with different frequencies as needed, meeting the monitoring requirements of different construction stages. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings described below are only part of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of the provided drawings.

[0036] Figure 1 The structure diagram of one embodiment of the full-automatic layered sedimentation instrument is shown.

[0037] Figure 2 The structure diagram of the main control unit of one embodiment of the full-automatic layered sedimentation instrument is shown.

[0038] Figure 3 The structure diagram of the wire laying control unit of one embodiment of the full-automatic layered sedimentation instrument is shown.

[0039] Figure 4 The structure diagram of the induction probe of one embodiment of the full-automatic layered sedimentation instrument is shown.

[0040] In the drawings:

[0041] 1 - main control unit; 2 - wire laying control unit; 3 - power supply unit; 4 - induction probe; 5 - sedimentation tube; 6 - sedimentation ring;

[0042] 11 - main controller; 12 - power module; 13 - 4G communication module; 14 - control App;

[0043] 21 - wire laying driver; 22 - wire reel; 23 - wire laying detector; 24 - coding wheel; 25 - top collision protection; 26 - mechanical zero point detection; 27 - steel wire rope; 28 - tension induction device;

[0044] 41 - hanging joint; 42 - protective shell; 43 - battery; 44 - probe mainboard; 45 - mounting rod; 46 - pulley set; 47 - magnetic induction chip; 48 - Bluetooth communication module; 49 - wireless charging receiving module. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0046] Embodiment one

[0047] Figure 1 It is a kind of measuring instrument for lifting full-automatic measurement of soil deep settlement, and the structural schematic diagram of one embodiment is shown, the measuring instrument includes a main control unit 1, a wire laying control unit 2, a power supply unit 3, an inductive probe 4, a settlement tube 5, multiple settlement rings 6.

[0048] The settlement tube 5 in the measuring instrument is buried in the soil to be measured, and the settlement tube 5 is sleeved with multiple settlement rings 6. The main control unit 1 drives the inductive probe 4 to move up and down in the settlement tube 5 through the wire laying control unit 2, when the inductive probe 4 passes the position of the settlement ring 6, the inductive chip in the inductive probe 4 senses and sends out a signal, at this time, the inductive probe 4 records the corresponding time and sends data to the main control unit 1, and the main control unit 1 processes data and sends data to the measurement server.

[0049] The main control unit 1 is used for receiving user instructions and coordinating the work of each module of the system. It is responsible for receiving user instructions, initiating and scheduling measurement tasks, collecting and processing data, and forwarding, including a main controller 11, a power module 12, a 4G communication module 13, a wireless charging module 14, and a control App 15.

[0050] The main controller 11 runs the core software of the measurement system, which coordinates the work of each unit, completes measurement, calculation, communication, interaction and other tasks, and sends movement instructions to the wire laying control unit 2 and receives detection signals fed back by the wire laying control unit 2 to realize accurate positioning. The main controller 11 sends tasks to the inductive probe 4 and reads the data measured by the inductive probe 4, after receiving complete data, the main controller 11 calculates and organizes data to send to the cloud server, and the measurement process is as follows.

[0051] Step 1: the main controller 11 drives the wire laying control unit 2, and moves the inductive probe 4 to the reference point in combination with the reference point limit switch.

[0052] Step 2: the main controller 11 establishes communication with the inductive probe 4 and sends measurement tasks to the inductive probe 4;

[0053] Step 3: the main controller 11 synchronizes time with the inductive probe 4 and starts the task at the same time;

[0054] Step 4: the main controller 11 drives the wire laying control unit 2 to uniformly speed up the inductive probe 4 to the bottom of the settlement tube 5;

[0055] Step 5: the main controller 11 drives the wire laying control unit 2 to uniformly speed up the inductive probe 4 to the reference point;

[0056] Step 6: During the period, the main controller 11 samples and records the position information of the inductive probe 4 at each time; the inductive probe 4 senses each sedimentation ring 6, and records the time when passing through the sedimentation ring 6;

[0057] Step 7: When the inductive probe 4 returns to the reference point, the main controller 11 establishes a communication connection with the inductive probe 4 and reads the measured data.

[0058] Step 8: The main controller 11 processes the data and sends the result data to the cloud server.

[0059] Step 9: Complete a measurement task, the main controller 11 controls the whole system to sleep, waiting for the next measurement to start.

[0060] Among them, the main controller 11 receives the time data of the inductive probe 4 returning to the sedimentation ring 6, and obtains the position information of each sedimentation ring 6 according to the distance and time mapping table stored by itself.

[0061] By measuring the downlink and uplink data, the position data of the same position of the two groups of data is averaged. Because the measurement error is respectively positively and negatively related to the uplink and downlink position data, the error is offset after averaging, so this method can achieve the purpose of eliminating error.

[0062] The power module 12 provides stable DC power for the main control unit 1, and provides a power monitoring and collecting interface. It is mainly composed of a power chip, a solar charging module, a power detection circuit, a voltage stabilizing and discharging circuit, etc.

[0063] The 4G communication module 13 is used to connect the server, send data to the server and receive the control instructions of the server.

[0064] The wireless charging module 14 charges the inductive probe 4, which is composed of a charging transmission circuit and a transmission coil. When it is detected that the inductive probe 4 is below the set value, the wireless charging function is started to charge the inductive probe 4.

[0065] The control App 15 realizes the debugging, monitoring and other operations of the system. The working mode of the system is switched by the control App 15: debugging and running. In the debugging mode, parameters, time calibration, execution of a standard measurement, system reset, viewing of system parameters, downloading of design parameters from the measurement server, and checking of communication status with the server can be configured. In the running mode, the system running state can be viewed, automatic measurement can be performed, and data can be uploaded to the measurement server.

[0066] The power supply unit 3 provides stable DC power for the system, provides charging control capability and power monitoring and collecting interface, provides sleep circuit and energy recovery circuit. It is mainly composed of a battery, a charging circuit, a voltage stabilizing and discharging circuit, etc.

[0067] The wire release control unit 2 is connected with the inductive probe 4 through a steel wire rope and a sensing probe 4, and the wire release control unit 2 drives the inductive probe 4 to move up and down in the settling tube 5, which mainly comprises a wire release driver 21, a winding disc 22, a wire release detector 23, an encoding wheel 24, a top collision protection device 25, a mechanical zero point detector 26, a steel wire rope 27 and a tension sensing device 28.

[0068] The wire release driver 21 comprises a driving circuit and a motor, which receives a movement instruction from the main controller 11, generates a pulse signal, drives the motor to rotate, drives the winding disc 22 to rotate, drives the steel wire rope 27 to move, and drives the inductive probe 4 to move in the settling tube 5.

[0069] The winding disc 22 can accommodate the steel wire rope 27 and drive the steel wire rope 27 to move; when the steel wire rope 27 moves, the encoding wheel 24 rotates, and the moving distance of the steel wire rope 27 is converted into the rotating angle of the encoding wheel 24.

[0070] The wire release detector 23 is used for detecting the wire release distance, comprises an encoder and a driving circuit, is connected with the encoder wheel through a connecting shaft, and drives the encoder wheel to rotate when the steel wire rope 27 moves; the encoder outputs a pulse signal, and the main controller 11 collects the pulse signal and calculates the moving distance of the steel wire rope 27 through a conversion algorithm and a correction algorithm.

[0071] The PID algorithm is adopted to control the rotating speed of the motor, so that the inductive probe 4 moves slowly and uniformly in the settling tube 5.

[0072] The mechanical zero point detector 26 is used for positioning the measurement basic position of the system, which is referred to as a reference point, and is composed of a pair of photoelectric tubes and a light point driving circuit. When the inductive probe 4 moves up and down, the photoelectric tube forms a pass or break signal, and feeds back the pass or break signal to the main controller 11. The main controller 11 determines the reference point of the inductive probe 4 according to the pass or break signal of the photoelectric tube, the movement direction and the measurement task execution state. Each measurement starts from the reference point, and when the inductive probe 4 returns to the reference point to complete a measurement task, the main controller establishes communication with the inductive probe 4 and obtains all data of the measurement.

[0073] The top collision protection device 25 is composed of a travel switch and a corresponding control circuit, and when the inductive probe 4 collides with the top, the travel switch contact is closed, the corresponding control circuit cuts off the motor power supply, and the main control unit 1 is informed, so that the response is realized in microseconds.

[0074] The tension sensing device 28 is composed of a tension mechanism, a tension sensor and a corresponding acquisition circuit. When the settling pipe 5 is blocked, the sensing probe 4 slows down, the acquisition circuit acquires the data of the tension sensor, and the steel wire rope 27 is loosened. According to the control algorithm, the motor is determined to slow down or stop measuring to protect the machine from damage.

[0075] The sensing probe 4 is used to sense the position of the settling ring 6, which is mainly composed of a hanging joint 41, a protective shell 42, a battery 43, a probe mainboard 44, a mounting rod 45, a pulley set 46, a magnetic induction chip 47, a Bluetooth communication module 48 and a wireless charging receiving module 49.

[0076] The hanging joint 41 is used to hang the steel wire rope 27 and is connected to the protective shell 42; the protective shell 42 is used to protect the electronic components, one end of which is connected to the hanging joint 41 and the other end is connected to the mounting rod 45, which needs to withstand a large pressure (10 Bar), so it needs to have a pressure-resistant and waterproof structure.

[0077] The mounting rod 45 is used to mount other components, on which the protective shell 42 and two sets of pulley sets 46 are assembled.

[0078] The pulley set 46 is used to keep the sensing probe 4 on the center line of the settling pipe 5 when it moves up and down on the settling pipe 5; it is composed of a roller support, a pair of rollers and a elastic clamp spring, the rollers are installed at both ends of the roller support, and the center point of the roller support is fixed on the mounting rod 45 through a bearing; when working, the rollers slide in the guide groove of the settling pipe 5, and the elastic clamp spring can make the two rollers stick to the bottom of the guide groove, and the center point of the roller support is at the center point of the settling pipe 5; the two pulley sets 46 work together to keep the sensing probe 4 on the center line of the settling pipe 5, achieving the goal of improving the measurement accuracy.

[0079] The wireless charging receiving module 49 is used to charge the battery 43 when the battery 43 has low power, ensuring the long-term stable operation of the sensing probe 4, which is composed of a charging coil and a charging circuit.

[0080] The Bluetooth communication module 48 is used for communication with the main control unit 1, receiving commands and transmitting data.

[0081] The magnetic induction chip 47 is used to sense the magnetic flux when the sensing probe 4 approaches the settling ring 6, and the size of the magnetic flux is provided for the probe mainboard 44 to collect.

[0082] The probe mainboard 44 is used to run the core software of the sensing probe 4, to control the magnetic induction chip 47, to obtain signals and record data, and to communicate with the main controller 11 through the Bluetooth communication module 48 to complete the entire measurement process.

[0083] The settling tube 5 is made of plastic or aluminum alloy, etc. and is provided with a pair of guide grooves which are symmetrical about the axis. The settling tube 5 is buried in the soil to be measured, and can provide a moving space for the inductive probe 4 and protect the inductive probe 4. A plurality of settling rings 6 are installed outside the settling tube 5 according to the measurement requirement. The settling ring 6 is provided with a magnet ring. When the soil produces deep settlement, the corresponding settling ring 6 will move up and down along the settling tube 5. The inductive probe 4 can obtain the deep settlement of the soil by detecting the position change of the settling ring 6.

[0084] The various embodiments are described in the specification by way of progression, each building on the previous embodiment, but it is contemplated that each embodiment can be implemented or used individually. The embodiments disclosed are for illustrative purposes and are not meant to be limiting. The disclosure is to be construed as not limited to the embodiments set forth herein; many variations are possible which will be apparent to those having skill in the art.

[0085] The above description of disclosed embodiments provides enabling disclosure sufficient for one of ordinary skill in the art to practice the disclosure. Various modifications to those embodiments will be readily apparent to those with skill in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lifting type full-automatic layered sedimentation measuring instrument, comprising a sedimentation tube, a magnetic sedimentation ring is sleeved on the outside of the sedimentation tube at different depths, a main control unit for receiving measurement instructions and coordinating the work of each module, and a pay-off control unit for controlling the up-and-down movement of an induction probe in the sedimentation tube; characterized in that: the main body of the induction probe is composed of a mounting rod, a protective shell, and a hanging joint, the hanging joint is used for hanging a steel wire rope and connecting to the protective shell, one end of the protective shell is connected to the hanging joint, and the other end is connected to the mounting rod, and the mounting rod is assembled with the protective shell and at least one set of pulley blocks; the pulley block is arranged on the center line of the sedimentation tube and is composed of a roller support, a pair of rollers, and an elastic clamp spring, the rollers are mounted at both ends of the roller support, the center of the roller support is fixed on the mounting rod through a bearing, the rollers slide in the guide groove of the sedimentation tube, the two rollers are attached to the bottom of the guide groove through the elastic clamp spring, and the center point of the roller support is located at the center point of the sedimentation tube; the induction probe further comprises a battery, a probe mainboard, a magnetic induction chip, a Bluetooth communication module, and a wireless charging receiving module; the wireless charging receiving module is used for charging the battery and is composed of a charging coil and a charging circuit; the Bluetooth communication module is used for communicating with the main control unit, receiving commands, and transmitting data; the magnetic induction chip is used for inducting magnetic flux and transmitting data to the probe mainboard; the probe mainboard is used for controlling the work of the magnetic induction chip, acquiring signals, and recording data, and communicates with the main controller through the Bluetooth communication module; the sedimentation tube is made of plastic or aluminum alloy material, and a pair of guide grooves are arranged in the tube and are symmetric about the axis; the pay-off control unit is connected with the steel wire rope and the induction probe and comprises a pay-off driver, a winding drum, a pay-off detector, a coding wheel, a top collision protection device, a mechanical zero point detector, a steel wire rope, and a tension sensing device; the pay-off driver comprises a driving circuit and a motor, the motor drives the winding drum to rotate, the winding drum drives the steel wire rope to move, and the steel wire rope drives the induction probe to move in the sedimentation tube; the winding drum drives the coding wheel to rotate, and converts the moving distance of the steel wire rope into the rotating angle of the coding wheel; the pay-off detector is used for detecting the pay-off distance and comprises an encoder and a driving circuit, is connected with the coding wheel through a connecting shaft, and rotates with the coding wheel driven by the movement of the steel wire rope, outputs a pulse signal, and collects the pulse signal by the main controller; the tension sensing device is composed of a tension mechanism, a tension sensor, and a corresponding acquisition circuit; the main control unit is used for receiving user instructions and coordinating the work of each module of the system, and comprises a main controller, a power module, a 4G communication module, a wireless charging module, and a control App; the power module provides stable direct current power for the main control unit and provides a power monitoring acquisition interface, and is composed of a power chip, a solar charging module, a power detection circuit, and a voltage stabilizing discharge circuit; the 4G communication module is used for connecting a server, sending data to the server, and receiving control instructions from the server; and the power supply unit provides a charging control capability and a power monitoring acquisition interface, and is composed of a battery, a charging circuit, and a voltage stabilizing discharge circuit. ​ ​ 2. The sedimentation measuring apparatus according to claim 1, characterized in that ​ ​ ​ ​ 3. The sedimentation measuring apparatus according to claim 1, characterized in that ​ 4. The sedimentation measuring apparatus according to claim 1, characterized in that ​ ​ ​ ​ 5. The sedimentation measuring apparatus according to claim 4, characterized in that ​ 6. The sedimentation measuring apparatus according to any one of claims 1 to 5, characterized in that ​ 7. The sedimentation measuring apparatus according to claim 6, characterized in that ​ ​ ​ 8. The sedimentation measuring apparatus according to claim 7, characterized in that The wireless charging transmitting module is composed of a charging transmitting circuit and a transmitting coil. The wireless charging transmitting module is composed of a charging transmitting circuit and a transmitting coil.

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