A waterproof and dustproof micro-displacement detection device for high dust environment

Abstract

The application relates to a waterproof and dustproof micro-displacement detection device used in a high-dust environment, which comprises a fixed shell fixed on an object to be detected and a sliding shell fixed on a fixed support, a dustproof and waterproof film is arranged between the fixed shell and the sliding shell, a light source is fixed on the sliding shell, a photoelectric sensing module is fixed on the fixed shell, a scale grating and an indicating grating are arranged between the light source and the photoelectric sensing module, the scale grating is fixed on the sliding shell, the indicating grating is fixed on the fixed shell, a signal conversion module and a control and data acquisition module are further arranged in the fixed shell, and the control and data acquisition module, the light source, the photoelectric sensing module and the signal conversion module are electrically connected. The application has the effects of improving detection efficiency and data reliability and prolonging service life.

Description

Technical Field

[0001] This application relates to the technical field of bulk cargo yard track monitoring, and in particular to a waterproof and dustproof micro-displacement detection device for use in high dust environments. Background Technology

[0002] In high-dust environments such as bulk cargo yards, open-air storage, and mining transportation, higher requirements are placed on the stability and safety of track systems. During long-term operation, track systems may experience micro-displacements due to factors such as settlement and deformation. If these are not monitored and warned of in a timely manner, they can easily lead to equipment malfunctions or safety accidents. Therefore, accurate monitoring of micro-displacements is particularly important.

[0003] While existing displacement sensors can achieve a certain degree of displacement detection in normal environments, their structural sealing and dustproof / waterproof performance often fail to meet the requirements for long-term stable operation in complex environments such as high dust levels, humidity, or frequent outdoor exposure. Dust can easily penetrate the sensor's interior through equipment gaps, causing contamination or damage to optical components or circuitry, severely affecting the sensor's measurement accuracy and lifespan.

[0004] Therefore, there is an urgent need for a micro-displacement detection device with good sealing performance that can adapt to harsh environments such as high dust and humidity, in order to improve detection efficiency and data reliability, extend service life, and reduce operation and maintenance costs. Utility Model Content

[0005] In order to provide a micro-displacement detection device with good sealing performance that can adapt to harsh environments such as high dust and humidity, so as to improve detection efficiency and data reliability, extend service life and reduce operation and maintenance costs, this application provides a waterproof and dustproof micro-displacement detection device for use in high dust environments.

[0006] The micro-displacement detection device for use in high-dust environments, which is waterproof and dustproof, provides the following technical solution: A waterproof and dustproof micro-displacement detection device for use in high-dust environments includes a fixed outer shell fixed to the object to be measured and a sliding shell fixed to a fixed support. A dustproof and waterproof membrane is provided between the fixed outer shell and the sliding shell. A light source is fixed on the sliding shell, and a photoelectric sensing module is fixed on the fixed outer shell. A scale grating and an indicator grating are provided between the light source and the photoelectric sensing module. The scale grating is fixed on the sliding shell, and the indicator grating is fixed on the fixed outer shell. A signal conversion module and a control and data acquisition module are also provided inside the fixed outer shell. The control and data acquisition module, the light source, the photoelectric sensing module, and the signal conversion module are electrically connected.

[0007] By adopting the above technical solution, the relative movement of the sliding housing and the fixed housing causes the scale grating and the indicator grating to form moiré fringes, which are collected by the photoelectric sensing module and transmitted to the control and data acquisition module, achieving high-precision displacement monitoring. This structure is reliably sealed, effectively isolating dust and moisture, ensuring long-term stable operation of the sensor.

[0008] Preferably, the control and data acquisition module includes a power supply module, which includes a battery fixed inside a fixed housing. The photoelectric sensing module, signal conversion module, and light source are all powered and signal-transmitted by the control and data acquisition module through a data cable.

[0009] By adopting the above technical solution, the battery provides an independent power source for the system, enabling the device to operate continuously in harsh environments without an external power supply. The various functional modules are connected via data cables, achieving unified power supply and data transmission, improving integration and reliability, and simplifying wiring and maintenance.

[0010] Preferably, a solar panel is fixed to the sun-facing side of the fixed housing, and the solar panel is electrically connected to the battery and the control and data acquisition module, respectively.

[0011] By adopting the above technical solution, the battery and control module are charged by solar panels, achieving self-sufficiency in green energy, enhancing the system's continuous operation capability, and making it particularly suitable for long-term deployment in environments without electricity, thus reducing the frequency of manual maintenance.

[0012] Preferably, an epoxy resin sealing layer is provided on the outer side of the solar panel.

[0013] By adopting the above technical solutions, the epoxy resin sealing layer can effectively protect the solar panel from external factors such as dust, moisture, and corrosion, improve its working stability and lifespan, and ensure the long-term reliable operation of the power supply system.

[0014] Preferably, a PTFE sliding plate is attached to one side of the sliding housing that slides relative to the fixed housing.

[0015] By adopting the above technical solution, the PTFE sliding plate has excellent self-lubricating and wear-resistant properties, which can significantly reduce the frictional resistance between the sliding shell and the fixed shell, ensure smooth and stable sliding process, extend the service life of the device and reduce maintenance requirements.

[0016] Preferably, the control and data acquisition module includes a 4G data transmission module. The control and data acquisition module acquires the output signal of the signal conversion module and transmits it to the background for analysis. At the same time, it receives instructions from the background to control the light source, the photoelectric sensing module, and the signal conversion module.

[0017] By adopting the above technical solution, the 4G data transmission module enables the device to have remote real-time communication capabilities, automatically upload detection data and receive background instructions, realize unattended data management and remote control, and improve the level of automation and intelligence.

[0018] Preferably, the light source is an LED light source.

[0019] By adopting the above technical solutions, the LED light source has the characteristics of high brightness, low energy consumption and long life, ensuring stable and clear grating imaging, which helps to improve the accuracy of moiré fringe recognition and optimize the response sensitivity and reliability of the entire micro-displacement detection system.

[0020] Preferably, the dustproof and waterproof membrane is a W-shaped dustproof and waterproof membrane, and the dustproof and waterproof membrane is respectively bonded and fixed to the sliding shell and the fixed shell by a weather-resistant adhesive layer.

[0021] By adopting the above technical solution, the W-type dustproof and waterproof membrane is bonded with a weather-resistant adhesive layer, resulting in a tight structure and strong sealing. This effectively prevents dust and moisture in the air from invading the internal circuit area, improving the overall environmental adaptability and long-term stability of the machine.

[0022] Preferably, an industrial grease layer is filled between the sliding housing and the fixed housing.

[0023] By adopting the above technical solution, the industrial grease layer can effectively fill the gaps between sliding parts and form a stable lubrication interface, which not only reduces friction loss, but also prevents dust and moisture from entering the device, further enhancing the sealing performance and service life of the device.

[0024] Preferably, both the fixed outer shell and the sliding shell are machined steel structures.

[0025] By adopting the above technical solutions, the machined steel structure possesses excellent structural strength and dimensional accuracy, effectively withstanding external impacts and environmental stresses, and maintaining the overall stability of the device. The corrosion resistance and deformation resistance of steel itself improve the durability of the equipment in high-dust and high-humidity environments, extend the service life of the sensing device, and reduce structural fatigue and maintenance frequency.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. This device uses the principle of grating moiré fringes combined with photoelectric recognition to achieve precise detection of micro-displacement of the track, and realizes remote real-time data transmission and control through a 4G data module. It is suitable for long-term automatic monitoring in unattended, high-dust scenarios such as bulk cargo yards and open-air warehouses. 2. The W-type dustproof and waterproof membrane, weather-resistant adhesive bonding, PTFE sliding plate and industrial grease sealing technology are adopted to effectively prevent dust and moisture from entering key components. At the same time, the machined steel shell significantly improves the equipment's operational stability and structural strength in harsh environments and extends its service life. 3. The integrated solar panel, battery and control module form a self-powered system that supports green energy charging and enables continuous operation around the clock. It is especially suitable for areas without electricity, reduces the frequency of manual maintenance, and improves the overall system reliability and deployment flexibility. Attached Figure Description

[0027] Figure 1 This is a cross-sectional view of the internal structure of a micro-displacement detection device that is waterproof and dustproof in a high-dust environment, as shown in the embodiments of this application.

[0028] Reference numerals in the attached diagram: 1. Fixed outer casing; 2. Sliding casing; 21. Base plate; 22. Support frame; 3. Dustproof and waterproof membrane; 4. Light source; 5. Scale grating; 6. Indicator grating; 7. Photoelectric sensing module; 8. Signal conversion module; 9. Battery; 10. Control and data acquisition module. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1 This application will be described in further detail.

[0030] This application discloses a micro-displacement detection device that is waterproof and dustproof in high-dust environments.

[0031] See Figure 1 A waterproof and dustproof micro-displacement detection device for high-dust environments includes a fixed housing 1 and a sliding housing 2, both of which are machined steel structures. The sliding housing 2 includes a base plate 21 and a support frame 22. The fixed housing 1 is located on one side of the base plate 21 along its thickness direction and covers the outside of the support frame 22. A PTFE sliding plate is adhered and fixed to the side of the base plate 21 closest to the fixed housing 1 along its thickness direction. A dustproof and waterproof membrane 3 is provided between the inner wall of the fixed housing 1 and the support frame 22. The dustproof and waterproof membrane 3 is a W-shaped membrane, and it is adhered and fixed to both the support frame 22 and the fixed housing 1 using a weather-resistant adhesive layer. An industrial grease layer is filled between the base plate 21, the support frame 22, and the fixed housing 1.

[0032] A light source 4 is installed between the support frames 22 and fixed to the base plate 21. The light source 4 is an LED light source 4. A scale grating 5 is fixed between the support frames 22. An indicator grating 6 and a photoelectric sensing module 7 are also fixed inside the fixed housing 1. The scale grating 5 and the indicator grating 6 are located between the light source 4 and the photoelectric sensing module 7. A signal conversion module 8 is installed on the side of the photoelectric sensing module 7 away from the scale grating 5 and is fixed inside the fixed housing 1. A control and data acquisition module 10 and a battery 9 are also installed inside the fixed housing 1. The photoelectric sensing module 7 and the signal conversion module 8 are electrically connected via a data cable. The signal conversion module 8 and the battery 9 are electrically connected to the control and data acquisition module via a data cable. The light source 4 is electrically connected to the control and data acquisition module 10 via a data cable, which passes through the gap between the scale grating 5 and the inner wall of the sliding housing 2.

[0033] LED light source 4 is used for emitting light. When the sliding housing 2 and the fixed housing 1 slide relative to each other, the scale grating 5 and the indicator grating 6 move relative to each other, causing a change in the moiré fringes of the diffraction. The photoelectric sensing module 7 identifies the moiré fringes and transmits the collected signal to the signal conversion module 8 via a data line. The signal conversion module 8 analyzes the signal through its built-in algorithm module, converting the moiré fringes information into micro-displacement change values, which are then transmitted to the control and data acquisition module 10. The control and data acquisition module 10 includes a 4G data transmission module, which enables the device to have remote real-time communication capabilities, automatically uploading detection data and receiving background instructions.

[0034] A battery 9 is also fixed inside the fixed housing 1, and a solar panel is fixed on the sun-facing side of the fixed housing 1. An epoxy resin sealing layer is provided on the outside of the solar panel. The solar panel, battery 9, and control and data acquisition module 10 are electrically connected. The photoelectric sensing module 7, signal conversion module 8, and light source 4 are all powered and have their signals transmitted by the control and data acquisition module 10 through data cables.

[0035] Except for the bonding of the dustproof and waterproof membrane 3, there are no other gaps between the machined steel fixed shell 1 and sliding shell 2 to prevent dust from entering. The sliding shell 2 is rigidly fixed to the outer fixed support, and the fixed shell 1 is rigidly fixed to the object to be measured. In actual operation, the back-end transmits the command to measure the micro-displacement to the control and data acquisition module 10 wirelessly via the 4G data transmission module. The control and data acquisition module 10 turns on the light source 4 and emits light to the photoelectric sensing module 7. The light passes through the scale grating 5 fixed on the sliding shell 2 and the indicator grating 6 fixed on the fixed shell 1. Due to the micro-displacement between the sliding shell 2 and the fixed shell 1, there is relative movement between the scale grating 5 and the indicator grating 6. After light passes through the scale grating 5 and the indicator grating 6, the resulting moiré fringes change. The photoelectric sensing module 7 identifies the changed moiré fringes and transmits the collected signal to the signal conversion module 8 via a data line. The signal conversion module 8 analyzes the moiré fringes information using its built-in algorithm module and converts it into a digital signal of micro-displacement change value. The control and data acquisition module 10 acquires the digital signal of micro-displacement change value converted by the signal conversion module 8 and wirelessly transmits the signal to the background system via the 4G data transmission module. The background system automatically records the micro-displacement change value and plots the change curve.

[0036] When the background system issues a measurement command to the control and data acquisition module 10 for the first time, it collects the initial moiré fringes and uses this fringe shape as the "0" point value for micro-displacement measurement. The background system sets the measurement time interval and issues a measurement command to the control and data acquisition module 10 via wireless transmission during the measurement time. The control and data acquisition module 10 controls the light source 4 to emit light through the data cable. The signal conversion module 8 collects data through the photoelectric sensing module 7, and then the control and data acquisition module 10 transmits the data back to the background software for micro-displacement calculation.

[0037] This application greatly improves the dustproof and waterproof performance of the displacement detection device, realizing all-weather, real-time, and automated monitoring of track micro-displacement in high-dust environments of bulk cargo yards, improving the service life of the device, greatly extending the maintenance cycle of the device, and saving a lot of manpower and material resources.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A waterproof and dustproof micro-displacement detection device for use in high-dust environments, characterized in that: The device includes a fixed housing (1) fixed to the object to be measured and a sliding housing (2) fixed to a fixed support. A dustproof and waterproof membrane (3) is provided between the fixed housing (1) and the sliding housing (2). A light source (4) is fixed on the sliding housing (2). A photoelectric sensing module (7) is fixed on the fixed housing (1). A scale grating (5) and an indicator grating (6) are provided between the light source (4) and the photoelectric sensing module (7). The scale grating (5) is fixed on the sliding housing (2), and the indicator grating (6) is fixed on the fixed housing (1). A signal conversion module (8) and a control and data acquisition module (10) are also provided inside the fixed housing (1). The control and data acquisition module (10), the light source (4), the photoelectric sensing module (7) and the signal conversion module (8) are connected by telecommunications.

2. The micro-displacement detection device for waterproof and dustproof applications in high-dust environments according to claim 1, characterized in that: The control and data acquisition module (10) includes a power supply module, which includes a battery (9) fixed inside a fixed housing (1). The photoelectric sensing module (7), the signal conversion module (8), and the light source (4) are all powered and signal transmitted by the control and data acquisition module (10) through a data line.

3. A waterproof and dustproof micro-displacement detection device for use in high-dust environments according to claim 2, characterized in that: A solar panel is fixed to the sun-facing side of the fixed housing (1), and the solar panel is electrically connected to the battery (9) and the control and data acquisition module (10).

4. A waterproof and dustproof micro-displacement detection device for use in high-dust environments according to claim 3, characterized in that: An epoxy resin sealing layer is provided on the outside of the solar panel.

5. A waterproof and dustproof micro-displacement detection device for use in high-dust environments according to claim 1, characterized in that: A PTFE sliding plate is attached to one side of the sliding shell (2) that slides relative to the fixed shell (1).

6. A waterproof and dustproof micro-displacement detection device for use in high-dust environments according to claim 1, characterized in that: The control and data acquisition module (10) includes a 4G data transmission module. The control and data acquisition module (10) acquires the output signal of the signal conversion module (8) and transmits it to the background analysis. At the same time, it receives background instructions to control the light source (4), the photoelectric sensing module (7) and the signal conversion module (8).

7. A waterproof and dustproof micro-displacement detection device for use in high-dust environments according to claim 1, characterized in that: The light source (4) is an LED light source (4).

8. A waterproof and dustproof micro-displacement detection device for use in high-dust environments according to claim 1, characterized in that: The dustproof and waterproof membrane (3) is a W-type dustproof and waterproof membrane (3), and the dustproof and waterproof membrane (3) is bonded and fixed to the sliding shell (2) and the fixed shell (1) respectively by weather-resistant adhesive layer.

9. A waterproof and dustproof micro-displacement detection device for use in high-dust environments according to claim 1, characterized in that: An industrial grease layer is filled between the sliding housing (2) and the fixed housing (1).

10. A waterproof and dustproof micro-displacement detection device for use in high-dust environments according to claim 1, characterized in that: Both the fixed outer shell (1) and the sliding shell (2) are machined steel structures.

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