CN113884092A - Optical fiber compass combined inertial navigation device - Google Patents

Optical fiber compass combined inertial navigation device Download PDF

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Publication number
CN113884092A
CN113884092A CN202110986300.1A CN202110986300A CN113884092A CN 113884092 A CN113884092 A CN 113884092A CN 202110986300 A CN202110986300 A CN 202110986300A CN 113884092 A CN113884092 A CN 113884092A
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CN
China
Prior art keywords
input end
output end
optical fiber
compass
interface board
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CN202110986300.1A
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Chinese (zh)
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CN113884092B (en
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马如中
马澍昊
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Jiangsu Anhang Marine Equipment Co ltd
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Jiangsu Anhang Marine Equipment Co ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/10Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration
    • G01C21/12Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning
    • G01C21/16Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
    • G01C21/18Stabilised platforms, e.g. by gyroscope

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Gyroscopes (AREA)

Abstract

The invention discloses an optical fiber compass combined inertial navigation device, relates to the technical field of optical fiber compass combined inertial navigation devices, and aims to solve the problems that the conventional optical fiber compass combined inertial navigation device has strong corrosion to the working environment, so that a screw used for mounting and fixing is gradually corroded when the device is used for a long time, and the optical fiber compass combined inertial navigation device falls off to influence the normal use of the device. The utility model discloses a sealing device, including installation base, installation base up end, connecting thread externally mounted has the anticorrosive cap of sealed regulation, the fixed block is installed to the inside upper end of sealed regulation anticorrosive cap, the fixed block is connected with sealed regulation anticorrosive cap swivelling joint, the elastic rubber piece is installed to the lower extreme of fixed block, the removal mounting panel is installed to the lower extreme of elastic rubber piece.

Description

Optical fiber compass combined inertial navigation device
Technical Field
The invention relates to the technical field of an optical fiber compass combined inertial navigation device, in particular to an optical fiber compass combined inertial navigation device.
Background
In the sea-bottom terrain measurement of open sea water areas, in order to reduce errors of a multi-beam sounding system caused by changes of ship body postures caused by waves in vertical depth and plane positions, the optical fiber compass combined inertial navigation device is adopted to improve measurement accuracy, can provide perfect real-time heave data for various ships under any sea conditions, and can give six-degree-of-freedom motion postures and true azimuth angles of carriers, and generally works in sea areas, and is corroded when used due to certain corrosivity contained in seawater.
However, the working environment of the existing optical fiber compass combined inertial navigation device is highly corrosive, which causes the device to be gradually corroded by the screw used for installation and fixation when the device is used for a long time, and causes the optical fiber compass combined inertial navigation device to fall off to influence the normal use of the device; therefore, the existing requirements are not met, and an optical fiber compass combined inertial navigation device is provided for the existing requirements.
Disclosure of Invention
The invention aims to provide an optical fiber compass combined inertial navigation device, which solves the problem that the normal use of the device is influenced by falling off of a screw used for mounting and fixing the device under long-time use because the working environment of the optical fiber compass combined inertial navigation device provided by the background technology is high in corrosivity.
In order to achieve the purpose, the invention provides the following technical scheme: an optical fiber compass combined inertial navigation device comprises an installation base, wherein installation cylinders are arranged at the front end and the rear end of two sides of the upper end surface of the installation base, the installation cylinders are fixedly connected with the installation base, connecting threads are arranged at the upper end of the outer portion of the installation cylinder and fixedly connected with the installation cylinder, a sealing adjustment anti-corrosion cap is arranged at the outer portion of the connecting threads, a fixed block is arranged at the upper end of the inner portion of the sealing adjustment anti-corrosion cap and rotatably connected with the sealing adjustment anti-corrosion cap, an elastic rubber block is arranged at the lower end of the fixed block, a movable installation plate is arranged at the lower end of the elastic rubber block, a silica gel propelling block is arranged at the lower end of the movable installation plate and fixedly connected with the movable installation plate, limiting clamping legs are arranged inside the front end and the rear end of the lower end of the installation base, and limiting clamping shafts are arranged inside the limiting clamping legs, and a sealing layer is arranged outside the limiting clamp shaft.
Preferably, a main body bracket is installed at the upper end of the installation base, a main compass is arranged inside the main body bracket, a compass control unit is arranged inside the main body bracket, the main compass comprises a three-axis fiber-optic gyroscope, a navigation resolving plate, a three-axis accelerometer, an information acquisition plate and a power interface plate, the output end and the input end of the three-axis fiber-optic gyroscope are connected with the input end and the output end of the navigation resolving plate, the output end and the input end of the navigation resolving plate are bidirectionally connected with the input end and the output end of the power interface plate, the output end and the input end of the three-axis fiber-optic gyroscope are bidirectionally connected with the input end and the output end of the power interface plate, the output end and the input end of the information acquisition plate are bidirectionally connected with the input end and the output end of the three-axis accelerometer, and the output end and the input end of the navigation resolving plate are bidirectionally connected with the input end and the output end of the information acquisition plate.
Preferably, the compass control unit includes a signal conversion template and a power supply module, an output end and an input end of the signal conversion template are bidirectionally connected with an input end and an output end of the power supply interface board, an output end of the power supply module is connected with an input end of the power supply interface board, and an input end of the signal conversion template is connected with an output end of the power supply module.
Preferably, the first leak protection pad is installed to the one side that spacing calorie of axle is close to the sealing layer, first leak protection pad and spacing calorie of leg fixed connection, spacing calorie of axle is kept away from one side of spacing calorie of leg and is installed the second leak protection pad, the second leak protection pad is with spacing calorie of axle fixed connection.
Preferably, a top sealing gasket is installed at the upper end inside the sealing regulation anticorrosion cap, and the top sealing gasket is fixedly connected with the sealing regulation anticorrosion cap.
Preferably, a connection port is installed on the front end face of the main body support and is fixedly connected with the main body support.
Preferably, the input end of the power interface board is provided with a GPS, and the input end of the GPS is connected with the input end of the power interface board.
Preferably, the input end of the power supply module is provided with 24VDC and 220VAC power supplies, and the input end of the power supply module is connected with the 24VDC and 220VAC power supply input ends through a wire.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can fix the sealing adjustment anti-corrosion cap by arranging the connecting thread, prevent the sealing adjustment anti-corrosion cap from loosening, ensure the functional integrity of the device, ensure that the elastic rubber block can push the silica gel propelling block to move so that hydraulic oil in the device can push the silica gel propelling block upwards, reduce the pressure of the hydraulic oil, play a role in buffering, increase the shock resistance of the device, prevent the device from being shocked, cause the hydraulic oil to push the sealing adjustment anti-corrosion cap to fall off, enhance the use effect of the device, install the limiting clamping shaft to push the limiting clamping shaft to move by using the hydraulic oil in the device, clamp the device and prevent the device from falling off, adopt the limiting clamping shaft to clamp the device, do not need to use a screw to install the device, and ensure that the device is more simply, conveniently and quickly installed, meanwhile, the device is prevented from falling off, and the long-term working capacity of the device in a certain corrosive environment is ensured;
2. the invention can ensure the consistency of the angular motion information and the linear motion information of the ship by arranging the three-axis accelerometer and the three-axis fiber-optic gyroscope, increases the precision of the device, can provide the true course angle, the roll angle, the pitch angle, the position, the speed and the like of a carrier under a dynamic environment, compared with the traditional gyro compass, the fiber-optic gyro compass has the advantages of quick start, light weight, easy maintenance and the like, can analyze the course and the state information of the main compass by arranging the signal conversion template, provides NMEA0183 standard HEHDT course message to external equipment through a serial port of a connecting port, ensures the functional integrity of the device, arranges the power interface board to convert the 24V direct current provided by the compass control unit into a working power supply, provides navigation information to the outside through the connecting port, enhances the practicability of the device, can seal the device by arranging the first leakage-proof gasket and the second leakage-proof gasket, and prevents the hydraulic oil from overflowing from the device inside the device, the change of the internal pressure of the device is caused, the practicability of the device is enhanced, the sealing capacity of the device can be further increased by installing a top sealing gasket, the leakage of hydraulic oil in the device is prevented, and the installation connecting port is convenient for workers to connect the device with external equipment of the device, so that the device is more convenient to use, and the functional integrity of the device is ensured.
Drawings
FIG. 1 is a three-dimensional perspective view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is an enlarged view of a portion A of the present invention;
FIG. 4 is an enlarged view of a portion B of the present invention;
FIG. 5 is an internal configuration diagram of the present invention.
In the figure: 1. installing a base; 2. a main body support; 3. a connection port; 4. sealing and adjusting the anti-corrosion cap; 5. mounting the cylinder; 6. limiting and clamping legs; 7. limiting the shaft; 8. a triaxial fiber optic gyroscope; 9. a navigation resolving board; 10. a three-axis accelerometer; 11. an information acquisition board; 12. a power interface board; 13. a signal conversion template; 14. a power supply module; 15. a main compass; 16. a compass control unit; 17. connecting threads; 18. a top seal pad; 19. a fixed block; 20. an elastic rubber block; 21. moving the mounting plate; 22. a silica gel propelling block; 23. a sealing layer; 24. a first leakage preventing pad; 25. and a second leakage preventing pad.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The embodiment provides an optical fiber compass combined inertial navigation device, as shown in fig. 1-5, which includes an installation base 1, installation cylinders 5 are respectively disposed at front and rear ends of two sides of an upper end surface of the installation base 1, the installation cylinders 5 are fixedly connected with the installation base 1, a connecting thread 17 is disposed at an upper end of an outer portion of the installation cylinders 5, the connecting thread 17 is fixedly connected with the installation cylinders 5, the connecting thread 17 is disposed to fix and seal and adjust an anti-corrosion cap 4, so as to prevent the anti-corrosion cap 4 from loosening, and ensure the functional integrity of the device, the anti-corrosion cap 4 is installed at an outer portion of the connecting thread 17, a fixed block 19 is installed at an upper end of the inner portion of the anti-corrosion cap 4, the fixed block 19 is rotatably connected with the anti-corrosion cap 4, an elastic rubber block 20 is installed at a lower end of the fixed block 19, the elastic rubber block 20 can push a silica gel push block 22 to move, so that hydraulic oil in the device can push the silica gel push block 22 upwards, the pressure of hydraulic oil is reduced, the buffering effect is achieved, the shock resistance of the device is improved, the device is prevented from being vibrated, the sealing adjustment anti-corrosion cap 4 is jacked off by the hydraulic oil, the using effect of the device is enhanced, the elastic rubber block 20 is fixedly connected with the fixed block 19, the lower end of the elastic rubber block 20 is provided with the movable mounting plate 21, the movable mounting plate 21 is fixedly connected with the elastic rubber block 20, the lower end of the movable mounting plate 21 is provided with the silica gel propelling block 22, the silica gel propelling block 22 can pressurize the hydraulic oil, the hydraulic oil can push the limiting clamping shaft 7 to move, the silica gel propelling block 22 is fixedly connected with the movable mounting plate 21, the limiting clamping legs 6 are respectively arranged in the front end and the rear end of the lower end of the mounting base 1, the limiting clamping legs 6 are fixedly connected with the mounting base 1, the limiting clamping shafts 7 are arranged in the limiting clamping legs 6, and the limiting clamping shafts 7 can push the limiting clamping shafts 7 to move by the hydraulic oil in the device, block the device, prevent that the device from droing, adopt spacing calorie of axle 7 to block the device, need not to use screw installation device, make the device installation get up more, simple, convenient, quick, avoid the device to drop simultaneously, guarantee the device ability of working for a long time under having certain corrosive environment, spacing calorie of axle 7 and 6 sliding connection of spacing calorie of leg, the outside of spacing calorie of axle 7 is provided with sealing layer 23, sealing layer 23 and 6 fixed connection of spacing calorie of leg.
The upper end of the installation base 1 of the embodiment is provided with a main body support 2, a main compass 15 is arranged inside the main body support 2, a compass control unit 16 is arranged inside the main body support 2, the main compass 15 comprises a three-axis fiber-optic gyroscope 8, a navigation resolving plate 9, a three-axis accelerometer 10, an information collecting plate 11 and a power interface board 12, the three-axis accelerometer 10 and the three-axis fiber-optic gyroscope 8 are integrally installed, the three-axis accelerometer 10 and the three-axis fiber-optic gyroscope 8 can ensure the consistency of the measurement of angular motion information and linear motion information of a ship, the accuracy of the device is increased, the output end of the three-axis fiber-optic gyroscope 8 is connected with the input end of the navigation resolving plate 9, the output end and the input end of the navigation resolving plate 9 are bidirectionally connected with the input end and the output end of the power interface board 12, the output end and the input end of the three-axis fiber-optic gyroscope 8 are bidirectionally connected with the input end and the output end of the power interface board 12, the output end and the input end of an information acquisition board 11 are bidirectionally connected with the input end and the output end of a power interface board 12, the output end and the input end of the information acquisition board 11 are bidirectionally connected with the input end and the output end of a three-axis accelerometer 10, the output end and the input end of a navigation resolving board 9 are bidirectionally connected with the input end and the output end of the information acquisition board 11, a compass control unit 16 comprises a signal conversion template 13 and a power module 14, the signal conversion template 13 is arranged to analyze course and state information of a main compass 15 and provide an NMEA0183 standard HEHDT course message to external equipment through a serial port of a connecting port 3, the output end and the input end of the signal conversion template 13 are bidirectionally connected with the input end and the output end of the power interface board 12, the output end of the power module 14 is connected with the input end of the power interface board 12, and the power interface board 12 is arranged to convert 24V direct current provided by the compass control unit 16 into a working power supply, the navigation information is provided to the outside through the connection port 3, and the input end of the signal conversion template 13 is connected with the output end of the power supply module 14.
Further, spacing calorie of axle 7 is close to one side of sealing layer 23 and is installed first leak protection pad 24, first leak protection pad 24 and spacing calorie of leg 6 fixed connection, spacing calorie of axle 7 is kept away from one side of spacing calorie of leg 6 and is installed second leak protection pad 25, second leak protection pad 25 and spacing calorie of axle 7 fixed connection, first leak protection pad 24 of installation and second leak protection pad 25 can make the device sealed, prevent that the inside hydraulic oil of device from spilling over the device, cause the change of device internal pressure, the practicality of reinforcing device. The top sealing gasket 18 is installed to the inside upper end of sealed anticorrosive cap of regulation 4, and top sealing gasket 18 and sealed anticorrosive cap of regulation 4 fixed connection, installation top sealing gasket 18 can further increase the sealing capacity of device, prevents that the inside hydraulic oil of device from revealing. Connecting port 3 is installed to the preceding terminal surface of main part support 2, connecting port 3 and main part support 2 fixed connection, and installation connecting port 3 is convenient for the staff to be connected device and device external equipment, makes the device use more convenient, guarantees the functional complete of device.
Further, the input end of the power interface board 12 is provided with a GPS, the input end of the GPS is connected to the input end of the power interface board 12, the input end of the power module 14 is provided with a 24VDC power supply and a 220VAC power supply, the input end of the power module 14 is connected to the 24VDC power supply and the 220VAC power supply through wires, the power interface board 12 is configured to convert the 24V dc power provided by the compass control unit 16 into a working power supply, and provide navigation information to the outside through the connection port 3.
The working principle is as follows: when the device is used, a worker clamps the device at the upper end of a mounting substrate, the limiting clamp legs 6 are clamped into the mounting substrate, then the worker injects hydraulic oil into the mounting cylinder 5, when the hydraulic oil level reaches four fifths of the height of the mounting cylinder 5, then the worker screws the sealing adjusting anti-corrosion cap 4 at the upper end of the mounting cylinder 5, the silica gel pushing block 22 is clamped into the mounting cylinder 5, along with the screwing of the sealing adjusting anti-corrosion cap 4, the elastic rubber block 20 pushes the silica gel pushing block 22 to continuously descend to extrude the hydraulic oil, so that the pressure of the hydraulic oil rises, then the hydraulic oil pushes the limiting clamp shaft 7 to extend out of the limiting clamp legs 6 to clamp the device, the device is provided with the connecting threads 17 to fix the sealing adjusting anti-corrosion cap 4, the sealing adjusting anti-corrosion cap 4 is prevented from loosening, the functional integrity of the device is ensured, and the mounting elastic rubber block 20 can push the silica gel pushing block 22 to move, the device has the advantages that hydraulic oil in the device can upwards push the silica gel propelling block 22 to reduce the pressure of the hydraulic oil, the buffering effect is achieved, the shock resistance of the device is improved, the device is prevented from being shocked, the hydraulic oil can push the sealing adjustment anti-corrosion cap 4 to be disengaged, the using effect of the device is enhanced, the limiting clamping shaft 7 can be installed to push the limiting clamping shaft 7 to move by using the hydraulic oil in the device, the device is clamped to be prevented from disengaging, the limiting clamping shaft 7 is adopted to clamp the device, a screw installation device is not needed, the device is installed more simply, conveniently and quickly, the device is prevented from disengaging at the same time, the long-term working capability of the device in a certain corrosive environment is ensured, the three-axis accelerometer 10 and the three-axis optical fiber gyroscope 8 are arranged to ensure the consistency of the measurement of angular motion information and linear motion information of a ship, the precision of the device is improved, and the course and state information of the main compass 15 can be analyzed by arranging the signal conversion template 13, provide NMEA0183 standard HEHDT course message to external equipment through 3 serial ports of connection port, guarantee the functional completeness of device, set up power source board 12 and change the 24V direct current that compass the control unit 16 provided into operating power supply, provide the navigation information to the outside through connection port 3, strengthen the practicality of device, installation first leak protection pad 24 and second leak protection pad 25 can make the device sealed, prevent that the inside hydraulic oil of device from spilling over the device, cause the change of device internal pressure, strengthen the practicality of device, installation top sealing pad 18 can further increase the sealing capacity of device, prevent that the inside hydraulic oil of device from revealing, installation connection port 3 is convenient for the staff and is connected device and device external equipment, make the device use more convenient, guarantee the functional completeness of device.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (8)

1. The utility model provides an optical fiber compass combination inertial navigation device, includes installation base (1), its characterized in that: the utility model discloses a sealing and sealing device, including installation base (1), terminal surface both sides all are provided with installation section of thick bamboo (5) around, installation section of thick bamboo (5) and installation base (1) fixed connection, the upper end of installation section of thick bamboo (5) outside is provided with connecting thread (17), connecting thread (17) and installation section of thick bamboo (5) fixed connection, connecting thread (17) externally mounted has sealed anticorrosive cap of regulation (4), fixed block (19) are installed to the upper end of sealed anticorrosive cap of regulation (4) inside, fixed block (19) and sealed anticorrosive cap of regulation (4) swivelling joint, elastic rubber piece (20) are installed to the lower extreme of fixed block (19), removal mounting panel (21) is installed to the lower extreme of removal mounting panel (21), silica gel impels piece (22) and removal mounting panel (21) fixed connection, spacing card leg (6) are all installed to the inside at both ends around installation base (1) lower extreme both sides, the internally mounted of spacing card leg (6) has spacing calorie of axle (7), the outside of spacing calorie of axle (7) is provided with sealing layer (23).
2. The integrated optical fiber compass navigation system according to claim 1, wherein: the upper end of the mounting base (1) is provided with a main body support (2), the main body support (2) is internally provided with a main compass (15), the main body support (2) is internally provided with a compass control unit (16), the main compass (15) comprises a three-axis fiber-optic gyroscope (8), a navigation resolving plate (9), a three-axis accelerometer (10), an information acquisition plate (11) and a power interface board (12), the output end of the three-axis fiber-optic gyroscope (8) is connected with the input end of the navigation resolving plate (9), the output end and the input end of the navigation resolving plate (9) are bidirectionally connected with the input end and the output end of the power interface board (12), the output end and the input end of the three-axis fiber-optic gyroscope (8) are bidirectionally connected with the input end and the output end of the power interface board (12), the output end and the input end of the information acquisition plate (11) are bidirectionally connected with the input end and the output end of the power interface board (12), the output end and the input end of the information acquisition board (11) are in bidirectional connection with the input end and the output end of the triaxial accelerometer (10), and the output end and the input end of the navigation resolving board (9) are in bidirectional connection with the input end and the output end of the information acquisition board (11).
3. The integrated optical fiber compass navigation system according to claim 2, wherein: the compass control unit (16) comprises a signal conversion template (13) and a power supply module (14), wherein the output end and the input end of the signal conversion template (13) are bidirectionally connected with the input end and the output end of the power interface board (12), the output end of the power supply module (14) is connected with the input end of the power interface board (12), and the input end of the signal conversion template (13) is connected with the output end of the power supply module (14).
4. The integrated optical fiber compass navigation system according to claim 1, wherein: spacing calorie of axle (7) are close to one side of sealing layer (23) and install first leak protection pad (24), first leak protection pad (24) and spacing calorie of leg (6) fixed connection, spacing calorie of axle (7) is kept away from one side of spacing calorie of leg (6) and is installed second leak protection pad (25), second leak protection pad (25) and spacing calorie of axle (7) fixed connection.
5. The integrated optical fiber compass navigation system according to claim 1, wherein: a top sealing gasket (18) is installed at the upper end of the inside of the sealing regulation anticorrosion cap (4), and the top sealing gasket (18) is fixedly connected with the sealing regulation anticorrosion cap (4).
6. The integrated optical fiber compass navigation system according to claim 2, wherein: the front end face of the main body support (2) is provided with a connecting port (3), and the connecting port (3) is fixedly connected with the main body support (2).
7. The integrated optical fiber compass navigation system according to claim 3, wherein: the input end of the power interface board (12) is provided with a GPS, and the input end of the GPS is connected with the input end of the power interface board (12).
8. The integrated optical fiber compass navigation system according to claim 3, wherein: the input end of the power supply module (14) is provided with 24VDC and 220VAC power supplies, and the input end of the power supply module (14) is connected with the 24VDC and 220VAC power supply input ends through wires.
CN202110986300.1A 2021-08-26 2021-08-26 Optical fiber compass combined inertial navigation device Active CN113884092B (en)

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CN213117862U (en) * 2020-06-17 2021-05-04 中石化江汉油建工程有限公司 Pipeline sealing connecting device for petrochemical
CN212398361U (en) * 2020-06-21 2021-01-26 无锡斯丹迪机械有限公司 Hydraulic automatic positioning device of numerical control machine tool
CN212850348U (en) * 2020-08-04 2021-03-30 扬州工业职业技术学院 Multi-lamination solar cell convenient to mount
CN212947188U (en) * 2020-09-04 2021-04-13 安徽新强新家具有限公司 Wood board burnishing device is used in processing of wood furniture
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