CN113028294A - Glass fibre reinforced plastic pipeline positioning instrument - Google Patents
Glass fibre reinforced plastic pipeline positioning instrument Download PDFInfo
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- CN113028294A CN113028294A CN202011453596.2A CN202011453596A CN113028294A CN 113028294 A CN113028294 A CN 113028294A CN 202011453596 A CN202011453596 A CN 202011453596A CN 113028294 A CN113028294 A CN 113028294A
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- positioning
- sliding
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- component
- rod
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M7/00—Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Actuator (AREA)
Abstract
The glass fiber reinforced plastic pipeline positioning instrument comprises a rack, an air pressure component, a horizontal plane positioning component and a pipeline positioning component; the air pressure component and the horizontal plane positioning component are arranged on the rack; the pipeline positioning component is arranged at the positioning end of the rack and communicated with the air pressure component. The telescopic air bag is inflated by the sliding plate and the inflating part at the handle through the arrangement of the air pressure component and the pipeline positioning component, so that the buffer plate and the positioning plate are positioned according to the shape of the glass fiber reinforced plastic pipeline, the positioning efficiency and accuracy are improved, the telescopic air bag is locked, the air valve is closed, the shape of the glass fiber reinforced plastic pipeline is integrally transferred, and observation and measurement are facilitated; the horizontal plane positioning assembly is arranged to play a role in positioning the whole device, and the telescopic plate is arranged, so that the positioning range of the horizontal plate is wider, and the universal applicability of the invention is stronger; through setting up diameter measurement subassembly, the staff of being convenient for is when the location to the basic data of FRP pipe record, improves work efficiency.
Description
Technical Field
The invention relates to the technical field of pipeline positioning, in particular to a glass fiber reinforced plastic pipeline positioning instrument.
Background
The pipeline locator detects the position of an underground metal pipeline and a cable by using the theory of electromagnetic signals. The pipeline positioning instrument is mainly used for providing guarantee for safe excavation, identifying the type of underground facilities by means of the instrument, and identifying and tracking the underground facilities according to the characteristics of the facilities. When the underground facilities are identified and tracked, an operator can quickly and accurately complete the tasks of plane positioning and pipeline diameter measurement on the underground facilities by using the instrument, thereby preparing for the next mining and construction.
The pipeline positioning instrument in the prior art is high in cost, not beneficial to general popularization, difficult to use and operate, incapable of conducting good positioning measurement on the outer wall of the glass fiber reinforced plastic pipeline, poor in overall precision, high in error, high in learning cost and single in function.
Disclosure of Invention
Objects of the invention
In order to solve the technical problems in the background art, the invention provides a fiber reinforced plastic pipeline positioning instrument, wherein an air pressure component and a pipeline positioning component are arranged, a sliding plate and an inflating part at a handle are used for inflating a telescopic air bag, so that a buffer plate and a positioning plate are positioned according to the shape of a fiber reinforced plastic pipeline, the positioning efficiency and accuracy are improved, and the shape of the fiber reinforced plastic pipeline is integrally transferred out by locking the telescopic air bag and closing an air valve, so that the observation and measurement are convenient; the horizontal plate is placed on the horizontal plane through the arrangement of the horizontal plane positioning assembly to play a role in positioning the whole device, and the telescopic plate sliding on the horizontal plate is arranged, so that the positioning range of the horizontal plate is wider, and the universal applicability of the invention is stronger; through setting up diameter measurement subassembly, utilize first direction loop bar and slide bar, drive the measuring stick and measure the diameter of FRP pipe, the staff of being convenient for is taken notes the basic data of FRP pipe in the location, improves work efficiency.
(II) technical scheme
The invention provides a fiber reinforced plastic pipeline positioning instrument which comprises a rack, an air pressure component, a horizontal plane positioning component and a pipeline positioning component, wherein the air pressure component is arranged on the rack; the air pressure component and the horizontal plane positioning component are arranged on the rack; the pipeline positioning component is arranged at the positioning end of the frame and communicated with the air pressure component; the air pressure component comprises a grip, a sliding plate, a sliding rail, a first elastic part, an inflating tube and an air bag; the grip is arranged on the frame; one end of the sliding rail is arranged on the grip, and the other end of the sliding rail is arranged on the rack; the sliding plate is arranged on the sliding rail in a sliding manner; one end of the first elastic component is arranged on the sliding plate, and the other end of the first elastic component is arranged on the grip; one end of the inflating piece is arranged on the sliding plate, and the other end of the inflating piece is communicated with the rack; the inflation tube is communicated with the inflation piece and is arranged on the frame; the air bag is arranged at the positioning end of the frame and is communicated with the inflating part and the pipeline positioning assembly; the horizontal plane positioning component comprises a horizontal plate, a telescopic plate, a knob, a threaded rod and a sliding sleeve rod; the horizontal plate is arranged on the frame; the telescopic plates are arranged in a plurality of groups, are arranged in parallel with the horizontal plate and are arranged on the horizontal plate in a sliding manner; the sliding sleeve rod is arranged on the horizontal plate; the threaded rod is arranged on the sliding sleeve rod in a sliding manner; the knob is in threaded connection with the threaded rod, is arranged on the sliding sleeve rod and is in sliding connection with the sliding sleeve rod; the pipeline positioning assemblies are arranged in a plurality of groups, and each group of pipeline positioning assemblies comprises a telescopic air bag, a positioning plate, a buffer plate and a second elastic component; the telescopic air bag is arranged on the frame and is communicated with the air bag; the positioning plate is arranged at one end of the telescopic air bag far away from the frame; the second elastic component is arranged on the positioning plate; the buffer plate is arranged at one end of the second elastic component far away from the frame.
Preferably, the device further comprises a diameter measuring component; the diameter measuring assembly is arranged on the rack and comprises a first guide sleeve rod, a sliding rod, a first elastic part and a measuring rod; the first guide sleeve rod is arranged on the rack; the sliding rods are arranged at two ends of the first guide sleeve rod in a sliding manner and are connected with the rack in a sliding manner; the first elastic part is arranged in the first guide sleeve rod, and two ends of the first elastic part are respectively connected to the ends, close to each other, of the two groups of sliding rods; the measuring rod is arranged on the sliding rod.
Preferably, the sliding rod is provided with scale marks.
Preferably, the sliding rod is provided with a clamping block; the fixture block is clamped with the first guide sleeve rod.
Preferably, the lower end of the horizontal positioning component is provided with an anti-slip layer.
Preferably, the inflation piece is provided with a gas valve.
Preferably, the first elastic part and the second elastic part have the same structure and comprise a second guide sleeve rod, a second elastic part and a connecting rod; the connecting rod is sleeved on the second guide sleeve rod in a sliding manner; one end of the second elastic part is connected to the second guide sleeve rod, and the other end of the second elastic part is connected to the connecting rod.
Preferably, the grip is provided with anti-skid lines.
Preferably, the sliding plate is provided as an arc-shaped plate.
Compared with the prior art, the technical scheme of the invention has the following beneficial technical effects:
the telescopic air bag is inflated by the sliding plate and the inflating part at the handle through the arrangement of the air pressure component and the pipeline positioning component, so that the buffer plate and the positioning plate are positioned according to the shape of the glass fiber reinforced plastic pipeline, the positioning efficiency and accuracy are improved, the telescopic air bag is locked, the air valve is closed, the shape of the glass fiber reinforced plastic pipeline is integrally transferred, and observation and measurement are facilitated; the structure is simple, the cost is low, and the large-scale popularization is facilitated;
secondly, the horizontal plate is placed on the horizontal plane through the arrangement of the horizontal plane positioning assembly to play a role in positioning the whole device, and the telescopic plate sliding on the horizontal plate is arranged, so that the positioning range of the horizontal plate is wider, and the universal applicability of the invention is stronger;
third, through setting up diameter measurement subassembly, utilize first direction loop bar and slide bar, drive the measuring stick and measure the diameter of FRP pipe, the staff of being convenient for is taken notes the basic data of FRP pipe in the location, improves work efficiency.
Drawings
Fig. 1 is a schematic structural diagram of a glass steel pipeline positioning instrument according to the present invention.
FIG. 2 is a cross-sectional view of a FRP pipe positioner according to the present invention.
FIG. 3 is a top view of the positioning apparatus for FRP pipe according to the present invention.
FIG. 4 is a partial front view of a FRP pipe positioner according to the present invention.
Fig. 5 is a partially enlarged view of a portion a in fig. 2.
Fig. 6 is a partially enlarged view of fig. 2 at B.
FIG. 7 is a schematic structural diagram of a first elastic member and a second elastic member in the FRP pipe positioner according to the present invention.
Reference numerals: 1. a frame; 2. an air pressure assembly; 3. a horizontal plane positioning assembly; 4. a diameter measurement assembly; 5. a pipe positioning assembly; 6. a grip; 7. a sliding plate; 8. a slide rail; 9. a first elastic member; 10. an inflatable member; 11. an air valve; 12. an inflation tube; 13. an air bag; 14. a horizontal plate; 15. a retractable plate; 16. an anti-slip layer; 17. a knob; 18. a threaded rod; 19. sliding the loop bar; 20. a first guide loop bar; 21. a slide bar; 22. a first elastic member; 23. a clamping block; 24. a measuring rod; 25. scale lines; 26. a telescopic air bag; 27. Positioning a plate; 28. a buffer plate; 29. a second elastic member; 30. a second guide loop bar; 31. a second elastic member; 32. a connecting rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1 to 7, the fiber reinforced plastic pipe positioner provided by the present invention comprises a frame 1, an air pressure component 2, a horizontal plane positioning component 3 and a pipe positioning component 5; the air pressure component 2 and the horizontal plane positioning component 3 are arranged on the frame 1; the pipeline positioning component 5 is arranged at the positioning end of the frame 1 and communicated with the air pressure component 2; the pneumatic assembly 2 comprises a handle 6, a sliding plate 7, a sliding rail 8, a first elastic part 9, an inflating part 10, an inflating tube 12 and an air bag 13; the handle 6 is arranged on the frame 1; one end of the slide rail 8 is arranged on the grip 6, and the other end is arranged on the frame 1; the sliding plate 7 is arranged on the sliding rail 8 in a sliding manner; one end of the first elastic component 9 is arranged on the sliding plate 7, and the other end is arranged on the handle 6; one end of the inflating piece 10 is arranged on the sliding plate 7, and the other end is communicated with the frame 1; the inflation tube 12 is communicated with the inflation piece 10 and is arranged on the frame 1; the air bag 13 is arranged at the positioning end of the frame 1 and is communicated with the inflation piece 10 and the pipeline positioning assembly 5; the horizontal plane positioning component 3 comprises a horizontal plate 14, a telescopic plate 15, a knob 17, a threaded rod 18 and a sliding sleeve rod 19; the horizontal plate 14 is arranged on the frame 1; the telescopic plates 15 are arranged in a plurality of groups, are arranged in parallel with the horizontal plate 14 and are arranged on the horizontal plate 14 in a sliding manner; the sliding sleeve rod 19 is arranged on the horizontal plate 14; the threaded rod 18 is arranged on the sliding sleeve rod 19 in a sliding mode; the knob 17 is in threaded connection with the threaded rod 18, is arranged on the sliding sleeve rod 19 and is in sliding connection with the sliding sleeve rod 19; the pipeline positioning assemblies 5 are arranged in multiple groups, and each group of pipeline positioning assemblies 5 comprises a telescopic air bag 26, a positioning plate 27, a buffer plate 28 and a second elastic part 29; the telescopic air bag 26 is arranged on the frame 1 and is communicated with the air bag 13; the positioning plate 27 is arranged at one end of the telescopic air bag 26 far away from the frame 1; the second elastic member 29 is disposed on the positioning plate 27; the damping plate 28 is arranged at the end of the second elastic member 29 remote from the frame 1.
In an alternative embodiment, a diameter measuring assembly 4 is also included; the diameter measuring assembly 4 is arranged on the machine frame 1, and the diameter measuring assembly 4 comprises a first guide sleeve rod 20, a sliding rod 21, a first elastic part 22 and a measuring rod 24; the first guide sleeve rod 20 is arranged on the frame 1; the sliding rods 21 are arranged at two ends of the first guide sleeve rod 20 in a sliding manner and are connected with the machine frame 1 in a sliding manner; the first elastic piece 22 is arranged in the first guide sleeve rod 20, and two ends of the first elastic piece 22 are respectively connected with the ends, close to each other, of the two groups of sliding rods 21; the measuring rod 24 is arranged on the sliding rod 21; the diameter measuring component 4 is arranged, and the sliding rod 21 slides in the first guide sleeve rod 20 to drive the measuring rod 24 to measure the diameter of the glass steel tube.
In an alternative embodiment, the slide bar 21 is provided with graduation marks 25; the scale lines 25 are provided to facilitate the reading of the diameter by the worker.
In an alternative embodiment, the slide rod 21 is provided with a latch 23; the fixture block 23 is clamped with the first guide sleeve rod 20; the fixture block 23 is arranged to prevent the sliding rod 21 from falling off the first guide sleeve rod 20.
In an alternative embodiment, the lower end of the horizontal positioning member 3 is provided with an anti-slip layer 16 to facilitate the positioning of the horizontal plate 14 on the horizontal plane.
In an alternative embodiment, the inflation member 10 is provided with an air valve 11; the ventilation and the closing of the telescopic air bag in the device are controlled by closing and opening the air valve 111, so that the positioning measurement and the recording of the shape of the glass fiber reinforced plastic pipeline are realized.
In an alternative embodiment, the first elastic member 9 and the second elastic member 29 are identical in structure, and include a second guide sleeve rod 30, a second elastic member 31 and a connecting rod 32; the connecting rod 32 is sleeved on the second guide sleeve rod 30 in a sliding manner; one end of the second elastic member 31 is connected to the second guide sleeve bar 30, and the other end is connected to the connecting bar 32.
In an alternative embodiment, the grip 6 is provided with anti-slip threads.
In an alternative embodiment the sliding plate 7 is provided as an arc-shaped plate.
The use principle of the invention is as follows: adjusting the telescopic plate 15 to position the horizontal plane positioning component 3 on the horizontal plane above the glass fiber reinforced plastic pipeline; the pipeline positioning component 5 is contacted with the glass fiber reinforced plastic pipeline, and the buffer plate 28 is attached to the outer surface of the glass fiber reinforced plastic pipeline; holding the grip 6, pressing the sliding plate 7 by fingers, and driving the inflating part 10 to inflate the airbag 13; because the telescopic air bag 26 is communicated with the air bag 13; the gas enters the telescopic air bag 26, so that the buffer plate 28 and the positioning plate 27 are in contact with the glass fiber reinforced plastic pipeline as much as possible; when the air valve 11 is not inflated, the air valve is closed to fix the telescopic air bag 28, the frame 1 is taken out, and the positioning result of the glass fiber reinforced plastic pipe is analyzed according to the relative positions of the plurality of groups of the buffer plates 28 and the positioning plate 27.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (9)
1. The glass fiber reinforced plastic pipeline positioning instrument is characterized by comprising a rack (1), an air pressure component (2), a horizontal plane positioning component (3) and a pipeline positioning component (5); the air pressure component (2) and the horizontal plane positioning component (3) are arranged on the rack (1); the pipeline positioning component (5) is arranged at the positioning end of the rack (1) and is communicated with the air pressure component (2);
the air pressure component (2) comprises a grip (6), a sliding plate (7), a sliding rail (8), a first elastic part (9), an inflation piece (10), an inflation tube (12) and an air bag (13); the handle (6) is arranged on the frame (1); one end of the sliding rail (8) is arranged on the grip (6), and the other end is arranged on the frame (1); the sliding plate (7) is arranged on the sliding rail (8) in a sliding manner; one end of the first elastic component (9) is arranged on the sliding plate (7), and the other end is arranged on the grip (6); one end of the inflating piece (10) is arranged on the sliding plate (7), and the other end is communicated with the frame (1); the inflation tube (12) is communicated with the inflation piece (10) and is arranged on the frame (1); the air bag (13) is arranged at the positioning end of the frame (1) and is communicated with the inflatable part (10) and the pipeline positioning component (5);
the horizontal plane positioning component (3) comprises a horizontal plate (14), a telescopic plate (15), a knob (17), a threaded rod (18) and a sliding sleeve rod (19); the horizontal plate (14) is arranged on the frame (1); the telescopic plates (15) are arranged in a plurality of groups, are arranged in parallel with the horizontal plate (14), and are arranged on the horizontal plate (14) in a sliding manner; the sliding loop bar (19) is arranged on the horizontal plate (14); the threaded rod (18) is arranged on the sliding sleeve rod (19) in a sliding manner; the knob (17) is in threaded connection with the threaded rod (18), is arranged on the sliding sleeve rod (19), and is in sliding connection with the sliding sleeve rod (19);
the pipeline positioning assemblies (5) are arranged in multiple groups, and each group of pipeline positioning assemblies (5) comprises a telescopic air bag (26), a positioning plate (27), a buffer plate (28) and a second elastic component (29); the telescopic air bag (26) is arranged on the frame (1) and is communicated with the air bag (13); the positioning plate (27) is arranged at one end of the telescopic air bag (26) far away from the rack (1); the second elastic component (29) is arranged on the positioning plate (27); the buffer plate (28) is arranged at one end of the second elastic component (29) far away from the frame (1).
2. The FRP pipe positioner according to claim 1, further comprising a diameter measuring unit (4); the diameter measuring component (4) is arranged on the rack (1), and the diameter measuring component (4) comprises a first guide sleeve rod (20), a sliding rod (21), a first elastic part (22) and a measuring rod (24); the first guide sleeve rod (20) is arranged on the rack (1); the sliding rods (21) are arranged at two ends of the first guide sleeve rod (20) in a sliding manner and are connected with the rack (1) in a sliding manner; the first elastic piece (22) is arranged in the first guide sleeve rod (20), and two ends of the first elastic piece (22) are respectively connected to the ends, close to each other, of the two groups of sliding rods (21); the measuring rod (24) is arranged on the sliding rod (21).
3. The FRP pipe positioner according to claim 2, wherein the slide bar (21) is provided with scale marks (25).
4. The FRP pipe positioner according to claim 2, wherein the slide rod (21) is provided with a fixture block (23); the clamping block (23) is clamped with the first guide sleeve rod (20).
5. The FRP pipe positioner according to claim 1, wherein the lower end of the horizontal plane positioning component (3) is provided with an anti-slip layer (16).
6. The FRP pipe positioner according to claim 1, wherein the air valve (11) is provided on the air filling member (10).
7. The FRP pipe positioner according to claim 1, wherein the first elastic member (9) and the second elastic member (29) have the same structure and comprise a second guide sleeve rod (30), a second elastic member (31) and a connecting rod (32); the connecting rod (32) is sleeved on the second guide sleeve rod (30) in a sliding manner; one end of the second elastic piece (31) is connected to the second guide sleeve rod (30), and the other end is connected to the connecting rod (32).
8. The FRP pipe positioner according to claim 1, wherein the grip (6) is provided with anti-skid lines.
9. Glass-reinforced pipeline positioning instrument according to claim 1, characterized in that the slide plate (7) is provided as an arc plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011453596.2A CN113028294A (en) | 2020-12-12 | 2020-12-12 | Glass fibre reinforced plastic pipeline positioning instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011453596.2A CN113028294A (en) | 2020-12-12 | 2020-12-12 | Glass fibre reinforced plastic pipeline positioning instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113028294A true CN113028294A (en) | 2021-06-25 |
Family
ID=76459183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011453596.2A Pending CN113028294A (en) | 2020-12-12 | 2020-12-12 | Glass fibre reinforced plastic pipeline positioning instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113028294A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105523A (en) * | 2018-02-06 | 2018-06-01 | 钦州学院 | Air heave type Combined joint based on ship |
| WO2018130656A1 (en) * | 2017-01-13 | 2018-07-19 | Ignident Gmbh | Device and method for measuring a movement of a mandible |
| CN108648603A (en) * | 2018-05-06 | 2018-10-12 | 北京工业大学 | A kind of air bag-supporting test device of simulation tunnel partial excavation |
| CN209991932U (en) * | 2019-04-04 | 2020-01-24 | 河北锦杰安装工程有限公司 | Pipeline diameter measuring device |
-
2020
- 2020-12-12 CN CN202011453596.2A patent/CN113028294A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018130656A1 (en) * | 2017-01-13 | 2018-07-19 | Ignident Gmbh | Device and method for measuring a movement of a mandible |
| CN108105523A (en) * | 2018-02-06 | 2018-06-01 | 钦州学院 | Air heave type Combined joint based on ship |
| CN108648603A (en) * | 2018-05-06 | 2018-10-12 | 北京工业大学 | A kind of air bag-supporting test device of simulation tunnel partial excavation |
| CN209991932U (en) * | 2019-04-04 | 2020-01-24 | 河北锦杰安装工程有限公司 | Pipeline diameter measuring device |
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Application publication date: 20210625 |