CN214121078U - Multi-point displacement meter capable of reducing winding of measuring wire - Google Patents
Multi-point displacement meter capable of reducing winding of measuring wire Download PDFInfo
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- CN214121078U CN214121078U CN202022481506.2U CN202022481506U CN214121078U CN 214121078 U CN214121078 U CN 214121078U CN 202022481506 U CN202022481506 U CN 202022481506U CN 214121078 U CN214121078 U CN 214121078U
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- support ring
- fluke
- winding
- displacement meter
- protective tube
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 37
- 238000004804 winding Methods 0.000 title claims abstract description 22
- 230000001681 protective effect Effects 0.000 claims abstract description 35
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 6
- 239000007787 solid Substances 0.000 claims abstract description 3
- 238000007142 ring opening reaction Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 13
- 238000002474 experimental method Methods 0.000 abstract description 10
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- 241000242541 Trematoda Species 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
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- 238000005345 coagulation Methods 0.000 description 1
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- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
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- 230000000007 visual effect Effects 0.000 description 1
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- Testing Or Calibration Of Command Recording Devices (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The utility model discloses a reduce and survey winding multiple spot displacement meter of silk to solve the slippage problem of surveying the silk when the winding of silk and experiment are surveyed in the equipment process. The multi-point displacement meter system comprises an anchor fluke, a protective pipe, a support ring, a pulley, a measuring wire, a grating ruler, a heavy hammer, a multi-path grating data acquisition instrument, an acquisition system and a fixed steel frame. The protective pipe is a device which is buried in a soil body and protects the wire, and the inner wall and the outer wall of the protective pipe are respectively provided with a rail bar and a red and blue marking line; the support ring is a device which is arranged in the protective tube and used for fixing the measuring wire, and is a three-hole solid polytetrafluoroethylene short tube with a groove; the anchor fluke is connected with the testing wire and embedded around the test piece, and is a structure with a hole in the center and clamping grooves on the periphery; the pulley is used for positioning the direction of the wire outside the protective pipe and is a directional pulley with a groove track in the middle. The utility model discloses can effectively reduce the winding of survey silk in the pillar, increase the sensitivity of displacement meter.
Description
Technical Field
The utility model relates to an improve multiple spot displacement meter of partial component belongs to one kind and easily assembles more, can the error reduction, increases displacement meter sensitivity's detection country rock deformation displacement device.
Background
In geomechanical experiments, a multipoint displacement meter is often used when measuring and calculating the slip collapse deformation condition of surrounding rocks. The multi-point displacement meter is more sensitive, the cost is lower, the instrument setting is convenient and fast, the measurement and calculation are convenient and visual, and the multi-point displacement meter is widely popularized and applied in geomechanics experiments including surrounding rock roadway deformation.
At present, in actual engineering, a drilling measurement technology is usually adopted to measure displacement, namely, measurement base points are arranged according to faults, cracks and exposed slope surfaces and dam foundations of rock masses, high slopes and landslides, and different depths of the top of a surrounding rock of an underground cavern and two sides of a side wall, so that axial displacement and distributed deformation of measurement points and hole base points at different depths are detected and calculated.
In a geomechanical model test in a laboratory, a method of pre-embedding a multipoint displacement meter is generally adopted for conveniently detecting and calculating data. And connecting the other side of the grating ruler with the heavy hammer, then connecting the grating ruler with a multi-path optical cable data acquisition instrument, connecting the data acquisition instrument with an acquisition system, and detecting and calculating data through the acquisition system. Because the indoor experimental space is limited, the mutual interference between the measuring devices is large, accurate reading cannot be achieved, and a testing instrument which is more accurate, practical and higher in sensitivity is required to be designed.
For example, the utility model patent application No. CN201420844889.7 discloses a multipoint displacement meter experimental system, the screw passes through the nut and is connected with the steel wire, and the equipment of the displacement meter of being convenient for read also can avoid the screw simultaneously and slide with the steel wire. The steel wire passes through little sleeve pipe parcel, can avoid the coagulation of steel wire and experiment filler material and the mutual influence between the many steel wires, but this patent does not consider the influence of the winding of steel wire in the multiple spot displacement meter in the equipment process to instrument sensitivity and precision.
The multipoint displacement meter needs to pay attention to avoid errors caused by winding of the measuring wire in the using process, and the errors caused in the assembling process can also have great influence on the precision of an experiment. Therefore, there is a need for an improved device that can effectively reduce the difficulty of assembly during installation, minimize wire entanglement, and increase the sensitivity of the device.
Disclosure of Invention
The utility model aims at designing an easily equipment more, can reducing the experimental error, improve the multiple spot displacement meter of instrument sensitivity, the device of the multiple spot displacement meter that is applicable to indoor geomechanical experiment and uses improves the design. To equipment, the anchor fluke of multipoint displacement meter pillar tie up firmly and survey the problem that the silk produced in being connected with the grating chi, the utility model discloses carry out further improvement to can effectively avoid the winding between the assembly in-process survey line, reduce the degree of difficulty of equipment multipoint displacement meter, improve the precision and the sensitivity of instrument.
The utility model relates to a reduce and survey winding multiple spot displacement meter of silk, the structure of multiple spot displacement meter system is: the anchor fluke, pillar, stay tube, pulley, survey silk, grating chi, weight, multichannel grating data acquisition appearance, collection system, fixed steelframe. The multi-point displacement meter comprises an anchor fluke, a protective pipe, a support ring, a pulley and a measuring wire. During the assembly process, firstly, three measuring wires respectively penetrate through three supporting ring openings of the supporting ring, then, a T-shaped rail bar and a marking line of the supporting ring corresponding to the protective tube are pushed into the central position of the protective tube by using hard steel wires, then, a connecting device is used for connecting multiple sections of short protective tubes into required lengths according to experimental requirements, and the special description is that when the multiple sections of protective tubes are connected, attention also needs to be paid to butt joint red and blue color code marking lines corresponding to the outer wall of the protective tube, and finally, one end of the measuring wire exposed out of the protective tube is connected with an upper anchor claw, and the other end of the measuring wire is connected with a grating ruler through a pulley.
The T-shaped raised rail is added to the inner wall of the protective tube, the length of the T-shaped raised rail extends to the full length of the protective tube, the area of the T-shaped raised rail is 1/20 of the area of the protective tube, the difficulty of a force transmission measuring wire in the assembling process can be reduced, and the winding of a force transmission steel wire caused by the fact that a support ring slides in the protective tube in the assembling process is reduced.
The two sides of the outer wall of the protection tube corresponding to the protection tube rail bar are respectively marked with blue and red marking lines, so that the support ring can be prevented from being reversed with the corresponding position of the measuring wire in the installation process.
The support ring is solid foraminiferous tubule, adopts the polytetrafluoroethylene material, and length is 5mm, can reduce the frictional force of support ring as far as possible to survey the gliding influence of silk. And a T-shaped groove corresponding to the protective tube is reserved, so that the support ring can be prevented from sliding off and rotating in the protective tube.
The fluke is the plum blossom column structure that has six parts length and width to be 5mm 3mm billet all around, and the fluke is that the central trompil of fluke center that diameter 1.5mm is left for center department, and thickness is 1.5 mm's metal steel sheet, can guarantee to survey the silk atress even, and the sensitivity of displacement meter is higher. And under the fluke billet, the interval is left length and is 2mm, and inclination is 45, and the width is fluke draw-in groove mouth of 0.2mm, can be swiftly and firm fixed survey silk more to the fixed condition of guaranteeing to survey the silk is good, and can save material. The pulley is the pulley of the orbital polytetrafluoroethylene material of pulley that has the recess, can avoid surveying the silk and follow directional pulley landing in the measurement process.
The utility model relates to a reduce survey wire winding's multiple spot displacement meter's construction method does:
1. the method comprises the following steps that three measuring wires penetrate through a support ring, then a rail bar on a corresponding protection pipe of the support ring and a T-shaped groove on the support ring are assembled, the support ring is pushed to the center of the protection pipe by a hard steel wire after the assembly is finished, a plurality of sections of short protection pipes are connected into a required length according to experimental requirements by using a connecting device, when the plurality of sections of protection pipes are connected, attention needs to be paid to the butt joint of red and blue color code injection lines corresponding to the outer wall of the protection pipe, the main function is to prevent dislocation between the protection pipes during installation and avoid winding of the measuring wires, and finally, a waterproof adhesive tape is used for sealing between the protection pipe and the protection pipe;
2. after the protective pipes are installed and connected, one end of the extension wire penetrates through a central hole of the anchor fluke and winds around anchor fluke clamping notches on the periphery to fix the anchor fluke;
3. and arranging the anchor flukes around the model or in the detected soil body, fixing the positions of the anchor flukes, and filling soil after arranging the protective pipes. After the filling soil is tamped, the measuring wire exposed outside the soil body is connected and placed on the grating ruler of the fixed steel frame through the pulley, and then the grating ruler is connected with the heavy hammer, the multi-path grating data acquisition system instrument and the acquisition system. And finally, opening the supercharging device, and acquiring complete data and calculation results on an acquisition system.
The utility model relates to a reduce and survey winding multiple spot displacement meter of silk's advantage is:
1. the protective tube with the T-shaped rail bar and the support ring with the T-shaped groove can prevent the support ring from rotating in the assembling and using processes, and the winding of the measuring wire caused by rotation is avoided;
2. the length of the support ring is controlled to be 5mm, and the polytetrafluoroethylene material with smaller friction coefficient is used, so that the friction force between the measuring wire and the support ring can be reduced, the sensitivity of an instrument is increased, and the calculation data is more accurate;
3. the rail bar of the protective tube, the groove of the support ring and the blue and red color mark lines on the left side and the right side of the two components can be correspondingly installed in the installation process, the positions and the directions of the three measuring wires in the semitransparent protective tube can be distinguished in the installation process, and the steel wires are prevented from being wound;
4. the plum blossom-shaped anchor fluke with the opening at the center and the grooves at the periphery can fix the measuring wire at the center of the steel sheet, so that the anchor fluke is convenient to bind the measuring wire, the slippage between the anchor fluke and the measuring wire can be effectively avoided, and the sensitivity of an instrument can be increased;
5. the pulley with the groove track can prevent the measuring wire from sliding off the directional pulley in the measuring process.
Drawings
Fig. 1 is a schematic view of the structural principle of the multi-point displacement meter system of the present invention;
FIG. 2 is an enlarged view of the fluke of the present invention;
FIG. 3 is an enlarged schematic view of the protective tube of the present invention;
fig. 4 is an enlarged schematic view of the support ring of the present invention;
FIG. 5 is an enlarged perspective view of the novel pulley of the present experiment;
fig. 6 is a schematic view of the novel multipoint displacement meter of the present experiment.
Illustration of the drawings: 1-a fluke; 2-protecting the pipe; 3-a support ring; 4-a pulley; 5-measuring silk; 6-grating ruler; 7-weight dropper; 8-a multi-channel grating data acquisition instrument; 9-an acquisition system; 10-fixing a steel frame; 101-a fluke steel bar; 102-a central opening of the fluke; 103-anchor jaw catch notch; 201-mark line; 202-T rail; 301-T shaped grooves; 302-support ring opening; 401-pulley track.
Detailed Description
The following will describe in further detail the novel multi-point displacement meter with reduced wire winding in the present experiment with reference to fig. 1-5.
With reference to fig. 1-5, the support ring (3) is penetrated by three wires (5), the support ring (3) is assembled with the T-shaped rail (202) on the corresponding protection tube (2) and the T-shaped groove (301) on the support ring (3), after the assembly, the support ring (3) is pushed to the center of the protection tube (2) by a hard steel wire, the multiple short protection tubes (2) are connected into a required length according to the experimental requirements by using a connecting device, when the multiple protection tubes (2) are connected, attention needs to be paid to the butt joint of the red and blue color mark lines (201) on the outer wall of the corresponding protection tube (2), the main functions are to prevent dislocation between the protection tubes (2) during installation, avoid winding of the wires (5), and finally, the protection tubes and the protection tubes are sealed by waterproof adhesive tapes, and the main functions are to prevent the protection tubes (2) from falling off and prevent sandy soil and corrosive substances from entering the protection tubes.
After the protective pipes (2) are installed and connected, one end of the extension wire (5) needs to penetrate through a fluke center opening hole (102) in the middle of the fluke (1) and wind around anchor fluke clamping groove openings (103) on the periphery to fix the fluke (1).
In the experiment, the anchor flukes (1) are arranged around the model or in the detected soil body in combination with the figure 1, after the positions of the anchor flukes (1) are fixed, the protective pipes (2) are placed, and then soil filling is carried out. After filling and tamping, the measuring wire (5) exposed outside the soil body is connected and placed on the grating ruler (6) of the fixed steel frame (10) through the pulley (4), and then the grating ruler (6) is connected with the heavy hammer (7), the multi-path grating data acquisition system instrument (8) and the acquisition system (9). And finally, opening the supercharging device, and acquiring complete data and calculation results on an acquisition system.
Claims (6)
1. The multipoint displacement meter capable of reducing winding of the measuring wire is characterized by comprising a fluke (1), a protective tube (2), a support ring (3), a pulley (4) and the measuring wire (5), wherein the measuring wire (5) penetrates through a support ring opening (302) of the support ring (3), then a T-shaped groove (301) of the support ring (3) is assembled corresponding to a T-shaped rail bar (202) and a marking line (201) of the protective tube (2), and the support ring (3) is located at the center of the protective tube (2); one end of the measuring wire (5) extending out of the protective tube (2) is connected with the anchor fluke (1), and the other end of the measuring wire (5) is connected with the grating ruler (6) through the pulley (4).
2. The multipoint displacement gauge for reducing the winding of the wire according to claim 1, wherein a T-shaped rail (202) is added to the inner wall of the protective tube (2), the length of the T-shaped rail extends to the full length of the protective tube (2), and the area of the T-shaped rail is 1/20 of the area of the protective tube (2).
3. The multipoint displacement meter for reducing the winding of the measuring wire as claimed in claim 1, characterized in that the two sides of the outer wall of the protective tube (2) are respectively provided with a marking line (201).
4. The multipoint displacement meter for reducing the winding of the measuring wire according to claim 1, wherein the support ring (3) is a solid thin tube with support ring openings (302), the support ring (3) is made of polytetrafluoroethylene and has a length of 5mm, the support ring (3) is provided with T-shaped grooves (301) corresponding to the protective tube (2), and the T-shaped grooves (301) are provided with three support ring openings (302) with a diameter of 0.5 mm.
5. The multipoint displacement meter for reducing the winding of the measuring wire according to claim 1, wherein the fluke (1) is of a structure that six parts of fluke steel strips (101) with the length and the width of 5mm x 3mm are arranged on the periphery, a fluke central opening (102) with the diameter of 1.5mm is reserved on the fluke (1) at the center, the thickness of the fluke (1) is 1.5mm, and fluke clamping notches (103) with the length of 2mm, the inclination angle of 45 degrees and the width of 0.2mm are reserved on the inner side of the fluke steel strips (101).
6. The multipoint displacement gauge for reducing the winding of the wire according to claim 1, characterized in that the pulley (4) is a polytetrafluoroethylene pulley with a grooved pulley track (401).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022481506.2U CN214121078U (en) | 2020-10-31 | 2020-10-31 | Multi-point displacement meter capable of reducing winding of measuring wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022481506.2U CN214121078U (en) | 2020-10-31 | 2020-10-31 | Multi-point displacement meter capable of reducing winding of measuring wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214121078U true CN214121078U (en) | 2021-09-03 |
Family
ID=77501474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022481506.2U Expired - Fee Related CN214121078U (en) | 2020-10-31 | 2020-10-31 | Multi-point displacement meter capable of reducing winding of measuring wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214121078U (en) |
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2020
- 2020-10-31 CN CN202022481506.2U patent/CN214121078U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210903 |