CN212300880U - Indoor model test displacement meter fixing device with rotary hinge - Google Patents
Indoor model test displacement meter fixing device with rotary hinge Download PDFInfo
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- CN212300880U CN212300880U CN202021293603.2U CN202021293603U CN212300880U CN 212300880 U CN212300880 U CN 212300880U CN 202021293603 U CN202021293603 U CN 202021293603U CN 212300880 U CN212300880 U CN 212300880U
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 40
- 238000012360 testing method Methods 0.000 title claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 32
- 238000004806 packaging method and process Methods 0.000 claims abstract description 27
- 239000000725 suspension Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 14
- 230000005389 magnetism Effects 0.000 description 9
- 238000004088 simulation Methods 0.000 description 6
- 238000009412 basement excavation Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The utility model relates to an indoor model test displacement meter fixing device with a rotary hinge, which comprises an outer side magnetic attraction piece, an inner side magnetic attraction piece and a lifting hook; the outer magnetic attraction piece mainly comprises a magnet module, a packaging substrate and a lengthening device, and the inner magnetic attraction piece mainly comprises a magnet module, a packaging substrate, a lengthening device, a hook and a hook seat; the packaging substrates of the inner and outer magnetic attraction pieces are the same in shape and size, the magnet modules are arranged inside the packaging substrates of the inner and outer magnetic attraction pieces, the inner and outer magnetic attraction pieces can attract each other to form a whole body for fixing the displacement meter, and the lengthening devices are arranged at two ends of the packaging substrates of the inner and outer magnetic attraction pieces; the lengthening device mainly comprises a lengthening column, a rotary hinge, a lengthening column clamping groove, a lifting hook groove and a lengthening column jack. The utility model has the advantages that: because the magnetic attraction piece is of a detachable structure, when one magnetic attraction piece is damaged and can not be used again in the assembling process, the magnetic attraction piece can be replaced by a spare magnetic attraction piece.
Description
Technical Field
The utility model belongs to the technical field of tunnel engineering among geotechnical and underground works, in particular to take indoor model test displacement meter fixing device who changes hinge.
Background
With the development of urban infrastructure construction and the further development of urban underground space, rail transit has become an important component of urban underground engineering and shows a trend of becoming denser and denser. Other engineering construction such as foundation pit excavation, pipeline crossing and the like is inevitably carried out at the adjacent parts of the engineering, the engineering construction inevitably has adverse effects on adjacent tunnels or pipelines, the deformation of the tunnels is caused, and engineering accidents can be seriously caused, so that a large amount of loss is caused. Therefore, a lot of researches on the aspects of tunnel structure safety and the like are carried out in the engineering community. Among them, the use of physical model laboratories based on similar theories is an important means for the study and analysis of tunnel safety issues.
In urban areas where high-rise buildings are erected, the phenomena of excavation of foundation pits and pipeline crossing construction are common, and subway pipelines with high requirements for structural safety are influenced by excavation of adjacent foundation pits and pipeline crossing construction, so that the tunnels are damaged by displacement, loose segments and the like. At present, a large number of students also utilize an indoor reduced-size model to simulate the influence of foundation pit excavation and pipeline crossing on the existing shield tunnel structure in a test room. The PVC pipeline simulation shield tunnel is mainly used, but the PVC pipeline simulation shield tunnel has a problem, the situation that the displacement meter is difficult to install when the convergence deformation of the measuring pipeline occurs, a plurality of scholars adopt the method of directly punching and welding the pipeline to fixedly install the displacement meter, but the pipeline state can be changed, the phenomenon of uneven stress of the pipeline is caused, the accuracy of an experimental result is influenced, the pipeline cannot be repeatedly utilized, the resource waste is caused, and the waste pipeline can cause environmental pollution.
In conclusion, the existing method for fixedly mounting the displacement meter in the model tunnel has many defects, namely, the welding and punching affect the accuracy of the test result, the pipeline cannot be recycled, the waste pipeline pollutes the environment and the like. In view of the above problems, there is a need for an improved technique to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming not enough among the prior art, providing an indoor model test displacement meter fixing device who takes commentaries on classics hinge.
The fixing device of the indoor model test displacement meter with the rotary hinge comprises an outer side magnetic attraction sheet, an inner side magnetic attraction sheet and a lifting hook; the outer magnetic attraction piece mainly comprises a magnet module, a packaging substrate and a lengthening device, and the inner magnetic attraction piece mainly comprises a magnet module, a packaging substrate, a lengthening device, a hook and a hook seat; the packaging substrates of the inner and outer magnetic attraction pieces are the same in shape and size, the magnet modules are arranged inside the packaging substrates of the inner and outer magnetic attraction pieces, the inner and outer magnetic attraction pieces can attract each other to form a whole body for fixing the displacement meter, and the lengthening devices are arranged at two ends of the packaging substrates of the inner and outer magnetic attraction pieces; the lengthening device mainly comprises a lengthening column, a rotary hinge, a lengthening column clamping groove, a lifting hook groove and a lengthening column jack, wherein the two ends of the packaging substrate are respectively provided with the lengthening column clamping groove and the lengthening column jack, the inner end of the lengthening column clamping groove is provided with the lifting hook groove, the outer end of the lengthening column clamping groove is movably connected with the lengthening column through the rotary hinge, the lengthening column is matched with the lengthening column clamping groove, and the lengthening column is matched with the lengthening column jack; the lifting hook consists of a lifting hook ring and a hook rod, and the lifting hook is matched with the lifting hook groove; a hook seat is fixed on the upper part of the packaging substrate of the inner side magnetic attraction sheet, and a hook is connected on the hook seat; the outer magnetic attraction piece and the inner magnetic attraction piece are respectively arranged on the outer side and the inner side of the wall of the model tunnel, the outer magnetic attraction piece and the inner magnetic attraction piece are fixed on the wall of the model tunnel through magnetic attraction, and a hook of the inner magnetic attraction piece is connected with a displacement meter through a suspension wire.
Preferably, the method comprises the following steps: every magnetism inhales the piece and has two to connect long post, two to connect long post draw-in grooves, two to connect long post jack, when a plurality of magnetism inhale the piece and connect, can alternate through both ends and connect long, inhales between the piece through the extension post of a magnetism promptly and inserts the extension post jack of adjacent another magnetism and inhale the piece and connect.
Preferably, the method comprises the following steps: the packaging substrate is made of rigid materials, and the magnet module and the hook seat are packaged in the packaging substrate. The hook and the hook seat are made of rigid materials.
Preferably, the method comprises the following steps: the extension column and the extension column jack have enough strength and cannot be damaged during extension.
Preferably, the method comprises the following steps: the magnetic attraction piece can be used singly or can be lengthened, and when the magnetic attraction piece is used singly, the lengthening column can be placed in the clamping groove of the lengthening column through rotating and hinging for 180 degrees; when the long-column magnetic connector needs to be connected, the lifting hook is inserted into the lifting hook groove, the long-column connecting column is hooked, and the long-column connecting column can be lifted out of the long-column connecting groove and is used for being connected with other magnetic suction pieces.
The utility model has the advantages that:
1. the fixing device is simple and convenient to operate
Compare through punching on the simulation section of jurisdiction, weld the traditional mode that other devices come fixed displacement meter, adsorb on the section of jurisdiction wall by a set of magnetism piece, the installation is simple, and labour saving and time saving can adjust the length of the suspension wire of connecting the displacement meter according to the pipe diameter size, all is suitable for any pipe diameter. When the experiment is finished, the outer magnetic attraction piece can be directly removed, and the inner magnetic attraction piece can automatically fall off.
2. Modularized design can realize quick replacement of magnetic attraction pieces
Because the magnetic suction piece is of a detachable structure, when one magnetic suction piece is damaged and can not be used again in the assembling process, the magnetic suction piece can be replaced by a spare magnetic suction piece, and the situation that the displacement meter connected to the magnetic suction piece can not be used due to the fact that the block is damaged is avoided.
3. Duct piece nondestructive testing in testing process
Compared with the traditional mode of punching and welding on the duct piece, the displacement meter fixing device of the method adopts a pair of inner and outer magnetic attraction pieces to be adsorbed on the duct piece wall, so that the duct piece wall cannot be damaged, and the inaccurate test result caused by the uneven stress of weak links of the duct piece cannot be caused.
4. The magnetic attraction pieces are flexible in extension and number arrangement
Because the magnetic attraction piece is provided with the long column connecting clamping groove and the long column connecting jack, the displacement meter can be fixed by adopting a single magnetic attraction piece or the long magnetic attraction piece according to the test requirement, and the position can be flexibly arranged.
5. The pipeline can be recycled
Because the section of jurisdiction does not receive the damage in test process, after the experiment, the section of jurisdiction can cyclic utilization, has reduced the wasting of resources and the pollution to the environment.
Drawings
FIG. 1 is a top view of an extended state of an outer magnetic attraction piece;
FIG. 2 is a top view of the outer magnetic attraction piece in a single use state;
FIG. 3 is a front view of an outboard magnetic attraction plate;
FIG. 4 is a left side view of the outer magnetic attraction piece;
FIG. 5 is a top view of the inner magnetic attraction piece in an extended state;
FIG. 6 is a top view of the inner magnetic attraction piece in a single use state;
FIG. 7 is a front view of an inner magnetic attraction plate;
FIG. 8 is a left side view of the inner magnetic attraction piece;
FIG. 9 is a schematic view of a hook;
FIG. 10 is a schematic view of the connection of the outer magnetic attraction pieces;
FIG. 11 is a schematic view of the connection of the inner magnetic attraction pieces;
FIG. 12 is a schematic view of the arrangement of the magnetic attraction pieces at the simulated tunnel.
Description of reference numerals: the device comprises a long connecting column 1, a rotary hinge 2, a long connecting column clamping groove 3, a packaging substrate 4, a hook lifting groove 5, a long connecting column jack 6, a magnet module 7, a hook 8, a hook seat 9, a hook lifting ring 10, a hook rod 11, a simulated tunnel wall 12, a displacement meter 13 and a suspension wire 14.
Detailed Description
The present invention will be further described with reference to the following examples. The following description of the embodiments is merely provided to aid in understanding the invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Example one
The embodiment of the application provides a take indoor model test displacement meter fixing device who changes hinge, including outside magnetism inhale piece, inboard magnetism inhale piece, displacement meter 13, suspension wire 14. The sizes of the inner and outer magnetic attraction pieces are not limited, and the magnetic attraction pieces with corresponding sizes can be manufactured according to the size of a model in specific use. The magnetic attraction pieces can be connected to form a lengthened magnetic attraction piece so as to meet the requirement of the actual use process, namely, the number of the displacement meters can be increased according to the requirement.
As shown in fig. 1, 2, 5 and 6, the outer magnetic attraction piece mainly comprises a magnet module 7, a package substrate 4 and a lengthening device, and the inner magnetic attraction piece mainly comprises a magnet module 7, a package substrate 4, a lengthening device, a hook 8 and a hook seat 9, wherein the outer magnetic attraction piece does not comprise the hook 8 and the hook seat 9. The package substrate 4 is made of a rigid material, and the size of the package substrate can be adjusted according to actual use conditions. The magnet module 7 can be round or square as required, and the size can meet the packaging requirement and the magnetic size.
As shown in fig. 3 and 4, the diameter of the extension column 1 is smaller than the thickness of the packaging substrate 4, the size and thickness of the magnet module 7 are smaller than the size of the packaging substrate 4, and the magnetic strength of the magnet module 7 is enough to enable the inner and outer magnetic attraction pieces to attract and resist the pulling force of the displacement meter.
As shown in fig. 5, 6, 7 and 8, the hook 8 and the hook seat 9 are packaged on the package substrate 4, the size of the hook 8 can be adjusted and can be closed or not, the hook seat 9 and the package substrate 4 are firmly connected, and both the hook 8 and the hook seat 9 are made of non-elastic materials (rigid materials). The hook base 9 is fixed to the package substrate 4 by a packaging or soldering method.
As shown in fig. 9, the hook is composed of a hook ring 10 and a hook rod 11, and its size and shape are not limited as long as the extension column 1 can be taken out of the extension column clamping groove 3.
As shown in FIGS. 10 and 11, the inner and outer magnetic attraction pieces can be lengthened according to actual conditions and requirements to meet the requirements of the arrangement number and the point position of the displacement meter. The outer magnetic attraction piece is not provided with a hook and has the function of attracting the inner magnetic attraction piece to fix the displacement meter. The inner magnetic attraction piece is provided with a hook, and the displacement meter can be fixed on the hook.
As shown in fig. 12, the two ends of the displacement meter 13 are selectively connected or not connected with the suspension wires 14 according to the inner diameter of the pipeline (when the suspension wires are not connected, the displacement meter is directly connected to the hooks), and the displacement meter is suspended and fixed in the simulation pipeline (tunnel).
Example two
The second embodiment of the application provides a test method of an indoor model test displacement meter fixing device with a rotary hinge, which comprises the following steps:
1) size adjustment of the displacement meter: before the test is started, the length of the suspension wire 14 is determined according to the inner diameter of the tunnel, the size of the displacement meter 13 and the measuring range, and the lengths of the suspension wires 14 at the two ends of the displacement meter 13 are equal.
2) Mounting the magnetic attraction sheet: the outer side magnetic attraction pieces are placed on the outer side of the simulation tunnel and are temporarily fixed, then the inner side magnetic attraction pieces are adsorbed on the inner side of the simulation tunnel, the inner side magnetic attraction pieces and the outer side magnetic attraction pieces are adsorbed on the segment wall through magnetic force mutual attraction, and the pair of magnetic attraction pieces are adjusted at the needed positions. And fixing the other pair of magnetic attraction pieces on the other side of the diameter of the tunnel to form a group of measuring points. The piece is inhaled to magnetism this moment is in single user state, will connect long post 1 to rotate 180 through commentaries on classics hinge 2 and arrange in connecing long post draw-in groove 3 to realize that single magnetism inhales piece and carry out work and can not damage in the use and connect long post.
3) Fixing the displacement meter: a suspension wire 14 at one end of a displacement meter 13 is hung on a hook 8, the displacement meter is stretched and fixed on the other opposite hook 8 at the other end, and the displacement meter 13 is stretched and fixed.
4) Lengthening the magnetic attraction sheet: when the long-distance magnetic attraction piece needs to be lengthened, the lifting hook is inserted into the lifting hook groove 5 to hook the long-distance connection column 1, and the long-distance connection column 1 is lifted out of the long-distance connection column clamping groove 3 to be lengthened with other magnetic attraction pieces. The outer side magnetic suction piece is temporarily fixed on the outer side of the model duct piece by connecting the long column 1 and the long column jack 6, the inner side magnetic suction piece is connected with the long column 1 and the long column jack 6, and the magnetic force of the outer side magnetic suction piece is absorbed on the inner side of the duct piece to form the elongated magnetic suction piece. This allows more displacement gauges 13 to be installed in the tube, after which subsequent wire connections can be made and tested.
Claims (3)
1. The utility model provides a take indoor model test displacement meter fixing device who changes hinge which characterized in that: comprises an outer magnetic attraction sheet, an inner magnetic attraction sheet and a lifting hook; the outer magnetic attraction sheet mainly comprises a magnet module (7), a packaging substrate (4) and a lengthening device, and the inner magnetic attraction sheet mainly comprises the magnet module (7), the packaging substrate (4), the lengthening device, a hook (8) and a hook seat (9); the packaging substrates (4) of the inner and outer magnetic attraction pieces are the same in shape and size, the magnet modules (7) are arranged inside the packaging substrates (4) of the inner and outer magnetic attraction pieces, and the lengthening devices are arranged at two ends of the packaging substrates (4) of the inner and outer magnetic attraction pieces; the lengthening device mainly comprises a lengthening column (1), a rotary hinge (2), a lengthening column clamping groove (3), a lifting hook groove (5) and a lengthening column jack (6), wherein the two ends of a packaging substrate (4) are respectively provided with the lengthening column clamping groove (3) and the lengthening column jack (6), the inner end of the lengthening column clamping groove (3) is provided with the lifting hook groove (5), the outer end of the lengthening column clamping groove (3) is movably connected with the lengthening column (1) through the rotary hinge (2), the lengthening column (1) is matched with the lengthening column clamping groove (3), and the lengthening column (1) is matched with the lengthening column jack (6); the lifting hook consists of a lifting hook ring (10) and a hook rod (11), and the lifting hook is matched with the lifting hook groove (5); a hook seat (9) is fixed on the upper part of the packaging substrate (4) of the inner side magnetic attraction sheet, and a hook (8) is connected on the hook seat (9); the outer magnetic attraction piece and the inner magnetic attraction piece are respectively arranged on the outer side and the inner side of the model tunnel wall (12), the outer magnetic attraction piece and the inner magnetic attraction piece are fixed on the model tunnel wall (12) through magnetic attraction, and a hook (8) of the inner magnetic attraction piece is connected with a displacement meter (13) through a suspension wire (14).
2. The apparatus of claim 1, wherein the apparatus further comprises: two adjacent magnetic attraction pieces are connected by inserting the long connecting column (1) of one magnetic attraction piece into the long connecting column jack (6) of the other adjacent magnetic attraction piece.
3. The apparatus of claim 1, wherein the apparatus further comprises: the packaging substrate (4), the hook (8) and the hook seat (9) are all made of rigid materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021293603.2U CN212300880U (en) | 2020-07-06 | 2020-07-06 | Indoor model test displacement meter fixing device with rotary hinge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021293603.2U CN212300880U (en) | 2020-07-06 | 2020-07-06 | Indoor model test displacement meter fixing device with rotary hinge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212300880U true CN212300880U (en) | 2021-01-05 |
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ID=73936314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021293603.2U Expired - Fee Related CN212300880U (en) | 2020-07-06 | 2020-07-06 | Indoor model test displacement meter fixing device with rotary hinge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212300880U (en) |
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2020
- 2020-07-06 CN CN202021293603.2U patent/CN212300880U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210105 Termination date: 20210706 |