CN204085849U - Water injection type back dynamic monitor - Google Patents
Water injection type back dynamic monitor Download PDFInfo
- Publication number
- CN204085849U CN204085849U CN201420202429.4U CN201420202429U CN204085849U CN 204085849 U CN204085849 U CN 204085849U CN 201420202429 U CN201420202429 U CN 201420202429U CN 204085849 U CN204085849 U CN 204085849U
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- water
- inner sleeve
- flowmeter
- emulsion
- walled hollow
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Abstract
The utility model water injection type back dynamic monitor comprises upper and lower two identical double-walled hollow tubulars and flowmeter, and flowmeter is connected with upper and lower two identical double-walled hollow tubulars by connecting thread.The double-walled hollow tubular be made up of inner sleeve and outer tube is by being installed in the steel ball of inner sleeve end and fixing along the U-shaped draw-in groove that tunnel roof and floor moves towards to offer, giant injects water (or emulsion) by one way entrapped water mouth, promote the rubber piston motion being installed in inner sleeve termination, monitor is stood upright in tunnel completely.When relative displacement appears in tunnel roof and floor, inner sleeve and outer tube occur mobile, can read roadway deformation amount from fluorescence scales chi.Water (or emulsion) injects flowmeter by water delivering orifice, can read the amount of crushing and pucking amount respectively by the reading of upper and lower dial plate.Owing to using water (or emulsion) as test media, safe and reliable, simple to operate, and can Reusability be realized, in back dynamic monitoring, there is general applicability.
Description
Technical field
The present invention relates to a kind of mine pressure monitoring instrument, especially a kind of tunnel roof-to-floor convergence and the monitoring instrument shifting near speed, for monitoring coal mine roadway roof and floor activity and relative displacement change within the operating period.
Background technology
Tunnel, as the chief component of mine production system, is responsible for the vital task of the normal production and transport of whole mine, ventilation and pedestrian.Roadway surrounding rock in whole life cycle is relatively stable to have great importance for the safe and efficient production of guarantee., must monitor the deformation of the deformation of roadway surrounding rock, particularly top board for this reason, thus take measures to avoid occurring the generation of absciss layer, roof fall accident in time.Mechanical type back dynamic instrument conventional at present shifts near mainly through roof and floor the pressure change occurred in process and compresses the spring be installed in the middle part of instrument, by the compression deformation of record spring and then the amount of shifting near relatively of monitoring roof and floor.Because the rigidity of spring is comparatively large, measuring accuracy is in actual use not easy to ensure.Meanwhile, this class mechanical type roof dynamic monitor requirement to installation environment is higher, and when instrument inclination or discontinuity, its test result all cannot reflect tunnel roof and floor deformation really.In addition, the data adopting this kind of roof dynamic monitor to obtain are the amounts of shifting near relatively between roof and floor, effectively can not embody the amount of crushing and the base plate amount of shifting near.For this reason, the present invention propose a kind of with water (or emulsion) be test media can Reusability, monitoring accuracy high and can record respectively and crush and the back dynamic monitor of the base plate amount of shifting near.
Summary of the invention
Technical matters: the object of this invention is to provide one with water (or emulsion) for test media, can Reusability and the high back dynamic monitoring instrument of measuring accuracy, thus effectively monitor back deflection and the base plate amount of shifting near, for the timely reinforce support in tunnel provides theoretical foundation.
Technical scheme: water injection type back dynamic monitor of the present invention, comprises measurement mechanism, water storage device and stationary installation.Described measurement mechanism is made up of two identical double-walled hollow tubulars and flowmeter.Double-walled hollow tubular comprises centre position and leaves one way entrapped water mouth and outside and paste the inner sleeve composition that the outer tube of fluorescence scales chi and end are provided with rubber piston, before installing, the rubber washer of inner sleeve is advanced into outer tube bottom, both are made to contact completely, the length of double-walled hollow tubular can reach minimum, thus saving space, be convenient for carrying.Flow is in respect of two identical semicircle dial plates, and the scale unit of display time on dial plate flows through the fluid flow of flowmeter, represents the displacement difference between outer tube and inner sleeve.The two ends up and down of flowmeter are connected with two identical double-walled hollow tubulars by connecting thread.Wherein, the reading of the semicircle dial plate be connected with top double-walled hollow tubular represents the deflection of top board, and the amount of shifting near of the semicircle dial plate record base plate be connected with below double-walled hollow tubular, both reading sums are the amount of shifting near of roof and floor.Flowmeter is provided with digital display type time counter, the operational use time of monitor can be recorded, then calculate roof and floor according to the reader of pointer on dial plate and shift near speed.Pressure-release valve is connected with flowmeter, when flow acquires a certain degree, when namely tunnel roof-to-floor convergence exceedes the distance of setting, pressure-release valve is opened automatically, ensure that the normal use of instrument, achieve the function that instrument can also be reused in other tunnels after the use of test tunnel terminates simultaneously.Water storage device comprises water storage cavity, one way entrapped water mouth, water delivering orifice, wherein water storage cavity is the locus between double-walled hollow tubular internal and external casing, by giant, water (or emulsion) is injected water storage cavity, the rubber piston being installed in inner sleeve end is subjected to displacement, drive internal and external casing stretches, monitoring instrument height is increased, stops water filling (or emulsion) when upper and lower two double-walled hollow tubulars contact tunnel roof and floor.Now open the variable valve being installed in flowmeter outer wall completely, when distortion appears in back, the water (or emulsion) in water storage cavity enters flowmeter along water delivering orifice, and in drive, the indicators turn of dial plate, is the amount of crushing.When distortion appears in roadway floor, the water (or emulsion) in water storage cavity enters flowmeter along water delivering orifice, drives the indicators turn of lower dial plate, the amount of shifting near of record base plate.Stationary installation comprises the spherical steel ball on the inner sleeve top being arranged on double-walled hollow tubular and moves towards the long 10cm that direction is opened in roof and floor along tunnel, the U-shaped draw-in groove of wide 2cm, steel ball is placed in U-shaped draw-in groove, water injection type back dynamic monitor can be made to move towards in tunnel to move in scope, thus avoid roof and floor and shift near the measuring error that in process, water injection type back dynamic monitor deflection is brought.
Beneficial effect: the present invention is applied to tunnel roof-to-floor convergence and shifts near in velocity survey, uses water (or emulsion) as test media, achieves the Reusability of monitoring instrument, reduce monitoring cost.The fluorescence scales chi that the outer tube of double-walled hollow tubular is pasted not only ensure that the effective reading in the dark surrounds of down-hole also improves the precision of test data simultaneously, in addition directly data be can also read by the dial plate up and down of the flowmeter be connected with upper and lower two identical double-walled hollow tubulars, the dual fail-safe of underworkings roof and floor dynamic monitoring and the simplification of data record achieved.
Water injection type back dynamic monitor principle is simple, delicate structure, and accuracy is high, mine working deformation monitoring particularly roof and floor shift near in monitoring and be with a wide range of applications.
Accompanying drawing explanation
Fig. 1 is the scheme of installation of water injection type back dynamic monitor of the present invention.
Fig. 2 is the structural representation of water injection type back dynamic monitor of the present invention.
Fig. 3 is water injection type back dynamic monitor flowmeter partial enlarged drawing of the present invention.
In figure: 1-back, 2-U shape draw-in groove, 3-roadway floor, 4-steel ball, 5-inner sleeve, 6-outer tube, 7-fluorescence scales chi, 8-rubber piston, 9-one way entrapped water mouth, 10-connecting thread, the upper dial plate of 11-, 12-pressure-release valve, dial plate under 13-, 14-water delivering orifice, 15-pointer, 16-time counter, 17-variable valve, 18-giant.
Embodiment
Below in conjunction with accompanying drawing, one embodiment of the present of invention are further described:
Shown in Fig. 1, water injection type back dynamic monitor is installed between back (1) and roadway floor (3), monitor is fixed on and moves towards in the U-shaped draw-in groove (2) arranged in direction along back (1) and roadway floor (3), water (or emulsion) is injected to monitor with giant (18), when height of instrument reaches monitoring head-room, stop water filling.
Shown in Fig. 2, water injection type back dynamic monitor of the present invention is by measurement mechanism, water storage device and stationary installation composition, wherein measurement mechanism is connected to form by connecting thread (10) by upper and lower two identical double-walled hollow tubulars and flowmeter, double-walled hollow tubular is made up of inner sleeve (5) and outer tube (6), outer tube (6) is marked with fluorescence scales chi (7), inner sleeve (5) end is equipped with steel ball (4), when injecting rubber piston (8) motion that water (or emulsion) promotes inner sleeve (5) end from the one way entrapped water mouth (9) at outer tube (6) middle part, monitor height stops water filling (or emulsion) when meeting head-room requirement to be monitored, space between inner sleeve (5) and outer tube (6) constitutes the water storage cavity of monitor, record the reading of the upper fluorescence scales chi (7) of now outer tube (6), open variable valve (17) completely.When back (1) occurs sinking, there is counter motion in the rubber piston (8) of inner sleeve (5) termination, water (or emulsion) in extruding water storage cavity, it is made to pass through to stay the water delivering orifice (14) being located at connecting thread (10) inner to enter dial plate (11), pointer (15) is driven to rotate, the deflection of record back (1).When roadway floor (3) occurs mobile, there is counter motion in the rubber piston (8) of inner sleeve (5) termination, water (or emulsion) in extruding water storage cavity, it is made to pass through to stay the water delivering orifice (14) being located at connecting thread inside to enter lower dial plate (13), pointer (15) is driven to rotate, the amount of shifting near of record roadway floor (3).Observe fluorescence scales chi (7) reading on now outer tube (6), with original records numeric ratio comparatively, the practical distortion amount of back (1) and roadway floor (3) can be obtained.When roadway deformation exceedes certain scope, the pressure-release valve (12) be connected with upper dial plate (11) and lower dial plate (13) is opened automatically, prevents monitor from occurring owing to exceeding range damaging.
Shown in Fig. 3, the flowmeter of water injection type back dynamic monitor is made up of upper dial plate (11), lower dial plate (13) and pointer (15), and flowmeter is connected with upper and lower two identical double-walled hollow tubulars by connecting thread (10).Circular outlets (14) is left at connecting thread (10) middle part, when there is distortion in back (1) and roadway floor (3), open variable valve (17), water (or emulsion) flows into dial plate (11) and lower dial plate (13) respectively by water delivering orifice (14), drive pointer (15) to rotate, time counter (16) can record the time that monitoring instrument is installed.
Claims (3)
1. water injection type back dynamic monitor, is made up of measurement mechanism, water storage device and stationary installation; It is characterized in that: the two ends up and down of flowmeter are connected with two identical double-walled hollow tubulars by connecting thread (10), double-walled hollow tubular is made up of outer tube (6) and inner sleeve (5), by giant (18), water (or emulsion) is injected water storage cavity.
2. water injection type back dynamic monitor according to claim 1, it is characterized in that: upper and lower two identical double-walled hollow tubulars are made up of inner sleeve (5) and outer tube (6), inner sleeve (5) one end is installed on rubber piston (8), and the other end is installed on steel ball (4).
3. water injection type back dynamic monitor according to claim 1; it is characterized in that: flowmeter is divided into dial plate (11) and lower dial plate (13); when the water (or emulsion) flowing through upper dial plate (11) and lower dial plate (13) reaches certain limit; pressure-release valve (12) is opened automatically, and protection instrument is not damaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420202429.4U CN204085849U (en) | 2014-04-23 | 2014-04-23 | Water injection type back dynamic monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420202429.4U CN204085849U (en) | 2014-04-23 | 2014-04-23 | Water injection type back dynamic monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204085849U true CN204085849U (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420202429.4U Expired - Fee Related CN204085849U (en) | 2014-04-23 | 2014-04-23 | Water injection type back dynamic monitor |
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| Country | Link |
|---|---|
| CN (1) | CN204085849U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767668A (en) * | 2017-02-10 | 2017-05-31 | 贵州大学 | The measurement apparatus and measuring method of a kind of back pressure-bearing and deflection |
| CN107063062A (en) * | 2017-04-12 | 2017-08-18 | 霍州煤电集团有限责任公司 | A kind of mining tunnel deformation monitoring equipment |
| CN107917670A (en) * | 2017-12-21 | 2018-04-17 | 黑龙江科技大学 | Slidingtype roof to floor convergence measuring device and roof to floor convergence measuring method |
| CN108223326A (en) * | 2017-11-30 | 2018-06-29 | 内乡县畅兴设备有限公司 | A kind of automatic ratio pump |
| CN112833850A (en) * | 2021-01-20 | 2021-05-25 | 闫亚鹏 | Coal mine tunnel rock wall deformation monitoring device |
-
2014
- 2014-04-23 CN CN201420202429.4U patent/CN204085849U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767668A (en) * | 2017-02-10 | 2017-05-31 | 贵州大学 | The measurement apparatus and measuring method of a kind of back pressure-bearing and deflection |
| CN106767668B (en) * | 2017-02-10 | 2023-04-28 | 贵州大学 | Device and method for measuring pressure bearing and deformation of roadway roof |
| CN107063062A (en) * | 2017-04-12 | 2017-08-18 | 霍州煤电集团有限责任公司 | A kind of mining tunnel deformation monitoring equipment |
| CN108223326A (en) * | 2017-11-30 | 2018-06-29 | 内乡县畅兴设备有限公司 | A kind of automatic ratio pump |
| CN108223326B (en) * | 2017-11-30 | 2021-12-28 | 内乡县畅兴设备有限公司 | Automatic proportioning pump |
| CN107917670A (en) * | 2017-12-21 | 2018-04-17 | 黑龙江科技大学 | Slidingtype roof to floor convergence measuring device and roof to floor convergence measuring method |
| CN107917670B (en) * | 2017-12-21 | 2023-10-03 | 黑龙江科技大学 | Sliding type top and bottom plate approaching amount measuring device and top and bottom plate approaching amount measuring method |
| CN112833850A (en) * | 2021-01-20 | 2021-05-25 | 闫亚鹏 | Coal mine tunnel rock wall deformation monitoring device |
| CN112833850B (en) * | 2021-01-20 | 2022-05-31 | 闫亚鹏 | Coal mine tunnel rock wall deformation monitoring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20150423 |
|
| EXPY | Termination of patent right or utility model |