CN204532387U - Hydraulic prop setting load, superpressure LED alarming device - Google Patents
Hydraulic prop setting load, superpressure LED alarming device Download PDFInfo
- Publication number
- CN204532387U CN204532387U CN201520233883.0U CN201520233883U CN204532387U CN 204532387 U CN204532387 U CN 204532387U CN 201520233883 U CN201520233883 U CN 201520233883U CN 204532387 U CN204532387 U CN 204532387U
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- explosion
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Abstract
The utility model discloses a kind of hydraulic prop setting load, superpressure LED alarming device, solve existing hydraulic prop pressure reflection problem not in time, it is characterized in that plumb joint is threaded connector successively, explosion-proof shell, Explosion-proof cap; The packed-piston seat being provided with three piston rods is installed in connector; Also be provided with spring base, circuit board in explosion-proof shell, spring base is fixed on connector by adjustment screw, and circuit board adjustment spring and adjustment screw mount elastically; Spring base is provided with the spring lever that three covers have die springs, and spring lever and piston rod are corresponding to same axis respectively; It is corresponding to spring lever same axis respectively that circuit board is provided with switch, LED I, LED II, K1, K2, K3 of comprising K1, K2, K3; Clear glass, observation port is provided with in Explosion-proof cap.The utility model simple installation, under-voltage, superpressure pressure value can be set up on request, and no matter any individual prop is in work plane uses during appearance exception, and warning lamp can light, and prompting processes in time; Greatly reduce and injure by a crashing object, collapse the casualty accidents such as top; Improve individual prop application life, enhance productivity.
Description
Technical field
The utility model relates to a kind of safety alarm device, relates to a kind of safety alarm device of hydraulic prop or rather.
Background technology
External poured pillar is a kind of fast constant-resistance type individual prop of outside feed flow, can support the use with metal roof bar, also can do separately a post to use, for colliery common mechanical work plane supporting roof, or for comprehensive mechanization face end supporting and other temporary supporting etc.
Hydraulic prop structure is made up of critical pieces such as cylinder of living, oil cylinder, triple-use valve, top cover, base, back-moving spring, handle body pistons.Because high pressure sealing face is in oil cylinder, when the high pressure sealing face of pillar leaks, operator cannot find, pillar usually, therefore under automatic pouring, causes the top casualty accident that collapses.Thereby produce pillar top board and detect work post, both taken a lot of work also time-consuming.If triple-use valve lost efficacy, after weighting strength exceedes its rated operating pressure, safety valve wherein can not open off-load, caused cylinder piston cavity pressure to exceed, its stress and cause block distortion and fried cylinder.If setting load is low, the early stage support capacity of pillar to top board weakens greatly, very easily causes the too early absciss layer of roof strata, brings out roof collapse.Setting load is low is the main cause of hydraulic prop work plane generation roof accident.
Hydraulic prop is in work plane uses, and many-sided reasons such as owing to producing internal and outernal leakage, work plane condition is poor, operation, make partial struts lower than regulation setting load setting or without pressure, automatic pouring post, cause the top casualty accident that collapses.When the safety valve on pillar lost efficacy, cylinder piston pressure exceeded, and can make individual prop press-bending, block distortion, burst, affect monomer application life and safety in production.
Summary of the invention
The purpose of this utility model is that overcoming the deficiencies in the prior art provides a kind of hydraulic prop setting load, superpressure LED alarming device, improves hydraulic prop application life and security performance.
The utility model comprises plumb joint, punches, by plumb joint full weld on individual prop, it is characterized in that at hydraulic prop oil cylinder or live on post: described plumb joint is threaded connector, and connector is threaded explosion-proof shell, and explosion-proof shell is threaded Explosion-proof cap; In described connector, packed-piston seat is installed; Piston seat is provided with three piston rods and fixes with gland nut respectively; Also be provided with spring base, circuit board in described explosion-proof shell, described spring base is fixed on connector by adjustment screw, and described circuit board adjustment spring and adjustment screw mount elastically; Described spring base has three holes, three covers have in the spring lever patchhole of die springs, and spring lever and piston rod are corresponding to same axis respectively; Described circuit board is provided with the switch, LED I, LED II, the battery that comprise K1, K2, K3, adjustment K switch 1 contact spring bar, K switch 2, K3 and spring lever preset clearance, and K1, K2, K3 are corresponding to spring lever same axis respectively; Clear glass, observation port is provided with in described Explosion-proof cap.
Operating principle: when individual prop fluid injection, liquid passes through connector, under the effect of the pressure, three piston rods promote three spring levers makes spring-compressed, and general setting is when reaching first bulging power 90%, and the K switch 1 of installing on circuit boards is opened, powered battery, LED warning lamp I is bright; When exceeding first bulging power, K switch 2 is opened, and LED I is closed; When pillar exceeds rated operating pressure, K switch 3 is opened, and LED warning lamp II is bright.In this device busy face use procedure, warning LED I bright explanation support setting load is low; Warning LED II bright explanation support plunger shaft superpressure, plays warning function, guarantees the safety in production of work plane.
As shown from the above technical solution, the utility model does not change the original performance of individual prop, simple installation, and under-voltage, superpressure pressure value can be set up on request.No matter any individual prop is in work plane uses during appearance exception, and warning lamp can light, and prompting processes in time; Greatly reduce and injure by a crashing object, collapse the casualty accidents such as top; Improve individual prop application life, reduce the pressure measurement of per tour individual prop, save manpower, enhance productivity, guarantee the safety of mining face under mine.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the left view of the utility model spring base.
Fig. 3 is the left view of the utility model circuit board.
In figure, 1. plumb joint, 2. connector, 3. piston seat, 4. piston rod, 5. gland nut, 6. die springs, 7. spring base, 8. spring lever, 9. explosion-proof shell, 10. adjust screw, 11. switches, 12. adjustment springs, 13. circuit boards, 14 batteries, 15.LED lamp I, 16.LED lamp II, 17. clear glasses, 18. Explosion-proof caps, 19 observation ports.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.
The utility model comprises plumb joint 1 etc., and hydraulic prop oil cylinder or post of living punch, by plumb joint 1 full weld on individual prop.
Described plumb joint 1 is threaded connector 2, and connector 2 is threaded explosion-proof shell 9, and explosion-proof shell 9 is threaded Explosion-proof cap 18.In described connector 2, packed-piston seat 3 is installed; Piston seat 3 is provided with three piston rods 4
,three sealing rings are fixed with gland nut 5 respectively; Also be provided with spring base 7, circuit board 13 in described explosion-proof shell 9, described spring base 7 is fixed on connector 2 by adjustment screw 10, and described circuit board 13 adjustment spring 12 and adjustment screw 10 are arranged on spring base 7.
Shown in composition graphs 2, described spring base 7 has three holes, three covers have in spring lever 8 patchhole of die springs 6, and spring lever 8 and piston rod 4 are corresponding to same axis respectively.Described spring lever 8 one covers have extremely heavy square-section die springs, two covers have heavy dies spring.
Shown in composition graphs 3, described circuit board 13 is provided with the switch 11, battery 14, LED I 15, the LED II 16 that comprise K1, K2, K3, the K1 contact sleeve of adjustment switch 11 has the spring lever 8 of extremely heavy square-section die springs, K2, K3 of switch 11 and cover have spring lever 8 preset clearance of heavy dies spring, and K1, K2, K3 are corresponding to spring lever 8 same axis respectively.
Clear glass 17, observation port 19 is provided with, in order to observe the light on and off of LED I, LED II in described Explosion-proof cap 18.
The utility model is applicable to the hydraulic prop of all size.Under-voltage, superpressure pressure value can be set up on request.Plumb joint is aimed at the foraminate single hydraulic prop of band or hydraulic cylinder, then welds one week, then all the other connectors are tightened on plumb joint.
Hydraulic prop is when mining face under mine uses, and fluid injection gun is to triple-use valve fluid injection, and pillar rises, and observes after LED I lights and extinguishes again, namely reach setting load; When hydraulic prop alters liquid, seepage, its hydraulic cylinder pressure drop is to during lower than setting load, and LED I lamp is bright, after-teeming liquid or replacing individual prop.When LED II lights, hydraulic cylinder pressure has exceeded individual prop rated operating pressure, and the safety valve of triple-use valve lost efficacy, and changed triple-use valve.No longer will power when this device normally works inactive, can battery life be improved, prevent the security incident of individual prop damage and mining face under mine simultaneously.
Claims (1)
1. a hydraulic prop setting load, superpressure LED alarming device, comprise plumb joint, hydraulic prop oil cylinder or post of living punch, by plumb joint full weld on individual prop, it is characterized in that: described plumb joint (1) is threaded connector (2), connector (2) is threaded explosion-proof shell (9), and explosion-proof shell (9) is threaded Explosion-proof cap (18); In described connector (2), packed-piston seat (3) is installed; Piston seat (3) is provided with three piston rods (4) and uses gland nut (5) to fix respectively;
describedspring base (7), circuit board (13) is also provided with in explosion-proof shell (9), described spring base (7) is fixed on connector (2) by adjustment screw (10), and described circuit board (13) adjustment spring (12) and adjustment screw (10) are arranged on spring base (7); Described spring base (7) has three holes,
three covers have die springs(6)
'sin spring lever (8) patchhole, spring lever (8) and piston rod (4) are corresponding to same axis respectively; Described circuit board (13) is provided with the switch (11), battery (14), LED I (15), the LED II (16) that comprise K1, K2, K3, the K1 contact spring bar (8) of adjustment switch (11), K2, K3 of switch (11) and spring lever (8) preset clearance, K1, K2, K3 are corresponding to spring lever (8) same axis respectively; Described is explosion-proof
lid(18)
inside be provided with clear glass(17)
, observation port(19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520233883.0U CN204532387U (en) | 2015-04-19 | 2015-04-19 | Hydraulic prop setting load, superpressure LED alarming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520233883.0U CN204532387U (en) | 2015-04-19 | 2015-04-19 | Hydraulic prop setting load, superpressure LED alarming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204532387U true CN204532387U (en) | 2015-08-05 |
Family
ID=53746409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520233883.0U Expired - Fee Related CN204532387U (en) | 2015-04-19 | 2015-04-19 | Hydraulic prop setting load, superpressure LED alarming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204532387U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106624760A (en) * | 2016-12-31 | 2017-05-10 | 马鞍山市三江机械有限公司 | Overtravel alarming and resetting stretcher and stretching method thereof |
| CN106737347A (en) * | 2016-12-31 | 2017-05-31 | 马鞍山市三江机械有限公司 | A kind of overtravel alarm stretcher and its drawing process |
| CN106736481A (en) * | 2016-12-31 | 2017-05-31 | 马鞍山市三江机械有限公司 | A kind of stretcher and its stretching and installation method |
| CN106736480A (en) * | 2016-12-31 | 2017-05-31 | 马鞍山市三江机械有限公司 | A kind of hydraulic elongator and its drawing process |
| CN107356617A (en) * | 2017-08-24 | 2017-11-17 | 丹东华日理学电气股份有限公司 | Digital imagery plate proximity-warning device |
-
2015
- 2015-04-19 CN CN201520233883.0U patent/CN204532387U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106624760A (en) * | 2016-12-31 | 2017-05-10 | 马鞍山市三江机械有限公司 | Overtravel alarming and resetting stretcher and stretching method thereof |
| CN106737347A (en) * | 2016-12-31 | 2017-05-31 | 马鞍山市三江机械有限公司 | A kind of overtravel alarm stretcher and its drawing process |
| CN106736481A (en) * | 2016-12-31 | 2017-05-31 | 马鞍山市三江机械有限公司 | A kind of stretcher and its stretching and installation method |
| CN106736480A (en) * | 2016-12-31 | 2017-05-31 | 马鞍山市三江机械有限公司 | A kind of hydraulic elongator and its drawing process |
| CN107356617A (en) * | 2017-08-24 | 2017-11-17 | 丹东华日理学电气股份有限公司 | Digital imagery plate proximity-warning 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: 20150805 Termination date: 20170419 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |