CN201236714Y - Adjustable mining single-body hydraulic supporter - Google Patents
Adjustable mining single-body hydraulic supporter Download PDFInfo
- Publication number
- CN201236714Y CN201236714Y CNU2008200780361U CN200820078036U CN201236714Y CN 201236714 Y CN201236714 Y CN 201236714Y CN U2008200780361 U CNU2008200780361 U CN U2008200780361U CN 200820078036 U CN200820078036 U CN 200820078036U CN 201236714 Y CN201236714 Y CN 201236714Y
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- CN
- China
- Prior art keywords
- locking device
- extension
- column casing
- oil cylinder
- sleeved
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a mine-used single hydraulic prop, particularly a height-adjustable mine-used single hydraulic prop, which comprises a coping, a return spring, a piston, a moveable column casing, a handle body, an oil cylinder, a three-use valve, an extension and a base, wherein, the handle body and a locking device are mounted at the upper end and the lower end of the oil cylinder respectively; the moveable column casing is sleeved on the handle body; the piston is connected with the lower end of the moveable column casing; the coping is mounted at the upper end of the moveable column casing; the return spring is arranged in the moveable column casing; the locking device is a double-layer vertical conical slopes internal and external sleeved slipping locking structure, the three-use valve traverses in the middle thereof; cams are arranged at the two ends of a central axis which is connected with the outer layer of the locking device; the extension is sleeved on the lower end of the inner layer of the locking device; and the base is arranged at the lower end of the extension. An extension can be replaced quickly when the extension is damaged, and the abandonment of entire braces is avoided, therefore, the steel material is saved; the locking device can clamp or loosen freely, and the locking device can clamp when a brace is in operation, thereby ensuring that the refracted angle of the brace is in a minimum condition, and anti-flexible; the locking device can loosen during replacement to be convenient for maintenance.
Description
Technical field:
The utility model relates to mine individual hydraulic prop, especially a kind of mine individual hydraulic prop of heightening.
Background technology:
Existing hydraulic prop, a kind of is oil cylinder solderless access node structure, though working resistance is big, the support zone of pillar is fragile, will cause whole pillar to scrap.Another kind is to connect shell type, ensure the dimensional accuracy of oil cylinder, extension and external trepanning by the machine means, difficulty of processing is big, cooperate easily loosening, after long-term replacing extension quality of fit descends, to form the adapter sleeve gap and increase, and form two bigger angle of refraction during the pillar axially loaded and make the pillar bending, and be very easy to fracture.
Summary of the invention:
The technical problems to be solved in the utility model is: provide a kind of reaching by the locking device that is provided with to have regulatory function, and be convenient to the mine individual hydraulic prop heightened that keeps in repair.
The technical scheme that solves its technical problem employing is: a kind of mine individual hydraulic prop of heightening, comprise: top cover, back-moving spring, piston, plunger tube, the handgrip body, oil cylinder, triple-use valve, extension, base, described oil cylinder is on it, the lower end is equipped with handgrip body and locking device respectively, plunger tube is sleeved on the handgrip body, its lower end is connected with piston, top cover is installed in its upper end, in the tube back-moving spring is set, described locking device is overcoat changing of the relative positions locking mechanism in the double-deck circular cone inclined-plane up and down, crossed triple-use valve in the middle of it, the outer lower end of locking device is connected with the central axis that two ends are provided with cam, its internal layer lower end is set with extension, and the extension lower end is provided with base.
Compared with prior art, the beneficial effects of the utility model are:
In this structure, standard knot can exchange with the extension of its different length, reaches required pillar height.In a single day extension damages, and it is fast to change extension speed, and avoids whole pillar to scrap, and saves steel.Locking device clamps, loosens freely, can clamp when pillar is in work, guarantees the angle of refraction minimum state of pillar, and is not flexible; When needing to change, locking device can loosen, and is convenient to maintenance.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Among the figure: top cover 1, shutoff 2, back-moving spring 3, plunger tube 4, handgrip body 5, oil cylinder 6, piston 7, triple-use valve 8, locking device 9, camshaft 10, extension 11, base 12.
The specific embodiment:
The utility model is described in further detail below in conjunction with drawings and Examples:
A kind of mine individual hydraulic prop of heightening, by top cover 1, shutoff 2, back-moving spring 3, plunger tube 4, handgrip body 5, oil cylinder 6, piston 7, triple-use valve 8, locking device 9, camshaft 10, extension 11, base 12 constitutes, described oil cylinder 6 is on it, the lower end is equipped with handgrip body 5 and locking device 9 respectively, plunger tube 4 is sleeved on the handgrip body 5, its lower end is connected with piston 7, top cover 1 is installed in its upper end, in the tube back-moving spring 3 is set, described locking device 9 is overcoat changing of the relative positions locking mechanism in the double-deck circular cone inclined-plane up and down, crossed triple-use valve 8 in the middle of it, locking device 9 outer lower ends are connected with the camshaft that two ends are provided with cam, its internal layer lower end is set with extension 11, and extension 11 lower ends are provided with base 12.
The utility model operating principle is summarized as follows:
Working media arrives in the plunger tube 4 by triple-use valve 8, along with working media constantly expands, makes plunger tube 4 rising gradually, reach the roof supporting purpose up to top cover 1, open by the feather valve in the triple-use valve 8, pillar inner chamber liquid flows out, under the effect of back-moving spring 3, plunger tube 4 restores.Locking device 9 can be with interior cover locking by camshaft 10, operate as normal after the external diameter formation one of the oil cylinder 6 of standard knot and extension 11.Pillar need be adjusted when height camshaft 10 reverse rotation locking devices 9 are unclamped automatically, change the extension 11 that highly is fit to into after, get final product at positive direction rotating cam axle 10.
Claims (1)
1, a kind of mine individual hydraulic prop of heightening, comprise: top cover, back-moving spring, piston, plunger tube, the handgrip body, oil cylinder, triple-use valve, extension, base, it is characterized in that described oil cylinder is on it, the lower end is equipped with handgrip body and locking device respectively, plunger tube is sleeved on the handgrip body, its lower end is connected with piston, top cover is installed in its upper end, in the tube back-moving spring is set, described locking device is overcoat changing of the relative positions locking mechanism in the double-deck circular cone inclined-plane up and down, crossed triple-use valve in the middle of it, the outer lower end of locking device is connected with the central axis that two ends are provided with cam, and its internal layer lower end is set with extension, and the extension lower end is provided with base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200780361U CN201236714Y (en) | 2008-07-26 | 2008-07-26 | Adjustable mining single-body hydraulic supporter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200780361U CN201236714Y (en) | 2008-07-26 | 2008-07-26 | Adjustable mining single-body hydraulic supporter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201236714Y true CN201236714Y (en) | 2009-05-13 |
Family
ID=40649453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200780361U Expired - Fee Related CN201236714Y (en) | 2008-07-26 | 2008-07-26 | Adjustable mining single-body hydraulic supporter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201236714Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111648799A (en) * | 2020-06-30 | 2020-09-11 | 陕西陕煤韩城矿业有限公司 | Two-piece single hydraulic prop |
-
2008
- 2008-07-26 CN CNU2008200780361U patent/CN201236714Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111648799A (en) * | 2020-06-30 | 2020-09-11 | 陕西陕煤韩城矿业有限公司 | Two-piece single hydraulic prop |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20110726 |