CN201517420U - External injection single hydraulic prop - Google Patents
External injection single hydraulic prop Download PDFInfo
- Publication number
- CN201517420U CN201517420U CN2009202267399U CN200920226739U CN201517420U CN 201517420 U CN201517420 U CN 201517420U CN 2009202267399 U CN2009202267399 U CN 2009202267399U CN 200920226739 U CN200920226739 U CN 200920226739U CN 201517420 U CN201517420 U CN 201517420U
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- oil cylinder
- piston
- movable column
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Abstract
The utility model is a coal mine support equipment, specifically to an external injection single hydraulic prop, including a hinged top cover (1), a three-purpose valve (2), a movable column (3), a handle body ( 4), an oil cylinder (6) and a base body (9), and so on, wherein the hinged top cover (1) is provided at the upper end of the movable column (3), the three-purpose valve (2) is provided on the movable column (3), the handle body (4) is provided at the external side of the upper end of the oil cylinder (6), the piston (8) is provided at the lower end of the movable column (3), a reset spring (7) is provided in the movable column (3), a column lifting valve (5) is also provided on the handle body (4), the column lifting valve (5) is communicated to an annular inner cavity formed between the oil cylinder (6) and the movable column (3), an one-way valve is provided on the piston (8), the annular inner cavity formed between the oil cylinder (6) and the movable column (3) is communicated to the bottom of the piston (8) through the one-way valve. The utility model firstly adopts a three-purpose valve (2) to inject liquid to ensure the rapid lifting of hydraulic props, and then uses the column lifting valve (5) to achieve an ideal support height, which has reasonable structure, easy operation, reduced labor intensity, capability of augmenting the stroke of the hydraulic prop, and the like features.
Description
Technical field
The utility model is a kind of support apparatus in coal mine, specifically a kind of outside injection type hydraulic pillar.
Background technology
Hydraulic prop is one of corollary equipment important in the fully-mechanized mining working, and hydraulic prop divides two kinds of internal-injection type and external poureds.Internal-injection type is to lean on the hydraulic oil of packing in the oil cylinder in inner loop work, and the internal-injection type hydraulic prop is owing to the internal construction complexity, and reasons such as manufacturing cost height are not widely used.Outside injection type hydraulic pillar makes cylinder alive carry out lifting by the pressure liquid of the default emulsion power pack output of work plane by triple-use valve, and outside injection type hydraulic pillar is simple in structure because of it, easy to usely is widely used flexibly.Present most outside injection type hydraulic pillar is in order to guarantee the location security of quick lifting of pillar and triple-use valve, triple-use valve is arranged on the top of pillar cylinder alive, when needed supporting height is higher, triple-use valve can't carry out normal fluid injection with the rising of pillar, pillar stroke limiting system does not reach needed supporting height, and will change hydraulic prop this moment, increase working strength of workers, reduced operating efficiency.
Summary of the invention
In order to overcome above-mentioned defective, it is a kind of rational in infrastructure, easy to operate that the utility model provides, and reduced labour intensity, can prolong the outside injection type hydraulic pillar of pillar stroke.
The technical solution adopted in the utility model is: a kind of outside injection type hydraulic pillar, comprise hinged top lid, triple-use valve, cylinder alive, the handgrip body, oil cylinder, back-moving spring and base body, hinged top lid is arranged on the upper end of cylinder alive, triple-use valve is arranged on the top of cylinder alive, the below of top cover, the bottom of cylinder alive is stretched in the oil cylinder, arranged outside has the handgrip body in the upper end of oil cylinder, piston is arranged on oil cylinder inside, the lower end of cylinder alive, base body is arranged on oil cylinder and the bottom of the cylinder of living, back-moving spring is connected between the upper end and base body of cylinder alive, described handgrip body is provided with carries column valve, carrying column valve is communicated with the oil cylinder and the annular cavity that forms between the cylinder of living, piston is provided with one way valve, and the oil cylinder and the annular cavity that forms between the cylinder of living are communicated with the bottom of piston by one way valve.
The utility model is provided with a valve body again on the handgrip body, promptly carry column valve, so when triple-use valve with the cylinder of living be elevated to can't fluid injection height the time, enable and carry column valve, hydraulic prop is carried out fluid injection, prolong the lifting stroke of hydraulic prop by carrying column valve, guarantee the quick lifting of hydraulic prop so earlier by the triple-use valve fluid injection, reach desirable supporting height by carrying column valve again, improved operating efficiency, reduced labour intensity.
Description of drawings
Fig. 1 is a schematic diagram of the present utility model
The specific embodiment
Now in conjunction with the accompanying drawings the utility model is further described, Fig. 1 is a structural representation of the present utility model, comprise hinged top lid 1, triple-use valve 2, cylinder 3 alive, handgrip body 4, carry column valve 5, oil cylinder 6 and back-moving spring 7 etc., hinged top lid 1 is arranged on the upper end of cylinder 3 alive, triple-use valve 2 is arranged on the top of cylinder 3 alive, the below of top cover, the bottom of cylinder 3 alive is stretched in the oil cylinder 6, arranged outside has handgrip body 4 in the upper end of oil cylinder 6, piston 8 is arranged on oil cylinder 6 inside, the lower end of cylinder 3 alive, base body 9 is arranged on oil cylinder 6 and the bottom of the cylinder 3 of living, and back-moving spring 7 is connected between the upper end and base body 9 of cylinder 3 alive.Be surrounded as a sealing and variable cavity by hinged top lid 1, live cylinder 3, handgrip body 4, oil cylinder 6, base and triple-use valve 2.Described handgrip body 4 is provided with carries column valve 5, carries column valve 5 and is communicated with the oil cylinder 6 and the annular cavity that forms between the cylinder 3 of living, and piston 8 is provided with one way valve, and the oil cylinder 6 and the annular cavity that forms between the cylinder 3 of living are communicated with piston 8 bottoms by one way valve.
During use, earlier by triple-use valve 2 fluid injections, to guarantee hoisting fast of hydraulic prop, when cylinder 3 the stretching out gradually of living, when triple-use valve 2 increases certain altitude, the workman will can't carry out normal fluid injection because the position of triple-use valve 2 is too high, and this moment, pillar did not also reach desirable height, and the column valve 5 of carrying of at this moment just enabling handgrip body 4 places carries out fluid injection.Be arranged on the handgrip body 4 because of carrying column valve 5, the height of handgrip body 4 is lower and fixed-site is constant.When carrying out fluid injection by carrying column valve 5, liquid can be through carrying the annular cavity that column valve 5 enters oil cylinder 6 and lives and form between the cylinder 3, the one way valve of flowing through again on the piston 8 arrives piston 8 bottoms then, thereby jack-up piston 8 makes cylinder 3 alive continue to raise, make hydraulic prop reach desirable height, guarantee the normal use of coal work.
The utlity model has rational in infrastructurely, easy to operate, reduced labour intensity, can increase the characteristics such as stroke of hydraulic prop.
Claims (1)
1. outside injection type hydraulic pillar, comprise hinged top lid (1), triple-use valve (2), cylinder (3) alive, handgrip body (4), oil cylinder (6), back-moving spring (7) and base body (9), hinged top lid (1) is arranged on the upper end of cylinder alive (3), triple-use valve (2) is arranged on the top of cylinder alive (3), the below of top cover, the bottom of cylinder alive (3) is stretched in the oil cylinder (6), upper end arranged outside at oil cylinder (6) has handgrip body (4), piston (8) is arranged on oil cylinder (6) inside, the lower end of cylinder alive (3), base body (9) is arranged on oil cylinder (6) and the bottom of the cylinder (3) of living, back-moving spring (7) is connected between the upper end and base body (9) of cylinder alive (3), it is characterized in that: described handgrip body (4) is provided with carries column valve (5), carrying column valve (5) is communicated with the oil cylinder (6) and the annular cavity that forms between the cylinder (3) of living, piston (8) is provided with one way valve, and the oil cylinder (6) and the annular cavity that forms between the cylinder (3) of living are communicated with by the bottom of one way valve with piston (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202267399U CN201517420U (en) | 2009-09-11 | 2009-09-11 | External injection single hydraulic prop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202267399U CN201517420U (en) | 2009-09-11 | 2009-09-11 | External injection single hydraulic prop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201517420U true CN201517420U (en) | 2010-06-30 |
Family
ID=42498142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202267399U Expired - Fee Related CN201517420U (en) | 2009-09-11 | 2009-09-11 | External injection single hydraulic prop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201517420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507942A (en) * | 2015-12-29 | 2016-04-20 | 大同煤矿集团有限责任公司 | Underground quick supporting equipment set |
-
2009
- 2009-09-11 CN CN2009202267399U patent/CN201517420U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507942A (en) * | 2015-12-29 | 2016-04-20 | 大同煤矿集团有限责任公司 | Underground quick supporting equipment set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG XINMEI MACHINERY EQUIPMENT CO., LTD. Free format text: FORMER NAME: SHANDONG NEW COAL-MACHINERY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 271219 Shandong city of Xintai province Xinwen Sun Village West Patentee after: Shandong Xinmei Machinery Equipment Co., Ltd. Address before: 271200 Shandong city of Xintai province Xinwen Sun Village West Patentee before: Shandong Xinmei Machinery Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100630 Termination date: 20150911 |
|
| EXPY | Termination of patent right or utility model |