CN201218103Y - Low-position liquid injection type suspending single-body hydraulic supporter - Google Patents
Low-position liquid injection type suspending single-body hydraulic supporter Download PDFInfo
- Publication number
- CN201218103Y CN201218103Y CNU2008200397891U CN200820039789U CN201218103Y CN 201218103 Y CN201218103 Y CN 201218103Y CN U2008200397891 U CNU2008200397891 U CN U2008200397891U CN 200820039789 U CN200820039789 U CN 200820039789U CN 201218103 Y CN201218103 Y CN 201218103Y
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- Prior art keywords
- stanchion
- triple
- cylinder
- utility
- liquid
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- Expired - Fee Related
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Abstract
The utility model relates to a low-position liquid-filling suspended single hydraulic stanchion which is in particular suitable for temporarily supporting the end head of a working face for general mechanized cannon mining and integrated mining in a coal mine. The hydraulic stanchion of the utility model is provided with a stanchion body, an oil cylinder is arranged at the top of the stanchion body, a movable pole and a restoring spring are arranged in the oil cylinder, the restoring spring is arranged on a suspension loop between the top of the movable pole and the stanchion body, a triple-purpose valve is arranged in the middle of the stanchion body, and a liquid-filling hole communicated with a cavity of the movable pole is arranged on the triple-purpose valve. The utility model has the advantages that the triple-purpose valve does not rise or fall along with the extension or withdrawal of the movable pole, the difficulty of high-position stanchion liquid-filling is solved, the comfort and the security of operation are increased, the work efficiency is improved, and the production cost is lowered, thereby having wide practicability.
Description
Technical field
The utility model relates to a kind of low level liquid injecting type suspension hydraulic prop, especially is used in colliery common mechanical blast mining face and fully-mechanized mining working faces end head temporary lining.
Background technology
The support apparatus of channel of coal mining working surface has multiple structures such as wooden prop, elemental metals friction prop, hydraulic prop and two flexible suspension pillars, in recent years, along with the continuous developmental research of engineers and technicians, support technology has had significant improvement, and progressively being tending towards perfect, wooden prop and elemental metals pillar seldom use; Hydraulic prop is the new product of development after the elemental metals friction prop, existing extensive use, it have in light weight, stroke is big, advantage such as pollution-free.But still have some problems: when the user used high-order hydraulic prop, the position of liquid injection port can be increased along with the increase of height, brings inconvenience to operating personnel, so that comfortableness, the safety of influence operation.
The utility model content
The technical problems to be solved in the utility model is: for problem such as the comfortableness that overcomes high-order pillar fluid injection difficulty, operation and safety be influenced, the utility model provides a kind of low level liquid injecting type suspension hydraulic prop, the post alive of pillar is not lifting thereupon of triple-use valve when stretching, and not only convenient, but also safety like this operates.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of low level liquid injecting type suspension hydraulic prop, has cylinder, cylinder top is provided with oil cylinder, be provided with post alive in the oil cylinder, post alive inside is provided with back-moving spring, the cylinder middle part is provided with triple-use valve, and triple-use valve is provided with the liquid injection hole that is communicated with the post cavity of living.
Described column top alive is fixedly connected with top cover.
Top in the described post alive is provided with seal cover, and the upper end of back-moving spring is arranged on the middle link of seal cover, and the lower end of back-moving spring is arranged on the middle link in cylinder top.
Described cylinder bottom is provided with base.
The beneficial effects of the utility model are: triple-use valve does not stretch and lifting with the post of living, does not increase along with the increase of height the position of liquid injection port, solved the difficult point of high-order pillar fluid injection, the comfortableness and the safety of operation have been increased simultaneously, improved operating efficiency, reduce cost of production, had practicality widely.
Description of drawings
Below in conjunction with accompanying drawing and example the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1. cylinder, 2. oil cylinder, the post of 3. living, 4. back-moving spring, 5. top cover, 6. seal cover, 7. triple-use valve, 8. base.
The specific embodiment
As shown in Figure 1, a kind of low level liquid injecting type suspension hydraulic prop, has cylinder 1, cylinder 1 top is provided with oil cylinder 2, be provided with post 3 alive and back-moving spring 4 in the oil cylinder 2, post 3 tops of living are fixedly connected with top cover 5, the post 3 interior seal covers 6 that are provided with through top of living, back-moving spring 4 upper ends are arranged on the link of seal cover 6 centres, and back-moving spring 4 lower ends are arranged on the middle link in cylinder 1 top; Cylinder 1 middle part is provided with triple-use valve 7, and triple-use valve 7 is provided with the liquid injection hole that is communicated with post 3 cavitys of living; Cylinder 1 bottom is provided with base 5.The post 3 of living can slide in oil cylinder 2 vertically, by the variable cavity space that seal cover 6, live post 3, oil cylinder 2, triple-use valve 7 and cylinder 1 etc. are surrounded, constitutes low level liquid injecting type suspension hydraulic prop.
The course of work of this low level liquid injecting type suspension hydraulic prop is: by triple-use valve 7 fluid injection in pillar, liquid enters in the cavity of post 3 alive by the liquid injection hole of triple-use valve 7, injection along with liquid, when reaching certain pressure, post 3 alive, seal cover 6 and top cover 5 rise supporting object when rising to certain altitude; When post fell in pillar, under the effect of back-moving spring 4, liquid leads to triple-use valve 7 by liquid injection hole discharged liquid, the every injection of liquid and discharging once, and pillar just supports and falls post once, and pillar is just finished a working cycles like this.
Claims (4)
1. low level liquid injecting type suspension hydraulic prop, has cylinder (1), cylinder (1) top is provided with oil cylinder (2), be provided with post alive (3) in the oil cylinder (2), post alive inside is provided with back-moving spring (4), it is characterized in that: cylinder (1) middle part is provided with triple-use valve (7), and triple-use valve (7) is provided with the liquid injection hole that is communicated with post (3) cavity of living.
2. a kind of low level liquid injecting type suspension hydraulic prop according to claim 1, it is characterized in that: described post alive (3) top is fixedly connected with top cover (5).
3. a kind of low level liquid injecting type suspension hydraulic prop according to claim 1, it is characterized in that: the top in the described post alive (3) is provided with seal cover (6), the upper end of back-moving spring (4) is arranged on the middle link of seal cover (6), and the lower end of back-moving spring (4) is arranged on the middle link in cylinder (1) top.
4. a kind of low level liquid injecting type suspension hydraulic prop according to claim 1, it is characterized in that: described cylinder (1) bottom is provided with base (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200397891U CN201218103Y (en) | 2008-06-27 | 2008-06-27 | Low-position liquid injection type suspending single-body hydraulic supporter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200397891U CN201218103Y (en) | 2008-06-27 | 2008-06-27 | Low-position liquid injection type suspending single-body hydraulic supporter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201218103Y true CN201218103Y (en) | 2009-04-08 |
Family
ID=40540940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200397891U Expired - Fee Related CN201218103Y (en) | 2008-06-27 | 2008-06-27 | Low-position liquid injection type suspending single-body hydraulic supporter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201218103Y (en) |
-
2008
- 2008-06-27 CN CNU2008200397891U patent/CN201218103Y/en not_active Expired - Fee Related
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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: 20090408 Termination date: 20110627 |