CN105525932B - Anti-block mine individual hydraulic prop - Google Patents
Anti-block mine individual hydraulic prop Download PDFInfo
- Publication number
- CN105525932B CN105525932B CN201610021876.3A CN201610021876A CN105525932B CN 105525932 B CN105525932 B CN 105525932B CN 201610021876 A CN201610021876 A CN 201610021876A CN 105525932 B CN105525932 B CN 105525932B
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- movable post
- annular
- limit platform
- piston head
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/60—Devices for withdrawing props or chocks
Abstract
A kind of anti-block mine individual hydraulic prop, cylinder body top is equipped with handle body, movable post is located at cylinder interior and is slidingly sealed cooperation by the inner wall of piston head and cylinder body that its lower end is arranged in, the top of movable post is equipped with top cover, the lower periphery of cylinder body is set with valve seat, triple-use valve is equipped in valve seat, triple-use valve is penetrated through by the liquid injection hole and inner chamber of cylinder block being radially arranged on cylinder body, inner chamber of cylinder block is equipped with annular lower limit platform on liquid injection hole top, the bottom of piston head above annular lower limit platform is equipped with spring base, cylinder body bottom end is radially provided with fixed link, it is connected between spring base and fixed link by tension spring；Handle body and the external cylindrical surface of movable post are slidingly sealed cooperation, and cylinder body top is equipped with the annular upper limit platform for being limited to piston head, and cylinder body is equipped with note wind channel between annular upper limit platform and handle body.The hydraulic prop is effective to ensure that the normal recycling of movable post, can improve the safety coefficient of underground supporting operation.
Description
Technical field
The present invention relates to mining equiments, and in particular to a kind of anti-block mine individual hydraulic prop.
Background technique
Hydraulic prop is widely used in coal mine down-hole tunnel and working face as support apparatus, lives in actual use
Card resistance phenomenon can occur during recycling for column, so that movable post cannot proceed normally recycling, to influence underground supporting operation
Working efficiency, also bring along safe trouble to a certain extent.
Summary of the invention
In view of the above existing problems in the prior art, the present invention provides a kind of anti-block mine individual hydraulic prop, the lists
Body hydraulic prop is effective to ensure that the normal recycling of movable post, can improve the safety coefficient of underground supporting operation.
To achieve the goals above, the present invention provides a kind of anti-block mine individual hydraulic prop, including movable post, cylinder body,
The cylinder base is equipped with pedestal, and cylinder body top is equipped with handle body, and movable post is located at cylinder interior and by the way that its lower end is arranged in
The inner wall of piston head and the cylinder body is slidingly sealed cooperation, and the top of movable post is equipped with top cover, and the lower periphery of the cylinder body is set with
There is a valve seat, be equipped with triple-use valve in the valve seat, the triple-use valve passes through the liquid injection hole and inner chamber of cylinder block that are radially arranged on cylinder body
Perforation, the inner chamber of cylinder block are equipped with annular lower limit platform on liquid injection hole top, the piston head above annular lower limit platform
Bottom is equipped with spring base, and cylinder body bottom end is radially provided with fixed link, is connected between spring base and fixed link by tension spring；Handle body with
The external cylindrical surface of movable post is slidingly sealed cooperation, and the cylinder body top is equipped with the annular upper limit for being limited to piston head
Platform, cylinder body are equipped with note wind channel between annular upper limit platform and handle body.
Further, for the ease of the fast inserted of movable post and top cover, and it can guarantee between movable post and top cover have preferably
Bonding strength, the top cover are sleeved on the top of movable post, and the tip exterior of the movable post is equipped with outer ring step one, the top cover
Lower part has sleeve, and the sleeve upper section internal diameter is adapted with the size of movable post outer ring step one, and sleeve lower section is equipped with and work
The compatible annular step one of column outer diameter.
Further, to increase the supporting height of the hydraulic prop, while higher safety coefficient is also ensured, the annular
The distance of lower limit platform to pedestal is the one third of cylinder body total length.
The present invention can be logical by note wind by air compressor when card resistance occurs for movable post by the setting in note wind channel
High pressure gas is injected in the seal cavity space that road is surrounded to handle body, movable post external cylindrical surface, the inner cylinder face of cylinder body and piston head
Body guarantees the normal recycling of movable post to push movable post to move downward, and then can guarantee the working efficiency of underground supporting operation, mentions
The safety coefficient of high supporting operation.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram on movable post top in the present invention；
Fig. 3 is the structural schematic diagram of top cover in the present invention；
Fig. 4 is the partial enlarged view in the present invention.
In figure: 1, movable post, 2, cylinder body, 3, pedestal, 4, handle body, 5, piston head, 6, sleeve, 7, valve seat, 8, triple-use valve,
9, liquid injection hole, 10, annular lower limit platform, 11, spring base, 12, fixed link, 13, tension spring, 14, outer ring step one, 15, annular
Upper limit platform, 16, note wind channel, 17, annular step one, 18, top cover.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
As shown in Figures 1 to 4, a kind of anti-block mine individual hydraulic prop, including movable post 1, cylinder body 2,2 bottom of cylinder body
Portion is equipped with pedestal 3, and 2 top of cylinder body is equipped with handle body 4, and movable post 1 is located at 2 inside of cylinder body and the piston head by the way that its lower end is arranged in
5 are slidingly sealed cooperation with the inner wall of the cylinder body 2, and the top of movable post 1 is equipped with top cover 18, the lower periphery suit of the cylinder body 2
There is a valve seat 7, be equipped with triple-use valve 8 in the valve seat 7, the triple-use valve 8 passes through the liquid injection hole 9 and cylinder that are radially arranged on cylinder body 2
The perforation of 2 inner cavity of body, 2 inner cavity of cylinder body are equipped with annular lower limit platform 10 on 9 top of liquid injection hole, are located on annular lower limit platform 10
The bottom of the piston head 5 of side is equipped with spring base 11, and 2 bottom end of cylinder body is radially provided with fixed link 12, spring base 11 and fixed link 12 it
Between connected by tension spring 13；The external cylindrical surface of handle body 4 and movable post 1 is slidingly sealed cooperation, and 2 top of cylinder body, which is equipped with, to be used for pair
The annular upper limit platform 15 that piston head 5 is limited, it is logical that cylinder body 2 is equipped with note wind between annular upper limit platform 15 and handle body 4
Road 16.
The top cover 18 is sleeved on the top of movable post 1, and the tip exterior of the movable post 1 is equipped with outer ring step 1, institute
18 lower part of top cover is stated with sleeve 6, the 6 upper section internal diameter of sleeve is adapted with the size of 1 outer ring step 1 of movable post, sleeve
6 lower sections are equipped with annular step 1 compatible with 1 outer diameter of movable post.
The distance of annular lower limit platform 10 to the pedestal 3 is the one third of 2 total length of cylinder body.
Setting by infusing wind channel 16 can pass through note wind channel by air compressor when card resistance occurs for movable post 1
The 16 seal cavity space injection height surrounded to handle body 4,1 external cylindrical surface of movable post, the inner cylinder face of cylinder body 2 and piston head 5
It calms the anger body, to push movable post 1 to move downward, guarantees the normal recycling of movable post 1, and then can guarantee the work effect of underground supporting operation
Rate improves the safety coefficient of supporting operation.
Claims (3)
1. a kind of anti-block mine individual hydraulic prop, including movable post (1), cylinder body (2), cylinder body (2) bottom is equipped with pedestal
(3), cylinder body (2) top is equipped with handle body (4), and movable post (1) is located at cylinder body (2) inside and the piston head by the way that its lower end is arranged in
(5) cooperation is slidingly sealed with the inner wall of the cylinder body (2), the top of movable post (1) is equipped with top cover (18), which is characterized in that described
The lower periphery of cylinder body (2) is set with valve seat (7), is equipped with triple-use valve (8) in the valve seat (7), and the triple-use valve (8) passes through diameter
It is penetrated through to the liquid injection hole (9) and cylinder body (2) inner cavity being arranged on cylinder body (2), cylinder body (2) inner cavity is on liquid injection hole (9) top
Equipped with annular lower limit platform (10), the bottom for being located at the piston head (5) above annular lower limit platform (10) is equipped with spring base (11),
Cylinder body (2) bottom end is radially provided with fixed link (12), is connected between spring base (11) and fixed link (12) by tension spring (13)；Hand handle
Body (4) and the external cylindrical surface of movable post (1) are slidingly sealed cooperation, and cylinder body (2) top is equipped with for limiting piston head (5)
The annular upper limit platform (15) of position, cylinder body (2) are equipped with note wind channel between annular upper limit platform (15) and handle body (4)
(16).
2. a kind of anti-block mine individual hydraulic prop according to claim 1, which is characterized in that top cover (18) set
Mounted in the top of movable post (1), the tip exterior of the movable post (1) is equipped with outer ring step one (14), top cover (18) lower part
With sleeve (6), sleeve (6) the upper section internal diameter is adapted with the size of movable post (1) outer ring step one (14), sleeve (6)
Lower section is equipped with annular step one (17) compatible with movable post (1) outer diameter.
3. a kind of anti-block mine individual hydraulic prop according to claim 1, which is characterized in that the annular lower limit
The distance of platform (10) to pedestal (3) is the one third of cylinder body (2) total length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610021876.3A CN105525932B (en) | 2016-01-13 | 2016-01-13 | Anti-block mine individual hydraulic prop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610021876.3A CN105525932B (en) | 2016-01-13 | 2016-01-13 | Anti-block mine individual hydraulic prop |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105525932A CN105525932A (en) | 2016-04-27 |
| CN105525932B true CN105525932B (en) | 2019-05-17 |
Family
ID=55768416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610021876.3A Active CN105525932B (en) | 2016-01-13 | 2016-01-13 | Anti-block mine individual hydraulic prop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105525932B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1606706A1 (en) * | 1988-05-20 | 1990-11-15 | Тульский Политехнический Институт | Hydraulic prop of mine support |
| CN201129182Y (en) * | 2007-12-12 | 2008-10-08 | 刘道香 | Reinforcement oil cylinder type single hydraulic prop for mining without welding column cap |
| CN201554476U (en) * | 2009-12-03 | 2010-08-18 | 刘宝生 | External-liquid-injection-type mining monomer hydraulic prop |
| CN102022128A (en) * | 2011-01-06 | 2011-04-20 | 王洁 | Gas and liquid strut |
| CN202047833U (en) * | 2011-05-22 | 2011-11-23 | 中国矿业大学 | Mining single hydraulic prop |
-
2016
- 2016-01-13 CN CN201610021876.3A patent/CN105525932B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1606706A1 (en) * | 1988-05-20 | 1990-11-15 | Тульский Политехнический Институт | Hydraulic prop of mine support |
| CN201129182Y (en) * | 2007-12-12 | 2008-10-08 | 刘道香 | Reinforcement oil cylinder type single hydraulic prop for mining without welding column cap |
| CN201554476U (en) * | 2009-12-03 | 2010-08-18 | 刘宝生 | External-liquid-injection-type mining monomer hydraulic prop |
| CN102022128A (en) * | 2011-01-06 | 2011-04-20 | 王洁 | Gas and liquid strut |
| CN202047833U (en) * | 2011-05-22 | 2011-11-23 | 中国矿业大学 | Mining single hydraulic prop |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105525932A (en) | 2016-04-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190425 Address after: 221000 Mau village, Copper Mt. District, Xuzhou, Jiangsu Applicant after: XUZHOU LIFANG ELECTROMECHANICAL EQUIPMENT MANUFACTURING CO., LTD. Address before: 221000 Copper Mt. Town, Copper Mt. District, Xuzhou, Jiangsu Xinzhuang village Beijing Road West Applicant before: Steel construction Co., Ltd of Jiangsu Huahai |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |