CN203867592U - Buffer tilting-preventing hydraulic support - Google Patents
Buffer tilting-preventing hydraulic support Download PDFInfo
- Publication number
- CN203867592U CN203867592U CN201420207901.3U CN201420207901U CN203867592U CN 203867592 U CN203867592 U CN 203867592U CN 201420207901 U CN201420207901 U CN 201420207901U CN 203867592 U CN203867592 U CN 203867592U
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- China
- Prior art keywords
- hydraulic prop
- oil cylinder
- type oil
- safety valve
- buffer
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- Expired - Fee Related
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Abstract
The utility model discloses a buffer tilting-preventing hydraulic support which comprises a top beam, a single hydraulic prop and a socket type oil cylinder. The top beam is erected on the single hydraulic prop and provided with a hanging ring, a top beam hook is hung on the hanging ring, the top beam hook is connected with a lantern ring through a connecting rope, the lantern ring is installed on the single hydraulic prop, a main safety valve is arranged on the single hydraulic prop, the bottom end of the single hydraulic prop is connected with the socket type oil cylinder, the socket type oil cylinder comprises an oil cylinder piston and an oil chamber, and the side wall of the socket type oil cylinder is provided with an oil injection valve and a buffer safety valve which are connected with the oil chamber. The buffer tilting-preventing hydraulic support has the advantages of being simple and reasonable in structure, good in buffer operation effect, high in impact load bearing capability and reliable to use. The single hydraulic prop is prevented from being damaged and is effectively prevented from being tilted, the probability of tunnel collapsing is lowered, potential safety hazards are removed, and casualty accidents are greatly reduced.
Description
Technical field
The utility model relates to support apparatus under a kind of coal mine, specifically the anti-down hydraulic support of a kind of buffering.
Background technology
At present, monomer hydraulic bracket assembly is as a kind of mode of colliery tunnel support, supporting intensity generally can meet requirement of engineering, but opposing shock loading ability, when top board is pressed fast, main safety valve on monomer hydraulic bracket assembly carrys out not anxious unlatching, deformation of timbering space is little, there is cylinder body spalling, when monomer hydraulic bracket is used in down-hole, often can cause post of empty top because big gun collapses, or because causing with upper articulated roof beam, hydraulic support self pressure release departs to fall post, there is injuring by a crashing object personnel's accident, for preventing the generation of this type of accident, the normal way that adopts iron wire or rope made of hemp binding, but complex operation while making in this way, workload is large, high material consumption, and security reliability is poor.
Summary of the invention
The purpose of this utility model is to provide a kind of resistance to shock loads ability high, can effectively prevent the anti-down hydraulic support of buffering that pillar falls down, to solve the problem proposing in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
The anti-down hydraulic support of a kind of buffering, comprise back timber, hydraulic prop and female type oil cylinder, described back timber is erected on hydraulic prop, on described back timber, be provided with link, the S shape hook that described back timber hook is made for reinforcing bar, be mounted on link, described back timber hook is connected with the collar by connection cord, the described collar is sleeved on hydraulic prop, on described hydraulic prop, be provided with main safety valve, the bottom of described hydraulic prop is connected with female type oil cylinder, described female type oil cylinder comprises oil cylinder piston and oil-in chamber, the gentle safety valve that rushes of the oiling valve being connected with oil-in chamber is installed on described female type oil cylinder sidewall, the threshold values of described baffle safety valve is less than the threshold values of main safety valve.
As further program of the utility model: the internal diameter of the collar is less than the diameter of termination, hydraulic prop top, prevents that the collar from skidding off from the top of hydraulic prop.
Compared with prior art, the beneficial effects of the utility model are: the utility model is connected together by connection cord the back timber hook connecting that is fixed on the collar on hydraulic prop and be fixedly connected on back timber, when monomer hydraulic bracket will fall down, connection cord can tightly be connected on back timber by hydraulic prop, effectively prevent that pillar from falling down, and when removing, pillar can fast remove anti-down rope, in hydraulic prop bottom, a female type oil cylinder is set, played good buffering effect, have simple and reasonable, cushion task is effective, bear shock loading ability strong, eliminate safe hidden trouble, reduced the probability that collapse in tunnel and personnel casualty accidents occurs, use reliable.
Accompanying drawing explanation
Fig. 1 tests novel structural representation for this.
The specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, the anti-down hydraulic support of a kind of buffering, comprise back timber 1, hydraulic prop 2 and female type oil cylinder 3, described back timber 1 is erected on hydraulic prop 2, on described back timber 1, be provided with link 4, the S shape hook that described back timber hook 5 is made for reinforcing bar, be mounted on link 4, described back timber hook 5 is connected with the collar 7 by connection cord 6, the described collar 7 is sleeved on hydraulic prop 2, the internal diameter of the described collar 7 is less than the diameter of hydraulic prop 2 terminations, top 13, prevent that the collar 7 from skidding off from the top of hydraulic prop 2, on described hydraulic prop 2, be provided with main safety valve 8, the bottom of described hydraulic prop 2 is connected with female type oil cylinder 3, described female type oil cylinder 3 comprises oil cylinder piston 9 and oil-in chamber 10, the oiling valve 11 and the buffering safety valve 12 that are connected with oil-in chamber 10 are installed on described female type oil cylinder 3 sidewalls, the threshold values of described baffle safety valve 12 is less than the threshold values of main safety valve 8.
Operating principle of the present utility model is: by oiling valve 11, in oil-in chamber 10, fill with oil, close oiling valve 11, when hydraulic prop 2 is subject to shock loading, hydraulic prop 2 is by the oil in oil cylinder piston 9 extruding oil-in chamber 10, because the threshold values of the baffle safety valve 12 on female type oil cylinder 3 is less than the threshold values of the main safety valve 8 on hydraulic prop 2, when oil body is extruded pressure and reaches the threshold values of baffle safety valve 12, oil in oil-in chamber 10 is opened baffle safety valve 12, from female type oil cylinder 3, discharge, complete cushion task, for hydraulic prop 2 distortion provide space, avoided the damage of hydraulic prop 2, for main safety valve 8 is provided by the time that provides, during hydraulic prop 2 pressure release, connection cord 6 can be linked up with 5 by back timber single hydraulic prop 2 is tightly connected on back timber 1, effectively prevent that hydraulic prop 2 from falling down, eliminate safe hidden trouble.
To those skilled in the art, obviously the utility model is not limited to the details of above-mentioned one exemplary embodiment, and in the situation that not deviating from spirit of the present utility model or essential characteristic, can realize the utility model with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than above-mentioned explanation, is therefore intended to include in the utility model dropping on the implication that is equal to important document of claim and all changes in scope.Any Reference numeral in claim should be considered as limiting related claim.
In addition, be to be understood that, although this manual is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of manual is only for clarity sake, those skilled in the art should make manual as a whole, and the technical scheme in each embodiment also can, through appropriately combined, form other embodiments that it will be appreciated by those skilled in the art that.
Claims (2)
1. one kind is cushioned anti-down hydraulic support, comprise back timber (1), hydraulic prop (2) and female type oil cylinder (3), it is characterized in that: described back timber (1) is erected on hydraulic prop (2), on described back timber (1), be provided with link (4), the S shape hook that described back timber hook (5) is made for reinforcing bar, be mounted on link (4), described back timber hook (5) is connected with the collar (7) by connection cord (6), the described collar (7) is sleeved on hydraulic prop (2), on described hydraulic prop (2), be provided with main safety valve (8), the bottom of described hydraulic prop (2) is connected with female type oil cylinder (3), described female type oil cylinder (3) comprises oil cylinder piston (9) and oil-in chamber (10), the oiling valve (11) and the buffering safety valve (12) that are connected with oil-in chamber (10) are installed on described female type oil cylinder (3) sidewall, the threshold values of described baffle safety valve (12) is less than the threshold values of main safety valve (8).
2. the anti-down hydraulic support of buffering according to claim 1, is characterized in that, the internal diameter of the collar (7) is less than the diameter of hydraulic prop (2) termination, top (13), prevents that the collar (7) from skidding off from the top of hydraulic prop (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420207901.3U CN203867592U (en) | 2014-04-28 | 2014-04-28 | Buffer tilting-preventing hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420207901.3U CN203867592U (en) | 2014-04-28 | 2014-04-28 | Buffer tilting-preventing hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203867592U true CN203867592U (en) | 2014-10-08 |
Family
ID=51648562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420207901.3U Expired - Fee Related CN203867592U (en) | 2014-04-28 | 2014-04-28 | Buffer tilting-preventing hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203867592U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110284912A (en) * | 2019-07-20 | 2019-09-27 | 山西能源学院 | A kind of hydraulic prop for mine is from gravity pressure relief buffering mechanism |
-
2014
- 2014-04-28 CN CN201420207901.3U patent/CN203867592U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110284912A (en) * | 2019-07-20 | 2019-09-27 | 山西能源学院 | A kind of hydraulic prop for mine is from gravity pressure relief buffering mechanism |
| CN110284912B (en) * | 2019-07-20 | 2020-08-25 | 山西能源学院 | Self-gravity pressure relief buffer device for mining hydraulic prop |
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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: 20141008 Termination date: 20150428 |
|
| EXPY | Termination of patent right or utility model |