CN202596751U - Front canopy advance support using device - Google Patents
Front canopy advance support using device Download PDFInfo
- Publication number
- CN202596751U CN202596751U CN 201220267848 CN201220267848U CN202596751U CN 202596751 U CN202596751 U CN 202596751U CN 201220267848 CN201220267848 CN 201220267848 CN 201220267848 U CN201220267848 U CN 201220267848U CN 202596751 U CN202596751 U CN 202596751U
- Authority
- CN
- China
- Prior art keywords
- forestope
- roof
- front canopy
- vertical rod
- suspension ring
- 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 discloses a front canopy advance support using device which is a suspension ring with an adjustable height. The suspension ring adopts a structure that a connecting nut which can be matched with a roof support anchor rod is welded on the top side of a vertical rod; a sleeve is sleeved on the vertical rod; a steel plate with a round hole is welded at one side of the sleeve; the diameter of the round hole is matched with the outer diameter of a front canopy; screw threads are machined at the lower end of the vertical rod and a tray is arranged at the lower end of the vertical rod; and a regulating nut is screwed by the screw threads. The utility model ensures that in the construction process, the front canopy can move forward to the greatest extent, so that the operation space of the construction of an anchor net is maximized and is convenient for workers to construct; a forward part of the front canopy is clung to a roof, so that the integral supporting effect of a forward support is strengthened and even under the small-scale caving or underbreak condition of the roof, the roof can still be effectively supported.
Description
Technical field
Temporary lining when the utility model relates to tunnelling.
Background technology
At present, the spray of anchor net has become the development trend of roadway support technology.It has, and support cost is low, supporting effect good, singly advance the speed advantages of higher.In the process of anchor net spray support process development, corresponding supporting temporary lining is also being brought in constant renewal in, like wooden fore-set, band cap point post, forestope advance support etc.The forestope advance support has certain superiority when especially crossing tomography and incompetent bed zone of fracture.The technology relevant with the application is forestope advance support technology.
Find that in the tunnelling supporting practice itself still there are two drawbacks in forestope advance support technology.The one, forestope can not directly hold top board, does not have support action to a certain extent, only can play cushioning effect to the cash that collapses, and can not play the protective effect of essence to staff under the forestope; The 2nd, in the last driving of going down the hill, forestope is sliding to be prone to take off hurt sb.'s feelings.
The utility model content
In order to improve the safe coefficient of forestope advance support technology, the purpose of the utility model is to provide a kind of forestope advance support application apparatus.
A kind of forestope advance support application apparatus is characterized in that it is the suspension ring of an adjustment height; The structure of suspension ring is ability of the top side of montant welding and the supporting attaching nut of roof timbering anchor pole, to be with sleeve on the montant; One face down bonding of sleeve is connected to the steel plate in band circle hole; Diameter and the external diameter of forestope in circle hole are complementary, and the lower end of montant is processed with screw thread and pallet is installed, through the screw thread adjustment nut of screwing on.
In order to prevent the forestope slippage, retaining head and chaining should be established in the forestope rear end.
The utility model method for using is; In the tunnel during anchor net spray once supporting, the screw thread exposed junction of tunnel roll bolt 1 is reserved 30cm-50cm length, make the thread head of anchor pole expose the supporting surface; Again through the thread head of anchor pole and the attaching nut of suspension ring; Install the suspension ring of former and later two adjustment heights, forestope is penetrated in former and later two circle holes, pad is gone up chock in the gap of forestope and top board; Adjust and choose angle on the forestope through the adjustment nut, make forestope hold unsettled top board.
The utility model has the advantages that:
1, forestope can be moved forward as far as possible, make anchor net construction operation space reach maximization, make things convenient for the workman to construct;
2, can make and visit part before the forestope and be close to top board, strengthen the whole support action of front-probe support, under the small-sized inbreak of top board or the situation of owing to dig, also can carry out effective support top board;
3, the preceding partial-length of visiting of forestope can and be adjusted flexibly according to construction advance of working cycle and the variation of back situation;
When going down the hill tunnelling 4,, when forestope glided under action of gravity, sleeve rotated thereupon, formed auto-lock function.
Description of drawings
Fig. 1 is the front view of the new application apparatus suspension ring of this practicality;
Fig. 2 is the construction sketch map of the utility model.
Marginal data: 1-anchor pole; The 2-suspension ring; The 3-forestope; The 4-chock; 5a-keeps off head; The 5b-chaining; The 6-montant; 7-attaching nut; The 8-sleeve; The 9-pallet; 10-adjusts nut; The 11-steel plate; 12-circle hole.
The specific embodiment
As shown in Figure 1; The forestope advance support application apparatus of the utility model is an adjustable for height suspension ring 2, and suspension ring 2 structures are the supporting attaching nuts 7 of ability of welding and roof timbering anchor pole 1 in the top side of a montant 6, are with sleeve 8 on the montant 6; One face down bonding of sleeve 8 is connected to the steel plate 11 in band circle hole 12; The diameter in circle hole 12 and the external diameter of forestope 3 are complementary, and the lower end of montant 6 is processed with screw thread and pallet 9 is installed, and screw on through screw thread and adjust nut 10.
The utility model method for using is: when the anchor net sprays once supporting in the tunnel; The screw thread exposed junction of tunnel roll bolt 1 is reserved 30cm-50cm length; Make the thread head of anchor pole 1 expose the supporting surface,, install the suspension ring 2 of former and later two adjustment heights again through the thread head and the attaching nut 7 of anchor pole 1; Forestope 3 is penetrated in former and later two circle holes 12; Pad is gone up chock 4 in the gap of forestope 3 and top board, adjusts on the forestope 3 through adjustment nut 10 and chooses angle, makes forestope 3 hold unsettled top board.
Claims (1)
1. a forestope advance support application apparatus is characterized in that, it be one can degree of heightening suspension ring; The structure of suspension ring is ability of the top side of montant welding and the supporting attaching nut of roof timbering anchor pole, to be with sleeve on the montant; One face down bonding of sleeve is connected to the steel plate in band circle hole; Diameter and the external diameter of forestope in circle hole are complementary, and the lower end of montant is processed with screw thread and pallet is installed, through the screw thread adjustment nut of screwing on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220267848 CN202596751U (en) | 2012-05-31 | 2012-05-31 | Front canopy advance support using device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220267848 CN202596751U (en) | 2012-05-31 | 2012-05-31 | Front canopy advance support using device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202596751U true CN202596751U (en) | 2012-12-12 |
Family
ID=47314298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220267848 Expired - Fee Related CN202596751U (en) | 2012-05-31 | 2012-05-31 | Front canopy advance support using device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202596751U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733831A (en) * | 2012-05-31 | 2012-10-17 | 山东科技大学 | Forepoling bar forpoling construction method and device used |
| CN103670463A (en) * | 2013-12-19 | 2014-03-26 | 山东华宁矿业集团有限公司 | Hanging type forepoling bar |
| CN106285741A (en) * | 2016-10-13 | 2017-01-04 | 王玉林 | A kind of front canopy hoisting ring |
-
2012
- 2012-05-31 CN CN 201220267848 patent/CN202596751U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733831A (en) * | 2012-05-31 | 2012-10-17 | 山东科技大学 | Forepoling bar forpoling construction method and device used |
| CN102733831B (en) * | 2012-05-31 | 2014-10-22 | 山东科技大学 | Forepoling bar forpoling construction method and device used |
| CN103670463A (en) * | 2013-12-19 | 2014-03-26 | 山东华宁矿业集团有限公司 | Hanging type forepoling bar |
| CN106285741A (en) * | 2016-10-13 | 2017-01-04 | 王玉林 | A kind of front canopy hoisting ring |
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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: 20121212 Termination date: 20150531 |
|
| EXPY | Termination of patent right or utility model |