CN202692854U - Air spacer for blast hole - Google Patents
Air spacer for blast hole Download PDFInfo
- Publication number
- CN202692854U CN202692854U CN 201220407215 CN201220407215U CN202692854U CN 202692854 U CN202692854 U CN 202692854U CN 201220407215 CN201220407215 CN 201220407215 CN 201220407215 U CN201220407215 U CN 201220407215U CN 202692854 U CN202692854 U CN 202692854U
- Authority
- CN
- China
- Prior art keywords
- blast hole
- fixing sleeve
- hole
- air
- fixed sleeving
- 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
Links
Abstract
The utility model discloses an air spacer for a blast hole. The air spacer for the blast hole comprises a rubber bowl, a fixing sleeve and a movable sleeve which is arranged in the fixing sleeve, the bottom of a rubber cup is fixed on an upper end port of the movable sleeve, and bolt holes are radially arranged on the outer circumference of the fixing sleeve and the movable sleeve along the axial direction of the fixing sleeve and the movable sleeve in opposite penetrating mode. The bolt holes on the outer circumference of the fixing sleeve correspond to that of the movable sleeve, a bolt is arranged in a bolt hole, and the lower end face of the fixing sleeve is sealed. In the filling process into the blast hole, a tamping bar is used to push the rubber bowl on the air spacing position, the rubber bowl is extruded and deformed in the blast hole, the rubber bowl is closely attached to the inner wall of the blast hole, so that the aim of air spacing in the blast hole is achieved. In addition, because the movable sleeve can axially move in the fixing sleeve, so that the depth of the air spacing in the blast hole can be adjusted. The air spacer for the blast hole is simple in operation and wide in application scope.
Description
Technical field
The utility model relates to demolition set, especially a kind of air-spacer of blast hole filling explosive.
Background technology
The airspace powder charge is generally adopted in now surface blasting, the airspace powder charge can increase the action time of burst stress ripple, reduced the surge pressure of shock wave on the big gun hole wall, can improve demolition effect, reduce blasting cost, in, obtain a wide range of applications in the dark blast hole bench blasting; The air-spacer of using in the market utilizes the inflation principle that polyethylene plastic bag is carried out inflation, reaches the purpose of airspace.This kind air-spacer not only price is higher, and troublesome poeration, and can not regulate length, in, the dark inconsistent situation of the blast hole bench blasting ubiquity blast hole degree of depth, therefore in the situation that same air stratum proportion needs the air-spacer of different depth could satisfy the engineering application demand.
As from the foregoing, above-mentioned explosion air-spacer obviously exists defective and deficiency, and is to be improved.
Summary of the invention
For the deficiencies in the prior art, the utility model aims to provide a kind of blast hole air-spacer, guaranteeing to regulate the airspace degree of depth in the blast hole, and simple to operate, to satisfy the actual demand of different depth blast hole.
The technical solution of the utility model: a kind of blast hole air-spacer, comprise rubber bowl and fixed sleeving and be loaded on the interior moving casing of fixed sleeving, the upper port of moving casing is fixed in the rubber bowl bottom, axial along fixed sleeving and moving casing, radially put bolt hole to wearing at fixed sleeving and moving casing outer circumference surface, fixed sleeving is corresponding with the bolt hole of moving casing outer circumference surface, in a bolt hole bolt is set therein, the lower surface sealing of fixed sleeving.
The spacing of adjacent two bolts hole is 5 centimetres on fixed sleeving and the moving casing outer circumference surface.
Adopt above-mentioned blast hole air-spacer, because rubber bowl has certain deformability, in filling process in blast hole, can directly utilize tamper that rubber bowl is pushed in the airspace locates, rubber bowl is extruded in blast hole and deforms, rubber bowl and blast hole inwall closely stick together, thereby the purpose of airspace in the realization blast hole, in addition, because moving casing can move axially in fixed sleeving, and in the bolt hole by fixed sleeving and moving casing outer circumference surface bolt is set and fixes, can regulate like this degree of depth of airspace in the blast hole.
The utility model is simple to operate, and is applied widely.
Description of drawings
Fig. 1 is the utility model structural representation;
In the accompanying drawing: 1 rubber bowl, 2 fixed sleevings, 3 moving casings, 4 bolts hole, 5 bolts.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the upper port of moving casing 3 is fixed in rubber bowl 1 bottom, rubber bowl 1 is connected into one with moving casing 3, the rim of a bowl diameter of rubber bowl 1 can be made 110 millimeters, 160 millimeters, 220 millimeters several, to satisfy 90 millimeters respectively, 140 millimeters, 200 millimeters blast hole, axial along fixed sleeving 2 and moving casing 3, radially put bolt hole 4 to wearing at fixed sleeving 2 and moving casing 3 outer circumference surfaces, fixed sleeving 2 is corresponding with the bolt hole 4 of moving casing 3 outer circumference surfaces, and the spacing of adjacent two bolts hole 4 is 5 centimetres on fixed sleeving 2 and moving casing 3 outer circumference surfaces; Bolt hole 4 interior bolts 5 that arrange therein, the length of certainly putting bolt 5 must be less than the diameter of blast hole, by the bolt 5 on mounting or dismounting fixed sleeving 2 and the moving casing 3, the bolt hole 4 of the diverse location on bolt 5 and fixed sleeving 2 and the moving casing 3 is cooperated, just can regulate length of the present utility model; The lower surface sealing of fixed sleeving 2.
Claims (2)
1. blast hole air-spacer, it is characterized in that: comprise rubber bowl (1) and fixed sleeving (2) and be loaded on the interior moving casing (3) of fixed sleeving (2), the upper port of moving casing (3) is fixed in rubber bowl (1) bottom, axial along fixed sleeving (2) and moving casing (3), radially put bolt hole (4) to wearing at fixed sleeving (2) and moving casing (3) outer circumference surface, fixed sleeving (2) is corresponding with the bolt hole (4) of moving casing (3) outer circumference surface, in the bolt hole (4) bolt (5) is set therein, the lower surface sealing of fixed sleeving (2).
2. a kind of blast hole air-spacer according to claim 1, it is characterized in that: the spacing of adjacent two bolts hole (4) is 5 centimetres on fixed sleeving (2) and moving casing (3) outer circumference surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220407215 CN202692854U (en) | 2012-08-17 | 2012-08-17 | Air spacer for blast hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220407215 CN202692854U (en) | 2012-08-17 | 2012-08-17 | Air spacer for blast hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202692854U true CN202692854U (en) | 2013-01-23 |
Family
ID=47548462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220407215 Expired - Fee Related CN202692854U (en) | 2012-08-17 | 2012-08-17 | Air spacer for blast hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202692854U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940308A (en) * | 2014-04-09 | 2014-07-23 | 中国矿业大学 | Air spaced explosive charging method and device for cannon hole with water |
| CN105874299A (en) * | 2013-12-24 | 2016-08-17 | 李辰成 | Explosive tube having air gap and method of blasting bedrock using same |
| CN108871114A (en) * | 2018-05-20 | 2018-11-23 | 中交公局第四工程有限公司 | A kind of bench blasting air-spacer |
| CN109238060A (en) * | 2018-10-31 | 2019-01-18 | 唐山冀东启新水泥有限责任公司 | Airspace structure and method for mine blasting |
-
2012
- 2012-08-17 CN CN 201220407215 patent/CN202692854U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105874299A (en) * | 2013-12-24 | 2016-08-17 | 李辰成 | Explosive tube having air gap and method of blasting bedrock using same |
| CN105874299B (en) * | 2013-12-24 | 2018-11-16 | 李辰成 | It is provided with the charge tube of air gap and the rock blasting construction method using this charge tube |
| CN103940308A (en) * | 2014-04-09 | 2014-07-23 | 中国矿业大学 | Air spaced explosive charging method and device for cannon hole with water |
| CN108871114A (en) * | 2018-05-20 | 2018-11-23 | 中交公局第四工程有限公司 | A kind of bench blasting air-spacer |
| CN109238060A (en) * | 2018-10-31 | 2019-01-18 | 唐山冀东启新水泥有限责任公司 | Airspace structure and method for mine blasting |
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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: 20130123 Termination date: 20160817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |