CN203083464U - Shot hole wedge-shaped body blocking device - Google Patents
Shot hole wedge-shaped body blocking device Download PDFInfo
- Publication number
- CN203083464U CN203083464U CN 201220701187 CN201220701187U CN203083464U CN 203083464 U CN203083464 U CN 203083464U CN 201220701187 CN201220701187 CN 201220701187 CN 201220701187 U CN201220701187 U CN 201220701187U CN 203083464 U CN203083464 U CN 203083464U
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- wedge
- shot hole
- shaped
- borehole
- blocking device
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Abstract
The utility model belongs to the technical field of engineering blasting shot hole blocking, and particularly relates to a shot hole wedge-shaped body blocking device. The shot hole wedge-shaped body blocking device solves the problem that all existing shot hole plugs are low in reliability, not high in blocking rate, unsatisfactory in application and inharmonious with development of modernization mines. The shot hole wedge-shaped body blocking device comprises two wedge-shaped blocks which are matched for use, the two wedge-shaped blocks include a wedge-shaped block I and a wedge-shaped block II, both an inner surface and an outer surface of the wedge-shaped block I with a big end towards the bottom of a shot hole are smooth, an inner surface of the wedge-shaped block II with a small end towards the bottom of the shot hole is smooth, inversed bayonets are arranged on an outer surface of the wedge-shaped block II, and angles of the two wedge-shaped blocks are smaller than self-locking angles of the two wedge-shaped blocks. The shot hole wedge-shaped blocking device has the following advantages of preventing further movement of a stressed shot hole plug to a shot hole opening, improving blocking effects and improving blasting effects and use ratio of the shot hole.
Description
Technical field
The utility model belongs to the technical field of engineering explosion perforation plugging, is specifically related to a kind of borehole sphenoid blanking plug.
Background technology
Rise the eighties in 20th century, begins to pay attention to the blast hole stemming problem both at home and abroad, and carried out a series of researchs such as wad act mechanism, choke material, filling length.Studies show that rational filling can improve detonation gas pressure and the action time that prolongs detonation gas pressure in the big gun hole; Promote that explosive fully reacts, make it to discharge maximum energy, produce minimum toxic gas; Stop freely overflowing of detonation gas, reduce the loss of explosion energy, detonation gas pressure, improve the thermal efficiency of explosive, improve the acting ability of explosive; Stop red-hot solid particle to be penetrated outward and spray outward, effectively prevent the blast of gas and coal dust with explosive flame; Effectively regulate the reasonable distribution of explosion energy, increase effective merit of broken rock, reduce the idle work that causes air-shock wave, slungshot, rock mass vibration etc.
The mechanical action formula of having used is at present stopped up: primary structure has forms such as end vertebra shape, wedge shape, setscrew shape, and making rapidoprint has plastics, rubber, timber etc.This type of tamping plug adaptability is strong, easy to use, cost is low, but it exists reliability lower, the problem that plugging rate is not high, should use all very undesirable, with the inharmonic problem of the development of modernized mine.
Summary of the invention
Goal of the invention of the present utility model: all exist reliability lower in order to solve existing tamping plug, plugging rate is not high, should use all very undesirablely, with the inharmonic problem of the development of modernized mine, provides a kind of borehole sphenoid blanking plug.
The utility model adopts following technical scheme to realize:
Borehole sphenoid blanking plug, it is characterized in that comprising two wedges that are used, described two wedges comprise wedge I and wedge II, the surfaces externally and internally of the wedge I of stub end at the bottom of borehole is smooth, the inner surface of the wedge II of little head end at the bottom of borehole is smooth, outer surface is provided with inverted gun thorn, two wedge angles less than it from the locking angle.
The inner surface center of wedge I axially offers the slotted eye that the detonator payment to a porter can be passed along borehole.The length of wedge II is less than the length of sphenoid I.
This use is novel to have following beneficial effect: stoped stressed tamping plug further to move to heel, improved the effect of blocking, improved the demolition effect of borehole and the utilization rate of borehole.
Description of drawings
Fig. 1 is the utility model structural representation,
Among the figure: 1-wedge I, 2-wedge II, 3-payment to a porter slotted eye, 4-inverted gun thorn.
The specific embodiment
In conjunction with the accompanying drawings the specific embodiment of the present utility model is described further.
In order to stop stressed tamping plug further to move to the big gun aperture, improve the effect of stopping up, in the big gun aperture sphenoid blanking plug is set.As shown in Figure 1, the sphenoid blanking plug comprises two wedges that are used.
The initial stage locking of wedge shape blockage body is by artificial effect, wedge I 1 major part is at the bottom of borehole, by artificial predetermined fixed at heel, microcephaly with wedge II 2 inserts the big gun hole at the bottom of borehole then, by the major part that manually clashes into wedge II 2 with hand hammer, earlier sphenoid is realized the spalling locking, so that make blanking plug that initial occlusion resistance can be provided, thereby realize the obstruction of borehole, and the further locking spalling of later stage sphenoid is to lean on the impetus of the inner blasting impact ripple of borehole to realize, the major part of the inner blasting impact wave impact of borehole wedge I, thus make wedge I and sphenoid II realize relative motion once more, reach further spalling and stop up.
The surfaces externally and internally of the wedge I of stub end at the bottom of borehole is smooth, and purpose is to be convenient to produce relative motion with the sphenoid II under the percussion of the inner blasting impact ripple of borehole, realizes further spalling self-locking, stops up effect thereby further improve.The inner surface of the wedge II of microcephaly at the bottom of borehole is smooth, outer surface is provided with inverted gun thorn, so that when the oriented heel mobile trend of sphenoid I, increase the frictional resistance of itself and borehole wall, impel the wedge II motionless as much as possible, thereby force the wedge I can produce relative slippage, reach the purpose of further spalling obstruction with the wedge II;
Two wedge angles from the locking angle, are 22 ° from locking angle calculated value less than it generally, and the sphenoid angle is got 20 °.
The inner surface center of wedge I 1 axially offers the payment to a porter slotted eye 3 that the detonator payment to a porter can be passed along borehole, so that payment to a porter is therefrom passed and the damage that can not be squeezed easily.
The length of wedge II 2 is shorter than the length of sphenoid I 1, after its objective is the self-locking of blanking plug initial stage, outside the microcephaly of sphenoid II can not be exposed to, the blasting impact ripple is mainly acted on the major part of sphenoid I, impel sphenoid I 1 to realize further relative slip, realize further self-locking obstruction with wedge II 2.
The utility model has adopted low density polyethylene (LDPE) to be made.
Claims (3)
1. borehole sphenoid blanking plug, it is characterized in that comprising two wedges that are used, described two wedges comprise wedge I (1) and wedge II (2), the surfaces externally and internally of the wedge I (1) of stub end at the bottom of borehole is smooth, the inner surface of the wedge II (2) of little head end at the bottom of borehole is smooth, outer surface is provided with inverted gun thorn (4), two wedge angles less than it from the locking angle.
2. borehole sphenoid blanking plug according to claim 1 is characterized in that the inner surface center of wedge I (1) axially offers the payment to a porter slotted eye (3) that the detonator payment to a porter can be passed along borehole.
3. borehole sphenoid blanking plug according to claim 1 and 2 is characterized in that the length of the length of wedge II (2) less than sphenoid I (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220701187 CN203083464U (en) | 2012-12-18 | 2012-12-18 | Shot hole wedge-shaped body blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220701187 CN203083464U (en) | 2012-12-18 | 2012-12-18 | Shot hole wedge-shaped body blocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203083464U true CN203083464U (en) | 2013-07-24 |
Family
ID=48829291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220701187 Expired - Fee Related CN203083464U (en) | 2012-12-18 | 2012-12-18 | Shot hole wedge-shaped body blocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203083464U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759603A (en) * | 2013-12-23 | 2014-04-30 | 山西潞安环保能源开发股份有限公司 | Self-bursting self-latching hydraulic pressure dust proof friction extrusion bore hole blockage device |
| CN104567568A (en) * | 2014-12-19 | 2015-04-29 | 宋俊生 | Blast hole plugging device and method |
| CN110062869A (en) * | 2016-12-07 | 2019-07-26 | 莱斯矿业发展控股有限公司 | Improved blocking plug |
-
2012
- 2012-12-18 CN CN 201220701187 patent/CN203083464U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759603A (en) * | 2013-12-23 | 2014-04-30 | 山西潞安环保能源开发股份有限公司 | Self-bursting self-latching hydraulic pressure dust proof friction extrusion bore hole blockage device |
| CN103759603B (en) * | 2013-12-23 | 2015-11-25 | 山西潞安环保能源开发股份有限公司 | Hydraulic pressure is from spalling Self-closing lock dust-proof friction and Extrusion type perforation plugging device |
| CN104567568A (en) * | 2014-12-19 | 2015-04-29 | 宋俊生 | Blast hole plugging device and method |
| CN104567568B (en) * | 2014-12-19 | 2016-08-24 | 宋俊生 | A kind of big gun hole plugging device and method |
| CN110062869A (en) * | 2016-12-07 | 2019-07-26 | 莱斯矿业发展控股有限公司 | Improved blocking plug |
| CN110062869B (en) * | 2016-12-07 | 2022-05-03 | 莱斯矿业发展控股有限公司 | Improved stopper plug |
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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: 20130724 Termination date: 20131218 |