CN211977727U - Hole plugging device for blast hole of open pit coal mine - Google Patents
Hole plugging device for blast hole of open pit coal mine Download PDFInfo
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- CN211977727U CN211977727U CN202020403263.8U CN202020403263U CN211977727U CN 211977727 U CN211977727 U CN 211977727U CN 202020403263 U CN202020403263 U CN 202020403263U CN 211977727 U CN211977727 U CN 211977727U
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Abstract
The utility model discloses a hole blocking device for an opencast coal mine blast hole, which comprises a vertically arranged hole blocking part and a tightening part, wherein the hole blocking part comprises a cylindrical hole blocking section and a screw column section which is concentrically arranged with the hole blocking section, and the tightening part comprises an installation foundation column and a tightening component which is arranged in the installation foundation column; the utility model has the advantages that: the utility model discloses simple structure, repeatedly usable when the gunpowder explosion produces powerful shock wave, thereby the spacing plectane of the impact that receives at first can rise and drive the tight post in top ejecting, and the top is tight at the inner wall in big gun hole, prevents the blanking hole device departure, and the blasting efficiency of effectual improvement gunpowder practices thrift the gunpowder quantity.
Description
The technical field is as follows:
the utility model relates to an open-air coal mining technology field especially relates to a stifled hole device for open-air coal mine big gun hole.
Background art:
in the open-air coal mining process, down-the-hole blasting is a common process means, the down-the-hole blasting needs to drill blast holes on ore bodies to fill explosives, and the blast holes need to be blocked after the explosives are filled, so that expansion gas generated by the gunpowder blasting generates larger shock waves, thereby generating ore body cracks in a larger range, effectively saving gunpowder and improving the blasting efficiency; most of the existing hole plugging plugs are disposable wooden plugs or resin plugs, but the problems of untight and untight hole plugging exist, and the hole plugging plugs cannot fly out in advance to play a role in improving the blasting efficiency due to the fact that strong shock wave is generated in the moment of gunpowder explosion.
The utility model has the following contents:
an object of the utility model is to provide a stifled hole device for opencut coal mine big gun hole.
The content of the utility model is as follows: the utility model provides a stifled hole device for opencut coal mine big gun hole, its includes the tight portion in stopper hole portion and the top of vertical setting, stopper hole portion include columniform stopper hole section and with the concentric screw column section that sets up of stopper hole section, the tight portion in top includes installation pillar and installs the tight subassembly in top in the installation pillar the vertical decurrent division in top of installation pillar has the installation blind hole, the installation blind hole with the installation pillar is concentric, be provided with the internal thread on the inner wall of installation blind hole, the screw column section with the internal thread spiro union of installation blind hole, the tight subassembly in top includes the slip post of vertical setting the top of slip post along the articulated a plurality of connecting rod that has of circumferencial direction equipartition, the other end of connecting rod is articulated with the tight post in top a plurality of slip through-hole have been opened of the horizontal equipartition of the outer periphery of installation pillar, the tight post in top with slip through-hole sliding connection, the vertical upwards opening in bottom of installation foundation post has central through-hole, the slip post with central through-hole sliding connection, the horizontal fixed mounting in bottom of slip post has spacing plectane, and it still includes the compression spring of vertical setting, compression spring's bottom with the top fixed connection of slip post, compression spring's top with the bottom fixed connection of spiral shell post section, the diameter of plug hole section the diameter of installation foundation post the diameter of spacing plectane reduces in proper order.
Furthermore, the tail end of the jacking column is provided with a bulge.
Furthermore, an annular sealing groove is formed in the outer circumferential surface of the plug hole section, and a sealing ring is installed in the sealing groove.
Furthermore, the top end of the plug hole section is provided with an auxiliary screw hole.
Further, the plug hole portion and the tightening portion are made of resin.
The utility model has the advantages that: the utility model discloses simple structure, repeatedly usable when the gunpowder explosion produces powerful shock wave, thereby the spacing plectane of the impact that receives at first can rise and drive the tight post in top ejecting, and the top is tight at the inner wall in big gun hole, prevents the blanking hole device departure, and the blasting efficiency of effectual improvement gunpowder practices thrift the gunpowder quantity.
Description of the drawings:
fig. 1 is a perspective view of the present invention;
fig. 2 is a top view of the present invention;
FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;
in the figure, a plug hole section 1, a stud section 2, an installation base column 3, an installation blind hole 4, a sliding column 5, a connecting rod 6, a tightening column 7, a limiting circular plate 8, a compression spring 9, a sealing ring 10 and an auxiliary screw hole 11.
The specific implementation mode is as follows:
as shown in fig. 1 to 3, a hole plugging device for a blast hole of an open pit coal mine comprises a vertically arranged hole plugging portion and a tightening portion, wherein the hole plugging portion comprises a cylindrical hole plugging section 1 and a screw column section 2 concentrically arranged with the hole plugging section 1, the tightening portion comprises an installation base column 3 and a tightening component arranged in the installation base column 3, an installation blind hole 4 is vertically and downwardly formed in the top end of the installation base column 3, the installation blind hole 4 is concentric with the installation base column 3, an internal thread is arranged on the inner wall of the installation blind hole 4, the screw column section 2 is in threaded connection with the internal thread of the installation blind hole 4, the tightening component comprises a vertically arranged sliding column 5, a plurality of connecting rods 6 are uniformly hinged to the top end of the sliding column 5 along the circumferential direction, the other end of the connecting rod 6 is hinged to the tightening column 7, a plurality of sliding through holes are horizontally and uniformly formed on the outer circumferential surface of the installation base column 3, the tight post in top 7 with sliding hole sliding connection the vertical upwards opening in bottom of installation foundation 3 has central through-hole, sliding column 5 with central through-hole sliding connection, the horizontal fixed mounting in bottom of sliding column 5 has spacing plectane 8, and it still includes the compression spring 9 of vertical setting, compression spring 9's bottom with sliding column 5's top fixed connection, compression spring 9's top with the bottom fixed connection of spiral shell post section 2, the diameter of plug hole section 1 the diameter of installation foundation 3 the diameter of spacing plectane 8 reduces in proper order.
Furthermore, the tail end of the tightening column 7 is provided with a bulge.
Furthermore, an annular sealing groove is formed in the outer circumferential surface of the plug hole section 1, and a sealing ring 10 is installed in the sealing groove; the top end of the plug hole section 1 is provided with an auxiliary screw hole 11; the plug hole portion and the tightening portion are both made of resin.
The working principle is as follows: the during operation will the utility model discloses fill in the big gun hole, the sealed big gun hole that sealing washer 10 can be better, the shock wave that produces during the gunpowder explosion will spacing plectane 8 jack-up to make the tight post 7 in top stretch out the inner wall in the tight big gun hole in top, prevent the utility model discloses fly out the big gun hole.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a stifled hole device for opencut coal mine big gun hole which characterized in that: it includes the tight portion in stopper hole portion and the top of vertical setting, stopper hole portion include columniform stopper hole section (1) and with the screw column section (2) that stopper hole section (1) set up with one heart, the tight portion in top includes installation foundation pillar (3) and installs the tight subassembly in top in installation foundation pillar (3) the vertical decurrent division in top of installation foundation pillar (3) has installation blind hole (4), installation blind hole (4) with installation foundation pillar (3) are concentric, be provided with the internal thread on the inner wall of installation blind hole (4), screw column section (2) with the internal thread spiro union of installation blind hole (4), the tight subassembly in top includes vertical setting slip post (5) the top of slip post (5) along the articulated a plurality of connecting rod (6) that have of circumferencial direction equipartition, the other end and the tight post in top (7) of connecting rod (6) are articulated, open of the horizontal equipartition of outer periphery of installation foundation pillar (3) has a plurality of slip through-hole, the tight post in top (7) with slip through-hole sliding connection the vertical upwards opening in bottom of installation foundation pillar (3) has central through-hole, slip post (5) with central through-hole sliding connection, the horizontal fixed mounting in bottom of slip post (5) has spacing plectane (8), and it still includes compression spring (9) of vertical setting, the bottom of compression spring (9) with the top fixed connection of slip post (5), the top of compression spring (9) with the bottom fixed connection of spiral shell post section (2), the diameter of stopper hole section (1) the diameter of installation foundation pillar (3) the diameter of spacing plectane (8) reduces in proper order.
2. The hole plugging device for the blasthole of the open pit coal mine according to claim 1, wherein: the tail end of the tightening column (7) is provided with a bulge.
3. The hole plugging device for the blasthole of the open pit coal mine according to claim 1, wherein: an annular sealing groove is formed in the outer circumferential surface of the plug hole section (1), and a sealing ring (10) is installed in the sealing groove.
4. The hole plugging device for the blasthole of the open pit coal mine according to claim 1, wherein: and an auxiliary screw hole (11) is formed at the top end of the plug hole section (1).
5. A plugging device for a blasthole for an open pit coal mine according to claim 1, wherein: the plug hole portion and the tightening portion are both made of resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020403263.8U CN211977727U (en) | 2020-03-26 | 2020-03-26 | Hole plugging device for blast hole of open pit coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020403263.8U CN211977727U (en) | 2020-03-26 | 2020-03-26 | Hole plugging device for blast hole of open pit coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211977727U true CN211977727U (en) | 2020-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020403263.8U Active CN211977727U (en) | 2020-03-26 | 2020-03-26 | Hole plugging device for blast hole of open pit coal mine |
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| CN (1) | CN211977727U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504040A (en) * | 2020-11-30 | 2021-03-16 | 华侨大学 | Rock mass engineering blasting excavation damping device and construction method |
| CN112945041A (en) * | 2021-01-21 | 2021-06-11 | 中南大学 | Blast hole plugging device |
| CN114046701A (en) * | 2021-12-06 | 2022-02-15 | 安徽理工大学 | Deep hole blasting powder feeding device and method |
-
2020
- 2020-03-26 CN CN202020403263.8U patent/CN211977727U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504040A (en) * | 2020-11-30 | 2021-03-16 | 华侨大学 | Rock mass engineering blasting excavation damping device and construction method |
| CN112504040B (en) * | 2020-11-30 | 2023-02-03 | 华侨大学 | Rock mass engineering blasting excavation damping device and construction method |
| CN112945041A (en) * | 2021-01-21 | 2021-06-11 | 中南大学 | Blast hole plugging device |
| CN114046701A (en) * | 2021-12-06 | 2022-02-15 | 安徽理工大学 | Deep hole blasting powder feeding device and method |
| CN114046701B (en) * | 2021-12-06 | 2023-02-21 | 安徽理工大学 | Deep hole blasting powder feeding device and method |
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