CN203626719U - Mechanical gas extraction plugging device - Google Patents
Mechanical gas extraction plugging device Download PDFInfo
- Publication number
- CN203626719U CN203626719U CN201320743208.3U CN201320743208U CN203626719U CN 203626719 U CN203626719 U CN 203626719U CN 201320743208 U CN201320743208 U CN 201320743208U CN 203626719 U CN203626719 U CN 203626719U
- Authority
- CN
- China
- Prior art keywords
- ball bearing
- drainage tube
- thrust ball
- rubber spring
- screw
- 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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- Jet Pumps And Other Pumps (AREA)
Abstract
The utility model discloses a mechanical gas extraction plugging device which comprises an extraction tube, a screw rod, a nut, a thrust ball bearing, an ejector sleeve, a rubber spring, a baffle and a plugging head. The screw rod is welded at one end of the extraction tube, the screw rod is provided with the nut, the ejector tube and the extraction tube are in sliding fit, the thrust ball bearing is mounted at one end of the ejector tube, and a big disk is welded at the other end of the thrust ball bearing. The baffle and the plugging head are welded on the extraction tube, an oblique hole is formed in the end, close to the plugging head, of the extraction tube, and the rubber spring is arranged on the extraction tube in a sleeved mode and is attached to the baffle. The nut is screwed forwards, the ejector sleeve is pushed through the thrust ball bearing, the rubber spring is compressed, radial expansion is achieved, and an extraction hole is plugged.
Description
Technical field
The utility model relates to a kind of mechanical type gas pumping plugging device.
Background technology
Due to the safety of gas threat coal mining, gas in coal mine down-hole tunnel wall pump drainage coal seam becomes one important step before coal mining, coal seam is in underground high-voltage state, gas is conventionally closed in inside, coal seam and is not easy to discharge, but in recovery process, in the time changing coal seam stress balance, can there is outstanding accident, so be also accompanied by gas exhaust operation in recovery process.The mode of traditional drawing-off gas is to hole on rib, a releasing pipe of insertion in boring, and releasing pipe is distributed with aspirating hole on inner one end.Releasing pipe need to be sealed fixing in boring, the mode of taking is: at releasing pipe middle part or be provided with the material of two kinds of different materials near boring collar extension one side, in the time that releasing pipe is placed into appropriate location, bi-material is mixed to produce and expand, thereby make to form between releasing pipe and drill hole inner wall one deck supporting layer, after layer to be supported solidifies, at supporting layer outside sprinkling irrigation cement, after theing cement solidifies, form sealant, then exhaust column is bled, the gas of rib inner side is released.There is the problem of inefficiency and support strength deficiency in above traditional approach, bi-material is by mixed expanded formation supporting layer, need certain setting time, and this expansion does not in axial direction suffer restraints, there will be shutoff imprecision problem, thereby easy spillage in the time of gunning concrete, wastes concrete and easily causes aspirating hole shutoff problem, does not reach the effect of bleeding.And traditional mode, need to consume a large amount of mixed materials and could form supporting layer, has increased cost of winning.
Utility model content
The utility model, for solving the deficiencies in the prior art, provides a kind of mechanical type gas pumping plugging device.
The technical solution adopted in the utility model is: a kind of mechanical type gas pumping plugging device, comprises drainage tube 1, screw mandrel 2, screw 3, thrust ball bearing 4, ejector sleeve 5, rubber spring 6, baffle plate 7 and block head 8; One end welding screw mandrel 2 of drainage tube 1, screw 3 is set on screw mandrel 2, ejector sleeve 5 is slidably matched with drainage tube 1, one end installed thrust ball bearing 4, other end welding big disk, baffle plate 7 and block head 8 are welded on drainage tube 1, and drainage tube 1 is opened inclined hole near one end of block head 8, rubber spring 6 is enclosed within on drainage tube 1, is pasting baffle plate 7; Screw 3 is screwed into forward, promotes ejector sleeve 5 by thrust ball bearing 4, and rubber spring 6 is compressed, and expanded radially, shuts drainage holes.
The beneficial effects of the utility model are: the utility model has designed a kind of mechanical type gas pumping plugging device, reasonable in design.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Description of reference numerals:
1---drainage tube, 2---screw mandrel, 3---screw, 4---thrust ball bearing, 5---ejector sleeve, 6
---rubber spring, 7---baffle plate, 8---block head
The specific embodiment
As shown in Figure 1, the utility model discloses a kind of mechanical type gas pumping plugging device, comprise drainage tube 1, screw mandrel 2, screw 3, thrust ball bearing 4, ejector sleeve 5, rubber spring 6, baffle plate 7 and block head 8; One end welding screw mandrel 2 of drainage tube 1, screw 3 is set on screw mandrel 2, ejector sleeve 5 is slidably matched with drainage tube 1, one end installed thrust ball bearing 4, other end welding big disk, baffle plate 7 and block head 8 are welded on drainage tube 1, and drainage tube 1 is opened inclined hole near one end of block head 8, rubber spring 6 is enclosed within on drainage tube 1, is pasting baffle plate 7; Screw 3 is screwed into forward, promotes ejector sleeve 5 by thrust ball bearing 4, and rubber spring 6 is compressed, and expanded radially, shuts drainage holes.
The above; only embodiment of the present utility model; not the utility model is imposed any restrictions, every any simple modification of above embodiment being done according to the utility model technical spirit, change and equivalent structure change, and all still belong in the protection domain of technical solutions of the utility model.
Claims (1)
1. a mechanical type gas pumping plugging device, is characterized in that: comprise drainage tube (1), screw mandrel (2), screw (3), thrust ball bearing (4), ejector sleeve (5), rubber spring (6), baffle plate (7) and block head (8); One end welding screw mandrel (2) of drainage tube (1), screw (3) is set on screw mandrel (2), ejector sleeve (5) is slidably matched with drainage tube (1), one end installed thrust ball bearing (4), other end welding big disk, it is upper that baffle plate (7) and block head (8) are welded on drainage tube (1), and drainage tube (1) is opened inclined hole near one end of block head (8), it is upper that rubber spring (6) is enclosed within drainage tube (1), pasting baffle plate (7); Screw (3) is screwed into forward, promotes ejector sleeve (5) by thrust ball bearing (4), and by rubber spring (6) compression, expanded radially, shuts drainage holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743208.3U CN203626719U (en) | 2013-11-20 | 2013-11-20 | Mechanical gas extraction plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743208.3U CN203626719U (en) | 2013-11-20 | 2013-11-20 | Mechanical gas extraction plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203626719U true CN203626719U (en) | 2014-06-04 |
Family
ID=50813208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320743208.3U Expired - Fee Related CN203626719U (en) | 2013-11-20 | 2013-11-20 | Mechanical gas extraction plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203626719U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607314A (en) * | 2022-03-30 | 2022-06-10 | 煤炭科学技术研究院有限公司 | Mechanical hole packer for gas extraction drilling and use method of mechanical hole packer |
-
2013
- 2013-11-20 CN CN201320743208.3U patent/CN203626719U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607314A (en) * | 2022-03-30 | 2022-06-10 | 煤炭科学技术研究院有限公司 | Mechanical hole packer for gas extraction drilling and use method of mechanical hole packer |
| CN114607314B (en) * | 2022-03-30 | 2023-10-17 | 煤炭科学技术研究院有限公司 | Mechanical hole packer for gas extraction drilling and use method thereof |
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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: 20140604 Termination date: 20141120 |
|
| EXPY | Termination of patent right or utility model |