CN201687507U - Hydrostatic coal wall water injection hole packer - Google Patents
Hydrostatic coal wall water injection hole packer Download PDFInfo
- Publication number
- CN201687507U CN201687507U CN2010202219152U CN201020221915U CN201687507U CN 201687507 U CN201687507 U CN 201687507U CN 2010202219152 U CN2010202219152 U CN 2010202219152U CN 201020221915 U CN201020221915 U CN 201020221915U CN 201687507 U CN201687507 U CN 201687507U
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- water
- connecting rod
- pad
- water inlet
- inlet pipe
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Abstract
The utility model relates to a hydrostatic coal wall water injection hole packer, which comprises a water outlet pipe, a one-way valve installed at the front end of a water inlet pipe and an expansion pipe sleeved on the outer side of the water inlet pipe. The expansion pipe is a closed elastic annular expansion pipe, the annular expansion pipe is sleeved on the outer side of the water inlet pipe and communicated with the water inlet pipe through the water charging one-way valve, at least one water drainage hole is arranged at the rear end of the annular expansion pipe, a washer is arranged on the water drainage hole, a connecting rod is fixed at the center of the washer along a direction perpendicular to the washer, the area of the washer is larger than that of the water drainage hole, the diameter of the connecting rod is smaller than the bore diameter of the water drainge hole, and the connecting rod penetrates through the water drainge hole to extend out of the annular expansion pipe. In the hole packer, as the one-way valve is arranged between the annular expansion pipe and the water inlet pipe, dynamic pressure water injection can be realized, and the hole packer has simple structure, is easy to produce and manufacture, has excellent use effect, and is extremely favorable for popularization and construction in the mine extraction field.
Description
One, technical field:
The utility model relates to rib or coal-bed flooding hole sealing technology in the colliery, particularly relates to a kind of hydraulic coal wall water injection hole packer.
Two, background technology:
High speed development along with coal industry and Coal Production mechanization, dust hazard problem in the Coal Production is still severe, and the sick incidence of disease of coal worker's pneumoconiosis is higher, and coal-dust explosion happens occasionally, gas is outstanding to be a kind of serious natural calamity under the coal mine, seriously restricts the safety in production in colliery.To rib or coal-bed flooding is a kind of active and effective measure that prevents the stope coal dust in the coal mining manufacturing process.The tradition short-cut method is to adopt the cement mortar sealing of hole, and the sealing of hole section bottom that is about to water injection pipe insertion boring is blocked then with the cement sealing of hole with timber wedge or cotton yarn.But treat cement stone slurry solidify after just water filling.With the cement mortar sealing of hole water filling length that expends time in, waste is big, many, the inconvenient operation of consume material, can not be used for the dynamic pressure water filling.The main sealing of hole water filling device that adopts has the hydraulic expansion type hole packer on the present domestic colliery.These water fillings and sealing of hole pressure are predefined by the overflow valve that is located at the expansion tube front end, after the water filling hole packer inserts eyelet, even predefined pressure does not meet the eyelet specific requirement and can not adjust immediately yet, reset after the water filling hole packer must being extracted out from eyelet, waste time and energy.The water inlet pipe of water filling is communicated with the sealing of hole expansion tube in addition and chamber pressure is identical, it as the patent No. 200820099473.1 segmented water filling hole packer, outlet pipe front end one way valve rubber water cavity before opening is strutted, in case but the one way valve water flowing of outlet pipe front end then robber cement cavity pressure reduce that cause may be poorly sealed; Pressure easily fluctuates with pressure source during sealing of hole, cause expansion tube often to clash into hole wall and cause the eyelet distortion, the feed pipe external diameter is less than the infusion hole bore dia in addition, the immersion that eyelet the is subjected to water during water filling hole of very easily collapsing, it is multiplexing to cause expansion tube to be difficult to withdraw from recovery, must keep higher hydraulic pressure just can keep expansion tube always and be opened, only be fit to static water filling.
Three, utility model content:
The utility model is at defective that exists in the prior art and deficiency, and a kind of mechanical type hydraulic coal wall water injection hole packer is provided.
Technical scheme:
A kind of hydraulic coal wall water injection hole packer, comprise outlet pipe, be installed in the one way valve of water inlet pipe front end and be set in the expansion tube in the water inlet pipe outside, described expansion tube is the elastic ring expansion tube of sealing, and this loop expansion pipe is set in the water inlet pipe outside and is communicated with by the water-filling one way valve with water inlet pipe; At least be provided with a drain hole in described loop expansion pipe rear end and on this drain hole, be provided with pad, be fixed with a connecting rod in the pad center along vertical pad direction, the connecting rod diameter is less than the drain hole aperture greater than the drain hole area for the pad area, and connecting rod stretches out the loop expansion pipe outside after passing drain hole.
Be provided with two above drain holes in described loop expansion pipe rear end, each drain hole is around uniform arrangement, and on each drain hole medial surface, be respectively equipped with pad, be fixed with a connecting rod in the pad center along vertical pad direction, the connecting rod diameter is less than the drain hole aperture greater than the drain hole area for the pad area, and connecting rod stretches out the loop expansion pipe outside after passing drain hole
Be set with one by pressure ring at the water inlet pipe back segment, described connecting rod is fixed in by on the pressure ring end face.
Be provided with fixedly ear and fixedly be provided with jack on the ear on water inlet pipe back segment lateral wall, connecting rod is plugged in again in the described fixedly ear jack after passing drain hole.
Described water-filling one way valve is the duckbill one way valve, perhaps is spring non-return valve.
Described water-filling one way valve adopts the gasket type one way valve, promptly covers a pad on loop expansion pipe inboard and water inlet pipe communication passage mouth, and this pad one side and loop expansion pipe inside wall are flexible coupling.
Described pad is a flexible gasket, perhaps is that rigid pad one end is hinged by bearing pin and loop expansion pipe inside wall.
On the water inlet pipe sidewall between annular preform and the loop expansion pipe, be set with rubber dish spring.
Described connecting rod end is provided with pressing tablet, is set with spring on the connecting rod between this pressing tablet and the loop expansion pipe.
The beneficial effects of the utility model:
1, the utility model hydraulic coal wall water injection hole packer, between loop expansion pipe and water inlet pipe, adopt one way valve, can realize the dynamic pressure water-filling, owing to play the Expansion sealing effect during the interior quilt of the loop expansion pipe water-filling first time, so the volume of water inlet pipe pressure size loop expansion pipe does not change afterwards, up to pushing the connecting rod draining.
2, the utility model hydraulic coal wall water injection hole packer is simple in structure, manufactures easily, and result of use is very good, is beneficial to very much in the field of mining promotion and implementation.
Four, description of drawings:
Fig. 1 is one of the utility model hydraulic coal wall water injection hole packer cross-sectional view;
Fig. 2 is the loop expansion pipe water-filling state cross-sectional view of Fig. 1;
Fig. 3 be Fig. 1 go out the water state cross-sectional view;
Fig. 4 is the I portion structure for amplifying schematic diagram of Fig. 1;
Fig. 5 is the C-C cross-sectional view of Fig. 4;
Fig. 6 is one of the utility model hydraulic coal wall water injection hole packer cross-sectional view;
Fig. 7 is two of the utility model hydraulic coal wall water injection hole packer cross-sectional view;
Fig. 8 is three of the utility model hydraulic coal wall water injection hole packer cross-sectional view.
Among the figure, label 1 is an outlet pipe, and 2 is one way valve, 3 is loop expansion pipe, and 4 is the water-filling one way valve, and 5 is pad, 6 is connecting rod, and 7 is annular preform, and 8 is the pressure plug of one way valve, 9 is one-way valve spring, and 10 is delivery port, and 11 is gasket type water-filling one way valve, 12 is rubber dish spring, and 13 for being set in the spring on the connecting rod, and 14 is the duckbill delivery port, 15 is the flaring end face, and 16 are the gradually closing end face.
Five, the specific embodiment:
Embodiment one: referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, a kind of hydraulic coal wall water injection hole packer, comprise outlet pipe 1, be installed in the one way valve 2 of water inlet pipe front end and be set in the expansion tube in the water inlet pipe outside, wherein expansion tube is the elastic ring expansion tube 3 of sealing, and this loop expansion pipe 3 is set in water inlet pipe 1 outside and is communicated with by water-filling one way valve 4 with water inlet pipe; Be provided with two above drain holes in described loop expansion pipe 3 rear ends, and on each drain hole, be provided with pad 5, each drain hole is around uniform arrangement, be fixed with a connecting rod 6 in pad 5 centers along vertical pad direction, connecting rod 6 diameters are less than the drain hole aperture greater than the drain hole area for pad 5 areas, and connecting rod 6 stretches out the loop expansion pipe outside after passing drain hole.Be set with one by pressure ring 7 at the water inlet pipe back segment, described each connecting rod 6 all is fixed in by on pressure ring 7 end faces.
In the present embodiment, the water-filling one way valve is the duckbill one way valve.
The process of from Fig. 1, Fig. 2, Fig. 3, intaking as can be seen, show among Fig. 2 that water inlet pipe 1 is at the water inlet initial stage, not not opening of one way valve 2, water-filling one way valve 4 at first is opened under hydraulic pressure, this moment in loop expansion pipe water-filling, after treating that the loop expansion pipe internal pressure acquires a certain degree, hydraulic pressure forces one way valve 2 to open (as Fig. 3).Wherein the pad on the loop expansion pipe back segment gutter during at water-filling because hydraulic action seals and is pressed on the drain hole always, finish after the water-filling, make it draining by pushing compressing tablet 7 (annular).Can realize the dynamic pressure water-filling by water-filling one way valve 4 in the present embodiment, owing to play the Expansion sealing effect during the interior quilt of the loop expansion pipe water-filling first time, so the volume of water inlet pipe pressure size loop expansion pipe does not change afterwards, up to pushing connecting rod 6 drainings.
Embodiment two: accompanying drawing is not drawn, meaning and embodiment one are basic identical, something in common does not repeat, and different is: be provided with fixedly ear and fixedly be provided with jack on the ear on water inlet pipe back segment lateral wall, connecting rod is plugged in again in the described fixedly ear jack after passing drain hole.
Embodiment three: referring to Fig. 6, number identical with embodiment one, meaning and embodiment one are basic identical, something in common does not repeat, different is: described water-filling one way valve adopts gasket type one way valve 11, promptly cover a flexible gasket on loop expansion pipe inboard and water inlet pipe communication passage mouth, this pad one side and loop expansion pipe inside wall are flexible coupling.
Embodiment four: accompanying drawing is not drawn, and meaning and embodiment three are basic identical, and something in common does not repeat, and different is: described pad is that rigid pad one end is hinged by bearing pin and loop expansion pipe inside wall.
Embodiment five: referring to Fig. 7, number identically with embodiment one, meaning and embodiment one are basic identical, and something in common does not repeat, and different is: be set with rubber dish spring 12 on the water inlet pipe sidewall between annular preform and the loop expansion pipe.
Embodiment six: referring to Fig. 8, number identically with embodiment one, meaning and embodiment one are basic identical, and something in common does not repeat, different is: described connecting rod end is provided with pressing tablet 7 (other than ring type), is set with spring 13 on the connecting rod between this pressing tablet and the loop expansion pipe.
Embodiment seven: accompanying drawing is not drawn, and meaning and embodiment three are basic identical, and something in common does not repeat, and different is: the water-filling one way valve is a spring non-return valve, and the coefficient of elasticity of this spring non-return valve is less than the one way valve of delivery port.
Claims (9)
1. hydraulic coal wall water injection hole packer, comprise outlet pipe, be installed in the one way valve of water inlet pipe front end and be set in the expansion tube in the water inlet pipe outside, it is characterized in that: described expansion tube is the elastic ring expansion tube of sealing, and this loop expansion pipe is set in the water inlet pipe outside and is communicated with by the water-filling one way valve with water inlet pipe; At least be provided with a drain hole in described loop expansion pipe rear end and on this drain hole, be provided with pad, be fixed with a connecting rod in the pad center along vertical pad direction, the connecting rod diameter is less than the drain hole aperture greater than the drain hole area for the pad area, and connecting rod stretches out the loop expansion pipe outside after passing drain hole.
2. hydraulic coal wall water injection hole packer according to claim 1, it is characterized in that: be provided with two above drain holes in described loop expansion pipe rear end, each drain hole is around uniform arrangement, and on each drain hole medial surface, be respectively equipped with pad, be fixed with a connecting rod in the pad center along vertical pad direction, the connecting rod diameter is less than the drain hole aperture greater than the drain hole area for the pad area, and connecting rod stretches out the loop expansion pipe outside after passing drain hole.
3. according to claim 1 or 2 each described hydraulic coal wall water injection hole packers, it is characterized in that: be set with one by pressure ring at the water inlet pipe back segment, described connecting rod is fixed in by on the pressure ring end face.
4. according to claim 1 or 2 each described hydraulic coal wall water injection hole packers, it is characterized in that: be provided with fixedly ear and fixedly be provided with jack on the ear on water inlet pipe back segment lateral wall, connecting rod is plugged in again in the described fixedly ear jack after passing drain hole.
5. hydraulic coal wall water injection hole packer according to claim 1 is characterized in that: described water-filling one way valve is the duckbill one way valve, perhaps is spring non-return valve.
6. hydraulic coal wall water injection hole packer according to claim 1, it is characterized in that: described water-filling one way valve adopts the gasket type one way valve, promptly cover a pad on loop expansion pipe inboard and water inlet pipe communication passage mouth, this pad one side and loop expansion pipe inside wall are flexible coupling.
7. hydraulic coal wall water injection hole packer according to claim 6 is characterized in that: described pad is a flexible gasket, perhaps is that rigid pad one end is hinged by bearing pin and loop expansion pipe inside wall.
8. hydraulic coal wall water injection hole packer according to claim 3 is characterized in that: be set with rubber dish spring on the water inlet pipe sidewall between annular preform and the loop expansion pipe.
9. hydraulic coal wall water injection hole packer according to claim 4 is characterized in that: described connecting rod end is provided with pressing tablet, is set with spring on the connecting rod between this pressing tablet and the loop expansion pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202219152U CN201687507U (en) | 2010-06-11 | 2010-06-11 | Hydrostatic coal wall water injection hole packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202219152U CN201687507U (en) | 2010-06-11 | 2010-06-11 | Hydrostatic coal wall water injection hole packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201687507U true CN201687507U (en) | 2010-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202219152U Expired - Fee Related CN201687507U (en) | 2010-06-11 | 2010-06-11 | Hydrostatic coal wall water injection hole packer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864983A (en) * | 2010-06-11 | 2010-10-20 | 河南理工大学 | Hydraulic coal wall water injection hole packer |
| CN102966368A (en) * | 2012-11-24 | 2013-03-13 | 周春雷 | Hole packer for coal seam crushing |
| WO2015072833A1 (en) * | 2013-11-15 | 2015-05-21 | Aguilar Vera Oscar Octavio | Tube for dewatering mining rock |
| CN108955989A (en) * | 2018-05-23 | 2018-12-07 | 山东科技大学 | For determining the test device and test method of water filling cracks in coal seam internal water pressure |
| CN109025840A (en) * | 2018-08-03 | 2018-12-18 | 邹城兖矿泰德工贸有限公司 | Strong extension bar |
-
2010
- 2010-06-11 CN CN2010202219152U patent/CN201687507U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864983A (en) * | 2010-06-11 | 2010-10-20 | 河南理工大学 | Hydraulic coal wall water injection hole packer |
| CN102966368A (en) * | 2012-11-24 | 2013-03-13 | 周春雷 | Hole packer for coal seam crushing |
| WO2015072833A1 (en) * | 2013-11-15 | 2015-05-21 | Aguilar Vera Oscar Octavio | Tube for dewatering mining rock |
| CN108955989A (en) * | 2018-05-23 | 2018-12-07 | 山东科技大学 | For determining the test device and test method of water filling cracks in coal seam internal water pressure |
| CN108955989B (en) * | 2018-05-23 | 2019-07-05 | 山东科技大学 | For determining the test device and test method of water filling cracks in coal seam internal water pressure |
| CN109025840A (en) * | 2018-08-03 | 2018-12-18 | 邹城兖矿泰德工贸有限公司 | Strong extension bar |
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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: 20101229 Termination date: 20130611 |