CN203795432U - Anti-blockage grouting sprayer - Google Patents
Anti-blockage grouting sprayer Download PDFInfo
- Publication number
- CN203795432U CN203795432U CN201420185110.5U CN201420185110U CN203795432U CN 203795432 U CN203795432 U CN 203795432U CN 201420185110 U CN201420185110 U CN 201420185110U CN 203795432 U CN203795432 U CN 203795432U
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- mouth
- valve
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- pulp
- pipe
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Abstract
The utility model discloses an anti-blockage grouting sprayer. The sprayer comprises nozzle assembly, an inner pipe, an outer pipe, a conical head and a catcher, wherein one end of the catcher is in threaded connection with a grouting pipe while the other end of the catcher is welded with the inner pipe and the outer pipe, which allow the pulp passageway of the spout pipe to be communicated with the pulp passageway of the inner pipe while the air passageway of the spout pipe being communicated with the air passageway between the inner pipe and the outer pipe respectively; the conical head is connected with an outer pipe thread through a thread bushing and is connected with the inner pipe in a sleeving manner at the same time; the pulp mouth of the nozzle assembly adopts a built-in cone-shaped passageway; the pulp mouth is in threaded connection with a pulp mouth base; a cone-shaped hole matched with the pulp mouth cone-shaped passageway is formed in an air mouth; the air mouth is mounted on the pulp mouth in a sleeving manner; the air mouth is in threaded connection with the air mouth base; the pulp mouth base and the air mouth base are welded with the inner pipe and the outer pipe respectively; a valve, being a round rubber plate with the same size as the outer diameter of the air mouth, is arranged; the round rubber plate with the center cut into four valves is fixed on the upper surface of the air mouth and covers a circular air nozzle sharing the same plane as the pulp mouth. According to the utility model, plenty of engineering practices prove that the sprayer is good in anti-blockage property, safe and reliable, good in construction quality, and high in efficiency.
Description
Technical field
The utility model relates to the plant equipment of geotechnical engineering ground processing, particularly relates to the anti-clogging grouting shower nozzle of high pressure jet grouting.
Background technology
In recent years, process in engineering at structure foundation, two tubular type high pressure jet grouting engineering methods, because it has unique function and good effect is widely adopted, the principle of two tubular type high pressure jet groutings is to utilize engineering driller to be drilled to minor diameter grout hole on ground, by grout hole, grout pipe and grouting shower nozzle bottom thereof are placed in to underground projected depth again, in grout pipe and coaxial steel pipe wherein, input low pressure gas and high-pressure water mud respectively on the ground, high-pressure water mud and low pressure gas spray by whitewashing mouth and coaxial ring jet mouth the high-pressure horizontal jet cutting forming respectively, stir stratum, just form pile body or body of wall at deep under ground.
In the time of high pressure jet grouting operation, grout pipe inserts all the time in mud-filled grout hole, by high pressure slurry pump, air compressor machine is to the cement paste of carrying in grout pipe, the pressure of low pressure gas is far longer than the mud fluid column static pressure outside grout pipe, but, at orderly closedown, disconnect grout pipe or defeated slurry, when airline hose booster, the inside and outside rapid autobalance of pressure of whitewashing mouth, but the gas pipeline pressure drop in grout pipe is zero, in grout hole under powerful mud static pressure effect, portable silt particle moment of mud outside pipe crowded enter in ring jet mouth, thereby cause grout pipe obstruction accident, cause significant impact to programming and quality, for this reason, colleague has taked many preventing spray heads to stop up measure both at home and abroad, but effect is all undesirable.
Utility model content
The technical problems to be solved in the utility model is, a kind of special anti-clogging grouting shower nozzle that spray nozzle clogging accident occurs while avoiding two tubular type high pressure jet grouting operations is provided.
The technical scheme adopting is:
Anti-clogging grouting shower nozzle, comprises injector assembly, inner tube, outer tube, conehead, catcher.Catcher connects grout pipe by one end external screw thread, and the inner and outer tubes welding of the other end and same longitudinal axis, makes respectively the gas passage of the slurry passage of grout pipe and the slurry passage of inner tube and grout pipe communicate with the annular gas passage between inner and outer pipes by catcher.Conehead is that axle, the other end are that cone and the thread bush of 60 ° welds by one end, and conehead is connected with external pipe thread by thread bush, and axle is socketed also and seals with axle sealing ring with inner tube simultaneously.Described injector assembly forms by starching mouth, slurry mouth seat, valve, valve seat, flap valve, gland.What slurry mouth was established tapered channel in being penetrates slurry mouth, and slurry mouth is connected with slurry mouth seat coaxial threaded, and seals to starch mouth sealing ring, in valve, establish and the bellmouth of starching mouth conical external circle and matching, valve and slurry muzzle dress, valve is connected with valve seat coaxial threaded, and seals with valve sealing ring.Slurry mouth seat and valve seat are laid on the same axis intersecting vertically with inner tube longitudinal axis, and weld with inner tube and outer tube respectively.Flap valve is the circular film identical with valve outside dimension, and the joint-cutting that circular film is crossed the center of circle is divided into the quartering, and its joint-cutting two ends are provided with the small sircle hole into increasing the flexibility of flap valve open and close.The open-work that described gland is provided with on flap valve, small sircle hole distribution diameter is identical, outer being arranged with of gland is slightly larger than valve external diameter to increase the flange of rigidity, gland passes through its flange spiral-lock on valve, and with screw, flap valve is fastened on to plane on valve, flap valve is covered and starch on the ring jet mouth of the same plane of mouth.
Above-mentioned anti-clogging grouting shower nozzle is provided with two groups of injector assemblies, and its horizontal-jet axis angle is 180 ° or 120 °, and at least the stagger distance of 1 times of valve seat external diameter of the two axis.
The utility model proves through a large amount of engineering practices, and this shower nozzle anti-clogging performance is good, safe and reliable, and construction quality is good, and efficiency is high.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is that the A of Fig. 2 is to view.
Detailed description of the invention
Anti-clogging grouting shower nozzle, comprises injector assembly 4, inner tube 5, outer tube 6, conehead 9, catcher 2.Catcher 2 connects grout pipe 1 by one end external screw thread, inner tube 5 and the outer tube 6 of the other end and same longitudinal axis weld, and make respectively the gas passage 13 of the slurry passage 12 of grout pipe and the slurry passage 3 of inner tube and grout pipe communicate with the annular gas passage 7 between inner and outer pipes by taking over 2.Conehead 9 is that axle 8, the other end are that the cone 11 of 60 ° is welded with thread bush 22 by one end, and conehead 9 is threaded with outer tube 6 by thread bush 22, and axle 8 and inner tube 5 are socketed and seal with axle sealing ring 10 simultaneously.Described injector assembly 4 is made up of slurry mouth 19, slurry mouth seat 21, valve 15, valve seat 14, flap valve 18, gland 20.What slurry mouth 19 was established tapered channel in being penetrates slurry mouth, slurry mouth 19 is connected with slurry mouth seat 21 coaxial threaded, and seal with slurry mouth sealing ring 27, in valve 15, establish and the bellmouth of starching mouth conical external circle and matching, valve 15 is set with slurry mouth 19, between valve 15 and slurry mouth 19, form ring jet passage 16, valve 15 is connected with valve seat 14 coaxial threaded, and seals with valve sealing ring 26.Slurry mouth seat 21 and valve seat 14 are laid in inner tube 5 vertical
On the same axis of intersect vertical axis, and weld with inner tube 5 and outer tube 6 respectively.Suppressing the flap valve 18 forming taking polyurethane rubber high-strength, that resilience is good is the circular film identical with valve outside dimension, the joint-cutting 23 that circular film is crossed the center of circle is divided into the quartering, and its joint-cutting 23 two ends are provided with the small sircle hole 25 into increasing the flexibility of flap valve open and close.Described gland 20 be provided with flap valve on the open-work of small sircle hole 25 distribution diameter same sizes, outer being arranged with of gland is slightly larger than valve 15 external diameters to increase the flange of rigidity, gland 20 passes through its flange spiral-lock on valve 15, and with screw 17, flap valve 18 is fastened on to plane on valve 15, flap valve covered and starch on the ring jet mouth 24 of the same plane of mouth, forming anti-clogging grouting shower nozzle.Anti-clogging grouting shower nozzle is provided with two groups of injector assemblies 4, and its horizontal-jet axis angle is 180 ° or 120 °, and at least the stagger distance of 1 times of valve seat external diameter of the two axis, to ensure to starch the unimpeded of passage.
Operating principle
High-pressure injection is filled with before pipe operation injection, flap valve 18 is according to self elastic force capping ring jet mouth 24, when jet grouting, water under high pressure mud and low pressure gas spray from slurry mouth and ring jet passage 16 levels respectively through slurry passage 3 and the annular gas passage 7 of shower nozzle from the slurry passage 12 of grout pipe and the gas passage 13 of grout pipe respectively, and flap valve 18 is opened by air-flow turnup simultaneously; And at ground orderly closedown and in the time disconnecting grout pipe or accident booster, flap valve 18 relies on screen resilience that ring jet mouth 24 is sealed, and compressed by the mud outside shower nozzle, thereby silt particle is crowded into, the pipeline jam accident of nozzle is avoided.
Claims (2)
1. anti-clogging grouting shower nozzle, comprise injector assembly (4), inner tube (5), outer tube (6), conehead (9), catcher (2), catcher (2) connects grout pipe (1) by one end external screw thread, the inner tube (5) of the other end and same longitudinal axis and outer tube (6) welding, make respectively the gas passage (13) of the slurry passage (12) of grout pipe and the slurry passage (3) of inner tube and grout pipe communicate with the annular gas passage (7) between inner and outer pipes by catcher (2), conehead (9) is axle (8) by one end, the other end is the cone (11) and thread bush (22) welding of 60 °, conehead (9) is threaded with outer tube (6) by thread bush (22), axle (8) is socketed and seals with axle sealing ring (10) with inner tube (5) simultaneously, it is characterized in that described injector assembly (4) is by slurry mouth (19), slurry mouth seat (21), valve (15), valve seat (14), flap valve (18), gland (20) composition, what slurry mouth (19) was established tapered channel in being penetrates slurry mouth, slurry mouth (19) is connected with slurry mouth seat (21) coaxial threaded, and with slurry mouth sealing ring (27) sealing, in valve (15), establish and the bellmouth of starching mouth conical external circle and matching, valve (15) and slurry mouth (19) suit, between valve (15) and slurry mouth (19), form ring jet passage (16), valve (15) is connected with valve seat (14) coaxial threaded, and seal with valve sealing ring (26), slurry mouth seat (21) and valve seat (14) are laid on the same axis intersecting vertically with inner tube (5) longitudinal axis, and weld with inner tube (5) and outer tube (6) respectively, flap valve (18) is the circular film identical with valve outside dimension, the joint-cutting (23) that circular film is crossed the center of circle is divided into the quartering, its joint-cutting (23) two ends are provided with small sircle hole (25), described gland (20) be provided with flap valve on the open-work of small sircle hole (25) distribution diameter same size, the outer flange that is slightly larger than valve (15) external diameter that is arranged with of gland, gland (20) passes through its flange spiral-lock on valve (15), and with screw (17), flap valve (18) is fastened on to the upper plane of valve (15), flap valve (18) is covered and starch on the ring jet mouth (24) of the same plane of mouth.
2. anti-clogging grouting shower nozzle according to claim 1, it is characterized in that described anti-clogging grouting shower nozzle is provided with two groups of injector assemblies (4), its horizontal-jet axis angle is 180 ° or 120 °, and at least the stagger distance of 1 times of valve seat external diameter of the two axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420185110.5U CN203795432U (en) | 2014-04-17 | 2014-04-17 | Anti-blockage grouting sprayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420185110.5U CN203795432U (en) | 2014-04-17 | 2014-04-17 | Anti-blockage grouting sprayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203795432U true CN203795432U (en) | 2014-08-27 |
Family
ID=51377661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420185110.5U Expired - Fee Related CN203795432U (en) | 2014-04-17 | 2014-04-17 | Anti-blockage grouting sprayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203795432U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967014A (en) * | 2014-04-17 | 2014-08-06 | 沈阳农业大学 | Anti-blocking grouting nozzle |
| CN110454185A (en) * | 2019-08-28 | 2019-11-15 | 中铁工程装备集团有限公司 | A kind of high pressure water auxiliary rock system and construction method for rock tunnel(ling) machine |
-
2014
- 2014-04-17 CN CN201420185110.5U patent/CN203795432U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967014A (en) * | 2014-04-17 | 2014-08-06 | 沈阳农业大学 | Anti-blocking grouting nozzle |
| CN110454185A (en) * | 2019-08-28 | 2019-11-15 | 中铁工程装备集团有限公司 | A kind of high pressure water auxiliary rock system and construction method for rock tunnel(ling) machine |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20170417 |