JPS607400Y2 - Water jet nozzle for pile driving - Google Patents
Water jet nozzle for pile drivingInfo
- Publication number
- JPS607400Y2 JPS607400Y2 JP13736379U JP13736379U JPS607400Y2 JP S607400 Y2 JPS607400 Y2 JP S607400Y2 JP 13736379 U JP13736379 U JP 13736379U JP 13736379 U JP13736379 U JP 13736379U JP S607400 Y2 JPS607400 Y2 JP S607400Y2
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- pressure
- low
- water
- pressure nozzle
- 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
Links
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Description
【考案の詳細な説明】
本考案は、地中に打込まれる杭の先端に取付けられて、
地盤を掘削するように圧力水を噴斜する杭打用ウォータ
ジェットノズルに関するもので、特に砂地等に適するよ
うにした低圧大容量型のノズルに関する。[Detailed description of the invention] This invention is attached to the tip of a pile that is driven into the ground.
This invention relates to a water jet nozzle for piling that sprays pressurized water as if excavating the ground, and in particular to a low-pressure, large-capacity nozzle that is suitable for sandy soil.
一般にこの種低圧入容量型のノズルにおいては、地中内
に噴斜される大容量の水が再び地上に泥水となって逆流
し、河川や下水道に流入し、河川の汚濁や下水管のつま
り等を発生させるためその処理に困難を来たす不都合が
存した。Generally, with this type of low-injection capacity nozzle, a large volume of water that is injected into the ground flows back to the ground as muddy water and flows into rivers and sewers, causing river pollution and clogging of sewer pipes. This has the disadvantage of making processing difficult.
本考案はか）る不都合を改良するためなされたものであ
って、その泥水の処理を容易にしたノズルを提供するに
ある。The present invention has been made in order to improve the above disadvantages, and the object is to provide a nozzle that facilitates the treatment of muddy water.
これを図示実施例のものについて説明すると１は高圧ノ
ズルを示し、該高圧ノズル１はその先端外壁を円錐面１
ａに形成すると共に、その後端を高圧給水パイプが接続
される筒状接続部１ｂに形成し、その噴口１ｃは、これ
に着脱自在に装着されるノズルチップ１ｄをもって形成
されている。To explain this with respect to the illustrated embodiment, reference numeral 1 indicates a high pressure nozzle, and the high pressure nozzle 1 has a conical surface on its outer wall.
a, and its rear end is formed into a cylindrical connection part 1b to which a high-pressure water supply pipe is connected, and its spout 1c is formed with a nozzle tip 1d which is detachably attached thereto.
２は低圧ノズルを示し、該低圧ノズル２は前記高圧ノズ
ル１を囲繞し、且つ高圧ノズル１の外壁に設けた流通孔
１ｅを有する取付部１ｆを介して高圧ノズル１と一体に
固定され、その後端に低圧給水パイプが接続される筒状
接続部２ａを形成すると共にその先端には前記高圧ノズ
ル１の円錐面１ａとの間に形成される環状円錐路３と、
該環状円錐路３に続く断面を末広ノズルとする噴口４と
が設けられ、更にその環状円錐路３上に位置してチャン
バー５を形成し、該ヤンバー５には外方に開口する吸込
口６を円周上に複数個列設し、その外周には金網７が廻
らされている。Reference numeral 2 indicates a low-pressure nozzle, and the low-pressure nozzle 2 surrounds the high-pressure nozzle 1 and is integrally fixed to the high-pressure nozzle 1 via a mounting portion 1f having a communication hole 1e provided in the outer wall of the high-pressure nozzle 1, and then A cylindrical connection part 2a to which a low-pressure water supply pipe is connected is formed at the end thereof, and an annular conical passage 3 formed at the tip thereof between the conical surface 1a of the high-pressure nozzle 1;
A nozzle 4 whose cross section is a diverging nozzle following the annular conical path 3 is provided, and a chamber 5 is formed on the annular conical path 3, and a suction port 6 opening outward is provided in the yam bar 5. A plurality of wire meshes 7 are arranged in rows on the circumference, and a wire mesh 7 is placed around the outer periphery.
本考案は上述の如く構成されるものであるから高圧ノズ
ル１の噴口１ｃより噴出される圧力水によって低圧ノズ
ル２の環状円錐路３に負圧が形成され、その負圧によっ
て低圧ノズル２内の水は吸引されて低圧ノズル２の噴口
４より大量の低圧水が噴出され、かくて砂質の地盤を掘
削して杭打ちの打込みを容易にするもので、その際噴口
４より噴出されて低圧ノズル２の外周を逆流する泥水は
吸込口６から一部吸込まれて再利用できるため更に上昇
する逆流を少なくするもので又上昇されて地上に流出す
る泥水はこれを貯留してそのこし水を低圧給水パイプに
接続するとき大量の水は再使用され、その際の圧力は、
低圧給水パイプの先端が取付けられる杭の頂部まで揚水
できる圧力で足りるものである。Since the present invention is constructed as described above, a negative pressure is formed in the annular conical path 3 of the low pressure nozzle 2 by the pressure water jetted from the nozzle 1c of the high pressure nozzle 1, and the negative pressure causes the inside of the low pressure nozzle 2 to be The water is sucked and a large amount of low-pressure water is spouted from the spout 4 of the low-pressure nozzle 2, thus excavating sandy ground and making it easier to drive piles. The muddy water flowing backward around the outer periphery of the nozzle 2 can be partially sucked in from the suction port 6 and reused, further reducing the rising backflow, and the muddy water flowing upward and flowing to the ground can be stored and strained. A large amount of water is reused when connecting to a low-pressure water supply pipe, and the pressure is
The pressure that can pump water up to the top of the pile to which the tip of the low-pressure water supply pipe is attached is sufficient.
このように本考案によるときは高圧ノズル１を囲繞して
低圧ノズル２を設け、該低圧ノズル２には高圧ノズル１
の先端の外壁の円錐面１ａとの間に形成される環状円錐
路３と、これに続く断面末広ノズルとする噴口４とを形
成したから大量の低圧水の噴射が可能となり而も低圧ノ
ズル２には環状円錐路３上に位置してチャンバー５を介
して外方に開口する吸込口６を設けたからその噴射水の
一部は自動的に吸引されて再使用が可能となりその逆流
を少なくすることができると共に地上に流出する余剰水
はこれを低圧ノズル用の供給水として利用できるため、
水の回収効率を高めることができ又噴射水の地上戻り泥
水による二次公害を防止すると共に噴射水量を増大でき
る等の効果を有する。In this way, according to the present invention, the low pressure nozzle 2 is provided surrounding the high pressure nozzle 1, and the high pressure nozzle 1 is connected to the low pressure nozzle 2.
Since an annular conical passage 3 is formed between the tip of the nozzle and the conical surface 1a of the outer wall of the nozzle, and a jet nozzle 4 with a wide cross-section is formed following this, it is possible to inject a large amount of low-pressure water, and the low-pressure nozzle 2 is provided with a suction port 6 located on the annular conical path 3 and opening outward through the chamber 5, so that a portion of the jetted water is automatically sucked and can be reused, reducing backflow. At the same time, excess water flowing to the ground can be used as feed water for low-pressure nozzles.
It has the effect of increasing water recovery efficiency, preventing secondary pollution due to muddy water returning to the ground, and increasing the amount of water injected.
図面は本考案の一実施例を示す縦断面図である。
１・・・・・・高圧ノズル、１ａ・・・・・・円錐面、
２・・・・・・低圧ノズル、３・・・・・・環状円錐路
、４・・・・・・噴口、５・・・・・・チャンバー ６
・・・・・・吸込口。The drawing is a longitudinal sectional view showing an embodiment of the present invention. 1... High pressure nozzle, 1a... Conical surface,
2...Low pressure nozzle, 3...Annular conical path, 4...Nozzle port, 5...Chamber 6
...Suction port.
Claims (1)
ズルと、低圧水に連り、且つ前記高圧ノズルを囲繞して
その先端円錐面との間に環状円錐路を形成すると共に、
該環状円錐路に続く噴口を断面末広ノズルとする低圧ノ
ズルとからなり、該低圧ノズルに、環状円錐路上に位置
してチャンバーを介して外方に開口する吸込口を設けた
ことを特徴とする杭打用ウォータジェットノズル。forming an annular conical path between a high-pressure nozzle that connects to high-pressure water and has a conical outer wall at its tip, and a conical surface that connects to low-pressure water and surrounds the high-pressure nozzle;
A low-pressure nozzle having a nozzle with a diverging cross section as a spout following the annular conical path, and the low-pressure nozzle is provided with a suction port located on the annular conical path and opening outward through a chamber. Water jet nozzle for pile driving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13736379U JPS607400Y2 (en) | 1979-10-05 | 1979-10-05 | Water jet nozzle for pile driving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13736379U JPS607400Y2 (en) | 1979-10-05 | 1979-10-05 | Water jet nozzle for pile driving |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5655040U JPS5655040U (en) | 1981-05-13 |
| JPS607400Y2 true JPS607400Y2 (en) | 1985-03-12 |
Family
ID=29368807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13736379U Expired JPS607400Y2 (en) | 1979-10-05 | 1979-10-05 | Water jet nozzle for pile driving |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS607400Y2 (en) |
-
1979
- 1979-10-05 JP JP13736379U patent/JPS607400Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5655040U (en) | 1981-05-13 |
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