JP6755469B2 - Retaining tube joint disconnection prevention device - Google Patents

Retaining tube joint disconnection prevention device Download PDF

Info

Publication number
JP6755469B2
JP6755469B2 JP2017089298A JP2017089298A JP6755469B2 JP 6755469 B2 JP6755469 B2 JP 6755469B2 JP 2017089298 A JP2017089298 A JP 2017089298A JP 2017089298 A JP2017089298 A JP 2017089298A JP 6755469 B2 JP6755469 B2 JP 6755469B2
Authority
JP
Japan
Prior art keywords
clasp
stopper
hole
retaining
prevention device
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
Application number
JP2017089298A
Other languages
Japanese (ja)
Other versions
JP2017201124A (en
Inventor
信也 馬場
信也 馬場
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of JP2017201124A publication Critical patent/JP2017201124A/en
Application granted granted Critical
Publication of JP6755469B2 publication Critical patent/JP6755469B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)

Description

本発明は、保孔管の共抜け防止器具に係り、より詳しくは、保孔管挿入後に孔壁を保持しているケーシングを抜き取る際ケーシングと共に保孔管が抜けることを防止する保孔管の共抜け防止器具に関する。 The present invention relates to a co-removal prevention device for a hole-retaining tube, and more specifically, a hole-retaining tube that prevents the hole-retaining tube from coming off together with the casing when the casing holding the hole wall is pulled out after the hole-retaining tube is inserted. Regarding the co-slip prevention device.

集水ボーリング工事は、横孔を掘削して横孔内に集水管を挿入し地下水を恒常的に排水して地中の間隙水圧を低下させ、地すべりを防止することを目的としている。
集水ボーリング工事では、以下の問題がある。
(1)掘削された横孔に集水管が挿入できない。
(2)集水管の腐食による集水不能。
(3)集水管の目詰まりによる集水不能。
このうち、掘削された横孔に集水管が挿入できないケースとしては、図１に示すように、目的深度までの掘削は完了しても，ケーシングの前方が崩壊して集水管が挿入できない場合、あるいは、図２に示すように、集水管は挿入できたがケーシングと集水管が共抜けして集水管が横孔内に留まらない場合がある。 The purpose of the water collection boring work is to excavate a horizontal hole and insert a water collecting pipe into the horizontal hole to constantly drain groundwater to reduce the pore water pressure in the ground and prevent landslides.
There are the following problems in the water collection boring work.
(1) The water collecting pipe cannot be inserted into the excavated horizontal hole.
(2) Water cannot be collected due to corrosion of the water collection pipe.
(3) Water cannot be collected due to clogging of the water collection pipe.
Of these, as a case where the water collecting pipe cannot be inserted into the excavated lateral hole, as shown in FIG. 1, when the front of the casing collapses and the water collecting pipe cannot be inserted even after the excavation to the target depth is completed. Alternatively, as shown in FIG. 2, although the water collecting pipe can be inserted, the casing and the water collecting pipe may come off together and the water collecting pipe may not stay in the lateral hole.

多量の地下水が湧き出している場合は、孔壁崩壊が発生してケーシング内に土砂が流入してケーシング抜き取り時に集水管が共に抜けてしまうことが起こりやすい。
共抜けを防止する方法として、図３に示す集水管ストッパーを集水管の先端に取り付ける方法があるが、この方法では、集水管が孔崩壊でケーシング内に留まった場合、ケーシングと集水管は切断しないと回収ができず、全量処分されることになる危険性がある。 When a large amount of groundwater is gushing out, it is easy for the hole wall to collapse and earth and sand to flow into the casing, causing the water collection pipes to come off together when the casing is removed.
As a method of preventing joint disconnection, there is a method of attaching a water collecting pipe stopper shown in FIG. 3 to the tip of the water collecting pipe. In this method, when the water collecting pipe stays in the casing due to hole collapse, the casing and the water collecting pipe are cut. Otherwise, it cannot be collected and there is a risk that the entire amount will be disposed of.

特開平０６−３０６８４８号公報Japanese Unexamined Patent Publication No. 06-306848

本発明の目的とするところは、共抜け防止が可能な共抜け防止工具を提供することにある。 An object of the present invention is to provide a co-slip prevention tool capable of co-slip prevention.

本発明は、保孔管１の先端に取り付けられる保孔管１の共抜け防止器具２であって、
１端に円錐体３が装着された円筒部４と、
前記円筒部４の円周上に設けられた複数の窓５と、
弾性体からなり、前記複数の窓５の円錐体３側の１端から円錐体３方向に所定の間隔を置いて円錐体３の内周部に１端が固定され、他端に係留部６を有するストッパー７と、
１端に引出し用部材８が取り付けられ、他端にストッパー係止部９が設けられた留め金１０と、
を含み、
前記ストッパー７の係留部６は、保孔管１の挿入時に前記留め金１０に係留されており、ケーシング１１の引き抜き時には留め金１０を操作して留め金１０から外し、ストッパー７の他端を弾性力で円筒部４の窓５から円筒部４の外部に飛び出させることを特徴とする。 The present invention is a co-removal prevention device 2 for the hole-retaining tube 1 attached to the tip of the hole-retaining tube 1.
Cylindrical part 4 with a cone 3 attached to one end,
A plurality of windows 5 provided on the circumference of the cylindrical portion 4 and
It is made of an elastic body, and one end is fixed to the inner peripheral portion of the cone 3 at a predetermined interval from one end of the plurality of windows 5 on the cone 3 side in the direction of the cone 3, and the mooring portion 6 is attached to the other end. Stopper 7 with
A clasp 10 to which a drawer member 8 is attached to one end and a stopper locking portion 9 is provided to the other end.
Including
The mooring portion 6 of the stopper 7 is moored to the clasp 10 when the retaining tube 1 is inserted, and when the casing 11 is pulled out, the clasp 10 is operated to remove it from the clasp 10 and the other end of the stopper 7 is removed. It is characterized in that it is made to protrude from the window 5 of the cylindrical portion 4 to the outside of the cylindrical portion 4 by an elastic force.

また、本発明は、保孔管の先端に取り付けられる保孔管の共抜け防止器具であって、
１端に円錐体が装着された円筒部と、
前記円筒部の円周上に設けられた複数の窓と、
弾性体からなり、前記複数の窓の円錐体側の１端から円錐体方向に所定の間隔を置いて円錐体の内周部に１端が固定され、他端に係留部を有するストッパーと、
１端に引出し用部材が取り付けられ、他端にストッパー係止部が設けられた留め金と、
を含み、
前記ストッパーの係留部は、保孔管挿入時に前記留め金に係留されており、ケーシング引き抜き時には留め金を操作して留め金から外し、ストッパーの他端を弾性力で円筒部の窓から円筒部の外部に飛び出させ、
前記保孔管の連結は、連結する２つの保孔管の連結部の内側にステンレス鋼管製の内ソケットを挿入して行うこと、
を特徴とする。 Further, the present invention is a device for preventing co-removal of the hole-retaining tube attached to the tip of the hole-retaining tube.
A cylindrical part with a cone attached to one end,
A plurality of windows provided on the circumference of the cylindrical portion, and
A stopper made of an elastic body, one end of which is fixed to the inner peripheral portion of the cone at a predetermined distance in the direction of the cone from one end of the plurality of windows on the cone side, and a mooring portion at the other end.
A clasp with a drawer member attached to one end and a stopper locking portion at the other end.
Including
The mooring portion of the stopper is moored to the clasp when the hole-retaining pipe is inserted, and when the casing is pulled out, the clasp is operated to remove it from the clasp, and the other end of the stopper is elastically forced from the window of the cylindrical portion to the cylindrical portion. Let it pop out of the
The connection of the hole-retaining pipes is performed by inserting an inner socket made of a stainless steel pipe inside the connecting portion of the two hole-retaining pipes to be connected.
It is characterized by.

前記ストッパーは、長方形をなし、中央部に留め金１０の係止孔を有することを特徴とする。 The stopper has a rectangular shape and is characterized by having a locking hole for a clasp 10 in a central portion.

前記留め金１０の操作は、留め金１０の他端のストッパー係止部９を保孔管挿入口方向から引出し用部材８で引き抜くか、あるいは留め金１０の他端のストッパー係止部９を円錐体３の頂部の孔１２から挿入した引出し用部材８で引き抜いてストッパー７と留め金１０の係留を解除することを特徴とする。 In the operation of the clasp 10, the stopper locking portion 9 at the other end of the clasp 10 is pulled out from the hole-retaining tube insertion port direction by the drawer member 8, or the stopper locking portion 9 at the other end of the clasp 10 is pulled out. It is characterized in that the stopper 7 and the clasp 10 are released from the mooring by pulling out the drawer member 8 inserted from the hole 12 at the top of the conical body 3.

前記留め金１０には複数のストッパー７が共に係留され、ストッパー７の開放時には同時に開放されることを特徴とする。 A plurality of stoppers 7 are moored together with the clasp 10, and are opened at the same time when the stoppers 7 are opened.

前記ストッパー７の開放は、留め金１０の先端に係止されたストッパー係止部９を引張力によって取り外すことを特徴とする。 The opening of the stopper 7 is characterized in that the stopper locking portion 9 locked to the tip of the clasp 10 is removed by a tensile force.

前記内ソケットの両端部の外周には、連結される保孔管の内周に食い込むようねじ条の凹凸が設けられていることを特徴とする。The outer periphery of both ends of the inner socket is characterized in that the unevenness of the thread is provided so as to bite into the inner circumference of the hole-retaining pipe to be connected.

本発明によれば、本発明の共抜け防止器具２を保孔管１の先端に取り付け、ストッパーが共抜け防止器具２の内部に挿入された状態で所定の深度まで保孔管１を挿入してストッパーを開放すると、ケーシングを引き抜く際に共抜けが容易に防止できる。 According to the present invention, the co-removal prevention device 2 of the present invention is attached to the tip of the co-removal tube 1, and the hole retention tube 1 is inserted to a predetermined depth with the stopper inserted inside the co-removal prevention device 2. When the stopper is opened, the casing can be easily prevented from coming off when the casing is pulled out.

目的深度までの掘削は完了しても，ケーシングの前方が崩壊して集水管が挿入できない場合を示す図である。It is a figure which shows the case where the front of a casing collapses and a water collecting pipe cannot be inserted even if excavation to a target depth is completed. 集水管は挿入できたがケーシングと集水管が共抜けして集水管が横孔内に留まらない場合を示す図である。It is a figure which shows the case where the water collecting pipe could be inserted, but the casing and the water collecting pipe were pulled out together, and the water collecting pipe did not stay in the lateral hole. 従来、共抜け防止に使用された先端ストッパーである。Conventionally, it is a tip stopper used to prevent co-slip. 本願発明の共抜け防止器具の構造を示す図で、（ａ）は、保孔管入り口方向から引張る方式を示し、（ｂ）は、円錐体頂部から引張る方式を示し、（ｃ）は、ストッパーが窓から飛び出した状態を示す図である。In the figure which shows the structure of the co-exclusion prevention device of this invention, (a) shows the method of pulling from a hole-retaining pipe entrance direction, (b) shows the method of pulling from the top of a cone, and (c) is a stopper. It is a figure which shows the state which popped out from a window. （ａ）は、本願発明の共抜け防止器具の平面図、（ｂ）は、ストッパーの平面図、（ｃ）は、留め金の平面図である。(A) is a plan view of the co-slip prevention device of the present invention, (b) is a plan view of a stopper, and (c) is a plan view of a clasp. ケーシング１１、アウターロッド１５の２重菅掘削により横孔を掘削した状態を示す図である。It is a figure which shows the state which the lateral hole was excavated by the double pipe excavation of the casing 11 and the outer rod 15. ケーシング１１、アウターロッド１５の２重菅掘削により横孔を掘削した後ケーシング１１を抜き取った状態を示す図である。It is a figure which shows the state which pulled out the casing 11 after excavating a lateral hole by excavating a double pipe of a casing 11 and an outer rod 15. ストッパーを装着した保孔管を挿入後留め金を回収した図である。It is the figure which collected the clasp after inserting the hole holding tube which attached the stopper. ケーシングの先方が崩落し、保孔管の挿入が困難な状態を示す図である。It is a figure which shows the state which the tip of the casing collapses, and it is difficult to insert a hole-retaining pipe. ２つの保孔管の連結部の内側に装着される内ソケットを示す図である。It is a figure which shows the inner socket which is mounted inside the connecting part of two hole-retaining pipes. 内ソケットを示す図である。It is a figure which shows the inner socket.

本願発明は、共抜け防止器具のストッパーが共抜け防止器具の円筒部に収納された状態で共抜け防止器具を保孔管の先端に装着し、保孔管を所定の深度まで挿入した後、留め金を操作してストッパーを留め金から外しストッパーの先端を円筒部の窓から円筒部の外部に飛び出させ、ストッパーの先端を壁孔に引っ掛けて保孔管がケーシングと共に引き抜かれること、即ち共抜けを防止するものである。 In the present invention, the stopper of the co-removal prevention device is housed in the cylindrical portion of the co-removal prevention device, the co-removal prevention device is attached to the tip of the hole-retaining tube, and the hole-retaining tube is inserted to a predetermined depth. Operate the clasp to remove the stopper from the clasp, let the tip of the stopper pop out of the cylindrical part from the window of the cylindrical part, hook the tip of the stopper to the wall hole, and pull out the retaining tube together with the casing. It prevents the omission.

本願発明は、保孔管１の先端に取り付けられる保孔管１の共抜け防止器具２であって、１端に円錐体３が装着された円筒部４と、前記円筒部４の円周上に設けられた複数の窓５と、弾性体からなり前記複数の窓５の円錐体３側の内側に１端が固定され、他端には係留部６を有するストッパー７と、１端に引出し用部材８が取り付けられ、他端にストッパー係止部９が設けられた留め金１０と、を含み、
前記ストッパー７の係留部６は、保孔管１の挿入時に前記留め金１０に係留されており、ケーシング１１の引き抜き時には留め金１０を操作して留め金１０から外し、ストッパー７の他端を弾性力で円筒部４の窓５から円筒部４の外部に飛び出させるもので、飛び出したストッパー７の先端である他端を壁孔１３に引っ掛けて保孔管１の共抜けを防止するようになっている。 The present invention is a co-removal prevention device 2 for a hole-retaining tube 1 attached to the tip of the hole-retaining tube 1, a cylindrical portion 4 having a conical body 3 mounted at one end, and a cylindrical portion 4 on the circumference of the cylindrical portion 4. One end is fixed inside the conical body 3 side of the plurality of windows 5 composed of a plurality of windows 5 provided in the above and an elastic body, and a stopper 7 having a mooring portion 6 at the other end and a drawer at one end. Includes a clasp 10 to which a member 8 is attached and a stopper locking portion 9 is provided at the other end.
The mooring portion 6 of the stopper 7 is moored to the clasp 10 when the retaining tube 1 is inserted, and when the casing 11 is pulled out, the clasp 10 is operated to remove it from the clasp 10 and the other end of the stopper 7 is removed. It is made to protrude from the window 5 of the cylindrical portion 4 to the outside of the cylindrical portion 4 by elastic force, and the other end, which is the tip of the protruding stopper 7, is hooked on the wall hole 13 to prevent the retaining tube 1 from coming off together. It has become.

また、図１０に示す通り、保孔管の連結は、連結する２つの保孔管の連結部の内側にステンレス鋼管製の内ソケット１６を挿入して行うことができる。Further, as shown in FIG. 10, the hole-retaining pipes can be connected by inserting the inner socket 16 made of a stainless steel pipe inside the connecting portion of the two hole-retaining pipes to be connected.
図１１に示す通り、内ソケット１６の両端部の外周には、連結される保孔管の内周に食い込むようねじ条の凹凸が設けられている。As shown in FIG. 11, the outer circumferences of both ends of the inner socket 16 are provided with irregularities of threads so as to bite into the inner circumference of the hole-retaining pipe to be connected.

以下、保孔管１の共抜け防止器具２の使用状況について説明する。
図６、７に示す通り、ケーシング１１、アウターロッド１５の２重菅掘削により横孔を掘削した後ケーシング１１を抜き取る。
図８に示す通り保孔管１を挿入し、引出し用部材８により留め金１０を回収してストッパー７を飛び出させてケーシング１１を抜き取る。
図９に示す通り、ケーシング１１を抜き取った後にケーシング１１の先端部前方が崩壊し、集水管である保孔管１の挿入が困難になることがあるが、その際は、ストッパー７を装着した保孔管１を回収し、再度ケーシング１１の挿入を開始する
実施例では、保孔管１が５０ｍｍ径、アウターロッド１５が１３３ｍｍ径であった。 Hereinafter, the usage status of the joint disconnection prevention device 2 of the hole retention tube 1 will be described.
As shown in FIGS. 6 and 7, the casing 11 is removed after excavating a lateral hole by excavating a double tube of the casing 11 and the outer rod 15.
As shown in FIG. 8, the hole-retaining tube 1 is inserted, the clasp 10 is collected by the drawer member 8, the stopper 7 is popped out, and the casing 11 is pulled out.
As shown in FIG. 9, after the casing 11 is pulled out, the front end of the casing 11 may collapse, making it difficult to insert the hole-retaining pipe 1 which is a water collecting pipe. In that case, a stopper 7 is attached. In the embodiment in which the hole-retaining tube 1 is collected and the casing 11 is inserted again, the hole-retaining tube 1 has a diameter of 50 mm and the outer rod 15 has a diameter of 133 mm.

次に、保孔管１の共抜け防止器具２の機構について説明する。
図４（ａ）に共抜け防止器具２の全体図を、（ｂ）にストッパー７を、（ｃ）に留め金１０を示す。
図４、５に示すとおり、保孔管１の先端に取り付けられる保孔管１の共抜け防止器具２は、円筒部４の先端部に円錐体３が装着され、円筒部４の円周上２カ所に窓５が設けられている。２カ所の窓の円錐体３側の内側にストッパー７の１端がビスで固定されている。ストッパー７は、縦弾性係数が高いばね鋼あるいはステンレス製の長方形からなり、予め長手方向が半円形になるように成形してから１端を窓の円錐体３側の内側に固定し、半円形の長手方向の他端は、平坦に延ばして留め金１０に固定されている。 Next, the mechanism of the co-removal prevention device 2 of the hole retention tube 1 will be described.
FIG. 4A shows an overall view of the co-slip prevention device 2, FIG. 4B shows a stopper 7, and FIG. 4C shows a clasp 10.
As shown in FIGS. 4 and 5, the co-removal prevention device 2 of the hole-retaining tube 1 attached to the tip of the hole-retaining tube 1 has a conical body 3 attached to the tip of the cylindrical portion 4 and is on the circumference of the cylindrical portion 4. Windows 5 are provided at two places. One end of the stopper 7 is fixed to the inside of the cone 3 side of the two windows with screws. The stopper 7 is made of a rectangle made of spring steel or stainless steel having a high Young's modulus, is molded in advance so as to have a semicircular shape in the longitudinal direction, and then one end is fixed to the inside of the truncated cone 3 side of the window to form a semicircular shape. The other end in the longitudinal direction of the stainless steel is extended flat and fixed to the clasp 10.

ストッパー７は、ばね鋼が高い弾性値を有するため、留め金１０を外してストッパー７の他端が開放されると窓５から円筒部４の外側に飛ぶ出すことが出来る。
留め金１０は、１端に２個のストッパーを留めるかぎ状の先端を有しており、他端に引出し用部材８を結合する孔が明けられている。
ケーシング１１引き抜き時には留め金１０を引出し用部材８で引っ張ることによりストッパー７を留め金１０から外し、ストッパー７の他端が弾性力で円筒部４の窓５から円筒部４の外部に飛び出すようになっている。飛び出したストッパー７の先端が壁孔１３に引っ掛かって保孔管１の共抜けが防止できる。 Since the spring steel of the stopper 7 has a high elastic value, when the clasp 10 is removed and the other end of the stopper 7 is opened, the stopper 7 can fly out of the window 5 to the outside of the cylindrical portion 4.
The clasp 10 has a hook-shaped tip for fastening two stoppers at one end, and has a hole at the other end for connecting the drawer member 8.
When the casing 11 is pulled out, the stopper 7 is removed from the clasp 10 by pulling the clasp 10 with the pull-out member 8, and the other end of the stopper 7 is elastically pushed out from the window 5 of the cylindrical portion 4 to the outside of the cylindrical portion 4. It has become. The tip of the stopper 7 that protrudes can be caught in the wall hole 13 to prevent the retaining tube 1 from coming off together.

実施例の保孔管１の共抜け防止器具２は、全長が３２０ｍｍで、そのうち円錐体３が４０ｍｍ、円筒部４が２８０ｍｍとなっており、円筒の肉厚は４ｍｍ、径は、５０ｍｍであった。
ストッパー７は、長さ１００ｍｍ、幅１５ｍｍ、肉厚１ｍｍのバネ鋼製であり、１端の長手方向の２カ所を円筒部４の内周部にビス留めされていた。
留め金１０は、幅３０ｍｍ、長さ２５ｍｍ、肉厚３ｍｍの鋼材であった。 The co-removal prevention device 2 of the hole-retaining tube 1 of the embodiment has a total length of 320 mm, of which the cone 3 is 40 mm and the cylindrical portion 4 is 280 mm, the wall thickness of the cylinder is 4 mm, and the diameter is 50 mm. It was.
The stopper 7 was made of spring steel having a length of 100 mm, a width of 15 mm, and a wall thickness of 1 mm, and was screwed to the inner peripheral portion of the cylindrical portion 4 at two locations in the longitudinal direction of one end.
The clasp 10 was a steel material having a width of 30 mm, a length of 25 mm, and a wall thickness of 3 mm.

本発明の共抜け防止器具２を保孔管１の先端に取り付け、ストッパーが共抜け防止器具２の内部に挿入された状態で所定の深度まで保孔管１を挿入してストッパーを開放すると、ケーシングを引き抜く際に共抜けが容易に防止できる。 When the co-removal prevention device 2 of the present invention is attached to the tip of the hole-retaining tube 1, the hole-retaining tube 1 is inserted to a predetermined depth with the stopper inserted inside the co-removal prevention device 2, and the stopper is opened. When pulling out the casing, it can be easily prevented from coming off together.

また、図１０に示す通り、保孔管の連結は、ステンレス鋼管製の内ソケット１６を挿入して行うことができ、 図１１に示す通り、内ソケット１６の両端部の外周には、ねじ条の凹凸が設けられている。
保孔管には、通常塩化ビニル製の管（塩ビ管）が使用されるため、保孔管の連結に当たっては、先ずバーナーかヒートガンで塩ビ管を暖めて軟らかくする。次に、暖められて軟化した塩ビ管に内ソケットを差しこむと、連結部が冷却されるに従い、内ソケットのねじ状凹凸が塩ビ管に食い込み、この状態で連結部が冷却されると塩ビ管が硬化して強度が高く外径に凹凸のない長尺の保孔管が得られる。 Further, as shown in FIG. 10, the hole-retaining pipe can be connected by inserting the inner socket 16 made of a stainless steel pipe, and as shown in FIG. 11, threads are formed on the outer circumferences of both ends of the inner socket 16. The unevenness of is provided.
Since a vinyl chloride pipe (PVC pipe) is usually used as the hole-retaining pipe, the PVC pipe is first warmed and softened with a burner or a heat gun when connecting the hole-retaining pipe. Next, when the inner socket is inserted into the warmed and softened PVC pipe, as the connecting part is cooled, the screw-like unevenness of the inner socket bites into the PVC pipe, and when the connecting part is cooled in this state, the PVC pipe is cooled. Hardens to obtain a long hole-retaining tube with high strength and no unevenness in the outer diameter .

１ 保孔管，集水管
２ 共抜け防止器具
３ 円錐体
４ 円筒部
５ 窓
６ 係留部
７ ストッパー
８ 引出し用部材
９ ストッパー係止部
１０ 留め金
１１ ケーシング
１２ 頂部の孔
１３ 壁孔
１５ アウターロッド
１６ 内ソケット 1 Hole retention pipe, water collection pipe 2 Co-slip prevention device 3 Conical body 4 Cylindrical part 5 Window 6 Mooring part 7 Stopper 8 Pull-out member 9 Stopper locking part 10 Clasp 11 Casing 12 Top hole 13 Wall hole 15 Outer rod
16 inner socket

Claims (7)

保孔管の先端に取り付けられる保孔管の共抜け防止器具であって、
１端に円錐体が装着された円筒部と、
前記円筒部の円周上に設けられた複数の窓と、
弾性体からなり、前記複数の窓の円錐体側の１端から円錐体方向に所定の間隔を置いて円錐体の内周部に１端が固定され、他端に係留部を有するストッパーと、
１端に引出し用部材が取り付けられ、他端にストッパー係止部が設けられた留め金と、を含み、
前記ストッパーの係留部は、保孔管挿入時に前記留め金に係留されており、ケーシング引き抜き時には留め金を操作して留め金から外し、ストッパーの他端を弾性力で円筒部の窓から円筒部の外部に飛び出させ、
前記引き出し用部材は、ケーシング引き抜き時に留め金を引っ張ることによりストッパーを留め金から外し、飛び出したストッパーの先端が壁孔に引っ掛かって保孔管の共抜けが防止できることを特徴とする共抜け防止器具。 It is a device to prevent the hole-retaining tube from coming off together, which is attached to the tip of the hole-retaining tube.
A cylindrical part with a cone attached to one end,
A plurality of windows provided on the circumference of the cylindrical portion, and
A stopper made of an elastic body, one end of which is fixed to the inner peripheral portion of the cone at a predetermined distance in the direction of the cone from one end of the plurality of windows on the cone side, and a mooring portion at the other end.
Includes a clasp with a drawer member attached to one end and a stopper locking portion at the other end.
The mooring portion of the stopper is moored to the clasp when the hole-retaining pipe is inserted, and when the casing is pulled out, the clasp is operated to remove it from the clasp, and the other end of the stopper is elastically applied to the cylindrical portion from the window of the cylindrical portion. Let it pop out of the
The pull-out member is characterized in that the stopper is removed from the clasp by pulling the clasp when the casing is pulled out, and the tip of the stopper that protrudes is caught in the wall hole to prevent the co-retaining pipe from coming off together. Instrument. 保孔管の先端に取り付けられる保孔管の共抜け防止器具であって、
１端に円錐体が装着された円筒部と、前記円筒部の円周上に設けられた複数の窓と、弾性体からなり、前記複数の窓の円錐体側の１端から円錐体方向に所定の間隔を置いて円錐体の内周部に１端が固定され、他端に係留部を有するストッパーと、
１端に引出し用部材が取り付けられ、他端にストッパー係止部が設けられた留め金と、を含み、
前記ストッパーの係留部は、保孔管挿入時に前記留め金に係留されており、ケーシング引き抜き時には留め金を操作して留め金から外し、ストッパーの他端を弾性力で円筒部の窓から円筒部の外部に飛び出させ、前記保孔管の連結は、連結する２つの保孔管の連結部の内側にステンレス鋼管製の内ソケットを挿入して行ない、
前記引き出し用部材は、ケーシング引き抜き時に留め金を引っ張ることによりストッパーを留め金から外し、飛び出したストッパーの先端が壁孔に引っ掛かって保孔管の共抜けが防止できることを特徴とする共抜け防止器具。 It is a device to prevent the hole-retaining tube from coming off together, which is attached to the tip of the hole-retaining tube.
It is composed of a cylindrical portion having a conical body mounted on one end, a plurality of windows provided on the circumference of the cylindrical portion, and an elastic body, and is predetermined from one end of the plurality of windows on the conical side in the conical direction. A stopper with one end fixed to the inner circumference of the cone and a mooring part at the other end at intervals of
Includes a clasp with a drawer member attached to one end and a stopper locking portion at the other end.
The mooring portion of the stopper is moored to the clasp when the hole-retaining pipe is inserted, and when the casing is pulled out, the clasp is operated to remove it from the clasp, and the other end of the stopper is elastically forced from the window of the cylindrical portion to the cylindrical portion. The inner socket made of stainless steel pipe is inserted inside the connecting portion of the two hole-retaining pipes to be connected by popping out to the outside of the hole-retaining pipe.
The pull-out member is characterized in that the stopper is removed from the clasp by pulling the clasp when the casing is pulled out, and the tip of the stopper that protrudes is caught in the wall hole to prevent the co-retaining pipe from coming off together. Instrument. 前記ストッパーは、長方形をなし、中央部に留め金係止孔を有することを特徴とする請求項１または２記載の共抜け防止器具。 The co-removal prevention device according to claim 1 or 2 , wherein the stopper has a rectangular shape and has a clasp locking hole at a central portion. 前記留め金の操作は、留め金他端のストッパー係止部を保孔管挿入口方向から引出し用部材で引き抜くか、あるいは留め金他端のストッパー係止部を円錐体頂部の孔から挿入した引出し用部材で引き抜いてストッパーと留め金の係留を解除することを特徴とする請求項１または２記載の共抜け防止器具。 In the operation of the clasp, the stopper locking portion at the other end of the clasp is pulled out from the hole-retaining tube insertion port direction with a drawer member, or the stopper locking portion at the other end of the clasp is inserted from the hole at the top of the cone. The co-removal prevention device according to claim 1 or 2, wherein the stopper and the clasp are released from the mooring by pulling out with a drawer member. 前記留め金には複数のストッパーが共に係留され、ストッパー開放時には同時に開放されることを特徴とする請求項１または２記載の共抜け防止器具。 The co-removal prevention device according to claim 1 or 2, wherein a plurality of stoppers are moored together with the clasp, and the stoppers are opened at the same time when the stoppers are opened. 前記ストッパーの開放は、留め金先端に係止されたストッパー係止部引張力によって取り外すことを特徴とする請求項１または２記載の共抜け防止器具。 The co-disengagement prevention device according to claim 1 or 2, wherein the stopper is released by a tensile force of a stopper locking portion locked to the tip of the clasp. 前記内ソケットの両端部の外周には、連結される保孔管の内周に食い込むようねじ条の凹凸が設けられていることを特徴とする請求項２記載の共抜け防止器具。The co-removal prevention device according to claim 2, wherein the outer circumferences of both ends of the inner socket are provided with irregularities of threads so as to bite into the inner circumference of the hole-retaining pipe to be connected.
JP2017089298A 2016-04-28 2017-04-28 Retaining tube joint disconnection prevention device Expired - Fee Related JP6755469B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016090758 2016-04-28
JP2016090758 2016-04-28

Publications (2)

Publication Number Publication Date
JP2017201124A JP2017201124A (en) 2017-11-09
JP6755469B2 true JP6755469B2 (en) 2020-09-16

Family

ID=60264793

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2017089298A Expired - Fee Related JP6755469B2 (en) 2016-04-28 2017-04-28 Retaining tube joint disconnection prevention device

Country Status (1)

Country Link
JP (1) JP6755469B2 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07166544A (en) * 1993-12-16 1995-06-27 Kajima Corp Precast concrete pile construction method
EP1518976A1 (en) * 2003-09-26 2005-03-30 André Nicolet Post with barbed anchors
JP4662452B2 (en) * 2005-04-04 2011-03-30 鉄建建設株式会社 Water drainage pipe construction method
JP3122595U (en) * 2006-04-07 2006-06-15 サンスイエンジニアリング株式会社 Drain pipe pullout prevention device
KR20060069810A (en) * 2006-05-27 2006-06-22 서정희 Fixing type nailing apparatus and method of the same
JP4970416B2 (en) * 2008-12-19 2012-07-04 報国エンジニアリング株式会社 Groundwater level measurement method
JP2015014180A (en) * 2013-06-07 2015-01-22 株式会社中藏 Underground anchor, and antiseismic reinforcement method of artificial slope using the same
JP6390321B2 (en) * 2013-10-29 2018-09-19 新日鐵住金株式会社 Threaded joints for steel pipes

Also Published As

Publication number Publication date
JP2017201124A (en) 2017-11-09

Similar Documents

Publication Publication Date Title
KR101852826B1 (en) Helical pile of edge extension type
KR101329054B1 (en) Anchor for ground
KR100908566B1 (en) Slope reinforcement clutch set nailing system and construction method
JP2009192076A (en) Anchoring equipment
TWI816866B (en) Expansion anchor
JP2016125305A (en) Hole-in anchor
JP2017193880A (en) Earth anchor and fixation method of earth anchor
JP6755469B2 (en) Retaining tube joint disconnection prevention device
KR101896629B1 (en) Micro pile assembly having supporting force reinforcing member and micro pile constructing method using the same
JP4662452B2 (en) Water drainage pipe construction method
KR101057434B1 (en) Improved ground reinforcing bar assembly with expandable front wing
JP5837251B1 (en) Hole-pull-out prevention tool and hole-pipe installation method using the same
JP2011236578A (en) Subsidence prevention pile
RU193246U1 (en) SECURITY ANCHOR SECTION
JP3122595U (en) Drain pipe pullout prevention device
JP5256385B2 (en) Drilling bit
KR20100097875A (en) The strong anchor
CN107524677A (en) Expansion screw without bar planting glue
US4074735A (en) Grouting tube
JP2018062805A (en) Core material embedding method
KR20100111788A (en) Injection tube fixing apparatus
JP2008144558A (en) Drain material and its installation method
KR101083836B1 (en) Removable earth anchor
KR200282686Y1 (en) Wedge for inner anchoring device capable of removing tension member of ground anchor
JP5053462B1 (en) Auxiliary tool for collecting drainage pipe and method for burying drainage pipe using the same

Legal Events

Date Code Title Description
AA64 Notification of invalidation of claim of internal priority (with term)

Free format text: JAPANESE INTERMEDIATE CODE: A241764

Effective date: 20170530

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20170712

A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A711

Effective date: 20180611

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20180717

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20190227

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20190306

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20191218

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20191224

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20200225

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20200623

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20200722

R150 Certificate of patent or registration of utility model

Ref document number: 6755469

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees