JP3136143U

JP3136143U - Boring hole measuring instrument

Info

Publication number: JP3136143U
Application number: JP2007004430U
Authority: JP
Inventors: 力雄本田
Original assignee: 本田精機株式会社
Priority date: 2007-05-16
Filing date: 2007-05-16
Publication date: 2007-10-18
Anticipated expiration: 2017-05-16

Abstract

【課題】本考案は土木工事におけるボーリング孔の深度を測定する検尺作業を合理化して作業時間の短縮による省力化と測定の精度を向上させる。
【解決手段】一定間隔のピッチに穿孔された検尺テープ１をリール７に巻き取り、一端を同一のピッチを持ったピンチローラ２に噛み合わせ、さらに送水管８及び漏水管９内のパッキン９ｂを通して送水管に引き出しその先端にの牽引子を取り付けこれをボーリング管内に挿入する。
またピンチローラと同軸に回転計数器を取り付け、送水管から圧力水を注入して牽引子を検尺テープを牽引しながら管底まで押し下げ、ピンチローラに接続された回転計数器を駆動し、その目盛から検尺テープの走行距離すなわちボーリング孔の深度を測定する。
【選択図】図１The present invention streamlines a measuring operation for measuring the depth of a boring hole in civil engineering work, thereby reducing labor time and improving measurement accuracy.
SOLUTION: A measuring tape 1 perforated at a constant pitch is wound around a reel 7, and one end is meshed with a pinch roller 2 having the same pitch, and further a packing 9b in a water supply pipe 8 and a water leakage pipe 9 is provided. A puller is attached to the tip of the water pipe through the water pipe, and this is inserted into the boring pipe.
A rotation counter is attached coaxially with the pinch roller, pressure water is injected from the water supply pipe, the retractor is pushed down to the bottom of the tube while pulling the measuring tape, and the rotation counter connected to the pinch roller is driven. The distance traveled by the measuring tape from the scale, that is, the depth of the borehole is measured.
[Selection] Figure 1

Description

本考案は、土木工事におけるボーリング孔の深度測定（検尺）に関するものである。 The present invention relates to a borehole depth measurement (measurement scale) in civil engineering work.

従来、土木工事におけるボーリングは一定長のボーリング管の先端に刃を取り付け、これを回転しながら掘り進み、管長が足りなくなれば次の管をネジ接続して連結延長して所定の深さまで掘り進むようになっていて、検査員による孔の深度測定には穿孔に使用したボーリング管を引き抜き、その本数と管長を乗算して深度を測定しているのが現状である。 Conventionally, in civil engineering work, a drill is attached to the tip of a boring pipe of a certain length, and it is dug while rotating, and when the pipe length is insufficient, the next pipe is screwed and connected to extend to a predetermined depth. At present, the depth of the hole is measured by the inspector by pulling out the boring tube used for drilling and multiplying the number by the tube length.

ボーリングの深さは３０ｍから１００ｍを超えることもあり、従来の深度測定では、検査員は引き抜かれた管の本数確認と、深度確認のため長時間の立会いが必要であった。
また、検尺した深度が設計値に達しない場合は、再度ボーリング管を埋めなおして作業を続けなければならず、さらに長時間の作業が必要であった。The depth of the boring may exceed 30 m to 100 m, and in the conventional depth measurement, the inspector needs to be present for a long time to confirm the number of tubes pulled out and to confirm the depth.
Further, when the measured depth does not reach the design value, the work has to be continued by refilling the boring tube, which requires a longer work.

本考案は、これらの作業時間を短縮し、精密な検尺を行うことにより、作業能率を向上して前述の欠点を解決しようとするものである。 The present invention aims to improve the work efficiency and solve the above-mentioned drawbacks by shortening the work time and performing a precise measuring scale.

第一の手段は、一定間隔のピッチに穿孔された薄い帯状の検尺テープをリールに巻き取り、一端を同一のピッチを持ったピンチローラに噛み合わせ、パッキンを通して送水管内に取り出し、先端に発泡ウレタン等で作られた海綿状の紡錘形の牽引子を取り付けこれをボーリング管内に挿入する。
またピンチローラを回転計数器の回転軸に取り付け、送水管の上部から圧力水（水道水程度）を送入して牽引子を検尺テープを牽引しながら管底まで押し下げれば検尺テープはこれと噛み合うピンチローラ回転させ、回転計数器を駆動し、その目盛を読んで検尺テープの走行距離すなわちボーリング孔の深度を測定するものである。The first means is to wind a thin strip-shaped measuring tape perforated at a constant pitch around a reel, engage one end with a pinch roller with the same pitch, take it into a water pipe through packing, and foam at the tip A spongy spindle-shaped retractor made of urethane or the like is attached and inserted into the boring tube.
In addition, if the pinch roller is attached to the rotating shaft of the rotary counter, pressure water (about tap water) is fed from the top of the water pipe and the retractor is pushed down to the bottom of the pipe while pulling the scale tape, The pinch roller meshing with this is rotated, the rotation counter is driven, the scale is read, and the travel distance of the measuring tape, that is, the depth of the borehole is measured.

第２の手段は、さらに構造を単純にしたもので、リールに巻かれた巻尺テープを上端にパッキンを嵌め込んだ透明な円管で作られた読取管を通して読取管の下に接続された送水管に導き、巻尺テープの先端に海綿体（スポンジ）で作られた紡錘形の牽引子を取り付け、送水管上部から圧力水（水道水程度）を送入して牽引子を検尺テープを牽引しながら管底まで押し下げ、水で満たされた読取管の中の巻尺テープの目盛を読んで深度を測定する
水で満たされた読取管の中の巻尺テープは水レンズの作用により目盛は拡大されて読み取りを容易にするものである。The second means further simplifies the structure, and is connected to the bottom of the reading tube through a reading tube made of a transparent circular tube with a packing tape fitted on the upper end of a tape tape wound on a reel. A spindle-shaped retractor made of cavernous body (sponge) is attached to the tip of the tape measure tape, and pressure water (about tap water) is fed from the upper part of the water supply tube to pull the retractor to the measuring tape. While pressing down to the bottom of the tube, measure the depth by reading the scale of the tape tape in the reading tube filled with water. The scale of the tape tape in the reading tube filled with water is enlarged by the action of the water lens. It facilitates reading.

上述のように、本考案の検尺器は検尺のためにボーリング管を引き抜くことなく短時間で、また簡単な操作で正確な深度測定と確認が出来るため、工事及び作業効率を向上させ工事の合理化による効果がある。 As described above, the measuring instrument of the present invention can perform accurate depth measurement and confirmation in a short time and with simple operation without pulling out the boring tube for measuring, thus improving the construction and work efficiency. There is an effect by rationalization.

以下、本考案の実施の形態を実施例に基づき図１〜図５により説明する。 Hereinafter, embodiments of the present invention will be described with reference to FIGS.

図１に示すように、一定間隔のピッチで穿孔された金属の薄く細長い検尺テープ１をリール７に巻き取り、リールを蓋付の立方体の筐体１２に回転自在に取り付け、リール軸に蓋を通して巻上ハンドル６を着脱可能に装着する。 As shown in FIG. 1, a metal thin and long measuring tape 1 perforated at a constant pitch is wound around a reel 7, and the reel is rotatably attached to a cubic housing 12 with a lid, and the reel shaft is covered with a lid. The hoisting handle 6 is detachably attached.

検尺テープの一端をテンションローラ５を経由して、円周上に検尺テープと同じピッチの突起を持ち筐体に回転自在に取り付けられたピンチローラ２に噛み合い係合させ、検尺テープがピンチローラから外れるのを防止するため、検尺テープを挟んで押さえ板３をピンチローラの外周にスプリングにより軽く圧接させる。 One end of the measuring tape is engaged with and engaged with a pinch roller 2 that has a protrusion having the same pitch as the measuring tape on the circumference and is rotatably attached to the casing, via the tension roller 5. In order to prevent the pinch roller from coming off, the pressing plate 3 is lightly pressed against the outer periphery of the pinch roller by a spring with a measuring tape interposed therebetween.

筐体の下部に送水管８を取り付け、送水管の上部に漏水管９接続しその上下にパッキン９ｂを嵌め込み、検尺テープを漏水管の中をパッキンを通して引き出し、その先端に発泡ウレタン等の海綿体で作られた紡錘形の牽引子１１を取り付け、送水管の下に取り付けられたカプラ１０で接続されたボーリング管Ａに挿入する。
送水管の中間に分岐して注水口８ａを取り付け、また送水管の下部に分岐して排水口９ａを設ける。A water pipe 8 is attached to the lower part of the housing, a water leak pipe 9 is connected to the upper part of the water pipe, a packing 9b is fitted on the upper and lower sides, a measuring tape is pulled out through the water leak pipe, and a sponge such as urethane foam is drawn on the tip A spindle-shaped retractor 11 made of a body is attached and inserted into a boring pipe A connected by a coupler 10 attached under the water supply pipe.
A water injection port 8a is attached by branching to the middle of the water pipe, and a drain port 9a is provided by branching to the lower part of the water pipe.

検尺テープの孔ピッチとピンチローラの突起数とを、検尺テープの走行距離が回転計数器の目盛に表示されるよう設定し、回転計数器の指示目盛が検尺テープの走行距離すなわち深度を表示するようにする。 Set the hole pitch of the measuring tape and the number of protrusions of the pinch roller so that the distance traveled by the measuring tape is displayed on the scale of the rotation counter. Is displayed.

次にその作用について説明すると、最初に巻上ハンドルを回して牽引子を測定基点まで引き上げ、回転計数器の指示を０に合わせ、注入口から圧力水を注入する。
牽引子は水圧に押されてボーリング管内を下降すると、これに牽引されて検尺テープは走行してピンチローラを回転し同軸に取り付けられた回転計数器を駆動し、牽引子がボーリング管の底に達して停止するので，その時の回転計数器の目盛を読んで深度を計測する
また、パッキンを漏れて漏水管内に侵入した水は排水口から排出される。Next, the operation will be described. First, the hoisting handle is turned to raise the retractor to the measurement base point, the indication of the rotation counter is set to 0, and the pressure water is injected from the inlet.
When the retractor is pushed down by the water pressure and descends in the boring tube, it is pulled and the measuring tape runs and rotates the pinch roller to drive the rotation counter attached coaxially, and the retractor moves to the bottom of the boring tube. Therefore, the depth is measured by reading the scale of the counter at that time. The water leaking from the packing and entering the leak pipe is discharged from the drain.

図４、及び図５に示すように、側面に窓１５ａを設けた筐体１５に、回転可能に取り付けられ、巻上ハンドル６を着脱可能に装着したリール７に巻かれた巻尺テープ１３の巻き出し部を、上端にパッキン１４ａを嵌め込み、溢水口１４ｃ及びテープガイド１４ｂを設けた透明な円管状の読取管１４を通して読取管の下に接続された送水管８に導き、巻尺テープの先端に海綿体（スポンジ）で作られた紡錘形の牽引子１１を取り付け、カプラ１０で接続されたボーリング管Ａ内に挿入する。 As shown in FIGS. 4 and 5, winding of a tape measure tape 13 wound around a reel 7 rotatably attached to a casing 15 provided with a window 15a on a side surface and detachably mounted with a winding handle 6 is possible. The lead-out portion is inserted into the packing 14a at the upper end, led to the water supply pipe 8 connected under the reading pipe through the transparent circular reading pipe 14 provided with the overflow port 14c and the tape guide 14b, and the sponge is attached to the tip of the tape measure tape. A spindle-shaped retractor 11 made of a body (sponge) is attached and inserted into a boring tube A connected by a coupler 10.

前述の実施例１と同様に、送水管上部から圧力水（水道水程度）を注入して牽引子を巻尺テープを牽引しながら管底まで押し下げ、窓から水で満たされた読取管の中にある巻尺テープの目盛を直接読んで深度を測定する。 As in the first embodiment, pressure water (about tap water) is injected from the upper part of the water pipe, the retractor is pushed down to the bottom of the pipe while pulling the tape measure tape, and the water is filled from the window into the reading pipe filled with water. Read the scale on a tape measure tape and measure the depth.

本考案のボーリング孔検尺器の正面図Front view of the boring hole measuring instrument of the present invention 検尺テープの詳細図Detailed view of measuring tape 検尺器を使用した関係説明図Relationship diagram using a measuring instrument 実施例２のボーリング孔検尺器の正面図Front view of boring hole measuring instrument of Example 2 実施例２のボーリング孔検尺器の側面図Side view of the borehole measuring instrument of the second embodiment

Explanation of symbols

１検尺テープ２ピンチローラ３押さえ板４回転計数器
５テンションローラ６巻上ハンドル７リール８送水管
９漏水管１０カプラ１１牽引子１２筐体
１３巻尺テープ１４読取管１５窓付筐体DESCRIPTION OF SYMBOLS 1 Measuring tape 2 Pinch roller 3 Holding plate 4 Rotating counter 5 Tension roller 6 Hoisting handle 7 Reel 8 Water supply pipe 9 Water leak pipe 10 Coupler 11 Puller 12 Case 13 Tape measure tape 14 Reading pipe 15 Case with window

Claims

A thin strip-shaped measuring tape perforated at a constant pitch is wound around a reel, one end of unwinding is engaged with a pinch roller having the same pitch as the measuring tape, taken out into the water pipe through packing, and the tip Attach a spongy spindle-shaped retractor.
A pinch roller is attached to the rotary shaft of the rotary counter, and the hole pitch of the measuring tape and the number of protrusions of the pinch roller are set so that the distance traveled by the measuring tape is displayed on the scale of the rotary counter. Boring hole measuring instrument.

The tape tape wound on the reel is led to the water pipe connected to the bottom of the reading tube through the reading tube made of a transparent circular tube with packing at the upper end. A boring hole measuring instrument according to claim 1, further comprising a spindle-shaped retractor made of the above.