JPH046868Y2 - - Google Patents
Info
- Publication number
- JPH046868Y2 JPH046868Y2 JP15970086U JP15970086U JPH046868Y2 JP H046868 Y2 JPH046868 Y2 JP H046868Y2 JP 15970086 U JP15970086 U JP 15970086U JP 15970086 U JP15970086 U JP 15970086U JP H046868 Y2 JPH046868 Y2 JP H046868Y2
- Authority
- JP
- Japan
- Prior art keywords
- blade
- spring
- pipe
- scraper
- movable cylinder
- 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
- 238000004140 cleaning Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Sewage (AREA)
- Cleaning In General (AREA)
Description
【考案の詳細な説明】 産業上の利用分野 本考案は管路清掃用スクレーパに関する。[Detailed explanation of the idea] Industrial applications The present invention relates to a scraper for cleaning pipes.
従来技術とその問題点
従来、正、逆２方向の牽引操作が可能であつ
て、正牽引操作時には、ブレードの先端を管内面
に圧接させて錆、ダストなどの研削除去を行な
い、逆牽引操作の時は、ブレードの先端を管内面
よりフリーとなし、管内より容易に引出し回収し
得るような管内清掃用スクレーパが提案されてい
る。Conventional technology and its problems Traditionally, traction operations in two directions, forward and reverse, were possible; during forward traction operation, the tip of the blade was brought into pressure contact with the inner surface of the tube to abrade away rust, dust, etc., and during reverse traction operation In this case, a scraper for cleaning the inside of a pipe has been proposed that allows the tip of the blade to be free from the inside of the pipe so that it can be easily pulled out and recovered from the inside of the pipe.
ところが従来提供されているこの種スクレーパ
は、ブレードの保有弾性を利用してブレード先端
を管内面に圧接するような構造になつているの
で、ブレードの消耗が激しく耐久性に欠けると共
に、管内面への押付け圧が管径の僅かの差によつ
て大きく影響を受け、例えば布設年度の相違など
により、僅かの管径差を持つインチ管とミリ管が
入り混じつているような管路の清掃に適用する
と、管径の大きい部分で清掃不充分となつたり、
或は管径の小さい部分で大きな牽引抵抗のために
牽引不能に陥るなどの問題を招き易い難点があつ
た。 However, this type of scraper that has been provided in the past has a structure in which the tip of the blade is brought into pressure contact with the inner surface of the pipe by utilizing the elasticity of the blade, so the blade wears out rapidly and lacks durability, and also causes damage to the inner surface of the pipe. The pressing pressure of the pipe is greatly affected by slight differences in pipe diameter.For example, it is useful for cleaning pipes where inch pipes and millimeter pipes are mixed together due to differences in the year of installation. If applied, cleaning may be insufficient in large pipe diameter areas,
Another drawback is that it tends to become impossible to tow due to large traction resistance in areas where the pipe diameter is small.
本考案は、このような従来の問題点を一掃する
ことを目的としてなされたものである。 The present invention was made with the aim of eliminating such conventional problems.
問題点を解決するための手段
本考案は、スクレーパ本体の中心軸の前部の周
側部に、基端枢支部を支点として上記軸の半径方
向に回動自在な後方傾斜型ブレードの複数枚が上
記軸の軸周りの方向に適当な間隔を存して備えら
れ、該ブレード群の基端枢支部より後方側の中心
軸上に、前後方向に移動自在であつて、常時はバ
ネにより前進位置を保持し、必要時には上記バネ
に抗して後方へ移動される可動筒が嵌装され、該
可動筒と、上記各ブレードの中間部位が、前方傾
斜のリンクを介して、それぞれ結合されているこ
とを特徴とする管路清掃用スクレーパに係る。Means for Solving the Problems The present invention has a plurality of backward-slanting blades attached to the front peripheral side of the central axis of the scraper body, which are rotatable in the radial direction of the axis using the base pivot as a fulcrum. are provided at appropriate intervals in the direction around the axis of the blade group, are movable in the front and back direction on the central axis on the rear side of the base end pivot of the blade group, and are normally moved forward by a spring. A movable tube that maintains its position and is moved rearward against the spring when necessary is fitted, and the movable tube and intermediate portions of each of the blades are connected via forward-sloping links, respectively. The present invention relates to a pipe cleaning scraper characterized in that:
実施例
以下に本考案の一実施例を添附図面にもとづき
説明すると次の通りである。Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings.
本考案スクレーパに於て、スクレーパ本体１
は、中心軸２と、該中心軸２の後端側に常時はバ
ネ３により前進位置を保持し、必要時に上記バネ
３に抗して後方へ移動し得るように備えられた可
動筒４から構成されている。バネ３として図には
コイルバネが示され、中心軸２の後端部のねじ部
２ａに螺装のナツト２ｂを締め、緩めすることに
より、バネ３の強さを適宜調整し得るようになつ
ている。このようなナツト２ｂの締緩操作を行う
ために、可動筒４の後端の蓋体４ａは管状本体４
ｂに対し、ボルト４ｃにより着脱自在に取付けら
れている。 In the scraper of the present invention, the scraper body 1
is from a central shaft 2 and a movable cylinder 4 provided on the rear end side of the central shaft 2 so that it is always held in the forward position by a spring 3 and can be moved rearward against the spring 3 when necessary. It is configured. A coil spring is shown in the figure as the spring 3, and the strength of the spring 3 can be adjusted as appropriate by tightening and loosening a nut 2b threaded onto the threaded portion 2a at the rear end of the central shaft 2. There is. In order to tighten and loosen the nut 2b, the lid 4a at the rear end of the movable cylinder 4 is attached to the tubular body 4.
It is removably attached to b by bolts 4c.
上記中心軸２の前端面の中心に正牽引部材（図
示せず）への連結部５が設けられ、また前部の周
側部には、基端枢支部６ａを支点として、管路ａ
の半径方向に回動自在な後方傾斜型ブレード６の
複数枚、例えば６枚が、中心軸２の軸周りの方向
に等間隔を存して備えられている。 A connecting portion 5 to a normal traction member (not shown) is provided at the center of the front end surface of the central shaft 2, and a conduit a is provided on the circumferential side of the front portion with the proximal pivot portion 6a as a fulcrum.
A plurality of radially rotatable rearwardly inclined blades 6, for example six blades, are provided at equal intervals in the direction around the central axis 2.
上記ブレード６は実質的に剛性であつて例えば
２枚の側板６ｂ，６ｂと、該側板６ｂ，６ｂの先
端に挟着固定された、前縁に刃先６c′を有するコ
字型の刃板６ｃから構成され、基端部の筒状部６
a1に於て中心軸２の体径部２ｃに軸６a2止され、
基端枢支部６ａを形成している。 The blade 6 is substantially rigid, and includes, for example, two side plates 6b, 6b, and a U-shaped blade plate 6c having a cutting edge 6c' at the front edge, which is clamped and fixed to the tips of the side plates 6b, 6b. A cylindrical portion 6 at the proximal end.
At a 1 , a shaft 6a 2 is fixed to the body diameter portion 2c of the central shaft 2,
It forms a proximal pivot 6a.
上記ブレード６は、長さ方向の中間部に於て、
前記可動筒４の周側部と、前方傾斜のリンク７を
介して結合される。リンク７は両端に筒状部７
ａ，７ａを有し、該筒状部７ａ，７ａに於て、ブ
レード６及び可動筒４に軸７ｂ止されている。 The blade 6 has, at the intermediate portion in the longitudinal direction,
It is connected to the circumferential side of the movable cylinder 4 via a forwardly inclined link 7. The link 7 has cylindrical parts 7 at both ends.
a, 7a, and a shaft 7b is fixed to the blade 6 and the movable cylinder 4 in the cylindrical parts 7a, 7a.
上記可動筒４の蓋体４ａの後端面の中心部に逆
牽引部材（図示せず）への連結部８が設けられて
いる。 A connecting portion 8 to a reverse traction member (not shown) is provided at the center of the rear end surface of the lid 4a of the movable cylinder 4.
第１図は可動筒４の前進位置保持状況を示し、
この状態のときは、中心軸２の後端が可動筒４の
蓋体４ａの前面に当止し、ブレード６は最大の張
出し巾を持つている。 FIG. 1 shows how the movable cylinder 4 is held in the forward position.
In this state, the rear end of the central shaft 2 is in contact with the front surface of the lid 4a of the movable cylinder 4, and the blade 6 has the maximum extension width.
この第１図に示された状態よりブレード６をそ
の基端枢支部６ａを支点として後方側に回動し、
その張出し巾を減じて行くと、可動筒４はこの回
動につれリンク７を介し、バネ３に抗して後方へ
移動されて行く。この移動は第２図に示すように
バネ３が圧縮限界に達すると最大となり、この時
ブレード６の張出し巾は最小となる。 From the state shown in FIG. 1, the blade 6 is rotated rearward about its base end pivot 6a as a fulcrum,
As the overhang width is reduced, the movable cylinder 4 is moved rearward against the spring 3 via the link 7 as the movable cylinder 4 rotates. This movement becomes maximum when the spring 3 reaches its compression limit as shown in FIG. 2, and at this time the overhanging width of the blade 6 becomes minimum.
本考案スクレーパによれば、ブレード６は実質
的に剛体であり、それ自身屈曲自在性を有しない
が、ブレード６は、第１図及び第２図に示された
可動筒４の移動許容限度内に於て、その基端枢支
部６ａを支点として、バネ３に抗し半径方向に自
由に回動でき、この回動につれ張出し巾が変るよ
うな構成になつている。 According to the scraper of the present invention, the blade 6 is substantially rigid and does not have flexibility itself, but the blade 6 is within the allowable movement limit of the movable cylinder 4 shown in FIGS. 1 and 2. It is configured such that it can freely rotate in the radial direction against the spring 3 using its base end pivot 6a as a fulcrum, and the overhang width changes as it rotates.
第３図は本考案スクレーパの管路ａ内設置状況
を示し、ブレード６の張出し巾は、第１図の最大
巾より僅かに減じられており、而して可動筒４は
バネ３に抗して後方へ僅かに移動し、バネ３のバ
ネ力が、ブレード６の先端に管路ａ内面への押付
け圧として作用している。この第３図に示す状態
で本考案スクレーパを常法に従い管路ａ内を正牽
引移動することにより管路ａ内面より付着物を研
削除去できる。 FIG. 3 shows how the scraper of the present invention is installed in conduit a, and the overhanging width of the blade 6 is slightly smaller than the maximum width shown in FIG. The blade 6 moves slightly backward, and the spring force of the spring 3 acts on the tip of the blade 6 as pressing pressure against the inner surface of the conduit a. In the state shown in FIG. 3, by moving the scraper of the present invention in a normal manner within the conduit a, the deposits can be removed by grinding from the inner surface of the conduit a.
管路ａ内での正牽引移動中、管径の小さい部分
に至つた場合は、可動筒４の後方への移動によつ
て、また管径の大きい部分に至つた場合は、同可
動筒４の前方への移動によつて、之等管径差に都
合よく対処でき、管路ａの管径の寸法誤差に拘わ
らず、管路ａ内を内面清掃を継続しつつスムーズ
に正牽引移動できる。 During normal traction movement in pipe a, when a part with a small diameter pipe is reached, the movable cylinder 4 is moved backward, and when a part with a large pipe diameter is reached, the same movable cylinder 4 is By moving forward, this difference in pipe diameter can be conveniently dealt with, and regardless of the dimensional error in the pipe diameter of pipe a, smooth forward traction movement can be performed while continuing internal cleaning inside pipe a. .
一方逆牽引移動時に於ては、牽引抵抗が大きく
なればなる程、可動筒４が後方側へ移動して、ブ
レード６の張出し巾を減ずる傾向となるので、管
路ａ内で何らかの理由で正牽引移動ができなくな
つた場合は、逆牽引に切換えることにより、スク
レーパを管路ａ内より容易に回収できる。 On the other hand, during reverse traction movement, the greater the traction resistance, the more the movable cylinder 4 tends to move toward the rear, reducing the overhanging width of the blade 6. If towing movement is no longer possible, the scraper can be easily recovered from inside the pipe a by switching to reverse traction.
第５図は本考案の他の実施の一例を示し、本実
施例に於ては、可動筒４より後方側の中心軸２上
にバネ３が巻装され、逆牽引部材への連結部８が
中心軸２の後端に設けられている以外は、第１〜
３図に示された実施例のものと実質的に異なる所
がない。 FIG. 5 shows another embodiment of the present invention. In this embodiment, a spring 3 is wound around the central shaft 2 on the rear side of the movable cylinder 4, and a connecting portion 8 to the reverse traction member is attached. is provided at the rear end of the central shaft 2.
There is no substantial difference from the embodiment shown in FIG.
効 果
このように本考案スクレーパによれば、正牽引
によつて管路内面の清掃を、また逆牽引によつて
管路内よりの回収を容易に行い得るものであつ
て、ブレードはその剛性に拘わらず、可動筒４の
移動許容限度内に於てバネ３に抗し、張出し巾を
自由に無理なく変えることができるので、保有弾
性に抗して無理に屈曲される従来型に比で消耗が
少なく耐久性に優れている。更にブレード６は、
第１図に示された最大張出し巾と、第２図に示さ
れた最小張出し巾間にあつては、バネ３力の多少
の差はあるものの比較的スムーズに張出し巾を自
由に変えることができ、従つて管路が異径管を含
むような場合であつても、正牽引不能などのトラ
ブルの発生なしに、その全長に亘る内面清掃を安
定確実に達成できる。Effects As described above, according to the scraper of the present invention, it is possible to easily clean the inner surface of the pipeline by forward traction, and to easily recover from the inside of the pipeline by reverse traction. Regardless of the movement of the movable tube 4, it is possible to resist the spring 3 and change the overhang width freely and effortlessly within the allowable movement limit, compared to the conventional type that is forced to bend against the elasticity of the movable tube 4. Low wear and tear and excellent durability. Furthermore, the blade 6 is
Between the maximum overhang width shown in Figure 1 and the minimum overhang width shown in Figure 2, it is possible to freely change the overhang width relatively smoothly, although there is some difference in the spring force. Therefore, even if the pipe line includes pipes of different diameters, inner surface cleaning over the entire length of the pipe line can be stably and reliably achieved without causing troubles such as inability to pull the pipe directly.
第１図は本考案の一実施例を示す可動筒前進時
の縦断面図、第２図は同可動筒後退時の縦断面
図、第３図は管路内への設置状況を示す縦断面
図、第４図は第３図の正面図、第５図は本考案の
他の実施例を示す側面図、である。
図に於て、１はスクレーパ本体、２は中心軸、
３はバネ、４は可動筒、６はブレード、７はリン
クである。
Fig. 1 is a vertical cross-sectional view of an embodiment of the present invention when the movable cylinder is moving forward, Fig. 2 is a longitudinal cross-sectional view of the movable cylinder when it is retracted, and Fig. 3 is a vertical cross-sectional view showing how it is installed in a conduit. 4 is a front view of FIG. 3, and FIG. 5 is a side view showing another embodiment of the present invention. In the figure, 1 is the scraper body, 2 is the central axis,
3 is a spring, 4 is a movable cylinder, 6 is a blade, and 7 is a link.
Claims (1)
端枢支部を支点として上記軸の半径方向に回動自
在な後方傾斜型ブレードの複数枚が上記軸の軸周
りの方向に適当な間隔を存して備えられ、該ブレ
ード群の基端枢支部より後方側の中心軸上に、前
後方向に移動自在であつて、常時はバネにより前
進位置を保持し、必要時には上記バネに抗して後
方へ移動される可動筒が嵌装され、該可動筒と、
上記各ブレードの中間部位が、前方傾斜のリンク
を介して、それぞれ結合されていることを特徴と
する管路清掃用スクレーパ。 A plurality of backward-slanting blades, which are rotatable in the radial direction of the shaft using the base pivot as a fulcrum, are arranged on the front peripheral side of the central shaft of the scraper body at appropriate intervals in the direction around the shaft. The blade group is provided with a blade that is movable in the front and back direction on a central axis rearward from the base end pivot portion of the blade group, and is normally held in the forward position by a spring, and is moved against the spring when necessary. A movable tube that is moved rearward is fitted, and the movable tube and
A pipe cleaning scraper characterized in that the intermediate portions of each of the blades are connected to each other via forward-sloping links.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15970086U JPH046868Y2 (en) | 1986-10-17 | 1986-10-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15970086U JPH046868Y2 (en) | 1986-10-17 | 1986-10-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6366191U JPS6366191U (en) | 1988-05-02 |
| JPH046868Y2 true JPH046868Y2 (en) | 1992-02-25 |
Family
ID=31084375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15970086U Expired JPH046868Y2 (en) | 1986-10-17 | 1986-10-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH046868Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6180256B2 (en) * | 2013-09-26 | 2017-08-16 | 株式会社 タニキカン | Pipe inner surface processing equipment |
-
1986
- 1986-10-17 JP JP15970086U patent/JPH046868Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6366191U (en) | 1988-05-02 |
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