JPH0626028Y2 - Waterproof sealing device - Google Patents

Waterproof sealing device

Info

Publication number
JPH0626028Y2
JPH0626028Y2 JP11961688U JP11961688U JPH0626028Y2 JP H0626028 Y2 JPH0626028 Y2 JP H0626028Y2 JP 11961688 U JP11961688 U JP 11961688U JP 11961688 U JP11961688 U JP 11961688U JP H0626028 Y2 JPH0626028 Y2 JP H0626028Y2
Authority
JP
Japan
Prior art keywords
cable
underground
main body
water
opening
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 - Lifetime
Application number
JP11961688U
Other languages
Japanese (ja)
Other versions
JPH0241624U (en
Inventor
富夫 松本
Original Assignee
エヌオーケー株式会社
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 エヌオーケー株式会社 filed Critical エヌオーケー株式会社
Priority to JP11961688U priority Critical patent/JPH0626028Y2/en
Publication of JPH0241624U publication Critical patent/JPH0241624U/ja
Application granted granted Critical
Publication of JPH0626028Y2 publication Critical patent/JPH0626028Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【考案の詳細な説明】 (1)考案の目的 [産業上の利用分野] 本考案は、地下埋設管の開口部と地下埋設用ケーブルと
の間に配設される高吸水ゴム部材を備えてなる防水シー
ル装置に関するものである。
[Detailed Description of the Invention] (1) Purpose of the Invention [Industrial field of application] The present invention is provided with a highly water-absorbing rubber member arranged between the opening of the underground burial pipe and the cable for underground burial. The present invention relates to a waterproof sealing device.

[従来の技術] 従来この種の防水シール装置としては、第3図(a)(b)に
示した防水シール装置10のごとく、地下埋設管30の開口
部に挿入される高吸水ゴム部材11の本体筒部11Aとフラ
ンジ部11Bとが同一の高い膨潤率とされてなるものが提
案されていた。
[Prior Art] Conventionally, as a waterproof sealing device of this type, like the waterproof sealing device 10 shown in FIGS. 3 (a) and 3 (b), a highly water-absorbing rubber member 11 to be inserted into an opening of an underground buried pipe 30 is used. It has been proposed that the main body cylinder portion 11A and the flange portion 11B have the same high swelling rate.

[解決すべき問題点] しかしながら従来の防水シール装置10では、(i)地下水
が第3図(a)に矢印で示すごとく到来したとき、その地
下水が地下埋設用ケーブル20にそって貫通孔11Dから地
下埋設管30内に浸入する欠点があり、また(ii)高吸水ゴ
ム部材11が地下水を吸収して膨潤したとき、第3図(b)
に示すように、フランジ部11Bが過度に膨潤し変形して
しまい、結果的に地下埋設用ケーブル20の周面から高吸
水ゴム部材11が離間してしまって地下埋設管30内へ地下
水が浸入してしまう欠点もあった。さらに(iii)高吸水
ゴム部材11がケーブルに直接接触しているので、接触部
においてケーブルとの摩擦力が大きく、(iv)ケーブルを
撤去する際に抜取り作業が面倒である。また、(v)環境
変化によってケーブルが熱膨張あるいは熱収縮により伸
縮するが、その際に高吸水ゴム部材との接触部において
引っかかり、シール不良を起こすおそれもあった。
[Problems to be Solved] However, in the conventional waterproof seal device 10 , when (i) groundwater arrives as shown by an arrow in FIG. 3 (a), the groundwater passes through the through hole 11D along the underground burying cable 20. There is a defect that it intrudes into the underground buried pipe 30 from the above, and (ii) when the super absorbent rubber member 11 absorbs ground water and swells, FIG. 3 (b)
As shown in, the flange portion 11B is excessively swollen and deformed, and as a result, the highly water-absorbent rubber member 11 is separated from the peripheral surface of the underground burying cable 20 , and the underground water enters the underground burying pipe 30 . There was also the drawback of doing so. Furthermore, (iii) since the highly water-absorbent rubber member 11 is in direct contact with the cable, a frictional force with the cable is large at the contact portion, and (iv) extraction work is difficult when removing the cable. Further, (v) the cable expands and contracts due to thermal expansion or thermal contraction due to environmental changes, but at that time, there is a possibility that the cable may be caught at the contact portion with the highly water-absorbing rubber member, resulting in poor sealing.

そこで本考案は、これらの欠点を除去すべく、地下水が
到来したとき直ちに吸収して地下埋設管内へ浸入するこ
とを阻止でき、かつ地下水を吸収しても地下埋設用ケー
ブルの周面から離間せず地下埋設管内へ地下水が浸入す
ることを阻止でき、さらにケーブルとの間の摩擦力を軽
減してケーブル撤去作業の容易化及び熱膨張あるいは熱
収縮時のケーブル伸縮を許容し得る防水シール装置を提
供せんとするものである。
Therefore, in order to eliminate these drawbacks, the present invention can prevent the groundwater from immediately absorbing and entering the underground burial pipe when it arrives, and even if the groundwater is absorbed, it should be separated from the peripheral surface of the underground burial cable. A waterproof seal device that can prevent the infiltration of groundwater into underground buried pipes, reduces the frictional force with the cable, facilitates cable removal work, and allows cable expansion and contraction during thermal expansion or contraction. It is intended to be provided.

(2)考案の構成 [問題点の解決手段] 本考案により提供される問題点の解決手段は、 ケーブルが挿通される管路開口部に設けられ、ケーブル
外周と管路開口部内周間の隙間を密封する高吸水ゴム部
材を備えた防水シール装置において、前記高吸水ゴム部
材を、管路開口部内周とケーブル外周との間に挿入され
る膨潤率の大きな本体筒部と、該本体筒部に対して一体
に形成され前記管路開口部外に突出する前記本体筒部よ
りも膨潤率の小さな外部露出部と、から構成し、前記本
体筒部内周に吸水繊維部材を有すると共に、前記外部露
出部外周に前記ケーブルに対する締付部材を有すること
を特徴とする防水シール装置 である。
(2) Configuration of the Invention [Means for Solving the Problems] The means for solving the problems provided by the present invention is provided in the conduit opening portion through which the cable is inserted, and the gap between the outer circumference of the cable and the inner circumference of the conduit opening portion is provided. In a waterproof sealing device including a highly water-absorbing rubber member for sealing a water-absorbing rubber member, the highly water-absorbing rubber member is inserted between an inner circumference of a pipe opening and an outer circumference of a cable, and a main body cylinder part having a large swelling rate, and the main body cylinder part. An externally exposed portion having a swelling rate smaller than that of the main body tubular portion that is integrally formed with respect to the main body tubular portion, and has a water absorbing fiber member on the inner circumference of the main body tubular portion. It is a waterproof seal device characterized by having a fastening member for the cable on the outer periphery of the exposed portion.

[作用] 本考案にかかる防水シール装置は、高吸水ゴム材料によ
って形成されており、地下埋設管の開口部と前記開口部
を通過する地下埋設用ケーブルとの間に配設される高吸
水ゴム部材を備えてなる防水シール装置において、地下
埋設管の開口部内に挿入される高吸水ゴム部材の本体筒
部がフランジ部に比して大きな膨潤率を有し、かつ高吸
水ゴム部材の本体筒部の内周面に対して吸水繊維部材が
配設されてなるので、(i)地下水が到来したとき、それ
を吸水繊維部材が直ちに吸収して短時間で膨張するの
で、その初期において地下水が地下埋設管へ浸入するこ
とを実質的に阻止する作用をなし、また(ii)地下埋設管
内に位置する本体筒部の膨潤率に比べて地下埋設管外に
位置するフランジ部の膨潤率が小さいので、地下水の吸
収に際し高防水ゴム部材が過度に変形することがなく、
ひいては高吸水ゴム部材が地下埋設用ケーブルの周面か
ら離間されることを阻止し、地下水が地下埋設管内に浸
入することを阻止する作用をなし、併せて(iii)吸水繊
維部材の圧縮性が良好であるので、地下水を吸収してい
ないとき、地下埋設用ケーブルとの間で相対移動を許容
する作用をなし、結果的に(iv)地下埋設用ケーブルの撤
去を確保する作用、ならびに(v)熱膨張あるいは熱収縮
などに際して地下埋設用ケーブルの伸縮ないし移動を許
容する作用をなす。
[Operation] The waterproof sealing device according to the present invention is made of a highly water-absorbent rubber material, and is disposed between the opening of the underground burying pipe and the underground burying cable passing through the opening. In a waterproof sealing device including a member, a main body tube portion of a highly water-absorbing rubber member inserted into an opening of an underground buried pipe has a greater swelling ratio than a flange portion, and a main body tube portion of the highly water-absorbing rubber member. Since the water-absorbent fiber member is arranged on the inner peripheral surface of the part, (i) when the groundwater arrives, the water-absorbent fiber member immediately absorbs it and expands in a short time. It has the effect of substantially preventing entry into the underground buried pipe, and (ii) the swelling rate of the flange portion outside the underground buried pipe is smaller than the swelling rate of the main body cylinder portion located inside the underground buried pipe. Therefore, it is highly preventive in absorbing groundwater. Without rubber member is excessively deformed,
As a result, it prevents the highly water-absorbing rubber member from being separated from the peripheral surface of the underground burying cable, and prevents groundwater from entering the underground burial pipe. Since it is good, it has a function of allowing relative movement with the underground burying cable when not absorbing groundwater, and consequently (iv) an action of ensuring removal of the underground burying cable, and (v) ) It has the function of permitting the expansion and contraction or movement of the underground burial cable upon thermal expansion or contraction.

[実施例] 次に本考案にかかる防水シール装置ついて、その好まし
い実施例を挙げ、具体的に説明する。しかしながら以下
に説明する実施例は、本考案の理解を容易化ないし促進
化するために記載するものであって、本考案を限定する
ために記載されるものではない。換言すれば、以下に説
明される実施例において開示される各部材は、本考案の
精神ならびに技術的範囲に属する限り、各種の設計変更
ならびに均等物置換を含むものである。
[Embodiment] Next, the waterproof sealing device according to the present invention will be specifically described with reference to its preferred embodiments. However, the embodiments described below are provided for facilitating or facilitating the understanding of the present invention, and not for limiting the present invention. In other words, each member disclosed in the embodiments described below includes various design changes and equivalent replacements as long as they are within the spirit and technical scope of the present invention.

第1図(a)は、本考案にかかる防水シール装置の第1の
実施例を示す断面図である。
FIG. 1 (a) is a sectional view showing a first embodiment of a waterproof sealing device according to the present invention.

第1図(b)は、第1図(a)に示した実施例の分解斜視図で
ある。
FIG. 1 (b) is an exploded perspective view of the embodiment shown in FIG. 1 (a).

第1図(c)(d)は、ともに第1図(a)に示した実施例の動
作説明のための断面図である。
FIGS. 1 (c) and (d) are sectional views for explaining the operation of the embodiment shown in FIG. 1 (a).

第2図ないし第4図は、それぞれ本考案にかかる防水シ
ール装置の第2ないし第4の実施例を示す断面図であ
る。
2 to 4 are cross-sectional views showing second to fourth embodiments of the waterproof sealing device according to the present invention.

まず第1図(a)〜(d)を参照しつつ、本考案にかかる防水
シール装置の第1の実施例について、その構成および作
用を詳細に説明する。10 は、本考案にかかる防水シール装置であって、地下埋
設用ケーブル20の周囲に配設された状態で地下埋設管30
の開口部に配設されることにより、地下埋設用ケーブル
20と地下埋設管30との間の間隙から地下水が地下埋設管
30内へ浸入することを防止している。
First, referring to FIGS. 1 (a) to (d), the structure and operation of a first embodiment of a waterproof sealing device according to the present invention will be described in detail. Reference numeral 10 denotes a waterproof seal device according to the present invention, which is installed in the surroundings of an underground burying cable 20 and has an underground burying pipe 30.
By being installed in the opening of the underground cable
Groundwater flows from the gap between the underground pipe 20 and the underground pipe 30.
Prevents intrusion into 30 .

防水シール装置10は、膨潤率が大きくかつ地下埋設管30
の開口部内に挿入される本体筒部11Aと、本体筒部11Aに
対して一体に形成されており膨潤率が小さくかつ地下埋
設管30の開口部内に挿入されず開口部外に位置するフラ
ンジ部11Bと、膨潤率が小さくかつフランジ部11Bの外側
端面(すなわち本体筒部11Aに接合されていない端面)
に対し一体に形成されたリップ部11Cとを包有してお
り、本体筒部11A,フランジ部11Bおよびリップ部11Cに
対して地下埋設用ケーブル20を挿通するための貫通孔11
Dが形成され吸水時に膨潤して地下埋設管30の開口部内
周面と地下埋設用ケーブル20の周面との間の間隙を閉鎖
する高吸水ゴム部材11を備えている。上記フランジ部11
Bおよびリップ部11Cが本考案の外部露出部を構成する。
The waterproof seal device 10 has a large swelling rate and an underground buried pipe 30.
Main body tubular portion 11A to be inserted into the opening portion of, and a flange portion that is integrally formed with the main body tubular portion 11A, has a small swelling rate, and is not inserted into the opening portion of the underground buried pipe 30 and is located outside the opening portion. 11B and the outer end surface of the flange portion 11B having a small swelling rate (that is, the end surface not joined to the main body tubular portion 11A)
A through hole 11 for inserting the underground burying cable 20 into the main body tubular portion 11A, the flange portion 11B and the lip portion 11C.
A highly water-absorbing rubber member 11 is provided which closes the gap between the inner peripheral surface of the opening of the underground burying pipe 30 and the peripheral surface of the underground burying cable 20 by forming D and swelling when absorbing water. Above flange 11
B and the lip portion 11C constitute the external exposed portion of the present invention.

更に防水シール装置10は、高吸水ゴム部材11の本体筒部
11Aの内周面11Aaおよび外周面11Abに対してそれぞれ配
設されており圧縮性が良好で吸水能力に富みかつ本体筒
部11Aの吸水を促進するための吸水繊維部材12,13と、リ
ップ部11Cの外周面に対して配設されており高吸水ゴム
部材11が吸水時に膨潤しても地下埋設用ケーブル20の周
面から離間することを阻止しかつ防水膨潤に伴なう背圧
によって高吸水ゴム部材11が地下埋設管30の開口部外へ
押し出されそうになることを阻止するための締付部材14
とを備えている。
Further, the waterproof sealing device 10 is a main body cylindrical portion of the highly water-absorbing rubber member 11.
Water absorbing fiber members 12 and 13, which are respectively disposed on the inner peripheral surface 11Aa and the outer peripheral surface 11Ab of 11A, have good compressibility and are rich in water absorption capacity, and promote water absorption of the main body cylindrical portion 11A, and a lip portion. Even if the highly water-absorbent rubber member 11 swells when absorbing water, it is prevented from being separated from the peripheral surface of the underground burying cable 20 and is high due to the back pressure accompanying the waterproof swelling. Tightening member 14 for preventing the water absorbent rubber member 11 from being likely to be pushed out of the opening of the underground buried pipe 30.
It has and.

防水シール部材10は、地下埋設用ケーブル20を通過せし
めて貫通孔11Dに対して挿通せしめるために、高吸水ゴ
ム部材11(すなわち本体筒部11A,フランジ部11Bおよび
リップ部11C)と吸水繊維部材12,13とに対して一連に形
成されたスリット部15を備えている。スリット部15に
は、所望により、両面テープ(図示せず)が配設されて
いる。この両面テープは、地下埋設用ケーブル20を通過
せしめたのちスリット部15を閉鎖せしめる機能をなし、
結果的にスリット部15を介した地下埋設管30内への地下
水の浸入を阻止する機能をなす。
The waterproof seal member 10 has a highly water-absorbing rubber member 11 (that is, a main body tubular portion 11A, a flange portion 11B and a lip portion 11C) and a water-absorbing fiber member in order to allow the underground burying cable 20 to pass through and to be inserted into the through hole 11D. A slit portion 15 formed in series for 12 and 13 is provided. A double-sided tape (not shown) is arranged in the slit portion 15 if desired. This double-sided tape has a function of closing the slit portion 15 after passing the underground burying cable 20 ,
As a result, it has a function of preventing the infiltration of groundwater into the underground buried pipe 30 through the slit portion 15.

ここで高吸水ゴム部材11は、合成ゴム(たとえばスチレ
ンブタジエンゴム,ブタジエンゴム,クロロプレンゴ
ム,エチレンプロピレンゴムなど)に高吸水ポリマ(た
とえば住友化学社製の「スミカゲル」)を混合して作成
した高吸水ゴム材料によって形成すればよく、本体筒部
11Aにおける高吸水ポリマの混合率をフランジ部11Bおよ
びリップ部11Cにおける高吸水ポリマの混合率よりも大
きくしておけばよい。
Here, the highly water-absorbent rubber member 11 is made of a synthetic rubber (for example, styrene-butadiene rubber, butadiene rubber, chloroprene rubber, ethylene-propylene rubber, etc.) mixed with a highly water-absorbent polymer (for example, “Sumikagel” manufactured by Sumitomo Chemical Co., Ltd.). It may be made of water-absorbing rubber material, and
The mixing ratio of the highly water-absorbing polymer in 11A may be set higher than the mixing ratio of the highly water-absorbing polymer in the flange portion 11B and the lip portion 11C.

しかして防水シール装置10を地下埋設管30の開口部と地
下埋設用ケーブル20との間に配設するには、まず地下埋
設管30の開口部に対して挿通された地下埋設用ケーブル
20を、スリット部15に挿入し通過せしめることにより、
防水シール装置10を地下埋設用ケーブル20の周囲に(換
言すれば防水シール装置10の貫通孔11Dの内部に地下埋
設用ケーブル20を)配設せしめる。スリット部15に対し
て両面テープが配設されている場合には、そののち、そ
の両面テープによってスリット部15を接合し閉鎖する。
Therefore, in order to arrange the waterproof sealing device 10 between the opening of the underground burying pipe 30 and the cable 20 for underground burying, first, the cable for underground burying inserted through the opening of the underground burying pipe 30.
By inserting 20 into the slit part 15 and letting it pass,
The waterproof seal device 10 (the underground cable 20 into the through-hole 11D of the waterproof seal device 10 in other words) around the underground cables 20 allowed to arrangement. When a double-sided tape is provided for the slit portion 15, after that, the slit portion 15 is joined and closed by the double-sided tape.

次いで防水シール装置10を地下埋設用ケーブル20にそっ
て地下埋設管30の開口部方向に移動せしめ、本体筒部11
Aを地下埋設管30の開口部に押し込む。このときフラン
ジ部11Bは、地下埋設管30の開口部縁部に当接されてお
り、本体筒部11Aの内周面11Aaが地下埋設用ケーブル20
の周面を若干の間隔をおいて包囲し、かつ本体筒部11A
の外周面11Abが地下埋設管30の開口部内周面に対し実質
的に接触されている。更に本体筒部11Aの内周面11Aaに
配設された吸水繊維部材12の内周面が地下埋設用ケーブ
20の外周面に接触されており、かつ本体筒部11Aの外
周面11Abに配設された吸水繊維部材13の外周面が地下埋
設管30の開口部内周面に対し接触されている。
Next, the waterproof sealing device 10 is moved along the underground burying cable 20 toward the opening of the underground burying pipe 30 , and the main body tubular portion 11
Push A into the opening of underground pipe 30 . At this time, the flange portion 11B is in contact with the opening edge portion of the underground burying pipe 30 , and the inner peripheral surface 11Aa of the main body tubular portion 11A has the underground burying cable 20.
Encloses the peripheral surface of the main body at a slight distance, and
The outer peripheral surface 11Ab of is substantially in contact with the inner peripheral surface of the opening of the underground buried pipe 30 . Furthermore, the inner peripheral surface of the water absorbing fiber member 12 disposed on the inner peripheral surface 11Aa of the main body tubular portion 11A is in contact with the outer peripheral surface of the underground burying cable 20 , and is disposed on the outer peripheral surface 11Ab of the main body tubular portion 11A. The outer peripheral surface of the absorbed water absorbent fiber member 13 is in contact with the inner peripheral surface of the opening of the underground buried pipe 30 .

最後に、締付部材14が、リップ部11Cの周面に巻き付け
られたのち、その締付ネジ14aを回転することにより、
リップ部11Cに対して適宜に締付られ配設される。
Finally, after the tightening member 14 is wound around the peripheral surface of the lip portion 11C, by rotating the tightening screw 14a,
The lip portion 11C is appropriately tightened and arranged.

以上により地下埋設管30の開口部に対して配設された本
考案にかかる防水シール装置10は、地下水が地下埋設管
30の開口部に対して矢印で示したごとく到来し、地下埋
設用ケーブル20および地下埋設管30の開口部の内周面に
そって第1図(a)に示すように本部筒部11Aの内周面11Aa
および外周面11Abに浸入したとき、吸水繊維部材12,13
が第1図(c)に示すように直ちにその地下水を吸収して
膨張し、地下埋設管30内への地下水の浸入をその初期に
おいて十分に阻止する。
As described above, the waterproof sealing device 10 according to the present invention installed on the opening portion of the underground buried pipe 30 has
It arrives at the opening of 30 as indicated by the arrow, and along the inner peripheral surface of the opening of the underground burying cable 20 and the underground burying pipe 30 , as shown in FIG. Inner surface 11Aa
And when it penetrates into the outer peripheral surface 11Ab, the water absorbing fiber members 12, 13
Immediately absorbs the groundwater and expands as shown in FIG. 1 (c), and sufficiently blocks the infiltration of groundwater into the underground buried pipe 30 at the initial stage.

そののち防水シール装置10は、高吸水ゴム部材11の本体
筒部11A,フランジ部11Bおよびリップ部11Cが吸水し、
徐々に膨潤するので、第1図(d)に示すごとく、地下埋
設管30の開口部内周面との間の間隙を閉鎖し、結果的に
地下埋設管30内への地下水の浸入を持続的に阻止する。
このときフランジ部11Bは、本体筒部11Aに比し膨潤率が
小さく設定されているので、吸水に際して変形しても地
下埋設用ケーブル20の周面からフランジ部11Bの内周面
が離間されることがなく、地下埋設管30内へ地下水が浸
入することを十分に阻止できる。
After that, in the waterproof seal device 10 , the main body cylinder portion 11A, the flange portion 11B and the lip portion 11C of the highly water-absorbing rubber member 11 absorb water,
Since it swells gradually, as shown in Fig. 1 (d), the gap between the inner surface of the opening of the underground buried pipe 30 is closed, and as a result, the infiltration of groundwater into the underground buried pipe 30 is continuously maintained. Block to.
At this time, since the flange portion 11B is set to have a smaller swelling rate than the main body tubular portion 11A, the inner peripheral surface of the flange portion 11B is separated from the peripheral surface of the underground burying cable 20 even when deformed during water absorption. It is possible to sufficiently prevent the infiltration of groundwater into the underground buried pipe 30 .

またリップ部11Cの外周面には締付部材14が配設されて
いるので、吸水に伴なって膨潤してもフランジ部11Bお
よびリップ部11Cの内周面が地下埋設用ケーブル20の周
面から離間することを阻止でき、また地下埋設用ケーブ
20の周面に多少の歪があってもフランジ部11Bおよび
リップ部11Cの内周面が地下埋設用ケーブル20の周面か
ら離間することを同様に阻止でき、地下埋設管30内への
地下水の浸入を一層十分に阻止できる。
Further, since the tightening member 14 is arranged on the outer peripheral surface of the lip portion 11C, the inner peripheral surfaces of the flange portion 11B and the lip portion 11C are the peripheral surface of the underground burying cable 20 even if it swells due to water absorption. It is possible to prevent the inner peripheral surfaces of the flange portion 11B and the lip portion 11C from being separated from the peripheral surface of the underground burying cable 20 even if the peripheral surface of the underground burying cable 20 has some distortion. Similarly, it is possible to prevent the intrusion of groundwater into the underground buried pipe 30 more sufficiently.

更に本考案にかかる防水シール装置10は、地下水を吸収
していない状態では、地下埋設用ケーブル20と本体筒部
11A,フランジ部11Bおよびリップ部11Cの内周面との間
に若干のスペースすなわち間隙が確保されており、かつ
吸水繊維部材12の内周面が地下埋設用ケーブル20の周面
に接触するのみであるので、地下埋設用ケーブル20の熱
膨張あるいは熱収縮などに伴なうその延長方向への移動
を許容でき、併せて地下埋設用ケーブル20の撤去作業を
許容できる。
Further, the waterproof sealing device 10 according to the present invention is such that the underground burying cable 20 and the main body tube portion are in a state where the underground water is not absorbed.
A small space, that is, a gap is secured between the inner peripheral surfaces of 11A, the flange portion 11B and the lip portion 11C, and the inner peripheral surface of the water absorbing fiber member 12 only contacts the peripheral surface of the underground burying cable 20. since it is, like the thermal expansion or thermal contraction of underground cables 20 can tolerate movement in the extending direction of the companion lie, can tolerate dismantling of underground cables 20 together.

第2図を参照しつつ、本考案にかかる防水シール装置の
第2の実施例について、その構成および作用を簡潔に説
明する。
With reference to FIG. 2, the structure and operation of the second embodiment of the waterproof sealing device according to the present invention will be briefly described.

第2の実施例は、吸収繊維部材13が除去されていること
を除き、上述した第1の実施例と実質的に同一の構成を
有している。そのためここでは、説明の便宜上、同一部
材に同一符号を付して、詳細な説明を省略する。
The second embodiment has substantially the same configuration as the above-described first embodiment except that the absorbent fiber member 13 is removed. Therefore, here, for convenience of description, the same members are denoted by the same reference numerals, and detailed description thereof will be omitted.

したがって第2の実施例は、第1の実施例に比し、地下
埋設用管30の開口部内周面にそって浸入する地下水をそ
の初期に阻止する能力が若干劣る。
Therefore, the second embodiment is slightly inferior to the first embodiment in the ability to block the groundwater intruding along the inner peripheral surface of the opening of the underground burying pipe 30 at the initial stage.

(3)考案の効果 上述より明らかなように本考案にかかる防水シール装置
は、高吸水ゴム部材の本体筒部内周に吸水繊維部材を設
けたので、地下水が到来したとき、それを吸水繊維部材
が直ちに吸収して短時間で膨張し、その初期において地
下水が管路へ浸入することを阻止することができる。
(3) Effect of the Invention As is clear from the above, the waterproof sealing device according to the present invention has the water absorbing fiber member provided on the inner circumference of the main body cylindrical portion of the highly water absorbing rubber member. Can be immediately absorbed and expanded in a short time, and groundwater can be prevented from entering the pipeline in the initial stage.

また、管路開口部外に突出する高吸水ゴム部材の外部露
出部の膨潤率が小さく、しかも外部露出部外周を締付部
材にて締付けているので、地下水の吸収に際し、従来の
ように外部露出部が過度に変形することによりシール不
良を防止することができる。
In addition, the swelling rate of the externally exposed part of the highly water-absorbing rubber member protruding outside the pipeline opening is small, and the outer periphery of the externally exposed part is tightened with a tightening member, so when absorbing groundwater, it will be A defective seal can be prevented by excessively deforming the exposed portion.

さらに、本体筒部内周に吸水繊維部材が設けられている
ので、ケーブル外周面に対しては吸水繊維部材が接触す
ることになる。この吸水繊維部材は本体筒部を構成する
ゴム材料よりも圧縮性が良好で滑り易いために、ケーブ
ルの抜取り撤去作業を容易にでき、また熱膨張あるいは
熱収縮に際してもケーブルの伸縮乃至移動を許容するこ
とができる。
Further, since the water absorbing fiber member is provided on the inner circumference of the main body tubular portion, the water absorbing fiber member comes into contact with the outer peripheral surface of the cable. This water-absorbent fiber member has better compressibility and is more slippery than the rubber material that forms the main body cylinder, so the cable can be easily removed and removed, and the cable can be expanded or contracted even when it is thermally expanded or contracted. can do.

【図面の簡単な説明】[Brief description of drawings]

第1図(a)は本考案にかかる防水シール装置の第1の実
施例を示す断面図、第1図(b)は第1図(a)に示した実施
例の分解斜視図、第1図(c)(d)はともに第1図(a)に示
した実施例の動作説明のための断面図、第2図は本考案
にかかる防水シール装置の第2実施例を示す断面図、第
3図(a)(b)は従来例を示す断面図である。10 ……防水シール装置 11……高吸水ゴム部材 11A……本体筒部 11B……フランジ部(外部露出部) 11Aa……内周面 11Ab……外周面 11C……リップ部(外部露出部) 11D……貫通孔 12,13……吸水繊維部材 14……締付部材 14a……締付ネジ 15……スリット部20 ……地下埋設用ケーブル30 ……地下埋設管
FIG. 1 (a) is a sectional view showing a first embodiment of a waterproof sealing device according to the present invention, and FIG. 1 (b) is an exploded perspective view of the embodiment shown in FIG. 1 (a). FIGS. 3 (c) and 3 (d) are sectional views for explaining the operation of the embodiment shown in FIG. 1 (a), and FIG. 2 is a sectional view showing the second embodiment of the waterproof sealing device according to the present invention. 3 (a) and 3 (b) are sectional views showing a conventional example. 10 …… Waterproof sealing device 11 …… Highly water-absorbing rubber member 11A …… Main body cylinder 11B …… Flange part (externally exposed part) 11Aa …… Inner peripheral surface 11Ab …… Outer peripheral surface 11C …… Lip part (externally exposed part) 11D ... Through hole 12, 13 ... Water absorbing fiber member 14 ... Tightening member 14a ... Tightening screw 15 ... Slit portion 20 ... Underground cable 30 ... Underground pipe

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】ケーブルが挿通される管路開口部に設けら
れ、ケーブル外周と管路開口部内周間の隙間を密封する
高吸水ゴム部材を備えた防水シール装置において、 前記高吸水ゴム部材を、管路開口部内周とケーブル外周
との間に挿入される膨潤率の大きな本体筒部と、該本体
筒部に対して一体に形成され前記管路開口部外に突出す
る前記本体筒部よりも膨潤率の小さな外部露出部と、か
ら構成し、 前記本体筒部内周に吸水繊維部材を有すると共に、前記
外部露出部外周に前記ケーブルに対する締付部材を有す
ることを特徴とする防水シール装置。
1. A waterproof sealing device provided with a highly water-absorbing rubber member, which is provided at an opening of a conduit through which a cable is inserted and seals a gap between an outer circumference of the cable and an inner circumference of the opening of the conduit, wherein the highly water-absorbing rubber member is provided. A main body cylindrical portion having a large swelling ratio, which is inserted between the inner circumference of the pipeline opening portion and the outer circumference of the cable, and the main body tubular portion integrally formed with the main body tubular portion and protruding outside the pipeline opening portion. Also, an outer exposed portion having a small swelling rate is provided, and a water-absorbing fiber member is provided on the inner circumference of the main body cylinder portion, and a fastening member for the cable is provided on the outer exposed portion outer circumference.
JP11961688U 1988-09-12 1988-09-12 Waterproof sealing device Expired - Lifetime JPH0626028Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11961688U JPH0626028Y2 (en) 1988-09-12 1988-09-12 Waterproof sealing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11961688U JPH0626028Y2 (en) 1988-09-12 1988-09-12 Waterproof sealing device

Publications (2)

Publication Number Publication Date
JPH0241624U JPH0241624U (en) 1990-03-22
JPH0626028Y2 true JPH0626028Y2 (en) 1994-07-06

Family

ID=31365002

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11961688U Expired - Lifetime JPH0626028Y2 (en) 1988-09-12 1988-09-12 Waterproof sealing device

Country Status (1)

Country Link
JP (1) JPH0626028Y2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2513330Y2 (en) * 1990-01-10 1996-10-02 シーアイ化成株式会社 Stopcock for cable conduit
JP2572021Y2 (en) * 1990-09-17 1998-05-20 日本電信電話株式会社 Water stopcock at the end of the cable protection tube containing the cable

Also Published As

Publication number Publication date
JPH0241624U (en) 1990-03-22

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