JPH07116735B2 - Seal structure for the release wire insertion point in the drainage pipe - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seal structure for a release wire insertion portion of a drainage pipe.

[0002]

2. Description of the Related Art Conventionally, a vertical movement operation of an operation lever E provided on a counter surface or the like is performed by a drain plug C installed in a drain port B.
There is known a release wire F which is transmitted to the operator and raises and lowers the stopper lid C1. The release wire F is inserted into a through hole a in the peripheral wall of the drain pipe D that can be connected to the drain port B, and is arranged so as to connect the operation lever E and the drain plug C. A seal portion for preventing leakage of drainage flowing down in the drainage pipe D is formed in the through hole a in the peripheral wall of the drainage pipe D (see FIG. 1).

A conventional structure of this type of seal portion will be described with reference to FIG. The seal structure G includes an outer cylinder 100 fitted and inserted in the through hole a, a cap-shaped fixing member 200 screwed into the end of the outer cylinder 100, and a gap between the outer cylinder 100 end and the fixing member 200. The ring-shaped sealing material 300 interposed in the outer cylinder 10
0 is watertightly fitted and attached to the outer tube F1 of the release wire F, and the ring-shaped sealing material 300 is crushed by the outer end of the outer cylinder 100 and the fixing member 200, and further provided on the inner end of the outer cylinder 100. A sealing material 400 is filled between the flange 101 and the through hole a to prevent water leakage from the through hole a.

[0004]

However, according to the above-described conventional seal structure G, the outer tube F1 has an outer cylinder.
When the external fitting of 100 is performed, it is necessary to consider the smooth sliding of the sliding member F, that is, the sliding coil F2 accommodated inside the release wire F. There is a drawback in that the watertightness is weakened and the watertightness around the through hole a is reduced.

The present invention has been made in view of such conventional circumstances, and an object thereof is to sufficiently consider the smooth sliding of a sliding member accommodated inside a release wire, that is, a sliding coil. At the same time, the watertightness is more completely maintained between the outer tube and the outer cylinder, and a seal structure that is extremely excellent in preventing water leakage from the through hole is provided with a simple structure.

[0006]

In order to achieve the above-mentioned object, a first seal structure according to the present invention comprises an outer cylinder fitted and inserted into a through hole formed at a predetermined location on a peripheral wall of a drainage pipe, It is composed of a bush-shaped seal member which is externally fitted and attached to the outer tube of the release wire, and a cap-shaped fixing member which is screwed into the end portion of the outer cylinder, and the inner circumference of the outer cylinder and the outer circumference of the bush-shaped seal member are matched with each other. The bush-shaped seal member formed into a tapered shape is inserted into the outer cylinder, and the outer end of the seal member is provided with a flange-shaped seal portion interposed between the outer cylinder end and the fixing member. (Claim 1).

In the second seal structure of the present invention, the outer cylinder in the first seal structure is drained so as to protrude outward from the drainage pipe edge through a through hole that is opened at a predetermined position on the peripheral wall of the drainage pipe. It is characterized in that it is formed integrally with the pipe (Claim 2).

[0008]

According to the above construction, the bush-shaped seal member is interposed between the outer tube and the outer cylinder, and the fixing member screwed into the end of the outer cylinder moves the bush-shaped seal member inward of the outer cylinder. Since the outer cylinder inner circumference and the bush-shaped seal member outer circumference are tapered so as to urge each other, the contact surfaces of the outer tube, the bush-shaped seal member, and the outer cylinder are in close contact with each other, Further, by crushing and holding the brim-shaped seal portion of the bush-shaped seal member between the outer cylinder end portion and the fixed member, extremely high watertightness is achieved between the outer tube, the bush-shaped seal member, the outer cylinder, and the fixed member. Retained. At the same time, the bush-shaped sealing member interposed between the outer tube and the outer cylinder prevents the outer tube from being crushed and ensures the smooth slidability of the sliding coil housed inside the release wire.

Further, when the outer cylinder is formed integrally with the drain pipe, a more complete water-tight seal is provided between the through hole and the outer cylinder as compared with the means for fitting the outer cylinder into the through hole formed in the drain pipe. It is possible to omit the parts for fixing the outer cylinder to the through hole and the parts for maintaining the sealing property around the outer cylinder.

[0010]

EXAMPLES Examples will be described below. 1 to 4 show an embodiment of the seal structure according to claim 1. In FIG. 1, A is a seal structure of the present embodiment, B is a drainage opening in a washbasin, a bathtub, etc., C is a drain plug installed in the drainage outlet B, D is a drainage pipe connected to the drainage outlet B, E is an operation lever provided on the counter surface and the like, and F is a release wire connecting the drain plug C and the operation lever E, respectively.

The drain plug C comprises a support shaft C2 having a cap lid C1 mounted on the upper end thereof so as to be movable up and down by an operating portion C3.
The drainage port B is closed when the (cap lid C1) is in the lowered state, and the drainage port B is opened in the raised state so that the drainage port B is opened.

The drain pipe D comprises a drain pipe portion D1 and a connecting pipe portion D2 made of a desired metal or synthetic resin material.
The upper end side of D1 is inserted into the drainage port B, and the connecting pipe portion D2 is connected to the lower end of the drainage pipe portion D1 for piping. A through hole a for inserting the release wire F is formed at a predetermined position on the peripheral wall of the connecting pipe portion D2.

The operation lever E is vertically movably supported by a base portion E'installed on the counter surface or the like.

The release wire F is an outer tube F1 having a cylindrical shape made of a flat wire material such as a flat steel wire and a synthetic resin material such as vinyl coated on the outer peripheral surface by baking or the like, and a wire wire such as a steel wire. The sliding coil F2 is formed of a material into a coil shape and is slidably accommodated in the outer tube F1. Further, the wire F has one end connected to the lower end of the operating lever E and the other end connected to the operating portion C3 of the drain plug C, and the sliding coil F2 slides when the operating lever E is moved up and down. The operating part C3 is operated to move the stopper lid C1 up and down.

The drain plug C, drain pipe D, operating lever E,
The release wire F is not limited to those described above, and modifications within the range of well-known structures are arbitrary.

Thus, the connecting pipe portion D2 in the drain pipe D
Insert the release wire F into the through hole a provided in
The seal structure A of the present embodiment is formed between the release wire F and the through hole a.

The seal structure A has an outer cylinder 1 fitted and inserted in the through hole a, a bush-shaped seal member 2 fitted and fitted in the outer tube F1, and a cap-shaped member which is screwed into the end of the outer cylinder 1. The seal structure A including the fixing member 3 will be described in detail below with reference to FIGS.

The outer cylinder 1 is formed of a desired synthetic resin material or metal material into a cylindrical shape that can be fitted and inserted into the through hole a, and its base end outer edge abuts on the inner edge of the through hole a. Collar part to be engaged
11 is integrally provided around the flange portion 11 and the seal member 4 is interposed between the flange portion 11 and the inner edge of the through hole a so that the tip end side is projected to the outside of the connecting pipe portion D2. Insert. A screw portion 12 is engraved on the outer peripheral portion of the outer cylinder 1 projecting outwardly of the connecting pipe portion D2, and the nut member 5 is screwed into the screw portion 12 so that the outer cylinder 1 which can be fitted and inserted into the through hole a cannot be moved. Fixed to.

Further, the inner peripheral surface 13 of the outer cylinder 1 has an inner end side (a collar portion).
Form a taper shape with a small diameter on the 11 side) and a large diameter on the outer end side (protruding side).

The nut member 5 is integrally molded using a desired synthetic resin material or metal material. A spacer 5a also serving as packing is interposed between the nut member 5 and the through hole a. A contact surface 5a 'with the edge of the through hole a in the spacer 5a, and
The collar portion 11 of the outer cylinder 1 includes a collar portion 11 (sealing material 4) and a spacer 5a.
Connection pipe part D2
The arc shape follows the curved shape of (see FIG. 3).

The bush-shaped sealing member 2 is a cylindrical member integrally formed of rubber or synthetic resin, and has an outer peripheral surface 21.
Is formed in a tapered shape that matches the inner peripheral surface 13 of the outer cylinder 1 so that it can be inserted into the outer cylinder 1, and the inner circumference 22 is approximately the same as or slightly smaller than the outer tube F1 diameter of the release wire F. The outer tube F1 can be externally fitted and attached.

On the large-diameter side (outer end side) of the bush-shaped seal member 2, a brim-shaped seal portion 23 that abuts and engages with the outer end of the outer cylinder 1 is provided.

The fixing member 3 is formed of a desired synthetic resin material or metal material into a cap shape having a female screw portion 31 to be screwed into the outer peripheral screw portion 12 at the outer end of the outer cylinder 1, and its bottom wall portion is formed. An insertion hole 32 for the release wire F is opened in this position.

At the inner bottom portion of the fixing member 3, a collar-shaped seal portion 23 is provided between the fixing member 3 which is screwed into the outer end of the outer cylinder 1 and the outer end of the outer cylinder 1.
Forming a stepped portion 33 for crushing.

According to the seal structure A of this embodiment having the above structure, the bush-shaped seal member 2 is interposed between the outer tube F1 and the outer cylinder 1. The seal member 2 is an outer cylinder 1.
It is pressed inwardly of the outer cylinder 1 by the fixing member 3 which is screwed into the end portion, and the inner peripheral surface 13 of the outer cylinder and the outer peripheral surface 21 of the bush-shaped sealing member 21.
The contact surfaces of the outer tube F1, the bush-shaped seal member 2, and the outer cylinder 1 are uniformly in close contact with each other because the and are in a tapered shape. Further, the outer tube F1, the bush-shaped seal member 2, while holding the collar-shaped seal portion 23 between the outer end of the outer cylinder 1 and the stepped portion 33 of the fixed member 3 by crushing.
Extremely high watertightness is maintained between the outer cylinder 1 and the fixing member 3.

At the same time, the bush-shaped seal member 2 interposed between the outer tube F1 and the outer cylinder 1 is the outer tube F1.
The crushing of the sliding coil F2 is prevented, and the smooth sliding property of the sliding coil F2 accommodated inside the release wire F is secured.

Therefore, after sufficiently considering the smooth sliding of the sliding coil F2 housed inside the release wire F, the watertightness between the outer tube F1 and the outer cylinder 1 is made more complete, An extremely excellent sealing effect for preventing water leakage from the through hole a is achieved with a simple structure.

5 and 6 show an embodiment of the seal structure according to claim 2. 5 and 6, only the main part is shown in an enlarged manner, but the seal structure A'of this embodiment is similar to the above-described embodiment in that the drainage port B, the drainage plug C, the drainage pipe D, the operation lever E, Needless to say, it is used for a drain plug structure composed of a release wire F and the like, and since the drain plug structure is the same as that described in the above embodiment, illustration and description thereof will be omitted.

The seal structure A'of this embodiment has a drain pipe D.
The connecting pipe portion D2 in 1 is made of synthetic resin, and the outer cylinder 1'is integrally formed. Hereinafter, only the part related to the outer cylinder 1'will be described, and the description of the bush-shaped seal member 2, the fixing member 3, the release wire F, etc. will be omitted since they are the same as the above.

The outer cylinder 1'protrudes outward from a rim of a through hole a'that can be opened at a predetermined position on the peripheral wall of the connecting pipe portion D2.
It is formed integrally with the connecting pipe portion D2, and its inner peripheral surface 13 is formed in a tapered shape that matches the outer peripheral surface of the bush-shaped sealing member 2, and the sealing member 2 is inserted therein.

A screw portion 12 is engraved on an outer peripheral portion of the outer cylinder 1'projecting outwardly of the connecting pipe portion D2, and the fixing member 3 is screwed into the screw portion 12 so as to be inserted into the outer cylinder 1 '. The bush-shaped sealing member 2 is immovably fixed.

According to the seal structure A'of this embodiment having the above structure, the fixed member 3 is the bush-shaped seal member 2.
Is pressed inwardly of the outer cylinder 1 ', the outer peripheral surface 13 of the outer cylinder and the outer peripheral surface 21 of the bush-shaped seal member are in a tapered shape so as to match each other, and the outer end of the outer cylinder 1'and the fixing member 3 are stepped. Since the collar-shaped seal portion 23 is crushed and held between the portions 33, extremely high water-tightness is maintained between the outer tube F1, the bush-shaped seal member 2, the outer cylinder 1, and the fixing member 3, and at the same time, the bush is formed. The seal member 2 prevents the outer tube F1 from being crushed and ensures a smooth slidability of the sliding coil F2.

Therefore, the effect equivalent to that of the above-described embodiment in which the watertightness between the outer tube F1 and the outer cylinder 1 is more completely taken into consideration while sufficiently considering the smooth sliding of the sliding coil F2 is achieved. can get.

In addition, since the outer cylinder 1'is constructed integrally with the drain pipe D, more complete water tightness can be obtained between the through hole a'and the outer cylinder 1 ', and the outer cylinder 1'can be passed through. A part for fixing to the hole a ′ and a part for maintaining the sealing property around the outer cylinder, that is,
The seal member 4, the nut member 5, the spacer 5a, the collar portion 11 and the like in the above-described embodiment can be omitted, the above-mentioned water leakage prevention effect can be made more effective, and the number of parts can be reduced to further simplify the structure. it can.

[0035]

Since the seal structure according to the present invention is constructed as described above, extremely high watertightness is maintained between the outer tube, the bush-shaped seal member, the outer cylinder, and the fixing member, and at the same time, the release wire. Ensures smooth slidability of the sliding coil housed inside.

Therefore, similar to the conventional seal structure, if a seal material (packing) or the like is interposed between the outer cylinder and the through hole, the smooth sliding of the sliding coil accommodated inside the release wire is sufficiently considered. In the above, the watertightness between the outer tube and the outer cylinder is more completely maintained, and a very excellent sealing effect for preventing water leakage from the through hole can be achieved with a simple structure.

Further, when the outer cylinder is formed integrally with the drain pipe, it is not necessary to interpose a seal material (packing) between the outer cylinder and the through hole, and a more complete space is provided between the through hole and the outer cylinder. Watertightness can be obtained. Therefore, the above-mentioned water leakage prevention effect can be made more effective, and the number of parts can be reduced to further simplify the structure.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing an embodiment of a seal structure according to claim 1. FIG.

FIG. 2 is an enlarged view of a main part of FIG.

3 is a cross-sectional plan view of FIG.

FIG. 4 is an exploded view of FIG.

FIG. 5 is an enlarged sectional view of an essential part of an embodiment of the seal structure according to claim 2;

FIG. 6 is an exploded view of FIG.

FIG. 7 is a cross-sectional view showing a conventional seal structure.

[Explanation of symbols]

A, A ': Seal structure B: Drainage port
C: Drain plug D: Drain pipe E: Operation lever
F: Release wire F1: Outer tube F2: Sliding coil
a, a ': through holes 1, 1': outer cylinder 13: outer cylinder inner peripheral surface 2: bush-shaped seal member 21: seal member outer peripheral surface 2
3: Collar-shaped seal part 3: Fixed member

Claims (2)

[Claims] 1. An outer cylinder fitted and inserted into a through hole formed at a predetermined location on a peripheral wall of a drainage pipe, a bush-shaped seal member externally fitted and fitted to an outer tube of a release wire, and a screw on the end of the outer cylinder. And a cap-shaped fixing member to be fitted, and the bush-shaped seal member is inserted into the outer cylinder by forming a taper shape so that the inner circumference of the outer cylinder and the outer circumference of the bush-shaped seal member match each other. A seal structure for a release wire insertion portion in a drainage pipe, characterized in that a flange-shaped seal portion interposed between an outer cylinder end portion and a fixing member is provided at an end. 2. An outer cylinder integrally formed with the drainage pipe so as to project outward from the drainage pipe through a through hole opening formed at a predetermined position on the peripheral wall of the drainage pipe, and an outer fitting of the release wire to the outer tube. A bush-shaped seal member and a cap-shaped fixing member that is screw-fitted to the end of the outer cylinder. The bush-shaped seal is formed by tapering the inner circumference of the outer cylinder and the outer circumference of the bush-shaped seal member. A member is inserted into an outer cylinder, and at the outer end of the seal member, a flange-shaped seal portion is provided which is interposed between the outer cylinder end and a fixed member. A seal for a release wire insertion portion in a drainage pipe. Construction.