JPH0960073A - Drain valve device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attach/detach a mechanical box by a single operation such as pushing in the mechanical box from above or pulling this out upward without using any tools and to automatically detach the mechanical box which is released when a load of a specified level is applied from above. SOLUTION: In a drain valve device having a mechanical box incorporating a thrust locking mechanism in the axial center of a drain cylinder 21 in a drain part 2 arranged in the bottom part 11 of a bath tub 1 for alternately opening and closing the valve by raising/lowering a valve lid 23 following the operation of the thrust locking mechanism, a supporting cylinder 24 of the mechanical box 22 is provided in the draining cylinder 21. An edge part 221 is brought into contact with the upper surface 241 of the supporting cylinder 24 and the mechanical box 22 is fitted in the supporting cylinder 24. A locking means A for elastically locking the mechanical box 22 is constituted of the supporting cylinder 34 and the mechanical box 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to drainage in which a lid is lifted and lowered by the operation of a thrust lock mechanism provided on the shaft core of a drain in a water tank such as a bathtub and a washbasin to alternately open and close the drain. The present invention relates to a stopper device.

[0002]

2. Description of the Related Art Conventionally, in this type of drain plug device, a remote control is used to remotely open and close the drain by using a thrust lock mechanism provided on the drain cylinder by remote control of an operating portion. The operation type and the direct operation type in which the thrust lock mechanism is operated by directly pushing the stopper lid to alternately move up and down to open and close the plug (Actual fair 4-2894).
No. 8). In both the remote control type and the direct control type, the mechanical box is attached to a bracket 101 provided on the drain 100 by screwing an edge 103 around the mechanical boss 102, as shown in FIGS. This attachment is done before shipment from the factory. In the case of the remote control type, as shown in FIG.
05 A bottom end of a mounting cylinder 110 in which a mounting seat 109 is provided in an operation cylinder 108 in which a rear end and one end of the release 106 are internally connected and a return spring is installed, and the mounting seat 109 is penetratingly mounted on a tank wall. It is screwed to.

[0003]

However, since the inside of the drain pipe and the inside of the mounting cylinder are narrow and cramped, it is troublesome to mount the mechanical box 102 and the operation cylinder 108 for remote operation even if a tool is used. The screws fall and cause troublesome work. Further, as shown in FIGS. 9 and 10, in the bathtub, while the drainage joint 111 is attached to the drainage pipe 100, the mechanical box 102 provided in the drainage pipe 100 and the operation pipe are connected by the release 106, and the release 106 is attached to the attachment pipe 110. The product is shipped with a structure inserted into a guide pipe 113 connected to the drain joint 111, and is manually transported to the construction site for installation. At this time, the joint root portion of the drain joint 113, which faces the lower drainage port, may be buckled due to a load such as a collision due to the entry of an obstacle, and it is necessary to improve in consideration of this point.

The present invention has been made in view of the conventional circumstances, and the purpose thereof is to attach and detach the mechanical box by a one-touch operation such as pushing the mechanical box from above without using any tools and pulling it upward. It is an object of the present invention to provide a drain plug device in which the attachment can be released and the mechanical box can be automatically removed when a load more than a predetermined amount is applied from below. Still another object is to provide a drain plug device for remote operation in which the operation tube can be attached by the same one-touch operation as described above.

[0005]

The technical means taken to achieve the above-mentioned object is to provide a mechanical box having a thrust lock mechanism built in the shaft core of a drainage cylinder, and to operate the thrust lock mechanism. In a drain plug device in which the lid is raised and lowered by means of opening and closing alternately, a support cylinder for a mechanical box is provided in the drain cylinder, and an edge portion is brought into contact with the upper surface of the support cylinder to support the support cylinder. The gist is that the mechanical box is inserted into the mechanical box and the elastic means locks the mechanical box between the support cylinder and the mechanical box. According to a second aspect of the present invention, the operation of the thrust lock mechanism is controlled by a remote operation of an operation unit that is connected via a release, and the operation unit has a bottomed cylindrical mounting cylinder that is fixed through the mounting body. And an operating body housed in the mounting cylinder so as to be movable back and forth, and a return spring for the operating body that accommodates the operating body housed movably inside with the rear end of the support shaft provided in the operating body connected to one end of the release. And an operating tube containing
The operating cylinder has a positioning projection on its peripheral surface that abuts on the bottom of the mounting tube, and the mounting tube has an insertion support tube on which the operating tube is inserted, and the positioning projection is mounted on the mounting tube. The gist of the present invention is that the locking means that elastically locks the bottom of the cylinder is formed between the operation cylinder and the insertion support cylinder. According to a third aspect of the present invention, the locking means according to the first aspect includes a convex portion projecting inside an elastic piece formed by cutting the rear half portion of the support cylinder in the axial direction at a plurality of circumferential positions, and the convex portion. The gist of the present invention is that the groove is formed in the mechanical box with a depth adapted to the convex shape of. According to a fourth aspect of the present invention, the fixing means according to the second aspect includes a convex portion projecting inside an elastic piece formed by cutting the rear half portion of the insertion support cylinder in the axial direction at several points in the circumferential direction, and the convex portion. The gist of the present invention is that the operation cylinder is formed with a groove portion having a depth adapted to the convex shape of the portion.

According to the above technical means, the following effects are achieved. According to the technical means of claim 1, the mechanical box is stably supported by the support cylinder by the elastic locking force of the elastic locking means formed between both the mechanical box and the support tube. Then, when an obstacle during transportation collides with a base portion of the release connecting to the mechanical boss from below and a load larger than the elastic locking force is applied, the mechanical box is automatically disengaged from the support cylinder. According to the technical means of the second aspect, the operating cylinder becomes the insertion support cylinder by the elastic locking force of the elastic locking means configured between both the insertion support cylinder and the operation cylinder fitted therein. Supported. Further, according to the technical means of claim 3, even when the edge portion is brought into contact with the upper surface of the support cylinder and the mechanical box is inserted into the support cylinder, the convex portion of the support cylinder is locked in the groove portion of the mechanical box. However, since the convex portion has a shape that matches the groove portion, no load is applied to the elastic piece, and the elastic locking force is generated in the elastic piece only when the force for pulling out to the mechanical box is applied. According to the technical means of claim 4, even when the positioning projection is brought into contact with the bottom of the mounting cylinder and the operation cylinder is fitted into the insertion support cylinder, the projection of the insertion support cylinder has the groove of the operation cylinder. Since the convex part is shaped to fit with the groove when locked, the elastic piece is not loaded, and the elastic locking force is generated on the elastic piece only when the force that pulls out to the operating tube is applied. To do.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 5, the thrust lock mechanism (not shown) incorporated in the drainage section 2 is operated by remote control of the operation section 3 via the release R in the bathtub 1 to alternately raise and lower the drain plug. The figure shows a remote-operated drain plug device that is opened and closed.

As shown in FIG. 2, the drainage part 2 penetrates the opening of the bottom part 11 of the bathtub 1 and is attached to the shaft core of a drainage pipe 21 which is attached so as to sandwich the joint fitting 20 and the bottom part 11 into the drainage pipe 21. A support cylinder 24 integrally formed with the drain cylinder 21 is provided by an arm (not shown) having a diameter smaller than the inner diameter of the drain cylinder 21 and protruding from the inner surface of the drain cylinder 21, and the mechanism including the thrust lock mechanism built in the support cylinder 24. The box 22 is fitted and the mechanical box 22 is inserted between the support cylinder 24 and the mechanical box 22.
The locking means A for elastically locking the mechanical box 22 is fixed to the drain cylinder 21 by the locking force of the locking means A.

As shown in FIGS. 2 and 3, the locking means A axially cuts the rear half (lower half) of the support cylinder 24 to form elastic pieces 242 at several positions in the circumferential direction. While the convex portion 243 is provided at the inner tip of the elastic piece 242, the groove portion 222 facing the convex portion 243 at the tip of the elastic piece 242 is circumferentially provided on the peripheral side surface of the mechanical box 22, and the convex portion 243 is provided.
Is fixed by being locked in the groove 222. Specifically, the groove portion 222 is formed in a circumferentially annular recess with a depth and a wide dimension that match the convex shape of the convex portion 243, and the edge portion 221 of the mechanical box 22 is formed on the upper surface 241 of the support cylinder 24. Mechanical box 2 until it abuts
2 is inserted into the support cylinder 24, the convex portion 243 becomes the elastic piece 24.
2 is guided by the expansion deformation of the groove 2 and enters the groove portion 222 to come into contact with the lower edge portion of the groove 222 to hold the mechanical box 22 immovable upward. This allows the mechanical box 22
No tools or the like are required at the time of attachment / detachment, and the mechanical box 22 can be attached and detached by one-touch work of holding it by hand and pushing it in to attach it, and pulling it out to remove it.

As shown in FIGS. 1 and 4, the operating portion 3 is arranged so as to be operable from the inside of the bathtub 1 at a position near the upper edge surface in the middle portion of the short side wall 12 of the bathtub 1 which is an attachment body. There is. The operating portion 3 is a bottomed cylindrical mounting cylinder 31 mounted so as to sandwich the opening edge of the short side wall 12 with the joint fitting 30, and is housed in the mounting cylinder 31 so as to be able to move forward and backward. The operating body 32, an operating cylinder 34 connected to the operating body 32, and an insertion support cylinder 35 which is integrally formed with the mounting cylinder 31 and into which the operating cylinder 34 is inserted are provided. The operation body 32
Is accommodated in the mounting cylinder 31 so as to be able to move forward and backward, and the support shaft 33 is provided so as to project along the axial center toward the direction of the insertion support cylinder 35. While being connected to one end, the return spring S interposed in the operation cylinder 34 is always urged in the direction of returning. The operation cylinder 34 is provided with a positioning projection 342 around the bottom 311 of the mounting cylinder 31, and is fitted into the insertion support cylinder 35 and is formed between the operation support cylinder 34 and the insertion support cylinder 35. It is elastically fixed to the mounting cylinder 31 by the fixing means B.

As shown in FIGS. 4 and 5, the fixing means B is formed by cutting the rear half of the insertion support cylinder 35 in the axial direction to form elastic pieces 351 at several positions in the circumferential direction. 35
1 is provided with a convex portion 352 at the inner tip thereof, while the convex portion 35 of the elastic piece 351 is circumferentially arranged in the circumferential direction of the operating cylinder 34.
A groove 341 having a depth adapted to the convex shape of No. 2 is provided, and the convex 352 is fixed by being locked in the groove 341. In detail, the groove portion 341 is formed in the convex portion 352.
Is formed in a ring shape in a circumferential direction with a depth and a wide dimension adapted to the convex shape of the operating cylinder 34 in the insertion supporting cylinder 35 until the positioning convex portion 342 contacts the bottom 311 of the mounting cylinder 31. At the time of insertion, the convex portion 352 has the elastic piece 35.
1 is guided by the expansion deformation of No. 1 and enters the groove portion 341, abuts on the rear edge of the groove 341, and the operation cylinder 34 is fixed to the mounting cylinder 31. As a result, it is possible to remove the operation cylinder 34 with one touch without holding a tool or the like and holding the operation cylinder 34 by hand to push it in to attach it and pull it out. In this embodiment, the waterproof seal C is interposed between the bottom 311 of the mounting cylinder 31 and the operation cylinder 34. Therefore, in reality, when the positioning protrusion 342 comes into pressure contact with the waterproof seal portion C, as described above, the protrusion 352.
Enters the groove 341 and contacts the rear edge thereof.

FIG. 6 shows another embodiment of how the operating section 3 is attached. The operation section 3 is attached to the upper edge surface 13 of the bathtub 1, and the operation body 32 is operated from above.
The operation portion 3 is provided with a fixing means B similar to the structure shown in FIGS. 4 and 5, and the operation tube 34 is attached in the same manner as in the case shown in FIGS. The reference numerals are attached and the description is omitted.

FIG. 7 shows another embodiment of the locking means A, in which a mountain-shaped spring S1 for elastically locking the tip end of the support cylinder 24 in the drainage section 2 is provided in the circumferential direction of the outer peripheral surface of the operation cylinder 22. The locking means A is formed by attaching the locking means at several places.

Further, FIG. 8 shows a direct-operated drainage plug device which opens and closes by alternately pushing up and down the stopper lock 23 to activate and lower the thrust lock mechanism (Japanese Utility Model Publication No. 4-28948). ) To the same locking means A as in FIG.
In the embodiment shown in FIG. 2, the mounting method of the mechanical box 22 is the same as that shown in FIG.

[0015]

As described above, according to the present invention, the engaging means for elastically engaging between the support cylinder provided on the shaft core of the drainage cylinder and the mechanical box is constructed. The mechanical box is supported by an elastic locking force, and when a load larger than the elastic locking force is applied from below, the mounting is released and the mechanical box is automatically disengaged from the support cylinder. Therefore, the mechanical box can be attached or removed by a one-touch operation such as pushing in against the elastic force of the locking means from above without pulling a tool or pulling it upward. Is simple. Moreover, in the case of a remote control type, an obstacle during transportation collides with the root part of the release connection to the mechanical box, and the mechanical box will automatically disengage if a load greater than the elastic locking force is applied,
Buckling of the release can be prevented in advance. Furthermore,
When the locking means that elastically locks in the remote control type is configured between the operation tube and the insertion support tube, the operation tube is attached by one-touch operation without using a tool as in the case of the mechanical box. It is possible and easy to install. In addition, the protruding parts protruding from the elastic pieces of the support cylinder and the insertion support cylinder are shaped to fit in the groove formed in the mechanical box and the operation cylinder in a locked state, so that the load is not applied in the mounted state. Instead, the elastic function of the elastic piece can be maintained permanently for a long period of time, and durability can be greatly improved, as compared with the case where the elastic locking force always acts on the groove portion.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a drainage unit.

FIG. 3 is a sectional view taken along the line (3)-(3) in FIG. 2;

FIG. 4 is an enlarged cross-sectional view of an operation unit.

5 is a sectional view taken along line (5)-(5) in FIG.

FIG. 6 is an enlarged vertical sectional view of an essential part showing another example of a mounting form of the operation part.

FIG. 7 is a vertical cross-sectional view showing another example of the locking means.

FIG. 8 is a vertical cross-sectional view showing another embodiment of the drain plug device.

FIG. 9 is a vertical cross-sectional view showing a conventional attachment structure of a drainage unit in a remote control type.

FIG. 10 is a vertical cross-sectional view showing a conventional mounting structure of a remote control operation unit.

FIG. 11 is a vertical cross-sectional view showing a conventional attachment structure of a drainage portion in a direct operation type.

[Explanation of symbols]

1: Bathtub 2: Drainage part 3: Operating part R: Release 21: Drainage box 22: Mechanical box 23: Stopper lid 24: Supporting tube 31: Mounting tube 32: Operating body
33: Support shaft 34: Operation tube A: Locking means B: Fixing means
35: Insert support cylinder 222, 341: Groove portion 243, 352: Convex portion

Claims (4)

[Claims] 1. A drain plug device in which a mechanical box having a built-in thrust lock mechanism is provided on the axis of a drain cylinder, and the lid is raised and lowered by the operation of the thrust lock mechanism to open and close alternately. A support box for the mechanical box is provided in the drain tube, the edge portion is brought into contact with the upper surface of the support tube to fit the mechanical box into the support tube, and the mechanical box is elastic between the support tube and the mechanical box. A drain plug device, which comprises a locking means for mechanically locking. 2. The operation of the thrust lock mechanism is controlled by a remote operation of an operating portion that communicates via a release, and the operating portion has a bottomed cylindrical mounting that is fixed through the mounting body. A cylinder, an operating body housed in the mounting cylinder so as to be able to move forward and backward, and a rear end of a support shaft provided in the operating body housed movably in the state of being connected to one end of the release and a return for the operating body. An operating cylinder accommodating a spring, the operating cylinder having a positioning projection on its peripheral surface that abuts on the bottom of the mounting cylinder, and the mounting cylinder has an insertion support cylinder into which the operating cylinder is fitted. A fixing means for elastically fixing the positioning convex portion in contact with the bottom of the mounting cylinder between the operation cylinder and the insertion support cylinder. The drain plug device according to 1. 3. The engaging means adapts to a convex portion projecting on the inside of an elastic piece formed by cutting the rear half portion of the support cylinder in the axial direction at several points in the circumferential direction and the convex shape of the convex portion. The drain plug device according to claim 1, wherein the drain plug device is formed with a groove portion that is recessed in the mechanical box with a different depth. 4. The projection is provided on the inside of an elastic piece formed by cutting the latter half of the insertion support cylinder in the axial direction at several points in the circumferential direction by the fixing means, and conforms to the convex shape of the projection. The drain plug device according to claim 2, wherein the drain plug device is configured with a groove portion that is recessed in the operating cylinder at the depth that is set.