JP3963791B2 - Release for drain valve - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drain plug release that opens and closes a drain plug by remote operation of a release wire, and more particularly to a drain plug release provided with an opening / closing mechanism (thrust lock mechanism).
[0002]
[Prior art]
Conventionally, a drain plug release A having a shock absorber has a structure shown in FIG. 5 as an example.
In the prior art described above, the lower open portion of the housing case 200 attached to the upper edge surface (attachment surface) B of a bathtub or the like is covered with an attachment nut 201 having an opening 201a in the center so that it can be opened and closed. The outer tube 23 of the release wire 3 is attached to the lower end of the operation unit 1 arranged vertically in the housing case 200, and only the inner wire 13 is inserted into the inner case 13 so that the operation shaft 31 can be moved forward and backward. A flange 51 projecting from the upper edge of the container is brought into contact with the inside of the housing case 200, a shock absorber compression ammunition 5 is interposed between the flange 51 and the mounting nut 201, and an inner part is formed in the operation unit 1. The wire 13 is provided with a return ammunition 6.
[0003]
By the way, the release wire 3 is loaded under various circumstances.
The push button 41 is accidentally pushed while the pushing force is applied to the plug lid by stepping on the plugged state, or a fallen object is put on the plug lid while the push button 41 is being pushed. An example of this is when a load is applied.
In such a case, if no measures are taken, the inner wire 13 loses its escape and buckles.
Under such a condition, the prior art prevents the inner wire 13 from buckling because the operation unit 1 itself moves down against the spring force of the shock absorber 5 for the shock absorber. be able to.
[0004]
However, a large housing case 200 for interposing the shock absorber 5 for the shock absorber is essential, so that the equipment cost increases, and when the drain plug release A is maintained, the release wire 3 Before disassembling the operation section 1 and the drainage section at both ends, the mounting nut 201, the compression ammunition 5, and the release plug release (having the operation section and the drainage section at the end of the release wire) A It becomes necessary to disassemble, making handling during maintenance complicated.
[0005]
[Problems to be solved by the invention]
The present invention has been made in view of the above-described conventional circumstances, and the purpose of the present invention is to accidentally push the push button while the pressing force is applied to the plug lid by stepping on the plug closed state. If the load is applied to the stopper lid by a falling object while the push button is being operated, the load on the extension of the outer tube is reduced and the buckling of the inner wire is prevented. In addition, the present invention is to provide a drain plug release having a simple structure.
[0006]
[Means for Solving the Problems]
The technical means taken to solve the above object is that the inner wire protruding from the release wire inserted from one end side into the operation portion can be pushed by the operation shaft provided to the operation portion so as to be able to advance and retreat from the other end side. And a shock absorber that is provided with a compression bulge that surrounds the release wire across the flange-shaped receiving portion formed at the inner end of the outer tube in the operation portion and the operation portion closer to the drain plug than the flange-shaped receiving portion. An absorber is configured, the hook-shaped receiving portion is brought into contact with a tube abutting portion provided in the middle of the operation portion, and the inner wire is passed through the tube abutting portion so as to be able to be pushed by the operation shaft. It is a release for drain plugs characterized by being (claim 1).
[0007]
With the above means, the push button is accidentally pushed while the pushing force is applied to the plug lid by stepping on the plugged state, etc., or while the push button is being pushed. In the case where the inner wire loses refuge because the stopper lid is not pushed up due to a fallen object being loaded on the outer tube, an elastic distraction stress is generated in the outer tube, and the distraction stress is released from the compression ammunition. The shock absorber is compressed to bring the end portions of the outer tube closer to each other, thereby securing a clearance for the inner wire and preventing buckling deformation of the inner wire.
The operation portion may be small and compact as long as the operation shaft is inserted from one end side so that the operation shaft can be advanced and retracted and a release wire is inserted from the other end side.
[0008]
And the hook-shaped receiving part hooks a spring receiving seat plate that is externally inserted into the outer tube main body to the standing surface on the outer tube main body side of the thick-walled hook part formed at the open end of the outer tube, When the seat plate has a claw portion protruding into the elevation surface of the thick collar portion on the back surface thereof, the rigidity of the thick collar portion and the bite portion are encroached. Combined with the rigidity of the stable spring receiving seat plate by the biting and fixing of the seat plate with the claw portion, the one end portion of the shock absorber (compression ammunition) is stably supported (claim 2).
[0009]
The operating portion is provided vertically on a horizontal mounting surface, and an inner wire is surrounded between the operating shaft and the tube abutting portion, and a return ammunition is interposed in the vertical direction. The part is also effective when it has a bullet guide part composed of a concave part that guides the lower end side of the return bullet machine through a clearance so as to be extendable and contractible.
In general, a drain plug release has an operation unit mounted vertically on the upper edge surface (mounting surface) of a container such as a bathtub or a basin, and is returned to the operation unit side as well as the drainage unit side. The push button at the distal end of the operating shaft is returned to a height position that is the same (slightly lower) as when closing (see FIG. 1) when opening (see FIG. 3). The return ammunition in the operation unit interferes with the inner wire by avoiding the end of the contact side, that is, the lower end side from being loosely fitted to the ambulatory guide unit so as to extend and move in a direction perpendicular to the inner wire. To be prevented.
[0010]
And the operation part consists of the cylindrical division body divided into two in the length direction, this division body is assembled by the connection of mutual end parts, and the peripheral part is the tube abutment part. It is suitable for supporting the tube abutting portion if it is sandwiched and attached (Claim 4).
Here, as the connection, screwing is suitable.
[0011]
Furthermore, it is preferable that the tube abutting portion has a configuration in which a clamping collar portion is formed on the periphery of the bullet guide portion.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention for a drain plug will be described with reference to the drawings. In the drawings, symbol A is a drain plug release.
[0013]
The drain plug release A has a well-known configuration including an operation unit 1, a drainage unit 2, and a release wire 3 that connects the operation unit 1 and the drainage unit 2. It is vertically attached to the upper edge surface (mounting surface) B.
[0014]
The operation unit 1 includes two cylindrical divided bodies 11 and 21 that are divided in the length direction, that is, the vertical direction. Below, the cylindrical division body 11 is called an upper half part, and the cylindrical division body 21 is called a lower half part.
The upper half portion 11 has a flange portion 111 that is hooked and attached to the upper end portion as an attachment surface B on the upper edge surface of a bathtub or the like, and a male screw 111a is screwed to the peripheral surface of the lower end portion.
The lower half 21 is integrally formed with a threaded cylinder 211 in which a female thread 211 a into which the male thread 111 a is threaded is screwed on the inner peripheral surface, and the male thread 111 a and the threaded cylinder 211 are screwed together. Accordingly, the upper half 11 and the lower half 21 are connected to each other so as to be disassembled.
The connection between the upper half portion 11 and the lower half portion 21 may be a snap fit or other structure.
[0015]
Reference numeral 4 denotes a tube abutting portion. As shown in FIG. 2, as shown in FIG. 2, a bullet guide portion 14 formed of a concave portion fitted into the inner peripheral surface of the lower half portion 21, and an open edge of the bullet guide portion 14. Are formed integrally with a synthetic resin, and a through hole 142 of the inner wire 13 is opened at the center of the bottom of the bullet guide 14. It is perforated.
[0016]
One end of the release wire 3 on the operation unit 1 side is inserted from the lower end of the lower half part 21 into the inside, and only the inner wire 13 is inserted into the upper half part 11 from the upper end through the through hole 142. The outer tube 23 is connected to the inner end of the operating shaft 31 and the inner end of the outer tube 23 is brought into contact with the lower surface of the bullet guide part 14, and the release is between the inner end of the outer tube 23 and the lower end of the lower half 21. A shock absorber 5 consisting of a compression ammunition surrounding the wire 3 is interposed.
A push button 41 is provided at the upper end of the operation shaft 31.
[0017]
A flange-shaped receiving portion 231 is formed at the inner end of the outer tube 23.
As shown in FIG. 2, the flange-shaped receiving portion 231 is an upright surface on the outer tube main body (outer tube between the thick flange portions) 23 ′ side in the thick-walled flange portion 231 a formed at the open end of the outer tube 23. A spring receiving seat plate 231b that is externally fitted to the outer tube main body 23 ′ is hooked.
[0018]
The thick flange portion 231a is circumferentially provided in a flange shape with a thickness of about 2 mm, and the claw portion 231b ′ protruding in a ring shape on the back surface of the spring receiving seat plate 231b is bitten into the vertical surface and latched. The rigidity of the thick flange portion 231a itself and the rigidity of the seat plate 231b with the claw portion that is stabilized by biting into the flange portion 231a itself stabilizes one end portion of the shock absorber (compression ammunition) 5. And can be supported.
[0019]
An operation shaft 31 is inserted into the upper half 11 from one end side, that is, the upper end side so as to be able to advance and retreat, and the inner end of the inner wire 13 of the release wire 3 inserted from the lower end side of the upper half portion 11 is operated. The inner wire 13 is connected to the inner end of the shaft 31 so that the inner wire 13 can be pushed by the advancement and retraction of the operation shaft 31, and the inner wire 13 is surrounded between the connecting portion and the bottom of the bullet guide portion 14 formed of the concave portion. A return ammunition 6 is interposed.
As shown in FIG. 2, the return ammunition 6 is loosely fitted with a clearance between the lower end side and the inner peripheral surface of the ammunition guide portion 14 formed of a recess.
This prevents the return ammunition 6 from largely moving in the direction orthogonal to the inner wire 13 so that the return ammunition 6 does not prevent the inner wire 13 from being prevented.
[0020]
In addition, the drainage part 2 which is the other end side of the release wire 3 fixes the other end of the outer tube 23 to the lower end of the guide tube 7 installed in the wick of the drainage port 100, and is well-known. 8 is inserted so as to be able to advance and retreat from the upper end side of the guide cylinder 7, and the support shaft 18 can be pushed on the other end side of the inner wire 13 entering the guide cylinder 7. A thrust lock mechanism (ratchet mechanism) S is interposed between the cylinder 7 and a return elastic machine 9 that urges the support shaft 18 in the closing direction. Pushing downward against the spring force of the machine 9 and locking it to the locking teeth on the inner surface of the guide tube 7 (see FIG. 3), the support shaft 18 is forced by the spring force of the return bullet machine 9 when closing. Accordingly, the stopper lid 8 is fitted to the edge of the drain port 100 (see FIG. 1).
[0021]
In the drain plug release A configured as described above, the operation shaft 31 and the push button are pushed by pushing the inner wire 13 toward the operation unit 1 side by the spring force of the return ammunition 9 on the drainage unit 2 side when the plug is closed. 41 is pushed to the return position (see FIG. 3). At this time, the return ammunition 6 on the operation unit 1 side is fully extended (see FIG. 1). When the push button 41 is pushed in this state, the return ammunition 6 and 9 on the operation unit 1 side and the drainage unit 2 side is compressed, the inner wire 13 is lowered, the other end side is raised, and the support shaft 18 is raised. And open it. The push button 41 at the time of opening is returned to a position slightly lower than that at the time of closing by the restoring force of only the return ammunition 6 on the operation unit 1 side (see FIG. 3).
Then, the push button 41 is accidentally pushed while the pushing force is applied to the plug lid 8 by stepping on the closed state or the plug lid 41 is in the middle of pushing the push button 41. When a load is applied to the fallen object M, the shock absorber 5 is compressed as shown in FIG. The buckling deformation of the inner wire 13 is prevented without imposing a burden on the inner wire 13.
[0022]
【The invention's effect】
Since the present invention is configured as described above, the push button is erroneously pushed or depressed while the push button is pressed against the plug lid by stepping on the closed state or the push button is being pushed. Even if the plug lid is loaded with a fallen object and the plug lid is not pushed up and the inner wire loses its escape, the inner wire escape is secured to prevent buckling deformation of the inner wire and the outer The load on the tube elongation can be reduced and the durability can be improved.
Moreover, unlike the prior art, there is no need to prepare a housing case for the operating part for interposing a shock absorber (compression ammunition), and it does not become a large scale, and it is a mounting nut other than the drain plug release for maintenance. The compression ammunition is not disassembled, maintenance is not complicated, and it is small and compact.
[0023]
Then, as a configuration for supporting one end side of the return ammunition serving as a shock absorber, the outer tube main body side is vertically fitted into the outer tube main body at the wall-shaped flange portion formed at the open end of the outer tube, and the spring receiver is inserted. Since the structure in which the claw portion on the back surface of the seat plate is bitten and latched is adopted, one end portion of the shock absorber can be stably and reliably supported with respect to the outer tube while the structure is simple.
[0024]
In addition, as a tube abutment portion that is a receiving portion at the lower end of the return ammunition that surrounds the inner wire and is interposed between the operation shaft and the recess that guides the expansion and contraction on the lower end side of the return ammunition through the clearance. Therefore, it is possible to prevent the return ammunition from sliding in the orthogonal direction of the return ammunition and to prevent the return ammo in the operation part from interfering with the inner wire. There is no fear that the bullet will rub against the inner wire and generate metal noise.
[0025]
In addition, the operating portion is formed of a cylindrical divided body that is divided into two in the length direction, and the divided body is assembled by connecting ends of each other. It is designed to be sandwiched and set, and it is easy to attach the tube abutting portion having the bullet guide portion to the divided body.
[Brief description of the drawings]
FIG. 1 is a front sectional view showing a closed state, with an intermediate omitted.
FIG. 2 is an enlarged cross-sectional view of the main part.
FIG. 3 is a front sectional view showing an opened state, with the middle omitted.
FIG. 4 is a front cross-sectional view showing a state where a compression device for a shock absorber is compressed, with an intermediate omitted.
FIG. 5 is an enlarged cross-sectional view of a main part of a conventional drain plug release.
[Explanation of symbols]
A: Release for drain plug 1: Operation part 31: Operation shaft 3: Release wire 13: Inner wire 23: Outer tube 231: Spear-shaped receiving part 41: Push button 5: Shock absorber 4: Tube contact part 231a: Wall thickness鍔 part 23 ′: outer tube main body 231 b: spring receiving seat 231 b ′: claw part 6: return ammunition (operation part side) 14: ammunition guide part 11, 21: divided body (upper half part, lower half part) 2: Drainage section 9: Return ammunition (drainage section side) 141: Clamping collar

Claims (5)

An inner wire protruding from a release wire inserted from one end side into the operation portion can be pushed by an operation shaft provided to the operation portion so as to be able to advance and retreat from the other end side, and is formed on the inner end of the outer tube in the operation portion. A shock absorber is formed by interposing a compression ammunition that surrounds the release wire between the shape receiving portion and the inside of the operation portion closer to the drain plug than the hook shape receiving portion, and the hook shape receiving portion is arranged in the operation portion. The drain plug release according to claim 1, wherein the inner wire is in contact with a tube abutting portion provided in the middle of the tube so that the inner wire passes through the tube abutting portion and can be pushed by the operation shaft. The hook-shaped receiving portion hooks a spring receiving seat plate that is externally inserted into the outer tube main body to a standing surface on the outer tube main body side of the thick-walled hook portion formed at the open end of the outer tube, and the spring receiving seat 2. The drain plug release according to claim 1, wherein the plate has a claw portion projecting on the rear surface of the thick flange portion so as to bite and latch. The operating portion is provided vertically on a horizontal mounting surface, and surrounds an inner wire between the operating shaft and the tube abutting portion and interposes a return ammunition in the vertical direction. 3. The drain plug release according to claim 1 or 2, further comprising a bullet guide part comprising a recess for guiding the lower end side of the return bullet through the clearance. The operation portion is composed of two cylindrical divided bodies divided in the length direction, the divided bodies are assembled by connecting the end portions to each other, and the tube abutting portion has the same connection and a peripheral portion. 4. The drain plug release according to claim 3, wherein the release plug is sandwiched and attached. The drain plug release according to claim 4, wherein the tube abutting portion has a configuration in which a clamping collar is formed on the periphery of the bullet guide portion.

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