JPH10166252A - Valve seat polishing tool for water plug - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide such a valve seat polishing tool as being capable of polishing a valve seat for a water plug mainbody and greatly extending the life of the water plug. SOLUTION: A valve seat polishing tool has a columnar spindle 4, a handle 2 fixed to one end of the spindle 4, a thin columnar brace 11 fixed to the other end of the spindle 4 with the center axis corresponding thereto, a columnar elastic body 8 provided on the end face in opposition to the spindle 4 side of the brace 11 with the center axis corresponding thereto, a water-proof circular polishing sheet 9 mounted on the end face in opposition to the brace 11 side of the elastic body 8 with the center corresponding thereto in a demountable manner, a cap nut 6 threadable to the outer periphery of a spindle insert cylinder 23 for the water plug mainbody 21 to slidably insert the spindle 4 into a center hole therein and a cylindrical guide 7 protruded on the outer periphery of the spindle 4 on the brace 11 side of the cap nut 6 with the center axis identical therewith in such a manner that the outer diameter approximately corresponds to the inner diameter of a female screw 26 on the inner periphery of the spindle insert cylinder 23 for the water plug mainbody 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a valve seat polishing tool for smoothly polishing a valve seat (a portion for receiving a valve such as a packing or the like that moves up and down for flow rate adjustment; the same applies hereinafter) of a water tap main body. It is about.

[0002]

2. Description of the Related Art A water tap is generally a cylindrical body (not shown) attached to a discharge end of a water pipe, and a circular hole for limiting a flow path for forming a valve inside the body. A ring-shaped valve seat provided around the hole, a packing made of rubber or the like for adjusting a flow rate according to a distance from the valve seat, a cylindrical spindle supporting the packing so as to be able to reciprocate in the direction of the valve seat. Etc. The spindle is projected from a spindle insertion tube penetrating the main body so that the reciprocating motion of the spindle can be operated from the outside, and a handle is attached to the projected end. Further, by screwing a male screw provided on the side surface of the spindle and a female screw provided on the inner surface of the spindle insertion tube, the rotational motion of the spindle is converted into a reciprocating motion in the axial direction, and the spindle, that is, the packing is valved. It is possible to reciprocate in the seat direction.

[0003] In the water tap having the above structure, the spindle is turned by the handle, the spindle is moved in the direction of the valve seat, and the packing is pressed against the valve seat to stop the outflow of water. When water leakage occurs in such a tap, water leakage is usually prevented by replacing packing such as top packing.

[0004]

If the above-mentioned water leak from the faucet is left undisturbed, the valve seat is scraped off at the flow path portion of the water formed in the gap between the valve seat and the packing, and a streak like thin hair is formed. It has been found that the valve seat is relatively easily roughened due to the radial formation of the grooves. If the valve seat of such a faucet is rough or scratched, even if the packing is replaced, there is a gap due to the unevenness of the valve seat, and the effect of stopping water deteriorates. ,
The packing must be pressed strongly against the valve seat.
In this case, the packing deteriorates in a short period of time, and it becomes necessary to frequently replace the packing. Therefore, from the viewpoint of maintenance of the faucet, against water leakage due to the above-mentioned scratches on the valve seat, etc.
It is necessary to consider measures.

[0005] On the other hand, in the past, when such a flaw in the valve seat became deep, it was necessary to replace the faucet set. It is difficult to replace such taps, especially the vertical taps for basins, because of the narrow mounting position, and the parts other than the valve seat are often healthy, so that economical efficiency is low. But there was an inconvenience.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a valve seat polishing tool for polishing a valve seat of a water tap main body to dramatically extend the life of the water tap.

[0007]

SUMMARY OF THE INVENTION A valve seat polishing tool for a water tap according to the present invention comprises: a) a cylindrical spindle; b) a handle fixed to one end of the spindle; and c) another end of the spindle. A thin cylindrical receiver fixed with its central axis coincident with (which means an end face opposite to the one end face); and d) a central axis at an end face of the receiver opposite to the spindle side. A cylindrical elastic body attached in conformity with e)
A circular water-resistant abrasive paper detachably provided with its center aligned with the end face of the elastic body opposite to the receiving side, and f) the spindle is slidably fitted into a central hole, and a water tap is provided. A cap nut that can be screwed onto the outer peripheral surface of the spindle insertion tube of the main body,
g) An inner diameter of a female screw provided on the inner peripheral surface of the spindle insertion tube of the water faucet main body by projecting from the cap nut on the outer peripheral surface of the spindle on the receiving side with the same central axis. (Meaning the minimum diameter formed by the screw thread) and a cylindrical guide substantially matching the same. Here, the spindle insertion tube of the water tap main body is, as described above, a cylindrical hole into which the spindle holding the packing so as to be able to reciprocate in the valve seat direction is inserted into the water tap main body.
More specifically, a spindle provided with packing at the tip is inserted into the spindle insertion tube, and a female screw provided on the inner peripheral surface of the spindle insertion tube and a male screw provided on the outer peripheral surface of the spindle are screwed together to thereby form the spindle. The spindle is rotated by manipulating a portion (usually a handle or the like provided here) protruding outside of the spindle insertion tube so that the spindle and the packing at the tip thereof can reciprocate in the valve seat direction. . It is an object to adjust the flow rate by changing the distance between the valve seat and the packing as described above.

According to the water tap valve polishing tool of the present invention,
The valve seat is polished by inserting a spindle having water-resistant abrasive paper attached to the tip thereof through an elastic body and a receiver into the spindle insertion tube of the water faucet body and screwing a cap nut with the outer peripheral surface of the spindle insertion tube. The tool can be attached to the faucet body. Usually, the center axis of the spindle insertion tube is
Since it is perpendicular to the surface formed by the valve seat and passes through the center of the valve seat, the water-resistant abrasive paper and the valve seat overlap with each other when the valve seat polishing tool is attached to the faucet main body.
Therefore, by gripping the handle fixed to the end face of the spindle and rotating it while slightly pressing it in the valve seat direction,
Water-resistant abrasive paper can polish the valve seat and remove rough skin and the like.

The valve seat is polished with water-resistant abrasive paper. An elastic body is provided between the water-resistant abrasive paper and the spindle. For this reason, even if there is a change in the pressing force of the spindle against the valve seat or a deviation in the pressing direction during polishing by the present valve seat polishing tool, the change is reduced by the elasticity of the elastic body, and the polishing portion and the polishing amount become uneven. Can be prevented. As a result, the valve seat can be polished horizontally and smoothly by a simple and easy operation. In addition, when the water-resistant abrasive paper is clogged and loses the polishing effect due to crushing or the like, only the water-resistant abrasive paper needs to be replaced, which is excellent in economy and handling. In view of the material hardness of the valve seat of the faucet, the polishing force of the water-resistant abrasive paper used for the valve seat polishing tool of the present invention is optimal. When the water-resistant abrasive paper is made to be able to be held down by a bolt or the like so as to be detachable, it is preferable that the water-resistant abrasive paper has a ring shape and the elastic body has a hollow cylindrical shape. In addition, since a metal receiving member for receiving the elastic body is provided between the elastic body and the spindle, it is possible to prevent the elastic body and the water-resistant abrasive paper attached thereto from being bent.

Further, a cylindrical guide whose outer diameter is substantially equal to the inner diameter of a female screw provided on the inner peripheral surface of the spindle insertion tube of the faucet main body is protruded from the outer peripheral surface of the spindle with the same central axis. Therefore, when the above-mentioned valve seat polishing tool is used, the guide comes into contact with the female screw on the inner surface of the spindle insertion tube, and the spindle can be held perpendicular to the valve seat. The action of vertically supporting the spindle with respect to the valve seat by such a guide and the support of the spindle by the cap nut screwed to the outer peripheral surface of the spindle insertion cylinder, in addition to this, make the spindle perpendicular to the valve seat. Completeness of the function to be retained can be achieved. For this reason, it is possible to prevent the occurrence of uneven grinding due to the polished surface being blurred, and to grind the valve seat horizontally and smoothly.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a tool for polishing a valve seat of a water tap according to the present invention will be described. FIG. 1 is a sectional view showing a valve seat polishing tool for a water tap according to the embodiment and a water tap main body to which the tap water polishing tool is attached, and FIG. 2 is a perspective view showing a polishing portion of the valve seat polishing tool for the water tap. It is. As shown in FIG. 1, the valve seat polishing tool of the faucet includes a handle 2, a spindle 4,
Cap nut 6, guide 7, elastic body 8, and water-resistant abrasive paper 9
Is the main part. Hereinafter, description will be made sequentially.

As shown in FIG. 1, the spindle 4 is a cylindrical mandrel having a water-resistant abrasive paper 9 (described later) connected to an end thereof and transmitting a polishing operation, and is opposite to the water-resistant abrasive paper 9 side. The handle 2 was fixed to the side end. This handle 2
Since the rotational force is manually transmitted to the spindle 4, the fixing is performed by fitting a spline shaft 5 provided at the end of the spindle 4 with the handle 2, and setting the set screw 3 from the upper portion of the handle 2 by a spline. By screwing inside the shaft 5.

As shown in FIGS. 1 and 2, the spindle 4
A thin columnar (disk-shaped) receiver 11 was fixed to the end of the handle opposite to the handle 2 with its central axis aligned. In addition, an end face of the receiving metal 11 opposite to the spindle 4 side is
A thin columnar elastic body 8 was provided. For this reason, the central axes of the spindle 4 and the elastic body 8 coincide with the central axis of the spindle 4. The elastic body 8 is made of rubber or the like, and the diameter of the elastic body 8 is larger than the diameter of the valve seat 22. On the end surface of this elastic body 8 (a circular flat surface opposite to the surface on which the receiving metal 11 is provided), a circular water-resistant abrasive paper 9 having substantially the same circular shape as this end surface is provided. did. The attachment of the elastic body 8 and the water-resistant abrasive paper 9 to the spindle 4
By screwing a stop screw 10 into the receiving metal 11 and the spindle 4 from outside. A hole (not shown) having a predetermined shape is provided at the center of the elastic body 8 and the water-resistant abrasive paper 9 in order to penetrate the stopper screw 10. Thereby, the polished surface of the water-resistant abrasive paper 9 and the surface of the valve seat 22 can be matched.

As shown in FIGS. 1 and 2, a cylindrical guide 7 is provided on the outer peripheral surface of the spindle 4 so as to have the same central axis. The outer diameter of the guide 7 was made substantially coincident with the inner diameter of the female screw 26 provided on the inner peripheral surface of the spindle insertion tube 23 of the faucet main body 21 within a range not to be larger than the inner diameter. Therefore, when the valve seat polishing tool 1 is used, the female screw 26 of the spindle insertion tube 23 comes into contact with the guide 7, and the spindle 4 can be held perpendicular to the valve seat 22. Therefore, the valve seat 22 can be polished horizontally and smoothly.

Further, the handle 2 of the spindle 4
The cap nut 6 is provided between the guide nut 7 and the guide nut 7. The cap nut 6 is configured such that the spindle 4 is slidably fitted into the center hole, and can be screwed to the outer peripheral surface of the faucet main body 21 near the end of the spindle insertion tube 23. For this purpose, the water-resistant abrasive paper 9, the elastic body 8, the holder 11, and the guide 7 attached to the spindle 4 are inserted into the spindle insertion tube 23 of the faucet main body 21, and the cap nut 6 is inserted into the spindle of the faucet main body 21. Cylinder 2
The spindle 4 can be supported in the spindle insertion tube 23 of the faucet main body 21 by screwing it to the outer peripheral surface at the three ends.
The support of the spindle 4 by the cap nut 6 is added to the vertical support of the spindle 4 by the guide 7 described above, so that the vertical state of the spindle 4 with respect to the valve seat 22 can be more completely maintained. Therefore, the levelness and smoothness in polishing the valve seat 22 can be improved.

As shown in FIG. 3, the valve seat polishing tool 1 includes a packing 13 and a washer 12 between the cap nut 6 of the spindle 4 and the guide 7 so that the spindle 4 passes therethrough. It is also possible to arrange in this order from the side. The packing 13 has a rubber hollow conical shape into which the spindle 4 can be inserted and fitted inside the cap nut 6. Further, the washer 12 is a circular plate having a circular hollow into which the end of the spindle insertion tube 23 can be fitted and into which the spindle 4 can be inserted. According to the valve seat polishing tool 1, the cap nut 6 is screwed onto the outer peripheral surface of the spindle insertion tube 23, so that the packing 13 is compressed between the washer 12 fitted to the spindle insertion tube 23 and the cap nut 6. The compressed packing 13 presses the spindle 4 in this way, so that the supporting force can be improved. For this reason, the levelness and smoothness of polishing of the valve seat 22 can be further improved.

The method of using the valve seat polishing tool 1 is as follows: 1) First, close the main tap of the water tap, loosen the handle of the tap, rotate the cap nut of the tap with a spanner or the like, and turn the spindle insert cylinder 23 out. Let go. After that, while rotating the handle of the faucet, pull out the connected spindle and packing together. At this time, the packing should be replaced. In FIG. 1, the handle, the cap nut, the spindle, and the packing of the faucet itself are removed and not shown because the valve seat polishing tool 1 of the faucet of the present invention is attached to the main body 21.

2) Next, the valve seat polishing tool 1 is inserted into the spindle insertion tube 23 of the water tap main body 21, and the cap nut 6 is lightly screwed with the spindle insertion tube 23. In this state, the handle 2 is gripped and lightly rotated, so that the water-resistant abrasive paper 9 of the present valve seat polishing tool 1 can remove surface roughness and scratches on the surface of the valve seat 22 and can smoothly polish. . If the water-resistant abrasive paper 9 is worn out during this operation, the water-resistant abrasive paper 9 is replaced. When the surface of the valve seat 22 is uniformly illuminated when the inside of the spindle insertion tube 23 is illuminated with an electric light or the like, the polishing operation is completed. Thus, the valve seat 22
Is smooth, the water stops even if the handle is strongly tightened and the packing is not pressed strongly against the valve seat 22. For this reason, the deterioration of the packing in a short time can be prevented, and the life can be extended.

3) Finally, the cap nut 6 of the valve seat polishing tool 1 is rotated to release the screw engagement with the spindle insertion tube 23, and the valve seat polishing tool 1 is pulled out from the water tap main body 21. The valve seat polishing operation is completed. After that, the packing of the faucet, the spindle, etc. may be attached.

4) The handle 2, the spindle 4, the cap nut 6, and the receiving metal 11 constituting the valve seat polishing tool 1 of the present invention may be the same as the structure of the faucet itself. 8 can also be replaced by the packing of the faucet itself. For this reason, the valve seat polishing tool 1 is a structure of the faucet itself,
In other words, it can be manufactured by attaching the guide 7 and the water-resistant abrasive paper 9 using the handle, the spindle, the cap nut, the metal holder, and the packing.

[0021]

According to the tap valve polishing tool of the present invention, the following specific effects can be exhibited. 1) In a state where the valve seat polishing tool is attached to the faucet main body, the handle fixed to the spindle is gripped and rotated while being in contact with the valve seat, whereby the water-resistant abrasive paper polishes the valve seat. And rough skin can be removed. This helps the packing to prevent water leakage and extends the life of the packing. Further, the replacement and repair period of the entire faucet can be drastically extended, and the economic efficiency can be improved. Conventionally, a tool for polishing a valve seat of a faucet main body as in the present invention in maintenance for water leaks of a faucet or the like is epoch-making in view of the fact that there is no concept.

2) Since the elastic body is provided between the water-resistant abrasive paper for polishing the valve seat and the spindle, the change in the strength and direction of the pressing force of the spindle against the valve seat during use is reduced. Therefore, unevenness of the polishing amount and occurrence of unevenness can be prevented. In addition, by covering the elastic material with the abrasive, an effect such as polishing can be obtained, and the polished surface can be finished relatively smoothly. For this reason, the effect of preventing water leakage from the faucet can be further improved.

3) A cylindrical guide whose outer diameter is substantially equal to the inner diameter of a female screw provided on the inner peripheral surface of the spindle insertion tube of the water faucet main body is provided on the outer peripheral surface of the spindle with the same central axis. Therefore, when the above-mentioned valve seat polishing tool is used, the guide comes into contact with the female screw on the inner peripheral surface of the spindle insertion tube, and the spindle can be supported in the spindle insertion tube and perpendicular to the valve seat. With the support function of the guide and the support function of the cap nut, the spindle can be held perpendicular to the valve seat. Therefore, the valve seat can be polished more horizontally.

4) By replacing the water-resistant abrasive paper, the valve seat polishing tool of the present invention can be used any number of times, and is excellent in economy. In addition, since the thread diameter of the outer peripheral surface of the spindle insertion cylinder and the inner thread diameter of the inner peripheral surface of the spindle insertion cylinder to which the cap nut of the water tap is engaged are standardized, the screw diameter of the cap nut of the valve seat polishing tool and By standardizing the outer diameter of the guide similarly, versatility can be obtained.

5) Further, when the polishing effect is lost due to clogging or crushing, it is sufficient to replace only such a water-resistant abrasive paper, which is excellent in economy and handling.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a tap valve polishing tool for a water tap according to an embodiment of the present invention, and a water tap main body to which the tool is attached.

FIG. 2 is a perspective view showing the vicinity of a valve seat polishing paper in the valve seat polishing tool of the water tap shown in FIG.

FIG. 3 is a cross-sectional view showing a tap faucet polishing tool according to a form in which a washer and a packing are added to the tap faucet polishing tool of FIG. 1, and a faucet main body to which the tap seat polishing tool is attached.

[Explanation of symbols]

 1 Valve Seat Polishing Tool 2 Handle 3 Set Screw 4 Spindle 5 Spline Shaft 6 Cap Nut 7 Guide 8 Elastic Body 9 Water Resistant Abrasive Paper 11 Receptacle 12 Washer 13 Packing 21 Main Body 22 Valve Seat 23 Spindle Insertion Tube 26 Female Screw

Claims (1)

[Claims] 1. A cylindrical spindle, a handle fixed to one end face of the spindle, and a thin cylindrical receiver fixed to the other end face of the spindle with its central axis aligned.
A columnar elastic body attached to the end face of the receiver opposite to the spindle side with the center axis coincident with the end face, and the center of the elastic body opposite to the end face of the receiver opposite to the reception side is detachable. The provided circular water-resistant abrasive paper, a cap nut slidably fitted in the center hole, and a cap nut screwable to the outer peripheral surface of the spindle insertion tube of the faucet main body; A cylindrical guide having the same central axis protruding from the outer peripheral surface of the spindle on the side, and having the outer diameter substantially matching the inner diameter of a female screw provided on the inner peripheral surface of the spindle insertion tube of the faucet main body. A tapping valve polishing tool for a water tap.