JP3067227U - Control mechanism of ball tap water shutoff valve - Google Patents

Abstract

(57) [Summary] [PROBLEMS] A float rod which is equipped with a float at a free outer end and swings with a change in the water level of a water storage tank, and a water shutoff valve body which supports a water stop valve body interlocked with the swing of the float rod. The moving lever lever and the extendable connecting rod that connects the two rods to accurately transmit the swing of the float rod as the swing of the lever rod are easily and accurately adjusted in length into the tank. Is strongly desired for the installation of the ball tap. SOLUTION: The upward turning movement of the float rod 6 is changed to a lever 1
The length of the connecting rod 19 that connects the two rods for transmitting the upward turning movement for complete water stoppage of the water stop valve body 6 that moves up and down in the ball tap body 1 is adjusted at the free outer end of the lever rod 11. A joint nut 21 is attached to the portion, and a sleeve 23 is swingably attached to the float rod 16 side. A coil spring 24 is interposed between the nut and the sleeve.
(3) The bolt 25 inserted from the upper end face is screwed into the joint nut 21, and the small screw 26 implanted in the body of the sleeve 23 is pressed against the fixed bolt side surface in the fixed state.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a control mechanism for a ball tap water stop valve, and more particularly to a control mechanism for a water stop valve using a link mechanism.

[0002]

[Prior art]

 The present invention relates to a control mechanism for a ball tap water stop valve, and more specifically, a link that allows the vertical movement of a float floating on the water surface in a water storage tank to be linked to the opening and closing movement of a water stop port of the water stop valve. It is aimed at improving the mechanism.

[0003] A swingable lever that can push a part of the water stop valve body into the ball tap body in contact with the lower end surface of the water stop valve body, and attach a float at one end to fill the water level in the tank. The float rod is also capable of swinging along with the change, and in order to transmit the slight swinging displacement of the float rod to the lever with a precise swing width, the two rods are connected with a connecting rod. The connecting rod is configured to be adjustable in expansion and contraction.

A delicate adjustment operation is required for the expansion and contraction of the connecting rod for transmitting the swinging movement of the float rod to the accurate swinging movement of the lever. As a configuration widely used as the connecting rod capable of adjusting the expansion and contraction, for example, a connecting rod of a turnbuckle type disclosed in Japanese Utility Model Publication No. 51-54416 or Japanese Patent Application Laid-Open No. 8-184389 is generally used. Have been.

That is, as shown in the cross-sectional view of the conventional ball tap shown in FIG. 3, a water supply pipe 32 communicating with a water source is provided in a main body 31 of the ball tap in a lateral direction, and a water discharge pipe 33 is provided in a downward direction of the main body 31. A piston type water stop valve body 36 slidable in the vertical direction is inserted into a water stop port 34 in the water discharge pipe 33, and when water is stopped, the water stop valve 34 is stopped from below the water stop port 34. A seat packing 37 constituting a part of the water valve body 36 is pressed against the water stop port 34. The press-stop water movement of the sheet packing 37 against the water stop port 34 is performed by levering the lower end of the water stop valve body 36 projecting downward from the water stop port 34 using the pivot pin 39 at the lower part of the main body 31 as a fulcrum. This is achieved by the lifting support at the time of the rocking movement of 38.

On the other hand, a float rod 40 equipped with a float 42 at an outer end thereof is pivotably mounted on an upper portion of the main body 31 with a pivot pin 41 as a fulcrum. A connecting rod 43 is connected between the outer end of the lever rod 38 on the side opposite to the pivot pin 39 and a portion near the pivot pin 41 of the float rod 40.

A turnbuckle method is adopted for the connecting rod 43, and a screw fitting 45 pivotally supported by a pin 44 at an outer end of the lever rod 38 and a screw fitting pivotally supported by a pin 46 of the float rod 40. An adjusting nut 48 and a lock nut 49 are screwed and connected to the two metal fittings 45 and 47, respectively. The nut 48 has a right-handed screw and a left-handed female screw cut in half so that it fits with the screw fittings to be screwed together. The distance between the pins 44 and 46 is adjusted by turning the adjustment nut 48. It is configured to be possible.

[0008]

[Problems to be solved by the invention]

 The float also rises with the rise of the surface of the water injected into the water storage tank up to the predetermined water level, and the float rod 40 also pivots on the pivot pin 41 as a fulcrum. When the float rod 40 is rotated upward by a predetermined amount, the lever rod 38 is pressed against the lower end portion of the water stop valve body 36 by the upward rotation of the lever rod 38 about the pivot pin 39 via the connecting rod 43. It is preferable that the watertight body is lifted and the seat packing 37 of the waterstop valve body 36 to the waterstop 34 is in a tightly sealed state. Accurate turning movement of the lever rod 38 in conjunction with the float rod 40 must ensure precise adjustment of the length of the connecting rod 43 connecting the float rod 40 and the lever rod 38 and subsequent holding.

The length adjustment work of the connecting rod 43 adopting the conventional turnbuckle method includes the float 42 floating on the water injection surface, the float rod 40 swinging, and the seat packing 37 of the water shutoff valve body 36. In order to accurately position the lever 38 and the like so that the lower surface of the water stop 34 is pressed against the lower surface of the water stop port 34, it is necessary to secure the predetermined positions of the float rod 40 and the lever 38 to improve the effectiveness. it can.

In the work of adjusting the length of the connecting rod 43 proceeding while simultaneously securing the predetermined positions of the float rod 40 and the lever rod 38, the float rod 40 is hindered by the presence of the float rod 40 from above the tank. The screwing adjustment of the adjusting nut 48 and the screwing work of the lock nut 49 and the length adjusting work of the connecting rod 43, which rely on feeling for the most part with both hands on the lower side, require skill and trouble. Costly and very difficult.

[0011] In the large water storage tank, a plurality of ball taps may be installed, and the water stopping work which requires the simultaneous operation of each ball tap is required for the length adjustment work of the connecting rod which requires skill and trouble. In such a case, further simplification of the length adjustment work of the connecting rod, which requires skill, is required. An object of the present invention is to achieve a further simplification of a length adjusting operation of a connecting rod connecting a float rod and a lever rod.

[0012]

[Means for Solving the Problems]

 The present invention employs the following configuration to achieve the above object. The control mechanism of the ball tap water stop valve body according to the present invention is that the piston type water stop valve body that opens and closes the water stop port in the water discharge cylinder that opens below the ball tap body slides vertically in the ball tap body, When the seat packing, which constitutes a part of the water stop valve, is pressed against the water stop, the lower end of the water stop valve protruding downward from the water stop of the main unit can be swung about the pivot pin below the main unit. It is supported in a lifting shape with a lever. On the other hand, a float rod equipped with a float at a free outer end is swingably mounted on the upper portion of the ball tap body so as to be swingable about a pivot pin.

The connecting rod which is a main component of the present invention for connecting the lever rod and the float rod is disposed between an outer end portion which is an anti-pin pivot portion of the lever rod and a portion of the float rod which is closer to the pin pivot portion. The connecting rod has the following configuration.

[0014] A joint nut is provided at the outer end of the pivotable lever, and a sleeve is provided at a portion of the float near the pivot pin. The upper end of the sleeve is made to protrude larger than the float. In this state, they are also pivotally mounted with mounting rivets so that they can swing. A bolt with a sleeve inserted between the joint nut and the sleeve is screwed into place, and the tip of the bolt is screwed into the joint nut, rotating the bolt head in engagement with the upper end of the sleeve. At the very least, by adjusting the screwing depth of the bolt to the joint nut and adjusting the compression repulsion of the coil spring, the connecting rod composed of the sleeve, the bolt and the joint nut is adjusted to a predetermined length and fixed. You.

[0015] The connecting rod which has been adjusted to the optimum length, the small screw implanted in the body of the sleeve is pressed against the side of the bolt to prevent the rotation of the bolt, With regard to the length, the complete fixation is achieved without using it.

[0016]

[Embodiment of the invention]

 Next, embodiments of the present invention will be specifically described with reference to the drawings. A horizontal water supply tube 2 connected to a water source is provided on a side surface of a main body 1 of a ball tap installed at a relatively upper portion in a water storage tank, and a water discharge tube 3 opening downward in a downward direction of the main body 1. Is provided.

A water stop port 4 is opened inside the water discharge tube 3, and a main body 1 mainly includes a spindle 5 that repeats a downward movement by a water supply pressure supplied from the water supply tube 2 and an upward movement by an applied lifting external force. The piston type water stop valve body 6 projects the lower end portion of the water stop valve body 6 downward from the water stop port 4, and the seat packing 7 constituting a part of the water stop valve body 6 is a water stop valve. When the body 6 ascends, it is provided so as to be tightly pressed against the water stop port 4 from below. Reference numeral 8 denotes a strainer disposed between the water supply cylinder 2 and the water discharge cylinder 3.

Notch windows 9, 9 are formed near the lower end of the water discharge tube 3 of the ball tap body 1, and a lever 11 is inserted through the notch 9, and one end of the lever 11 is The water discharge cylinder 3 is pivotally mounted on a pivot pin 12 so as to be swingable. A part of the lever 11 is provided with an upward projection 13 protruding therefrom. The lever 13 is pivoted upward with the pivot pin 12 as a fulcrum. At the time of turning, the upward projection 13 pushes up the lower end surface of the water shutoff valve body 6, and then extends the sheet packing 7 so as to be pressed against the lower surface side of the water shutoff port 4.

A float rod 16 having a float 15 at its free outer end is pivotally mounted on the upper end of the ball tap body 1 with a pivotal pin 17 at the free end of the ball tap. I have. The lever rod 11 and the float rod 16 are connected by a connecting rod 19.

The connecting rod 19 has a rivet 20 pivotally mounted on a joint nut 21 at an outer end portion of the lever rod 11 opposite to a pivot pin side, and a pivoting pin of the float rod 16. Similarly, a sleeve 23 is pivotally mounted between the forked parts 18 with a rivet 22 in such a manner that the upper end surface of the sleeve is protruded greatly above the float rod 16. Between the joint nut 21 and the sleeve 23, both ends are fitted into recesses 27, 27 recessed at the inner ends of the nut 21 and the sleeve 23, and a coil spring 24 ensuring its stability is provided. The head is provided with a cross-shaped hole inserted in the sleeve 23 from above, and the tip of the bolt 25 is screwed into the joint nut 21.

The float rod 16 lifted up on the pivot pin 17 as a fulcrum by the float 15 floating on a predetermined water level of the water storage tank, and the pivot pin 12 is similarly connected via the connecting rod 19 with the upward pivotal movement of the float rod 16. The lever 11 is lifted up as a fulcrum, the seat packing 7 of the water shutoff valve 6 is closed, the water shutoff port 4 is closed, and the lever 11 for supporting the water shutoff valve 6 for achieving a complete water shutoff state. The water stopping operation can be achieved only when the lever 11 pivots in response to the swing of the float 16 accurately, so that the expansion and contraction adjustment of the connecting rod 19 connecting the both rods 11 and 16 is accurate and simple. It is strongly desired that

In this regard, the length of the connecting rod 19, which is a main component of the present invention, is adjusted by arranging the floating rod 16 lifted to a predetermined turning position with one hand on the upper surface of the floating rod 16. With the simple work of rotating the bolt head, which is positioned on the upper end surface of the installed sleeve 23, with the other hand, the maximum turning position of the float rod 16 and the water stop of the lever rod 11 are achieved. As a result, it is possible to secure a swivel-up position where the valve body 6 can be maintained in a completely impeded state.

When the extension and contraction of the length of the connecting rod 19 is completed, the length of the connecting rod 19 is fixed by a strong pressing force against the strong sleeve 23 of the coil spring 24 and the joint nut. . Further, the small screw 26 having a cross-shaped hole implanted in the body of the sleeve 23 is pressed against the side surface of the bolt to prevent the bolt from being further loosened by cooperating with the pressing force of the coil spring 24. Accurate operation of the entire link mechanism for water stoppage of the ball tap across is maintained.

[0024]

[Effect of the invention]

 In accordance with the rising movement of the float floating at the predetermined water level in the water storage tank, the seat packing of the float rod and water shutoff valve body, which has secured the predetermined rotation rising position, is sealed in the water shutoff port. The positional relationship between the levers and the levers for maintaining a complete water blocking state largely depends on the length of the connecting rods connecting the levers.

In the present invention, the optimal adjustment of the length of the connecting rod is performed on the upper surface of the float rod completely in a difficult position from the position above the tank and, if necessary, under visual conditions. The exposed bolt head is rotated with only one hand without any particular hindrance by the presence of the float rod, and with the other hand left free, the optimal float rod position is adjusted. The work can be progressed in the secured state, and this adjustment work realized by the rotation work of the bolt head can achieve its purpose accurately, simply and quickly.

Further, by attaching the sleeve for locking the bolt head to the float rod so as to protrude largely from the upper surface of the float rod, the screwing operation of the bolt becomes easier, and furthermore, the bolt is further tightened. Pressing the small screw to the side of the bolt for fixing is also simplified.

The above-described simple adjustment of the length of the connecting rod further enhances this benefit when a plurality of ball taps are installed in a large tank for the purpose of speeding up the water injection work.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a ball tap embodying the present invention.

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

FIG. 3 is a longitudinal sectional view of a conventional ball tap.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 3 Water discharge pipe 4 Water stop port 6 Water stop valve body 7 Seat packing 11 Lever rod 13 Upward stick 15 Float 16 Float rod 19 Connecting rod 20 Rivets 21 Joint nut 22 Rivet 23 Sleeve 24 Coil spring 25 Bolt 26 Small screw

Claims (3)

[Utility model registration claims] 1. A lever rod which opens and closes a water stop valve body disposed at a water stop port in a water discharge tube of a ball tap main body, and a float rod which is equipped with a float at an outer end and also rocks. The connecting rod to be connected is engaged with the sleeve of the bolt inserted from above the sleeve by inserting a spring between the sleeve that is swingably attached to the float rod and the joint nut that is swingably attached to the lever rod. A ball tap water shutoff valve control mechanism characterized in that the head in the state is rotated and screwed to a joint nut so that expansion and contraction can be adjusted. 2. A lever rod, which is opened and closed by swinging a water stop valve disposed at a water stop port in a water discharge cylinder of a ball tap body, and a float rod which is equipped with a float at an outer end and swings similarly. The connecting rod to be connected is swingably attached to the float rod, and a spring is interposed between the sleeve whose upper end protrudes from above the float rod and the joint nut which is swingably attached to the lever rod, and the sleeve is inserted. A control mechanism for a ball tap water stop valve, wherein the head is engaged with a sleeve of a bolt inserted from above, and the head is rotated and screwed into a joint nut so that expansion and contraction can be adjusted. . 3. A lever rod which is opened and closed by swinging a water stop valve disposed at a water stop port in a water discharge tube of a ball tap body, and a float rod which is equipped with a float at an outer end and swings similarly. The connecting rod to be connected is swingably attached to the float rod, and a spring is interposed between the sleeve whose upper end protrudes from above the float rod and the joint nut which is swingably attached to the lever rod, and the sleeve is inserted. Rotate the head in engagement with the sleeve of the bolt inserted from above and screw it to the joint nut by rotating it, and then adjust the expansion and contraction by crimping the small screw planted in the sleeve of the sleeve to the bolt A control mechanism for a ball tap water shutoff valve, wherein the control mechanism is configured to be able to perform the control.