JPS5817819Y2 - Opening meter for water supply valve for water tank - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in an opening gauge for a water supply valve that is attached to the main body of the opening/closing table for opening and closing the water supply valve that supplies stored water into a water storage tank.

Conventionally, this type of opening gauge has a dish-shaped opening stand that is installed to cover a mounting opening formed in the side wall of the opening/closing stand body installed above the water tank, and A scale label plate with open and closed indications is provided, and a pointer shaft is integrally attached to the tip of the scale label plate, penetrating the center of the scale label plate and protruding within the opening degree, and protruding from the back of the opening table. It consists of a worm wheel that meshes with a worm gear engraved on the opening/closing rod, which is fixed to the rear end of the support shaft and located inside the opening/closing table body, to detect and measure the opening degree of the water supply valve.

However, the water supply valve in the water storage tank may open by turning clockwise or counterclockwise; that is, the direction in which the valve opens depends on the direction in which the thread is carved into the spindle inside the water supply valve. There are two types of water valves of different types.

Therefore, it was necessary to manufacture two types of opening gauges that can be used with different types of water supply valves.

In other words, the opening meter detects and measures the valve opening of the water supply valve, which is opened by rotating the hand wheel attached to the upper end of the opening/closing rod clockwise. For example, the worm wheel must be positioned on the right side of the worm gear of the opening/closing rod so that it can rotate more in the opening direction, and the worm gear must be made to mesh with the worm gear. Since the pointer has to be manufactured so that it rotates in the opening direction rather than the closing direction in conjunction with the leftward rotation of the opening/closing rod, manufacturing is complicated and at the same time expensive.

Furthermore, since the inventories of the two types of position gauges must be managed individually, there is an inconvenience in that the inventory management becomes very troublesome.

In view of these conventional inconveniences, the present invention has been designed to accommodate the type of water supply valve by turning it half 180 degrees and at the same time rotating the scale label plate so that the closed position is on the left side when viewed from the front. It is an object of the present invention to provide a water supply valve opening degree meter that can be used as a valve opening degree measuring device for two types of water supply valves by being attached to a base body.

The basic structure of the open position meter of this invention is: a position display section that is mounted by covering a mounting hole drilled in the opening/closing table body; a gear train located inside the opening display section, and a dish-shaped opening table that protrudes mounting protrusions facing each other from the outer periphery of the opening display section, and covers the mounting opening; The gear train is equipped with a scale label plate that is rotatably arranged inside the opening housing and has an open and closed indication, and a cap that covers the front opening and has a transparent plate that is detachably locked. At the rear end of the first support shaft, which integrally has a pointer shaft at its tip that protrudes through the center of the scale label plate into the opening chamber, is attached at right angles to the straight line connecting the axis of the opening/closing rod and the pointer shaft. A second spur gear is fixed to the fixed first spur gear, and a second spur gear is fixed to a midway part of a second support shaft rotatably protruding from the opening table parallel to the first support shaft, and meshes with the first spur gear. comprising a spur gear and a worm wheel fixed to the rear of the second spur gear and meshing with the worm gear;
Rotate it half 180 degrees and attach it to the main body of the opening/closing table using the mounting protrusion, and align the worm wheel with the left or right side of the worm gear engraved on the opening/closing rod, and connect the opening and closing of the scale label plate in the right direction of opening. It is characterized in that the scale label plate is rotated so that the lines are horizontal.

Hereinafter, embodiments of the present invention will be described based on the drawings.

FIG. 1 is a front view showing a state in which the open degree meter B of the present invention is attached to the cylindrical opening/closing table main body A installed on the fitting 2 of the water tank 1. The opening/closing display part B1 is installed by covering the mounting opening 1a opened in the side wall of the switchboard, and the opening/closing display part B1 is installed behind the display part B0 and inserted through the mounting opening 1a to open/close the opening/closing stand main body A.
and a gear train B2 located inside.

The opening display section B1 includes a circular and dish-shaped opening table 4 that covers the mounting opening 1a with a mounting protrusion 3.3 protruding from the outer periphery of the center sandwiching the opening position, and this opening table. a cap 7 having a transparent plate 6 which is removably secured to the outer peripheral surface of the opening edge with a small screw 5 on the side so as to cover the front opening of the opening 4; and a tip of a pointer shaft 8 protruding from the center of the inner surface of the opening table 4. Pointer 9 attached to
A scale label plate 10 is arranged rotatably around a pointer shaft 8 within the opening position stand 4 and has an indication from open to closed on its surface.

On the other hand, the gear train B2 connects the pointer shaft 8 protruding from the center of the inner surface of the opening table 4 to the small diameter shaft portion 11a and the stepped portion 11b.
It is fixed to the rear end of the first support shaft 11 integrally provided at the tip (one end) through the opening/closing table main body A at right angles to the straight line connecting the axis of the opening/closing rod 2a inserted into the opening/closing table main body A and the pointer shaft 8. 1st spur gear 1
2, and a second support shaft 1 that protrudes by rotatably fitting a small diameter shaft portion 13a on the back surface of the opening table 4 in parallel with the first support shaft 11.
3, a second spur gear 14 meshes with the first thousand gear 12 fixed at right angles to the axial direction of the support shaft 13;
A worm wheel 15 is fixed to the rear end of the second support shaft 13 behind the second thousandth gear 14 in parallel with the second spur gear 14.

The first and second support shafts 11.13 are connected to a support plate 17 held at regular intervals parallel to the back surface of the opening table 4 via several intervening rods 16, and the opening table. They are rotatably supported by the four rear surfaces.

That is, the worm wheel 15 is fixed to a second support shaft 13 that protrudes from the back surface of the support plate 17, and is attached to a worm gear 2a' carved on the outer peripheral surface of the opening/closing rod 2a located inside the opening/closing table main body A.
The rotation of the handle wheel 20 attached to the upper end of the opening/closing rod 2a in mesh with the second spur gear 14 via the second support shaft 13
It transmits rotational force to.

The first thousandth gear 12 meshes with the second spur gear 14.
By transmitting rotational force to the pointer shaft 8 protruding into the opening table 4 at its tip and rotating the pointer shaft 8 via the first support shaft 11 to rotate the pointer 9, the water supply provided in the water storage tank 1 is rotated. This is to detect and measure the opening degree of valve C.

The water supply valve C is opened and closed by fitting and connecting a spindle C1 protruding from the upper end with a socket 21 attached to the lower end of the opening/closing rod 2a which can protrude into the water storage tank 1 from a fitting 2 on which the opening/closing table main body A is installed. The valve opens or closes depending on the direction of rotation of the rod 2a.

Note that 30 in the figure is a water supply pipeline directly connected to the water supply valve C.

To explain the correspondence between the opening degree meter B of the present invention constructed as described above and the two types of water supply valves C of different types, first, the type that opens by rotating the handle wheel 20 to the left; That is, in the water supply valve C in which the threaded portion of the spindle C1 is carved in the right direction, the worm wheel 15 is located on the left side of the opening/closing rod 2a, and the worm gear Mounting protrusions 3, 3 provided on the outer periphery of the opening table 4 so as to mesh with 2a' are attached to the opposing upper and lower surfaces of the circular protruding flange 3' provided on the outer periphery of the mounting opening 1a on the side wall of the opening/closing table main body A. The mounting screw 18 is screwed through the threaded mounting holes 18', 18' to be mounted.

Note that this mounting state is a normal mounting state for the water supply valve C, and when the handle wheel 20 is rotated to the left, the direction of rotation of the pointer 9 on the scale label plate 10 of the opening display section B1 rotates in the direction of the arrow shown in FIG. to indicate the accurate valve opening, and the steering wheel 20
When rotated clockwise, the water supply valve C closes.

In the type of water supply valve C in which the valve is opened by rotating the handle wheel 20 clockwise, that is, the direction in which the threaded portion carved on the spindle C1 is directed to the right, the worm is opened as shown in FIG. 180 such that the wheel 15 is located on the right side of the opening/closing rod 2a and meshes with the worm gear 2a'.
'Install by turning it in half.

Then, remove the cap 7 attached to the opening stand 4 and rotate it so that the open position on the scale label plate 10 is the same as the open position on the scale label plate 10 shown in FIG. Set up

Then, when the handle wheel 20 is rotated clockwise, the opening degree display section B
The direction of rotation of the pointer 9 of the scale label plate 10 of No. 1 is in the direction of the arrow shown in FIG. 4 to indicate the opening degree of the water supply valve C.

Therefore, by attaching the opening position 4 by rotating it by 180 degrees and rotating the scale label plate 10 at the same time, even if the type is different due to the difference in the direction of the thread of the spindle C1 of the water supply valve C, it is possible to It is convenient because it can be installed and used for both types.

The opening meter of this invention can be used even if the type of water supply valve is different, such as on a diagonal, by rotating the mounting on the opening/closing stand body by 180 degrees and changing the open and closed positions of the scale label plate. Since the valve opening degree can be detected and measured, it is possible to eliminate the trouble of manufacturing each type of water supply valve as in the past, making it possible to significantly reduce costs and have great practical effects. It is.

Therefore, the intended purpose can be achieved.

[Brief explanation of drawings]

Fig. 1 is a front view showing the open position meter of the present invention attached to the switchboard body installed on the roof of the water tank, Fig. 2 is an enlarged sectional view taken along line II-II in Fig. 1, Fig. 3 is a cross-sectional view taken along the line III-III of Fig. 2, partially cut away, and Fig. 4 shows the opening meter of the present invention rotated by 180° and a half due to the difference in the type of water supply valve. FIG. 5 is an enlarged sectional view taken along the line v--■ in FIG. 4. FIG. In the diagram: A: Switching stand main body, B: Opening gauge, C: Water supply valve, 1: Water tank, 2
a... Opening/closing rod, 2a'... Worm gear, B1... Opening degree display, B2...
Gear train, 3, 3...Mounting protrusion, 4...
...Opening position, 6...Transparent plate, 7...
・Cap, 8... Pointer shaft, 9... Pointer, 10... Scale label plate, 11...
First support shaft, 12...First spur gear, 13...
...Second spindle, 14...Second spur gear, 15...
...worm wheel.

Claims (1)

[Scope of utility model registration request] A cylindrical opening/closing table is inserted into the main body of the opening/closing table installed above the water tank, a handle wheel is connected to the upper end, a water supply valve in the water tank is connected to the lower end, and a worm gear is installed in the part located inside the opening/closing table main body. This is an opening meter that detects and measures the opening degree of a water supply valve in conjunction with the worm gear of an opening/closing rod carved with It consists of an opening display section that is attached to the opening display section, and a gear train that is installed behind this display section and inserted through the mounting opening and located inside the main body of the opening/closing table. A dish-shaped opening table with mounting protrusions protruding from opposite sides on the periphery and covering the mounting opening, a scale label plate with open and closed indications arranged rotatably in conjunction with the opening, and The gear train is equipped with a cap with a transparent plate that covers the front opening and is removably locked, and the gear train has a pointer shaft that penetrates the center of the scale label plate corresponding to the opening and is integrated at the tip. A first gear is fixed to the rear end of the first support shaft at a right angle to the straight line connecting the axis of the opening/closing rod and the pointer shaft, and is rotatable from the opening table parallel to the first support shaft. a second thousandth gear fixed to the middle part of the second support shaft protruding from the shaft and meshing with the first spur gear; and a worm fixed to the rear of the second thousandth gear and meshing with the worm gear. The opening table is rotated half 180 degrees and attached to the opening/closing table main body using the mounting protrusion, and the worm wheel is meshed with the left or right side of the worm gear engraved on the opening/closing rod, so that the opening degree is matched. An opening meter for a water supply valve for a water tank, in which a scale label plate is rotated so that a line connecting open and closed positions of the scale label plate becomes horizontal.