JPS5947219B2 - Circulating hot water bath pot - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a circulating hot water bath pot that can circulate and heat water in a bathtub and heat water for supplying hot water to the bathtub or hot water for showers, etc. When the water level in the bathtub reaches a set water level, It is equipped with an automatic hot water supply function that automatically stops hot water supply.

To explain this based on one embodiment of the drawings, 1 is a bathtub, 2 is a can body having a circulation heating section 3 and a hot water heating section 4 connected to the bathtub 1, 5 is a main burner, and 6 is a pilot. The burner γ is a gas opening/closing mechanism arranged in the gas passage 8. A safety valve 10 is kept open by the thermoelectromotive force of a thermocouple 9 heated by the pilot burner 6. A main gas valve 11 is located downstream of the safety valve 10. , pilot gas valve 1
2 is provided.

13 is the front pipe of the main burner 5, which has two internal chambers 14.15
The gas is introduced into each chamber through a main gas valve 11, and an on-off valve 1 is provided in the gas passage to one chamber 14.
6 is provided.

11 is a plurality of nozzle holes bored in each chamber 14, 15;
18 is each valve 10. A rotating shaft with cams 19, 20, 21.
The rotation opens the safety valve 10 and the pilot gas valve 12, and at this time, the appropriate automatic ignition device is operated to ignite the pilot burner 6. After the safety valve 10 is held open, the safety valve 10 is further rotated by 90 degrees ( (180° rotation from the stop position)
When this happens, the pressure on the safety valve 10 is released, the main gas valve 11 is opened, and the main burner 5 is ignited, starting from the stop position.
When rotated to the ° position, the on-off valve 16 closes and one chamber 14
Gas ejection from the nozzle hole 1γ provided in the main burner 5 is stopped, and the input to the main burner 5 is reduced.

23, 24°, 25.26 are valves 10. lL12,16
The spring 21 that presses in the closing direction is an operating shaft that rotates the rotary shaft 18 integrally, and is always urged upward by the spring 28 so that it can move within a certain range in the axial direction.

29 is a water supply channel 30 that passes through the hot water heating section 4 and reaches the hot water outlet.
The water supply valve is disposed in the water supply channel 30 and is always biased in the closing direction by a spring 31, causing the valve rod 32 to protrude outward from the water supply channel 30.

Reference numeral 33 denotes a water supply lever that is swingable with one end as a fulcrum, and has locking portions 34 formed at appropriate locations.

35 is a water supply cam attached to the operating shaft 21;
When the water supply lever 33 is rotated by 180 degrees, the water supply lever 33 is pressed to open the water supply valve 29 via the valve rod 32 to perform hot water supply operation, and when the operation shaft 21 is pressed in the axial direction within a certain range, the water supply lever 33 is opened. It is designed so that it can be removed from the position where it is pressed.

18 after pressing the operating shaft 27 within a certain range at the 90° rotation position.
When rotating to the 0° position, the water supply cam 35 is out of the position where it can press the water supply lever 33, so the water supply valve 29 is not opened, and only the main gas valve 11 is opened, forming a circulating heating operation. Become.

Reference numeral 36 denotes a locking mechanism, which is constructed by providing a roller 39 at an appropriate position on a swinging lever 38 whose one end is pivoted by a support shaft 3γ.
This roller 39 falls into the locking portion 34 of the water supply lever 33, prevents the water supply lever 33 from returning to its original state, and holds the water supply valve 29 in an open state.

Furthermore, the tip of the swinging lever 38 engages with a disk 40 attached to the operating shaft 2γ, and the swinging lever 38 is normally raised, so that the water supply lever 33 is locked to the swinging lever 38. However, when the operating shaft 2γ is pressed against the spring 28 at the 180° rotation position, the rope 39 can be lowered to a position where the water supply lever 33 can be locked, and the water supply cam 35 is set to the water supply lever 33. The water supply lever 33 is locked and held in the open state before the pressure on the water supply lever 33 is released, thereby forming an automatic water cutoff setting operation.

41 is a release mechanism that releases the water supply valve 29 from the lock mechanism 36, and a diaphragm 4 that detects the water level pressure in the bathtub 1;
2. A water pressure response device 44 having a water level setting spring 43 and communicating with the bathtub 1, and a spindle 45 connected to the diaphragm 42.
and a pin 41 provided at the tip of the spindle 45 at the water level of the bathtub 1 set by the adjustment screw 46.
presses the swing lever 38 to release the locked state between the water supply lever 33 and the swing lever 38.

Reference numeral 48 denotes a time switch inserted in series in a thermoelectric circuit composed of a thermocouple 9 and a safety valve 10, and controls the combustion time of the main burner 5.

Reference numeral 49 denotes a retaining pin fixed to the operating shaft 21, which is connected to the guide tool 50 to rotate the operating shaft 21 during hot water supply operation from the stop position to the 270° position, and to circulate heating from the 90° position to the 180° position. It is designed to guide pressing rotation during operation, automatic pressure at 180° hot water supply position, and pressing when operating the water set.

When pressing the operation shaft 2γ at the 180° hot water supply position, it is necessary to maintain this pressing state, and therefore the guide tool 50 at 18
A locking mechanism is constructed by providing a locking body such as a ball 51 below the pressure guide path at the 0° position that is biased by a spring and protrudes into and out of the path so that the pin 49 can be locked.

53 is a hot water supply pipe, 54 is a shower, and 55 is a switching valve for switching the hot water supply path to the pipe or shower.

The present invention has the above configuration, and when used for supplying hot water to hot water, showers, etc., after turning the operating shaft 21 by 90 degrees to ignite the pilot burner 6, the present invention is further rotated by 90 degrees (to the stop position) without pressing. It is sufficient if the rotation is shifted by 180°,
The water supply cam 35 presses the water supply lever 33 and the water supply valve 29
is opened to allow water to flow through the heating unit 4 for hot water supply, and the main burner 5 is combusted to supply hot water.

When the hot water temperature is too high in the summer, etc., turn the operating shaft 2γ.
If it is further rotated by 9o0 (270 degrees from the stop position), the on-off valve 16 closes and gas ejection from one chamber 14 stops, reducing the input to the burner 5 without changing the amount of hot water supplied, and setting the temperature to an appropriate temperature. Can supply hot water.

Next, in order to use it for automatic hot water supply to the bathtub 1, it is sufficient to press the operating shaft 2γ from the 180° rotation position, which is the hot water supply position, and the water supply cam 35 is released from the pressed position of the water supply lever 33. At the same time, the water supply lever 33 is locked to the lowered swinging lever 38, and the water supply valve 29 is held in the open state.
Hot water supply to bathtub 1 continues.

The pressed state of the operating shaft 21 is maintained by the pin 49 engaging the ball 51.

On the other hand, during this operation, the combustion time of the main burner 5 is set using the time switch 48.

In this way, when the water level in the bathtub 1 reaches the set level, the spindle 45
The pin 41 at the tip pushes the swinging lever 38 upward, releases the locked state between the water supply lever 33 and the roller 39, and automatically restores the water supply lever 33.
Press to close and stop hot water supply.

Thereafter, the hot water in the bathtub 1 is heated and heated by the circulation heating section 3, and when the time set by the time switch 48 has elapsed, the thermoelectric circuit is opened, the safety valve 10 is closed, and combustion in the main burner 5 is stopped.

Next, when the water level in the bathtub 1 is above a certain level, the operating shaft 2γ is set to 90°.
If the water supply cam 35 is pushed and rotated from the 180° position to the 180° position, the water supply cam 35 will be removed from the pressed position of the water supply lever 33, so this will be an operation for circulating heating, and the main burner 5 will burn and the water in the bathtub 1 will be heated. (hot water) is circulated and heated.

As described above, the present invention divides the operation of the operating shaft that opens and closes the gas passage and the water supply waterway into a rotation operation and a pressing rotation operation, and when either one is operated, the water supply valve is opened and closed in conjunction with the operation,
On the other hand, a lock mechanism that holds the water supply valve in an open state and a release mechanism that releases the water supply valve from the lock mechanism at a set water level are provided,
When the operating shaft is moved in the axial direction at the hot water supply operation position, the pressure on the water supply valve by the water supply cam is released and the bellows mechanism holds it in the open state, allowing automatic hot water supply operation and circulation heating with a single shaft. The hot water supply operation and the hot water supply operation can be easily performed, and the normal hot water supply operation and the automatic hot water supply operation are separate operations during the hot water supply operation, which prevents erroneous operations during use and allows accurate operation.

In addition, since the automatic hot water supply operation is performed from the hot water supply operation position, the identification is clear and the operation is easy. Since a locking mechanism consisting of a locking body that is biased by a spring and protrudes in and out of the guide passage is provided to hold the operating shaft in a pressed state, the guiding mechanism for the operating shaft of this type of bathtub is extremely simple. Become.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is an overall configuration diagram, FIGS. 2 and 3 are partially cutaway side views and plan views of the main parts, and FIG. 4 is a diagram of the gas opening/closing mechanism. The vertical sectional view and FIG. 5 are developed views of the guide tool. 1...Bathtub, 3...Circulation heating section, 4
...Hot water supply 7J[] heating section, T...Opening/closing mechanism, 8...Gas passage, ;21...Operation axis, 29... ... Water supply valve, 30 ... Water supply channel, 36 ... Lock mechanism, 41 ... Release mechanism.

Claims (1)

[Claims] 1 A water supply valve with a valve rod protruding outside the water passage is placed in the water passage,
A water supply lever is provided with a water supply cam attached to an operating shaft that can freely rotate and move in the axial direction to open and close the gas opening/closing mechanism, and is pressed by the water supply cam and presses the valve rod to open the water supply valve. is provided, and the operation of the operating shaft includes a rotation operation in which the water supply cam opens and closes the water supply valve via the water supply lever, and a push rotation operation in which the water supply cam is rotated outside the water supply lever pressing position by moving in the axial direction. A guide tool is provided that has a guide passage divided into two sections and guides a pin fixed to the operating shaft, and the guide tool further moves the operating shaft in the axial direction from the water supply valve open position to move the water supply cam to the water supply lever suppression position. A pressure guide path is formed that moves downward from the position, and is normally pushed up by a disk attached to the operating shaft, and the pin moves through the pressure guide path. A locking mechanism consisting of a swinging lever that can freely swing to engage and hold the water supply lever in an open state, a diaphragm that operates at the set water level of the bathtub, a spindle that rises in conjunction with the diaphragm, and a force). A release mechanism is provided, and these two mechanisms are connected so that at a set water level of the bathtub, the spindle of the release mechanism pushes up the swinging lever of the locking mechanism to release the locking state of the swinging lever to the water supply lever. The pressure guide passage of the guide includes a locking body that is biased by a spring and protrudes into and out of the passage to engage with the pin moved in the passage and maintain the pressed state of the operating shaft. A circulating hot water bath kettle characterized by being provided with a locking mechanism for holding a pressing operation of an operating shaft from a water supply valve open position.