JPS5820850Y2 - Remote control device for one-can two-circuit circulating hot water bath pot - Google Patents

Description

[Detailed description of the invention] This invention relates to a remote control device for a one-can, two-circuit circulating hot water bath pot, and the handle can only be turned from the hot water supply process to the circulation heating process by pressing the handle once. As a result, the user may accidentally turn the handle too much without water being supplied to the bathtub during hot water supply, resulting in the bath being left unheated. In this case, in the preparatory state for hot water supply, in which the main gas valve is kept open and the hot water supply mode can be immediately started by simply opening the bell at the appropriate location, the remote control unit will display the hot water supply preparation state. It is possible to distinguish whether the system is in the cyclic heating state or in the circulating heating state only by the position of the handle, and it is extremely easy for an inexperienced person to misoperate the system. Switching can be easily performed using a remote control unit.

To explain this specifically regarding one embodiment of the drawings, 1
is a separate body consisting of a heat exchanger 2 for hot water supply, a heat exchanger 3 for circulation heating, and a shared fin 4, and a heat exchanger 2 for hot water supply is placed below the heat exchanger 3 for circulation heating, and a heat exchanger 2 for common use is installed. It is integrally composed of 4 parts.

5 and 6 are water inlet pipes connected to the hot water heat exchanger 2, respectively;
This is a hot water outlet pipe, and the water inlet pipe 5 is provided with a hydraulic response device 7 that is activated by water flow.

A hot water supply head 8 is provided at the tip of the hot water outlet pipe 6.

Reference numeral 9 denotes a gas supply pipe leading to the main burner 10 and the pilot burner 11 arranged below the detached body 1, and the thermoelectric gas is kept open by the thermoelectromotive force of the thermocouple 12 facing the pilot burner 11 at the most upstream side. A pilot gas supply pipe 14 and a main gas supply pipe 15 are provided by branching the downstream side of the ignition safety valve 13.The pilot gas supply pipe 14 is provided with a pilot gas valve 16, and the main gas supply pipe 15 is provided with a pilot gas supply pipe 14 and a main gas supply pipe 15 from the upstream side. A gas valve 17 and a hydraulically responsive valve 18 associated with the hydraulically responsive device 7 are provided, respectively.

Reference numeral 19 denotes an operating shaft for opening and closing each of the valves, including a safety valve cam 20 and a pilot valve cam 21 for opening and closing the thermoelectric ignition safety valve 13, pilot gas valve 16, and main gas valve 17, respectively. A main valve cam 22 and a switching cam 23 for opening and closing a switching valve, which will be described later, are attached.

The hydraulic response valve 18 has one end facing the main gas valve 17 and the other end engaged with the connecting rod 24 of the hydraulic response device 7.

25 is a valve rod fixed to the main gas valve 17.

The main valve cam 22 has stepped portions a and l as shown in FIG.
), and during the hot water supply process, which will be described later, the valve rod 25 of the main gas valve 17 engages with the stepped portion a to open the main gas valve 17, and during the circulation heating process, the stepped portion presses the valve rod 25 further. The valve is moved so as to come into contact with the hydraulically responsive valve 18, and the hydraulically responsive valve 18 is pressed open.

Reference numerals 26 and 27 designate a first gas passage and a second gas passage, which are arranged in parallel by branching the main gas supply pipe 15 downstream of the water pressure responsive valve 18, respectively, and the first gas passage 26 is configured to restrict the gas flow rate. An orifice 28 is provided, and the second gas passage 27 is provided with a switching valve 30 that opens and closes a branch port 29 that allows the main gas supply pipe 15 and the second gas passage 27 to communicate with each other.

The switching valve 30 is biased by a spring 31 in a direction that always closes the branch port 29, and as described later, it is opened during the hot water supply process to supply gas to the second gas passage 27, and closed during the circulation heating process. This is to cut off the gas supply to the second gas passage 27.

32 is a front pipe arranged in front of the main burner 10, and the inside is divided into two chambers A and B by a partition wall 34 provided with a passage 33. A nozzle 35 is provided on the A side, and the A The first gas passage 26 and the B chamber are connected to the second gas passage 27 so as to communicate with each other.

36 opens and closes the vent 33 to supply and shut off a large flow of gas that has passed through the second gas passage 27 (as mentioned above, the second gas passage 27 is not provided with an orifice) to the A chamber having the nozzle. The spring 37 is used to keep the opening 33 open at all times.

The operating stroke of the operating shaft 19 is as shown in FIG.
At 0' rotation, the safety valve cam 20 opens the thermoelectric ignition safety valve 13 and the pilot valve cam 21 opens the pilot gas valve 16, resulting in a pilot ignition stroke. When the main gas valve 17 is opened by a, the hot water supply valve 8 is opened and water is passed, the water pressure response valve 18 is opened in conjunction with the water pressure response device 7, and the main burner 10 starts combustion, resulting in a hot water supply process, and then continues. After the valve rod 25 of the main gas valve 17 comes into contact with the hydraulically responsive valve 18 by the stepped portion of the main valve cam 22 by rotating the valve 90', the hydraulically responsive valve 18 is held open and the main burner 10 is powered. It consists of a sequence of cyclic heating steps that supply

The switching cam 23 is formed so that the switching valve 30 opens during the hot water supply process and closes during the circulation heating process.

Reference numeral 38 denotes a remote control device for rotating the operating shaft 19 and opening/closing the capacity switching valve 36 from a remote location, and is configured as follows.

That is, 39 is a remote control main body, which is pressed to the wall surface with a nut 40.

A remote control shaft 41 transmits the rotation of the handle 42 to a pulley 43.

Reference numeral 44 designates a shaft portion of the handle 42, and a groove 45 is provided between the inner layers in the axial direction, and this groove 45 is engaged with a locking portion 46 provided around the outer periphery of the remote control shaft 41. It can be slid freely.

Numeral 47 is a bin guide screwed onto the remote control shaft 41, and a substantially □-shaped bin guide hole 48 is bored in the axial direction at a proper location.

49 is a push button with a pin 50 fixed in place,
The pin 50 is engaged with the bin guide hole 48 and inserted into the bin guide 47 so as to be slidable in the axial direction, and after being pressed until it hits the pin, it is locked by rotating slightly clockwise.

51 is a guide pin fixed to the remote control main body 39;
Guide groove 5 carved around the outer periphery of the shaft portion 44 of the handle 42
2 is arranged in a fixed relationship with this guide pin 51.

The developed view of this guide groove 52 is as shown in FIG. 5, and when the handle is rotated during the hot water supply process, the handle 4
The rotation of the operating shaft 19 from the hot water supply stroke to the circulation heating stroke after this rotation is prevented is as follows:
The handle 42 is configured such that once the handle 42 is pressed, it can be rotated by 90 degrees during the circulation heating process.

Reference numeral 53 denotes a spring that biases the handle 42, and when the handle 42 is returned from the circulation heating process to the hot water supply process, the engagement state between the guide pin 51 and the guide groove 52 changes instantly by simply loosening the pressure of the hand. This is to enable rotation to the stop position.

54 is a boo 1144 attached to the pulley 43 and the operating shaft 19
A rotation wire 55 connects the push button 49 and the capacity switching valve 36 and transmits the rotation of the handle 42 to the operating shaft 19.
This is a push wire that connects the press button 49 and transmits the pressure of the push button 49 to the capacity switching valve 36 to close the capacity switching valve 36.

56 is a spring, and 57 is a knob attached to the push button.

Note that a hole C is formed in the handle 42 so that the rotation of the handle 42 and the pressing of the push button 49 are not related to each other.

58 is a bathtub. The present invention has the above-mentioned configuration. First, when the handle 42 is turned 90' from a stopped state, the thermoelectric ignition safety valve 13 and the pilot gas valve 16 are opened, the pilot burner 11 is ignited, and the pilot flame heats the pilot flame. The thermoelectric ignition safety valve 13 is held open by the thermoelectromotive force of the thermocouple 12.

Next, when hot water is to be supplied, the main gas valve 17 is opened by turning the main gas valve 17 by a further 90 degrees, and then the hot water supply valve 8 is opened to allow water to flow through, and the hydraulic response device 7 is activated. is opened, the main burner 10 burns, and hot water is used. During this rotational operation, the switching valve 30
is opened, so the gas also passes through the second gas passage 27. At this time, if the capacity switching valve 36 is opened, a large flow of gas is supplied, resulting in high-capacity hot water supply, and if it is closed, the gas passes through the first gas passage 26.
The flow is restricted by the orifice 28, resulting in a small flow rate and a small capacity hot water supply.

By the way, as mentioned above, since the rotation of the handle 42 and the pressing of the push button 49 are not related to each other, the capacity can be changed at any time when hot water is being used.

Next, when using circulation heating, after filling the bathtub 58 with water, ignite the pikes 1 and turn the handle 42 to the hot water supply position. The hydraulic response valve 18 is forcibly opened via the valve 17, and the gas flows through the main gas supply pipe 15. However, the switching valve 30 is once opened during the hot water supply process, but is closed again during the circulation heating process, so that the gas does not flow. Flowing only through the first gas passage 26 and being pierced by the orifice 28,
The combustion capacity becomes small, and at this time the capacity switching valve 36
Gas does not flow through the second gas passage 27 even if it is opened and closed.

Therefore, circulating heating can be performed with a predetermined small input from the orifice, and even if water is not flowing through the hot water heat exchanger 2, the tips of the fins 4 will not be abnormally overheated, and the durability of the separated body will be reduced. It will improve.

In addition, when operating the handle 42 from the hot water supply process to the circulation heating process, the handle 42 cannot be rotated unless it is pressed, so if you use the hot water supply without water being supplied to the bathtub 58, you may accidentally turn the handle 42 too much and the bathtub There is no such thing as causing dry firing.

Of course, when using circulating heating, if the hot water supply switch 8 is opened, circulating heating and hot water supply can be used simultaneously.

Further, in this embodiment, the hot water supply circuit has a first-stop type configuration, but a first-stop type configuration has the same effect and there is no problem.

As described above, the present invention provides a remote control device for a one-can, two-circuit circulating hot water bath pot that has a heat exchanger for hot water supply, a heat exchanger for circulating heating, and a common fin for these. It is configured so that it can be freely performed independently of the rotation of Since it cannot be rotated unless pressed, when using hot water, you can freely switch the capacity depending on the purpose of use to obtain the appropriate temperature.On the other hand, during circulation heating, it burns in a predetermined small implant with an orifice. It has excellent performance, such as the tip of the fin not being overheated and the durability of separating the parts being extremely improved.

Moreover, when using the hot water supply, the handle stops reliably at the hot water supply use position, so there is no chance of accidentally turning the bath too much and causing the bath to run dry, which is excellent in terms of safety.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is an overall configuration diagram, FIG. 2 is a vertical sectional view of a remote control device, and FIG. 3 is a perspective view showing the configuration of a capacity switching section in the remote control device. Fig. 4 is a perspective view showing the engagement state of the guide groove and the guide pin;
The figure is a developed view of the guide groove, FIG. 6 is an explanatory view showing the operation stroke of the handle, and FIG. 7 is a plan view of the main valve cam. 19... Operation axis, 36... Capacity switching valve, 38... Remote control device, 42... Handle, 55... Push wire .

Claims (1)

[Scope of utility model registration request] The operating stroke of the operating shaft consists of the pilot ignition stroke, hot water supply stroke, and circulation heating stroke in the order of the pilot ignition stroke, hot water supply stroke, and circulation heating stroke, and a capacity switching valve that enables high-capacity hot water supply and small-capacity hot water supply during hot water supply is installed, and the combustion capacity during circulating heating is A remote control device having a handle for remotely controlling the operating shaft is provided in a one-can, two-circuit circulating hot water bath boiler in which the combustion capacity is made to be the same as the combustion capacity during small capacity hot water supply regardless of the opening and closing of the capacity switching valve. The remote control device is provided with a push button that opens and closes the capacity switching valve via a push wire, and also prevents the handle from rotating at the end of the rotation operation of the hot water supply process, and after blocking the rotation. A remote control system for a one-pot, two-circuit type circulating hot water bath boiler, characterized in that a guide pin and a guide groove are arranged in a mutually securing relationship to enable rotational operation of the circulation heating process after pressing the handle. Operating device.