JPH053840U - An edging valve mainly used for bath kettles with water heaters - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] In an edging valve provided with an auxiliary valve mechanism, the number of parts for assembling the auxiliary valve mechanism is reduced, and errors in assembling each part The influence on the closing operation of the intake valve is reduced, and the closing operation of the auxiliary valve mechanism and the intake valve is swiftly and reliably performed. [Structure] The check valve a and the intake valve b are arranged in the valve chamber 3a so that the check valve a is in the upper position and the intake valve b is in the lower position, and the check valve a and the intake valve b are stored in the valve chamber 3a. The engaging claw portion 70 at the lower end of the hanging member 7 provided on the side and the engaging claw portion 80 at the upper end of the receiving member 8 provided on the upper surface side of the intake valve b allow the relative movement within a certain range. The intake valve b and the check valve a so that the intake valve b freely swings around the abutment point w between the engaging claw portion 70 and the engaging claw portion 80 as a fulcrum. The valve body 61 for the auxiliary valve of the auxiliary valve mechanism 6 and the valve seat 60 for the auxiliary valve are suspended from the check valve a, and the check valve a and the intake valve b are integrally provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention combines a check valve in the valve box that prevents water on the secondary side from flowing back to the primary side with an intake valve that opens the secondary side in the valve box to the atmosphere. It relates to an edging valve that is used mainly for bathtubs with a water heater so that the secondary side is opened to the atmosphere when the valve is opened.

More specifically, the edging valve targeted by the present invention has a check valve valve seat facing the check valve and an intake valve valve seat facing the intake valve in the valve box. , The check valve seat is located above and the intake valve seat is located below, and the intake valve is installed between the check valve and the intake valve. When the valve seat for the valve is closed, an auxiliary valve mechanism that opens and closes the communication between the atmosphere opening port controlled by the intake valve and the valve box lumen is provided. The present invention relates to an improvement of an rim valve in which the check valve is controlled to open when the valve rises and to close when the check valve lowers to the intake valve.

[0003]

[Prior Art]

 As shown in FIG. 1, the rim gate valve A of the above-described form is a primary valve that is connected to a hot water supply circuit 1a including a hot water supply heat exchanger h1 and a water amount sensor S via a solenoid valve SV. The pipe 1 on the side, the heat exchanger h2 for reheating, the circulation pump P, the flow switch SW, etc. are provided, and the reverse to the miscellaneous water circuit 2a for reheating the hot water in the bathtub B. These are provided so as to be connected to a secondary side pipe 2 connected via a stop valve V, and when negative pressure is generated on the primary side, the miscellaneous water in the bathtub B is used as a hot water supply circuit 1a. It is an edging valve that is used to reliably prevent backflow to the.

As described above, the rim valve A mainly used in the bathtub with a water heater is configured as shown in FIG. That is, the valve box 3 is provided with a communication port 30 communicating with the primary pipe 1 on the upper surface side of the valve chamber 3a provided in the valve box 3 so as to accommodate the check valve a and the intake valve b. An atmosphere opening port 32 that opens to the outside is provided on the lower surface side, and a communication port 31 that communicates with the secondary pipe 2 is connected to the side surface between the communication port 30 and the atmosphere opening port 32. A strainer accommodating chamber 3b communicating with the communication port 30 is provided above the valve chamber 3a, and a connection port 3c for connecting the primary side pipe 1 is formed therein.

A check valve a and an intake valve b are housed in the valve chamber 3 a, and a check valve valve seat 33 facing the check valve a is provided around the communication port 30. The valve chamber 3a is formed in an annular shape projecting downward from the ceiling, and an annular intake valve seat facing the valve chamber 3a side is formed around the atmosphere opening 32 at the bottom of the valve chamber 3a. 34 is arranged below the check valve valve seat 33 so as to be vertically opposed to the check valve valve seat 33.

Further, the check valve a has its valve shaft 40 thrust into the strainer housing chamber 3 b and is biased to the ascending side by the spring 41, so that the communication port 30 is caused by the spring pressure of the spring 41. The intake valve b is pressed against the intake valve valve seat 34 from above to close the atmosphere opening port 32, and the check valve a and the intake valve b are not checked. A shaft-cylindrical connecting member 4a having an abutment collar 4b provided at the lower end of the shaft a on the lower surface side of the valve a and a shaft-shaped connecting member 5 of a cage-shaped connection member 5 provided on the upper surface side of the intake valve b. The intake valve b is connected so as to follow the check valve a in a state in which the relative movement within the fixed range D is allowed by the slidable fitting with the provided axial hole-shaped coupling hole 50. is there.

Further, the auxiliary valve mechanism 6 provided between the check valve a and the intake valve b is an intake valve valve provided at the center of the intake valve b, the intake valve b being provided at the atmosphere opening 32. In the state of abutting against the seat 34, a small diameter communication hole c for communicating the atmosphere opening port 32 with the valve chamber 3a is provided, and a ring-shaped auxiliary valve valve seat 60 is formed on the upper end side thereof. The valve body 61 for the auxiliary valve, which is opposed to this, is formed of rubber or a synthetic resin material, and is held by a wrapping body 62 made of a metal material, and has a cylindrical tubular shape provided on the lower surface side of the check valve a. It is configured to be held in the inner cavity of the connecting member 4a so as to be tiltable and swingable in the left-right direction.

[0008]

[Problems to be solved by the device]

 The edge valve A described above was developed by the applicant in order to make it compact when used in a bathtub with a water heater.

In the edging valve A, the check valve a and the intake valve b are vertically opposed to each other in the valve chamber 3a and are connected to each other so that the check valve a and the intake valve b can move relative to each other in a certain range. By storing the check valve a, the check valve a pushes down the intake valve b, and when the check valve a is pressed against the intake valve seat 34, the check valve a leans laterally with respect to the intake valve b. The incomplete pressure contact of the intake valve b with the intake valve seat 34 is prevented by the swinging operation of the auxiliary valve valve body 61 of the auxiliary valve mechanism 6.

However, the auxiliary valve valve body 61 of the auxiliary valve mechanism 6 is set in a state in which the degree of freedom is provided in the inner cavity of the shaft-cylindrical coupling member 4a so as to freely swing laterally. By holding the auxiliary valve mechanism, the number of component inspections increases and the manufacturing cost increases, and errors due to the combination of each component are concentrated in the valve closing operation of the auxiliary valve mechanism 6, and the auxiliary valve mechanism 6 is closed. Since the valve is not operated promptly, the closing of the intake valve b will be delayed and there will be a problem of increasing the amount of drainage to the outside.

The present invention has been made in order to solve the problem occurring in this conventional means, and in the edging valve of the above-mentioned form, the auxiliary valve is closed due to the influence of the error in the combination of the respective parts. It is an object of the present invention to provide a new means that allows the closing operation of the intake valve to be performed promptly and accurately without reaching the valve operation.

[0012]

[Means for Solving the Problems]

 Further, in the present invention, as a means for achieving the above-mentioned object, the valve box is provided with a communication port on the upper surface side of the valve chamber provided therein for communicating with the primary side pipe. An atmosphere opening port that opens to the outside is provided on the lower surface side of the valve chamber, and a communication port that communicates with the secondary piping is provided between the atmosphere opening port and the communication port on the side surface of the valve chamber. A check valve and an intake valve are housed inside the check valve so that the check valve is in the upper position and the intake valve is in the lower position, and the check valve is located on the ceiling side of the valve chamber facing the check valve. A valve seat is provided, and an intake valve valve seat facing the intake valve is provided on the bottom surface so as to vertically oppose the check valve valve seat, and the intake valve serves as the intake valve valve seat. A small-diameter communication hole is formed to connect the atmosphere opening port to the valve chamber when pressed, and an auxiliary valve valve seat is provided at the upper end of the communication hole. On the lower surface side, a valve element for the auxiliary valve which faces the auxiliary valve valve seat and opens and closes the auxiliary valve valve seat is fixedly mounted, and the lower surface side of the check valve is engaged with the engaging claw on the lower end side. And a receiving member having an engaging claw portion engageably and disengageably engaged with the engaging claw portion at the upper end side on the upper surface side of the intake valve. The check valve and the receiving member are used to swing the intake valve to the check valve freely around the abutment point between the engaging claw of the hanging member and the engaging claw of the receiving member. It is mainly used in a bathtub with a water heater, which is supported by hanging it and also connects the check valve and the intake valve so that they can move relative to each other within a certain range and move up and down together. It proposes the edging valve to be used.

[0013]

【Example】

 Next, embodiments will be described in detail with reference to the drawings. The same reference numerals are used for the components having the same effects as those of the conventional means.

FIG. 4 is a vertical front view of an edging valve A used mainly in a bath with a water heater for implementing the present invention. In FIG. 4, 3 is a valve box and 3 a is a valve installed in the valve box 3. Chamber, 30 is a communication port communicating with the primary side, 31 is a communication port communicating with the secondary side, 32 is an atmosphere opening port communicating with the outside, a is a check valve, b is an intake valve, and c is a communication hole of small diameter. Reference numeral 6 is an auxiliary valve mechanism, 7 is a suspending member provided on the lower surface side of the check valve a, and 8 is a receiving member provided on the upper surface side of the intake valve b.

The main body of the valve box 3 is formed in the shape of a shaft cylinder with the axial direction being the vertical direction, and the valve chamber 3 a and the communication port 30 formed inside are formed in the upper part of the main body. A strainer accommodating chamber 3b that communicates with each other is formed. A connection port 3c for connecting to the primary side pipe 1 (see FIG. 1) is provided in the strainer accommodating chamber 3b in the shape of a branch pipe protruding laterally, and the bottom surface of the valve box 3 is also provided. On the side, a guide tube portion 3d is formed so as to extend the atmosphere opening port 32 downward. In addition, a connection tube 3e protruding in a side branch shape is formed in a side surface portion of the valve chamber 3a so as to extend a communication port 31 communicating with the secondary pipe 2 (see FIG. 1). A check valve 9 biased by a spring 90 so as to close the communication port 31 when the pressure in the valve chamber 3a is lowered is incorporated in the connecting cylinder 3e.

In the valve chamber 3a, a check valve a and an intake valve b are housed in a state in which they are vertically opposed to each other so that the check valve a is in the upper position and the intake valve b is in the lower position. In the valve a, a valve shaft 40 of the valve a projects into the strainer accommodating chamber 3b described above through an inner cavity of a guide sleeve 42 provided on a ceiling wall of the valve chamber 3a, and is disposed in the strainer accommodating chamber 3b. It is urged to be pulled upward by 41, so that the peripheral edge portion of the disc body 43, which is formed of rubber or a synthetic resin material in the shape of a disc, is formed on the ceiling wall of the valve chamber 3a. The check valve seat 33, which is formed in an annular shape around the communication port 30 on the lower surface side, is pressed by the spring pressure of the spring 41 to close the communication port 30. is there.

Further, the intake valve b has a cage-shaped sliding member 51 on the lower surface side, and the sliding member 51 slides on the above-mentioned guide tubular portion 3 d provided on the bottom of the valve box 3. It is fitted freely and is supported so that it can move up and down by this sliding. Then, by moving downward, the peripheral edge portion of the disc-shaped valve body 53 made of rubber or synthetic resin material is annularly formed around the atmosphere opening port 32 on the bottom surface of the valve chamber 3a. The valve seat 34 is pressed against the valve seat 34 to close the atmosphere opening port 32.

Further, the auxiliary valve mechanism 6 has the atmosphere opening port 32 inside the valve chamber 3a when the intake valve b closes the atmosphere opening port 32 at the axial center portion of the intake valve b. A small-diameter communication hole c communicating with each other is formed, an auxiliary valve valve seat 60 is formed on the upper end side thereof, and an auxiliary valve valve body 61 facing this is provided on the lower surface side of the check valve a. However, the auxiliary valve valve seat 60 is formed integrally with the valve body support fitting 54 to which the valve body 53 of the intake valve b is assembled.

Further, the auxiliary valve valve body 61 of the auxiliary valve mechanism 6 is a shaft which opens downward on the lower surface side of a protective plate made of a metal material to which the valve body 43 of the check valve a is assembled and held. Cylindrical valve holding cylinder 45 is integrally formed with the protection plate 44, and an auxiliary valve valve element 61 formed of rubber or a synthetic resin material is fitted into the inner cavity of the valve holding cylinder 45 and stopped. It is fixedly attached to the lower surface side of the check valve a by being fixed with the metal fitting 46.

The check valve a and the intake valve b are connected to each other by suspending a hanging member 7 on the lower surface side of the check valve a so as to be continuously and integrally suspended with the protective plate 44 made of the metal material. The hook-shaped engaging claw portion 70 is integrally formed on the lower end side thereof, and is integrally continuous with the valve body support fitting 54 made of a metal material on the upper surface side of the intake valve b. The engaging claw portion 80 is provided so as to project upward, and an engaging claw portion 80 that engages with the engaging claw portion 70 of the hanging member 7 is detachably provided on the upper end side thereof. The check valve a and the intake valve b are connected so as to move up and down together by the engagement of the engagement claw portion 70 and the engagement claw portion 80.

As a result, the check valve a and the intake valve b are formed by a gap formed between the lower surface of the engaging claw portion 70 of the hanging member 7 and the upper surface of the valve body support fitting 54 of the intake valve b. The distance between the intake valve b and the check valve a is made relatively movable within a range corresponding to the distance D, and the engagement claw portion 70 of the suspension member 7 and the engagement claw portion 80 of the receiving member 8 are opposed to each other. It is suspended and supported so that it can swing on its own with the joint point w as a fulcrum.

[0022]

[Action]

 The embodiment apparatus configured as described above operates as follows. When the hot water supply circuit 1a, which is the pipe 1 on the primary side, is kept at a predetermined pressure, the check valve a and the intake valve b in the valve chamber 3a are kept in the state shown in FIG.

Next, when the hot water supply circuit 1a communicating with the primary side pipe 1 becomes negative pressure due to water cutoff or the like, first, the check valve a rises by the pressure of the spring 41 by the distance D, and , The auxiliary valve mechanism 6 is opened.

As a result, when the back pressure applied to the intake valve b disappears, the check valve a and the intake valve b together move upward due to the spring pressure of the spring 41, and the check valve a The communication port 30 is closed, the intake valve b opens the atmosphere opening port 32, drops the water in the valve chamber 3a downward from the atmosphere opening port 32, and replaces it with the outside air. The edge between the pipe 2 and the pipe 2 is completely cut off.

Next, when the water pressure in the pipe 1 on the primary side is restored from this state, the check valve a is pushed down by the water pressure against the bias of the spring 41, and the communication port 30 is opened. And at the same time, the valve body 61 for the auxiliary valve provided on the lower surface thereof abuts the valve seat 60 for the auxiliary valve provided on the upper surface of the intake valve b, and the abutment causes the intake valve b to be opened. The push-down atmosphere opening 32 is closed.

Next, when the water pressure in the pipe 1 on the primary side is restored from this state, the check valve a is pushed down by the water pressure against the bias of the spring 41, and the communication port 30 is opened. And at the same time, the valve body 61 for the auxiliary valve provided on the lower surface thereof abuts the valve seat 60 for the auxiliary valve provided on the upper surface of the intake valve b, and the abutment causes the intake valve b to be opened. The push-down atmosphere opening 32 is closed.

At this time, the abutment of the auxiliary valve valve body 61 provided on the lower surface side of the check valve a with the auxiliary valve seat 60 provided on the upper surface side of the intake valve b causes the check valve a to move downward. In some cases, it may occur that the shaft cores are not aligned correctly and that they are tilted at an angle due to an error in the process. In this case, since the intake valve b is swingable with respect to the check valve a by the abutting point w between the engaging claw portion 70 of the hanging member 7 and the engaging claw portion 80 of the receiving member 8. The deviation of the intake valve b with the abutment point w as a fulcrum is absorbed, and thus the abutment between the auxiliary valve valve body 61 and the auxiliary valve valve seat 60 is correctly corrected and the auxiliary valve mechanism 6 is correctly operated. The valve will be closed.

[0028]

[Effect of the device]

 As described above, the rim cut valve according to the present invention, which is mainly used for the bathtub with the water heater, has the check valve a and the intake valve b, which are vertically opposed to each other in the valve chamber 3a, to allow relative movement within a certain range. In order to move them up and down together in an allowable state, the engaging claw portion 70 at the lower end of the suspension member 7 provided on the lower surface side of the check valve a and the receiving portion provided on the upper surface side of the intake valve b. By engaging with the engaging claw portion 80 at the upper end of the member 8, the intake valve b can freely move with respect to the check valve a with the abutting point w between the engaging claw portion 70 and the engaging claw portion 80 as a fulcrum. Since the auxiliary valve valve body 61 and the auxiliary valve valve seat 60 are mounted integrally on the check valve a and the intake valve b, respectively, so as to be rocked, they are assembled. The effect of reducing the number of parts and the error in assembling each part on the closing operation of the auxiliary valve mechanism 6 and the intake valve b is remarkable. Becomes smaller, the valve closing operation of the auxiliary valve mechanism 6 and the intake valve b to quickly and accurately, so can reduce the amount of water discharged to the outside.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a circuit of a bath kettle with a water heater using an edge valve.

FIG. 2 is a vertical sectional front view of a conventional edging valve.

FIG. 3 is a vertical cross-sectional front view showing a state in which the intake valve is opened.

FIG. 4 is a vertical sectional front view of an edging valve according to the present invention.

FIG. 5 is a vertical sectional front view showing a state in which the intake valve of the same is opened.

[Explanation of symbols]

A ... edging valve, B ... bathtub, a ... check valve, b ... intake valve, c
... Communication hole, w ... Abutting point, h1 ... Heat exchanger for hot water supply, h2
... Heat exchanger for reheating, S ... Water amount sensor, SV ... Electromagnetic valve, P ... Circulation pump, SW ... Slow switch, V ... Check valve, D ... Distance, 1 ... Piping, 1a ... Hot water supply circuit, 2 ... Piping,
2a ... water circuit for reheating, 3 ... valve box, 3a ... valve chamber, 3
b ... strainer accommodating chamber, 3c ... connection port, 3d ... guide tube portion, 3e ... connection tube, 30/31 ... communication port, 32 ... atmosphere opening port, 33 ... check valve seat, 34 ... intake valve Seat, 4
a ... connecting member, 4b ... abutting collar, 40 ... valve shaft, 41 ... spring, 42 ... guide sleeve, 43 ... valve body, 44 ... protective plate, 45 ... valve holding cylinder, 46 ... stopper metal, 5 ... connecting member ,
50 ... Connection hole, 51 ... Sliding member, 53 ... Valve body, 54 ... Valve body support metal fitting, 6 ... Auxiliary valve mechanism, 60 ... A valve seat for auxiliary valve, 6
DESCRIPTION OF SYMBOLS 1 ... A valve element for auxiliary valves, 62 ... Enclosing body, 7 ... Hanging member, 70
... engagement claws, 8 ... receiving members, 80 ... engagement claws, 9 ... check valves, 90 ... springs.

Claims (1)

[Claims for utility model registration] [Claim 1] The valve box 3 has a valve chamber 3 provided therein.
Communication port 3 that communicates with the primary side pipe 1 on the upper surface side of a
0 is provided, and an atmosphere opening port 32 for opening to the outside is provided on the lower surface side of the valve chamber 3a, and a pipe 2 on the secondary side is provided between the atmosphere opening port 32 and the communication port 30 on the side surface of the valve chamber 3a. A communication port 31 that communicates with each other is provided, and a check valve a and an intake valve b are arranged and stored in the valve chamber 3a such that the check valve a is positioned higher and the intake valve b is positioned lower. A check valve valve seat 33 facing the check valve a is provided on the ceiling side of the valve chamber 3a, and an intake valve valve seat 34 facing the intake valve b is provided on the bottom side of the check valve valve seat 3
3 so as to vertically face the intake valve 3 and the intake valve b
Is formed in pressure contact with the intake valve valve seat 34, a small-diameter communication hole c is formed for communicating the atmosphere opening port 32 with the valve chamber 3a, and the auxiliary valve valve seat 60 is provided at the upper end thereof. On the lower surface side of the check valve a, an auxiliary valve valve body 61 that faces the auxiliary valve valve seat 60 and opens and closes the auxiliary valve valve seat 60 is fixedly mounted, and the lower surface of the check valve a. Side, a suspension member 7 having an engaging claw portion 70 on the lower end side is provided so as to project downward, and the engaging claw portion 70 is provided on the upper end side on the upper surface side of the intake valve b.
A receiving member 8 having an engaging claw portion 80 that is disengageably engaged with is provided so as to project upward, and the intake member b is attached to the check valve a by the hanging member 7 and the receiving member 8. Abutment point w between the engaging claw portion 70 of No. 7 and the engaging claw portion 80 of the receiving member 8
It is characterized in that the check valve a and the intake valve b are connected so as to move up and down together by allowing relative movement within a certain range while being supported so as to swing freely around the fulcrum. An rim cut valve mainly used for bath kettles with water heaters.