JPH06105109B2 - Thermostat mixing valve - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a thermostat mixing valve for discharging a mixed water of a predetermined temperature by operating a control valve by a temperature sensing part sensitive to the temperature of the mixed water, and in particular, two discharge valves. The present invention relates to a thermostat mixing valve having a function of selectively switching discharge of mixed water from an outlet.

(Prior Art) Conventionally, a thermostat mixing valve of this type is known from Japanese Utility Model Publication No. 56-37176 shown in FIG.

Explaining what is shown in FIG. 8, the main body (A)
A water chamber (1), a hot water chamber (2), a mixed water chamber (10), a first discharge chamber (4) and a second discharge chamber (5) are provided, and the water chamber (1) and the hot water chamber (2) are provided. , The mixed water chamber (10) is connected to the mixed water chamber (10) via a control valve (C) that is operated by a temperature sensing unit (F) that is sensitive to the temperature of the mixed water to automatically control the mixed water temperature to a set temperature. 10) and the first discharge port (4) and the second discharge port (5) are connected to each other via the on-off valves (H) and (I), and one of the on-off valves (H) and (I) is opened. By opening the valve, the mixed water is made to flow into the discharge chamber (4 or 5) which has been opened.

Each of the valves (C) (H) (I) is operated by a dedicated handle (J) (K) (L).

Therefore, the above-mentioned conventional thermostat mixing valve is inevitably large in size due to the large number of handles.

(Problem to be Solved by the Invention) A problem to be solved by the present invention is to enable setting of the mixed water temperature and selective switching of the discharge side with one handle.

(Means for Solving the Problems) Technical means taken by the present invention to solve the above problems are to connect the water chamber and the hot water chamber, the mixing valve chambers respectively communicating with these chambers, and the mixing valve chambers respectively. A main body having a first discharge chamber and a second discharge chamber installed therein, a lever handle rotatably attached to the main body in left and right and up and down directions, water and a hot water chamber provided in the mixing valve chamber and flowing into the mixing valve chamber from the water chamber A control valve for controlling the proportion of hot water flowing into the mixing valve chamber from the mixing valve chamber, which is formed into a cylindrical shape with both ends open and is inserted and fixed in the main body, and which connects the inside to the mixing valve chamber and the first and second mixing valve chambers. A second liner having two discharge chambers separated from each other and having a first outlet opening in the first discharge chamber on a side peripheral portion, arranged in the first liner and linked to each other, and a valve body of a lever handle and a control valve. A temperature-sensitive part that is also linked to the valve body and moves the valve body forward and backward by rotating the handle in the left-right direction. And a seal member for sealing between the temperature setting portion and the first liner and an annular water passage are provided on the inner peripheral surface so as to be slidably inserted into the first liner, and linked to the lever handle. It moves up and down by rotation in the up-down direction,
The outlet is opened to the first discharge chamber, and in the lowered position, the annular water passage is aligned with the first outlet and the second outlet and the second outlet are provided through the second outlet provided at the bottom of the outlet. A second liner is provided which communicates with the chamber and closes the first outlet at the intermediate position.

(Operation) According to the above means of the present invention, the temperature is set by rotating the lever handle in the left-right direction, and the start and stop of the discharge and the switching of the discharge side are performed by rotating the lever handle in the vertical direction.

(Example) Hereinafter, one example of the present invention will be described with reference to the drawings.

In the figure, (A) is a main body, which is a first main body (A ₁ ) in which a water chamber (1) and a hot water chamber (2) are installed, a mixing valve chamber (3), a first discharge chamber (4), and It is composed of a second main body (A ₂ ) in which two discharge chambers (5) are installed.

The first main body (A ₁ ) is a hollow body that is long in the left-right direction when viewed from the front, and has a second main body attachment port (11) on the upper surface of the central portion in the left-right direction.

The water chamber (1) and the hot water chamber (2) are defined by the partition wall (12) on the left and right sides inside the first main body (A ₁ ).

The water chamber (1) and the hot water chamber (2) are vertically adjacent to each other with the water chamber (1) facing upward below the second main body attachment port (11). An opening (13) is formed in the partition wall (12) coaxially with the second main body attachment port (11).

On the other hand, the second main body (A ₂ ) is a hollow body whose both ends in the axial direction are open, and the halfway portion in the axial direction is screwed into the second main body attachment port (11) of the first main body (A ₁ ) to form a half part. Is inserted into the first main body (A ₁ ), and the other half part thereof projects upright from the upper surface of the first main body (A ₁ ).

The second body (A ₂ ) is formed so that the outer diameter of the portion to be inserted into the first body (A ₁ ) is the same as the opening (13) of the partition wall (12), and the opening (13) is inserted therethrough. And extends into the hot water chamber (2), and its end is closed by a blind lid (14). The second body (A _2), the portion protruding step from the first body (A ₁₎ (1
The second main body attachment port (11) is formed to have a larger diameter than the second main body attachment port (5), and a currant (16) and a shower discharge port (17) are formed in a protruding shape on the side peripheral surface thereof. A cap (19) is rotatably provided on the upper end of the second body (A ₂ ) via a step ring (18) screwed to the inner circumference of the opening.

The mixing valve chamber (3) is formed in a portion of the second main body (A ₂ ) that is inserted into the first main body (A ₁ ), and a water passage hole (20) formed in the peripheral surface of the portion, The water chamber (1) and the hot water chamber (2) are connected to each other through the hot water passage (21).

Then, the mixture valve chamber (3) flows into the mixing valve chamber (3) from the water chamber (1) and the hot water chamber (2) through the water passage hole (20) and the hot water passage hole (21). A control valve (C) for controlling the ratio of water to hot water is provided.

The first discharge chamber (4) is formed adjacent to and above the mixing valve chamber (3) via the first partition wall (22) and communicates with the calan (16).

The first partition wall (22) is provided slightly below the step portion (15).

The second discharge chamber (5) is formed adjacent to and above the first discharge chamber (4) through the second partition wall (23), communicates with the shower discharge port (17), and has an upper portion of the third discharge chamber (5). Is separated from the opening at the upper end of the second body (A ₂ ).

The openings (22 ') (2
3 ') (24') are opened coaxially.

The control valve (C) is a water side valve seat (25) formed on the lower surface of the first partition wall (22), and a hot water side valve formed on the inner surface of the blind lid (14) facing the water side valve seat (25). Seat (26) and both valve seats (25)
The control valve element (7) is disposed between (26) and corresponds to both valve seats (25) and (26), respectively, and the control valve element (7) is
Between the water passage hole (20) and the hot water passage hole (21), it is slidably brought into contact with an annular partition wall (27) formed on the inner peripheral surface of the mixing valve chamber (3), and will be described later. The water side valve seat (25) is linked to the temperature sensing part (E) and is connected to the first spring (28).
Is biased in the direction.

The hot water flowing through the hot water through hole (21) into the control valve body (7) and flowing into the mixing valve chamber (3) through the gap between the hot water valve seat (26) and the control valve body (7). A through hole (30) for allowing the liquid to flow into a mixing chamber (29) formed in a first liner (D) described later is formed.

The first liner (D) is formed in a cylindrical shape with both ends in the axial direction open, and divides the mixing valve chamber (3) and the first discharge chamber (4) of the second main body (A ₂ ) from each other. Partition wall (22) and step (1
A second screwing part (31) provided on an inner peripheral surface between the first discharging chamber (4) and the second discharging chamber (5).
Partition wall (23) and a second discharge chamber (5) and the second body (A ₂₎ the third opening of the partition wall (24) separating the opening of the upper end (23 ') (2
4 ') is loosely inserted and extends upward, and projects upward from the opening at the upper end of the second main body (A ₂ ).

The first liner (D) has the same outer diameter as the openings (23 ') (24) of the second partition wall (23) and the third partition wall (24) and the outer diameter of the first liner (D). Second cylindrical shape having the same inner diameter
The liner (G) is slidably inserted, and the outer peripheral surface of the second liner (G) slidably comes into close contact with the inner peripheral surfaces of the two openings (23 ') and (24').

Further, the first liner (D) is provided with a partition (32) in the upper middle part thereof, and a mixing chamber (29) is formed below the partition (32), and inside the mixing chamber (29). The temperature sensing part (E) is housed in the inside of the housing and the bush (33) is screwed onto the inner peripheral surface above the partition (32).

Further, the first liner (D) has a first outlet port (6) formed in the peripheral surface of the mixing chamber (29) in a portion that vertically extends through the first discharge chamber (4) and the center of the partition (32). A temperature sensing portion receiving hole (34) is opened in the.

The bush (33) has a bottomed cylindrical shape with a through hole (35) opened at the center of the bottom, and is screwed to the first liner (D) with the opening facing upward, and the upper part is the first liner (D). Project upward from the opening. A lever handle (B) is connected to an upper portion of the bush (33) protruding from the first liner (D) via an operation cap (36).

Further, the bush (33) accommodates the temperature sensitive portion retainer (37) therein, and the temperature sensitive portion retainer (37) is elastically pressed toward the bottom by the second spring (38) which is stronger than the first spring (28). To do.

The second spring (38) is mounted over the flange portion formed on the peripheral edge of the temperature sensitive portion retainer (37) and the ring (39) attached to the inner peripheral surface near the opening of the bush (33). .

The temperature-sensitive part (E) encloses wax pellets as a temperature-sensing body in a body (41) having a protruding shaft (40) that can be retracted and retracted, and the protruding shaft (40) is mounted by thermal expansion of the wax pellet. It has a conventionally well-known structure for projecting and extending from the body (41), and is housed and arranged in the mixing chamber (29) of the first liner (D) so as to be slidable in the axial direction of the chamber, and one end thereof is disposed. It extends into the mixing valve chamber (3) and abuts and locks against the control valve body (7), and the other end is inserted into the temperature sensing part receiving hole (34) of the partition (32) to insert the protruding shaft (40). Abut on the temperature-sensitive part retainer (37).

On the other hand, the second liner (G) has a pair of holding pieces (42) extending upright on the end face of the upper opening, and the holding pieces (42) are extended.
A pair of bearing holes (43) are coaxially opened relative to each other, and the support shaft (44) of the lever handle (B) is supported by the bearing holes (43).

Further, the second liner (G) has an annular first groove (45) formed along the inner peripheral surface slightly above the lower end thereof, and on the inner peripheral surface slightly above the first concave groove (45). Similarly forms a water passage (8) consisting of a second groove, and a second outlet (9) is bored in the bottom surface of the water passage (8). Second outlet (9)
Corresponds to the second discharge chamber (5).

Further, in the second liner (G), between the first groove (45) on the inner peripheral surface thereof and the lower end of the second liner (G), the first groove (45) and the water passage (8) are formed. An annular seal member mounting groove (53) is provided at three positions between the water passage (8) and the upper end of the second liner (G), and a seal member (O-ring is provided in the groove (53) ( 54) is fitted. In the lever handle (B), an engaging portion (48) having a cap engaging hole (47) and a support shaft (44) is extended at the tip of the operating lever portion (46), and the engaging hole (47) is provided. It is provided by engaging the outer peripheral surface of the operation cap (36) and inserting the support shaft (44) into the bearing hole (43) of the second liner (G), and the operation lever portion (46) of the cap (19). It extends through the side peripheral surface to the outside of the main body (A).

The engagement hole (47) has a straight line portion (a) parallel to a part of the hole edge, and the pair of support shafts (44) is provided on the side end surface of the engagement portion (48).

Further, the operation lever portion (46) extends obliquely upward with respect to the engagement portion (48).

The operation cap (36) is put on the upper part of the bush (33),
Mutual rotation is prevented by the engagement of the spline (49) formed on the outer peripheral surface of the bush (33) and the inner peripheral surface of the operation cap (36).

The outer peripheral surface of the operation cap (36) is formed in a flat hexagonal shape, and a pair of parallel straight line portions (b) facing each other are straight line portions (a) of the engaging hole (47) of the lever handle (B). )
Corresponding to, prevent mutual rotation of both. The bush (33), the temperature sensitive portion retainer (37) and the second spring (38) constitute a temperature setting portion (F).

In this thermostat mixing valve, therefore, when the lever handle (B) is rotated left and right, the operation cap (36) is rotated, and the bush is engaged with the operation cap (36) by the spline (49). The (33) moves up and down to move the position of the temperature sensitive portion retainer (37) housed therein up and down.

Then, when the temperature sensitive portion presser (37) moves upward,
The control valve element (7) is connected to the hot water valve seat (26) through the temperature sensing section (E).
Since the force pushing to is released, the control valve body (7) is
The force of the spring (28) moves the temperature sensing part (E) to the water side valve seat (25) side again until it comes into contact with the temperature sensing part retainer (37). Further, when the temperature sensing part retainer (37) moves downward, the control valve body (7) is pushed out to the hot water side valve seat (26) side via the temperature sensing part (E), and the valve seat (26) side Move to.

That is, the temperature of the mixed water is set by rotating the lever handle (B) left and right.

If the temperature of the mixed water in the mixing chamber (29) fluctuates in this state, the temperature sensing part (E) operates like the conventional thermostat mixing valve to automatically correct the position of the control valve body (7) and mix water. Maintain the temperature at the set temperature.

On the other hand, when the lever handle (B) is moved in the vertical direction, the engaging portion (48) moves up and down in the opposite direction to the operation lever portion (46) with the portion where the cap (19) is inserted as a fulcrum, and the second liner (G). Move up and down.

That is, when the lever handle (B) is pushed down, the second liner (G) is pulled up. At this time, the lower end of the second liner (G) has the first outlet (6) of the first liner (D).
Positioned higher, therefore, the mixed water flows from the mixing chamber (29) through the first outlet (6) into the first discharge chamber (4),
It flows to Karan (16).

When the lever handle (B) is pulled up, the second liner (G) is pushed down. At this time, the water passage (8) of the second liner (G) corresponds to the first outlet (6), and the mixed water passes from the mixing chamber (29) through the first outlet (6) to the water passage (8). Flows into the inside, and then through the second outlet (9) to the second
It enters the discharge chamber (5) and flows to the shower discharge port (17).

When the lever handle (B) is at the upper and lower intermediate position, the second liner (G) is also at the upper and lower intermediate position, and in this state, the first groove (45) corresponds to the first outlet (6). is doing.

Since the first groove (45) has a closed chamber shape, in this state, the mixed water does not flow into the first and second discharge chambers (4) and (5), and the water is stopped.

That is, the present thermostat mixing valve can start and stop water discharge and selectively switch the discharge side by vertically rotating the lever handle (B).

In the figure, (50) and (51) are water and hot water connection leg pipes for connecting the water chamber (1) of the first main body (A ₁ ) to the water supply pipe and the hot water chamber (2) to the hot water supply pipe, respectively. , (52) are stopper rings for restricting the rotation range of the cap (19), in other words, the left-right rotation range of the lever handle (B).

(Effects) The present invention having the above-mentioned configuration has the following advantages.

(1) Since the temperature can be set, the discharge can be started and stopped, and the discharge ports for discharging can be switched with one lever handle, it is not necessary to provide a plurality of handles, and the size can be reduced.

(2) Since the seal member that seals between the first liner and the second liner is provided on the inner side surface of the second liner that is externally inserted on the first liner, it is possible to prevent the seal member from being bitten and cut. To do this, the edge processing of the first outlet of the first liner may be performed on the outer surface side of the first liner, and the edge processing is easy.

(3) Further, as described above, the seal member for sealing between the first liner and the second liner is provided on the second liner side, and the water passage is also provided on the second liner side provided with this seal member. The thickness of the second liner inevitably becomes thicker, and the water passage can be secured by the increased thickness, and the second liner can be made more compact than the case where the water passage is provided on the first liner side.

[Brief description of drawings]

1 is a longitudinal sectional front view of a thermostat mixing valve in a water-stopped state showing an embodiment of the present invention, and FIG.
II-II cross-sectional view, FIG. 3 is a III-III cross-sectional view of FIG. 1, FIG. 4 is an exploded perspective view of the main part, and FIG. 5 is a state in which hot water and water are mixed and the mixed water is discharged from the currant. 6 is a vertical front view of FIG.
FIG. 6 is a cross-sectional view taken along the line VI-VI, FIG. 7 is a cross-sectional view showing a state of being discharged from the shower discharge port shown in the same section as FIG. 6, and FIG. 8 is an example of a conventional thermostat mixing valve. It is sectional drawing shown. (A): Main body, (B): Lever handle (C): Control valve, (D): First liner (E): Temperature sensing part, (F): Temperature setting part (G): Second liner, ( 1): water chamber (2): hot water chamber, (3): mixing valve chamber (4): first discharge chamber, (5): second discharge chamber (6): first outlet, (7): valve Body (8): Water passage, (9): Second outlet. (54): Seal member

Continuation of front page (56) Reference JP-A-60-249784 (JP, A) JP-A-61-55484 (JP, A) JP-A-55-86971 (JP, A) JP-A-55-86972 (JP , A) Actual development Sho 59-101072 (JP, U)

Claims (1)

[Claims] 1. A water chamber and a hot water chamber, a mixing valve chamber that connects these chambers respectively, and a main body in which a first discharge chamber and a second discharge chamber that communicate with the mixing valve chamber are installed, and the main body has left and right and up and down directions. A lever handle rotatably attached to the mixing valve chamber, a control valve installed in the mixing valve chamber to control the ratio of water flowing from the water chamber into the mixing valve chamber and hot water flowing from the hot water chamber into the mixing valve chamber, a cylinder with both ends open Formed into a shape and inserted and fixed in the main body,
While connecting the inside to the mixing valve chamber, the mixing valve chamber and the first and second
A first liner, which is isolated from the discharge chamber and has a first outlet opening to the first discharge chamber on the side peripheral surface, is arranged in the first liner and cooperates with each other, and a lever handle and a valve of a control valve. Provided on the inner peripheral surface with a temperature sensing part and a temperature setting part which are also linked to the body and which move the valve body forward and backward by rotating the lever handle to the right, and a sealing member which seals between the first liner and an annular water passage. Is slidably inserted into the first liner, and is linked to the lever handle to move up and down by the vertical rotation of the lever handle. In the raised position, the first outlet is opened to the first discharge chamber, and in the lowered position. In the above, in the above-mentioned annular water passage, the first outlet and the second discharge chamber are made to communicate with each other via the second outlet which is aligned with the first outlet and is formed at the bottom of the first outlet, and the first flow is provided at the intermediate position. Second to block the outlet
A thermostat mixing valve characterized by comprising a liner.