JP7635773B2 - Faucet valve device - Google Patents

Description

The present invention relates to a faucet valve device, and in particular to a faucet valve device suitable for achieving motorization of both temperature regulation and flow rate regulation.

The applicant has already achieved motorization of the flow control valve (Patent Document 1). In this flow control valve, the rotation of the stepping motor is converted into linear movement of the pilot valve body by a lifter.

JP 2017-201200 A

However, no suitable faucet valve device has yet been proposed that is suitable for achieving motorization of both temperature and flow rate adjustment.

The flow control valve in Patent Document 1 is suitable for motorizing flow control, but in order to adjust the temperature, it is necessary to control the two flow control valves independently, and there is a problem in that control becomes complicated in order to change the temperature without changing the flow rate, or to change the flow rate without changing the temperature.

The present invention was conceived against the background described above. The object of the present invention is to provide a faucet valve device suitable for achieving motorization of both temperature regulation and flow rate regulation.

The present invention includes a cylinder body formed in a hollow cylindrical shape,
A water inlet hole, a hot water inlet hole, and a hot and cold water outlet hole are provided in the peripheral wall of the cylinder body, respectively;
a housing body that accommodates the cylinder body so as to be axially movable and rotatable;
a water supply passage, a hot water supply passage, and a hot and cold water outflow passage, each of which is provided so as to communicate with an internal space of the housing body;
A first operating portion provided rotatably on one axial side of the cylinder body;
A second operating portion provided on the other axial side of the cylinder body so as to be rotatable;
Equipped with
The cylinder body is adapted to change a rotational position without changing an axial position by a rotational operation of the first operating part, and is adapted to change an axial position without changing a rotational position by a rotational operation of the second operating part,
This faucet valve device is characterized in that both temperature adjustment and flow rate adjustment are achieved by changing the amount of communication between the water supply passage and the water inlet hole, the amount of communication between the hot water supply passage and the hot water inlet hole, and/or the amount of communication between the hot water/water outlet hole and the hot water/water outlet passage depending on the axial position and rotational position of the cylinder body.

According to the present invention, both temperature adjustment and flow rate adjustment are achieved according to the axial position and rotational position of a common cylinder body, so a compact faucet valve design can be realized. In addition, since there is no hindrance to the motorization of the first operating unit and the second operating unit, it is suitable for realizing the motorization of both temperature adjustment and flow rate adjustment.

In the present invention, for example, the ratio of the amount of communication between the water supply passage and the water inlet hole and the amount of communication between the hot water supply passage and the hot water inlet hole is changed by rotating the first operating unit, thereby realizing temperature adjustment, and the total amount of communication, which is the sum of the amount of communication between the water supply passage and the water inlet hole and the amount of communication between the hot water supply passage and the hot water inlet hole, is changed by rotating the second operating unit, thereby realizing flow rate adjustment.

Alternatively, conversely, the flow rate can be adjusted by rotating the first operating unit to change the total communication amount, which is the sum of the communication amount between the water supply channel and the water inlet hole and the communication amount between the hot water supply channel and the hot water inlet hole, and the temperature can be adjusted by rotating the second operating unit to change the ratio of the communication amount between the water supply channel and the water inlet hole and the communication amount between the hot water supply channel and the hot water inlet hole.

Furthermore, it is preferable that the first operating unit and the second operating unit can be rotated simultaneously, and when the first operating unit and the second operating unit are rotated simultaneously, the cylinder body changes its rotational position while changing its axial position.

By operating the first and second operating parts simultaneously, it is possible to achieve faster temperature and flow rate adjustments.

It is also preferable that the cylinder body is connected to a shaft body, the rotational position of which is changed by the rotational operation of the first operating unit without changing the axial position, and the axial position of which is changed by the rotational operation of the second operating unit without changing the rotational position.

This allows the control for changing the position of the cylinder body to be achieved with a relatively simple configuration that controls the position of the shaft body.

It is also preferable that the device further includes a first connecting member that is connected to or integrated with the shaft body and fixed in a rotational direction relative to the first operating part, and that the first connecting member is installed so as to be movable in the axial direction relative to the first operating part.

This ensures that the rotational operation of the first operating part can be transmitted reliably as a rotational force of the shaft body, while the presence of the first connecting member does not impede the operation of the second operating part.

It is also preferable that the device further includes a direction change member that converts the rotational operating force of the second operating part into an axial moving force, and a second connecting member that is connected to the shaft body and receives the axial moving force converted by the direction change member, and that the shaft body is installed so as to be rotatable relative to the second connecting member.

This ensures that the rotational operation of the second operating part can be transmitted reliably as an axial moving force of the shaft body, and the presence of the second connecting member does not impede the operation of the first operating part.

It is also preferable that the device further comprises a restricting member capable of adjusting the rotational range of the second operating portion as desired.
According to this, the range of motion of the axial position of the cylinder body relative to the housing body can be adjusted by adjusting the rotational range of motion of the second operating part using the regulating member, so that the desired flow rate adjustment or temperature adjustment can be achieved even if there are individual variations in each part based on manufacturing tolerances, etc.

According to the present invention, both temperature adjustment and flow rate adjustment are achieved according to the axial position and rotational position of a common cylinder body, so a compact faucet valve design can be realized. In addition, since there is no hindrance to the motorization of the first operating unit and the second operating unit, it is suitable for realizing the motorization of both temperature adjustment and flow rate adjustment.

1 is a schematic perspective view of a water faucet valve device according to one embodiment of the present invention; 1 is a schematic front view of a faucet valve device according to an embodiment of the present invention. 1 is a schematic vertical sectional perspective view of a water faucet valve device according to an embodiment of the present invention; 1 is a schematic vertical cross-sectional view of a water faucet valve device according to an embodiment of the present invention. FIG. 5 is an enlarged view of a cylinder body portion of FIG. 4 . FIG. 2 is a schematic perspective view showing a cylinder body and a shaft body of the embodiment. FIG. 2 is a schematic perspective view of a water side auxiliary pipe member of the present embodiment (the same applies to a hot water side auxiliary pipe member). 8A and 8B are diagrams showing the restricting member of the present embodiment, in which FIG. 8A is a side view seen from the inside, and FIG. 8B and FIG. 8C are perspective views seen from the inside. 5 is a schematic view showing a state in which a water side auxiliary pipe member and a hot water side auxiliary pipe member of the embodiment abut against a cylinder body. FIG. 11 is a schematic explanatory diagram showing a case where temperature adjustment is performed according to the rotational position of a cylinder body, and flow rate adjustment is performed according to the axial position of the cylinder body. FIG. 11 is a schematic explanatory diagram showing a case where temperature adjustment is performed according to the axial position of a cylinder body, and flow rate adjustment is performed according to the rotational position of the cylinder body. FIG.

Next, a faucet valve device according to one embodiment of the present invention will be described with reference to the attached drawings. The faucet valve device 100 of this embodiment is a faucet valve device suitable for achieving motorization of both temperature regulation and flow rate regulation.

Figure 1 is a schematic perspective view of a faucet valve device 100 according to one embodiment of the present invention, Figure 2 is a schematic front view of the faucet valve device 100 of this embodiment, Figure 3 is a schematic vertical cross-sectional perspective view of the faucet valve device 100 of this embodiment, and Figure 4 is a schematic vertical cross-sectional view of the faucet valve device 100 of this embodiment. Also, Figure 5 is an enlarged view of the cylinder body portion of Figure 4, and Figure 6 is a schematic perspective view showing the cylinder body 30 and shaft body 20 of this embodiment.

As shown in Figures 1 to 6, the faucet valve device 100 of this embodiment includes a cylinder body 30 configured in a hollow cylindrical shape and a housing body 10 that accommodates the cylinder body 30 so that it can move axially and rotate.

[Cylinder body 30]
The cylinder body 30 has, for example, an outer diameter of 15 mm, a wall thickness of 0.5 mm, and an axial length of 50 mm, and is made of stainless steel. When the cylinder body 30 is made of a resin material, it is preferable to make the wall thicker.

Referring particularly to FIG. 5, a resin-made right end wall 31 is fitted to the right end of the cylinder body 30, and a resin-made left end wall 32 is fitted to the left end of the cylinder body 30.

A roughly rectangular water inlet hole 34 is provided in the right region of the peripheral wall 33 of the cylinder body 30. The water inlet hole 34 opens, for example, at a circumferential angle (angle measured around the axis) of 0° (which is the basis for the following explanation of angular positions) to 90°, and is formed in an area a certain distance in the axial direction from the right end of the cylinder body 30.

A roughly rectangular hot water inlet hole 35 is provided in the left region of the peripheral wall 33 of the cylinder body 30. The hot water inlet hole 35 opens, for example, at a circumferential angle (measured around the axis) of 90° to 180° (i.e., opens at a different angle position from the water inlet hole 34) and is formed in an area a certain distance in the axial direction from the left end of the cylinder body 30.

A hot and cold water outlet hole 36 is provided in the approximate axial center region of the peripheral wall 33 of the cylinder body 30.

In addition, the cylinder body 30 of this embodiment has a central tube portion 37 that extends from the right end wall 31 to the left end wall 32. A partition wall 38 that extends radially outward from the central tube portion 37 is provided at an axial position corresponding to the hot and cold water outlet hole 36 of the cylinder body 30 (see also FIG. 6).

[Shaft body 20]
The shaft body 20 is inserted into the central tube portion 37 and is fixed to the right end wall 31 and the left end wall 32. This allows the shaft body 20 and the cylinder body 30 to rotate together and move axially together. The shaft body 20 has a diameter of, for example, φ3 and is made of stainless steel.

[Housing body 10]
The internal space of the housing body 10 that accommodates the cylinder body 30 is, for example, a cylindrical space, and a gap is provided between the housing body 10 and a peripheral wall 33 of the cylinder body 30. The housing body 10 is also made of stainless steel. On the other hand, the exterior of the housing body 10 is generally rectangular prism-shaped and made of PPS resin.

Referring particularly to Figures 4 and 5, the left end of the internal space of the housing body 10 is defined by a left side cover member 47. The left side cover member 47 is a generally disk-shaped member that is fitted into the inner peripheral step surface of the housing body 10 via an O-ring 47a. The left side cover member 47 also has a through hole in the center through which the shaft body 20 is inserted. The through hole is sealed by an X-ring 47b while allowing the shaft body 20 to rotate and move axially.

Similarly, the right end of the internal space of the housing body 10 is defined by a right-side cover member 57. The right-side cover member 57 is a generally disk-shaped member that is fitted into the inner peripheral step surface of the housing body 10 via an O-ring 57a. The right-side cover member 57 also has a through-hole in the center through which the shaft body 20 is inserted. The through-hole is sealed by an X-ring 57b while allowing the shaft body 20 to rotate and move axially.

In addition, the housing body 10 is provided with a water supply passage, a hot water supply passage, and a hot and cold water outflow passage that are connected to its internal space.

Specifically, the hot and cold water outlet path in this embodiment is provided by a hot and cold water outlet 15 that is integral with the housing body 10. The hot and cold water outlet 15 opens toward the top of the housing body 10 and is connected to a hot and cold water supply pipe 63, for example, via an elbow connection pipe 62.

The hot and cold water outlet 15 is provided at a size and position that allows all of the hot and cold water outlet holes 36 of the cylinder body 30 to communicate with each other regardless of the position or posture of the cylinder body 30 within its range of motion.

Meanwhile, the water supply passage in this embodiment is provided by a water supply pipe 11 that is removable from the housing body 10, and a water-side communication hole 12 that communicates the inside of the water supply pipe 11 with the internal space of the housing body 10. The water supply pipe 11 is fitted into a connection port 11r provided on the lower surface of the housing body 10 via an O-ring. The water-side communication hole 12 has a circular cross-sectional hole on the water supply pipe 11 side, and a rectangular cross-sectional hole that fits within the circular cross section on the internal space side of the housing body 10 side.

Similarly, the hot water supply path in this embodiment is provided by a hot water supply pipe 13 that is removable from the housing body 10, and a hot water side communication hole 14 that connects the inside of the hot water supply pipe 13 with the internal space of the housing body 10. As with the water supply pipe 11, the hot water supply pipe 13 is fitted into a connection port 13r provided on the lower surface of the housing body 10 via an O-ring. As with the water side communication hole 12, the hot water side communication hole 14 is also a circular cross-sectional hole on the hot water supply pipe 13 side, and a rectangular cross-sectional hole that fits within the circular cross section on the internal space side of the housing body 10.

[Secondary pipe members 16, 18]
The lower side (one example of the first side) of the water side auxiliary pipe member 16 is accommodated inside the water side communication hole 12. The water side auxiliary pipe member 16 is capable of sliding upward or downward inside the water side communication hole 12 according to the water pressure difference between its lower side and its upper side (one example of the second side). Specifically, a packing 17 (water side seal member) is interposed between the water side communication hole 12 and the water side auxiliary pipe member 16, and the packing 17 holds the water side auxiliary pipe member 16 so that it can slide upward or downward relative to the water side communication hole 12. When the water side auxiliary pipe member 16 moves upward, the upper side (one example of the second side) of the water side auxiliary pipe member 16 can abut against the peripheral wall 33 of the cylinder body 30 and can communicate with the water inlet hole 34.

Figure 7 is a schematic perspective view of the water side auxiliary pipe member 16 of this embodiment. As shown in Figure 7, the water side auxiliary pipe member 16 of this embodiment has a flange portion 16f as a water side movement restricting portion that restricts the stroke of sliding movement inside the water side communication hole 12. The flange portion 16f is accommodated in the circular cross-sectional hole on the water supply pipe 11 side of the water side communication hole 12, and is sized so that it cannot be inserted into the rectangular cross-sectional hole of the water side communication hole 12, and the flange portion 16f abuts against it to restrict the amount of movement of the water side auxiliary pipe member 16. In this embodiment, the stroke of the sliding movement of the water side auxiliary pipe member 16 is 1 mm. In addition, the water side auxiliary pipe member 16 has a groove portion 16g for fitting the packing 17.

As shown in FIG. 7, the upper surface 16r of the water side auxiliary pipe member 16 is part of a cylindrical surface with a radius of curvature of 10 mm (preferably 5 mm to 15 mm) at the time of shipment (before use). In other words, the radius of curvature is slightly larger than the radius of curvature (8.5 mm) of the peripheral wall 33 of the cylinder body 30. This prevents a state in which only both ends of the upper surface 16r of the water side auxiliary pipe member 16 in the arc-shaped direction abuts against the cylinder body 30 (a state that can occur when the relationship between the radii of curvature is reversed), i.e., the state in which the center of the upper surface 16r of the water side auxiliary pipe member 16 in the arc-shaped direction abuts against the cylinder body 30 is ensured, and the degree of adhesion between the upper surface 16r of the water side auxiliary pipe member 16 and the cylinder body 30 is good.

The hardness of the water side auxiliary pipe member 16 (at least the upper surface) is less than the hardness of the peripheral wall 33 of the cylinder body 30. This prevents the peripheral wall 33 of the cylinder body 30 from being undesirably worn, while the upper surface 16r of the water side auxiliary pipe member 16 is expected to wear in accordance with the peripheral wall 33 of the cylinder body 30, which is favorable for the adhesion performance between the upper surface 16r of the water side auxiliary pipe member 16 and the cylinder body 30. On the other hand, the flange portion 16f, which serves as the water side movement restriction portion, restricts the amount of movement, so that excessive wear can also be suppressed.

The hardness is determined, for example, by the Vickers hardness obtained by a test specified in ISO 6507 (JIS Z 2244). The water side auxiliary pipe member 16 of this embodiment is made of polyacetal resin, and its hardness is significantly smaller than that of the peripheral wall 33 of the cylinder body 30, which is made of stainless steel.

The size and position (in the axial direction of the housing body 10) of the pipe hole 16h of the water side auxiliary pipe member 16 are controlled to maximize the amount of communication between the water side auxiliary pipe member 16 and the water inlet hole 34, and are sized and positioned so that they can communicate with the entire water inlet hole 34 (see Figures 9 and 10 described below).

Similarly, the lower side (one example of one side) of the hot water side auxiliary pipe member 18 is accommodated inside the hot water side communication hole 14. The hot water side auxiliary pipe member 18 can slide upward or downward inside the hot water side communication hole 14 depending on the water pressure difference between its lower side and its upper side (one example of the other side). Specifically, a packing 19 (hot water side seal member) is interposed between the hot water side communication hole 14 and the hot water side auxiliary pipe member 18, and the packing 19 holds the hot water side auxiliary pipe member 18 so that it can slide upward or downward relative to the hot water side communication hole 14. When the hot water side auxiliary pipe member 18 moves upward, the upper side (one example of the other side) of the hot water side auxiliary pipe member 18 can abut against the peripheral wall 33 of the cylinder body 30 and can communicate with the hot water inlet hole 35.

Figure 7 is also a schematic perspective view of the hot water side auxiliary pipe member 18 of this embodiment. As shown in Figure 7, the hot water side auxiliary pipe member 18 of this embodiment also has a flange portion 18f as a hot water side movement restricting portion that restricts the stroke of sliding movement inside the hot water side communication hole 14. The flange portion 18f is accommodated in the circular cross-sectional hole on the hot water supply pipe 13 side of the hot water side communication hole 14, and is sized so that it cannot be inserted into the rectangular cross-sectional hole of the hot water side communication hole 14, and the flange portion 18f abuts against it to restrict the movement amount of the hot water side auxiliary pipe member 18. In this embodiment, the stroke of the sliding movement of the hot water side auxiliary pipe member 18 is 5 mm. In addition, the hot water side auxiliary pipe member 18 has a groove portion 18g for fitting the packing 19.

As shown in FIG. 7, the upper surface 18r of the hot water side auxiliary pipe member 18 is also part of a cylindrical surface with a radius of curvature of 10 mm (preferably in the range of 5 mm to 15 mm) at the time of shipment (before use). That is, the radius of curvature is slightly larger than the radius of curvature (8.5 mm) of the peripheral wall 33 of the cylinder body 30. This prevents a state in which only both ends of the upper surface 18r of the hot water side auxiliary pipe member 18 in the arc-shaped direction come into contact with the cylinder body 30 (a state that can occur when the relationship between the radii of curvature is reversed). In other words, a state in which the center of the upper surface 18r of the hot water side auxiliary pipe member 18 in the arc-shaped direction comes into contact with the cylinder body 30 is ensured, and the degree of adhesion between the upper surface 18r of the hot water side auxiliary pipe member 18 and the cylinder body 30 is improved.

The hardness of the hot water side auxiliary pipe member 18 (at least the upper surface) is also less than the hardness of the peripheral wall 33 of the cylinder body 30. This prevents the peripheral wall 33 of the cylinder body 30 from being undesirably worn, while the upper surface 18r of the hot water side auxiliary pipe member 18 is expected to wear in accordance with the peripheral wall 33 of the cylinder body 30, which is favorable for the adhesion performance between the upper surface 18r of the hot water side auxiliary pipe member 18 and the cylinder body 30. On the other hand, the amount of movement is restricted by the flange portion 18f, which serves as a hot water side movement restricting portion, so that excessive wear can also be prevented.

The hot water side auxiliary pipe member 18 in this embodiment is also made of polyacetal resin, and its hardness is significantly less than that of the peripheral wall 33 of the cylinder body 30, which is made of stainless steel.

The size and position (in the axial direction of the housing body 10) of the pipe hole 18h of the hot water side auxiliary pipe member 18 are controlled to maximize the amount of communication between the hot water side auxiliary pipe member 18 and the hot water inlet hole 35, and are sized and positioned so that they can communicate with the entire hot water inlet hole 35 (see Figures 9 and 10 described below).

[First operating mechanism 40]
1 to 4, a first operating mechanism 40 is provided on the left side (one axial side) of the cylinder body 30. The first operating mechanism 40 has a first operating part 41 that is provided so as to be rotatable. In this embodiment, the first operating part 41 is a stepping motor that receives a control command from a control main body (not shown) and can be rotated by the control command.

In this embodiment, the shaft body 20 and the cylinder body 30 are adapted to change their rotational positions without changing their axial positions by rotating the first operating part 41.

Specifically, as shown in FIG. 4, the rotating shaft (output shaft) 41s of the first operating unit 41 is fixed to the bottom of the rotating cylinder 42 in both the axial direction and the rotational direction. The rotating cylinder 42 is positioned so that its bottom is located on the left side, and is held rotatably about its axis within the housing cylinder 45.

The housing cylinder 45 also holds the main body of the first operating part 41 (near the rotation axis 41s) on its left side via a retaining ring 44. The housing cylinder 45 is also connected (fitted) on its right side to the left end of the housing body 10 and the left cover member 47 via a connecting ring 46. A plastic sliding bearing (bush) 46b for inserting the shaft body 20 is provided in the center of the connecting ring 46 (see Figure 5).

The right side (opposite the bottom) of the rotating cylinder 42 is open, and the sliding cylinder 43 is fitted to it so that it can slide in the axial direction, and the rotating cylinder 42 and the sliding cylinder 43 are fixed in the rotation direction. For example, the sliding cylinder 43 has four convex parts that protrude in a cross shape in the axial cross section, and the rotating cylinder 42 has four concave parts that accommodate the four convex parts so that they can slide in the axial direction. That is, each of the four convex parts is accommodated in each of the four concave parts, and when the rotating cylinder 42 rotates, the sliding cylinder 43 also rotates in the same way. When the sliding cylinder 43 rotates, the shaft body 20 and the cylinder body 30 also rotate in the same way. On the other hand, the sliding cylinder 43 is stored in the rotating cylinder 42 without being fixed in the axial direction. That is, even if the shaft body 20 moves in the axial direction, the rotating cylinder 42 is prevented from moving in the axial direction, or the rotating cylinder 42 rotates without applying force in the axial direction. (Therefore, even if the operating force of the second operating part 51 described below is relatively small, the shaft body 20 and the cylinder body 30 can be moved sufficiently in the axial direction.)

The sliding tube 43 is fixed to the left end of the shaft body 20. As a result, the sliding tube 43 is fixed in the rotational direction relative to the rotation shaft 41s of the first operating part 41 as the first connecting member, while being movable in the axial direction relative to the rotation shaft 41s of the first operating part 41.

In this embodiment, the first operating unit 41 provides a rotational operation of up to 90° + α.

[Second operating mechanism 50]
On the other hand, a second operation mechanism 50 is provided on the right side (the other axial side) of the cylinder body 30. The second operation mechanism 50 has a second operation part 51 that is provided so as to be rotatable. In this embodiment, the second operation part 51 is also a stepping motor that receives a control command wirelessly from a control main body part (not shown) and can be rotated by the control command.

In this embodiment, the shaft body 20 and the cylinder body 30 are adapted to change their axial positions without changing their rotational positions by rotating the second operating part 51.

Specifically, as shown in FIG. 4, the rotating shaft (output shaft) 51s of the second operating unit 51 is fixed to the bottom of the rotating cylinder 52 in both the axial and rotational directions. The rotating cylinder 42 is positioned so that its bottom is located on the right side, and is held rotatably about its axis within the housing cylinder 55.

The housing cylinder 55 also holds the main body of the second operating part 51 (near the rotation axis 51s) on its right side via a retaining ring 54. The housing cylinder 55 is also connected (fitted) on its left side to the right end of the housing body 10 and the right cover member 57 via a connecting ring 56. A resin sliding bearing (bush) 56b for inserting the shaft body 20 is also provided in the center of the connecting ring 56 (see Figure 5).

Inside the rotating cylinder 52, a space corresponding to the trapezoidal two-thread female thread of pitch 16 is formed, and the left side (opposite the bottom) is open. A screw body 53 corresponding to the trapezoidal two-thread male thread of pitch 16 is screwed into the space. The left end of the screw body 53 is located further left than the left end of the rotating cylinder 52, and has a protrusion 53p (e.g., two places, top and bottom) that protrudes into the axial grooves 55g, 56g (e.g., two places, top and bottom) provided on the inner surface of the housing cylinder 55 (and in this embodiment, the inner surface of the cylindrical part of the connecting ring 56), and is capable of sliding in the axial direction within the axial grooves 55g, 56g. As a result, when the output shaft 51s of the second operating unit 51 rotates, the rotating cylinder 52 also rotates, while the screw body 53 moves in the axial direction due to the screwing of the internal space of the rotating cylinder 52 with the screw body 53 and the engagement of the axial grooves 55g, 56g with the protrusion 53p.

The screw body 53 holds the right end of the shaft body 20 via a pair of retaining rings 58. As a result, the screw body 53 and the shaft body 20 are rotatable relative to each other, but are fixed in the axial direction, and the shaft body 20 moves in the axial direction due to the axial movement of the screw body 53. In other words, the shaft body 20 is stored in the rotating cylinder 52 in a state in which it can rotate relative to the screw body 53, and even if the shaft body 20 rotates, the screw body 53 is prevented from rotating in the same way, or the screw body 53 rotates freely without applying force in the rotational direction. (Therefore, even if the operating force of the first operating unit 41 described above is relatively small, the shaft body 20 and the cylinder body 30 can rotate sufficiently.)

With the above configuration, the rotating cylinder 52 (the space corresponding to the trapezoidal two-thread female screw) serves as a direction conversion member to convert the rotational operating force of the second operating part 51 into an axial movement force, and the threaded body 53 and the retaining ring 58 serve as a second connecting member to receive the axial movement force converted by the rotating cylinder 52.

In this embodiment, the second operating unit 51 provides a rotational operation of up to approximately 150°. As a result, the shaft body 20 (and the cylinder body 30) has a movement stroke of approximately 6.0 mm in the axial direction.

[Regulation member of second operation unit]
The faucet valve device 100 of this embodiment further includes a restricting member capable of adjusting the rotational range of the second operating part 51 as desired. Specifically, as shown in Fig. 8, a protruding region 54p provided on the inner peripheral surface of the retaining ring 54 functions as a restricting member and obstructs a part of the rotational orbit of a stopper 52s provided on the outer peripheral surface of the rotating cylinder 52, thereby making it possible to adjust the rotational range of the rotating cylinder 52 (i.e., the rotational range of the second operating part).

Figure 8(a) is a side view of the protruding region 54p provided on the inner peripheral surface of the retaining ring 54, as viewed from the inside, and Figures 8(b) and 8(c) are perspective views of the protruding region 54p as viewed from the inside. As shown in Figures 8(a) to 8(c), in this embodiment, the protruding region 54p extends over approximately 210°, so the rotational range of the rotating cylinder 52 (i.e., the rotational range of the second operating part) is restricted to approximately 150°.

The fixed position of the retaining ring 54 relative to the housing cylinder 55 can be manually adjusted in the circumferential direction using the long hole 54h. This allows the rotational range of the rotating cylinder 52 (i.e., the rotational range of the second operating part 51) to be adjusted to match the axial range of the desired shaft body 20 (and cylinder body 30). In other words, the adjustment of the axial range of the shaft body 20 and cylinder body 30 relative to the housing body 10 can be achieved by adjusting the rotational range of the second operating part 51 by adjusting the fixed position of the retaining ring 54 (regulating member). Therefore, even if there is individual variation in each part based on manufacturing tolerances, etc., the desired flow rate adjustment or temperature adjustment described below can be achieved with high precision.

[Both ends of shaft body 20]
Due to the above-mentioned configuration, both ends of the shaft body 20 in this embodiment are located within an area that is blocked off so as not to communicate with the internal space of the housing body 10, and are open to the atmosphere (receive atmospheric pressure rather than water pressure).

Specifically, the left end of the shaft body 20 is blocked from communication with the internal space of the housing body 10 by a plastic sliding bearing (bush) 46b and an X-ring 47b, and the right end of the shaft body 20 is blocked from communication with the internal space of the housing body 10 by a plastic sliding bearing (bush) 56b and an X-ring 57b.

This significantly reduces the effect of water pressure in the internal space of the housing body 10 on the shaft body 20. This reduces the torque (force) required to rotate or axially move the shaft body 20 (and the cylinder body 30), i.e., the torque required for each of the first operating part 41 and the second operating part 51 is small. It is even better if the diameters of the parts of the shaft body 20 that are blocked are the same.

In addition, both ends of the shaft body 20 are maintained in an atmosphere-open state even if the axial position of the shaft body 20 is changed by rotating the second operating unit 51. This allows only small torque to be required for each of the first operating unit 41 and the second operating unit 51 even if the axial position of the shaft body 20 is changed.

In addition, the housing body 10 has a left cover member 47 and a right cover member 57 to divide the internal space, and by removing these cover members 47, 57, the internal parts of the housing body 10 can be easily assembled or disassembled (e.g., for maintenance, etc.).

Furthermore, in this embodiment, each of the cover members 47, 57 of the housing body 10 is located inward from the axial end of the housing body 10, thereby reducing the length of the shaft body 20.

[Water stop function]
The faucet valve device 100 of this embodiment further includes a hot and cold water stopper that stops the flow of hot and cold water. Even if the cylinder body 30 does not have perfect sealing performance in order to minimize the sliding resistance of the cylinder body 30 and reduce the operating torque required for flow rate adjustment and temperature adjustment, a separate hot and cold water stopper can be provided to ensure reliable water stoppage.

Specifically, the hot and cold water stop section has a water stop section 11s provided on the upstream side of the water supply passage, and a hot and cold water stop section 13s provided on the upstream side of the hot water supply passage (see Figure 2). This prevents hot or cold water from flowing back to the other upstream side.

[Function of the faucet valve device 100]
Next, the operation of the faucet valve device 100 of this embodiment will be described.

With the above-mentioned configuration, the cylinder body 30 of this embodiment is adapted to change the rotational position without changing the axial position by rotating the first operating part 41, while it is adapted to change the axial position without changing the rotational position by rotating the second operating part 51.

The amount of communication between the water side auxiliary pipe member 16 (water supply passage) and the water inlet hole 34, and the amount of communication between the hot water side auxiliary pipe member 18 (hot water supply passage) and the hot water inlet hole 35 change depending on the axial position and rotational position of the cylinder body 30, thereby realizing both temperature adjustment and flow rate adjustment. In this embodiment, the hot water outlet hole 36 and the hot water outlet passage are always maintained in a good state of communication. Figure 9 is a schematic diagram showing the state in which the water side auxiliary pipe member 16 and the hot water side auxiliary pipe member 18 of this embodiment abut against the cylinder body 30.

In this embodiment, the ratio of the amount of communication between the water side auxiliary pipe member 16 (water supply passage) and the water inlet hole 34 and the amount of communication between the hot water side auxiliary pipe member 18 (hot water supply passage) and the hot water inlet hole 35 is changed by rotating the first operating part 41, thereby realizing temperature adjustment. Then, the total amount of communication, which is the sum of the amount of communication between the water side auxiliary pipe member 16 (water supply passage) and the water inlet hole 34 and the amount of communication between the hot water side auxiliary pipe member 18 (hot water supply passage) and the hot water inlet hole 35, is changed by rotating the second operating part 51, thereby realizing flow rate adjustment.

Figure 10 is a schematic diagram of the position control of the cylinder body 30 in this embodiment. In this embodiment, temperature adjustment is performed according to the rotational position of the cylinder body 30, and flow rate adjustment is performed according to the axial position of the cylinder body 30.

Figure 10 (a) shows the schematic position of the water inlet hole 34 and hot water inlet hole 35 in the peripheral wall 33 of the cylinder body 30.

Figure 10 (b) shows a schematic diagram of a state in which the amount of communication between the water side auxiliary pipe member 16 (hot water/cold water supply path) and the water inlet hole 34 is at its maximum, and the communication between the hot water side auxiliary pipe member 18 (hot water supply path) and the hot water inlet hole 35 is blocked. At this time, the hot water/cold water mixture output through the hot water/cold water outlet hole 36 and the hot water/cold water outlet path is 100% water and 0% hot water (the flow rate is 100%).

Figure 10 (c) shows a schematic diagram of a state in which the shaft body 20 and cylinder body 30 have changed their rotational positions by rotating the first operating part 41 from the state shown in Figure 10 (b), and the communication between the water side auxiliary pipe member 16 (water supply passage) and the water inlet hole 34 is 50%, and the communication between the hot water side auxiliary pipe member 18 (hot water supply passage) and the hot water inlet hole 35 is also 50%. At this time, the hot and cold water mixture output through the hot and cold water outlet hole 36 and the hot and cold water outlet passage is 50% water and 50% hot water (the flow rate is 100%).

Figure 10 (d) shows a schematic diagram of a state in which the shaft body 20 and the cylinder body 30 change their rotational positions by further rotating the first operating part 41 from the state shown in Figure 10 (c), blocking communication between the water side auxiliary pipe member 16 (water supply passage) and the water inlet hole 34, and the amount of communication between the hot water side auxiliary pipe member 18 (hot water supply passage) and the hot water inlet hole 35 is at its maximum. At this time, the hot and cold water mixture output through the hot and cold water outlet hole 36 and the hot and cold water outlet passage is 0% water and 100% hot water (the flow rate is 100%).

Figure 10(e) shows a schematic diagram of a state in which the shaft body 20 and cylinder body 30 have changed their rotational positions by further rotating the first operating part 41 from the state shown in Figure 10(c), so that the communication between the water side auxiliary pipe member 16 (water supply passage) and the water inlet hole 34 is 45%, and the communication between the hot water side auxiliary pipe member 18 (hot water supply passage) and the hot water inlet hole 35 is 55%. At this time, the hot and cold water mixture output through the hot and cold water outlet hole 36 and the hot and cold water outlet passage is 45% water and 55% hot water (the flow rate is 100%).

Figure 10(f) shows a schematic diagram of a state in which the shaft body 20 and the cylinder body 30 have changed their axial positions by further rotating the second operating part 51 from the state shown in Figure 10(e), so that the communication between the water side auxiliary pipe member 16 (water supply passage) and the water inlet hole 34 is 22.5%, and the communication between the hot water side auxiliary pipe member 18 (hot water supply passage) and the hot water inlet hole 35 is 27.5%. At this time, the hot and cold water mixture output through the hot and cold water outlet hole 36 and the hot and cold water outlet passage is 45% water and 55% hot water, but the flow rate is 50%.

Figure 10 (g) shows a schematic diagram of a state in which the shaft body 20 and the cylinder body 30 have changed their axial positions by further rotating the second operating part 51 from the state shown in Figure 10 (f), blocking communication between the water side auxiliary pipe member 16 (water supply passage) and the water inlet hole 34, and blocking communication between the hot water side auxiliary pipe member 18 (hot water supply passage) and the hot water inlet hole 35. At this time, the hot and cold water mixture output through the hot and cold water outlet hole 36 and the hot and cold water outlet passage is 0% water and 0% hot water (i.e., the flow rate is 0%).

As shown in Figures 10(a) to 10(g), in this embodiment, the ratio of the amount of communication between the water side auxiliary pipe member 16 (water supply passage) and the water inlet hole 34 and the amount of communication between the hot water side auxiliary pipe member 18 (hot water supply passage) and the hot water inlet hole 35 is changed by rotating the first operating part 41, thereby realizing temperature adjustment, and the total amount of communication between the water side auxiliary pipe member 16 (water supply passage) and the water inlet hole 34 and the amount of communication between the hot water side auxiliary pipe member 18 (hot water supply passage) and the hot water inlet hole 35 is changed by rotating the second operating part 51, thereby realizing flow rate adjustment.

The first operating unit 41 and the second operating unit 51 can be rotated simultaneously. When the first operating unit 41 and the second operating unit 51 are rotated simultaneously, the shaft body 20 and the cylinder body 30 change their rotational positions while changing their axial positions. In this way, by operating the first operating unit 41 and the second operating unit 51 simultaneously, it is possible to achieve more rapid temperature and flow rate adjustments.

[Modification]
In the above-described embodiment, it is also possible to switch the functions of the first operating unit 41 and the second operating unit 51, for example, by changing the positions of the water inlet hole 34 and the hot water inlet hole 35. That is, the rotation of the first operating unit 41 changes the total communication amount, which is the sum of the communication amount between the water side auxiliary pipe member 16 (water supply path) and the water inlet hole 34 and the communication amount between the hot water side auxiliary pipe member 18 (hot water supply path) and the hot water inlet hole 35, to realize flow rate adjustment, and the rotation of the second operating unit 51 changes the ratio of the communication amount between the water side auxiliary pipe member 16 (water supply path) and the water inlet hole 34 and the communication amount between the hot water side auxiliary pipe member 18 (hot water supply path) and the hot water inlet hole 35 to realize temperature adjustment.

In such a modified example, for example, the water inlet hole 34 opens at a circumferential angle (measured around the axis) of 0° to 90° and is formed in an area a certain distance in the axial direction from the right end of the cylinder body 30.

For example, the hot water inlet hole 35 opens at a circumferential angle (measured around the axis) of 0° to 90° (i.e., opens at the same angular position as the water inlet hole 34) and is formed in an area a certain distance in the axial direction from the left end of the cylinder body 30.

Figure 11 is a schematic diagram of the position control of the cylinder body 30 in this modified example. In this modified example, the temperature is adjusted according to the axial position of the cylinder body 30, and the flow rate is adjusted according to the rotational position of the cylinder body 30.

Figure 11 (a) shows the schematic position of the water inlet hole 34 and hot water inlet hole 35 in the peripheral wall 33 of the cylinder body 30.

Figure 11 (b) shows a schematic diagram of a state in which the amount of communication between the water side auxiliary pipe member 16 (water supply passage) and the water inlet hole 34 is at its maximum, and the communication between the hot water side auxiliary pipe member 18 (hot water supply passage) and the hot water inlet hole 35 is cut off. At this time, the hot and cold water mixture output through the hot and cold water outlet hole 36 and the hot and cold water outlet passage is 100% water and 0% hot water (the flow rate is 100%).

Figure 11 (c) shows a schematic diagram of a state in which the shaft body 20 and the cylinder body 30 change their axial positions by rotating the second operating part 51 from the state shown in Figure 11 (b), and the communication between the water side auxiliary pipe member 16 (water supply passage) and the water inlet hole 34 is 50%, and the communication between the hot water side auxiliary pipe member 18 (hot water supply passage) and the hot water inlet hole 35 is also 50%. At this time, the hot and cold water mixture output through the hot and cold water outlet hole 36 and the hot and cold water outlet passage is 50% water and 50% hot water (the flow rate is 100%).

Figure 11 (d) shows a schematic diagram of a state in which the shaft body 20 and the cylinder body 30 change their axial positions by further rotating the second operating part 51 from the state shown in Figure 11 (c), blocking communication between the water side auxiliary pipe member 16 (water supply passage) and the water inlet hole 34, and the amount of communication between the hot water side auxiliary pipe member 18 (hot water supply passage) and the hot water inlet hole 35 is at its maximum. At this time, the hot and cold water mixture output through the hot and cold water outlet hole 36 and the hot and cold water outlet passage is 0% water and 100% hot water (the flow rate is 100%).

Figure 11 (e) shows a schematic diagram of a state in which the shaft body 20 and the cylinder body 30 have changed their axial positions by further rotating the second operating part 51 from the state shown in Figure 11 (c), so that the communication between the water side auxiliary pipe member 16 (water supply passage) and the water inlet hole 34 is 45%, and the communication between the hot water side auxiliary pipe member 18 (hot water supply passage) and the hot water inlet hole 35 is 55%. At this time, the hot and cold water mixture output through the hot and cold water outlet hole 36 and the hot and cold water outlet passage is 45% water and 55% hot water (the flow rate is 100%).

Figure 11 (f) shows a schematic diagram of a state in which the shaft body 20 and cylinder body 30 have changed their rotational positions by further rotating the first operating part 41 from the state shown in Figure 11 (e), so that the communication between the water side auxiliary pipe member 16 (water supply passage) and the water inlet hole 34 is 22.5%, and the communication between the hot water side auxiliary pipe member 18 (hot water supply passage) and the hot water inlet hole 35 is 27.5%. At this time, the hot and cold water mixture output through the hot and cold water outlet hole 36 and the hot and cold water outlet passage is 45% water and 55% hot water, but the flow rate is 50%.

Figure 11 (g) shows a schematic diagram of a state in which the shaft body 20 and the cylinder body 30 have changed their rotational positions by further rotating the first operating part 41 from the state shown in Figure 11 (f), blocking communication between the water side auxiliary pipe member 16 (water supply passage) and the water inlet hole 34, and blocking communication between the hot water side auxiliary pipe member 18 (hot water supply passage) and the hot water inlet hole 35. At this time, the hot and cold water mixture output through the hot and cold water outlet hole 36 and the hot and cold water outlet passage is 0% water and 0% hot water (i.e., the flow rate is 0%).

As shown in Figures 11(a) to 11(g), in this modified example, the ratio of the amount of communication between the water side auxiliary pipe member 16 (water supply passage) and the water inlet hole 34 and the amount of communication between the hot water side auxiliary pipe member 18 (hot water supply passage) and the hot water inlet hole 35 is changed by rotating the second operating unit 51, thereby realizing temperature adjustment, and the total amount of communication between the water side auxiliary pipe member 16 (water supply passage) and the water inlet hole 34 and the amount of communication between the hot water side auxiliary pipe member 18 (hot water supply passage) and the hot water inlet hole 35 is changed by rotating the first operating unit 41, thereby realizing flow rate adjustment.

[Basic effect]
As described above, according to the faucet valve device 100 of this embodiment, a compact faucet valve design can be realized because both temperature adjustment and flow rate adjustment are realized according to the axial position and rotational position of the common cylinder body 30. In addition, since there is no hindrance to the motorization of the first operating part 41 and the second operating part 51, it is suitable for realizing the motorization of both temperature adjustment and flow rate adjustment.

In addition, according to the faucet valve device 100 of this embodiment, the ratio of the communication amount between the water side auxiliary pipe member 16 (water supply passage) and the water inlet hole 34 and the communication amount between the hot water side auxiliary pipe member 18 (hot water supply passage) and the hot water inlet hole 35 is changed by rotating the first operating part 41, thereby realizing temperature adjustment. Then, the total communication amount, which is the sum of the communication amount between the water side auxiliary pipe member 16 (water supply passage) and the water inlet hole 34 and the communication amount between the hot water side auxiliary pipe member 18 (hot water supply passage) and the hot water inlet hole 35, is changed by rotating the second operating part 51, thereby realizing flow rate adjustment.

However, it is also possible to switch the functions of the first operating unit 41 and the second operating unit 51 by changing the positions of the water inlet hole 34 and the hot water inlet hole 35 in the cylinder body 30. That is, the ratio of the communication amount between the water side auxiliary pipe member 16 (water supply path) and the water inlet hole 34 and the communication amount between the hot water side auxiliary pipe member 18 (hot water supply path) and the hot water inlet hole 35 is changed by rotating the second operating unit 51, thereby realizing temperature adjustment, and the total communication amount of the communication amount between the water side auxiliary pipe member 16 (water supply path) and the water inlet hole 34 and the communication amount between the hot water side auxiliary pipe member 18 (hot water supply path) and the hot water inlet hole 35 is changed by rotating the first operating unit 41, thereby realizing flow rate adjustment.

In addition, according to the faucet valve device 100 of this embodiment, a shaft body 20 is provided that changes its rotational position without changing its axial position by rotating the first operating part 41, and changes its axial position without changing its rotational position by rotating the second operating part 51, and the cylinder body 30 is fixed (connected) to the shaft body 20. As a result, the control for changing the position of the cylinder body 30 is realized with a relatively simple configuration by the control for changing the position of the shaft body 20.

In addition, according to the faucet valve device 100 of this embodiment, the first operating part 41 and the second operating part 51 can be rotated simultaneously, and when the first operating part 41 and the second operating part 51 are rotated simultaneously, the shaft body 20 and the cylinder body 30 change their rotational positions while changing their axial positions. As a result, by operating the first operating part 41 and the second operating part 51 simultaneously, more rapid temperature adjustment and flow rate adjustment can be achieved.

In addition, according to the faucet valve device 100 of this embodiment, a sliding tube 43 is provided as a first connecting member that is fixed (connected) to the shaft body 20 and fixed in the rotational direction relative to the first operating part 41, and the sliding tube 43 is movable in the axial direction relative to the first operating part 41. This ensures that the rotational operation of the first operating part 41 can be transmitted as a rotational force of the shaft body 20, while the presence of the sliding tube 43 (first connecting member) does not impede the operation of the second operating part 51.

The faucet valve device 100 of this embodiment is provided with a rotating cylinder 52 as a direction changing member that converts the rotational operating force of the second operating part 51 into an axial moving force, and a screw body 53 and a retaining ring 58 as second connecting members that are axially fixed while allowing relative rotation with respect to the shaft body 20 and receive the axial moving force converted by the rotating cylinder 52. This allows the rotational operation of the second operating part 51 to be reliably transmitted as an axial moving force of the shaft body 20.

In addition, according to the faucet valve device 100 of this embodiment, the protruding region 54p of the retaining ring 54 is provided as a regulating member that can adjust the rotational range of the second operating part 51 as desired. As a result, the adjustment of the range of motion of the axial position of the cylinder body 30 relative to the housing body 10 can be achieved by adjusting the rotational range of the second operating part 51 using the protruding region 54p of the retaining ring 54, so that the desired flow rate adjustment or temperature adjustment can be achieved even if there are individual variations in each part based on manufacturing tolerances, etc.

[Effect of being open to the atmosphere]
Furthermore, according to the faucet valve device 100 of this embodiment, the shaft body 20 penetrates the cylinder body 30 in the axial direction, and both ends of the shaft body 20 are in an area that does not communicate with the internal space of the housing body 10 and are open to the atmosphere. This significantly reduces the effect of water pressure in the internal space of the housing body 10 on the shaft body 20. This reduces the torque (force) required to rotate or move the shaft body 20 in the axial direction, which is very convenient for achieving motorization.

In particular, according to the faucet valve device 100 of this embodiment, the left end of the shaft body 20 is blocked from communication with the internal space of the housing body 10 by the resin sliding bearing (bush) 46b and the X-ring 47b, and the right end of the shaft body 20 is blocked from communication with the internal space of the housing body 10 by the resin sliding bearing (bush) 56b and the X-ring 57b. This effectively suppresses the effect of water pressure in the internal space of the housing body 10 on the shaft body 20. In addition, the diameters of the parts at both the left and right ends of the shaft body 20 that are blocked from communication with the internal space of the housing body 10 are equal, and are configured to cancel out the acting water pressure.

Furthermore, according to the faucet valve device 100 of this embodiment, both ends of the shaft body 20 are maintained in an atmosphere-open state even if the axial position of the shaft body 20 is changed by rotating the second operating part 51. As a result, even if the axial position of the shaft body 20 is changed, the torque required for each of the first operating part 41 and the second operating part 51 is small, which is very convenient for realizing electrification.

In addition, according to the faucet valve device 100 of this embodiment, a left lid member 47 and a right lid member 57 are provided to divide the internal space of the housing body 10. This makes it easy to assemble or disassemble (for example, for maintenance, etc.) the internal parts of the housing body 10 by removing the left lid member 47 and/or the right lid member 57.

Furthermore, according to the faucet valve device 100 of this embodiment, the left cover member 47 and the right cover member 57 are each located inward from the axial end of the housing body 10. This reduces the length of the shaft body 20, which is convenient for making the faucet valve device 100 more compact.

In addition, according to the faucet valve device 100 of this embodiment, there is no rubber elastic member (so-called packing) between the housing body 10 and the cylinder body 30, and the housing body 10 and the cylinder body 30 are in direct contact with each other to provide a certain degree of sealing. This reduces the risk of undesired obstruction of the operation of the cylinder body 30 inside the housing body 10. This also contributes to the fact that only a small torque (force) is required to change the axial and rotational positions of the cylinder body 30.

[Effects of the water side auxiliary pipe member and the hot water side auxiliary pipe member]
Furthermore, according to the faucet valve device 100 of this embodiment, the water side auxiliary pipe member 16 can abut against the peripheral wall 33 of the cylinder body 30 and can communicate with the water inlet hole 34 in response to the water pressure difference between its one side and the other side, and similarly, the hot water side auxiliary pipe member 18 can abut against the peripheral wall 33 of the cylinder body 30 and can communicate with the hot water inlet hole 35 in response to the water pressure difference between its one side and the other side, so that the supply of water and hot water to the inside of the cylinder body 30 can be reliably assisted, and there is no need to interpose a rubber elastic member between the housing body 10 and the cylinder body 30. This also contributes to the fact that the torque (force) required to change the axial position and rotational position of the cylinder body 30 can be small.

In addition, according to the faucet valve device 100 of this embodiment, the water side auxiliary pipe member 16 has a water side movement regulating portion that regulates the stroke of sliding movement relative to the water supply passage, and the hot water side auxiliary pipe member 18 has a hot water side movement regulating portion that regulates the stroke of sliding movement relative to the hot water supply passage. This allows the movement stroke of the water side auxiliary pipe member 16 and the hot water side auxiliary pipe member 18 to be regulated to a desired range, preventing them from protruding more than necessary toward the cylinder body 30.

In particular, according to the faucet valve device 100 of this embodiment, the water side movement restricting portion is provided as a flange portion 16f having a flange shape, and the hot water side movement restricting portion is also provided as a flange portion 18f having a flange shape. This allows the water side movement restricting portion and the hot water side movement restricting portion to be provided relatively simply.

In addition, according to the faucet valve device 100 of this embodiment, the hardness of the upper surface 16r of the water side auxiliary pipe member 16 and the upper surface 18r of the hot water side auxiliary pipe member 18 are smaller than the hardness of the peripheral wall 33 of the cylinder body 30. This prevents the cylinder body 30 from being undesirably worn. On the other hand, it is rather preferable that the upper surface 16r of the water side auxiliary pipe member 16 and the upper surface 18r of the hot water side auxiliary pipe member 18 wear in accordance with the peripheral wall 33 of the cylinder body 30.

In particular, according to the faucet valve device 100 of this embodiment, the peripheral wall 33 of the cylinder body 30 is a cylindrical surface having a predetermined radius of curvature, the upper surface 16r of the water side auxiliary pipe member 16 is part of a cylindrical surface having a predetermined radius of curvature, and the upper surface 18r of the hot water side auxiliary pipe member 18 is part of a cylindrical surface having a predetermined radius of curvature, and the radius of curvature of the upper surface 16r of the water side auxiliary pipe member 16 and the radius of curvature of the upper surface 18r of the hot water side auxiliary pipe member 18 are larger than the radius of curvature of the peripheral wall 33 of the cylinder body 30. This avoids a situation where only both ends of the upper surface 16r of the water side auxiliary pipe member 16 and the upper surface of the hot water side auxiliary pipe member 18 in the arc-shaped direction come into contact with the cylinder body 30 (ensuring that the center of the arc-shaped direction comes into contact with the cylinder body 30), providing a good degree of contact between the upper surface 16r of the water side auxiliary pipe member 16 and the cylinder body 30, and similarly, a good degree of contact between the upper surface 18r of the hot water side auxiliary pipe member 18 and the cylinder body 30.

The faucet valve device 100 of this embodiment is also provided with a hot and cold water stop section that stops the flow of hot and cold water. This ensures a reliable water stop function even when the water is not completely stopped by simply adjusting the flow rate to the minimum using the flow rate adjustment function (when the sealing function is insufficient in the shutoff control state).

In particular, according to the faucet valve device 100 of this embodiment, the hot and cold water stop section is composed of a water stop section 11s provided on the upstream side of the water supply passage and a hot and cold water stop section 13s provided on the upstream side of the hot water supply passage, preventing hot or cold water from flowing back to the upstream side of the other.

10 Housing body 11 Water supply pipe 11r Connection port 11s Water stop portion 12 Water side communication hole 13 Hot water supply pipe 13r Connection port 13s Hot water stop portion 14 Hot water side communication hole 15 Hot water/water outlet 16 Water side auxiliary pipe member 16f Flange portion 16g Groove portion 16h Pipe hole 16r Upper side (other side) receiving surface 17 Gasket 18 Hot water side auxiliary pipe member 18f Flange portion 18g Groove portion 18h Pipe hole 18r Upper side (other side) receiving surface 19 Gasket 20 Shaft body 30 Cylinder body 31 Right end wall 32 Left end wall 33 Circumferential wall 34 Water inlet hole 35 Hot water inlet hole 36 Hot water/water outlet hole 37 Central pipe portion 38 Partition wall 40 First operating mechanism 41 First operating portion 41s Rotating shaft 42 Rotating cylinder 43 Sliding cylinder 44 Retaining ring 45 Housing cylinder 46 Connection ring 47 Left side cover member 47a O-ring 47b X-ring 50 Second operating mechanism 51 Second operating portion 51s Rotating shaft 52 Rotating cylinder 52s Stopper 53 Screw body 53p Protruding portion 54 Retaining ring 54h Slotted hole 54p Protruding region 55 Housing cylinder 55g Axial groove 56 Connection ring 56g Axial groove 57 Right side cover member 57a O-ring 57b X-ring 58 Retaining ring 61 Decorative plate 62 Elbow connecting pipe 63 Hot and cold water supply pipe 100 Faucet valve device

Claims (9)

a cylinder body having a hollow cylindrical shape and one and the other axial ends closed by respective walls;
A water inlet hole, a hot water inlet hole, and a hot and cold water outlet hole are provided in the peripheral wall of the cylinder body, respectively;
a housing body that accommodates the cylinder body so as to be axially movable and rotatable, and has a water side communication hole, a hot water side communication hole, and a hot and cold water outlet facing a peripheral wall of the cylinder body;
A water supply passage, a hot water supply passage, and a hot water outflow passage are provided in the internal space of the housing body so as to communicate with each other via the water side communication hole, the hot water side communication hole, and the hot water outflow port, respectively;
A first operating portion provided so as to be rotatable;
A second operating portion provided so as to be rotatable;
Equipped with
The cylinder body is adapted to change a rotational position without changing an axial position by a rotational operation of the first operating part, and is adapted to change an axial position without changing a rotational position by a rotational operation of the second operating part,
The circumferential angle of the water inlet hole and the circumferential angle of the hot water inlet hole are different from each other,
By rotating the first operating part, the ratio of the communication amount between the water supply passage and the water inlet hole and the communication amount between the hot water supply passage and the hot water inlet hole is changed to realize temperature adjustment,
By rotating the second operating part, the total communication amount, which is the sum of the communication amount between the water supply path and the water inlet hole and the communication amount between the hot water supply path and the hot water inlet hole, changes, thereby realizing flow rate adjustment.
A faucet valve device characterized by: A cylinder body formed in a hollow cylindrical shape;
A water inlet hole, a hot water inlet hole, and a hot and cold water outlet hole are provided in the peripheral wall of the cylinder body, respectively;
a housing body that accommodates the cylinder body so as to be axially movable and rotatable;
a water supply passage, a hot water supply passage, and a hot and cold water outflow passage, each of which is provided so as to communicate with an internal space of the housing body;
A first operating portion provided rotatably on one axial side of the cylinder body;
A second operating portion provided on the other axial side of the cylinder body so as to be rotatable;
Equipped with
a rotational operation force generated by a rotational operation of the first operating part acts on one axial side of the cylinder body to change the rotational position without changing the axial position, while a rotational operation force generated by a rotational operation of the second operating part acts on the other axial side of the cylinder body to change the axial position without changing the rotational position,
This faucet valve device is characterized in that both temperature adjustment and flow rate adjustment are achieved by changing at least the amount of communication between the water supply passage and the water inlet hole, and the amount of communication between the hot water supply passage and the hot water inlet hole, depending on the axial position and rotational position of the cylinder body. By rotating the first operating part, the ratio of the communication amount between the water supply passage and the water inlet hole and the communication amount between the hot water supply passage and the hot water inlet hole is changed to realize temperature adjustment,
The faucet valve device described in claim 2, characterized in that the flow rate is adjusted by changing the total communication amount, which is the sum of the communication amount between the water supply passage and the water inlet hole and the communication amount between the hot water supply passage and the hot water inlet hole, by rotating the second operating part. By rotating the first operating part, the total communication amount, which is the sum of the communication amount between the water supply path and the water inlet hole and the communication amount between the hot water supply path and the hot water inlet hole, is changed to adjust the flow rate.
The faucet valve device as described in claim 2, characterized in that temperature adjustment is achieved by changing the ratio of the amount of communication between the water supply passage and the water inlet hole and the amount of communication between the hot water supply passage and the hot water inlet hole by rotating the second operating part. The first operating unit and the second operating unit can be rotated simultaneously,
The faucet valve device according to any one of claims 1 to 4, characterized in that when the first operating portion and the second operating portion are rotated simultaneously, the cylinder body changes its rotational position while changing its axial position. A shaft body whose rotational position is changed by a rotational operation of the first operating part without changing the axial position, and whose axial position is changed by a rotational operation of the second operating part without changing the rotational position,
6. The faucet valve device according to claim 1, wherein the cylinder body is connected to the shaft body. a first connecting member that is connected to or integrated with the shaft body and is fixed in a rotational direction to the first operating portion,
The faucet valve device according to claim 6, wherein the first connecting member is arranged so as to be movable in the axial direction relative to the first operating portion. a direction changing member for converting a rotational operating force of the second operating portion into an axial moving force;
A second connection member that is connected to the shaft body and receives the axial moving force converted by the direction conversion member;
Further comprising:
The faucet valve device according to claim 6 or 7, characterized in that the shaft body is arranged so as to be rotatable relative to the second connecting member. The faucet valve device according to any one of claims 1 to 8, further comprising a restricting member capable of adjusting a rotational range of the second operating portion as desired.

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